* [PATCH 01/38] firewire-lib: Rename functions, structure, member for AMDTP
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 02/38] firewire-lib: Add macros instead of fixed value " Takashi Sakamoto
` (37 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This patch renames some functions, structure and member to reuse them in both
AMDTP in/out stream.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 154 +++++++++++++++++++++++-----------------------
sound/firewire/amdtp.h | 64 ++++++++++---------
sound/firewire/dice.c | 46 +++++++-------
sound/firewire/speakers.c | 47 +++++++-------
4 files changed, 159 insertions(+), 152 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 9048777..16fe858 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -34,13 +34,13 @@
static void pcm_period_tasklet(unsigned long data);
/**
- * amdtp_out_stream_init - initialize an AMDTP output stream structure
- * @s: the AMDTP output stream to initialize
+ * amdtp_stream_init - initialize an AMDTP stream structure
+ * @s: the AMDTP stream to initialize
* @unit: the target of the stream
* @flags: the packet transmission method to use
*/
-int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
- enum cip_out_flags flags)
+int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
+ enum cip_flags flags)
{
s->unit = fw_unit_get(unit);
s->flags = flags;
@@ -51,19 +51,19 @@ int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
return 0;
}
-EXPORT_SYMBOL(amdtp_out_stream_init);
+EXPORT_SYMBOL(amdtp_stream_init);
/**
- * amdtp_out_stream_destroy - free stream resources
- * @s: the AMDTP output stream to destroy
+ * amdtp_stream_destroy - free stream resources
+ * @s: the AMDTP stream to destroy
*/
-void amdtp_out_stream_destroy(struct amdtp_out_stream *s)
+void amdtp_stream_destroy(struct amdtp_stream *s)
{
- WARN_ON(amdtp_out_stream_running(s));
+ WARN_ON(amdtp_stream_running(s));
mutex_destroy(&s->mutex);
fw_unit_put(s->unit);
}
-EXPORT_SYMBOL(amdtp_out_stream_destroy);
+EXPORT_SYMBOL(amdtp_stream_destroy);
const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = {
[CIP_SFC_32000] = 8,
@@ -77,8 +77,8 @@ const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = {
EXPORT_SYMBOL(amdtp_syt_intervals);
/**
- * amdtp_out_stream_set_parameters - set stream parameters
- * @s: the AMDTP output stream to configure
+ * amdtp_stream_set_parameters - set stream parameters
+ * @s: the AMDTP stream to configure
* @rate: the sample rate
* @pcm_channels: the number of PCM samples in each data block, to be encoded
* as AM824 multi-bit linear audio
@@ -87,10 +87,10 @@ EXPORT_SYMBOL(amdtp_syt_intervals);
* The parameters must be set before the stream is started, and must not be
* changed while the stream is running.
*/
-void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,
- unsigned int rate,
- unsigned int pcm_channels,
- unsigned int midi_ports)
+void amdtp_stream_set_parameters(struct amdtp_stream *s,
+ unsigned int rate,
+ unsigned int pcm_channels,
+ unsigned int midi_ports)
{
static const unsigned int rates[] = {
[CIP_SFC_32000] = 32000,
@@ -103,7 +103,7 @@ void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,
};
unsigned int sfc;
- if (WARN_ON(amdtp_out_stream_running(s)))
+ if (WARN_ON(amdtp_stream_running(s)))
return;
for (sfc = 0; sfc < CIP_SFC_COUNT; ++sfc)
@@ -132,47 +132,47 @@ sfc_found:
/* additional buffering needed to adjust for no-data packets */
s->transfer_delay += TICKS_PER_SECOND * s->syt_interval / rate;
}
-EXPORT_SYMBOL(amdtp_out_stream_set_parameters);
+EXPORT_SYMBOL(amdtp_stream_set_parameters);
/**
- * amdtp_out_stream_get_max_payload - get the stream's packet size
- * @s: the AMDTP output stream
+ * amdtp_stream_get_max_payload - get the stream's packet size
+ * @s: the AMDTP stream
*
* This function must not be called before the stream has been configured
- * with amdtp_out_stream_set_parameters().
+ * with amdtp_stream_set_parameters().
*/
-unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s)
+unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s)
{
return 8 + s->syt_interval * s->data_block_quadlets * 4;
}
-EXPORT_SYMBOL(amdtp_out_stream_get_max_payload);
+EXPORT_SYMBOL(amdtp_stream_get_max_payload);
-static void amdtp_write_s16(struct amdtp_out_stream *s,
+static void amdtp_write_s16(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames);
-static void amdtp_write_s32(struct amdtp_out_stream *s,
+static void amdtp_write_s32(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames);
-static void amdtp_write_s16_dualwire(struct amdtp_out_stream *s,
+static void amdtp_write_s16_dualwire(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames);
-static void amdtp_write_s32_dualwire(struct amdtp_out_stream *s,
+static void amdtp_write_s32_dualwire(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames);
/**
- * amdtp_out_stream_set_pcm_format - set the PCM format
- * @s: the AMDTP output stream to configure
+ * amdtp_stream_set_pcm_format - set the PCM format
+ * @s: the AMDTP stream to configure
* @format: the format of the ALSA PCM device
*
* The sample format must be set after the other paramters (rate/PCM channels/
* MIDI) and before the stream is started, and must not be changed while the
* stream is running.
*/
-void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
- snd_pcm_format_t format)
+void amdtp_stream_set_pcm_format(struct amdtp_stream *s,
+ snd_pcm_format_t format)
{
- if (WARN_ON(amdtp_out_stream_running(s)))
+ if (WARN_ON(amdtp_stream_running(s)))
return;
switch (format) {
@@ -193,24 +193,24 @@ void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
break;
}
}
-EXPORT_SYMBOL(amdtp_out_stream_set_pcm_format);
+EXPORT_SYMBOL(amdtp_stream_set_pcm_format);
/**
- * amdtp_out_stream_pcm_prepare - prepare PCM device for running
- * @s: the AMDTP output stream
+ * amdtp_stream_pcm_prepare - prepare PCM device for running
+ * @s: the AMDTP stream
*
* This function should be called from the PCM device's .prepare callback.
*/
-void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s)
+void amdtp_stream_pcm_prepare(struct amdtp_stream *s)
{
tasklet_kill(&s->period_tasklet);
s->pcm_buffer_pointer = 0;
s->pcm_period_pointer = 0;
s->pointer_flush = true;
}
-EXPORT_SYMBOL(amdtp_out_stream_pcm_prepare);
+EXPORT_SYMBOL(amdtp_stream_pcm_prepare);
-static unsigned int calculate_data_blocks(struct amdtp_out_stream *s)
+static unsigned int calculate_data_blocks(struct amdtp_stream *s)
{
unsigned int phase, data_blocks;
@@ -243,7 +243,7 @@ static unsigned int calculate_data_blocks(struct amdtp_out_stream *s)
return data_blocks;
}
-static unsigned int calculate_syt(struct amdtp_out_stream *s,
+static unsigned int calculate_syt(struct amdtp_stream *s,
unsigned int cycle)
{
unsigned int syt_offset, phase, index, syt;
@@ -286,7 +286,7 @@ static unsigned int calculate_syt(struct amdtp_out_stream *s,
}
}
-static void amdtp_write_s32(struct amdtp_out_stream *s,
+static void amdtp_write_s32(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames)
{
@@ -312,7 +312,7 @@ static void amdtp_write_s32(struct amdtp_out_stream *s,
}
}
-static void amdtp_write_s16(struct amdtp_out_stream *s,
+static void amdtp_write_s16(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames)
{
@@ -338,7 +338,7 @@ static void amdtp_write_s16(struct amdtp_out_stream *s,
}
}
-static void amdtp_write_s32_dualwire(struct amdtp_out_stream *s,
+static void amdtp_write_s32_dualwire(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames)
{
@@ -369,7 +369,7 @@ static void amdtp_write_s32_dualwire(struct amdtp_out_stream *s,
}
}
-static void amdtp_write_s16_dualwire(struct amdtp_out_stream *s,
+static void amdtp_write_s16_dualwire(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames)
{
@@ -400,7 +400,7 @@ static void amdtp_write_s16_dualwire(struct amdtp_out_stream *s,
}
}
-static void amdtp_fill_pcm_silence(struct amdtp_out_stream *s,
+static void amdtp_fill_pcm_silence(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
unsigned int i, c;
@@ -412,7 +412,7 @@ static void amdtp_fill_pcm_silence(struct amdtp_out_stream *s,
}
}
-static void amdtp_fill_midi(struct amdtp_out_stream *s,
+static void amdtp_fill_midi(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
unsigned int i;
@@ -422,7 +422,7 @@ static void amdtp_fill_midi(struct amdtp_out_stream *s,
cpu_to_be32(0x80000000);
}
-static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
+static void queue_out_packet(struct amdtp_stream *s, unsigned int cycle)
{
__be32 *buffer;
unsigned int index, data_blocks, syt, ptr;
@@ -473,7 +473,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
if (err < 0) {
dev_err(&s->unit->device, "queueing error: %d\n", err);
s->packet_index = -1;
- amdtp_out_stream_pcm_abort(s);
+ amdtp_stream_pcm_abort(s);
return;
}
@@ -501,7 +501,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
static void pcm_period_tasklet(unsigned long data)
{
- struct amdtp_out_stream *s = (void *)data;
+ struct amdtp_stream *s = (void *)data;
struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
if (pcm)
@@ -509,9 +509,9 @@ static void pcm_period_tasklet(unsigned long data)
}
static void out_packet_callback(struct fw_iso_context *context, u32 cycle,
- size_t header_length, void *header, void *data)
+ size_t header_length, void *header, void *private_data)
{
- struct amdtp_out_stream *s = data;
+ struct amdtp_stream *s = private_data;
unsigned int i, packets = header_length / 4;
/*
@@ -526,7 +526,7 @@ static void out_packet_callback(struct fw_iso_context *context, u32 cycle,
fw_iso_context_queue_flush(s->context);
}
-static int queue_initial_skip_packets(struct amdtp_out_stream *s)
+static int queue_initial_skip_packets(struct amdtp_stream *s)
{
struct fw_iso_packet skip_packet = {
.skip = 1,
@@ -548,16 +548,16 @@ static int queue_initial_skip_packets(struct amdtp_out_stream *s)
}
/**
- * amdtp_out_stream_start - start sending packets
- * @s: the AMDTP output stream to start
+ * amdtp_stream_start - start transferring packets
+ * @s: the AMDTP stream to start
* @channel: the isochronous channel on the bus
* @speed: firewire speed code
*
* The stream cannot be started until it has been configured with
- * amdtp_out_stream_set_parameters() and amdtp_out_stream_set_pcm_format(),
- * and it must be started before any PCM or MIDI device can be started.
+ * amdtp_stream_set_parameters() and it must be started before any PCM or MIDI
+ * device can be started.
*/
-int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
+int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
{
static const struct {
unsigned int data_block;
@@ -575,7 +575,7 @@ int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
mutex_lock(&s->mutex);
- if (WARN_ON(amdtp_out_stream_running(s) ||
+ if (WARN_ON(amdtp_stream_running(s) ||
(!s->pcm_channels && !s->midi_ports))) {
err = -EBADFD;
goto err_unlock;
@@ -586,7 +586,7 @@ int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
s->last_syt_offset = TICKS_PER_CYCLE;
err = iso_packets_buffer_init(&s->buffer, s->unit, QUEUE_LENGTH,
- amdtp_out_stream_get_max_payload(s),
+ amdtp_stream_get_max_payload(s),
DMA_TO_DEVICE);
if (err < 0)
goto err_unlock;
@@ -599,11 +599,11 @@ int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
err = PTR_ERR(s->context);
if (err == -EBUSY)
dev_err(&s->unit->device,
- "no free output stream on this controller\n");
+ "no free stream on this controller\n");
goto err_buffer;
}
- amdtp_out_stream_update(s);
+ amdtp_stream_update(s);
s->packet_index = 0;
s->data_block_counter = 0;
@@ -629,15 +629,15 @@ err_unlock:
return err;
}
-EXPORT_SYMBOL(amdtp_out_stream_start);
+EXPORT_SYMBOL(amdtp_stream_start);
/**
- * amdtp_out_stream_pcm_pointer - get the PCM buffer position
- * @s: the AMDTP output stream that transports the PCM data
+ * amdtp_stream_pcm_pointer - get the PCM buffer position
+ * @s: the AMDTP stream that transports the PCM data
*
* Returns the current buffer position, in frames.
*/
-unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s)
+unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s)
{
/* this optimization is allowed to be racy */
if (s->pointer_flush)
@@ -647,31 +647,31 @@ unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s)
return ACCESS_ONCE(s->pcm_buffer_pointer);
}
-EXPORT_SYMBOL(amdtp_out_stream_pcm_pointer);
+EXPORT_SYMBOL(amdtp_stream_pcm_pointer);
/**
- * amdtp_out_stream_update - update the stream after a bus reset
- * @s: the AMDTP output stream
+ * amdtp_stream_update - update the stream after a bus reset
+ * @s: the AMDTP stream
*/
-void amdtp_out_stream_update(struct amdtp_out_stream *s)
+void amdtp_stream_update(struct amdtp_stream *s)
{
ACCESS_ONCE(s->source_node_id_field) =
(fw_parent_device(s->unit)->card->node_id & 0x3f) << 24;
}
-EXPORT_SYMBOL(amdtp_out_stream_update);
+EXPORT_SYMBOL(amdtp_stream_update);
/**
- * amdtp_out_stream_stop - stop sending packets
- * @s: the AMDTP output stream to stop
+ * amdtp_stream_stop - stop sending packets
+ * @s: the AMDTP stream to stop
*
* All PCM and MIDI devices of the stream must be stopped before the stream
* itself can be stopped.
*/
-void amdtp_out_stream_stop(struct amdtp_out_stream *s)
+void amdtp_stream_stop(struct amdtp_stream *s)
{
mutex_lock(&s->mutex);
- if (!amdtp_out_stream_running(s)) {
+ if (!amdtp_stream_running(s)) {
mutex_unlock(&s->mutex);
return;
}
@@ -684,16 +684,16 @@ void amdtp_out_stream_stop(struct amdtp_out_stream *s)
mutex_unlock(&s->mutex);
}
-EXPORT_SYMBOL(amdtp_out_stream_stop);
+EXPORT_SYMBOL(amdtp_stream_stop);
/**
- * amdtp_out_stream_pcm_abort - abort the running PCM device
+ * amdtp_stream_pcm_abort - abort the running PCM device
* @s: the AMDTP stream about to be stopped
*
* If the isochronous stream needs to be stopped asynchronously, call this
* function first to stop the PCM device.
*/
-void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s)
+void amdtp_stream_pcm_abort(struct amdtp_stream *s)
{
struct snd_pcm_substream *pcm;
@@ -705,4 +705,4 @@ void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s)
snd_pcm_stream_unlock_irq(pcm);
}
}
-EXPORT_SYMBOL(amdtp_out_stream_pcm_abort);
+EXPORT_SYMBOL(amdtp_stream_pcm_abort);
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 2746ecd..60028c7 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -8,7 +8,7 @@
#include "packets-buffer.h"
/**
- * enum cip_out_flags - describes details of the streaming protocol
+ * enum cip_flags - describes details of the streaming protocol
* @CIP_NONBLOCKING: In non-blocking mode, each packet contains
* sample_rate/8000 samples, with rounding up or down to adjust
* for clock skew and left-over fractional samples. This should
@@ -21,7 +21,7 @@
* two samples of a channel are stored consecutively in the packet.
* Requires blocking mode and SYT_INTERVAL-aligned PCM buffer size.
*/
-enum cip_out_flags {
+enum cip_flags {
CIP_NONBLOCKING = 0x00,
CIP_BLOCKING = 0x01,
CIP_HI_DUALWIRE = 0x02,
@@ -48,9 +48,9 @@ struct fw_unit;
struct fw_iso_context;
struct snd_pcm_substream;
-struct amdtp_out_stream {
+struct amdtp_stream {
struct fw_unit *unit;
- enum cip_out_flags flags;
+ enum cip_flags flags;
struct fw_iso_context *context;
struct mutex mutex;
@@ -59,7 +59,7 @@ struct amdtp_out_stream {
unsigned int data_block_quadlets;
unsigned int pcm_channels;
unsigned int midi_ports;
- void (*transfer_samples)(struct amdtp_out_stream *s,
+ void (*transfer_samples)(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames);
@@ -84,56 +84,62 @@ struct amdtp_out_stream {
bool pointer_flush;
};
-int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
- enum cip_out_flags flags);
-void amdtp_out_stream_destroy(struct amdtp_out_stream *s);
+int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
+ enum cip_flags flags);
+void amdtp_stream_destroy(struct amdtp_stream *s);
-void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,
- unsigned int rate,
- unsigned int pcm_channels,
- unsigned int midi_ports);
-unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s);
+void amdtp_stream_set_parameters(struct amdtp_stream *s,
+ unsigned int rate,
+ unsigned int pcm_channels,
+ unsigned int midi_ports);
+unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s);
-int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed);
-void amdtp_out_stream_update(struct amdtp_out_stream *s);
-void amdtp_out_stream_stop(struct amdtp_out_stream *s);
+int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed);
+void amdtp_stream_update(struct amdtp_stream *s);
+void amdtp_stream_stop(struct amdtp_stream *s);
-void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
- snd_pcm_format_t format);
-void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s);
-unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s);
-void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);
+void amdtp_stream_set_pcm_format(struct amdtp_stream *s,
+ snd_pcm_format_t format);
+void amdtp_stream_pcm_prepare(struct amdtp_stream *s);
+unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s);
+void amdtp_stream_pcm_abort(struct amdtp_stream *s);
extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
-static inline bool amdtp_out_stream_running(struct amdtp_out_stream *s)
+/**
+ * amdtp_stream_running - check stream is running or not
+ * @s: the AMDTP stream
+ *
+ * If this function returns true, the stream is running.
+ */
+static inline bool amdtp_stream_running(struct amdtp_stream *s)
{
return !IS_ERR(s->context);
}
/**
- * amdtp_out_streaming_error - check for streaming error
- * @s: the AMDTP output stream
+ * amdtp_streaming_error - check for streaming error
+ * @s: the AMDTP stream
*
* If this function returns true, the stream's packet queue has stopped due to
* an asynchronous error.
*/
-static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
+static inline bool amdtp_streaming_error(struct amdtp_stream *s)
{
return s->packet_index < 0;
}
/**
- * amdtp_out_stream_pcm_trigger - start/stop playback from a PCM device
- * @s: the AMDTP output stream
+ * amdtp_stream_pcm_trigger - start/stop playback from a PCM device
+ * @s: the AMDTP stream
* @pcm: the PCM device to be started, or %NULL to stop the current device
*
* Call this function on a running isochronous stream to enable the actual
* transmission of PCM data. This function should be called from the PCM
* device's .trigger callback.
*/
-static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,
- struct snd_pcm_substream *pcm)
+static inline void amdtp_stream_pcm_trigger(struct amdtp_stream *s,
+ struct snd_pcm_substream *pcm)
{
ACCESS_ONCE(s->pcm) = pcm;
}
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index c0aa649..88814cc 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -51,7 +51,7 @@ struct dice {
wait_queue_head_t hwdep_wait;
u32 notification_bits;
struct fw_iso_resources resources;
- struct amdtp_out_stream stream;
+ struct amdtp_stream stream;
};
MODULE_DESCRIPTION("DICE driver");
@@ -460,17 +460,17 @@ static int dice_stream_start_packets(struct dice *dice)
{
int err;
- if (amdtp_out_stream_running(&dice->stream))
+ if (amdtp_stream_running(&dice->stream))
return 0;
- err = amdtp_out_stream_start(&dice->stream, dice->resources.channel,
- fw_parent_device(dice->unit)->max_speed);
+ err = amdtp_stream_start(&dice->stream, dice->resources.channel,
+ fw_parent_device(dice->unit)->max_speed);
if (err < 0)
return err;
err = dice_enable_set(dice);
if (err < 0) {
- amdtp_out_stream_stop(&dice->stream);
+ amdtp_stream_stop(&dice->stream);
return err;
}
@@ -484,7 +484,7 @@ static int dice_stream_start(struct dice *dice)
if (!dice->resources.allocated) {
err = fw_iso_resources_allocate(&dice->resources,
- amdtp_out_stream_get_max_payload(&dice->stream),
+ amdtp_stream_get_max_payload(&dice->stream),
fw_parent_device(dice->unit)->max_speed);
if (err < 0)
goto error;
@@ -516,9 +516,9 @@ error:
static void dice_stream_stop_packets(struct dice *dice)
{
- if (amdtp_out_stream_running(&dice->stream)) {
+ if (amdtp_stream_running(&dice->stream)) {
dice_enable_clear(dice);
- amdtp_out_stream_stop(&dice->stream);
+ amdtp_stream_stop(&dice->stream);
}
}
@@ -581,12 +581,12 @@ static int dice_hw_params(struct snd_pcm_substream *substream,
return err;
mode = rate_index_to_mode(rate_index);
- amdtp_out_stream_set_parameters(&dice->stream,
- params_rate(hw_params),
- params_channels(hw_params),
- dice->rx_midi_ports[mode]);
- amdtp_out_stream_set_pcm_format(&dice->stream,
- params_format(hw_params));
+ amdtp_stream_set_parameters(&dice->stream,
+ params_rate(hw_params),
+ params_channels(hw_params),
+ dice->rx_midi_ports[mode]);
+ amdtp_stream_set_pcm_format(&dice->stream,
+ params_format(hw_params));
return 0;
}
@@ -609,7 +609,7 @@ static int dice_prepare(struct snd_pcm_substream *substream)
mutex_lock(&dice->mutex);
- if (amdtp_out_streaming_error(&dice->stream))
+ if (amdtp_streaming_error(&dice->stream))
dice_stream_stop_packets(dice);
err = dice_stream_start(dice);
@@ -620,7 +620,7 @@ static int dice_prepare(struct snd_pcm_substream *substream)
mutex_unlock(&dice->mutex);
- amdtp_out_stream_pcm_prepare(&dice->stream);
+ amdtp_stream_pcm_prepare(&dice->stream);
return 0;
}
@@ -640,7 +640,7 @@ static int dice_trigger(struct snd_pcm_substream *substream, int cmd)
default:
return -EINVAL;
}
- amdtp_out_stream_pcm_trigger(&dice->stream, pcm);
+ amdtp_stream_pcm_trigger(&dice->stream, pcm);
return 0;
}
@@ -649,7 +649,7 @@ static snd_pcm_uframes_t dice_pointer(struct snd_pcm_substream *substream)
{
struct dice *dice = substream->private_data;
- return amdtp_out_stream_pcm_pointer(&dice->stream);
+ return amdtp_stream_pcm_pointer(&dice->stream);
}
static int dice_create_pcm(struct dice *dice)
@@ -1104,7 +1104,7 @@ static void dice_card_free(struct snd_card *card)
{
struct dice *dice = card->private_data;
- amdtp_out_stream_destroy(&dice->stream);
+ amdtp_stream_destroy(&dice->stream);
fw_core_remove_address_handler(&dice->notification_handler);
mutex_destroy(&dice->mutex);
}
@@ -1360,8 +1360,8 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
goto err_owner;
dice->resources.channels_mask = 0x00000000ffffffffuLL;
- err = amdtp_out_stream_init(&dice->stream, unit,
- CIP_BLOCKING | CIP_HI_DUALWIRE);
+ err = amdtp_stream_init(&dice->stream, unit,
+ CIP_BLOCKING | CIP_HI_DUALWIRE);
if (err < 0)
goto err_resources;
@@ -1417,7 +1417,7 @@ static void dice_remove(struct fw_unit *unit)
{
struct dice *dice = dev_get_drvdata(&unit->device);
- amdtp_out_stream_pcm_abort(&dice->stream);
+ amdtp_stream_pcm_abort(&dice->stream);
snd_card_disconnect(dice->card);
@@ -1443,7 +1443,7 @@ static void dice_bus_reset(struct fw_unit *unit)
* to stop so that the application can restart them in an orderly
* manner.
*/
- amdtp_out_stream_pcm_abort(&dice->stream);
+ amdtp_stream_pcm_abort(&dice->stream);
mutex_lock(&dice->mutex);
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index cc8bc3a..fc11c0f 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -51,7 +51,8 @@ struct fwspk {
const struct device_info *device_info;
struct mutex mutex;
struct cmp_connection connection;
- struct amdtp_out_stream stream;
+ struct amdtp_stream stream;
+ bool stream_running;
bool mute;
s16 volume[6];
s16 volume_min;
@@ -187,8 +188,8 @@ static int fwspk_close(struct snd_pcm_substream *substream)
static void fwspk_stop_stream(struct fwspk *fwspk)
{
- if (amdtp_out_stream_running(&fwspk->stream)) {
- amdtp_out_stream_stop(&fwspk->stream);
+ if (fwspk->stream_running) {
+ amdtp_stream_stop(&fwspk->stream);
cmp_connection_break(&fwspk->connection);
}
}
@@ -244,13 +245,13 @@ static int fwspk_hw_params(struct snd_pcm_substream *substream,
if (err < 0)
goto error;
- amdtp_out_stream_set_parameters(&fwspk->stream,
- params_rate(hw_params),
- params_channels(hw_params),
- 0);
+ amdtp_stream_set_parameters(&fwspk->stream,
+ params_rate(hw_params),
+ params_channels(hw_params),
+ 0);
- amdtp_out_stream_set_pcm_format(&fwspk->stream,
- params_format(hw_params));
+ amdtp_stream_set_pcm_format(&fwspk->stream,
+ params_format(hw_params));
err = fwspk_set_rate(fwspk, fwspk->stream.sfc);
if (err < 0)
@@ -282,25 +283,25 @@ static int fwspk_prepare(struct snd_pcm_substream *substream)
mutex_lock(&fwspk->mutex);
- if (amdtp_out_streaming_error(&fwspk->stream))
+ if (amdtp_streaming_error(&fwspk->stream))
fwspk_stop_stream(fwspk);
- if (!amdtp_out_stream_running(&fwspk->stream)) {
+ if (!amdtp_stream_running(&fwspk->stream)) {
err = cmp_connection_establish(&fwspk->connection,
- amdtp_out_stream_get_max_payload(&fwspk->stream));
+ amdtp_stream_get_max_payload(&fwspk->stream));
if (err < 0)
goto err_mutex;
- err = amdtp_out_stream_start(&fwspk->stream,
- fwspk->connection.resources.channel,
- fwspk->connection.speed);
+ err = amdtp_stream_start(&fwspk->stream,
+ fwspk->connection.resources.channel,
+ fwspk->connection.speed);
if (err < 0)
goto err_connection;
}
mutex_unlock(&fwspk->mutex);
- amdtp_out_stream_pcm_prepare(&fwspk->stream);
+ amdtp_stream_pcm_prepare(&fwspk->stream);
return 0;
@@ -327,7 +328,7 @@ static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
default:
return -EINVAL;
}
- amdtp_out_stream_pcm_trigger(&fwspk->stream, pcm);
+ amdtp_stream_pcm_trigger(&fwspk->stream, pcm);
return 0;
}
@@ -335,7 +336,7 @@ static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
{
struct fwspk *fwspk = substream->private_data;
- return amdtp_out_stream_pcm_pointer(&fwspk->stream);
+ return amdtp_stream_pcm_pointer(&fwspk->stream);
}
static int fwspk_create_pcm(struct fwspk *fwspk)
@@ -653,7 +654,7 @@ static void fwspk_card_free(struct snd_card *card)
{
struct fwspk *fwspk = card->private_data;
- amdtp_out_stream_destroy(&fwspk->stream);
+ amdtp_stream_destroy(&fwspk->stream);
cmp_connection_destroy(&fwspk->connection);
fw_unit_put(fwspk->unit);
mutex_destroy(&fwspk->mutex);
@@ -683,7 +684,7 @@ static int fwspk_probe(struct fw_unit *unit,
if (err < 0)
goto err_unit;
- err = amdtp_out_stream_init(&fwspk->stream, unit, CIP_NONBLOCKING);
+ err = amdtp_stream_init(&fwspk->stream, unit, CIP_NONBLOCKING);
if (err < 0)
goto err_connection;
@@ -733,21 +734,21 @@ static void fwspk_bus_reset(struct fw_unit *unit)
fcp_bus_reset(fwspk->unit);
if (cmp_connection_update(&fwspk->connection) < 0) {
- amdtp_out_stream_pcm_abort(&fwspk->stream);
+ amdtp_stream_pcm_abort(&fwspk->stream);
mutex_lock(&fwspk->mutex);
fwspk_stop_stream(fwspk);
mutex_unlock(&fwspk->mutex);
return;
}
- amdtp_out_stream_update(&fwspk->stream);
+ amdtp_stream_update(&fwspk->stream);
}
static void fwspk_remove(struct fw_unit *unit)
{
struct fwspk *fwspk = dev_get_drvdata(&unit->device);
- amdtp_out_stream_pcm_abort(&fwspk->stream);
+ amdtp_stream_pcm_abort(&fwspk->stream);
snd_card_disconnect(fwspk->card);
mutex_lock(&fwspk->mutex);
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 02/38] firewire-lib: Add macros instead of fixed value for AMDTP
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 01/38] firewire-lib: Rename functions, structure, member for AMDTP Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 03/38] firewire-lib: Add 'direction' member to 'amdtp_stream' structure Takashi Sakamoto
` (36 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This patch adds some macros instead of fixed value for AMDTP in IEC 61883-6.
These macros will also be used by followed patches.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 30 +++++++++++++++++++++++-------
1 file changed, 23 insertions(+), 7 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 16fe858..38013f9 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -20,12 +20,28 @@
#define TRANSFER_DELAY_TICKS 0x2e00 /* 479.17 µs */
+/* isochronous header parameters */
+#define ISO_DATA_LENGTH_SHIFT 16
#define TAG_CIP 1
+/* common isochronous packet header parameters */
#define CIP_EOH (1u << 31)
+#define CIP_EOH_MASK 0x80000000
#define CIP_FMT_AM (0x10 << 24)
-#define AMDTP_FDF_AM824 (0 << 19)
-#define AMDTP_FDF_SFC_SHIFT 16
+#define CIP_FMT_MASK 0x3f000000
+#define CIP_SYT_MASK 0x0000ffff
+#define CIP_SYT_NO_INFO 0xffff
+#define CIP_FDF_MASK 0x00ff0000
+#define CIP_FDF_SFC_SHIFT 16
+
+/*
+ * Audio and Music transfer protocol specific parameters
+ * only "Clock-based rate control mode" is supported
+ */
+#define AMDTP_FDF_AM824 (0 << (CIP_FDF_SFC_SHIFT + 3))
+#define AMDTP_DBS_MASK 0x00ff0000
+#define AMDTP_DBS_SHIFT 16
+#define AMDTP_DBC_MASK 0x000000ff
/* TODO: make these configurable */
#define INTERRUPT_INTERVAL 16
@@ -280,9 +296,9 @@ static unsigned int calculate_syt(struct amdtp_stream *s,
syt = (cycle + syt_offset / TICKS_PER_CYCLE) << 12;
syt += syt_offset % TICKS_PER_CYCLE;
- return syt & 0xffff;
+ return syt & CIP_SYT_MASK;
} else {
- return 0xffff; /* no info */
+ return CIP_SYT_NO_INFO;
}
}
@@ -438,17 +454,17 @@ static void queue_out_packet(struct amdtp_stream *s, unsigned int cycle)
syt = calculate_syt(s, cycle);
if (!(s->flags & CIP_BLOCKING))
data_blocks = calculate_data_blocks(s);
- else if (syt != 0xffff)
+ else if (syt != CIP_SYT_NO_INFO)
data_blocks = s->syt_interval;
else
data_blocks = 0;
buffer = s->buffer.packets[index].buffer;
buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) |
- (s->data_block_quadlets << 16) |
+ (s->data_block_quadlets << AMDTP_DBS_SHIFT) |
s->data_block_counter);
buffer[1] = cpu_to_be32(CIP_EOH | CIP_FMT_AM | AMDTP_FDF_AM824 |
- (s->sfc << AMDTP_FDF_SFC_SHIFT) | syt);
+ (s->sfc << CIP_FDF_SFC_SHIFT) | syt);
buffer += 2;
pcm = ACCESS_ONCE(s->pcm);
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
_______________________________________________
mailing list linux1394-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux1394-devel
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 03/38] firewire-lib: Add 'direction' member to 'amdtp_stream' structure
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 01/38] firewire-lib: Rename functions, structure, member for AMDTP Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 02/38] firewire-lib: Add macros instead of fixed value " Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 04/38] firewire-lib: Split some codes into functions to reuse for both streams Takashi Sakamoto
` (35 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This patch adds 'direction' member to amdtp_stream structure to indicate its
direction. This patch also adds 'direction' argument to amdtp_stream_init()
function to determine its direction.
The amdtp_stream_init() function is exported and used by firewire-speakers and
dice so this patch also affects them.
This patch just add them. Actual implementation will be done by followed
patches.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 4 +++-
sound/firewire/amdtp.h | 7 +++++++
sound/firewire/dice.c | 2 +-
sound/firewire/speakers.c | 3 ++-
4 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 38013f9..95c5a15 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -53,12 +53,14 @@ static void pcm_period_tasklet(unsigned long data);
* amdtp_stream_init - initialize an AMDTP stream structure
* @s: the AMDTP stream to initialize
* @unit: the target of the stream
+ * @dir: the direction of stream
* @flags: the packet transmission method to use
*/
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
- enum cip_flags flags)
+ enum amdtp_stream_direction dir, enum cip_flags flags)
{
s->unit = fw_unit_get(unit);
+ s->direction = dir;
s->flags = flags;
s->context = ERR_PTR(-1);
mutex_init(&s->mutex);
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 60028c7..019134e 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -48,9 +48,15 @@ struct fw_unit;
struct fw_iso_context;
struct snd_pcm_substream;
+enum amdtp_stream_direction {
+ AMDTP_OUT_STREAM = 0,
+ AMDTP_IN_STREAM
+};
+
struct amdtp_stream {
struct fw_unit *unit;
enum cip_flags flags;
+ enum amdtp_stream_direction direction;
struct fw_iso_context *context;
struct mutex mutex;
@@ -85,6 +91,7 @@ struct amdtp_stream {
};
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
+ enum amdtp_stream_direction dir,
enum cip_flags flags);
void amdtp_stream_destroy(struct amdtp_stream *s);
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 88814cc..b4d50b0 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -1360,7 +1360,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
goto err_owner;
dice->resources.channels_mask = 0x00000000ffffffffuLL;
- err = amdtp_stream_init(&dice->stream, unit,
+ err = amdtp_stream_init(&dice->stream, unit, AMDTP_OUT_STREAM,
CIP_BLOCKING | CIP_HI_DUALWIRE);
if (err < 0)
goto err_resources;
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index fc11c0f..28147ef 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -684,7 +684,8 @@ static int fwspk_probe(struct fw_unit *unit,
if (err < 0)
goto err_unit;
- err = amdtp_stream_init(&fwspk->stream, unit, CIP_NONBLOCKING);
+ err = amdtp_stream_init(&fwspk->stream, unit, AMDTP_OUT_STREAM,
+ CIP_NONBLOCKING);
if (err < 0)
goto err_connection;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 04/38] firewire-lib: Split some codes into functions to reuse for both streams
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (2 preceding siblings ...)
2013-12-20 13:13 ` [PATCH 03/38] firewire-lib: Add 'direction' member to 'amdtp_stream' structure Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 05/38] firewire-lib: Add support for AMDTP in-stream and PCM capture Takashi Sakamoto
` (34 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Some codes can be reused to handle in stream. This commit adds new functions.
This commit also renames some functions to keep naming consistency.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 156 ++++++++++++++++++++++++++-----------------------
1 file changed, 82 insertions(+), 74 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 95c5a15..ca79cb4 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -47,6 +47,8 @@
#define INTERRUPT_INTERVAL 16
#define QUEUE_LENGTH 48
+#define OUT_PACKET_HEADER_SIZE 0
+
static void pcm_period_tasklet(unsigned long data);
/**
@@ -440,13 +442,74 @@ static void amdtp_fill_midi(struct amdtp_stream *s,
cpu_to_be32(0x80000000);
}
-static void queue_out_packet(struct amdtp_stream *s, unsigned int cycle)
+static void update_pcm_pointers(struct amdtp_stream *s,
+ struct snd_pcm_substream *pcm,
+ unsigned int frames)
+{ unsigned int ptr;
+
+ if (s->dual_wire)
+ frames *= 2;
+
+ ptr = s->pcm_buffer_pointer + frames;
+ if (ptr >= pcm->runtime->buffer_size)
+ ptr -= pcm->runtime->buffer_size;
+ ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
+
+ s->pcm_period_pointer += frames;
+ if (s->pcm_period_pointer >= pcm->runtime->period_size) {
+ s->pcm_period_pointer -= pcm->runtime->period_size;
+ s->pointer_flush = false;
+ tasklet_hi_schedule(&s->period_tasklet);
+ }
+}
+
+static void pcm_period_tasklet(unsigned long data)
+{
+ struct amdtp_stream *s = (void *)data;
+ struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
+
+ if (pcm)
+ snd_pcm_period_elapsed(pcm);
+}
+
+static int queue_packet(struct amdtp_stream *s,
+ unsigned int header_length,
+ unsigned int payload_length, bool skip)
+{
+ struct fw_iso_packet p = {0};
+ int err;
+
+ p.interrupt = IS_ALIGNED(s->packet_index + 1, INTERRUPT_INTERVAL);
+ p.tag = TAG_CIP;
+ p.header_length = header_length;
+ p.payload_length = (!skip) ? payload_length : 0;
+ p.skip = skip;
+ err = fw_iso_context_queue(s->context, &p, &s->buffer.iso_buffer,
+ s->buffer.packets[s->packet_index].offset);
+ if (err < 0) {
+ dev_err(&s->unit->device, "queueing error: %d\n", err);
+ s->packet_index = -1;
+ goto end;
+ }
+
+ if (++s->packet_index >= QUEUE_LENGTH)
+ s->packet_index = 0;
+end:
+ return err;
+}
+
+static inline int queue_out_packet(struct amdtp_stream *s,
+ unsigned int payload_length, bool skip)
+{
+ return queue_packet(s, OUT_PACKET_HEADER_SIZE,
+ payload_length, skip);
+}
+
+static void handle_out_packet(struct amdtp_stream *s, unsigned int cycle)
{
__be32 *buffer;
- unsigned int index, data_blocks, syt, ptr;
+ unsigned int index, data_blocks, syt, payload_length;
struct snd_pcm_substream *pcm;
- struct fw_iso_packet packet;
- int err;
if (s->packet_index < 0)
return;
@@ -479,55 +542,19 @@ static void queue_out_packet(struct amdtp_stream *s, unsigned int cycle)
s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff;
- packet.payload_length = 8 + data_blocks * 4 * s->data_block_quadlets;
- packet.interrupt = IS_ALIGNED(index + 1, INTERRUPT_INTERVAL);
- packet.skip = 0;
- packet.tag = TAG_CIP;
- packet.sy = 0;
- packet.header_length = 0;
-
- err = fw_iso_context_queue(s->context, &packet, &s->buffer.iso_buffer,
- s->buffer.packets[index].offset);
- if (err < 0) {
- dev_err(&s->unit->device, "queueing error: %d\n", err);
- s->packet_index = -1;
+ payload_length = 8 + data_blocks * 4 * s->data_block_quadlets;
+ if (queue_out_packet(s, payload_length, false) < 0) {
amdtp_stream_pcm_abort(s);
return;
}
- if (++index >= QUEUE_LENGTH)
- index = 0;
- s->packet_index = index;
-
- if (pcm) {
- if (s->dual_wire)
- data_blocks *= 2;
-
- ptr = s->pcm_buffer_pointer + data_blocks;
- if (ptr >= pcm->runtime->buffer_size)
- ptr -= pcm->runtime->buffer_size;
- ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
-
- s->pcm_period_pointer += data_blocks;
- if (s->pcm_period_pointer >= pcm->runtime->period_size) {
- s->pcm_period_pointer -= pcm->runtime->period_size;
- s->pointer_flush = false;
- tasklet_hi_schedule(&s->period_tasklet);
- }
- }
-}
-
-static void pcm_period_tasklet(unsigned long data)
-{
- struct amdtp_stream *s = (void *)data;
- struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
-
if (pcm)
- snd_pcm_period_elapsed(pcm);
+ update_pcm_pointers(s, pcm, data_blocks);
}
-static void out_packet_callback(struct fw_iso_context *context, u32 cycle,
- size_t header_length, void *header, void *private_data)
+static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
+ size_t header_length, void *header,
+ void *private_data)
{
struct amdtp_stream *s = private_data;
unsigned int i, packets = header_length / 4;
@@ -540,31 +567,10 @@ static void out_packet_callback(struct fw_iso_context *context, u32 cycle,
cycle += QUEUE_LENGTH - packets;
for (i = 0; i < packets; ++i)
- queue_out_packet(s, ++cycle);
+ handle_out_packet(s, ++cycle);
fw_iso_context_queue_flush(s->context);
}
-static int queue_initial_skip_packets(struct amdtp_stream *s)
-{
- struct fw_iso_packet skip_packet = {
- .skip = 1,
- };
- unsigned int i;
- int err;
-
- for (i = 0; i < QUEUE_LENGTH; ++i) {
- skip_packet.interrupt = IS_ALIGNED(s->packet_index + 1,
- INTERRUPT_INTERVAL);
- err = fw_iso_context_queue(s->context, &skip_packet, NULL, 0);
- if (err < 0)
- return err;
- if (++s->packet_index >= QUEUE_LENGTH)
- s->packet_index = 0;
- }
-
- return 0;
-}
-
/**
* amdtp_stream_start - start transferring packets
* @s: the AMDTP stream to start
@@ -594,7 +600,7 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
mutex_lock(&s->mutex);
if (WARN_ON(amdtp_stream_running(s) ||
- (!s->pcm_channels && !s->midi_ports))) {
+ (s->data_block_quadlets < 1))) {
err = -EBADFD;
goto err_unlock;
}
@@ -612,7 +618,7 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
s->context = fw_iso_context_create(fw_parent_device(s->unit)->card,
FW_ISO_CONTEXT_TRANSMIT,
channel, speed, 0,
- out_packet_callback, s);
+ out_stream_callback, s);
if (IS_ERR(s->context)) {
err = PTR_ERR(s->context);
if (err == -EBUSY)
@@ -624,11 +630,13 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
amdtp_stream_update(s);
s->packet_index = 0;
- s->data_block_counter = 0;
- err = queue_initial_skip_packets(s);
- if (err < 0)
- goto err_context;
+ do {
+ err = queue_out_packet(s, 0, true);
+ if (err < 0)
+ goto err_context;
+ } while (s->packet_index > 0);
+ s->data_block_counter = 0;
err = fw_iso_context_start(s->context, -1, 0, 0);
if (err < 0)
goto err_context;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 05/38] firewire-lib: Add support for AMDTP in-stream and PCM capture
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (3 preceding siblings ...)
2013-12-20 13:13 ` [PATCH 04/38] firewire-lib: Split some codes into functions to reuse for both streams Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 06/38] firewire-lib: Add support for MIDI capture/playback Takashi Sakamoto
` (33 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
For capturing PCM, this commit adds the functionality to handle in-stream.
This is also applied for dual-wire mode.
Currently, capturing 32bit samples are supported.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 218 +++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 201 insertions(+), 17 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index ca79cb4..4ebfd67 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -39,6 +39,7 @@
* only "Clock-based rate control mode" is supported
*/
#define AMDTP_FDF_AM824 (0 << (CIP_FDF_SFC_SHIFT + 3))
+#define AMDTP_FDF_NO_DATA 0xff
#define AMDTP_DBS_MASK 0x00ff0000
#define AMDTP_DBS_SHIFT 16
#define AMDTP_DBC_MASK 0x000000ff
@@ -47,6 +48,7 @@
#define INTERRUPT_INTERVAL 16
#define QUEUE_LENGTH 48
+#define IN_PACKET_HEADER_SIZE 4
#define OUT_PACKET_HEADER_SIZE 0
static void pcm_period_tasklet(unsigned long data);
@@ -179,6 +181,12 @@ static void amdtp_write_s16_dualwire(struct amdtp_stream *s,
static void amdtp_write_s32_dualwire(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames);
+static void amdtp_read_s32(struct amdtp_stream *s,
+ struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames);
+static void amdtp_read_s32_dualwire(struct amdtp_stream *s,
+ struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames);
/**
* amdtp_stream_set_pcm_format - set the PCM format
@@ -200,16 +208,26 @@ void amdtp_stream_set_pcm_format(struct amdtp_stream *s,
WARN_ON(1);
/* fall through */
case SNDRV_PCM_FORMAT_S16:
- if (s->dual_wire)
- s->transfer_samples = amdtp_write_s16_dualwire;
- else
- s->transfer_samples = amdtp_write_s16;
- break;
+ if (s->direction == AMDTP_OUT_STREAM) {
+ if (s->dual_wire)
+ s->transfer_samples = amdtp_write_s16_dualwire;
+ else
+ s->transfer_samples = amdtp_write_s16;
+ break;
+ }
+ WARN_ON(1);
+ /* fall through */
case SNDRV_PCM_FORMAT_S32:
- if (s->dual_wire)
- s->transfer_samples = amdtp_write_s32_dualwire;
- else
- s->transfer_samples = amdtp_write_s32;
+ if (s->direction == AMDTP_OUT_STREAM) {
+ if (s->dual_wire)
+ s->transfer_samples = amdtp_write_s32_dualwire;
+ else
+ s->transfer_samples = amdtp_write_s32;
+ } else if (s->dual_wire) {
+ s->transfer_samples = amdtp_read_s32_dualwire;
+ } else {
+ s->transfer_samples = amdtp_read_s32;
+ }
break;
}
}
@@ -420,6 +438,58 @@ static void amdtp_write_s16_dualwire(struct amdtp_stream *s,
}
}
+static void amdtp_read_s32(struct amdtp_stream *s,
+ struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames)
+{
+ struct snd_pcm_runtime *runtime = pcm->runtime;
+ unsigned int remaining_frames, i, c;
+ u32 *dst;
+
+ dst = (void *)runtime->dma_area +
+ frames_to_bytes(runtime, s->pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+
+ for (i = 0; i < frames; ++i) {
+ for (c = 0; c < s->pcm_channels; ++c) {
+ *dst = be32_to_cpu(buffer[c]) << 8;
+ dst++;
+ }
+ buffer += s->data_block_quadlets;
+ if (--remaining_frames == 0)
+ dst = (void *)runtime->dma_area;
+ }
+}
+
+static void amdtp_read_s32_dualwire(struct amdtp_stream *s,
+ struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames)
+{
+ struct snd_pcm_runtime *runtime = pcm->runtime;
+ unsigned int channels, remaining_frames, i, c;
+ u32 *dst;
+
+ dst = (void *)runtime->dma_area +
+ frames_to_bytes(runtime, s->pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ channels = s->pcm_channels / 2;
+
+ for (i = 0; i < frames; ++i) {
+ for (c = 0; c < channels; ++c) {
+ *dst = be32_to_cpu(buffer[c * 2]) << 8;
+ dst++;
+ }
+ buffer += 1;
+ for (c = 0; c < channels; ++c) {
+ *dst = be32_to_cpu(buffer[c * 2]) << 8;
+ dst++;
+ }
+ buffer += s->data_block_quadlets - 1;
+ if (--remaining_frames == 0)
+ dst = (void *)runtime->dma_area;
+ }
+}
+
static void amdtp_fill_pcm_silence(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
@@ -505,6 +575,12 @@ static inline int queue_out_packet(struct amdtp_stream *s,
payload_length, skip);
}
+static inline int queue_in_packet(struct amdtp_stream *s)
+{
+ return queue_packet(s, IN_PACKET_HEADER_SIZE,
+ amdtp_stream_get_max_payload(s), false);
+}
+
static void handle_out_packet(struct amdtp_stream *s, unsigned int cycle)
{
__be32 *buffer;
@@ -552,6 +628,67 @@ static void handle_out_packet(struct amdtp_stream *s, unsigned int cycle)
update_pcm_pointers(s, pcm, data_blocks);
}
+static void handle_in_packet(struct amdtp_stream *s,
+ unsigned int payload_quadlets,
+ __be32 *buffer)
+{
+ u32 cip_header[2];
+ unsigned int data_block_quadlets, data_blocks, data_block_counter;
+ struct snd_pcm_substream *pcm;
+
+ cip_header[0] = be32_to_cpu(buffer[0]);
+ cip_header[1] = be32_to_cpu(buffer[1]);
+
+ /*
+ * This module supports 'Two-quadlet CIP header with SYT field'.
+ * For convinience, also check FMT field is AM824 or not.
+ */
+ if (((cip_header[0] & CIP_EOH_MASK) == CIP_EOH) ||
+ ((cip_header[1] & CIP_EOH_MASK) != CIP_EOH) ||
+ ((cip_header[1] & CIP_FMT_MASK) != CIP_FMT_AM)) {
+ dev_info_ratelimited(&s->unit->device,
+ "Invalid CIP header for AMDTP: %08X:%08X\n",
+ cip_header[0], cip_header[1]);
+ return;
+ }
+
+ /* ignore empty CIP packet or NO-DATA AMDTP packet */
+ if ((payload_quadlets < 3) ||
+ (((cip_header[1] & CIP_FDF_MASK) >> CIP_FDF_SFC_SHIFT) ==
+ AMDTP_FDF_NO_DATA))
+ return;
+
+ data_block_quadlets =
+ (cip_header[1] & AMDTP_DBS_MASK) >> AMDTP_DBS_SHIFT;
+ /* avoid division by zero */
+ if (data_block_quadlets == 0) {
+ dev_info_ratelimited(&s->unit->device,
+ "Detect invalid value in dbs field: %08X\n",
+ data_block_quadlets);
+ return;
+ }
+
+ data_blocks = (payload_quadlets - 2) / data_block_quadlets;
+ data_block_counter = cip_header[1] & AMDTP_DBC_MASK;
+
+ /* check packet continuity */
+ s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff;
+ if (s->data_block_counter != data_block_counter) {
+ dev_info_ratelimited(&s->unit->device,
+ "Detect uncontinuity of CIP packets\n");
+ s->data_block_counter = data_block_counter;
+ return;
+ }
+
+ buffer += 2;
+
+ pcm = ACCESS_ONCE(s->pcm);
+ if (pcm) {
+ s->transfer_samples(s, pcm, buffer, data_blocks);
+ update_pcm_pointers(s, pcm, data_blocks);
+ }
+}
+
static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
size_t header_length, void *header,
void *private_data)
@@ -571,6 +708,35 @@ static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
fw_iso_context_queue_flush(s->context);
}
+static void in_stream_callback(struct fw_iso_context *context, u32 cycle,
+ size_t header_length, void *header,
+ void *private_data)
+{
+ struct amdtp_stream *s = private_data;
+ unsigned int p, packets, data_quadlets;
+ __be32 *buffer, *headers = header;
+
+ /* The number of packets in buffer */
+ packets = header_length / IN_PACKET_HEADER_SIZE;
+
+ for (p = 0; p < packets; p++) {
+ buffer = s->buffer.packets[s->packet_index].buffer;
+
+ /* The number of quadlets in this packet */
+ data_quadlets =
+ (be32_to_cpu(headers[p]) >> ISO_DATA_LENGTH_SHIFT) / 4;
+ /* handle each packet data */
+ handle_in_packet(s, data_quadlets, buffer);
+
+ if (queue_in_packet(s) < 0) {
+ amdtp_stream_pcm_abort(s);
+ return;
+ }
+ }
+
+ fw_iso_context_queue_flush(s->context);
+}
+
/**
* amdtp_stream_start - start transferring packets
* @s: the AMDTP stream to start
@@ -595,7 +761,10 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
[CIP_SFC_88200] = { 0, 67 },
[CIP_SFC_176400] = { 0, 67 },
};
- int err;
+ unsigned int header_size;
+ enum dma_data_direction dir;
+ fw_iso_callback_t cb;
+ int type, err;
mutex_lock(&s->mutex);
@@ -609,16 +778,26 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
s->syt_offset_state = initial_state[s->sfc].syt_offset;
s->last_syt_offset = TICKS_PER_CYCLE;
+ /* initialize packet buffer */
+ if (s->direction == AMDTP_IN_STREAM) {
+ dir = DMA_FROM_DEVICE;
+ type = FW_ISO_CONTEXT_RECEIVE;
+ header_size = IN_PACKET_HEADER_SIZE;
+ cb = in_stream_callback;
+ } else {
+ dir = DMA_TO_DEVICE;
+ type = FW_ISO_CONTEXT_TRANSMIT;
+ header_size = OUT_PACKET_HEADER_SIZE;
+ cb = out_stream_callback;
+ }
err = iso_packets_buffer_init(&s->buffer, s->unit, QUEUE_LENGTH,
- amdtp_stream_get_max_payload(s),
- DMA_TO_DEVICE);
+ amdtp_stream_get_max_payload(s), dir);
if (err < 0)
goto err_unlock;
s->context = fw_iso_context_create(fw_parent_device(s->unit)->card,
- FW_ISO_CONTEXT_TRANSMIT,
- channel, speed, 0,
- out_stream_callback, s);
+ type, channel, speed, header_size,
+ cb, s);
if (IS_ERR(s->context)) {
err = PTR_ERR(s->context);
if (err == -EBUSY)
@@ -631,13 +810,18 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
s->packet_index = 0;
do {
- err = queue_out_packet(s, 0, true);
+ if (s->direction == AMDTP_IN_STREAM)
+ err = queue_in_packet(s);
+ else
+ err = queue_out_packet(s, 0, true);
if (err < 0)
goto err_context;
} while (s->packet_index > 0);
+ /* NOTE: TAG1 matches CIP. This just affects in stream */
s->data_block_counter = 0;
- err = fw_iso_context_start(s->context, -1, 0, 0);
+ err = fw_iso_context_start(s->context, -1, 0,
+ FW_ISO_CONTEXT_MATCH_TAG1);
if (err < 0)
goto err_context;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 06/38] firewire-lib: Add support for MIDI capture/playback
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (4 preceding siblings ...)
2013-12-20 13:13 ` [PATCH 05/38] firewire-lib: Add support for AMDTP in-stream and PCM capture Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 07/38] firewire-lib: Give syt value as parameter to handle_out_packet() Takashi Sakamoto
` (32 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
For capturing/playbacking MIDI messages, this commit adds one MIDI conformant
data channel. This channel supports 8 MPX-MIDI data streams then maximum number
of supported MIDI ports is limited by 8.
And this commit allows to set PCM format even if AMDTP stream already starts.
I suppose the case that PCM data starts to be joined into AMDTP streams after
AMDTP stream is already started for MIDI. To distinguish whether PCM or MIDI
functionality starts AMDTP stream, this commit adds amdtp_stream_pcm_running()
and amdtp_stream_midi_running(). I think this is better than reference-counter.
IEC 61883-6 refers to AMEI/MMA RP-027 for implementation of MIDI conformant
data. In the specification, 'MIDI1.0-2x/3x-SPEED' mode are described with
'negotiation procedure' and 'encapsulation details'. But there is no
specifications to define them. This module implement 'MIDI1.0-1x-SPEED' mode.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 79 +++++++++++++++++++++++++++++++++++++++++++-------
sound/firewire/amdtp.h | 45 ++++++++++++++++++++++++++++
2 files changed, 114 insertions(+), 10 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 4ebfd67..7ed8d49 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <sound/pcm.h>
+#include <sound/rawmidi.h>
#include "amdtp.h"
#define TICKS_PER_CYCLE 3072
@@ -123,9 +124,12 @@ void amdtp_stream_set_parameters(struct amdtp_stream *s,
[CIP_SFC_176400] = 176400,
[CIP_SFC_192000] = 192000,
};
- unsigned int sfc;
+ unsigned int sfc, midi_channels;
- if (WARN_ON(amdtp_stream_running(s)))
+ midi_channels = DIV_ROUND_UP(midi_ports, 8);
+
+ if (WARN_ON(amdtp_stream_running(s)) ||
+ WARN_ON(midi_channels > AMDTP_MAX_CHANNELS_FOR_MIDI))
return;
for (sfc = 0; sfc < CIP_SFC_COUNT; ++sfc)
@@ -142,7 +146,7 @@ sfc_found:
pcm_channels *= 2;
}
s->sfc = sfc;
- s->data_block_quadlets = pcm_channels + DIV_ROUND_UP(midi_ports, 8);
+ s->data_block_quadlets = pcm_channels + midi_channels;
s->pcm_channels = pcm_channels;
s->midi_ports = midi_ports;
@@ -200,7 +204,7 @@ static void amdtp_read_s32_dualwire(struct amdtp_stream *s,
void amdtp_stream_set_pcm_format(struct amdtp_stream *s,
snd_pcm_format_t format)
{
- if (WARN_ON(amdtp_stream_running(s)))
+ if (WARN_ON(amdtp_stream_pcm_running(s)))
return;
switch (format) {
@@ -505,11 +509,46 @@ static void amdtp_fill_pcm_silence(struct amdtp_stream *s,
static void amdtp_fill_midi(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
- unsigned int i;
+ unsigned int f, port;
+ u8 *b;
+
+ for (f = 0; f < frames; f++) {
+ buffer[s->pcm_channels + 1] = 0x00;
+ b = (u8 *)&buffer[s->pcm_channels + 1];
+
+ port = (s->data_block_counter + f) % 8;
+ if ((s->midi[port] == NULL) ||
+ (snd_rawmidi_transmit(s->midi[port], b + 1, 1) <= 0)) {
+ b[0] = 0x80;
+ b[1] = 0x00; /* confirm to be zero */
+ } else {
+ b[0] = 0x81;
+ }
+ buffer += s->data_block_quadlets;
+ }
+}
+
+static void amdtp_pull_midi(struct amdtp_stream *s,
+ __be32 *buffer, unsigned int frames)
+{
+ unsigned int f, port;
+ int len;
+ u8 *b;
+
+ for (f = 0; f < frames; f++) {
+ port = (s->data_block_counter + f) % 8;
+ b = (u8 *)&buffer[s->pcm_channels + 1];
+
+ len = b[0] - 0x80;
+ if (len < 1 || 3 < len)
+ continue;
- for (i = 0; i < frames; ++i)
- buffer[s->pcm_channels + i * s->data_block_quadlets] =
- cpu_to_be32(0x80000000);
+ if (s->midi[port] == NULL)
+ continue;
+
+ snd_rawmidi_receive(s->midi[port], b + 1, len);
+ buffer += s->data_block_quadlets;
+ }
}
static void update_pcm_pointers(struct amdtp_stream *s,
@@ -683,10 +722,14 @@ static void handle_in_packet(struct amdtp_stream *s,
buffer += 2;
pcm = ACCESS_ONCE(s->pcm);
- if (pcm) {
+ if (pcm)
s->transfer_samples(s, pcm, buffer, data_blocks);
+
+ if (s->midi_ports)
+ amdtp_pull_midi(s, buffer, data_blocks);
+
+ if (pcm)
update_pcm_pointers(s, pcm, data_blocks);
- }
}
static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
@@ -916,3 +959,19 @@ void amdtp_stream_pcm_abort(struct amdtp_stream *s)
}
}
EXPORT_SYMBOL(amdtp_stream_pcm_abort);
+
+/**
+ * amdtp_stream_midi_running - check any MIDI streams are running or not
+ * @s: the AMDTP stream
+ *
+ * If this function returns true, any MIDI streams are running.
+ */
+bool amdtp_stream_midi_running(struct amdtp_stream *s)
+{
+ int i;
+ for (i = 0; i < AMDTP_MAX_CHANNELS_FOR_MIDI * 8; i++)
+ if (!IS_ERR_OR_NULL(s->midi[i]))
+ return true;
+ return false;
+}
+EXPORT_SYMBOL(amdtp_stream_midi_running);
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 019134e..6e8081c 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -44,9 +44,21 @@ enum cip_sfc {
#define AMDTP_OUT_PCM_FORMAT_BITS (SNDRV_PCM_FMTBIT_S16 | \
SNDRV_PCM_FMTBIT_S32)
+
+/*
+ * AMDTP packet can include channels for MIDI conformant data.
+ * Each MIDI conformant data channel includes 8 MPX-MIDI data stream.
+ * Each MPX-MIDI data stream includes one data stream from/to MIDI ports.
+ *
+ * This module supports maximum 1 MIDI conformant data channels.
+ * Then this AMDTP packets can transfer maximum 8 MIDI data streams.
+ */
+#define AMDTP_MAX_CHANNELS_FOR_MIDI 1
+
struct fw_unit;
struct fw_iso_context;
struct snd_pcm_substream;
+struct snd_rawmidi_substream;
enum amdtp_stream_direction {
AMDTP_OUT_STREAM = 0,
@@ -88,6 +100,8 @@ struct amdtp_stream {
unsigned int pcm_buffer_pointer;
unsigned int pcm_period_pointer;
bool pointer_flush;
+
+ struct snd_rawmidi_substream *midi[AMDTP_MAX_CHANNELS_FOR_MIDI * 8];
};
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
@@ -124,6 +138,8 @@ static inline bool amdtp_stream_running(struct amdtp_stream *s)
return !IS_ERR(s->context);
}
+bool amdtp_stream_midi_running(struct amdtp_stream *s);
+
/**
* amdtp_streaming_error - check for streaming error
* @s: the AMDTP stream
@@ -137,6 +153,17 @@ static inline bool amdtp_streaming_error(struct amdtp_stream *s)
}
/**
+ * amdtp_stream_pcm_running - check PCM stream is running or not
+ * @s: the AMDTP stream
+ *
+ * If this function returns true, PCM stream in the stream is running.
+ */
+static inline bool amdtp_stream_pcm_running(struct amdtp_stream *s)
+{
+ return !IS_ERR_OR_NULL(s->pcm);
+}
+
+/**
* amdtp_stream_pcm_trigger - start/stop playback from a PCM device
* @s: the AMDTP stream
* @pcm: the PCM device to be started, or %NULL to stop the current device
@@ -151,6 +178,24 @@ static inline void amdtp_stream_pcm_trigger(struct amdtp_stream *s,
ACCESS_ONCE(s->pcm) = pcm;
}
+/**
+ * amdtp_stream_midi_trigger - start/stop playback/capture with a MIDI device
+ * @s: the AMDTP stream
+ * @port: index of MIDI port
+ * @midi: the MIDI device to be started, or %NULL to stop the current device
+ *
+ * Call this function on a running isochronous stream to enable the actual
+ * transmission of MIDI data. This function should be called from the MIDI
+ * device's .trigger callback.
+ */
+static inline void amdtp_stream_midi_trigger(struct amdtp_stream *s,
+ unsigned int port,
+ struct snd_rawmidi_substream *midi)
+{
+ if (port < s->midi_ports)
+ ACCESS_ONCE(s->midi[port]) = midi;
+}
+
static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
{
return sfc & 1;
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 07/38] firewire-lib: Give syt value as parameter to handle_out_packet()
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (5 preceding siblings ...)
2013-12-20 13:13 ` [PATCH 06/38] firewire-lib: Add support for MIDI capture/playback Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:13 ` [PATCH 08/38] firewire-lib: Add support for duplex streams synchronization in blocking mode Takashi Sakamoto
` (31 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
For duplex streams with synchronization, this driver should pass 'presentation
timestamp' from in-packets to out-packets. This commit is preparation for this.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 7ed8d49..9ffc3bf 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -256,7 +256,9 @@ static unsigned int calculate_data_blocks(struct amdtp_stream *s)
{
unsigned int phase, data_blocks;
- if (!cip_sfc_is_base_44100(s->sfc)) {
+ if (s->flags & CIP_BLOCKING)
+ data_blocks = s->syt_interval;
+ else if (!cip_sfc_is_base_44100(s->sfc)) {
/* Sample_rate / 8000 is an integer, and precomputed. */
data_blocks = s->data_block_state;
} else {
@@ -620,26 +622,22 @@ static inline int queue_in_packet(struct amdtp_stream *s)
amdtp_stream_get_max_payload(s), false);
}
-static void handle_out_packet(struct amdtp_stream *s, unsigned int cycle)
+static void handle_out_packet(struct amdtp_stream *s, unsigned int syt)
{
__be32 *buffer;
- unsigned int index, data_blocks, syt, payload_length;
+ unsigned int data_blocks, payload_length;
struct snd_pcm_substream *pcm;
if (s->packet_index < 0)
return;
- index = s->packet_index;
/* this module generate empty packet for 'no data' */
- syt = calculate_syt(s, cycle);
- if (!(s->flags & CIP_BLOCKING))
+ if (!(s->flags & CIP_BLOCKING) || (syt != CIP_SYT_NO_INFO))
data_blocks = calculate_data_blocks(s);
- else if (syt != CIP_SYT_NO_INFO)
- data_blocks = s->syt_interval;
else
data_blocks = 0;
- buffer = s->buffer.packets[index].buffer;
+ buffer = s->buffer.packets[s->packet_index].buffer;
buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) |
(s->data_block_quadlets << AMDTP_DBS_SHIFT) |
s->data_block_counter);
@@ -737,7 +735,7 @@ static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
void *private_data)
{
struct amdtp_stream *s = private_data;
- unsigned int i, packets = header_length / 4;
+ unsigned int i, syt, packets = header_length / 4;
/*
* Compute the cycle of the last queued packet.
@@ -746,8 +744,10 @@ static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
*/
cycle += QUEUE_LENGTH - packets;
- for (i = 0; i < packets; ++i)
- handle_out_packet(s, ++cycle);
+ for (i = 0; i < packets; ++i) {
+ syt = calculate_syt(s, ++cycle);
+ handle_out_packet(s, syt);
+ }
fw_iso_context_queue_flush(s->context);
}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 08/38] firewire-lib: Add support for duplex streams synchronization in blocking mode
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (6 preceding siblings ...)
2013-12-20 13:13 ` [PATCH 07/38] firewire-lib: Give syt value as parameter to handle_out_packet() Takashi Sakamoto
@ 2013-12-20 13:13 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 09/38] firewire-lib: Add sort function for transmitted packet Takashi Sakamoto
` (30 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:13 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Generally, the devices can synchronize to handle 'presentation timestamp'
in CIP packets. This commit adds the functionality to pick up this timestamp
from in-packets transmitted by the device, then use it for out packets.
In previous implementation, this module generated the timestamp by itself. This
is 'SYT Match' mode. Then this drive acts as synchronization master. This
commit allows this module to act as synchronization slave.
This commit restricts this mechanism is only available in blocking mode because
handling the timestamp in non-blocking mode is more complicated than in
blocking mode.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++----
sound/firewire/amdtp.h | 32 +++++++++++++++++++--
2 files changed, 99 insertions(+), 9 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 9ffc3bf..03dd9b3 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -11,6 +11,7 @@
#include <linux/firewire.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/sched.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include "amdtp.h"
@@ -48,6 +49,7 @@
/* TODO: make these configurable */
#define INTERRUPT_INTERVAL 16
#define QUEUE_LENGTH 48
+#define CALLBACK_TIMEOUT_MS 100
#define IN_PACKET_HEADER_SIZE 4
#define OUT_PACKET_HEADER_SIZE 0
@@ -72,6 +74,10 @@ int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
tasklet_init(&s->period_tasklet, pcm_period_tasklet, (unsigned long)s);
s->packet_index = 0;
+ init_waitqueue_head(&s->callback_wait);
+ s->callbacked = false;
+ s->sync_slave = ERR_PTR(-1);
+
return 0;
}
EXPORT_SYMBOL(amdtp_stream_init);
@@ -626,7 +632,7 @@ static void handle_out_packet(struct amdtp_stream *s, unsigned int syt)
{
__be32 *buffer;
unsigned int data_blocks, payload_length;
- struct snd_pcm_substream *pcm;
+ struct snd_pcm_substream *pcm = NULL;
if (s->packet_index < 0)
return;
@@ -756,7 +762,7 @@ static void in_stream_callback(struct fw_iso_context *context, u32 cycle,
void *private_data)
{
struct amdtp_stream *s = private_data;
- unsigned int p, packets, data_quadlets;
+ unsigned int p, packets, syt, data_quadlets;
__be32 *buffer, *headers = header;
/* The number of packets in buffer */
@@ -768,6 +774,15 @@ static void in_stream_callback(struct fw_iso_context *context, u32 cycle,
/* The number of quadlets in this packet */
data_quadlets =
(be32_to_cpu(headers[p]) >> ISO_DATA_LENGTH_SHIFT) / 4;
+
+ /* Process sync slave stream */
+ if ((s->flags & CIP_BLOCKING) &&
+ (s->flags & CIP_SYNC_TO_DEVICE) &&
+ s->sync_slave->callbacked) {
+ syt = be32_to_cpu(buffer[1]) & CIP_SYT_MASK;
+ handle_out_packet(s->sync_slave, syt);
+ }
+
/* handle each packet data */
handle_in_packet(s, data_quadlets, buffer);
@@ -777,9 +792,43 @@ static void in_stream_callback(struct fw_iso_context *context, u32 cycle,
}
}
+ /* when sync to device, flush the packets for slave stream */
+ if ((s->flags & CIP_BLOCKING) &&
+ (s->flags & CIP_SYNC_TO_DEVICE) && s->sync_slave->callbacked)
+ fw_iso_context_queue_flush(s->sync_slave->context);
+
fw_iso_context_queue_flush(s->context);
}
+/* processing is done by master callback */
+static void slave_stream_callback(struct fw_iso_context *context, u32 cycle,
+ size_t header_length, void *header,
+ void *private_data)
+{
+ return;
+}
+
+/* this is executed one time */
+static void amdtp_stream_callback(struct fw_iso_context *context, u32 cycle,
+ size_t header_length, void *header,
+ void *private_data)
+{
+ struct amdtp_stream *s = private_data;
+
+ s->callbacked = true;
+
+ if (s->direction == AMDTP_IN_STREAM)
+ context->callback.sc = in_stream_callback;
+ else if (!(s->flags & CIP_SYNC_TO_DEVICE))
+ context->callback.sc = out_stream_callback;
+ else
+ context->callback.sc = slave_stream_callback;
+
+ context->callback.sc(context, cycle, header_length, header, s);
+
+ return;
+}
+
/**
* amdtp_stream_start - start transferring packets
* @s: the AMDTP stream to start
@@ -806,7 +855,6 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
};
unsigned int header_size;
enum dma_data_direction dir;
- fw_iso_callback_t cb;
int type, err;
mutex_lock(&s->mutex);
@@ -826,12 +874,10 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
dir = DMA_FROM_DEVICE;
type = FW_ISO_CONTEXT_RECEIVE;
header_size = IN_PACKET_HEADER_SIZE;
- cb = in_stream_callback;
} else {
dir = DMA_TO_DEVICE;
type = FW_ISO_CONTEXT_TRANSMIT;
header_size = OUT_PACKET_HEADER_SIZE;
- cb = out_stream_callback;
}
err = iso_packets_buffer_init(&s->buffer, s->unit, QUEUE_LENGTH,
amdtp_stream_get_max_payload(s), dir);
@@ -840,7 +886,7 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
s->context = fw_iso_context_create(fw_parent_device(s->unit)->card,
type, channel, speed, header_size,
- cb, s);
+ amdtp_stream_callback, s);
if (IS_ERR(s->context)) {
err = PTR_ERR(s->context);
if (err == -EBUSY)
@@ -863,6 +909,7 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
/* NOTE: TAG1 matches CIP. This just affects in stream */
s->data_block_counter = 0;
+ s->callbacked = false;
err = fw_iso_context_start(s->context, -1, 0,
FW_ISO_CONTEXT_MATCH_TAG1);
if (err < 0)
@@ -935,6 +982,8 @@ void amdtp_stream_stop(struct amdtp_stream *s)
s->context = ERR_PTR(-1);
iso_packets_buffer_destroy(&s->buffer, s->unit);
+ s->callbacked = false;
+
mutex_unlock(&s->mutex);
}
EXPORT_SYMBOL(amdtp_stream_stop);
@@ -961,6 +1010,21 @@ void amdtp_stream_pcm_abort(struct amdtp_stream *s)
EXPORT_SYMBOL(amdtp_stream_pcm_abort);
/**
+ * amdtp_stream_wait_callback - block till callbacked or timeout
+ * @s: the AMDTP stream
+ *
+ * If this function return false, the AMDTP stream should be stopped.
+ */
+bool amdtp_stream_wait_callback(struct amdtp_stream *s)
+{
+ wait_event_timeout(s->callback_wait,
+ s->callbacked == true,
+ msecs_to_jiffies(CALLBACK_TIMEOUT_MS));
+ return s->callbacked;
+}
+EXPORT_SYMBOL(amdtp_stream_wait_callback);
+
+/**
* amdtp_stream_midi_running - check any MIDI streams are running or not
* @s: the AMDTP stream
*
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 6e8081c..e5d5999 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -20,11 +20,14 @@
* at half the actual sample rate with twice the number of channels;
* two samples of a channel are stored consecutively in the packet.
* Requires blocking mode and SYT_INTERVAL-aligned PCM buffer size.
+ * @CIP_SYNC_TO_DEVICE: In sync to device mode, time stamp in out packets is
+ * generated by in packets. Defaultly this driver generates timestamp.
*/
enum cip_flags {
- CIP_NONBLOCKING = 0x00,
- CIP_BLOCKING = 0x01,
- CIP_HI_DUALWIRE = 0x02,
+ CIP_NONBLOCKING = 0x00,
+ CIP_BLOCKING = 0x01,
+ CIP_HI_DUALWIRE = 0x02,
+ CIP_SYNC_TO_DEVICE = 0x04
};
/**
@@ -102,6 +105,10 @@ struct amdtp_stream {
bool pointer_flush;
struct snd_rawmidi_substream *midi[AMDTP_MAX_CHANNELS_FOR_MIDI * 8];
+
+ bool callbacked;
+ wait_queue_head_t callback_wait;
+ struct amdtp_stream *sync_slave;
};
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
@@ -124,6 +131,7 @@ void amdtp_stream_set_pcm_format(struct amdtp_stream *s,
void amdtp_stream_pcm_prepare(struct amdtp_stream *s);
unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s);
void amdtp_stream_pcm_abort(struct amdtp_stream *s);
+bool amdtp_stream_wait_callback(struct amdtp_stream *s);
extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
@@ -201,4 +209,22 @@ static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
return sfc & 1;
}
+static inline void amdtp_stream_set_sync(enum cip_flags sync_mode,
+ struct amdtp_stream *master,
+ struct amdtp_stream *slave)
+{
+ /* clear sync flag */
+ master->flags &= ~CIP_SYNC_TO_DEVICE;
+ slave->flags &= ~CIP_SYNC_TO_DEVICE;
+
+ if (sync_mode == CIP_SYNC_TO_DEVICE) {
+ master->flags |= CIP_SYNC_TO_DEVICE;
+ slave->flags |= CIP_SYNC_TO_DEVICE;
+ master->sync_slave = slave;
+ } else
+ master->sync_slave = ERR_PTR(-1);
+
+ slave->sync_slave = ERR_PTR(-1);
+}
+
#endif
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 09/38] firewire-lib: Add sort function for transmitted packet
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (7 preceding siblings ...)
2013-12-20 13:13 ` [PATCH 08/38] firewire-lib: Add support for duplex streams synchronization in blocking mode Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 10/38] firewire-lib: Add transfer delay to synchronized duplex streams Takashi Sakamoto
` (29 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
The aim of this commit is to assure the continuity of timestamp in in-packets
transmitted by the device.
When callback of receive-context is processed, the parameters of in-packets are
stored in sort table and sorted by its value of data block counter. The sort
algorism works faster in ordered sequence than in messy sequence. This is
convinient for this purpose because the sequence is assumed not to be so messy.
After sorting, packets are processed except for a last few packets in sort
table. These packets are stored in buffer once and used in next cycle.
Fireworks with firmware version 5.5 or former is a type of device which
transmits packets with a bit disorder. For example,
Index Payload CIP header 1 CIP header 2
023 210 3F1100F8 900478E9
024 002 3F1100F8 90FFFFFF
025 210 3F110000 900490E9
026 210 3F110008 9004A4E9
027 210 3F110010 9004B8E9
028 002 3F110010 90FFFFFF
029 210 3F110020 9004E4E8 <-
030 210 3F110018 9004D0E8 <-
031 210 3F110028 9004F8E8
032 002 3F110028 90FFFFFF
033 210 3F110030 900410E8
034 210 3F110038 900424E8
035 210 3F110040 900438E8
036 002 3F110040 90FFFFFF
037 210 3F110050 900464E8 <-
038 210 3F110048 900450E8 <-
039 210 3F110058 900478E8
040 002 3F110058 90FFFFFF
041 210 3F110068 9004A4E8 <-
042 210 3F110060 900490E8 <-
043 210 3F110070 9004B8E8
044 002 3F110070 90FFFFFF
045 210 3F110080 9004E4E7 <-
046 210 3F110078 9004D0E8 <-
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 130 +++++++++++++++++++++++++++++++++++++++++++------
sound/firewire/amdtp.h | 4 ++
2 files changed, 119 insertions(+), 15 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 03dd9b3..b17ec9b 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -45,6 +45,7 @@
#define AMDTP_DBS_MASK 0x00ff0000
#define AMDTP_DBS_SHIFT 16
#define AMDTP_DBC_MASK 0x000000ff
+#define DBC_THRESHOLD (AMDTP_DBC_MASK / 2)
/* TODO: make these configurable */
#define INTERRUPT_INTERVAL 16
@@ -54,6 +55,13 @@
#define IN_PACKET_HEADER_SIZE 4
#define OUT_PACKET_HEADER_SIZE 0
+/* for re-ordering receive packets */
+struct sort_table {
+ unsigned int id;
+ unsigned int dbc;
+ unsigned int payload_size;
+};
+
static void pcm_period_tasklet(unsigned long data);
/**
@@ -78,6 +86,9 @@ int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
s->callbacked = false;
s->sync_slave = ERR_PTR(-1);
+ s->sort_table = NULL;
+ s->left_packets = NULL;
+
return 0;
}
EXPORT_SYMBOL(amdtp_stream_init);
@@ -736,6 +747,44 @@ static void handle_in_packet(struct amdtp_stream *s,
update_pcm_pointers(s, pcm, data_blocks);
}
+#define SWAP(tbl, m, n) \
+ t = tbl[n].id; \
+ tbl[n].id = tbl[m].id; \
+ tbl[m].id = t; \
+ t = tbl[n].dbc; \
+ tbl[n].dbc = tbl[m].dbc; \
+ tbl[m].dbc = t; \
+ t = tbl[n].payload_size; \
+ tbl[n].payload_size = tbl[m].payload_size; \
+ tbl[m].payload_size = t;
+static void packet_sort(struct sort_table *tbl, unsigned int len)
+{
+ unsigned int i, j, k, t;
+
+ i = 0;
+ do {
+ for (j = i + 1; j < len; j++) {
+ if (((tbl[i].dbc > tbl[j].dbc) &&
+ (tbl[i].dbc - tbl[j].dbc < DBC_THRESHOLD))) {
+ SWAP(tbl, i, j);
+ } else if ((tbl[j].dbc > tbl[i].dbc) &&
+ (tbl[j].dbc - tbl[i].dbc >
+ DBC_THRESHOLD)) {
+ for (k = i; k > 0; k--) {
+ if ((tbl[k].dbc > tbl[j].dbc) ||
+ (tbl[j].dbc - tbl[k].dbc >
+ DBC_THRESHOLD)) {
+ SWAP(tbl, j, k);
+ }
+ break;
+ }
+ }
+ break;
+ }
+ i = j;
+ } while (i < len);
+}
+
static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
size_t header_length, void *header,
void *private_data)
@@ -762,30 +811,65 @@ static void in_stream_callback(struct fw_iso_context *context, u32 cycle,
void *private_data)
{
struct amdtp_stream *s = private_data;
- unsigned int p, packets, syt, data_quadlets;
+ struct sort_table *entry, *tbl = s->sort_table;
+ unsigned int i, j, k, index, packets, syt, remain_packets;
__be32 *buffer, *headers = header;
/* The number of packets in buffer */
packets = header_length / IN_PACKET_HEADER_SIZE;
- for (p = 0; p < packets; p++) {
- buffer = s->buffer.packets[s->packet_index].buffer;
+ /* Store into sort table and sort. */
+ for (i = 0; i < packets; i++) {
+ entry = &tbl[s->remain_packets + i];
+ entry->id = i;
- /* The number of quadlets in this packet */
- data_quadlets =
- (be32_to_cpu(headers[p]) >> ISO_DATA_LENGTH_SHIFT) / 4;
+ index = s->packet_index + i;
+ if (index >= QUEUE_LENGTH)
+ index -= QUEUE_LENGTH;
+ buffer = s->buffer.packets[index].buffer;
+ entry->dbc = be32_to_cpu(buffer[0]) & AMDTP_DBC_MASK;
- /* Process sync slave stream */
- if ((s->flags & CIP_BLOCKING) &&
- (s->flags & CIP_SYNC_TO_DEVICE) &&
- s->sync_slave->callbacked) {
- syt = be32_to_cpu(buffer[1]) & CIP_SYT_MASK;
- handle_out_packet(s->sync_slave, syt);
- }
+ entry->payload_size = be32_to_cpu(headers[i]) >>
+ ISO_DATA_LENGTH_SHIFT;
+ }
+ packet_sort(tbl, packets + s->remain_packets);
- /* handle each packet data */
- handle_in_packet(s, data_quadlets, buffer);
+ /*
+ * for convinience, tbl[i].id >= QUEUE_LENGTH is a label to identify
+ * previous packets in buffer.
+ */
+ remain_packets = s->remain_packets;
+ s->remain_packets = packets / 4;
+ for (i = 0, j = 0, k = 0; i < remain_packets + packets; i++) {
+ if (tbl[i].id < QUEUE_LENGTH) {
+ index = s->packet_index + tbl[i].id;
+ if (index >= QUEUE_LENGTH)
+ index -= QUEUE_LENGTH;
+ buffer = s->buffer.packets[index].buffer;
+ } else
+ buffer = s->left_packets +
+ amdtp_stream_get_max_payload(s) * j++;
+
+ if (i < remain_packets + packets - s->remain_packets) {
+ /* Process sync slave stream */
+ if ((s->flags & CIP_BLOCKING) &&
+ (s->flags & CIP_SYNC_TO_DEVICE) &&
+ s->sync_slave->callbacked) {
+ syt = be32_to_cpu(buffer[1]) & CIP_SYT_MASK;
+ handle_out_packet(s->sync_slave, syt);
+ }
+ handle_in_packet(s, tbl[i].payload_size / 4, buffer);
+ } else {
+ tbl[k].id = tbl[i].id + QUEUE_LENGTH;
+ tbl[k].dbc = tbl[i].dbc;
+ tbl[k].payload_size = tbl[i].payload_size;
+ memcpy(s->left_packets +
+ amdtp_stream_get_max_payload(s) * k++,
+ buffer, tbl[i].payload_size);
+ }
+ }
+ for (i = 0; i < packets; i++) {
if (queue_in_packet(s) < 0) {
amdtp_stream_pcm_abort(s);
return;
@@ -884,6 +968,17 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
if (err < 0)
goto err_unlock;
+ /* for sorting transmitted packets */
+ if (s->direction == AMDTP_IN_STREAM) {
+ s->remain_packets = 0;
+ s->sort_table = kzalloc(sizeof(struct sort_table) *
+ QUEUE_LENGTH, GFP_KERNEL);
+ if (s->sort_table == NULL)
+ return -ENOMEM;
+ s->left_packets = kzalloc(amdtp_stream_get_max_payload(s) *
+ QUEUE_LENGTH / 4, GFP_KERNEL);
+ }
+
s->context = fw_iso_context_create(fw_parent_device(s->unit)->card,
type, channel, speed, header_size,
amdtp_stream_callback, s);
@@ -982,6 +1077,11 @@ void amdtp_stream_stop(struct amdtp_stream *s)
s->context = ERR_PTR(-1);
iso_packets_buffer_destroy(&s->buffer, s->unit);
+ if (s->sort_table != NULL)
+ kfree(s->sort_table);
+ if (s->left_packets != NULL)
+ kfree(s->left_packets);
+
s->callbacked = false;
mutex_unlock(&s->mutex);
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index e5d5999..4f57c9e 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -109,6 +109,10 @@ struct amdtp_stream {
bool callbacked;
wait_queue_head_t callback_wait;
struct amdtp_stream *sync_slave;
+
+ void *sort_table;
+ void *left_packets;
+ unsigned int remain_packets;
};
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 10/38] firewire-lib: Add transfer delay to synchronized duplex streams
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (8 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 09/38] firewire-lib: Add sort function for transmitted packet Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 11/38] firewire-lib: Add support for channel mapping Takashi Sakamoto
` (28 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Currently, when duplex streams with synchronization mode, this module just pass
'presentation timestamp' from in-packets to out-packets. This is enough to
handle actual device but logically the timestamp should include
'transfer delay' and 'processing time'. This means the timestamp in out-packet
should be at future.
To be simple, this commit add only 'transfer delay'.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index b17ec9b..00d4485 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -785,6 +785,15 @@ static void packet_sort(struct sort_table *tbl, unsigned int len)
} while (i < len);
}
+static inline void add_transfer_delay(struct amdtp_stream *s, unsigned int *syt)
+{
+ if (*syt != CIP_SYT_NO_INFO) {
+ *syt += (s->transfer_delay / TICKS_PER_CYCLE) << 12;
+ *syt += s->transfer_delay % TICKS_PER_CYCLE;
+ *syt &= CIP_SYT_MASK;
+ }
+}
+
static void out_stream_callback(struct fw_iso_context *context, u32 cycle,
size_t header_length, void *header,
void *private_data)
@@ -856,6 +865,7 @@ static void in_stream_callback(struct fw_iso_context *context, u32 cycle,
(s->flags & CIP_SYNC_TO_DEVICE) &&
s->sync_slave->callbacked) {
syt = be32_to_cpu(buffer[1]) & CIP_SYT_MASK;
+ add_transfer_delay(s, &syt);
handle_out_packet(s->sync_slave, syt);
}
handle_in_packet(s, tbl[i].payload_size / 4, buffer);
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 11/38] firewire-lib: Add support for channel mapping
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (9 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 10/38] firewire-lib: Add transfer delay to synchronized duplex streams Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 12/38] firewire-lib: Rename macros, variables and functions for CMP Takashi Sakamoto
` (27 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Some devices arrange the position of PCM/MIDI data in AMDTP packet. This commit
allows drivers to set channel mapping.
To be simple, the mapping table is an array with fixed length. Then the number
of channels for PCM is restricted by 64 channels.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 122 +++++++++++++++++++++++++++++--------------------
sound/firewire/amdtp.h | 8 ++++
2 files changed, 80 insertions(+), 50 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 00d4485..832bf27 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -141,11 +141,12 @@ void amdtp_stream_set_parameters(struct amdtp_stream *s,
[CIP_SFC_176400] = 176400,
[CIP_SFC_192000] = 192000,
};
- unsigned int sfc, midi_channels;
+ unsigned int i, sfc, midi_channels;
midi_channels = DIV_ROUND_UP(midi_ports, 8);
- if (WARN_ON(amdtp_stream_running(s)) ||
+ if (WARN_ON(amdtp_stream_running(s)) |
+ WARN_ON(pcm_channels > AMDTP_MAX_CHANNELS_FOR_PCM) |
WARN_ON(midi_channels > AMDTP_MAX_CHANNELS_FOR_MIDI))
return;
@@ -160,11 +161,12 @@ sfc_found:
if (s->dual_wire) {
sfc -= 2;
rate /= 2;
- pcm_channels *= 2;
+ s->pcm_channels = pcm_channels * 2;
+ } else {
+ s->pcm_channels = pcm_channels;
}
s->sfc = sfc;
- s->data_block_quadlets = pcm_channels + midi_channels;
- s->pcm_channels = pcm_channels;
+ s->data_block_quadlets = s->pcm_channels + midi_channels;
s->midi_ports = midi_ports;
s->syt_interval = amdtp_syt_intervals[sfc];
@@ -174,6 +176,11 @@ sfc_found:
if (s->flags & CIP_BLOCKING)
/* additional buffering needed to adjust for no-data packets */
s->transfer_delay += TICKS_PER_SECOND * s->syt_interval / rate;
+
+ /* init the position map for PCM and MIDI channels */
+ for (i = 0; i < pcm_channels; i++)
+ s->pcm_positions[i] = i;
+ s->midi_position = s->pcm_channels;
}
EXPORT_SYMBOL(amdtp_stream_set_parameters);
@@ -352,22 +359,20 @@ static void amdtp_write_s32(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, frame_step, i, c;
+ unsigned int remaining_frames, i, c;
const u32 *src;
- channels = s->pcm_channels;
src = (void *)runtime->dma_area +
frames_to_bytes(runtime, s->pcm_buffer_pointer);
remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
- frame_step = s->data_block_quadlets - channels;
for (i = 0; i < frames; ++i) {
- for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src >> 8) | 0x40000000);
+ for (c = 0; c < s->pcm_channels; ++c) {
+ buffer[s->pcm_positions[c]] =
+ cpu_to_be32((*src >> 8) | 0x40000000);
src++;
- buffer++;
}
- buffer += frame_step;
+ buffer += s->data_block_quadlets;
if (--remaining_frames == 0)
src = (void *)runtime->dma_area;
}
@@ -378,22 +383,20 @@ static void amdtp_write_s16(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, frame_step, i, c;
+ unsigned int remaining_frames, i, c;
const u16 *src;
- channels = s->pcm_channels;
src = (void *)runtime->dma_area +
frames_to_bytes(runtime, s->pcm_buffer_pointer);
remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
- frame_step = s->data_block_quadlets - channels;
for (i = 0; i < frames; ++i) {
- for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src << 8) | 0x40000000);
+ for (c = 0; c < s->pcm_channels; ++c) {
+ buffer[s->pcm_positions[c]] =
+ cpu_to_be32((*src << 8) | 0x40000000);
src++;
- buffer++;
}
- buffer += frame_step;
+ buffer += s->data_block_quadlets;
if (--remaining_frames == 0)
src = (void *)runtime->dma_area;
}
@@ -404,29 +407,29 @@ static void amdtp_write_s32_dualwire(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, frame_adjust_1, frame_adjust_2, i, c;
+ unsigned int channels, remaining_frames, i, c;
const u32 *src;
- channels = s->pcm_channels;
src = (void *)runtime->dma_area +
- s->pcm_buffer_pointer * (runtime->frame_bits / 8);
- frame_adjust_1 = channels - 1;
- frame_adjust_2 = 1 - (s->data_block_quadlets - channels);
+ frames_to_bytes(runtime, s->pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ channels = s->pcm_channels / 2;
- channels /= 2;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src >> 8) | 0x40000000);
+ buffer[s->pcm_positions[c] * 2] =
+ cpu_to_be32((*src >> 8) | 0x40000000);
src++;
- buffer += 2;
}
- buffer -= frame_adjust_1;
+ buffer += 1;
for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src >> 8) | 0x40000000);
+ buffer[s->pcm_positions[c] * 2] =
+ cpu_to_be32((*src >> 8) | 0x40000000);
src++;
- buffer += 2;
}
- buffer -= frame_adjust_2;
+ buffer += s->data_block_quadlets - 1;
+ if (--remaining_frames == 0)
+ src = (void *)runtime->dma_area;
}
}
@@ -435,29 +438,29 @@ static void amdtp_write_s16_dualwire(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, frame_adjust_1, frame_adjust_2, i, c;
+ unsigned int channels, remaining_frames, i, c;
const u16 *src;
- channels = s->pcm_channels;
src = (void *)runtime->dma_area +
- s->pcm_buffer_pointer * (runtime->frame_bits / 8);
- frame_adjust_1 = channels - 1;
- frame_adjust_2 = 1 - (s->data_block_quadlets - channels);
+ frames_to_bytes(runtime, s->pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ channels = s->pcm_channels / 2;
- channels /= 2;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src << 8) | 0x40000000);
+ buffer[s->pcm_positions[c] * 2] =
+ cpu_to_be32((*src << 8) | 0x40000000);
src++;
- buffer += 2;
}
- buffer -= frame_adjust_1;
+ buffer += 1;
for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src << 8) | 0x40000000);
+ buffer[s->pcm_positions[c] * 2] =
+ cpu_to_be32((*src << 8) | 0x40000000);
src++;
- buffer += 2;
}
- buffer -= frame_adjust_2;
+ buffer += s->data_block_quadlets - 1;
+ if (--remaining_frames == 0)
+ src = (void *)runtime->dma_area;
}
}
@@ -475,7 +478,7 @@ static void amdtp_read_s32(struct amdtp_stream *s,
for (i = 0; i < frames; ++i) {
for (c = 0; c < s->pcm_channels; ++c) {
- *dst = be32_to_cpu(buffer[c]) << 8;
+ *dst = be32_to_cpu(buffer[s->pcm_positions[c]]) << 8;
dst++;
}
buffer += s->data_block_quadlets;
@@ -499,12 +502,14 @@ static void amdtp_read_s32_dualwire(struct amdtp_stream *s,
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
- *dst = be32_to_cpu(buffer[c * 2]) << 8;
+ *dst =
+ be32_to_cpu(buffer[s->pcm_positions[c] * 2]) << 8;
dst++;
}
buffer += 1;
for (c = 0; c < channels; ++c) {
- *dst = be32_to_cpu(buffer[c * 2]) << 8;
+ *dst =
+ be32_to_cpu(buffer[s->pcm_positions[c] * 2]) << 8;
dst++;
}
buffer += s->data_block_quadlets - 1;
@@ -520,11 +525,26 @@ static void amdtp_fill_pcm_silence(struct amdtp_stream *s,
for (i = 0; i < frames; ++i) {
for (c = 0; c < s->pcm_channels; ++c)
- buffer[c] = cpu_to_be32(0x40000000);
+ buffer[s->pcm_positions[c]] = cpu_to_be32(0x40000000);
buffer += s->data_block_quadlets;
}
}
+static void amdtp_fill_pcm_silence_dualwire(struct amdtp_stream *s,
+ __be32 *buffer, unsigned int frames)
+{
+ unsigned int i, c, channels;
+
+ channels = s->pcm_channels / 2;
+ for (i = 0; i < frames; ++i) {
+ for (c = 0; c < channels; ++c) {
+ buffer[s->pcm_positions[c] * 2] =
+ buffer[s->pcm_positions[c] * 2 + 1] =
+ cpu_to_be32(0x40000000);
+ }
+ buffer += s->data_block_quadlets;
+ }
+}
static void amdtp_fill_midi(struct amdtp_stream *s,
__be32 *buffer, unsigned int frames)
{
@@ -532,8 +552,8 @@ static void amdtp_fill_midi(struct amdtp_stream *s,
u8 *b;
for (f = 0; f < frames; f++) {
- buffer[s->pcm_channels + 1] = 0x00;
- b = (u8 *)&buffer[s->pcm_channels + 1];
+ buffer[s->midi_position] = 0x00;
+ b = (u8 *)&buffer[s->midi_position];
port = (s->data_block_counter + f) % 8;
if ((s->midi[port] == NULL) ||
@@ -556,7 +576,7 @@ static void amdtp_pull_midi(struct amdtp_stream *s,
for (f = 0; f < frames; f++) {
port = (s->data_block_counter + f) % 8;
- b = (u8 *)&buffer[s->pcm_channels + 1];
+ b = (u8 *)&buffer[s->midi_position];
len = b[0] - 0x80;
if (len < 1 || 3 < len)
@@ -665,6 +685,8 @@ static void handle_out_packet(struct amdtp_stream *s, unsigned int syt)
pcm = ACCESS_ONCE(s->pcm);
if (pcm)
s->transfer_samples(s, pcm, buffer, data_blocks);
+ else if (s->dual_wire)
+ amdtp_fill_pcm_silence_dualwire(s, buffer, data_blocks);
else
amdtp_fill_pcm_silence(s, buffer, data_blocks);
if (s->midi_ports)
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 4f57c9e..240de9d 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -49,6 +49,12 @@ enum cip_sfc {
/*
+ * This module supports maximum 64 PCM channels for one PCM stream
+ * This is for our convinience.
+ */
+#define AMDTP_MAX_CHANNELS_FOR_PCM 64
+
+/*
* AMDTP packet can include channels for MIDI conformant data.
* Each MIDI conformant data channel includes 8 MPX-MIDI data stream.
* Each MPX-MIDI data stream includes one data stream from/to MIDI ports.
@@ -83,6 +89,8 @@ struct amdtp_stream {
void (*transfer_samples)(struct amdtp_stream *s,
struct snd_pcm_substream *pcm,
__be32 *buffer, unsigned int frames);
+ u8 pcm_positions[AMDTP_MAX_CHANNELS_FOR_PCM];
+ u8 midi_position;
unsigned int syt_interval;
unsigned int transfer_delay;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 12/38] firewire-lib: Rename macros, variables and functions for CMP
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (10 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 11/38] firewire-lib: Add support for channel mapping Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 13/38] firewire-lib: Add 'direction' member to 'cmp_connection' structure Takashi Sakamoto
` (26 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Referring to IEC 61883-1, oMPR and iMPR, oPCR and iPCR have some fields with
the same role in the same position. This patch renames some macros, variables
and function arguments with "i" in its prefix to reuse them between oMPR and
iMPR, oPCR and iPCR.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/cmp.c | 91 ++++++++++++++++++++++++++--------------------------
sound/firewire/cmp.h | 6 ++--
2 files changed, 49 insertions(+), 48 deletions(-)
diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c
index efdbf58..17ad4f2 100644
--- a/sound/firewire/cmp.c
+++ b/sound/firewire/cmp.c
@@ -14,18 +14,20 @@
#include "iso-resources.h"
#include "cmp.h"
-#define IMPR_SPEED_MASK 0xc0000000
-#define IMPR_SPEED_SHIFT 30
-#define IMPR_XSPEED_MASK 0x00000060
-#define IMPR_XSPEED_SHIFT 5
-#define IMPR_PLUGS_MASK 0x0000001f
-
-#define IPCR_ONLINE 0x80000000
-#define IPCR_BCAST_CONN 0x40000000
-#define IPCR_P2P_CONN_MASK 0x3f000000
-#define IPCR_P2P_CONN_SHIFT 24
-#define IPCR_CHANNEL_MASK 0x003f0000
-#define IPCR_CHANNEL_SHIFT 16
+/* MPR common fields */
+#define MPR_SPEED_MASK 0xc0000000
+#define MPR_SPEED_SHIFT 30
+#define MPR_XSPEED_MASK 0x00000060
+#define MPR_XSPEED_SHIFT 5
+#define MPR_PLUGS_MASK 0x0000001f
+
+/* PCR common fields */
+#define PCR_ONLINE 0x80000000
+#define PCR_BCAST_CONN 0x40000000
+#define PCR_P2P_CONN_MASK 0x3f000000
+#define PCR_P2P_CONN_SHIFT 24
+#define PCR_CHANNEL_MASK 0x003f0000
+#define PCR_CHANNEL_SHIFT 16
enum bus_reset_handling {
ABORT_ON_BUS_RESET,
@@ -88,24 +90,24 @@ static int pcr_modify(struct cmp_connection *c,
* cmp_connection_init - initializes a connection manager
* @c: the connection manager to initialize
* @unit: a unit of the target device
- * @ipcr_index: the index of the iPCR on the target device
+ * @pcr_index: the index of the iPCR/oPCR on the target device
*/
int cmp_connection_init(struct cmp_connection *c,
struct fw_unit *unit,
- unsigned int ipcr_index)
+ unsigned int pcr_index)
{
- __be32 impr_be;
- u32 impr;
+ __be32 mpr_be;
+ u32 mpr;
int err;
err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
CSR_REGISTER_BASE + CSR_IMPR,
- &impr_be, 4, 0);
+ &mpr_be, 4, 0);
if (err < 0)
return err;
- impr = be32_to_cpu(impr_be);
+ mpr = be32_to_cpu(mpr_be);
- if (ipcr_index >= (impr & IMPR_PLUGS_MASK))
+ if (pcr_index >= (mpr & MPR_PLUGS_MASK))
return -EINVAL;
err = fw_iso_resources_init(&c->resources, unit);
@@ -115,10 +117,10 @@ int cmp_connection_init(struct cmp_connection *c,
c->connected = false;
mutex_init(&c->mutex);
c->last_pcr_value = cpu_to_be32(0x80000000);
- c->pcr_index = ipcr_index;
- c->max_speed = (impr & IMPR_SPEED_MASK) >> IMPR_SPEED_SHIFT;
+ c->pcr_index = pcr_index;
+ c->max_speed = (mpr & MPR_SPEED_MASK) >> MPR_SPEED_SHIFT;
if (c->max_speed == SCODE_BETA)
- c->max_speed += (impr & IMPR_XSPEED_MASK) >> IMPR_XSPEED_SHIFT;
+ c->max_speed += (mpr & MPR_XSPEED_MASK) >> MPR_XSPEED_SHIFT;
return 0;
}
@@ -139,23 +141,23 @@ EXPORT_SYMBOL(cmp_connection_destroy);
static __be32 ipcr_set_modify(struct cmp_connection *c, __be32 ipcr)
{
- ipcr &= ~cpu_to_be32(IPCR_BCAST_CONN |
- IPCR_P2P_CONN_MASK |
- IPCR_CHANNEL_MASK);
- ipcr |= cpu_to_be32(1 << IPCR_P2P_CONN_SHIFT);
- ipcr |= cpu_to_be32(c->resources.channel << IPCR_CHANNEL_SHIFT);
+ ipcr &= ~cpu_to_be32(PCR_BCAST_CONN |
+ PCR_P2P_CONN_MASK |
+ PCR_CHANNEL_MASK);
+ ipcr |= cpu_to_be32(1 << PCR_P2P_CONN_SHIFT);
+ ipcr |= cpu_to_be32(c->resources.channel << PCR_CHANNEL_SHIFT);
return ipcr;
}
-static int ipcr_set_check(struct cmp_connection *c, __be32 ipcr)
+static int pcr_set_check(struct cmp_connection *c, __be32 pcr)
{
- if (ipcr & cpu_to_be32(IPCR_BCAST_CONN |
- IPCR_P2P_CONN_MASK)) {
+ if (pcr & cpu_to_be32(PCR_BCAST_CONN |
+ PCR_P2P_CONN_MASK)) {
cmp_error(c, "plug is already in use\n");
return -EBUSY;
}
- if (!(ipcr & cpu_to_be32(IPCR_ONLINE))) {
+ if (!(pcr & cpu_to_be32(PCR_ONLINE))) {
cmp_error(c, "plug is not on-line\n");
return -ECONNREFUSED;
}
@@ -170,9 +172,9 @@ static int ipcr_set_check(struct cmp_connection *c, __be32 ipcr)
*
* This function establishes a point-to-point connection from the local
* computer to the target by allocating isochronous resources (channel and
- * bandwidth) and setting the target's input plug control register. When this
- * function succeeds, the caller is responsible for starting transmitting
- * packets.
+ * bandwidth) and setting the target's input/output plug control register.
+ * When this function succeeds, the caller is responsible for starting
+ * transmitting packets.
*/
int cmp_connection_establish(struct cmp_connection *c,
unsigned int max_payload_bytes)
@@ -193,7 +195,7 @@ retry_after_bus_reset:
if (err < 0)
goto err_mutex;
- err = pcr_modify(c, ipcr_set_modify, ipcr_set_check,
+ err = pcr_modify(c, ipcr_set_modify, pcr_set_check,
ABORT_ON_BUS_RESET);
if (err == -EAGAIN) {
fw_iso_resources_free(&c->resources);
@@ -221,8 +223,8 @@ EXPORT_SYMBOL(cmp_connection_establish);
* cmp_connection_update - update the connection after a bus reset
* @c: the connection manager
*
- * This function must be called from the driver's .update handler to reestablish
- * any connection that might have been active.
+ * This function must be called from the driver's .update handler to
+ * reestablish any connection that might have been active.
*
* Returns zero on success, or a negative error code. On an error, the
* connection is broken and the caller must stop transmitting iso packets.
@@ -242,7 +244,7 @@ int cmp_connection_update(struct cmp_connection *c)
if (err < 0)
goto err_unconnect;
- err = pcr_modify(c, ipcr_set_modify, ipcr_set_check,
+ err = pcr_modify(c, ipcr_set_modify, pcr_set_check,
SUCCEED_ON_BUS_RESET);
if (err < 0)
goto err_resources;
@@ -261,19 +263,18 @@ err_unconnect:
}
EXPORT_SYMBOL(cmp_connection_update);
-
-static __be32 ipcr_break_modify(struct cmp_connection *c, __be32 ipcr)
+static __be32 pcr_break_modify(struct cmp_connection *c, __be32 pcr)
{
- return ipcr & ~cpu_to_be32(IPCR_BCAST_CONN | IPCR_P2P_CONN_MASK);
+ return pcr & ~cpu_to_be32(PCR_BCAST_CONN | PCR_P2P_CONN_MASK);
}
/**
* cmp_connection_break - break the connection to the target
* @c: the connection manager
*
- * This function deactives the connection in the target's input plug control
- * register, and frees the isochronous resources of the connection. Before
- * calling this function, the caller should cease transmitting packets.
+ * This function deactives the connection in the target's input/output plug
+ * control register, and frees the isochronous resources of the connection.
+ * Before calling this function, the caller should cease transmitting packets.
*/
void cmp_connection_break(struct cmp_connection *c)
{
@@ -286,7 +287,7 @@ void cmp_connection_break(struct cmp_connection *c)
return;
}
- err = pcr_modify(c, ipcr_break_modify, NULL, SUCCEED_ON_BUS_RESET);
+ err = pcr_modify(c, pcr_break_modify, NULL, SUCCEED_ON_BUS_RESET);
if (err < 0)
cmp_error(c, "plug is still connected\n");
diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h
index f47de08..2320cd4 100644
--- a/sound/firewire/cmp.h
+++ b/sound/firewire/cmp.h
@@ -11,8 +11,8 @@ struct fw_unit;
* struct cmp_connection - manages an isochronous connection to a device
* @speed: the connection's actual speed
*
- * This structure manages (using CMP) an isochronous stream from the local
- * computer to a device's input plug (iPCR).
+ * This structure manages (using CMP) an isochronous stream between the local
+ * computer and a device's input plug (iPCR) and output plug (oPCR).
*
* There is no corresponding oPCR created on the local computer, so it is not
* possible to overlay connections on top of this one.
@@ -30,7 +30,7 @@ struct cmp_connection {
int cmp_connection_init(struct cmp_connection *connection,
struct fw_unit *unit,
- unsigned int ipcr_index);
+ unsigned int pcr_index);
void cmp_connection_destroy(struct cmp_connection *connection);
int cmp_connection_establish(struct cmp_connection *connection,
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 13/38] firewire-lib: Add 'direction' member to 'cmp_connection' structure
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (11 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 12/38] firewire-lib: Rename macros, variables and functions for CMP Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 14/38] firewire-lib: Add handling output connection by CMP Takashi Sakamoto
` (25 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This patch adds 'direction' member to 'cmp_connection' structure to indicate
the direction of connection. This patch also adds 'direction' argument to
cmp_connection_init() function to determine the direction.
The cmp_connection_init() function is exported and used in snd-firewire-speakers
so this patch also affect it.
This patch just add them. Actual implementation will be done by followed
patches.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/cmp.c | 1 +
sound/firewire/cmp.h | 7 +++++++
sound/firewire/speakers.c | 2 +-
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c
index 17ad4f2..1430fec 100644
--- a/sound/firewire/cmp.c
+++ b/sound/firewire/cmp.c
@@ -94,6 +94,7 @@ static int pcr_modify(struct cmp_connection *c,
*/
int cmp_connection_init(struct cmp_connection *c,
struct fw_unit *unit,
+ enum cmp_direction direction,
unsigned int pcr_index)
{
__be32 mpr_be;
diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h
index 2320cd4..9b58448 100644
--- a/sound/firewire/cmp.h
+++ b/sound/firewire/cmp.h
@@ -7,6 +7,11 @@
struct fw_unit;
+enum cmp_direction {
+ CMP_INPUT = 0,
+ CMP_OUTPUT,
+};
+
/**
* struct cmp_connection - manages an isochronous connection to a device
* @speed: the connection's actual speed
@@ -26,10 +31,12 @@ struct cmp_connection {
__be32 last_pcr_value;
unsigned int pcr_index;
unsigned int max_speed;
+ enum cmp_direction direction;
};
int cmp_connection_init(struct cmp_connection *connection,
struct fw_unit *unit,
+ enum cmp_direction direction,
unsigned int pcr_index);
void cmp_connection_destroy(struct cmp_connection *connection);
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 28147ef..afbaa55 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -680,7 +680,7 @@ static int fwspk_probe(struct fw_unit *unit,
fwspk->unit = fw_unit_get(unit);
fwspk->device_info = (const struct device_info *)id->driver_data;
- err = cmp_connection_init(&fwspk->connection, unit, 0);
+ err = cmp_connection_init(&fwspk->connection, unit, CMP_INPUT, 0);
if (err < 0)
goto err_unit;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 14/38] firewire-lib: Add handling output connection by CMP
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (12 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 13/38] firewire-lib: Add 'direction' member to 'cmp_connection' structure Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 15/38] firewire-lib: Add a new function to check others' connection Takashi Sakamoto
` (24 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This patch adds some macros, codes with condition of direction and new functions
to handle output connection. Once cmp_connection_init() is executed with its
direction, CMP input and output connection can be handled by the same way.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/cmp.c | 113 +++++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 104 insertions(+), 9 deletions(-)
diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c
index 1430fec..00b1b2d 100644
--- a/sound/firewire/cmp.c
+++ b/sound/firewire/cmp.c
@@ -29,6 +29,16 @@
#define PCR_CHANNEL_MASK 0x003f0000
#define PCR_CHANNEL_SHIFT 16
+/* oPCR specific fields */
+#define OPCR_XSPEED_MASK 0x00C00000
+#define OPCR_XSPEED_SHIFT 22
+#define OPCR_SPEED_MASK 0x0000C000
+#define OPCR_SPEED_SHIFT 14
+#define OPCR_OVERHEAD_ID_MASK 0x00003C00
+#define OPCR_OVERHEAD_ID_SHIFT 10
+#define OPCR_PAYLOAD_MASK 0x000003FF
+#define OPCR_PAYLOAD_SHIFT 0
+
enum bus_reset_handling {
ABORT_ON_BUS_RESET,
SUCCEED_ON_BUS_RESET,
@@ -41,10 +51,30 @@ void cmp_error(struct cmp_connection *c, const char *fmt, ...)
va_start(va, fmt);
dev_err(&c->resources.unit->device, "%cPCR%u: %pV",
- 'i', c->pcr_index, &(struct va_format){ fmt, &va });
+ (c->direction == CMP_INPUT) ? 'i' : 'o',
+ c->pcr_index, &(struct va_format){ fmt, &va });
va_end(va);
}
+static unsigned long long get_offset(struct cmp_connection *c, bool master)
+{
+ unsigned long long offset = CSR_REGISTER_BASE;
+
+ if (!master) {
+ if (c->direction == CMP_INPUT)
+ offset += CSR_IPCR(c->pcr_index);
+ else
+ offset += CSR_OPCR(c->pcr_index);
+ } else {
+ if (c->direction == CMP_INPUT)
+ offset += CSR_IMPR;
+ else
+ offset += CSR_OMPR;
+ }
+
+ return offset;
+}
+
static int pcr_modify(struct cmp_connection *c,
__be32 (*modify)(struct cmp_connection *c, __be32 old),
int (*check)(struct cmp_connection *c, __be32 pcr),
@@ -60,8 +90,7 @@ static int pcr_modify(struct cmp_connection *c,
err = snd_fw_transaction(
c->resources.unit, TCODE_LOCK_COMPARE_SWAP,
- CSR_REGISTER_BASE + CSR_IPCR(c->pcr_index),
- buffer, 8,
+ get_offset(c, false), buffer, 8,
FW_FIXED_GENERATION | c->resources.generation);
if (err < 0) {
@@ -102,8 +131,7 @@ int cmp_connection_init(struct cmp_connection *c,
int err;
err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
- CSR_REGISTER_BASE + CSR_IMPR,
- &mpr_be, 4, 0);
+ get_offset(c, true), &mpr_be, 4, 0);
if (err < 0)
return err;
mpr = be32_to_cpu(mpr_be);
@@ -122,6 +150,7 @@ int cmp_connection_init(struct cmp_connection *c,
c->max_speed = (mpr & MPR_SPEED_MASK) >> MPR_SPEED_SHIFT;
if (c->max_speed == SCODE_BETA)
c->max_speed += (mpr & MPR_XSPEED_MASK) >> MPR_XSPEED_SHIFT;
+ c->direction = direction;
return 0;
}
@@ -151,6 +180,62 @@ static __be32 ipcr_set_modify(struct cmp_connection *c, __be32 ipcr)
return ipcr;
}
+static int get_overhead_id(struct cmp_connection *c)
+{
+ int id;
+
+ /*
+ * apply "oPCR overhead ID encoding"
+ * the encoding table can convert up to 512.
+ * here the value over 512 is converted as the same way as 512.
+ */
+ for (id = 1; id < 16; id++) {
+ if (c->resources.bandwidth_overhead < (id << 5))
+ break;
+ }
+ if (id == 16)
+ id = 0;
+
+ return id;
+}
+
+static __be32 opcr_set_modify(struct cmp_connection *c, __be32 opcr)
+{
+ unsigned int spd, xspd;
+
+ /* generate speed and extended speed field value */
+ if (c->speed > SCODE_400) {
+ spd = SCODE_800;
+ xspd = c->speed - SCODE_800;
+ } else {
+ spd = c->speed;
+ xspd = 0;
+ }
+
+ opcr &= ~cpu_to_be32(PCR_BCAST_CONN |
+ PCR_P2P_CONN_MASK |
+ OPCR_XSPEED_MASK |
+ PCR_CHANNEL_MASK |
+ OPCR_SPEED_MASK |
+ OPCR_OVERHEAD_ID_MASK |
+ OPCR_PAYLOAD_MASK);
+ opcr |= cpu_to_be32(1 << PCR_P2P_CONN_SHIFT);
+ opcr |= cpu_to_be32(xspd << OPCR_XSPEED_SHIFT);
+ opcr |= cpu_to_be32(c->resources.channel << PCR_CHANNEL_SHIFT);
+ opcr |= cpu_to_be32(spd << OPCR_SPEED_SHIFT);
+ opcr |= cpu_to_be32(get_overhead_id(c) << OPCR_OVERHEAD_ID_SHIFT);
+ /*
+ * here zero is applied to payload field.
+ * it means the maximum number of quadlets in an isochronous packet is
+ * 1024 when spd is less than three, 1024 * 2 * xspd + 1 when spd is
+ * equal to three. An arbitrary value can be set here but 0 is enough
+ * for our purpose.
+ */
+ opcr |= cpu_to_be32(0 << OPCR_PAYLOAD_SHIFT);
+
+ return opcr;
+}
+
static int pcr_set_check(struct cmp_connection *c, __be32 pcr)
{
if (pcr & cpu_to_be32(PCR_BCAST_CONN |
@@ -196,8 +281,13 @@ retry_after_bus_reset:
if (err < 0)
goto err_mutex;
- err = pcr_modify(c, ipcr_set_modify, pcr_set_check,
- ABORT_ON_BUS_RESET);
+ if (c->direction == CMP_OUTPUT)
+ err = pcr_modify(c, opcr_set_modify, pcr_set_check,
+ ABORT_ON_BUS_RESET);
+ else
+ err = pcr_modify(c, ipcr_set_modify, pcr_set_check,
+ ABORT_ON_BUS_RESET);
+
if (err == -EAGAIN) {
fw_iso_resources_free(&c->resources);
goto retry_after_bus_reset;
@@ -245,8 +335,13 @@ int cmp_connection_update(struct cmp_connection *c)
if (err < 0)
goto err_unconnect;
- err = pcr_modify(c, ipcr_set_modify, pcr_set_check,
- SUCCEED_ON_BUS_RESET);
+ if (c->direction == CMP_OUTPUT)
+ err = pcr_modify(c, opcr_set_modify, pcr_set_check,
+ SUCCEED_ON_BUS_RESET);
+ else
+ err = pcr_modify(c, ipcr_set_modify, pcr_set_check,
+ SUCCEED_ON_BUS_RESET);
+
if (err < 0)
goto err_resources;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 15/38] firewire-lib: Add a new function to check others' connection
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (13 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 14/38] firewire-lib: Add handling output connection by CMP Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 16/38] firewire-lib: Add some AV/C general commands Takashi Sakamoto
` (23 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Plug Control Registers have two fields related to the number of established
connections, one is 'Broadcast connection counter' and another is
'Point-to-point connection counter'. The driver can know there are established
connections or not to check these fields.
This is considering for JACK/FFADO streaming. Currently, when JACK/FFADO starts
its streaming to the device, cmp_connection_establish() is failed expectedly.
This seems to be enough but there are some devices which needs to change
samplling frequency before trying to establish connections. For such devices,
this functionality is needed.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/cmp.c | 18 ++++++++++++++++++
sound/firewire/cmp.h | 1 +
2 files changed, 19 insertions(+)
diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c
index 00b1b2d..354920a 100644
--- a/sound/firewire/cmp.c
+++ b/sound/firewire/cmp.c
@@ -157,6 +157,24 @@ int cmp_connection_init(struct cmp_connection *c,
EXPORT_SYMBOL(cmp_connection_init);
/**
+ * cmp_connection_check_used - check connection is already esablished or not
+ * @c: the connection manager to be checked
+ */
+int cmp_connection_check_used(struct cmp_connection *c, bool *used)
+{
+ __be32 pcr;
+ int err;
+
+ err = snd_fw_transaction(
+ c->resources.unit, TCODE_READ_QUADLET_REQUEST,
+ get_offset(c, false), &pcr, 4, 0);
+ if (err >= 0)
+ *used = (pcr & cpu_to_be32(PCR_BCAST_CONN | PCR_P2P_CONN_MASK));
+ return err;
+}
+EXPORT_SYMBOL(cmp_connection_check_used);
+
+/**
* cmp_connection_destroy - free connection manager resources
* @c: the connection manager
*/
diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h
index 9b58448..ebcb484 100644
--- a/sound/firewire/cmp.h
+++ b/sound/firewire/cmp.h
@@ -38,6 +38,7 @@ int cmp_connection_init(struct cmp_connection *connection,
struct fw_unit *unit,
enum cmp_direction direction,
unsigned int pcr_index);
+int cmp_connection_check_used(struct cmp_connection *connection, bool *used);
void cmp_connection_destroy(struct cmp_connection *connection);
int cmp_connection_establish(struct cmp_connection *connection,
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 16/38] firewire-lib: Add some AV/C general commands
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (14 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 15/38] firewire-lib: Add a new function to check others' connection Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 17/38] firewire-lib: Add quirks for Fireworks Takashi Sakamoto
` (22 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds three commands, which may be used by some firewire device
drivers. These commands are defined in 'AV/C Digital Interface Command Set
General Specification Version 4.2 (2004006, 1394TA)'.
1. PLUG INFO command (10.1)
2. INPUT PLUG SIGNAL FORMAT command (10.10)
3. OUTPUT PLUG SIGNAL FORMAT command (10.11)
By the command 1, the drivers can get the number of plugs for AV/C unit or
subunit.
By the command 2 and 3, the drivers can get/set sampling frequency.
The 'firewire-speakers' already uses INPUT PLUG SIGNAL FORMAT command to set
sampling rate. So this commit also affects the driver.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 24 ++++----
sound/firewire/amdtp.h | 1 +
sound/firewire/fcp.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++
sound/firewire/fcp.h | 21 +++++++
sound/firewire/speakers.c | 44 +++-----------
5 files changed, 193 insertions(+), 48 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 832bf27..fa943f2 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -116,6 +116,17 @@ const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = {
};
EXPORT_SYMBOL(amdtp_syt_intervals);
+const unsigned int amdtp_rate_table[] = {
+ [CIP_SFC_32000] = 32000,
+ [CIP_SFC_44100] = 44100,
+ [CIP_SFC_48000] = 48000,
+ [CIP_SFC_88200] = 88200,
+ [CIP_SFC_96000] = 96000,
+ [CIP_SFC_176400] = 176400,
+ [CIP_SFC_192000] = 192000,
+};
+EXPORT_SYMBOL(amdtp_rate_table);
+
/**
* amdtp_stream_set_parameters - set stream parameters
* @s: the AMDTP stream to configure
@@ -132,15 +143,6 @@ void amdtp_stream_set_parameters(struct amdtp_stream *s,
unsigned int pcm_channels,
unsigned int midi_ports)
{
- static const unsigned int rates[] = {
- [CIP_SFC_32000] = 32000,
- [CIP_SFC_44100] = 44100,
- [CIP_SFC_48000] = 48000,
- [CIP_SFC_88200] = 88200,
- [CIP_SFC_96000] = 96000,
- [CIP_SFC_176400] = 176400,
- [CIP_SFC_192000] = 192000,
- };
unsigned int i, sfc, midi_channels;
midi_channels = DIV_ROUND_UP(midi_ports, 8);
@@ -150,8 +152,8 @@ void amdtp_stream_set_parameters(struct amdtp_stream *s,
WARN_ON(midi_channels > AMDTP_MAX_CHANNELS_FOR_MIDI))
return;
- for (sfc = 0; sfc < CIP_SFC_COUNT; ++sfc)
- if (rates[sfc] == rate)
+ for (sfc = 0; sfc < sizeof(amdtp_rate_table); ++sfc)
+ if (amdtp_rate_table[sfc] == rate)
goto sfc_found;
WARN_ON(1);
return;
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 240de9d..a6f50c7 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -146,6 +146,7 @@ void amdtp_stream_pcm_abort(struct amdtp_stream *s);
bool amdtp_stream_wait_callback(struct amdtp_stream *s);
extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
+extern const unsigned int amdtp_rate_table[CIP_SFC_COUNT];
/**
* amdtp_stream_running - check stream is running or not
diff --git a/sound/firewire/fcp.c b/sound/firewire/fcp.c
index 860c080..c7f205d 100644
--- a/sound/firewire/fcp.c
+++ b/sound/firewire/fcp.c
@@ -10,12 +10,14 @@
#include <linux/firewire-constants.h>
#include <linux/list.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include "fcp.h"
#include "lib.h"
+#include "amdtp.h"
#define CTS_AVC 0x00
@@ -23,6 +25,155 @@
#define ERROR_DELAY_MS 5
#define FCP_TIMEOUT_MS 125
+int avc_general_set_sig_fmt(struct fw_unit *unit, unsigned int rate,
+ enum avc_general_plug_dir dir,
+ unsigned short pid)
+{
+ unsigned int sfc;
+ u8 *buf;
+ bool flag;
+ int err;
+
+ flag = false;
+ for (sfc = 0; sfc < CIP_SFC_COUNT; sfc++) {
+ if (amdtp_rate_table[sfc] == rate) {
+ flag = true;
+ break;
+ }
+ }
+ if (!flag)
+ return -EINVAL;
+
+ buf = kzalloc(8, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x00; /* AV/C CONTROL */
+ buf[1] = 0xff; /* UNIT */
+ if (dir == AVC_GENERAL_PLUG_DIR_IN)
+ buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
+ else
+ buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */
+ buf[3] = 0xff & pid; /* plug id */
+ buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */
+ buf[5] = 0x07 & sfc; /* FDF-hi. AM824, frequency */
+ buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used)*/
+ buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */
+
+ /* do transaction and check buf[1-5] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 8, buf, 8,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
+ if (err < 0)
+ goto end;
+
+ /* check length */
+ if (err != 8) {
+ dev_err(&unit->device, "failed to set sample rate\n");
+ err = -EIO;
+ goto end;
+ }
+
+ /* return response code */
+ err = buf[0];
+end:
+ kfree(buf);
+ return err;
+}
+EXPORT_SYMBOL(avc_general_set_sig_fmt);
+
+int avc_general_get_sig_fmt(struct fw_unit *unit, unsigned int *rate,
+ enum avc_general_plug_dir dir,
+ unsigned short pid)
+{
+ unsigned int sfc;
+ u8 *buf;
+ int err;
+
+ buf = kzalloc(8, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x01; /* AV/C STATUS */
+ buf[1] = 0xff; /* Unit */
+ if (dir == AVC_GENERAL_PLUG_DIR_IN)
+ buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
+ else
+ buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */
+ buf[3] = 0xff & pid; /* plug id */
+ buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */
+ buf[5] = 0xff; /* FDF-hi. AM824, frequency */
+ buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used) */
+ buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */
+
+ /* do transaction and check buf[1-4] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 8, buf, 8,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4));
+ if (err < 0)
+ goto end;
+
+ /* check length */
+ if (err != 8) {
+ dev_err(&unit->device, "failed to get sample rate\n");
+ err = -EIO;
+ goto end;
+ }
+
+ /* check sfc field and pick up rate */
+ sfc = 0x07 & buf[5];
+ if (sfc >= CIP_SFC_COUNT) {
+ err = -EINVAL;
+ goto end;
+ }
+ *rate = amdtp_rate_table[sfc];
+
+ /* return response code */
+ err = buf[0];
+end:
+ kfree(buf);
+ return err;
+}
+EXPORT_SYMBOL(avc_general_get_sig_fmt);
+
+int avc_general_get_plug_info(struct fw_unit *unit, unsigned int subunit_type,
+ unsigned int subunit_id, unsigned int subfunction,
+ u8 info[AVC_PLUG_INFO_BUF_COUNT])
+{
+ u8 *buf;
+ int err;
+
+ buf = kzalloc(8, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x01; /* AV/C STATUS */
+ /* UNIT or Subunit, Functionblock */
+ buf[1] = ((subunit_type & 0x1f) << 3) | (subunit_id & 0x7);
+ buf[2] = 0x02; /* PLUG INFO */
+ buf[3] = 0xff & subfunction;
+
+ err = fcp_avc_transaction(unit, buf, 8, buf, 8, BIT(1) | BIT(2));
+ if (err < 0)
+ goto end;
+
+ /* check length */
+ if (err != 8) {
+ err = -EIO;
+ goto end;
+ }
+
+ info[0] = buf[4];
+ info[1] = buf[5];
+ info[2] = buf[6];
+ info[3] = buf[7];
+
+ /* return response code */
+ err = buf[0];
+end:
+ kfree(buf);
+ return err;
+}
+EXPORT_SYMBOL(avc_general_get_plug_info);
+
static DEFINE_SPINLOCK(transactions_lock);
static LIST_HEAD(transactions);
diff --git a/sound/firewire/fcp.h b/sound/firewire/fcp.h
index 8659568..cb62eb6 100644
--- a/sound/firewire/fcp.h
+++ b/sound/firewire/fcp.h
@@ -1,8 +1,29 @@
#ifndef SOUND_FIREWIRE_FCP_H_INCLUDED
#define SOUND_FIREWIRE_FCP_H_INCLUDED
+#define AVC_PLUG_INFO_BUF_COUNT 4
+
struct fw_unit;
+/*
+ * AV/C Digital Interface Command Set General Specification 4.2
+ * (Sep 2004, 1394TA)
+ */
+enum avc_general_plug_dir {
+ AVC_GENERAL_PLUG_DIR_IN = 0,
+ AVC_GENERAL_PLUG_DIR_OUT = 1,
+ AVC_GENERAL_PLUG_DIR_COUNT
+};
+int avc_general_set_sig_fmt(struct fw_unit *unit, unsigned int rate,
+ enum avc_general_plug_dir dir,
+ unsigned short plug);
+int avc_general_get_sig_fmt(struct fw_unit *unit, unsigned int *rate,
+ enum avc_general_plug_dir dir,
+ unsigned short plug);
+int avc_general_get_plug_info(struct fw_unit *unit, unsigned int subunit_type,
+ unsigned int subunit_id, unsigned int subfunction,
+ u8 info[AVC_PLUG_INFO_BUF_COUNT]);
+
int fcp_avc_transaction(struct fw_unit *unit,
const void *command, unsigned int command_size,
void *response, unsigned int response_size,
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index afbaa55..6b065b1 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -194,42 +194,6 @@ static void fwspk_stop_stream(struct fwspk *fwspk)
}
}
-static int fwspk_set_rate(struct fwspk *fwspk, unsigned int sfc)
-{
- u8 *buf;
- int err;
-
- buf = kmalloc(8, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- buf[0] = 0x00; /* AV/C, CONTROL */
- buf[1] = 0xff; /* unit */
- buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
- buf[3] = 0x00; /* plug 0 */
- buf[4] = 0x90; /* format: audio */
- buf[5] = 0x00 | sfc; /* AM824, frequency */
- buf[6] = 0xff; /* SYT (not used) */
- buf[7] = 0xff;
-
- err = fcp_avc_transaction(fwspk->unit, buf, 8, buf, 8,
- BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
- if (err < 0)
- goto error;
- if (err < 6 || buf[0] != 0x09 /* ACCEPTED */) {
- dev_err(&fwspk->unit->device, "failed to set sample rate\n");
- err = -EIO;
- goto error;
- }
-
- err = 0;
-
-error:
- kfree(buf);
-
- return err;
-}
-
static int fwspk_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
@@ -253,9 +217,15 @@ static int fwspk_hw_params(struct snd_pcm_substream *substream,
amdtp_stream_set_pcm_format(&fwspk->stream,
params_format(hw_params));
- err = fwspk_set_rate(fwspk, fwspk->stream.sfc);
+ err = avc_general_set_sig_fmt(fwspk->unit, params_rate(hw_params),
+ AVC_GENERAL_PLUG_DIR_IN, 0);
if (err < 0)
goto err_buffer;
+ if (err != 0x09 /* ACCEPTED */) {
+ dev_err(&fwspk->unit->device, "failed to set sample rate\n");
+ err = -EIO;
+ goto error;
+ }
return 0;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 17/38] firewire-lib: Add quirks for Fireworks
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (15 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 16/38] firewire-lib: Add some AV/C general commands Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 18/38] fireworks: Add skelton for Fireworks based devices Takashi Sakamoto
` (21 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds three modifications for Echo Audio's Fireworks quirks.
1.Making this module to support both TAG0 and TAG1
In IEC 61883-1, each common isochronous packet (CIP) has 'tag' field in its
packet header. The value is generally 0x01 (CIP header is included = TAG1).
But Fireworks in 'IEC 61883 compliant' mode transmits 'no data' packet with
0x00 (No CIP header is included = TAG0) but the packet includes CIP structure.
To process 'presentation timestamp' for duplex streams synchronization
correctly, this packets needs to be handled.
2.Making this module to calculate data block size and not to check continuity
One of Fireworks device, AudioFirePre8, always reports 8 data block size in
in-packets and the data block counter is incremented by 8. But actual value is
wrong.
3.Making this module to have the numebr of first data blocks for MIDI messages
in out-packet
Fireworks can pick up MIDI messages in first 8 data blocks and ignore in other
data blocks.
I confirm these quirks in firmware version 4.8 to 5.8 for Windows. I didn't
investigate for the other versions. But according to contact person in Echo
Audio, there is no differences between firmwares installed by Windows or OS X.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/amdtp.c | 50 +++++++++++++++++++++++++-------------------------
sound/firewire/amdtp.h | 2 ++
2 files changed, 27 insertions(+), 25 deletions(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index fa943f2..7380967 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -89,6 +89,8 @@ int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
s->sort_table = NULL;
s->left_packets = NULL;
+ s->blocks_for_midi = UINT_MAX;
+
return 0;
}
EXPORT_SYMBOL(amdtp_stream_init);
@@ -557,8 +559,14 @@ static void amdtp_fill_midi(struct amdtp_stream *s,
buffer[s->midi_position] = 0x00;
b = (u8 *)&buffer[s->midi_position];
+ /*
+ * NOTE:
+ * Fireworks ignores midi messages in more than first 8
+ * data blocks of an packet.
+ */
port = (s->data_block_counter + f) % 8;
- if ((s->midi[port] == NULL) ||
+ if ((f >= s->blocks_for_midi) ||
+ (s->midi[port] == NULL) ||
(snd_rawmidi_transmit(s->midi[port], b + 1, 1) <= 0)) {
b[0] = 0x80;
b[1] = 0x00; /* confirm to be zero */
@@ -711,7 +719,7 @@ static void handle_in_packet(struct amdtp_stream *s,
__be32 *buffer)
{
u32 cip_header[2];
- unsigned int data_block_quadlets, data_blocks, data_block_counter;
+ unsigned int data_blocks;
struct snd_pcm_substream *pcm;
cip_header[0] = be32_to_cpu(buffer[0]);
@@ -736,27 +744,16 @@ static void handle_in_packet(struct amdtp_stream *s,
AMDTP_FDF_NO_DATA))
return;
- data_block_quadlets =
- (cip_header[1] & AMDTP_DBS_MASK) >> AMDTP_DBS_SHIFT;
- /* avoid division by zero */
- if (data_block_quadlets == 0) {
- dev_info_ratelimited(&s->unit->device,
- "Detect invalid value in dbs field: %08X\n",
- data_block_quadlets);
- return;
- }
-
- data_blocks = (payload_quadlets - 2) / data_block_quadlets;
- data_block_counter = cip_header[1] & AMDTP_DBC_MASK;
-
- /* check packet continuity */
- s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff;
- if (s->data_block_counter != data_block_counter) {
- dev_info_ratelimited(&s->unit->device,
- "Detect uncontinuity of CIP packets\n");
- s->data_block_counter = data_block_counter;
- return;
- }
+ /*
+ * This module don't use the value of dbs and dbc beceause Echo
+ * AudioFirePre8 reports inappropriate value.
+ *
+ * This model always reports a fixed value "8" as data block size at
+ * any sampling rates but actually data block size is different.
+ * Additionally the value of data block count always incremented by
+ * "8" at any sampling rates but actually it's different.
+ */
+ data_blocks = (payload_quadlets - 2) / s->data_block_quadlets;
buffer += 2;
@@ -1036,11 +1033,14 @@ int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
goto err_context;
} while (s->packet_index > 0);
- /* NOTE: TAG1 matches CIP. This just affects in stream */
+ /*
+ * NOTE: TAG1 matches CIP. This just affects in stream.
+ * Fireworks transmits NODATA packets with TAG0.
+ */
s->data_block_counter = 0;
s->callbacked = false;
err = fw_iso_context_start(s->context, -1, 0,
- FW_ISO_CONTEXT_MATCH_TAG1);
+ FW_ISO_CONTEXT_MATCH_TAG0 | FW_ISO_CONTEXT_MATCH_TAG1);
if (err < 0)
goto err_context;
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index a6f50c7..c601aeb 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -113,6 +113,8 @@ struct amdtp_stream {
bool pointer_flush;
struct snd_rawmidi_substream *midi[AMDTP_MAX_CHANNELS_FOR_MIDI * 8];
+ /* quirk: the first count of data blocks in an AMDTP packet for MIDI */
+ unsigned int blocks_for_midi;
bool callbacked;
wait_queue_head_t callback_wait;
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 18/38] fireworks: Add skelton for Fireworks based devices
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (16 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 17/38] firewire-lib: Add quirks for Fireworks Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 19/38] fireworks: Add transaction and some commands Takashi Sakamoto
` (20 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds a new driver with no functionality. This driver just
creates/removes card instance according to callbacks.
Fireworks is a board module which Echo Audio produced. This module consists
of three chipsets:
- Communication chipset for IEEE1394 PHY/Link and IEC 61883-1/6
- DSP or/and FPGA for signal processing
- Flash Memory to store firmwares
Current supported devices:
- Mackie Onyx 400F/1200F
- Echo AudioFire12/8(until 2009 July)
- Echo AudioFire2/4/Pre8/8(since 2009 July)
- Echo Fireworks 8/HDMI
- Gibson Robot Interface pack/GoldTop
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 15 +++
sound/firewire/Makefile | 1 +
sound/firewire/fireworks/Makefile | 2 +
sound/firewire/fireworks/fireworks.c | 185 +++++++++++++++++++++++++++++++++++
sound/firewire/fireworks/fireworks.h | 42 ++++++++
5 files changed, 245 insertions(+)
create mode 100644 sound/firewire/fireworks/Makefile
create mode 100644 sound/firewire/fireworks/fireworks.c
create mode 100644 sound/firewire/fireworks/fireworks.h
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index b3e274f..0b85ebd 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -61,4 +61,19 @@ config SND_SCS1X
To compile this driver as a module, choose M here: the module
will be called snd-scs1x.
+config SND_FIREWORKS
+ tristate "Echo Fireworks board module support"
+ select SND_FIREWIRE_LIB
+ help
+ Say Y here to include support for FireWire devices based
+ on Echo Digital Audio Fireworks board:
+ * Mackie Onyx 400F/1200F
+ * Echo AudioFire12/8(until 2009 July)
+ * Echo AudioFire2/4/Pre8/8(since 2009 July)
+ * Echo Fireworks 8/HDMI
+ * Gibson Robot Interface Pack/GoldTop
+
+ To compile this driver as a module, choose M here: the module
+ will be called snd-fireworks.
+
endif # SND_FIREWIRE
diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile
index 5099550..5cd39dc 100644
--- a/sound/firewire/Makefile
+++ b/sound/firewire/Makefile
@@ -10,3 +10,4 @@ obj-$(CONFIG_SND_DICE) += snd-dice.o
obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o
obj-$(CONFIG_SND_ISIGHT) += snd-isight.o
obj-$(CONFIG_SND_SCS1X) += snd-scs1x.o
+obj-$(CONFIG_SND_FIREWORKS) += fireworks/
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
new file mode 100644
index 0000000..99f6fc3
--- /dev/null
+++ b/sound/firewire/fireworks/Makefile
@@ -0,0 +1,2 @@
+snd-fireworks-objs := fireworks.o
+obj-m += snd-fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
new file mode 100644
index 0000000..aa85056
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks.c
@@ -0,0 +1,185 @@
+/*
+ * fireworks.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2009-2010 Clemens Ladisch
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+/*
+ * Fireworks is a board module which Echo Audio produced. This module consists
+ * of three chipsets:
+ * - Communication chipset for IEEE1394 PHY/Link and IEC 61883-1/6
+ * - DSP or/and FPGA for signal processing
+ * - Flash Memory to store firmwares
+ */
+
+#include "fireworks.h"
+
+MODULE_DESCRIPTION("Echo Fireworks driver");
+MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
+MODULE_LICENSE("GPL v2");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "card index");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "enable Fireworks sound card");
+
+static DEFINE_MUTEX(devices_mutex);
+static unsigned int devices_used;
+
+#define VENDOR_LOUD 0x000ff2
+#define MODEL_MACKIE_400F 0x00400f
+#define MODEL_MACKIE_1200F 0x01200f
+
+#define VENDOR_ECHO 0x001486
+#define MODEL_ECHO_AUDIOFIRE_12 0x00af12
+#define MODEL_ECHO_AUDIOFIRE_12HD 0x0af12d
+#define MODEL_ECHO_AUDIOFIRE_12_APPLE 0x0af12a
+/* This is applied for AudioFire8 (until 2009 July) */
+#define MODEL_ECHO_AUDIOFIRE_8 0x000af8
+#define MODEL_ECHO_AUDIOFIRE_2 0x000af2
+#define MODEL_ECHO_AUDIOFIRE_4 0x000af4
+/* AudioFire9 is applied for AudioFire8(since 2009 July) and AudioFirePre8 */
+#define MODEL_ECHO_AUDIOFIRE_9 0x000af9
+/* unknown as product */
+#define MODEL_ECHO_FIREWORKS_8 0x0000f8
+#define MODEL_ECHO_FIREWORKS_HDMI 0x00afd1
+
+#define VENDOR_GIBSON 0x00075b
+/* for Robot Interface Pack of Dark Fire, Dusk Tiger, Les Paul Standard 2010 */
+#define MODEL_GIBSON_RIP 0x00afb2
+/* unknown as product */
+#define MODEL_GIBSON_GOLDTOP 0x00afb9
+
+static void
+efw_card_free(struct snd_card *card)
+{
+ struct snd_efw *efw = card->private_data;
+
+ if (efw->card_index >= 0) {
+ mutex_lock(&devices_mutex);
+ devices_used &= ~BIT(efw->card_index);
+ mutex_unlock(&devices_mutex);
+ }
+
+ mutex_destroy(&efw->mutex);
+
+ return;
+}
+
+static int
+efw_probe(struct fw_unit *unit,
+ const struct ieee1394_device_id *entry)
+{
+ struct snd_card *card;
+ struct snd_efw *efw;
+ int card_index, err;
+
+ mutex_lock(&devices_mutex);
+
+ /* check registered cards */
+ for (card_index = 0; card_index < SNDRV_CARDS; ++card_index)
+ if (!(devices_used & BIT(card_index)) && enable[card_index])
+ break;
+ if (card_index >= SNDRV_CARDS) {
+ err = -ENOENT;
+ goto end;
+ }
+
+ err = snd_card_create(index[card_index], id[card_index],
+ THIS_MODULE, sizeof(struct snd_efw), &card);
+ if (err < 0)
+ goto end;
+ card->private_free = efw_card_free;
+
+ efw = card->private_data;
+ efw->card = card;
+ efw->device = fw_parent_device(unit);
+ efw->unit = unit;
+ efw->card_index = -1;
+ mutex_init(&efw->mutex);
+ spin_lock_init(&efw->lock);
+
+ strcpy(efw->card->driver, "Fireworks");
+ strcpy(efw->card->shortname, "Fireworks");
+ strcpy(efw->card->longname, "Fireworks");
+ strcpy(efw->card->mixername, "Fireworks");
+
+ snd_card_set_dev(card, &unit->device);
+ err = snd_card_register(card);
+ if (err < 0) {
+ snd_card_free(card);
+ goto end;
+ }
+ dev_set_drvdata(&unit->device, efw);
+ devices_used |= BIT(card_index);
+ efw->card_index = card_index;
+end:
+ mutex_unlock(&devices_mutex);
+ return err;
+}
+
+static void efw_update(struct fw_unit *unit)
+{
+ return;
+}
+
+static void efw_remove(struct fw_unit *unit)
+{
+ struct snd_efw *efw = dev_get_drvdata(&unit->device);
+ snd_card_disconnect(efw->card);
+ snd_card_free_when_closed(efw->card);
+ return;
+}
+
+static const struct ieee1394_device_id efw_id_table[] = {
+ SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_400F),
+ SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_1200F),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_8),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12HD),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12_APPLE),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_2),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_4),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_9),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_8),
+ SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_HDMI),
+ SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_RIP),
+ SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_GOLDTOP),
+ {}
+};
+MODULE_DEVICE_TABLE(ieee1394, efw_id_table);
+
+static struct fw_driver efw_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "snd-fireworks",
+ .bus = &fw_bus_type,
+ },
+ .probe = efw_probe,
+ .update = efw_update,
+ .remove = efw_remove,
+ .id_table = efw_id_table,
+};
+
+static int __init snd_efw_init(void)
+{
+ return driver_register(&efw_driver.driver);
+}
+
+static void __exit snd_efw_exit(void)
+{
+ driver_unregister(&efw_driver.driver);
+ mutex_destroy(&devices_mutex);
+}
+
+module_init(snd_efw_init);
+module_exit(snd_efw_exit);
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
new file mode 100644
index 0000000..8cddef0
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks.h
@@ -0,0 +1,42 @@
+/*
+ * fireworks.h - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2009-2010 Clemens Ladisch
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+#ifndef SOUND_FIREWORKS_H_INCLUDED
+#define SOUND_FIREWORKS_H_INCLUDED
+
+#include <linux/compat.h>
+#include <linux/device.h>
+#include <linux/firewire.h>
+#include <linux/firewire-constants.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/initval.h>
+
+struct snd_efw {
+ struct snd_card *card;
+ struct fw_device *device;
+ struct fw_unit *unit;
+ int card_index;
+
+ struct mutex mutex;
+ spinlock_t lock;
+};
+
+#define SND_EFW_DEV_ENTRY(vendor, model) \
+{ \
+ .match_flags = IEEE1394_MATCH_VENDOR_ID | \
+ IEEE1394_MATCH_MODEL_ID, \
+ .vendor_id = vendor,\
+ .model_id = model \
+}
+
+#endif
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 19/38] fireworks: Add transaction and some commands
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (17 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 18/38] fireworks: Add skelton for Fireworks based devices Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 20/38] fireworks: Add connection and stream management Takashi Sakamoto
` (19 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Fireworks uses own command and response. This commit adds functionality to
transact and adds some commands required for sound card instance and kernel
streaming.
There are two ways to deliver substance of this transaction:
1.AV/C vendor dependent command for command/response
2.Async transaction to specific addresses for command/response
By way 1, I confirm AudioFire12 cannot correctly response to some commands with
firmware version 5.0 or later. This is also confirmed by FFADO. So this module
implement way 2.
The address for response gives an issue. When this driver allocate own callback
function into the address, then no one can allocate its own callback function.
This situation is not good for applications in user-land. Currently this commit
don't solve this issue. This issue is solved in later commit.
I note there is a command to change the address for response if the device
supports. But this module uses default value. So users should not execute this
command as long as hoping this module works correctly.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/fireworks/Makefile | 2 +-
sound/firewire/fireworks/fireworks.c | 73 ++++-
sound/firewire/fireworks/fireworks.h | 120 +++++++
sound/firewire/fireworks/fireworks_command.c | 395 +++++++++++++++++++++++
sound/firewire/fireworks/fireworks_transaction.c | 191 +++++++++++
5 files changed, 771 insertions(+), 10 deletions(-)
create mode 100644 sound/firewire/fireworks/fireworks_command.c
create mode 100644 sound/firewire/fireworks/fireworks_transaction.c
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
index 99f6fc3..a6ce214 100644
--- a/sound/firewire/fireworks/Makefile
+++ b/sound/firewire/fireworks/Makefile
@@ -1,2 +1,2 @@
-snd-fireworks-objs := fireworks.o
+snd-fireworks-objs := fireworks_transaction.o fireworks_command.o fireworks.o
obj-m += snd-fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index aa85056..d821176 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -59,6 +59,45 @@ static unsigned int devices_used;
/* unknown as product */
#define MODEL_GIBSON_GOLDTOP 0x00afb9
+/* part of hardware capability flags */
+#define FLAG_RESP_ADDR_CHANGABLE 0
+
+static int
+get_hardware_info(struct snd_efw *efw)
+{
+ struct snd_efw_hwinfo *hwinfo;
+ char version[12] = {0};
+ int err;
+
+ hwinfo = kzalloc(sizeof(struct snd_efw_hwinfo), GFP_KERNEL);
+ if (hwinfo == NULL)
+ return -ENOMEM;
+
+ err = snd_efw_command_get_hwinfo(efw, hwinfo);
+ if (err < 0)
+ goto end;
+
+ /* firmware version for communication chipset */
+ err = sprintf(version, "%u.%u",
+ (hwinfo->arm_version >> 24) & 0xff,
+ (hwinfo->arm_version >> 16) & 0xff);
+
+ strcpy(efw->card->driver, "Fireworks");
+ strcpy(efw->card->shortname, hwinfo->model_name);
+ snprintf(efw->card->longname, sizeof(efw->card->longname),
+ "%s %s v%s, GUID %08x%08x at %s, S%d",
+ hwinfo->vendor_name, hwinfo->model_name, version,
+ hwinfo->guid_hi, hwinfo->guid_lo,
+ dev_name(&efw->unit->device), 100 << efw->device->max_speed);
+ strcpy(efw->card->mixername, hwinfo->model_name);
+
+ if (hwinfo->flags & BIT(FLAG_RESP_ADDR_CHANGABLE))
+ efw->resp_addr_changable = true;
+end:
+ kfree(hwinfo);
+ return err;
+}
+
static void
efw_card_free(struct snd_card *card)
{
@@ -108,27 +147,31 @@ efw_probe(struct fw_unit *unit,
mutex_init(&efw->mutex);
spin_lock_init(&efw->lock);
- strcpy(efw->card->driver, "Fireworks");
- strcpy(efw->card->shortname, "Fireworks");
- strcpy(efw->card->longname, "Fireworks");
- strcpy(efw->card->mixername, "Fireworks");
+ err = get_hardware_info(efw);
+ if (err < 0)
+ goto error;
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
- if (err < 0) {
- snd_card_free(card);
- goto end;
- }
+ if (err < 0)
+ goto error;
+
dev_set_drvdata(&unit->device, efw);
devices_used |= BIT(card_index);
efw->card_index = card_index;
end:
mutex_unlock(&devices_mutex);
return err;
+error:
+ snd_card_free(card);
+ mutex_unlock(&devices_mutex);
+ return err;
}
static void efw_update(struct fw_unit *unit)
{
+ struct snd_efw *efw = dev_get_drvdata(&unit->device);
+ snd_efw_transaction_bus_reset(efw->unit);
return;
}
@@ -172,11 +215,23 @@ static struct fw_driver efw_driver = {
static int __init snd_efw_init(void)
{
- return driver_register(&efw_driver.driver);
+ int err;
+
+ err = snd_efw_transaction_register();
+ if (err < 0)
+ goto end;
+
+ err = driver_register(&efw_driver.driver);
+ if (err < 0)
+ snd_efw_transaction_unregister();
+
+end:
+ return err;
}
static void __exit snd_efw_exit(void)
{
+ snd_efw_transaction_unregister();
driver_unregister(&efw_driver.driver);
mutex_destroy(&devices_mutex);
}
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 8cddef0..fae074c 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -20,6 +20,19 @@
#include <sound/core.h>
#include <sound/initval.h>
+#include <sound/pcm.h>
+
+#include "../cmp.h"
+#include "../lib.h"
+
+#define SND_EFW_MUITIPLIER_MODES 3
+#define HWINFO_NAME_SIZE_BYTES 32
+#define HWINFO_MAX_CAPS_GROUPS 8
+
+struct snd_efw_phys_grp {
+ u8 type; /* see enum snd_efw_grp_type */
+ u8 count;
+} __packed;
struct snd_efw {
struct snd_card *card;
@@ -29,7 +42,114 @@ struct snd_efw {
struct mutex mutex;
spinlock_t lock;
+
+ /* for transaction */
+ u32 seqnum;
+ bool resp_addr_changable;
+};
+
+struct snd_efw_transaction {
+ u32 length;
+ u32 version;
+ u32 seqnum;
+ u32 category;
+ u32 command;
+ u32 status;
+ u32 params[0];
+};
+int snd_efw_transaction_run(struct fw_unit *unit,
+ const void *cmd, unsigned int cmd_size,
+ void *resp, unsigned int resp_size, u32 seqnum);
+int snd_efw_transaction_register(void);
+void snd_efw_transaction_unregister(void);
+void snd_efw_transaction_bus_reset(struct fw_unit *unit);
+
+struct snd_efw_hwinfo {
+ u32 flags;
+ u32 guid_hi;
+ u32 guid_lo;
+ u32 type;
+ u32 version;
+ char vendor_name[HWINFO_NAME_SIZE_BYTES];
+ char model_name[HWINFO_NAME_SIZE_BYTES];
+ u32 supported_clocks;
+ u32 amdtp_rx_pcm_channels;
+ u32 amdtp_tx_pcm_channels;
+ u32 phys_out;
+ u32 phys_in;
+ u32 phys_out_grp_count;
+ struct snd_efw_phys_grp phys_out_grps[HWINFO_MAX_CAPS_GROUPS];
+ u32 phys_in_grp_count;
+ struct snd_efw_phys_grp phys_in_grps[HWINFO_MAX_CAPS_GROUPS];
+ u32 midi_out_ports;
+ u32 midi_in_ports;
+ u32 max_sample_rate;
+ u32 min_sample_rate;
+ u32 dsp_version;
+ u32 arm_version;
+ u32 mixer_playback_channels;
+ u32 mixer_capture_channels;
+ u32 fpga_version;
+ u32 amdtp_rx_pcm_channels_2x;
+ u32 amdtp_tx_pcm_channels_2x;
+ u32 amdtp_rx_pcm_channels_4x;
+ u32 amdtp_tx_pcm_channels_4x;
+ u32 reserved[16];
+} __packed;
+enum snd_efw_grp_type {
+ SND_EFW_CH_TYPE_ANALOG = 0,
+ SND_EFW_CH_TYPE_SPDIF = 1,
+ SND_EFW_CH_TYPE_ADAT = 2,
+ SND_EFW_CH_TYPE_SPDIF_OR_ADAT = 3,
+ SND_EFW_CH_TYPE_ANALOG_MIRRORING = 4,
+ SND_EFW_CH_TYPE_HEADPHONES = 5,
+ SND_EFW_CH_TYPE_I2S = 6,
+ SND_EFW_CH_TYPE_GUITAR = 7,
+ SND_EFW_CH_TYPE_PIEZO_GUITAR = 8,
+ SND_EFW_CH_TYPE_GUITAR_STRING = 9,
+ SND_EFW_CH_TYPE_VIRTUAL = 0x10000,
+ SND_EFW_CH_TYPE_DUMMY
+};
+struct snd_efw_phys_meters {
+ u32 status; /* guitar state/midi signal/clock input detect */
+ u32 reserved0;
+ u32 reserved1;
+ u32 reserved2;
+ u32 reserved3;
+ u32 out_meters;
+ u32 in_meters;
+ u32 reserved4;
+ u32 reserved5;
+ u32 values[0];
+} __packed;
+enum snd_efw_clock_source {
+ SND_EFW_CLOCK_SOURCE_INTERNAL = 0,
+ SND_EFW_CLOCK_SOURCE_SYTMATCH = 1,
+ SND_EFW_CLOCK_SOURCE_WORDCLOCK = 2,
+ SND_EFW_CLOCK_SOURCE_SPDIF = 3,
+ SND_EFW_CLOCK_SOURCE_ADAT_1 = 4,
+ SND_EFW_CLOCK_SOURCE_ADAT_2 = 5,
+ SND_EFW_CLOCK_SOURCE_CONTINUOUS = 6 /* internal variable clock */
+};
+enum snd_efw_transport_mode {
+ SND_EFW_TRANSPORT_MODE_WINDOWS = 0,
+ SND_EFW_TRANSPORT_MODE_IEC61883 = 1,
};
+int snd_efw_command_identify(struct snd_efw *efw);
+int snd_efw_command_set_resp_addr(struct snd_efw *efw,
+ u16 addr_high, u32 addr_low);
+int snd_efw_command_set_tx_mode(struct snd_efw *efw, unsigned int mode);
+int snd_efw_command_get_hwinfo(struct snd_efw *efw,
+ struct snd_efw_hwinfo *hwinfo);
+int snd_efw_command_get_phys_meters(struct snd_efw *efw,
+ struct snd_efw_phys_meters *meters,
+ unsigned int len);
+int snd_efw_command_get_clock_source(struct snd_efw *efw,
+ enum snd_efw_clock_source *source);
+int snd_efw_command_set_clock_source(struct snd_efw *efw,
+ enum snd_efw_clock_source source);
+int snd_efw_command_get_sampling_rate(struct snd_efw *efw, unsigned int *rate);
+int snd_efw_command_set_sampling_rate(struct snd_efw *efw, unsigned int rate);
#define SND_EFW_DEV_ENTRY(vendor, model) \
{ \
diff --git a/sound/firewire/fireworks/fireworks_command.c b/sound/firewire/fireworks/fireworks_command.c
new file mode 100644
index 0000000..9b19e3e
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks_command.c
@@ -0,0 +1,395 @@
+/*
+ * fireworks_command.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto <o-takashi@sakmocchi.jp>
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./fireworks.h"
+
+/*
+ * This driver uses transaction version 1 or later to use extended hardware
+ * information. Then too old devices are not available.
+ *
+ * Each commands are not required to have continuous sequence numbers. This
+ * number is just used to match command and response.
+ *
+ * This module support a part of commands. Please see FFADO if you want to see
+ * whole commands. But there are some commands which FFADO don't implement.
+ *
+ * Fireworks also supports AV/C general commands and AV/C Stream Format
+ * Information commands. But this module don't use them.
+ */
+
+#define EFW_TRANSACTION_SEQNUM_MAX ((u32)~0)
+
+/* for clock source and sampling rate */
+struct efc_clock {
+ u32 source;
+ u32 sampling_rate;
+ u32 index;
+};
+
+/* command categories */
+enum efc_category {
+ EFC_CAT_HWINFO = 0,
+ EFC_CAT_TRANSPORT = 2,
+ EFC_CAT_HWCTL = 3,
+};
+
+/* hardware info category commands */
+enum efc_cmd_hwinfo {
+ EFC_CMD_HWINFO_GET_CAPS = 0,
+ EFC_CMD_HWINFO_GET_POLLED = 1,
+ EFC_CMD_HWINFO_SET_RESP_ADDR = 2
+};
+
+enum efc_cmd_transport {
+ EFC_CMD_TRANSPORT_SET_TX_MODE = 0
+};
+
+/* hardware control category commands */
+enum efc_cmd_hwctl {
+ EFC_CMD_HWCTL_SET_CLOCK = 0,
+ EFC_CMD_HWCTL_GET_CLOCK = 1,
+ EFC_CMD_HWCTL_IDENTIFY = 5
+};
+
+/* return values in response */
+enum efr_status {
+ EFC_RETVAL_OK = 0,
+ EFC_RETVAL_BAD = 1,
+ EFC_RETVAL_BAD_COMMAND = 2,
+ EFC_RETVAL_COMM_ERR = 3,
+ EFC_RETVAL_BAD_QUAD_COUNT = 4,
+ EFC_RETVAL_UNSUPPORTED = 5,
+ EFC_RETVAL_1394_TIMEOUT = 6,
+ EFC_RETVAL_DSP_TIMEOUT = 7,
+ EFC_RETVAL_BAD_RATE = 8,
+ EFC_RETVAL_BAD_CLOCK = 9,
+ EFC_RETVAL_BAD_CHANNEL = 10,
+ EFC_RETVAL_BAD_PAN = 11,
+ EFC_RETVAL_FLASH_BUSY = 12,
+ EFC_RETVAL_BAD_MIRROR = 13,
+ EFC_RETVAL_BAD_LED = 14,
+ EFC_RETVAL_BAD_PARAMETER = 15,
+ EFC_RETVAL_INCOMPLETE = 0x80000000
+};
+
+static const char *const efr_status_names[] = {
+ [EFC_RETVAL_OK] = "OK",
+ [EFC_RETVAL_BAD] = "bad",
+ [EFC_RETVAL_BAD_COMMAND] = "bad command",
+ [EFC_RETVAL_COMM_ERR] = "comm err",
+ [EFC_RETVAL_BAD_QUAD_COUNT] = "bad quad count",
+ [EFC_RETVAL_UNSUPPORTED] = "unsupported",
+ [EFC_RETVAL_1394_TIMEOUT] = "1394 timeout",
+ [EFC_RETVAL_DSP_TIMEOUT] = "DSP timeout",
+ [EFC_RETVAL_BAD_RATE] = "bad rate",
+ [EFC_RETVAL_BAD_CLOCK] = "bad clock",
+ [EFC_RETVAL_BAD_CHANNEL] = "bad channel",
+ [EFC_RETVAL_BAD_PAN] = "bad pan",
+ [EFC_RETVAL_FLASH_BUSY] = "flash busy",
+ [EFC_RETVAL_BAD_MIRROR] = "bad mirror",
+ [EFC_RETVAL_BAD_LED] = "bad LED",
+ [EFC_RETVAL_BAD_PARAMETER] = "bad parameter",
+ [EFC_RETVAL_BAD_PARAMETER + 1] = "incomplete"
+};
+
+static int
+efw_transaction(struct snd_efw *efw, unsigned int category,
+ unsigned int command,
+ const __be32 *params, unsigned int param_quads,
+ const __be32 *resp, unsigned int resp_quads)
+{
+ struct snd_efw_transaction *header;
+ __be32 *buf;
+ u32 seqnum;
+ unsigned int i, buf_bytes, cmd_bytes;
+ int err;
+
+ /* calculate buffer size*/
+ buf_bytes = sizeof(struct snd_efw_transaction) +
+ max(param_quads, resp_quads) * sizeof(u32);
+
+ /* keep buffer */
+ buf = kzalloc(buf_bytes, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ /* to keep consistency of sequence number */
+ spin_lock(&efw->lock);
+ if (efw->seqnum + 1 >= EFW_TRANSACTION_SEQNUM_MAX)
+ efw->seqnum = 0;
+ else
+ efw->seqnum += 2;
+ seqnum = efw->seqnum;
+ spin_unlock(&efw->lock);
+
+ /* fill transaction header fields */
+ cmd_bytes = sizeof(struct snd_efw_transaction) +
+ param_quads * sizeof(u32);
+ header = (struct snd_efw_transaction *)buf;
+ header->length = cmd_bytes / sizeof(u32);
+ header->version = 1;
+ header->seqnum = seqnum;
+ header->category = category;
+ header->command = command;
+ header->status = 0;
+ for (i = 0; i < sizeof(struct snd_efw_transaction) / sizeof(u32); i++)
+ cpu_to_be32s(&buf[i]);
+
+ /* fill transaction command parameters */
+ for (i = 0; i < param_quads; i++)
+ header->params[i] = params[i];
+
+ err = snd_efw_transaction_run(efw->unit, buf, cmd_bytes,
+ buf, buf_bytes, seqnum);
+ if (err < 0)
+ goto end;
+
+ /* check transaction header fields */
+ for (i = 0; i < sizeof(struct snd_efw_transaction) / sizeof(u32); i++)
+ be32_to_cpus(&buf[i]);
+ if ((header->version < 1) ||
+ (header->category != category) ||
+ (header->command != command) ||
+ (header->status != EFC_RETVAL_OK)) {
+ dev_err(&efw->unit->device, "EFC failed [%u/%u]: %s\n",
+ header->category, header->command,
+ efr_status_names[header->status]);
+ err = -EIO;
+ goto end;
+ }
+
+ /* fill transaction response parameters */
+ if (resp != NULL) {
+ memset((void *)resp, 0, resp_quads * sizeof(u32));
+ resp_quads = min_t(unsigned int, resp_quads,
+ header->length -
+ sizeof(struct snd_efw_transaction) /
+ sizeof(u32));
+ memcpy((void *)resp, &buf[6], resp_quads * sizeof(u32));
+ }
+end:
+ kfree(buf);
+ return err;
+}
+
+/* just blink LEDs on the device */
+int snd_efw_command_identify(struct snd_efw *efw)
+{
+ return efw_transaction(efw, EFC_CAT_HWCTL,
+ EFC_CMD_HWCTL_IDENTIFY,
+ NULL, 0, NULL, 0);
+}
+
+/*
+ * The address in host system for EFC response is changable when the device
+ * supports. struct hwinfo.flags includes its flag. The default is
+ * INITIAL_MEMORY_SPACE_EFC_RESPONSE
+ */
+int snd_efw_command_set_resp_addr(struct snd_efw *efw,
+ u16 addr_high, u32 addr_low)
+{
+ __be32 addr[2];
+
+ addr[0] = cpu_to_be32(addr_high);
+ addr[1] = cpu_to_be32(addr_low);
+
+ if (!efw->resp_addr_changable)
+ return -ENOSYS;
+
+ return efw_transaction(efw, EFC_CAT_HWCTL,
+ EFC_CMD_HWINFO_SET_RESP_ADDR,
+ addr, 2, NULL, 0);
+}
+
+/*
+ * This is for timestamp processing. In Windows mode, all 32bit fields of second
+ * CIP header in AMDTP transmit packet is used for 'presentation timestamp'. In
+ * 'no data' packet the value of this field is 0x90ffffff.
+ */
+int snd_efw_command_set_tx_mode(struct snd_efw *efw,
+ enum snd_efw_transport_mode mode)
+{
+ __be32 param = cpu_to_be32(mode);
+ return efw_transaction(efw, EFC_CAT_TRANSPORT,
+ EFC_CMD_TRANSPORT_SET_TX_MODE,
+ ¶m, 1, NULL, 0);
+}
+
+int snd_efw_command_get_hwinfo(struct snd_efw *efw,
+ struct snd_efw_hwinfo *hwinfo)
+{
+ int err;
+
+ err = efw_transaction(efw, EFC_CAT_HWINFO,
+ EFC_CMD_HWINFO_GET_CAPS,
+ NULL, 0, (__be32 *)hwinfo,
+ sizeof(*hwinfo) / sizeof(u32));
+ if (err < 0)
+ goto end;
+
+ be32_to_cpus(&hwinfo->flags);
+ be32_to_cpus(&hwinfo->guid_hi);
+ be32_to_cpus(&hwinfo->guid_lo);
+ be32_to_cpus(&hwinfo->type);
+ be32_to_cpus(&hwinfo->version);
+ be32_to_cpus(&hwinfo->supported_clocks);
+ be32_to_cpus(&hwinfo->amdtp_rx_pcm_channels);
+ be32_to_cpus(&hwinfo->amdtp_tx_pcm_channels);
+ be32_to_cpus(&hwinfo->phys_out);
+ be32_to_cpus(&hwinfo->phys_in);
+ be32_to_cpus(&hwinfo->phys_out_grp_count);
+ be32_to_cpus(&hwinfo->phys_in_grp_count);
+ be32_to_cpus(&hwinfo->midi_out_ports);
+ be32_to_cpus(&hwinfo->midi_in_ports);
+ be32_to_cpus(&hwinfo->max_sample_rate);
+ be32_to_cpus(&hwinfo->min_sample_rate);
+ be32_to_cpus(&hwinfo->dsp_version);
+ be32_to_cpus(&hwinfo->arm_version);
+ be32_to_cpus(&hwinfo->mixer_playback_channels);
+ be32_to_cpus(&hwinfo->mixer_capture_channels);
+ be32_to_cpus(&hwinfo->fpga_version);
+ be32_to_cpus(&hwinfo->amdtp_rx_pcm_channels_2x);
+ be32_to_cpus(&hwinfo->amdtp_tx_pcm_channels_2x);
+ be32_to_cpus(&hwinfo->amdtp_rx_pcm_channels_4x);
+ be32_to_cpus(&hwinfo->amdtp_tx_pcm_channels_4x);
+
+ /* ensure terminated */
+ hwinfo->vendor_name[HWINFO_NAME_SIZE_BYTES - 1] = '\0';
+ hwinfo->model_name[HWINFO_NAME_SIZE_BYTES - 1] = '\0';
+end:
+ return err;
+}
+
+int snd_efw_command_get_phys_meters(struct snd_efw *efw,
+ struct snd_efw_phys_meters *meters,
+ unsigned int len)
+{
+ __be32 *buf = (__be32 *)meters;
+ unsigned int i;
+ int err;
+
+ err = efw_transaction(efw, EFC_CAT_HWINFO,
+ EFC_CMD_HWINFO_GET_POLLED,
+ NULL, 0, (__be32 *)meters, len / sizeof(u32));
+ if (err >= 0)
+ for (i = 0; i < len / sizeof(u32); i++)
+ be32_to_cpus(&buf[i]);
+
+ return err;
+}
+
+static int
+command_get_clock(struct snd_efw *efw, struct efc_clock *clock)
+{
+ int err;
+
+ err = efw_transaction(efw, EFC_CAT_HWCTL,
+ EFC_CMD_HWCTL_GET_CLOCK,
+ NULL, 0,
+ (__be32 *)clock,
+ sizeof(struct efc_clock) / sizeof(u32));
+ if (err >= 0) {
+ be32_to_cpus(&clock->source);
+ be32_to_cpus(&clock->sampling_rate);
+ be32_to_cpus(&clock->index);
+ }
+
+ return err;
+}
+
+/* give UINT_MAX if set nothing */
+static int
+command_set_clock(struct snd_efw *efw,
+ unsigned int source, unsigned int rate)
+{
+ struct efc_clock clock = {0};
+ int err;
+
+ /* check arguments */
+ if ((source == UINT_MAX) && (rate == UINT_MAX)) {
+ err = -EINVAL;
+ goto end;
+ }
+
+ /* get current status */
+ err = command_get_clock(efw, &clock);
+ if (err < 0)
+ goto end;
+
+ /* no need */
+ if ((clock.source == source) && (clock.sampling_rate == rate))
+ goto end;
+
+ /* set params */
+ if ((source != UINT_MAX) && (clock.source != source))
+ clock.source = source;
+ if ((rate != UINT_MAX) && (clock.sampling_rate != rate))
+ clock.sampling_rate = rate;
+ clock.index = 0;
+
+ cpu_to_be32s(&clock.source);
+ cpu_to_be32s(&clock.sampling_rate);
+ cpu_to_be32s(&clock.index);
+
+ err = efw_transaction(efw, EFC_CAT_HWCTL,
+ EFC_CMD_HWCTL_SET_CLOCK,
+ (__be32 *)&clock,
+ sizeof(struct efc_clock) / sizeof(u32),
+ NULL, 0);
+ if (err < 0)
+ goto end;
+
+ /*
+ * With firmware version 5.8, just after changing clock state, these
+ * parameters are not immediately retrieved by get command. In my
+ * trial, there needs to be 100msec to get changed parameters.
+ */
+ msleep(150);
+end:
+ return err;
+}
+
+int snd_efw_command_get_clock_source(struct snd_efw *efw,
+ enum snd_efw_clock_source *source)
+{
+ int err;
+ struct efc_clock clock = {0};
+
+ err = command_get_clock(efw, &clock);
+ if (err >= 0)
+ *source = clock.source;
+
+ return err;
+}
+
+int snd_efw_command_set_clock_source(struct snd_efw *efw,
+ enum snd_efw_clock_source source)
+{
+ return command_set_clock(efw, source, UINT_MAX);
+}
+
+int snd_efw_command_get_sampling_rate(struct snd_efw *efw,
+ unsigned int *rate)
+{
+ int err;
+ struct efc_clock clock = {0};
+
+ err = command_get_clock(efw, &clock);
+ if (err >= 0)
+ *rate = clock.sampling_rate;
+
+ return err;
+}
+
+int
+snd_efw_command_set_sampling_rate(struct snd_efw *efw,
+ unsigned int rate)
+{
+ return command_set_clock(efw, UINT_MAX, rate);
+}
+
diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c
new file mode 100644
index 0000000..c2f499e
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks_transaction.c
@@ -0,0 +1,191 @@
+/*
+ * fireworks_transaction.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto <o-takashi@sakmocchi.jp>
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+/*
+ * Fireworks have its own transaction. The transaction can be delivered by AV/C
+ * Vendor Specific command. But at least Windows driver and firmware version 5.5
+ * or later don't use it.
+ *
+ * Transaction substance:
+ * At first, 6 data exist. Following to the 6 data, parameters for each
+ * commands exists. All of parameters are 32 bit alighed to big endian.
+ * data[0]: Length of transaction substance
+ * data[1]: Transaction version
+ * data[2]: Sequence number. This is incremented by the device
+ * data[3]: transaction category
+ * data[4]: transaction command
+ * data[5]: return value in response.
+ * data[6-]: parameters
+ *
+ * Transaction address:
+ * command: 0xecc000000000
+ * response: 0xecc080000000 (default)
+ *
+ * I note that the address for response can be changed by command. But this
+ * module uses the default address.
+ */
+#include "./fireworks.h"
+
+#define MEMORY_SPACE_EFW_COMMAND 0xecc000000000
+#define MEMORY_SPACE_EFW_RESPONSE 0xecc080000000
+/* this is for juju convinience? */
+#define MEMORY_SPACE_EFW_END 0xecc080000200
+
+#define ERROR_RETRIES 3
+#define ERROR_DELAY_MS 5
+#define EFC_TIMEOUT_MS 125
+
+static DEFINE_SPINLOCK(transaction_queues_lock);
+static LIST_HEAD(transaction_queues);
+
+enum transaction_queue_state {
+ STATE_PENDING,
+ STATE_BUS_RESET,
+ STATE_COMPLETE
+};
+
+struct transaction_queue {
+ struct list_head list;
+ struct fw_unit *unit;
+ void *buf;
+ unsigned int size;
+ u32 seqnum;
+ enum transaction_queue_state state;
+ wait_queue_head_t wait;
+};
+
+int snd_efw_transaction_run(struct fw_unit *unit,
+ const void *cmd, unsigned int cmd_size,
+ void *resp, unsigned int resp_size, u32 seqnum)
+{
+ struct transaction_queue t;
+ unsigned int tries;
+ int ret;
+
+ t.unit = unit;
+ t.buf = resp;
+ t.size = resp_size;
+ t.seqnum = seqnum + 1;
+ t.state = STATE_PENDING;
+ init_waitqueue_head(&t.wait);
+
+ spin_lock_irq(&transaction_queues_lock);
+ list_add_tail(&t.list, &transaction_queues);
+ spin_unlock_irq(&transaction_queues_lock);
+
+ tries = 0;
+ do {
+ ret = snd_fw_transaction(unit, TCODE_WRITE_BLOCK_REQUEST,
+ MEMORY_SPACE_EFW_COMMAND,
+ (void *)cmd, cmd_size, 0);
+ if (ret < 0)
+ break;
+
+ wait_event_timeout(t.wait, t.state != STATE_PENDING,
+ msecs_to_jiffies(EFC_TIMEOUT_MS));
+
+ if (t.state == STATE_COMPLETE) {
+ ret = t.size;
+ break;
+ } else if (t.state == STATE_BUS_RESET) {
+ msleep(ERROR_DELAY_MS);
+ } else if (++tries >= ERROR_RETRIES) {
+ dev_err(&t.unit->device, "EFC command timed out\n");
+ ret = -EIO;
+ break;
+ }
+ } while (1);
+
+ spin_lock_irq(&transaction_queues_lock);
+ list_del(&t.list);
+ spin_unlock_irq(&transaction_queues_lock);
+
+ return ret;
+}
+
+static void
+efw_response(struct fw_card *card, struct fw_request *request,
+ int tcode, int destination, int source,
+ int generation, unsigned long long offset,
+ void *data, size_t length, void *callback_data)
+{
+ struct fw_device *device;
+ struct transaction_queue *t;
+ unsigned long flags;
+ int rcode;
+ u32 seqnum;
+
+ rcode = RCODE_TYPE_ERROR;
+ if (length < sizeof(struct snd_efw_transaction)) {
+ rcode = RCODE_DATA_ERROR;
+ goto end;
+ } else if (offset != MEMORY_SPACE_EFW_RESPONSE) {
+ rcode = RCODE_ADDRESS_ERROR;
+ goto end;
+ }
+
+ seqnum = be32_to_cpu(((struct snd_efw_transaction *)data)->seqnum);
+
+ spin_lock_irqsave(&transaction_queues_lock, flags);
+ list_for_each_entry(t, &transaction_queues, list) {
+ device = fw_parent_device(t->unit);
+ if ((device->card != card) ||
+ (device->generation != generation))
+ continue;
+ smp_rmb(); /* node_id vs. generation */
+ if (device->node_id != source)
+ continue;
+
+ if ((t->state == STATE_PENDING) && (t->seqnum == seqnum)) {
+ t->state = STATE_COMPLETE;
+ t->size = min_t(unsigned int, length, t->size);
+ memcpy(t->buf, data, t->size);
+ wake_up(&t->wait);
+ rcode = RCODE_COMPLETE;
+ }
+ }
+ spin_unlock_irqrestore(&transaction_queues_lock, flags);
+end:
+ fw_send_response(card, request, rcode);
+}
+
+void snd_efw_transaction_bus_reset(struct fw_unit *unit)
+{
+ struct transaction_queue *t;
+
+ spin_lock_irq(&transaction_queues_lock);
+ list_for_each_entry(t, &transaction_queues, list) {
+ if ((t->unit == unit) &&
+ (t->state == STATE_PENDING)) {
+ t->state = STATE_BUS_RESET;
+ wake_up(&t->wait);
+ }
+ }
+ spin_unlock_irq(&transaction_queues_lock);
+}
+
+static struct fw_address_handler resp_register_handler = {
+ .length = MEMORY_SPACE_EFW_END - MEMORY_SPACE_EFW_RESPONSE,
+ .address_callback = efw_response
+};
+
+int snd_efw_transaction_register(void)
+{
+ static const struct fw_address_region resp_register_region = {
+ .start = MEMORY_SPACE_EFW_RESPONSE,
+ .end = MEMORY_SPACE_EFW_END
+ };
+ return fw_core_add_address_handler(&resp_register_handler,
+ &resp_register_region);
+}
+
+void snd_efw_transaction_unregister(void)
+{
+ WARN_ON(!list_empty(&transaction_queues));
+ fw_core_remove_address_handler(&resp_register_handler);
+}
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 20/38] fireworks: Add connection and stream management
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (18 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 19/38] fireworks: Add transaction and some commands Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 21/38] fireworks: Add proc interface for debugging purpose Takashi Sakamoto
` (18 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
Fireworks manages connections by CMP and can transmit/receive AMDTP streams
with a few quirks. This commit adds functionality to start/stop the streams.
Major Fireworks products don't support 'SYT-Match' mode, except for
AudioFire12/8(till 2009 July) with firmware version 1.0. Already in previous
commit, this driver don't support such old firmwares in previous commit. So
this commit adds support for non 'SYT-Match' mode.
I note that there is a short gap for MIDI streams when starting PCM data. When
AMDTP streams are running only for MIDI data and PCM data is going to be joined
at different sampling rate, then AMDTP streams are stopped once and started
again after changing sampling rate.
Fireworks quirks:
1.Fireworks transmits packets with both TAG0 and TAG1
In IEC 61883-1, each common isochronous packet (CIP) has 'tag' field in its
packet header. The value is generally 0x01 ('CIP header is included' = TAG1).
But Fireworks in 'IEC 61883 compliant mode' transmits 'no data' packet with 0x00
('No CIP header is included' = TAG0) but actually the packet includes CIP
structure. To handle 'presentation timestamp' for duplex streams
synchronization, this packets must be handled.
2.Fireworks transmits 'no data' packet out of specification
Fireworks transmits 'no data' packet with 'NO-DATA' FDF and no dummy data. It
includes CIP headers only. In IEC 61883-6, 'no data' packet is generated by two
ways. One is empty CIP packet defined in IEC 61883-1. Another is
'special non-empty packet' defined in IEC 61883-6. Fireworks uses strange
combination of them.
3.Fireworks can handle MIDI messages in the first 8 data blocks of out-packet
Fireworks ignores MIDI messages in other data blocks.
4.AudioFirePre8 transmits packets with wrong data block size
One of Fireworks device, AudioFirePre8, always reports 8 data block size in
transmitted packets and increments the data block counter by 8. But this is not
actual value.
I confirm them with firmware version 4.8 or later with Windows. According to
a contact persion in Echo Audio, there is no difference between firmwares
installed by Windows/OS X.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/fireworks/Makefile | 3 +-
sound/firewire/fireworks/fireworks.c | 46 ++++
sound/firewire/fireworks/fireworks.h | 26 +++
sound/firewire/fireworks/fireworks_stream.c | 338 ++++++++++++++++++++++++++++
4 files changed, 412 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/fireworks/fireworks_stream.c
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
index a6ce214..1bccb65 100644
--- a/sound/firewire/fireworks/Makefile
+++ b/sound/firewire/fireworks/Makefile
@@ -1,2 +1,3 @@
-snd-fireworks-objs := fireworks_transaction.o fireworks_command.o fireworks.o
+snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \
+ fireworks_stream.o fireworks.o
obj-m += snd-fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index d821176..49ffb1a 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -93,6 +93,42 @@ get_hardware_info(struct snd_efw *efw)
if (hwinfo->flags & BIT(FLAG_RESP_ADDR_CHANGABLE))
efw->resp_addr_changable = true;
+
+ efw->supported_sampling_rate = 0;
+ if ((hwinfo->min_sample_rate <= 22050)
+ && (22050 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_22050;
+ if ((hwinfo->min_sample_rate <= 32000)
+ && (32000 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_32000;
+ if ((hwinfo->min_sample_rate <= 44100)
+ && (44100 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_44100;
+ if ((hwinfo->min_sample_rate <= 48000)
+ && (48000 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_48000;
+ if ((hwinfo->min_sample_rate <= 88200)
+ && (88200 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_88200;
+ if ((hwinfo->min_sample_rate <= 96000)
+ && (96000 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_96000;
+ if ((hwinfo->min_sample_rate <= 176400)
+ && (176400 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_176400;
+ if ((hwinfo->min_sample_rate <= 192000)
+ && (192000 <= hwinfo->max_sample_rate))
+ efw->supported_sampling_rate |= SNDRV_PCM_RATE_192000;
+
+ efw->midi_out_ports = hwinfo->midi_out_ports;
+ efw->midi_in_ports = hwinfo->midi_in_ports;
+
+ efw->pcm_capture_channels[0] = hwinfo->amdtp_tx_pcm_channels;
+ efw->pcm_capture_channels[1] = hwinfo->amdtp_tx_pcm_channels_2x;
+ efw->pcm_capture_channels[2] = hwinfo->amdtp_tx_pcm_channels_4x;
+ efw->pcm_playback_channels[0] = hwinfo->amdtp_rx_pcm_channels;
+ efw->pcm_playback_channels[1] = hwinfo->amdtp_rx_pcm_channels_2x;
+ efw->pcm_playback_channels[2] = hwinfo->amdtp_rx_pcm_channels_4x;
end:
kfree(hwinfo);
return err;
@@ -151,6 +187,10 @@ efw_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ err = snd_efw_stream_init_duplex(efw);
+ if (err < 0)
+ goto error;
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0)
@@ -171,13 +211,19 @@ error:
static void efw_update(struct fw_unit *unit)
{
struct snd_efw *efw = dev_get_drvdata(&unit->device);
+
snd_efw_transaction_bus_reset(efw->unit);
+ snd_efw_stream_update_duplex(efw);
+
return;
}
static void efw_remove(struct fw_unit *unit)
{
struct snd_efw *efw = dev_get_drvdata(&unit->device);
+
+ snd_efw_stream_destroy_duplex(efw);
+
snd_card_disconnect(efw->card);
snd_card_free_when_closed(efw->card);
return;
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index fae074c..1b207bb 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -22,9 +22,15 @@
#include <sound/initval.h>
#include <sound/pcm.h>
+#include "../packets-buffer.h"
+#include "../iso-resources.h"
+#include "../amdtp.h"
#include "../cmp.h"
#include "../lib.h"
+#define SND_EFW_MAX_MIDI_OUT_PORTS 2
+#define SND_EFW_MAX_MIDI_IN_PORTS 2
+
#define SND_EFW_MUITIPLIER_MODES 3
#define HWINFO_NAME_SIZE_BYTES 32
#define HWINFO_MAX_CAPS_GROUPS 8
@@ -46,6 +52,18 @@ struct snd_efw {
/* for transaction */
u32 seqnum;
bool resp_addr_changable;
+
+ unsigned int midi_in_ports;
+ unsigned int midi_out_ports;
+
+ unsigned int supported_sampling_rate;
+ unsigned int pcm_capture_channels[SND_EFW_MUITIPLIER_MODES];
+ unsigned int pcm_playback_channels[SND_EFW_MUITIPLIER_MODES];
+
+ struct amdtp_stream tx_stream;
+ struct amdtp_stream rx_stream;
+ struct cmp_connection out_conn;
+ struct cmp_connection in_conn;
};
struct snd_efw_transaction {
@@ -151,6 +169,14 @@ int snd_efw_command_set_clock_source(struct snd_efw *efw,
int snd_efw_command_get_sampling_rate(struct snd_efw *efw, unsigned int *rate);
int snd_efw_command_set_sampling_rate(struct snd_efw *efw, unsigned int rate);
+int snd_efw_stream_init_duplex(struct snd_efw *efw);
+int snd_efw_stream_start_duplex(struct snd_efw *efw,
+ struct amdtp_stream *request,
+ int sampling_rate);
+int snd_efw_stream_stop_duplex(struct snd_efw *efw);
+void snd_efw_stream_update_duplex(struct snd_efw *efw);
+void snd_efw_stream_destroy_duplex(struct snd_efw *efw);
+
#define SND_EFW_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
new file mode 100644
index 0000000..776243b
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -0,0 +1,338 @@
+/*
+ * fireworks_stream.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+#include "./fireworks.h"
+
+static unsigned int freq_table[] = {
+ /* multiplier mode 0 */
+ [0] = 32000,
+ [1] = 44100,
+ [2] = 48000,
+ /* multiplier mode 1 */
+ [3] = 88200,
+ [4] = 96000,
+ /* multiplier mode 2 */
+ [5] = 176400,
+ [6] = 192000,
+};
+
+int snd_efw_get_multiplier_mode(int sampling_rate)
+{
+ unsigned int i;
+ for (i = 0; i < sizeof(freq_table); i++)
+ if (freq_table[i] == sampling_rate)
+ return (i - 1) / 2;
+
+ return -1;
+}
+
+static int
+init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
+{
+ struct cmp_connection *conn;
+ enum cmp_direction c_dir;
+ enum amdtp_stream_direction s_dir;
+ int err;
+
+ if (stream == &efw->tx_stream) {
+ conn = &efw->out_conn;
+ c_dir = CMP_OUTPUT;
+ s_dir = AMDTP_IN_STREAM;
+ } else {
+ conn = &efw->in_conn;
+ c_dir = CMP_INPUT;
+ s_dir = AMDTP_OUT_STREAM;
+ }
+
+ err = cmp_connection_init(conn, efw->unit, c_dir, 0);
+ if (err < 0)
+ goto end;
+
+ err = amdtp_stream_init(stream, efw->unit, s_dir, CIP_BLOCKING);
+ if (err < 0) {
+ cmp_connection_destroy(conn);
+ goto end;
+ }
+
+end:
+ return err;
+}
+
+static void
+stop_stream(struct snd_efw *efw, struct amdtp_stream *stream)
+{
+ if (amdtp_stream_running(stream))
+ amdtp_stream_stop(stream);
+
+ if (stream == &efw->tx_stream)
+ cmp_connection_break(&efw->out_conn);
+ else
+ cmp_connection_break(&efw->in_conn);
+
+ return;
+}
+
+static int
+start_stream(struct snd_efw *efw, struct amdtp_stream *stream,
+ unsigned int sampling_rate)
+{
+ struct cmp_connection *conn;
+ unsigned int pcm_channels, midi_ports;
+ int mode, err;
+
+ /* already running */
+ if (amdtp_stream_running(stream)) {
+ err = 0;
+ goto end;
+ }
+
+ mode = snd_efw_get_multiplier_mode(sampling_rate);
+ if (stream == &efw->tx_stream) {
+ conn = &efw->out_conn;
+ pcm_channels = efw->pcm_capture_channels[mode];
+ midi_ports = efw->midi_out_ports;
+ } else {
+ conn = &efw->in_conn;
+ pcm_channels = efw->pcm_playback_channels[mode];
+ midi_ports = efw->midi_in_ports;
+ }
+
+ amdtp_stream_set_parameters(stream, sampling_rate,
+ pcm_channels, midi_ports);
+
+ /* establish connection via CMP */
+ err = cmp_connection_establish(conn,
+ amdtp_stream_get_max_payload(stream));
+ if (err < 0)
+ goto end;
+
+ /* start amdtp stream */
+ err = amdtp_stream_start(stream,
+ conn->resources.channel,
+ conn->speed);
+ if (err < 0)
+ stop_stream(efw, stream);
+
+ /* wait first callback */
+ if (!amdtp_stream_wait_callback(stream)) {
+ stop_stream(efw, stream);
+ err = -ETIMEDOUT;
+ goto end;
+ }
+end:
+ return err;
+}
+
+static void
+update_stream(struct snd_efw *efw, struct amdtp_stream *stream)
+{
+ struct cmp_connection *conn;
+
+ if (&efw->tx_stream == stream)
+ conn = &efw->out_conn;
+ else
+ conn = &efw->in_conn;
+
+ if (cmp_connection_update(conn) < 0) {
+ amdtp_stream_pcm_abort(stream);
+ mutex_lock(&efw->mutex);
+ stop_stream(efw, stream);
+ mutex_unlock(&efw->mutex);
+ return;
+ }
+ amdtp_stream_update(stream);
+}
+
+static void
+destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream)
+{
+ stop_stream(efw, stream);
+
+ if (stream == &efw->tx_stream)
+ cmp_connection_destroy(&efw->out_conn);
+ else
+ cmp_connection_destroy(&efw->in_conn);
+}
+
+static int
+get_roles(struct snd_efw *efw, enum cip_flags *sync_mode,
+ struct amdtp_stream **master, struct amdtp_stream **slave)
+{
+ enum snd_efw_clock_source clock_source;
+ int err;
+
+ err = snd_efw_command_get_clock_source(efw, &clock_source);
+ if (err < 0)
+ goto end;
+
+ if (clock_source != SND_EFW_CLOCK_SOURCE_SYTMATCH) {
+ *master = &efw->tx_stream;
+ *slave = &efw->rx_stream;
+ *sync_mode = CIP_SYNC_TO_DEVICE;
+ } else {
+ err = -ENOSYS;
+ }
+end:
+ return err;
+}
+
+static int
+check_connection_used_by_others(struct snd_efw *efw,
+ struct amdtp_stream *s, bool *used)
+{
+ struct cmp_connection *conn;
+ int err;
+
+ if (s == &efw->tx_stream)
+ conn = &efw->out_conn;
+ else
+ conn = &efw->in_conn;
+
+ err = cmp_connection_check_used(conn, used);
+ if (err >= 0)
+ *used = (*used && !amdtp_stream_running(s));
+
+ return err;
+}
+
+int snd_efw_stream_init_duplex(struct snd_efw *efw)
+{
+ int err;
+
+ err = init_stream(efw, &efw->tx_stream);
+ if (err < 0)
+ goto end;
+
+ err = init_stream(efw, &efw->rx_stream);
+ if (err < 0)
+ goto end;
+
+ /* set IEC61883 compliant mode */
+ err = snd_efw_command_set_tx_mode(efw, SND_EFW_TRANSPORT_MODE_IEC61883);
+end:
+ return err;
+}
+
+int snd_efw_stream_start_duplex(struct snd_efw *efw,
+ struct amdtp_stream *request,
+ int sampling_rate)
+{
+ struct amdtp_stream *master, *slave;
+ enum cip_flags sync_mode;
+ int err, curr_rate;
+ bool slave_flag, used;
+
+ err = get_roles(efw, &sync_mode, &master, &slave);
+ if (err < 0)
+ goto end;
+
+ if ((request == slave) || amdtp_stream_running(slave))
+ slave_flag = true;
+ else
+ slave_flag = false;
+
+ /*
+ * Considering JACK/FFADO streaming:
+ * TODO: This can be removed hwdep functionality becomes popular.
+ */
+ err = check_connection_used_by_others(efw, master, &used);
+ if (err < 0)
+ goto end;
+ if (used) {
+ dev_err(&efw->unit->device,
+ "connections established by others: %d\n",
+ used);
+ err = -EBUSY;
+ goto end;
+ }
+
+ /* change sampling rate if possible */
+ err = snd_efw_command_get_sampling_rate(efw, &curr_rate);
+ if (err < 0)
+ goto end;
+ if (sampling_rate == 0)
+ sampling_rate = curr_rate;
+ if (sampling_rate != curr_rate) {
+ /* master is just for MIDI stream */
+ if (amdtp_stream_running(master) &&
+ !amdtp_stream_pcm_running(master))
+ stop_stream(efw, master);
+
+ /* slave is just for MIDI stream */
+ if (amdtp_stream_running(slave) &&
+ !amdtp_stream_pcm_running(slave))
+ stop_stream(efw, slave);
+
+ err = snd_efw_command_set_sampling_rate(efw, sampling_rate);
+ if (err < 0)
+ goto end;
+ }
+
+ /* master should be always running */
+ if (!amdtp_stream_running(master)) {
+ amdtp_stream_set_sync(sync_mode, master, slave);
+ err = start_stream(efw, master, sampling_rate);
+ if (err < 0) {
+ dev_err(&efw->unit->device,
+ "fail to start AMDTP master stream:%d\n", err);
+ goto end;
+ }
+ }
+
+ /* start slave if needed */
+ if (slave_flag && !amdtp_stream_running(slave)) {
+ err = start_stream(efw, slave, sampling_rate);
+ if (err < 0) {
+ dev_err(&efw->unit->device,
+ "fail to start AMDTP slave stream:%d\n", err);
+ goto end;
+ }
+ }
+end:
+ return err;
+}
+
+int snd_efw_stream_stop_duplex(struct snd_efw *efw)
+{
+ struct amdtp_stream *master, *slave;
+ enum cip_flags sync_mode;
+ int err;
+
+ err = get_roles(efw, &sync_mode, &master, &slave);
+ if (err < 0)
+ goto end;
+
+ if (amdtp_stream_pcm_running(slave) ||
+ amdtp_stream_midi_running(slave))
+ goto end;
+
+ stop_stream(efw, slave);
+
+ if (!amdtp_stream_pcm_running(master) &&
+ !amdtp_stream_midi_running(master))
+ stop_stream(efw, master);
+
+end:
+ return err;
+}
+
+void snd_efw_stream_update_duplex(struct snd_efw *efw)
+{
+ update_stream(efw, &efw->rx_stream);
+ update_stream(efw, &efw->tx_stream);
+}
+
+void snd_efw_stream_destroy_duplex(struct snd_efw *efw)
+{
+ if (amdtp_stream_pcm_running(&efw->rx_stream))
+ amdtp_stream_pcm_abort(&efw->rx_stream);
+ if (amdtp_stream_pcm_running(&efw->tx_stream))
+ amdtp_stream_pcm_abort(&efw->tx_stream);
+
+ destroy_stream(efw, &efw->rx_stream);
+ destroy_stream(efw, &efw->tx_stream);
+}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 21/38] fireworks: Add proc interface for debugging purpose
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (19 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 20/38] fireworks: Add connection and stream management Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 22/38] fireworks: Add MIDI interface Takashi Sakamoto
` (17 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds proc interface to output infomation for debugging.
- firmware information
- sampling rate and clock source
- physical metering (linear value)
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/fireworks/Makefile | 2 +-
sound/firewire/fireworks/fireworks.c | 12 ++
sound/firewire/fireworks/fireworks.h | 11 ++
sound/firewire/fireworks/fireworks_proc.c | 187 ++++++++++++++++++++++++++++++
4 files changed, 211 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/fireworks/fireworks_proc.c
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
index 1bccb65..52bd15e 100644
--- a/sound/firewire/fireworks/Makefile
+++ b/sound/firewire/fireworks/Makefile
@@ -1,3 +1,3 @@
snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \
- fireworks_stream.o fireworks.o
+ fireworks_stream.o fireworks_proc.o fireworks.o
obj-m += snd-fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index 49ffb1a..9c041eb 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -129,6 +129,16 @@ get_hardware_info(struct snd_efw *efw)
efw->pcm_playback_channels[0] = hwinfo->amdtp_rx_pcm_channels;
efw->pcm_playback_channels[1] = hwinfo->amdtp_rx_pcm_channels_2x;
efw->pcm_playback_channels[2] = hwinfo->amdtp_rx_pcm_channels_4x;
+
+ /* hardware metering */
+ efw->phys_out = hwinfo->phys_out;
+ efw->phys_in = hwinfo->phys_in;
+ efw->phys_out_grp_count = hwinfo->phys_out_grp_count;
+ efw->phys_in_grp_count = hwinfo->phys_in_grp_count;
+ memcpy(&efw->phys_out_grps, hwinfo->phys_out_grps,
+ sizeof(struct snd_efw_phys_grp) * HWINFO_MAX_CAPS_GROUPS);
+ memcpy(&efw->phys_in_grps, hwinfo->phys_in_grps,
+ sizeof(struct snd_efw_phys_grp) * HWINFO_MAX_CAPS_GROUPS);
end:
kfree(hwinfo);
return err;
@@ -191,6 +201,8 @@ efw_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ snd_efw_proc_init(efw);
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0)
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 1b207bb..6f060f4 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -21,6 +21,7 @@
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
+#include <sound/info.h>
#include "../packets-buffer.h"
#include "../iso-resources.h"
@@ -64,6 +65,14 @@ struct snd_efw {
struct amdtp_stream rx_stream;
struct cmp_connection out_conn;
struct cmp_connection in_conn;
+
+ /* hardware metering parameters */
+ unsigned int phys_out;
+ unsigned int phys_in;
+ unsigned int phys_out_grp_count;
+ unsigned int phys_in_grp_count;
+ struct snd_efw_phys_grp phys_out_grps[HWINFO_MAX_CAPS_GROUPS];
+ struct snd_efw_phys_grp phys_in_grps[HWINFO_MAX_CAPS_GROUPS];
};
struct snd_efw_transaction {
@@ -177,6 +186,8 @@ int snd_efw_stream_stop_duplex(struct snd_efw *efw);
void snd_efw_stream_update_duplex(struct snd_efw *efw);
void snd_efw_stream_destroy_duplex(struct snd_efw *efw);
+void snd_efw_proc_init(struct snd_efw *efw);
+
#define SND_EFW_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/fireworks/fireworks_proc.c b/sound/firewire/fireworks/fireworks_proc.c
new file mode 100644
index 0000000..389a68b
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks_proc.c
@@ -0,0 +1,187 @@
+/*
+ * fireworks_proc.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2009-2010 Clemens Ladisch
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./fireworks.h"
+
+static inline const char*
+get_phys_name(struct snd_efw_phys_grp *grp)
+{
+ const char *ch_type[] = {
+ "Analog", "S/PDIF", "ADAT", "S/PDIF or ADAT",
+ "Mirroring", "Headphones", "I2S", "Guitar",
+ "Pirzo Guitar", "Guitar String", "Virtual", "Dummy"
+ };
+
+ if (grp->type < 10)
+ return ch_type[grp->type];
+ else if (grp->type == 0x10000)
+ return ch_type[10];
+ else
+ return ch_type[11];
+}
+
+static void
+proc_read_hwinfo(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+ struct snd_efw *efw = entry->private_data;
+ unsigned short i;
+ struct snd_efw_hwinfo hwinfo;
+
+ if (snd_efw_command_get_hwinfo(efw, &hwinfo) < 0)
+ goto end;
+
+ snd_iprintf(buffer, "guid_hi: 0x%X\n", hwinfo.guid_hi);
+ snd_iprintf(buffer, "guid_lo: 0x%X\n", hwinfo.guid_lo);
+ snd_iprintf(buffer, "type: 0x%X\n", hwinfo.type);
+ snd_iprintf(buffer, "version: 0x%X\n", hwinfo.version);
+ snd_iprintf(buffer, "vendor_name: %s\n", hwinfo.vendor_name);
+ snd_iprintf(buffer, "model_name: %s\n", hwinfo.model_name);
+
+ snd_iprintf(buffer, "dsp_version: 0x%X\n", hwinfo.dsp_version);
+ snd_iprintf(buffer, "arm_version: 0x%X\n", hwinfo.arm_version);
+ snd_iprintf(buffer, "fpga_version: 0x%X\n", hwinfo.fpga_version);
+
+ snd_iprintf(buffer, "flags: 0x%X\n", hwinfo.flags);
+
+ snd_iprintf(buffer, "max_sample_rate: 0x%X\n", hwinfo.max_sample_rate);
+ snd_iprintf(buffer, "min_sample_rate: 0x%X\n", hwinfo.min_sample_rate);
+ snd_iprintf(buffer, "supported_clock: 0x%X\n",
+ hwinfo.supported_clocks);
+
+ snd_iprintf(buffer, "phys out: 0x%X\n", hwinfo.phys_out);
+ snd_iprintf(buffer, "phys in: 0x%X\n", hwinfo.phys_in);
+
+ snd_iprintf(buffer, "phys in grps: 0x%X\n", hwinfo.phys_in_grp_count);
+ for (i = 0; i < hwinfo.phys_in_grp_count; i++) {
+ snd_iprintf(buffer,
+ "phys in grp[0x%d]: type 0x%d, count 0x%d\n",
+ i, hwinfo.phys_out_grps[i].type,
+ hwinfo.phys_out_grps[i].count);
+ }
+
+ snd_iprintf(buffer, "phys out grps: 0x%X\n", hwinfo.phys_out_grp_count);
+ for (i = 0; i < hwinfo.phys_out_grp_count; i++) {
+ snd_iprintf(buffer,
+ "phys out grps[0x%d]: type 0x%d, count 0x%d\n",
+ i, hwinfo.phys_out_grps[i].type,
+ hwinfo.phys_out_grps[i].count);
+ }
+
+ snd_iprintf(buffer, "amdtp rx pcm channels 1x: 0x%X\n",
+ hwinfo.amdtp_rx_pcm_channels);
+ snd_iprintf(buffer, "amdtp tx pcm channels 1x: 0x%X\n",
+ hwinfo.amdtp_tx_pcm_channels);
+ snd_iprintf(buffer, "amdtp rx pcm channels 2x: 0x%X\n",
+ hwinfo.amdtp_rx_pcm_channels_2x);
+ snd_iprintf(buffer, "amdtp tx pcm channels 2x: 0x%X\n",
+ hwinfo.amdtp_tx_pcm_channels_2x);
+ snd_iprintf(buffer, "amdtp rx pcm channels 4x: 0x%X\n",
+ hwinfo.amdtp_rx_pcm_channels_4x);
+ snd_iprintf(buffer, "amdtp tx pcm channels 4x: 0x%X\n",
+ hwinfo.amdtp_tx_pcm_channels_4x);
+
+ snd_iprintf(buffer, "midi out ports: 0x%X\n", hwinfo.midi_out_ports);
+ snd_iprintf(buffer, "midi in ports: 0x%X\n", hwinfo.midi_in_ports);
+
+ snd_iprintf(buffer, "mixer playback channels: 0x%X\n",
+ hwinfo.mixer_playback_channels);
+ snd_iprintf(buffer, "mixer capture channels: 0x%X\n",
+ hwinfo.mixer_capture_channels);
+end:
+ return;
+}
+
+static void
+proc_read_clock(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+ struct snd_efw *efw = entry->private_data;
+ enum snd_efw_clock_source clock_source;
+ unsigned int sampling_rate;
+
+ if (snd_efw_command_get_clock_source(efw, &clock_source) < 0)
+ goto end;
+
+ if (snd_efw_command_get_sampling_rate(efw, &sampling_rate) < 0)
+ goto end;
+
+ snd_iprintf(buffer, "Clock Source: %d\n", clock_source);
+ snd_iprintf(buffer, "Sampling Rate: %d\n", sampling_rate);
+end:
+ return;
+}
+
+/*
+ * NOTE:
+ * dB = 20 * log10(linear / 0x01000000)
+ * -144.0 dB when linear is 0
+ */
+static void
+proc_read_phys_meters(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_efw *efw = entry->private_data;
+ struct snd_efw_phys_meters *meters;
+ unsigned int g, c, m, max, size;
+ const char *name;
+ u32 *linear;
+ int err;
+
+ size = sizeof(struct snd_efw_phys_meters) +
+ (efw->phys_in + efw->phys_out) * sizeof(u32);
+ meters = kzalloc(size, GFP_KERNEL);
+ if (meters == NULL)
+ return;
+
+ err = snd_efw_command_get_phys_meters(efw, meters, size);
+ if (err < 0)
+ goto end;
+
+ snd_iprintf(buffer, "Physical Meters:\n");
+
+ m = 0;
+ max = min(efw->phys_out, meters->out_meters);
+ linear = meters->values;
+ snd_iprintf(buffer, " %d Outputs:\n", max);
+ for (g = 0; g < efw->phys_out_grp_count; g++) {
+ name = get_phys_name(&efw->phys_out_grps[g]);
+ for (c = 0; c < efw->phys_out_grps[g].count; c++) {
+ if (m < max)
+ snd_iprintf(buffer, "\t%s [%d]: %d\n",
+ name, c, linear[m++]);
+ }
+ }
+
+ m = 0;
+ max = min(efw->phys_in, meters->in_meters);
+ linear = meters->values + meters->out_meters;
+ snd_iprintf(buffer, " %d Inputs:\n", max);
+ for (g = 0; g < efw->phys_in_grp_count; g++) {
+ name = get_phys_name(&efw->phys_in_grps[g]);
+ for (c = 0; c < efw->phys_in_grps[g].count; c++)
+ if (m < max)
+ snd_iprintf(buffer, "\t%s [%d]: %d\n",
+ name, c, linear[m++]);
+ }
+end:
+ kfree(meters);
+ return;
+}
+
+void snd_efw_proc_init(struct snd_efw *efw)
+{
+ struct snd_info_entry *entry;
+
+ if (!snd_card_proc_new(efw->card, "#firmware", &entry))
+ snd_info_set_text_ops(entry, efw, proc_read_hwinfo);
+ if (!snd_card_proc_new(efw->card, "#clock", &entry))
+ snd_info_set_text_ops(entry, efw, proc_read_clock);
+ if (!snd_card_proc_new(efw->card, "#meters", &entry))
+ snd_info_set_text_ops(entry, efw, proc_read_phys_meters);
+ return;
+}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 22/38] fireworks: Add MIDI interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (20 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 21/38] fireworks: Add proc interface for debugging purpose Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 23/38] fireworks: Add PCM interface Takashi Sakamoto
` (16 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds a functionality to capture/playback MIDI messages.
When no AMDTP streams are running, this module starts AMDTP stream at current
sampling rate for MIDI stream.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/fireworks/Makefile | 3 +-
sound/firewire/fireworks/fireworks.c | 6 ++
sound/firewire/fireworks/fireworks.h | 3 +
sound/firewire/fireworks/fireworks_midi.c | 145 ++++++++++++++++++++++++++++++
4 files changed, 156 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/fireworks/fireworks_midi.c
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
index 52bd15e..a2cecc6 100644
--- a/sound/firewire/fireworks/Makefile
+++ b/sound/firewire/fireworks/Makefile
@@ -1,3 +1,4 @@
snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \
- fireworks_stream.o fireworks_proc.o fireworks.o
+ fireworks_stream.o fireworks_proc.o fireworks_midi.o \
+ fireworks.o
obj-m += snd-fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index 9c041eb..454fa5e 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -203,6 +203,12 @@ efw_probe(struct fw_unit *unit,
snd_efw_proc_init(efw);
+ if (efw->midi_out_ports || efw->midi_in_ports) {
+ err = snd_efw_create_midi_devices(efw);
+ if (err < 0)
+ goto error;
+ }
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0)
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 6f060f4..18a97b5 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -22,6 +22,7 @@
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/info.h>
+#include <sound/rawmidi.h>
#include "../packets-buffer.h"
#include "../iso-resources.h"
@@ -188,6 +189,8 @@ void snd_efw_stream_destroy_duplex(struct snd_efw *efw);
void snd_efw_proc_init(struct snd_efw *efw);
+int snd_efw_create_midi_devices(struct snd_efw *efw);
+
#define SND_EFW_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/fireworks/fireworks_midi.c b/sound/firewire/fireworks/fireworks_midi.c
new file mode 100644
index 0000000..b22658d
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks_midi.c
@@ -0,0 +1,145 @@
+/*
+ * fireworks_midi.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2009-2010 Clemens Ladisch
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+#include "fireworks.h"
+
+static int midi_capture_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_efw *efw = substream->rmidi->private_data;
+ return snd_efw_stream_start_duplex(efw, &efw->tx_stream, 0);
+}
+
+static int midi_playback_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_efw *efw = substream->rmidi->private_data;
+ return snd_efw_stream_start_duplex(efw, &efw->rx_stream, 0);
+}
+
+static int midi_close(struct snd_rawmidi_substream *substream)
+{
+ struct snd_efw *efw = substream->rmidi->private_data;
+ snd_efw_stream_stop_duplex(efw);
+ return 0;
+}
+
+static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_efw *efw = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&efw->lock, flags);
+
+ if (up)
+ amdtp_stream_midi_trigger(&efw->tx_stream,
+ substrm->number, substrm);
+ else
+ amdtp_stream_midi_trigger(&efw->tx_stream,
+ substrm->number, NULL);
+
+ spin_unlock_irqrestore(&efw->lock, flags);
+
+ return;
+}
+
+static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_efw *efw = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&efw->lock, flags);
+
+ if (up)
+ amdtp_stream_midi_trigger(&efw->rx_stream,
+ substrm->number, substrm);
+ else
+ amdtp_stream_midi_trigger(&efw->rx_stream,
+ substrm->number, NULL);
+
+ spin_unlock_irqrestore(&efw->lock, flags);
+
+ return;
+}
+
+static struct snd_rawmidi_ops midi_capture_ops = {
+ .open = midi_capture_open,
+ .close = midi_close,
+ .trigger = midi_capture_trigger,
+};
+
+static struct snd_rawmidi_ops midi_playback_ops = {
+ .open = midi_playback_open,
+ .close = midi_close,
+ .trigger = midi_playback_trigger,
+};
+
+static void set_midi_substream_names(struct snd_efw *efw,
+ struct snd_rawmidi_str *str)
+{
+ struct snd_rawmidi_substream *subs;
+
+ list_for_each_entry(subs, &str->substreams, list) {
+ snprintf(subs->name, sizeof(subs->name),
+ "%s MIDI %d", efw->card->shortname, subs->number + 1);
+ }
+}
+
+int snd_efw_create_midi_devices(struct snd_efw *efw)
+{
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_str *str;
+ int err;
+
+ /* check the number of midi stream */
+ if ((efw->midi_in_ports > SND_EFW_MAX_MIDI_IN_PORTS) |
+ (efw->midi_out_ports > SND_EFW_MAX_MIDI_OUT_PORTS))
+ return -EIO;
+
+ /* create midi ports */
+ err = snd_rawmidi_new(efw->card, efw->card->driver, 0,
+ efw->midi_out_ports, efw->midi_in_ports,
+ &rmidi);
+ if (err < 0)
+ return err;
+
+ snprintf(rmidi->name, sizeof(rmidi->name),
+ "%s MIDI", efw->card->shortname);
+ rmidi->private_data = efw;
+
+ if (efw->midi_in_ports > 0) {
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
+ &midi_capture_ops);
+
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
+
+ set_midi_substream_names(efw, str);
+ }
+
+ if (efw->midi_out_ports > 0) {
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
+ &midi_playback_ops);
+
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
+
+ set_midi_substream_names(efw, str);
+
+ /*
+ * Fireworks ignores MIDI messages in greater than first 8 data
+ * blocks of an AMDTP packet.
+ */
+ efw->rx_stream.blocks_for_midi = 8;
+ }
+
+ if ((efw->midi_out_ports > 0) && (efw->midi_in_ports > 0))
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
+
+ return 0;
+}
--
1.8.3.2
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 23/38] fireworks: Add PCM interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (21 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 22/38] fireworks: Add MIDI interface Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 24/38] fireworks: Add hwdep interface Takashi Sakamoto
` (15 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds a functionality to capture/playback PCM samples.
When AMDTP stream is already running for PCM or the source of clock is not
internal, available sampling rate is limited at current one.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/fireworks/Makefile | 2 +-
sound/firewire/fireworks/fireworks.c | 4 +
sound/firewire/fireworks/fireworks.h | 4 +
sound/firewire/fireworks/fireworks_pcm.c | 440 ++++++++++++++++++++++++++++
sound/firewire/fireworks/fireworks_stream.c | 23 --
5 files changed, 449 insertions(+), 24 deletions(-)
create mode 100644 sound/firewire/fireworks/fireworks_pcm.c
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
index a2cecc6..d7ebf83 100644
--- a/sound/firewire/fireworks/Makefile
+++ b/sound/firewire/fireworks/Makefile
@@ -1,4 +1,4 @@
snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \
fireworks_stream.o fireworks_proc.o fireworks_midi.o \
- fireworks.o
+ fireworks_pcm.o fireworks.o
obj-m += snd-fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index 454fa5e..82064de 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -209,6 +209,10 @@ efw_probe(struct fw_unit *unit,
goto error;
}
+ err = snd_efw_create_pcm_devices(efw);
+ if (err < 0)
+ goto error;
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0)
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 18a97b5..681111a 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -23,6 +23,7 @@
#include <sound/pcm.h>
#include <sound/info.h>
#include <sound/rawmidi.h>
+#include <sound/pcm_params.h>
#include "../packets-buffer.h"
#include "../iso-resources.h"
@@ -191,6 +192,9 @@ void snd_efw_proc_init(struct snd_efw *efw);
int snd_efw_create_midi_devices(struct snd_efw *efw);
+int snd_efw_create_pcm_devices(struct snd_efw *efw);
+int snd_efw_get_multiplier_mode(int sampling_rate);
+
#define SND_EFW_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/fireworks/fireworks_pcm.c b/sound/firewire/fireworks/fireworks_pcm.c
new file mode 100644
index 0000000..094cdec
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks_pcm.c
@@ -0,0 +1,440 @@
+/*
+ * fireworks_pcm.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2009-2010 Clemens Ladisch
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+#include "./fireworks.h"
+
+/*
+ * NOTE:
+ * Fireworks changes its AMDTP channels for PCM data according to its sampling
+ * rate. There are three modes. Here _XX is either _rx or _tx.
+ * 0: 32.0- 48.0 kHz then snd_efw_hwinfo.amdtp_XX_pcm_channels applied
+ * 1: 88.2- 96.0 kHz then snd_efw_hwinfo.amdtp_XX_pcm_channels_2x applied
+ * 2: 176.4-192.0 kHz then snd_efw_hwinfo.amdtp_XX_pcm_channels_4x applied
+ *
+ * The number of PCM channels for analog input and output are always fixed but
+ * the number of PCM channels for digital input and output are differed.
+ *
+ * Additionally, according to "AudioFire Owner's Manual Version 2.2", in some
+ * model, the number of PCM channels for digital input has more restriction
+ * depending on which digital interface is selected.
+ * - S/PDIF coaxial and optical : use input 1-2
+ * - ADAT optical at 32.0-48.0 kHz : use input 1-8
+ * - ADAT optical at 88.2-96.0 kHz : use input 1-4 (S/MUX format)
+ *
+ * The data in AMDTP channels for blank PCM channels are zero.
+ */
+static unsigned int freq_table[] = {
+ /* multiplier mode 0 */
+ [0] = 32000,
+ [1] = 44100,
+ [2] = 48000,
+ /* multiplier mode 1 */
+ [3] = 88200,
+ [4] = 96000,
+ /* multiplier mode 2 */
+ [5] = 176400,
+ [6] = 192000,
+};
+
+static inline int
+get_multiplier_mode_with_index(int index)
+{
+ return ((int)index - 1) / 2;
+}
+
+int snd_efw_get_multiplier_mode(int sampling_rate)
+{
+ int i;
+ for (i = 0; i < sizeof(freq_table); i++)
+ if (freq_table[i] == sampling_rate)
+ return get_multiplier_mode_with_index(i);
+
+ return -1;
+}
+
+static int
+hw_rule_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule,
+ struct snd_efw *efw, unsigned int *channels)
+{
+ struct snd_interval *r =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ const struct snd_interval *c =
+ hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval t = {
+ .min = UINT_MAX, .max = 0, .integer = 1
+ };
+ unsigned int rate_bit;
+ int mode, i;
+
+ for (i = 0; i < ARRAY_SIZE(freq_table); i++) {
+ /* skip unsupported sampling rate */
+ rate_bit = snd_pcm_rate_to_rate_bit(freq_table[i]);
+ if (!(efw->supported_sampling_rate & rate_bit))
+ continue;
+
+ mode = get_multiplier_mode_with_index(i);
+ if (!snd_interval_test(c, channels[mode]))
+ continue;
+
+ t.min = min(t.min, freq_table[i]);
+ t.max = max(t.max, freq_table[i]);
+
+ }
+
+ return snd_interval_refine(r, &t);
+}
+
+static int
+hw_rule_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule,
+ struct snd_efw *efw, unsigned int *channels)
+{
+ struct snd_interval *c =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ const struct snd_interval *r =
+ hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval t = {
+ .min = UINT_MAX, .max = 0, .integer = 1
+ };
+
+ unsigned int rate_bit;
+ int mode, i;
+
+ for (i = 0; i < ARRAY_SIZE(freq_table); i++) {
+ /* skip unsupported sampling rate */
+ rate_bit = snd_pcm_rate_to_rate_bit(freq_table[i]);
+ if (!(efw->supported_sampling_rate & rate_bit))
+ continue;
+
+ mode = get_multiplier_mode_with_index(i);
+ if (!snd_interval_test(r, freq_table[i]))
+ continue;
+
+ t.min = min(t.min, channels[mode]);
+ t.max = max(t.max, channels[mode]);
+
+ }
+
+ return snd_interval_refine(c, &t);
+}
+
+static int
+hw_rule_capture_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_efw *efw = rule->private;
+ return hw_rule_rate(params, rule, efw,
+ efw->pcm_capture_channels);
+}
+
+static int
+hw_rule_playback_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_efw *efw = rule->private;
+ return hw_rule_rate(params, rule, efw,
+ efw->pcm_playback_channels);
+}
+
+static int
+hw_rule_capture_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_efw *efw = rule->private;
+ return hw_rule_channels(params, rule, efw,
+ efw->pcm_capture_channels);
+}
+
+static int
+hw_rule_playback_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_efw *efw = rule->private;
+ return hw_rule_channels(params, rule, efw,
+ efw->pcm_playback_channels);
+}
+
+static int
+pcm_init_hw_params(struct snd_efw *efw,
+ struct snd_pcm_substream *substream)
+{
+ unsigned int *pcm_channels;
+ unsigned int rate_bit;
+ int mode, i;
+ int err;
+
+ struct snd_pcm_hardware hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_BATCH |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_SYNC_START |
+ SNDRV_PCM_INFO_FIFO_IN_FRAMES |
+ SNDRV_PCM_INFO_JOINT_DUPLEX |
+ /* for Open Sound System compatibility */
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER,
+ .rates = efw->supported_sampling_rate,
+ .rate_min = UINT_MAX,
+ .rate_max = 0,
+ .channels_min = UINT_MAX,
+ .channels_max = 0,
+ .buffer_bytes_max = 1024 * 1024 * 1024,
+ .period_bytes_min = 256,
+ .period_bytes_max = 1024 * 1024 * 1024 / 2,
+ .periods_min = 2,
+ .periods_max = 32,
+ .fifo_size = 0,
+ };
+
+ substream->runtime->hw = hardware;
+ substream->runtime->delay = substream->runtime->hw.fifo_size;
+
+ /* add rule between channels and sampling rate */
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S32;
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_capture_channels, efw,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ hw_rule_capture_rate, efw,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ pcm_channels = efw->pcm_capture_channels;
+ } else {
+ substream->runtime->hw.formats = AMDTP_OUT_PCM_FORMAT_BITS;
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_playback_channels, efw,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ hw_rule_playback_rate, efw,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ pcm_channels = efw->pcm_playback_channels;
+ }
+
+ /* limitation for min/max sampling rate */
+ snd_pcm_limit_hw_rates(substream->runtime);
+
+ /* limitation for the number of channels */
+ for (i = 0; i < ARRAY_SIZE(freq_table); i++) {
+ /* skip unsupported sampling rate */
+ rate_bit = snd_pcm_rate_to_rate_bit(freq_table[i]);
+ if (!(efw->supported_sampling_rate & rate_bit))
+ continue;
+
+ mode = get_multiplier_mode_with_index(i);
+ if (pcm_channels[mode] == 0)
+ continue;
+ substream->runtime->hw.channels_min =
+ min(substream->runtime->hw.channels_min,
+ pcm_channels[mode]);
+ substream->runtime->hw.channels_max =
+ max(substream->runtime->hw.channels_max,
+ pcm_channels[mode]);
+ }
+
+ /* AM824 in IEC 61883-6 can deliver 24bit data */
+ err = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 32, 24);
+ if (err < 0)
+ goto end;
+
+ /*
+ * AMDTP functionality in firewire-lib require periods to be aligned to
+ * 16 bit, or 24bit inner 32bit.
+ */
+ err = snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
+ if (err < 0)
+ goto end;
+
+ /* time for period constraint */
+ err = snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+ 500, UINT_MAX);
+end:
+ return err;
+}
+
+static int pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_efw *efw = substream->private_data;
+ int sampling_rate;
+ unsigned int clock_source;
+ int err;
+
+ err = pcm_init_hw_params(efw, substream);
+ if (err < 0)
+ goto end;
+
+ err = snd_efw_command_get_clock_source(efw, &clock_source);
+ if (err < 0)
+ goto end;
+
+ /*
+ * When source of clock is not internal or any PCM streams are running,
+ * available sampling rate is limited at current sampling rate.
+ */
+ if ((clock_source != SND_EFW_CLOCK_SOURCE_INTERNAL) ||
+ amdtp_stream_pcm_running(&efw->tx_stream) ||
+ amdtp_stream_pcm_running(&efw->rx_stream)) {
+ err = snd_efw_command_get_sampling_rate(efw, &sampling_rate);
+ if (err < 0)
+ goto end;
+ substream->runtime->hw.rate_min = sampling_rate;
+ substream->runtime->hw.rate_max = sampling_rate;
+ }
+
+ snd_pcm_set_sync(substream);
+end:
+ return err;
+}
+
+static int pcm_close(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+static int pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ return snd_pcm_lib_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(hw_params));
+}
+
+static int pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_efw *efw = substream->private_data;
+
+ snd_efw_stream_stop_duplex(efw);
+
+ return snd_pcm_lib_free_vmalloc_buffer(substream);
+}
+
+static int pcm_capture_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_efw *efw = substream->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+
+ err = snd_efw_stream_start_duplex(efw, &efw->tx_stream, runtime->rate);
+ if (err < 0)
+ goto end;
+
+ amdtp_stream_set_pcm_format(&efw->tx_stream, runtime->format);
+ amdtp_stream_pcm_prepare(&efw->tx_stream);
+end:
+ return err;
+}
+static int pcm_playback_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_efw *efw = substream->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+
+ err = snd_efw_stream_start_duplex(efw, &efw->rx_stream, runtime->rate);
+ if (err < 0)
+ goto end;
+
+ amdtp_stream_set_pcm_format(&efw->rx_stream, runtime->format);
+ amdtp_stream_pcm_prepare(&efw->rx_stream);
+end:
+ return err;
+}
+
+static int pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_efw *efw = substream->private_data;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ amdtp_stream_pcm_trigger(&efw->tx_stream, substream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ amdtp_stream_pcm_trigger(&efw->tx_stream, NULL);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+static int pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_efw *efw = substream->private_data;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ amdtp_stream_pcm_trigger(&efw->rx_stream, substream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ amdtp_stream_pcm_trigger(&efw->rx_stream, NULL);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static snd_pcm_uframes_t pcm_capture_pointer(struct snd_pcm_substream *sbstrm)
+{
+ struct snd_efw *efw = sbstrm->private_data;
+ return amdtp_stream_pcm_pointer(&efw->tx_stream);
+}
+static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm)
+{
+ struct snd_efw *efw = sbstrm->private_data;
+ return amdtp_stream_pcm_pointer(&efw->rx_stream);
+}
+
+static struct snd_pcm_ops pcm_capture_ops = {
+ .open = pcm_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_capture_prepare,
+ .trigger = pcm_capture_trigger,
+ .pointer = pcm_capture_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+};
+
+static struct snd_pcm_ops pcm_playback_ops = {
+ .open = pcm_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_playback_prepare,
+ .trigger = pcm_playback_trigger,
+ .pointer = pcm_playback_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
+};
+
+int snd_efw_create_pcm_devices(struct snd_efw *efw)
+{
+ struct snd_pcm *pcm;
+ int err;
+
+ err = snd_pcm_new(efw->card, efw->card->driver, 0, 1, 1, &pcm);
+ if (err < 0)
+ goto end;
+
+ pcm->private_data = efw;
+ snprintf(pcm->name, sizeof(pcm->name), "%s PCM", efw->card->shortname);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops);
+
+end:
+ return err;
+}
+
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
index 776243b..2fdc9a7 100644
--- a/sound/firewire/fireworks/fireworks_stream.c
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -7,29 +7,6 @@
*/
#include "./fireworks.h"
-static unsigned int freq_table[] = {
- /* multiplier mode 0 */
- [0] = 32000,
- [1] = 44100,
- [2] = 48000,
- /* multiplier mode 1 */
- [3] = 88200,
- [4] = 96000,
- /* multiplier mode 2 */
- [5] = 176400,
- [6] = 192000,
-};
-
-int snd_efw_get_multiplier_mode(int sampling_rate)
-{
- unsigned int i;
- for (i = 0; i < sizeof(freq_table); i++)
- if (freq_table[i] == sampling_rate)
- return (i - 1) / 2;
-
- return -1;
-}
-
static int
init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
{
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 24/38] fireworks: Add hwdep interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (22 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 23/38] fireworks: Add PCM interface Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 25/38] fireworks: Add command/response functionality into " Takashi Sakamoto
` (14 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This interface is designed for mixer/control application. To use hwdep
interface, the application can get information about firewire node, can
lock/unlock kernel streaming and can get notification at starting/stopping
kernel streaming.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
include/uapi/sound/asound.h | 3 +-
include/uapi/sound/firewire.h | 1 +
sound/firewire/fireworks/Makefile | 2 +-
sound/firewire/fireworks/fireworks.c | 5 +
sound/firewire/fireworks/fireworks.h | 12 ++
sound/firewire/fireworks/fireworks_hwdep.c | 197 ++++++++++++++++++++++++++++
sound/firewire/fireworks/fireworks_midi.c | 25 +++-
sound/firewire/fireworks/fireworks_pcm.c | 13 +-
sound/firewire/fireworks/fireworks_stream.c | 39 ++++++
9 files changed, 291 insertions(+), 6 deletions(-)
create mode 100644 sound/firewire/fireworks/fireworks_hwdep.c
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 9fc6219..5dfbfdf 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -94,9 +94,10 @@ enum {
SNDRV_HWDEP_IFACE_HDA, /* HD-audio */
SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */
SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */
+ SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */
/* Don't forget to change the following: */
- SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_DICE
+ SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREWORKS
};
struct snd_hwdep_info {
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index 59f5961..ac4f7ea 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -34,6 +34,7 @@ union snd_firewire_event {
#define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa)
#define SNDRV_FIREWIRE_TYPE_DICE 1
+#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
/* Fireworks, AV/C, RME, MOTU, ... */
struct snd_firewire_get_info {
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
index d7ebf83..0c74408 100644
--- a/sound/firewire/fireworks/Makefile
+++ b/sound/firewire/fireworks/Makefile
@@ -1,4 +1,4 @@
snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \
fireworks_stream.o fireworks_proc.o fireworks_midi.o \
- fireworks_pcm.o fireworks.o
+ fireworks_pcm.o fireworks_hwdep.o fireworks.o
obj-m += snd-fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index 82064de..65e68d7 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -192,6 +192,7 @@ efw_probe(struct fw_unit *unit,
efw->card_index = -1;
mutex_init(&efw->mutex);
spin_lock_init(&efw->lock);
+ init_waitqueue_head(&efw->hwdep_wait);
err = get_hardware_info(efw);
if (err < 0)
@@ -213,6 +214,10 @@ efw_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ err = snd_efw_create_hwdep_device(efw);
+ if (err < 0)
+ goto error;
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0)
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 681111a..bbcc287 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -24,6 +24,8 @@
#include <sound/info.h>
#include <sound/rawmidi.h>
#include <sound/pcm_params.h>
+#include <sound/firewire.h>
+#include <sound/hwdep.h>
#include "../packets-buffer.h"
#include "../iso-resources.h"
@@ -75,6 +77,11 @@ struct snd_efw {
unsigned int phys_in_grp_count;
struct snd_efw_phys_grp phys_out_grps[HWINFO_MAX_CAPS_GROUPS];
struct snd_efw_phys_grp phys_in_grps[HWINFO_MAX_CAPS_GROUPS];
+
+ /* for uapi */
+ int dev_lock_count;
+ bool dev_lock_changed;
+ wait_queue_head_t hwdep_wait;
};
struct snd_efw_transaction {
@@ -187,6 +194,9 @@ int snd_efw_stream_start_duplex(struct snd_efw *efw,
int snd_efw_stream_stop_duplex(struct snd_efw *efw);
void snd_efw_stream_update_duplex(struct snd_efw *efw);
void snd_efw_stream_destroy_duplex(struct snd_efw *efw);
+void snd_efw_stream_lock_changed(struct snd_efw *efw);
+int snd_efw_stream_lock_try(struct snd_efw *efw);
+void snd_efw_stream_lock_release(struct snd_efw *efw);
void snd_efw_proc_init(struct snd_efw *efw);
@@ -195,6 +205,8 @@ int snd_efw_create_midi_devices(struct snd_efw *efw);
int snd_efw_create_pcm_devices(struct snd_efw *efw);
int snd_efw_get_multiplier_mode(int sampling_rate);
+int snd_efw_create_hwdep_device(struct snd_efw *efw);
+
#define SND_EFW_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/fireworks/fireworks_hwdep.c b/sound/firewire/fireworks/fireworks_hwdep.c
new file mode 100644
index 0000000..4c28b6c
--- /dev/null
+++ b/sound/firewire/fireworks/fireworks_hwdep.c
@@ -0,0 +1,197 @@
+/*
+ * fireworks_hwdep.c - a part of driver for Fireworks based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+/*
+ * This codes have three functionalities.
+ *
+ * 1.get information about firewire node
+ * 2.get notification about starting/stopping stream
+ * 3.lock/unlock streaming
+ */
+
+#include "fireworks.h"
+
+static long
+hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
+ loff_t *offset)
+{
+ struct snd_efw *efw = hwdep->private_data;
+ DEFINE_WAIT(wait);
+ union snd_firewire_event event;
+
+ spin_lock_irq(&efw->lock);
+
+ while (!efw->dev_lock_changed) {
+ prepare_to_wait(&efw->hwdep_wait, &wait, TASK_INTERRUPTIBLE);
+ spin_unlock_irq(&efw->lock);
+ schedule();
+ finish_wait(&efw->hwdep_wait, &wait);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ spin_lock_irq(&efw->lock);
+ }
+
+ memset(&event, 0, sizeof(event));
+ if (efw->dev_lock_changed) {
+ event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
+ event.lock_status.status = (efw->dev_lock_count > 0);
+ efw->dev_lock_changed = false;
+
+ count = min_t(long, count, sizeof(event.lock_status));
+ }
+
+ spin_unlock_irq(&efw->lock);
+
+ if (copy_to_user(buf, &event, count))
+ return -EFAULT;
+
+ return count;
+}
+
+static unsigned int
+hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait)
+{
+ struct snd_efw *efw = hwdep->private_data;
+ unsigned int events;
+
+ poll_wait(file, &efw->hwdep_wait, wait);
+
+ spin_lock_irq(&efw->lock);
+ if (efw->dev_lock_changed)
+ events = POLLIN | POLLRDNORM;
+ else
+ events = 0;
+ spin_unlock_irq(&efw->lock);
+
+ return events;
+}
+
+static int
+hwdep_get_info(struct snd_efw *efw, void __user *arg)
+{
+ struct fw_device *dev = fw_parent_device(efw->unit);
+ struct snd_firewire_get_info info;
+
+ memset(&info, 0, sizeof(info));
+ info.type = SNDRV_FIREWIRE_TYPE_FIREWORKS;
+ info.card = dev->card->index;
+ *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]);
+ *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]);
+ strlcpy(info.device_name, dev_name(&dev->device),
+ sizeof(info.device_name));
+
+ if (copy_to_user(arg, &info, sizeof(info)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int
+hwdep_lock(struct snd_efw *efw)
+{
+ int err;
+
+ spin_lock_irq(&efw->lock);
+
+ if (efw->dev_lock_count == 0) {
+ efw->dev_lock_count = -1;
+ err = 0;
+ } else
+ err = -EBUSY;
+
+ spin_unlock_irq(&efw->lock);
+
+ return err;
+}
+
+static int
+hwdep_unlock(struct snd_efw *efw)
+{
+ int err;
+
+ spin_lock_irq(&efw->lock);
+
+ if (efw->dev_lock_count == -1) {
+ efw->dev_lock_count = 0;
+ err = 0;
+ } else
+ err = -EBADFD;
+
+ spin_unlock_irq(&efw->lock);
+
+ return err;
+}
+
+static int
+hwdep_release(struct snd_hwdep *hwdep, struct file *file)
+{
+ struct snd_efw *efw = hwdep->private_data;
+
+ spin_lock_irq(&efw->lock);
+ if (efw->dev_lock_count == -1)
+ efw->dev_lock_count = 0;
+ spin_unlock_irq(&efw->lock);
+
+ return 0;
+}
+
+static int
+hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct snd_efw *efw = hwdep->private_data;
+
+ switch (cmd) {
+ case SNDRV_FIREWIRE_IOCTL_GET_INFO:
+ return hwdep_get_info(efw, (void __user *)arg);
+ case SNDRV_FIREWIRE_IOCTL_LOCK:
+ return hwdep_lock(efw);
+ case SNDRV_FIREWIRE_IOCTL_UNLOCK:
+ return hwdep_unlock(efw);
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+#ifdef CONFIG_COMPAT
+static int
+hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return hwdep_ioctl(hwdep, file, cmd,
+ (unsigned long)compat_ptr(arg));
+}
+#else
+#define hwdep_compat_ioctl NULL
+#endif
+
+static const struct snd_hwdep_ops hwdep_ops = {
+ .read = hwdep_read,
+ .release = hwdep_release,
+ .poll = hwdep_poll,
+ .ioctl = hwdep_ioctl,
+ .ioctl_compat = hwdep_compat_ioctl,
+};
+
+int snd_efw_create_hwdep_device(struct snd_efw *efw)
+{
+ struct snd_hwdep *hwdep;
+ int err;
+
+ err = snd_hwdep_new(efw->card, "Fireworks", 0, &hwdep);
+ if (err < 0)
+ goto end;
+ strcpy(hwdep->name, "Fireworks");
+ hwdep->iface = SNDRV_HWDEP_IFACE_FW_FIREWORKS;
+ hwdep->ops = hwdep_ops;
+ hwdep->private_data = efw;
+ hwdep->exclusive = true;
+end:
+ return err;
+}
+
diff --git a/sound/firewire/fireworks/fireworks_midi.c b/sound/firewire/fireworks/fireworks_midi.c
index b22658d..5700801 100644
--- a/sound/firewire/fireworks/fireworks_midi.c
+++ b/sound/firewire/fireworks/fireworks_midi.c
@@ -11,19 +11,40 @@
static int midi_capture_open(struct snd_rawmidi_substream *substream)
{
struct snd_efw *efw = substream->rmidi->private_data;
- return snd_efw_stream_start_duplex(efw, &efw->tx_stream, 0);
+ int err;
+
+ err = snd_efw_stream_lock_try(efw);
+ if (err < 0)
+ goto end;
+
+ err = snd_efw_stream_start_duplex(efw, &efw->tx_stream, 0);
+ if (err < 0)
+ snd_efw_stream_lock_release(efw);
+end:
+ return err;
}
static int midi_playback_open(struct snd_rawmidi_substream *substream)
{
struct snd_efw *efw = substream->rmidi->private_data;
- return snd_efw_stream_start_duplex(efw, &efw->rx_stream, 0);
+ int err;
+
+ err = snd_efw_stream_lock_try(efw);
+ if (err < 0)
+ goto end;
+
+ err = snd_efw_stream_start_duplex(efw, &efw->rx_stream, 0);
+ if (err < 0)
+ snd_efw_stream_lock_release(efw);
+end:
+ return err;
}
static int midi_close(struct snd_rawmidi_substream *substream)
{
struct snd_efw *efw = substream->rmidi->private_data;
snd_efw_stream_stop_duplex(efw);
+ snd_efw_stream_lock_release(efw);
return 0;
}
diff --git a/sound/firewire/fireworks/fireworks_pcm.c b/sound/firewire/fireworks/fireworks_pcm.c
index 094cdec..b622b43 100644
--- a/sound/firewire/fireworks/fireworks_pcm.c
+++ b/sound/firewire/fireworks/fireworks_pcm.c
@@ -270,10 +270,14 @@ static int pcm_open(struct snd_pcm_substream *substream)
unsigned int clock_source;
int err;
- err = pcm_init_hw_params(efw, substream);
+ err = snd_efw_stream_lock_try(efw);
if (err < 0)
goto end;
+ err = pcm_init_hw_params(efw, substream);
+ if (err < 0)
+ goto err_locked;
+
err = snd_efw_command_get_clock_source(efw, &clock_source);
if (err < 0)
goto end;
@@ -287,7 +291,7 @@ static int pcm_open(struct snd_pcm_substream *substream)
amdtp_stream_pcm_running(&efw->rx_stream)) {
err = snd_efw_command_get_sampling_rate(efw, &sampling_rate);
if (err < 0)
- goto end;
+ goto err_locked;
substream->runtime->hw.rate_min = sampling_rate;
substream->runtime->hw.rate_max = sampling_rate;
}
@@ -295,10 +299,15 @@ static int pcm_open(struct snd_pcm_substream *substream)
snd_pcm_set_sync(substream);
end:
return err;
+err_locked:
+ snd_efw_stream_lock_release(efw);
+ return err;
}
static int pcm_close(struct snd_pcm_substream *substream)
{
+ struct snd_efw *efw = substream->private_data;
+ snd_efw_stream_lock_release(efw);
return 0;
}
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
index 2fdc9a7..3bebb10 100644
--- a/sound/firewire/fireworks/fireworks_stream.c
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -313,3 +313,42 @@ void snd_efw_stream_destroy_duplex(struct snd_efw *efw)
destroy_stream(efw, &efw->rx_stream);
destroy_stream(efw, &efw->tx_stream);
}
+
+void snd_efw_stream_lock_changed(struct snd_efw *efw)
+{
+ efw->dev_lock_changed = true;
+ wake_up(&efw->hwdep_wait);
+}
+
+int snd_efw_stream_lock_try(struct snd_efw *efw)
+{
+ int err;
+
+ spin_lock_irq(&efw->lock);
+
+ /* user land lock this */
+ if (efw->dev_lock_count < 0) {
+ err = -EBUSY;
+ goto end;
+ }
+
+ /* this is the first time */
+ if (efw->dev_lock_count++ == 0)
+ snd_efw_stream_lock_changed(efw);
+ err = 0;
+end:
+ spin_unlock_irq(&efw->lock);
+ return err;
+}
+
+void snd_efw_stream_lock_release(struct snd_efw *efw)
+{
+ spin_lock_irq(&efw->lock);
+
+ if (WARN_ON(efw->dev_lock_count <= 0))
+ goto end;
+ if (--efw->dev_lock_count == 0)
+ snd_efw_stream_lock_changed(efw);
+end:
+ spin_unlock_irq(&efw->lock);
+}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 25/38] fireworks: Add command/response functionality into hwdep interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (23 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 24/38] fireworks: Add hwdep interface Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 26/38] bebob: Add skelton for BeBoB based devices Takashi Sakamoto
` (13 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds two functionality for hwdep interface, adds two parameters for
this module, add a node for proc interface.
To receive responses from devices, this module already allocate own callback
into private address area in host controller. This means no one can allocate
its own callback to the address. So this module must give a way for user
applications to receive responses.
This commit adds a functionality to receive responses via hwdep interface. The
application can receive responses to read from this interface. To achieve this,
this commit adds a buffer to queue responses. The default size of this buffer is
1024 bytes. This size can be changed to give preferrable size to
'resp_buf_size' parameter for this module. The application should notice rest
of space in this buffer because this module don't push responses when this
buffer has no space.
Additionaly, this commit adds a functionality to transmit commands via hwdep
interface. The application can transmit commands to write into this interface.
I note that the application can transmit one command at once, but can receive
as many responses as possible untill the user-buffer is full.
When using these interfaces, the application must keep maximum number of
sequence number within the number in firewire.h because this module uses this
number to distinguish the response is against the command by the application or
this module.
Usually responses against commands which the application transmits are pushed
into this buffer. But to enable 'resp_buf_debug' parameter for this module, all
responses are pushed into the buffer. When using this mode, I reccomend to
expand the size of buffer.
Finally this commit adds a new node into proc interface to output status of the
buffer.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
include/uapi/sound/firewire.h | 18 +++
sound/firewire/fireworks/fireworks.c | 17 +++
sound/firewire/fireworks/fireworks.h | 22 +--
sound/firewire/fireworks/fireworks_command.c | 6 +-
sound/firewire/fireworks/fireworks_hwdep.c | 134 ++++++++++++++---
sound/firewire/fireworks/fireworks_proc.c | 19 +++
sound/firewire/fireworks/fireworks_transaction.c | 176 ++++++++++++++++++++---
7 files changed, 345 insertions(+), 47 deletions(-)
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index ac4f7ea..910ed34 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -7,6 +7,7 @@
#define SNDRV_FIREWIRE_EVENT_LOCK_STATUS 0x000010cc
#define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION 0xd1ce004e
+#define SNDRV_FIREWIRE_EVENT_EFW_RESPONSE 0x4e617475
struct snd_firewire_event_common {
unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
@@ -22,10 +23,27 @@ struct snd_firewire_event_dice_notification {
unsigned int notification; /* DICE-specific bits */
};
+#define SND_EFW_TRANSACTION_SEQNUM_MAX ((uint32_t)(BIT(28) - 1))
+/* each field should be in big endian */
+struct snd_efw_transaction {
+ uint32_t length;
+ uint32_t version;
+ uint32_t seqnum;
+ uint32_t category;
+ uint32_t command;
+ uint32_t status;
+ uint32_t params[0];
+};
+struct snd_firewire_event_efw_response {
+ unsigned int type;
+ uint32_t response[0]; /* some responses */
+};
+
union snd_firewire_event {
struct snd_firewire_event_common common;
struct snd_firewire_event_lock_status lock_status;
struct snd_firewire_event_dice_notification dice_notification;
+ struct snd_firewire_event_efw_response efw_response;
};
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index 65e68d7..b27afde 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -24,6 +24,8 @@ MODULE_LICENSE("GPL v2");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+unsigned int resp_buf_size = 1024;
+bool resp_buf_debug = false;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "card index");
@@ -31,6 +33,10 @@ module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "enable Fireworks sound card");
+module_param(resp_buf_size, uint, 0444);
+MODULE_PARM_DESC(resp_buf_size, "response buffer size (default 1024)");
+module_param(resp_buf_debug, bool, 0444);
+MODULE_PARM_DESC(resp_buf_debug, "store all responses to buffer");
static DEFINE_MUTEX(devices_mutex);
static unsigned int devices_used;
@@ -166,6 +172,7 @@ efw_probe(struct fw_unit *unit,
{
struct snd_card *card;
struct snd_efw *efw;
+ void *resp_buf;
int card_index, err;
mutex_lock(&devices_mutex);
@@ -179,6 +186,13 @@ efw_probe(struct fw_unit *unit,
goto end;
}
+ /* prepare response buffer */
+ resp_buf = kzalloc(resp_buf_size, GFP_KERNEL);
+ if (resp_buf == NULL) {
+ err = -ENOMEM;
+ goto end;
+ }
+
err = snd_card_create(index[card_index], id[card_index],
THIS_MODULE, sizeof(struct snd_efw), &card);
if (err < 0)
@@ -193,6 +207,7 @@ efw_probe(struct fw_unit *unit,
mutex_init(&efw->mutex);
spin_lock_init(&efw->lock);
init_waitqueue_head(&efw->hwdep_wait);
+ efw->resp_buf = efw->pull_ptr = efw->push_ptr = resp_buf;
err = get_hardware_info(efw);
if (err < 0)
@@ -214,6 +229,7 @@ efw_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ snd_efw_transaction_add_instance(efw);
err = snd_efw_create_hwdep_device(efw);
if (err < 0)
goto error;
@@ -250,6 +266,7 @@ static void efw_remove(struct fw_unit *unit)
struct snd_efw *efw = dev_get_drvdata(&unit->device);
snd_efw_stream_destroy_duplex(efw);
+ snd_efw_transaction_remove_instance(efw);
snd_card_disconnect(efw->card);
snd_card_free_when_closed(efw->card);
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index bbcc287..5d4133a 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -40,6 +40,9 @@
#define HWINFO_NAME_SIZE_BYTES 32
#define HWINFO_MAX_CAPS_GROUPS 8
+extern unsigned int resp_buf_size;
+extern bool resp_buf_debug;
+
struct snd_efw_phys_grp {
u8 type; /* see enum snd_efw_grp_type */
u8 count;
@@ -82,23 +85,24 @@ struct snd_efw {
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
-};
-struct snd_efw_transaction {
- u32 length;
- u32 version;
- u32 seqnum;
- u32 category;
- u32 command;
- u32 status;
- u32 params[0];
+ /* response queue */
+ u8 *resp_buf;
+ u8 *pull_ptr;
+ u8 *push_ptr;
+ unsigned int resp_queues;
};
+
+int snd_efw_transaction_cmd(struct fw_unit *unit,
+ const void *cmd, unsigned int size);
int snd_efw_transaction_run(struct fw_unit *unit,
const void *cmd, unsigned int cmd_size,
void *resp, unsigned int resp_size, u32 seqnum);
int snd_efw_transaction_register(void);
void snd_efw_transaction_unregister(void);
void snd_efw_transaction_bus_reset(struct fw_unit *unit);
+void snd_efw_transaction_add_instance(struct snd_efw *efw);
+void snd_efw_transaction_remove_instance(struct snd_efw *efw);
struct snd_efw_hwinfo {
u32 flags;
diff --git a/sound/firewire/fireworks/fireworks_command.c b/sound/firewire/fireworks/fireworks_command.c
index 9b19e3e..92f3325 100644
--- a/sound/firewire/fireworks/fireworks_command.c
+++ b/sound/firewire/fireworks/fireworks_command.c
@@ -22,6 +22,7 @@
* Information commands. But this module don't use them.
*/
+#define EFW_TRANSACTION_SEQNUM_MIN (SND_EFW_TRANSACTION_SEQNUM_MAX + 1)
#define EFW_TRANSACTION_SEQNUM_MAX ((u32)~0)
/* for clock source and sampling rate */
@@ -120,8 +121,9 @@ efw_transaction(struct snd_efw *efw, unsigned int category,
/* to keep consistency of sequence number */
spin_lock(&efw->lock);
- if (efw->seqnum + 1 >= EFW_TRANSACTION_SEQNUM_MAX)
- efw->seqnum = 0;
+ if ((efw->seqnum < EFW_TRANSACTION_SEQNUM_MIN) ||
+ (efw->seqnum >= EFW_TRANSACTION_SEQNUM_MAX - 2))
+ efw->seqnum = EFW_TRANSACTION_SEQNUM_MIN;
else
efw->seqnum += 2;
seqnum = efw->seqnum;
diff --git a/sound/firewire/fireworks/fireworks_hwdep.c b/sound/firewire/fireworks/fireworks_hwdep.c
index 4c28b6c..9798d5b 100644
--- a/sound/firewire/fireworks/fireworks_hwdep.c
+++ b/sound/firewire/fireworks/fireworks_hwdep.c
@@ -7,26 +7,100 @@
*/
/*
- * This codes have three functionalities.
+ * This codes have five functionalities.
*
* 1.get information about firewire node
* 2.get notification about starting/stopping stream
* 3.lock/unlock streaming
+ * 4.transmit command of EFW transaction
+ * 5.receive response of EFW transaction
+ *
*/
#include "fireworks.h"
static long
-hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
+hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained,
+ loff_t *offset)
+{
+ unsigned int length, till_end, type;
+ struct snd_efw_transaction *t;
+ long count = 0;
+
+ if (remained < sizeof(type) + sizeof(struct snd_efw_transaction))
+ return -ENOSPC;
+
+ /* data type is SNDRV_FIREWIRE_EVENT_EFW_RESPONSE */
+ type = SNDRV_FIREWIRE_EVENT_EFW_RESPONSE;
+ if (copy_to_user(buf, &type, sizeof(type)))
+ return -EFAULT;
+ remained -= sizeof(type);
+ buf += sizeof(type);
+
+ /* write into buffer as many responses as possible */
+ while (efw->resp_queues > 0) {
+ t = (struct snd_efw_transaction *)(efw->pull_ptr);
+ length = be32_to_cpu(t->length) * sizeof(u32);
+
+ /* confirm enough space for this response */
+ if (remained < length)
+ break;
+
+ /* copy from ring buffer to user buffer */
+ while (length > 0) {
+ till_end = resp_buf_size -
+ (unsigned int)(efw->pull_ptr - efw->resp_buf);
+ till_end = min_t(unsigned int, length, till_end);
+
+ if (copy_to_user(buf, efw->pull_ptr, till_end))
+ return -EFAULT;
+
+ efw->pull_ptr += till_end;
+ if (efw->pull_ptr >= efw->resp_buf + resp_buf_size)
+ efw->pull_ptr = efw->resp_buf;
+
+ length -= till_end;
+ buf += till_end;
+ count += till_end;
+ remained -= till_end;
+ }
+
+ efw->resp_queues--;
+ }
+
+ return count;
+}
+
+static long
+hwdep_read_locked(struct snd_efw *efw, char __user *buf, long count,
+ loff_t *offset)
+{
+ union snd_firewire_event event;
+
+ memset(&event, 0, sizeof(event));
+
+ event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
+ event.lock_status.status = (efw->dev_lock_count > 0);
+ efw->dev_lock_changed = false;
+
+ count = min_t(long, count, sizeof(event.lock_status));
+
+ if (copy_to_user(buf, &event, count))
+ return -EFAULT;
+
+ return count;
+}
+
+static long
+hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
loff_t *offset)
{
struct snd_efw *efw = hwdep->private_data;
DEFINE_WAIT(wait);
- union snd_firewire_event event;
spin_lock_irq(&efw->lock);
- while (!efw->dev_lock_changed) {
+ while ((!efw->dev_lock_changed) && (efw->resp_queues == 0)) {
prepare_to_wait(&efw->hwdep_wait, &wait, TASK_INTERRUPTIBLE);
spin_unlock_irq(&efw->lock);
schedule();
@@ -36,20 +110,47 @@ hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
spin_lock_irq(&efw->lock);
}
- memset(&event, 0, sizeof(event));
- if (efw->dev_lock_changed) {
- event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
- event.lock_status.status = (efw->dev_lock_count > 0);
- efw->dev_lock_changed = false;
-
- count = min_t(long, count, sizeof(event.lock_status));
- }
+ if (efw->dev_lock_changed)
+ count = hwdep_read_locked(efw, buf, count, offset);
+ else if (efw->resp_queues > 0)
+ count = hwdep_read_resp_buf(efw, buf, count, offset);
spin_unlock_irq(&efw->lock);
- if (copy_to_user(buf, &event, count))
- return -EFAULT;
+ return count;
+}
+
+static long
+hwdep_write(struct snd_hwdep *hwdep, const char __user *data, long count,
+ loff_t *offset)
+{
+ struct snd_efw *efw = hwdep->private_data;
+ u32 seqnum;
+ u8 *buf;
+
+ if (count < sizeof(struct snd_efw_transaction))
+ return -EINVAL;
+
+ buf = kmalloc(count, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ if (copy_from_user(buf, data, count)) {
+ count = -EFAULT;
+ goto end;
+ }
+
+ /* check seqnum is not for kernel-land */
+ seqnum = ((struct snd_efw_transaction *)buf)->seqnum;
+ if (seqnum + 2 > SND_EFW_TRANSACTION_SEQNUM_MAX) {
+ count = -EINVAL;
+ goto end;
+ }
+ if (snd_efw_transaction_cmd(efw->unit, buf, count) < 0)
+ count = -EIO;
+end:
+ kfree(buf);
return count;
}
@@ -62,13 +163,13 @@ hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait)
poll_wait(file, &efw->hwdep_wait, wait);
spin_lock_irq(&efw->lock);
- if (efw->dev_lock_changed)
+ if (efw->dev_lock_changed || (efw->resp_queues > 0))
events = POLLIN | POLLRDNORM;
else
events = 0;
spin_unlock_irq(&efw->lock);
- return events;
+ return events | POLLOUT;
}
static int
@@ -172,6 +273,7 @@ hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file,
static const struct snd_hwdep_ops hwdep_ops = {
.read = hwdep_read,
+ .write = hwdep_write,
.release = hwdep_release,
.poll = hwdep_poll,
.ioctl = hwdep_ioctl,
diff --git a/sound/firewire/fireworks/fireworks_proc.c b/sound/firewire/fireworks/fireworks_proc.c
index 389a68b..ceb3b75 100644
--- a/sound/firewire/fireworks/fireworks_proc.c
+++ b/sound/firewire/fireworks/fireworks_proc.c
@@ -173,12 +173,31 @@ end:
return;
}
+static void
+proc_read_queues_state(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_efw *efw = entry->private_data;
+ unsigned int consumed;
+
+ if (efw->pull_ptr > efw->push_ptr)
+ consumed = resp_buf_size -
+ (unsigned int)(efw->pull_ptr - efw->push_ptr);
+ else
+ consumed = (unsigned int)(efw->push_ptr - efw->pull_ptr);
+
+ snd_iprintf(buffer, "%d %d/%d\n",
+ efw->resp_queues, consumed, resp_buf_size);
+}
+
void snd_efw_proc_init(struct snd_efw *efw)
{
struct snd_info_entry *entry;
if (!snd_card_proc_new(efw->card, "#firmware", &entry))
snd_info_set_text_ops(entry, efw, proc_read_hwinfo);
+ if (!snd_card_proc_new(efw->card, "#queues", &entry))
+ snd_info_set_text_ops(entry, efw, proc_read_queues_state);
if (!snd_card_proc_new(efw->card, "#clock", &entry))
snd_info_set_text_ops(entry, efw, proc_read_clock);
if (!snd_card_proc_new(efw->card, "#meters", &entry))
diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c
index c2f499e..a310958 100644
--- a/sound/firewire/fireworks/fireworks_transaction.c
+++ b/sound/firewire/fireworks/fireworks_transaction.c
@@ -40,6 +40,9 @@
#define ERROR_DELAY_MS 5
#define EFC_TIMEOUT_MS 125
+static DEFINE_SPINLOCK(instances_lock);
+static struct snd_efw *instances[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+
static DEFINE_SPINLOCK(transaction_queues_lock);
static LIST_HEAD(transaction_queues);
@@ -59,6 +62,14 @@ struct transaction_queue {
wait_queue_head_t wait;
};
+int snd_efw_transaction_cmd(struct fw_unit *unit,
+ const void *cmd, unsigned int size)
+{
+ return snd_fw_transaction(unit, TCODE_WRITE_BLOCK_REQUEST,
+ MEMORY_SPACE_EFW_COMMAND,
+ (void *)cmd, size, 0);
+}
+
int snd_efw_transaction_run(struct fw_unit *unit,
const void *cmd, unsigned int cmd_size,
void *resp, unsigned int resp_size, u32 seqnum)
@@ -80,9 +91,7 @@ int snd_efw_transaction_run(struct fw_unit *unit,
tries = 0;
do {
- ret = snd_fw_transaction(unit, TCODE_WRITE_BLOCK_REQUEST,
- MEMORY_SPACE_EFW_COMMAND,
- (void *)cmd, cmd_size, 0);
+ ret = snd_efw_transaction_cmd(t.unit, (void *)cmd, cmd_size);
if (ret < 0)
break;
@@ -109,27 +118,92 @@ int snd_efw_transaction_run(struct fw_unit *unit,
}
static void
-efw_response(struct fw_card *card, struct fw_request *request,
- int tcode, int destination, int source,
- int generation, unsigned long long offset,
- void *data, size_t length, void *callback_data)
+copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode)
{
- struct fw_device *device;
- struct transaction_queue *t;
- unsigned long flags;
- int rcode;
- u32 seqnum;
+ size_t capacity, till_end;
+ struct snd_efw_transaction *t;
- rcode = RCODE_TYPE_ERROR;
- if (length < sizeof(struct snd_efw_transaction)) {
- rcode = RCODE_DATA_ERROR;
- goto end;
- } else if (offset != MEMORY_SPACE_EFW_RESPONSE) {
- rcode = RCODE_ADDRESS_ERROR;
+ spin_lock_irq(&efw->lock);
+
+ t = (struct snd_efw_transaction *)data;
+ length = min_t(size_t, t->length * sizeof(t->length), length);
+
+ if (efw->push_ptr < efw->pull_ptr)
+ capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr);
+ else
+ capacity = resp_buf_size -
+ (unsigned int)(efw->push_ptr - efw->pull_ptr);
+
+ /* confirm enough space for this response */
+ if (capacity < length) {
+ *rcode = RCODE_CONFLICT_ERROR;
goto end;
}
- seqnum = be32_to_cpu(((struct snd_efw_transaction *)data)->seqnum);
+ /* copy to ring buffer */
+ while (length > 0) {
+ till_end = resp_buf_size -
+ (unsigned int)(efw->push_ptr - efw->resp_buf);
+ till_end = min_t(unsigned int, length, till_end);
+
+ memcpy(efw->push_ptr, data, till_end);
+
+ efw->push_ptr += till_end;
+ if (efw->push_ptr >= efw->resp_buf + resp_buf_size)
+ efw->push_ptr = efw->resp_buf;
+
+ length -= till_end;
+ data += till_end;
+ }
+
+ /* for hwdep */
+ efw->resp_queues++;
+ wake_up(&efw->hwdep_wait);
+
+ *rcode = RCODE_COMPLETE;
+end:
+ spin_unlock_irq(&efw->lock);
+}
+
+static void
+handle_resp_for_user(struct fw_card *card, int generation, int source,
+ void *data, size_t length, int *rcode)
+{
+ struct fw_device *device;
+ struct snd_efw *efw;
+ unsigned int i;
+
+ spin_lock_irq(&instances_lock);
+
+ for (i = 0; i < SNDRV_CARDS; i++) {
+ efw = instances[i];
+ if (efw == NULL)
+ continue;
+ device = fw_parent_device(efw->unit);
+ if ((device->card != card) ||
+ (device->generation != generation))
+ continue;
+ smp_rmb(); /* node id vs. generation */
+ if (device->node_id != source)
+ continue;
+
+ break;
+ }
+ if (i == SNDRV_CARDS)
+ goto end;
+
+ copy_resp_to_buf(efw, data, length, rcode);
+end:
+ spin_unlock_irq(&instances_lock);
+}
+
+static void
+handle_resp_for_kernel(struct fw_card *card, int generation, int source,
+ void *data, size_t length, int *rcode, u32 seqnum)
+{
+ struct fw_device *device;
+ struct transaction_queue *t;
+ unsigned long flags;
spin_lock_irqsave(&transaction_queues_lock, flags);
list_for_each_entry(t, &transaction_queues, list) {
@@ -146,14 +220,76 @@ efw_response(struct fw_card *card, struct fw_request *request,
t->size = min_t(unsigned int, length, t->size);
memcpy(t->buf, data, t->size);
wake_up(&t->wait);
- rcode = RCODE_COMPLETE;
+ *rcode = RCODE_COMPLETE;
}
}
spin_unlock_irqrestore(&transaction_queues_lock, flags);
+}
+
+static void
+efw_response(struct fw_card *card, struct fw_request *request,
+ int tcode, int destination, int source,
+ int generation, unsigned long long offset,
+ void *data, size_t length, void *callback_data)
+{
+ int rcode, dummy;
+ u32 seqnum;
+
+ rcode = RCODE_TYPE_ERROR;
+ if (length < sizeof(struct snd_efw_transaction)) {
+ rcode = RCODE_DATA_ERROR;
+ goto end;
+ } else if (offset != MEMORY_SPACE_EFW_RESPONSE) {
+ rcode = RCODE_ADDRESS_ERROR;
+ goto end;
+ }
+
+ seqnum = be32_to_cpu(((struct snd_efw_transaction *)data)->seqnum);
+ if (seqnum > SND_EFW_TRANSACTION_SEQNUM_MAX) {
+ handle_resp_for_kernel(card, generation, source,
+ data, length, &rcode, seqnum);
+ if (resp_buf_debug)
+ handle_resp_for_user(card, generation, source,
+ data, length, &dummy);
+ } else {
+ handle_resp_for_user(card, generation, source,
+ data, length, &rcode);
+ }
end:
fw_send_response(card, request, rcode);
}
+void snd_efw_transaction_add_instance(struct snd_efw *efw)
+{
+ unsigned int i;
+
+ spin_lock_irq(&instances_lock);
+
+ for (i = 0; i < SNDRV_CARDS; i++) {
+ if (instances[i] != NULL)
+ continue;
+ instances[i] = efw;
+ break;
+ }
+
+ spin_unlock_irq(&instances_lock);
+}
+
+void snd_efw_transaction_remove_instance(struct snd_efw *efw)
+{
+ unsigned int i;
+
+ spin_lock_irq(&instances_lock);
+
+ for (i = 0; i < SNDRV_CARDS; i++) {
+ if (instances[i] != efw)
+ continue;
+ instances[i] = NULL;
+ }
+
+ spin_unlock_irq(&instances_lock);
+}
+
void snd_efw_transaction_bus_reset(struct fw_unit *unit)
{
struct transaction_queue *t;
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 26/38] bebob: Add skelton for BeBoB based devices
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (24 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 25/38] fireworks: Add command/response functionality into " Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 27/38] bebob: Add commands and connections/streams management Takashi Sakamoto
` (12 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit add a new driver for BeBoB based devices with no functionality. This
driver just create/remove card instance according to callbacks.
BeBoB is 'BridgeCo enhanced Breakout Box'. This is installed to firewire
devices with DM1000/1000E/1100/1500 chipset. It gives common way for host
system to handle BeBoB based devices.
Current supported devices:
- Edirol FA-66/FA-101
- PreSonus FIREBOX/FIREPOD/Inspire1394
- BridgeCo RDAudio1/Audio5
- Mackie Onyx 820/1220/1620/1640 (Firewire I/O Card)
- Mackie d.2 (Firewire Option)
- Stanton FinalScratch 2 (ScratchAmp)
- Tascam IF-FW DM
- Apogee Rosetta 200/Rosetta 400 (X-FireWire card)
- Apogee DA-16X/AD-16X/DD-16X (X-FireWire card)
- ESI Quotafire610
- AcousticReality eARMasterOne
- CME MatrixKFW
- Phonic HB12/12 MkII/12 Universal
- Phonic HB18/18 MkII/18 Universal
- Phonic HB24/24 MkII/24 Universal
- Phonic FireFly 202/302
- Lynx Aurora 8/16 (LT-FW)
- ICON FireXon
- PrismSound Orpheus/ADA-8XR
Devices possible to be supported if identifying IDs:
- Mackie Digital X Bus x.200/400
- CME UF400e
- Infrasonic DewX/Windy6
- Rolf Spuler Firewire Guitar
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 29 +++++
sound/firewire/Makefile | 1 +
sound/firewire/bebob/Makefile | 2 +
sound/firewire/bebob/bebob.c | 279 ++++++++++++++++++++++++++++++++++++++++++
sound/firewire/bebob/bebob.h | 65 ++++++++++
5 files changed, 376 insertions(+)
create mode 100644 sound/firewire/bebob/Makefile
create mode 100644 sound/firewire/bebob/bebob.c
create mode 100644 sound/firewire/bebob/bebob.h
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 0b85ebd..a2bf0cf 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -76,4 +76,33 @@ config SND_FIREWORKS
To compile this driver as a module, choose M here: the module
will be called snd-fireworks.
+config SND_BEBOB
+ tristate "BridgeCo DM1000/1500 with BeBoB firmware"
+ select SND_FIREWIRE_LIB
+ help
+ Say Y here to include support for FireWire devices based
+ on BridgeCo DM1000/1500 with BeBoB firmware:
+ * Edirol FA-66/FA-101
+ * PreSonus FIREBOX/FIREPOD/Inspire1394
+ * BridgeCo RDAudio1/Audio5
+ * Mackie Onyx 820/1220/1620/1640 (Firewire I/O Card)
+ * Mackie d.2 (Firewire Option)
+ * Stanton FinalScratch 2 (ScratchAmp)
+ * Tascam IF-FW/DM
+ * Apogee Rosetta 200/400 (X-FireWire card)
+ * Apogee DA/AD/DD-16X (X-FireWire card)
+ * ESI Quotafire610
+ * AcousticReality eARMasterOne
+ * CME MatrixKFW
+ * Phonic HB 12/12 MkII/12 Universal
+ * Phonic HB 18/18 MkII/18 Universal
+ * Phonic HB 24/24 MkII/24 Universal
+ * Phonic FireFly 202/302
+ * Lynx Aurora 8/16 (LT-FW)
+ * ICON FireXon
+ * PrismSound Orpheus/ADA-8XR
+
+ To compile this driver as a module, choose M here: the module
+ will be called snd-bebob.
+
endif # SND_FIREWIRE
diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile
index 5cd39dc..fad8d49 100644
--- a/sound/firewire/Makefile
+++ b/sound/firewire/Makefile
@@ -11,3 +11,4 @@ obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o
obj-$(CONFIG_SND_ISIGHT) += snd-isight.o
obj-$(CONFIG_SND_SCS1X) += snd-scs1x.o
obj-$(CONFIG_SND_FIREWORKS) += fireworks/
+obj-$(CONFIG_SND_BEBOB) += bebob/
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
new file mode 100644
index 0000000..c6f0141
--- /dev/null
+++ b/sound/firewire/bebob/Makefile
@@ -0,0 +1,2 @@
+snd-bebob-objs := bebob.o
+obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
new file mode 100644
index 0000000..83916ad
--- /dev/null
+++ b/sound/firewire/bebob/bebob.c
@@ -0,0 +1,279 @@
+/*
+ * bebob.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+/*
+ * BeBoB is 'BridgeCo enhanced Breakout Box'. This is installed to firewire
+ * devices with DM1000/1000E/1100/1500 chipset. It gives common way for host
+ * system to handle BeBoB based devices.
+ */
+
+#include "bebob.h"
+
+MODULE_DESCRIPTION("BridgeCo BeBoB driver");
+MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
+MODULE_LICENSE("GPL v2");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "card index");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "enable BeBoB sound card");
+
+static DEFINE_MUTEX(devices_mutex);
+static unsigned int devices_used;
+
+/* Offsets from information register. */
+#define INFO_OFFSET_GUID 0x10
+#define INFO_OFFSET_HW_MODEL_ID 0x18
+#define INFO_OFFSET_HW_MODEL_REVISION 0x1c
+
+#define VEN_EDIROL 0x000040ab
+#define VEN_PRESONUS 0x00000a92
+#define VEN_BRIDGECO 0x000007f5
+#define VEN_MACKIE 0x0000000f
+#define VEN_STANTON 0x00001260
+#define VEN_TASCAM 0x0000022e
+#define VEN_BEHRINGER 0x00001564
+#define VEN_APOGEE 0x000003db
+#define VEN_ESI 0x00000f1b
+#define VEN_ACOUSTIC 0x00000002
+#define VEN_CME 0x0000000a
+#define VEN_PHONIC 0x00001496
+#define VEN_LYNX 0x000019e5
+#define VEN_ICON 0x00001a9e
+#define VEN_PRISMSOUND 0x00001198
+
+static int
+name_device(struct snd_bebob *bebob, unsigned int vendor_id)
+{
+ char vendor[24] = {0};
+ char model[24] = {0};
+ u32 id;
+ u32 data[2] = {0};
+ u32 revision;
+ int err;
+
+ /* get vendor name from root directory */
+ err = fw_csr_string(bebob->device->config_rom + 5, CSR_VENDOR,
+ vendor, sizeof(vendor));
+ if (err < 0)
+ goto end;
+
+ /* get model name from unit directory */
+ err = fw_csr_string(bebob->unit->directory, CSR_MODEL,
+ model, sizeof(model));
+ if (err < 0)
+ goto end;
+
+ /* get hardware id */
+ err = snd_bebob_read_quad(bebob->unit, INFO_OFFSET_HW_MODEL_ID,
+ &id);
+ if (err < 0)
+ goto end;
+
+ /* get hardware revision */
+ err = snd_bebob_read_quad(bebob->unit, INFO_OFFSET_HW_MODEL_REVISION,
+ &revision);
+ if (err < 0)
+ goto end;
+
+ /* get GUID */
+ err = snd_bebob_read_block(bebob->unit, INFO_OFFSET_GUID,
+ data, sizeof(data));
+ if (err < 0)
+ goto end;
+
+ strcpy(bebob->card->driver, "BeBoB");
+ strcpy(bebob->card->shortname, model);
+ snprintf(bebob->card->longname, sizeof(bebob->card->longname),
+ "%s %s (id:%d, rev:%d), GUID %08x%08x at %s, S%d",
+ vendor, model, id, revision,
+ data[0], data[1],
+ dev_name(&bebob->unit->device),
+ 100 << bebob->device->max_speed);
+ strcpy(bebob->card->mixername, model);
+end:
+ return err;
+}
+
+static void
+bebob_card_free(struct snd_card *card)
+{
+ struct snd_bebob *bebob = card->private_data;
+
+ if (bebob->card_index >= 0) {
+ mutex_lock(&devices_mutex);
+ devices_used &= ~BIT(bebob->card_index);
+ mutex_unlock(&devices_mutex);
+ }
+
+ mutex_destroy(&bebob->mutex);
+
+ return;
+}
+
+static int
+bebob_probe(struct fw_unit *unit,
+ const struct ieee1394_device_id *entry)
+{
+ struct snd_card *card;
+ struct snd_bebob *bebob;
+ unsigned int card_index;
+ int err;
+
+ mutex_lock(&devices_mutex);
+
+ for (card_index = 0; card_index < SNDRV_CARDS; card_index++) {
+ if (!(devices_used & BIT(card_index)) && enable[card_index])
+ break;
+ }
+ if (card_index >= SNDRV_CARDS) {
+ err = -ENOENT;
+ goto end;
+ }
+
+ err = snd_card_create(index[card_index], id[card_index],
+ THIS_MODULE, sizeof(struct snd_bebob), &card);
+ if (err < 0)
+ goto end;
+ card->private_free = bebob_card_free;
+
+ bebob = card->private_data;
+ bebob->card = card;
+ bebob->device = fw_parent_device(unit);
+ bebob->unit = unit;
+ bebob->card_index = -1;
+ mutex_init(&bebob->mutex);
+ spin_lock_init(&bebob->lock);
+
+ err = name_device(bebob, entry->vendor_id);
+ if (err < 0)
+ goto error;
+
+ snd_card_set_dev(card, &unit->device);
+ err = snd_card_register(card);
+ if (err < 0) {
+ snd_card_free(card);
+ goto error;
+ }
+ dev_set_drvdata(&unit->device, bebob);
+ devices_used |= BIT(card_index);
+ bebob->card_index = card_index;
+end:
+ mutex_unlock(&devices_mutex);
+ return err;
+error:
+ snd_card_free(card);
+ mutex_unlock(&devices_mutex);
+ return err;
+}
+
+static void
+bebob_update(struct fw_unit *unit)
+{
+ struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
+ fcp_bus_reset(bebob->unit);
+}
+
+
+static void bebob_remove(struct fw_unit *unit)
+{
+ struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
+ snd_card_disconnect(bebob->card);
+ snd_card_free_when_closed(bebob->card);
+}
+
+static const struct ieee1394_device_id bebob_id_table[] = {
+ /* Edirol, FA-66 */
+ SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010049),
+ /* Edirol, FA-101 */
+ SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010048),
+ /* Presonus, FIREBOX */
+ SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010000),
+ /* PreSonus, FIREPOD */
+ SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010066),
+ /* PreSonus, Inspire1394 */
+ SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010001),
+ /* BridgeCo, RDAudio1 */
+ SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010048),
+ /* BridgeCo, Audio5 */
+ SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010049),
+ /* Mackie, Onyx 820/1220/1620/1640 (Firewire I/O Card) */
+ SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010065),
+ SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067),
+ /* Mackie, d.2 (Firewire Option) */
+ SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067),
+ /* Stanton, ScratchAmp */
+ SND_BEBOB_DEV_ENTRY(VEN_STANTON, 0x00000001),
+ /* Tascam, IF-FW DM */
+ SND_BEBOB_DEV_ENTRY(VEN_TASCAM, 0x00010067),
+ /* ApogeeElectronics, Rosetta 200/400 (X-FireWire card) */
+ /* ApogeeElectronics, DA/AD/DD-16X (X-FireWire card) */
+ SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00010048),
+ /* ESI, Quatafire610 */
+ SND_BEBOB_DEV_ENTRY(VEN_ESI, 0x00010064),
+ /* AcousticReality, eARMasterOne */
+ SND_BEBOB_DEV_ENTRY(VEN_ACOUSTIC, 0x00000002),
+ /* CME, MatrixKFW */
+ SND_BEBOB_DEV_ENTRY(VEN_CME, 0x00030000),
+ /* Phonic, HB 12/12 MkII/12 Universal */
+ /* Phonic, HB 18/18 MkII/18 Universal */
+ /* Phonic, HB 24/24 MkII/24 Universal */
+ /* Phonic, FireFly 202/302 */
+ SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00000000),
+ /* Lynx, Aurora 8/16 (LT-FW) */
+ SND_BEBOB_DEV_ENTRY(VEN_LYNX, 0x00000001),
+ /* ICON, FireXon */
+ SND_BEBOB_DEV_ENTRY(VEN_ICON, 0x00000001),
+ /* PrismSound, Orpheus */
+ SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x00010048),
+ /* PrismSound, ADA-8XR */
+ SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x0000ada8),
+ /* Ids are unknown but able to be supported */
+ /* Mackie, Digital X Bus x.200 */
+ /* Mackie, Digital X Bus x.400 */
+ /* CME, UF400e */
+ /* Infrasonic, DewX */
+ /* Infrasonic, Windy6 */
+ /* Rolf Spuler, Firewire Guitar */
+ {}
+};
+MODULE_DEVICE_TABLE(ieee1394, bebob_id_table);
+
+static struct fw_driver bebob_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "snd-bebob",
+ .bus = &fw_bus_type,
+ },
+ .probe = bebob_probe,
+ .update = bebob_update,
+ .remove = bebob_remove,
+ .id_table = bebob_id_table,
+};
+
+static int __init
+snd_bebob_init(void)
+{
+ return driver_register(&bebob_driver.driver);
+}
+
+static void __exit
+snd_bebob_exit(void)
+{
+ driver_unregister(&bebob_driver.driver);
+ mutex_destroy(&devices_mutex);
+}
+
+module_init(snd_bebob_init);
+module_exit(snd_bebob_exit);
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
new file mode 100644
index 0000000..a321c43
--- /dev/null
+++ b/sound/firewire/bebob/bebob.h
@@ -0,0 +1,65 @@
+/*
+ * bebob.h - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#ifndef SOUND_BEBOB_H_INCLUDED
+#define SOUND_BEBOB_H_INCLUDED
+
+#include <linux/compat.h>
+#include <linux/device.h>
+#include <linux/firewire.h>
+#include <linux/firewire-constants.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/initval.h>
+
+#include "../lib.h"
+#include "../fcp.h"
+
+/* basic register addresses on DM1000 */
+#define BEBOB_ADDR_REG_INFO 0xffffc8020000
+#define BEBOB_ADDR_REG_REQ 0xffffc8021000
+
+struct snd_bebob {
+ struct snd_card *card;
+ struct fw_device *device;
+ struct fw_unit *unit;
+ int card_index;
+
+ struct mutex mutex;
+ spinlock_t lock;
+};
+
+static inline int
+snd_bebob_read_block(struct fw_unit *unit, u64 addr, void *buf, int size)
+{
+ return snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST,
+ BEBOB_ADDR_REG_INFO + addr,
+ buf, size, 0);
+}
+
+static inline int
+snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf)
+{
+ return snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
+ BEBOB_ADDR_REG_INFO + addr,
+ (void *)buf, sizeof(u32), 0);
+}
+
+#define SND_BEBOB_DEV_ENTRY(vendor, model) \
+{ \
+ .match_flags = IEEE1394_MATCH_VENDOR_ID | \
+ IEEE1394_MATCH_MODEL_ID, \
+ .vendor_id = vendor, \
+ .model_id = model, \
+}
+
+#endif
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 27/38] bebob: Add commands and connections/streams management
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (25 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 26/38] bebob: Add skelton for BeBoB based devices Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 28/38] bebob: Add proc interface for debugging purpose Takashi Sakamoto
` (11 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds management functionality for connections and streams.
DM1000/BeBob uses CMP to manage connections and uses AMDTP for streams.
This commit also adds some BridgeCo's AV/C extension commands. There are many
BridgeCo's AV/C extension commands but this commit adds below commands to get
device's capability and status:
1.Extended Plug Info commands
- Plug Channel Position Specific Data
- Plug Type Specific Data
- Cluster(Section) Info Specific Data
- Plug Input Specific Data
2.Extended Stream Format Information commands
- Extended Stream Format Information Command - Single Request
For Extended Plug Info commands for Cluster Info Specific Data, I pick up
'section' instead of 'cluster' from document to prevent from misunderstanding
because 'cluster' is also used in IEC 61883-6.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/bebob/Makefile | 2 +-
sound/firewire/bebob/bebob.c | 10 +
sound/firewire/bebob/bebob.h | 120 ++++++
sound/firewire/bebob/bebob_command.c | 273 +++++++++++++
sound/firewire/bebob/bebob_stream.c | 773 +++++++++++++++++++++++++++++++++++
5 files changed, 1177 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/bebob/bebob_command.c
create mode 100644 sound/firewire/bebob/bebob_stream.c
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index c6f0141..5cece62 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,2 +1,2 @@
-snd-bebob-objs := bebob.o
+snd-bebob-objs := bebob_command.o bebob_stream.o bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 83916ad..dbb897a 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -160,6 +160,14 @@ bebob_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ err = snd_bebob_stream_discover(bebob);
+ if (err < 0)
+ goto error;
+
+ err = snd_bebob_stream_init_duplex(bebob);
+ if (err < 0)
+ goto error;
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0) {
@@ -183,12 +191,14 @@ bebob_update(struct fw_unit *unit)
{
struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
fcp_bus_reset(bebob->unit);
+ snd_bebob_stream_update_duplex(bebob);
}
static void bebob_remove(struct fw_unit *unit)
{
struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
+ snd_bebob_stream_destroy_duplex(bebob);
snd_card_disconnect(bebob->card);
snd_card_free_when_closed(bebob->card);
}
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index a321c43..125dbea 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -23,11 +23,25 @@
#include "../lib.h"
#include "../fcp.h"
+#include "../packets-buffer.h"
+#include "../iso-resources.h"
+#include "../amdtp.h"
+#include "../cmp.h"
/* basic register addresses on DM1000 */
#define BEBOB_ADDR_REG_INFO 0xffffc8020000
#define BEBOB_ADDR_REG_REQ 0xffffc8021000
+struct snd_bebob;
+
+#define SND_BEBOB_STRM_FMT_ENTRIES 9
+struct snd_bebob_stream_formation {
+ unsigned int pcm;
+ unsigned int midi;
+};
+/* this is a lookup table for index of stream formations */
+extern const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES];
+
struct snd_bebob {
struct snd_card *card;
struct fw_device *device;
@@ -36,6 +50,21 @@ struct snd_bebob {
struct mutex mutex;
spinlock_t lock;
+
+ unsigned int midi_input_ports;
+ unsigned int midi_output_ports;
+
+ struct cmp_connection out_conn;
+ struct amdtp_stream tx_stream;
+ struct cmp_connection in_conn;
+ struct amdtp_stream rx_stream;
+
+ struct snd_bebob_stream_formation
+ tx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES];
+ struct snd_bebob_stream_formation
+ rx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES];
+
+ int sync_input_plug;
};
static inline int
@@ -54,6 +83,97 @@ snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf)
(void *)buf, sizeof(u32), 0);
}
+/*
+ * AVC command extensions, AV/C Unit and Subunit, Revision 17
+ * (Nov 2003, BridgeCo)
+ */
+#define AVC_BRIDGECO_ADDR_BYTES 6
+enum avc_bridgeco_plug_dir {
+ AVC_BRIDGECO_PLUG_DIR_IN = 0x00,
+ AVC_BRIDGECO_PLUG_DIR_OUT = 0x01
+};
+enum avc_bridgeco_plug_mode {
+ AVC_BRIDGECO_PLUG_MODE_UNIT = 0x00,
+ AVC_BRIDGECO_PLUG_MODE_SUBUNIT = 0x01,
+ AVC_BRIDGECO_PLUG_MODE_FUNCTION_BLOCK = 0x02
+};
+enum avc_bridgeco_plug_unit {
+ AVC_BRIDGECO_PLUG_UNIT_ISOC = 0x00,
+ AVC_BRIDGECO_PLUG_UNIT_EXT = 0x01,
+ AVC_BRIDGECO_PLUG_UNIT_ASYNC = 0x02
+};
+enum avc_bridgeco_plug_type {
+ AVC_BRIDGECO_PLUG_TYPE_ISOC = 0x00,
+ AVC_BRIDGECO_PLUG_TYPE_ASYNC = 0x01,
+ AVC_BRIDGECO_PLUG_TYPE_MIDI = 0x02,
+ AVC_BRIDGECO_PLUG_TYPE_SYNC = 0x03,
+ AVC_BRIDGECO_PLUG_TYPE_ANA = 0x04,
+ AVC_BRIDGECO_PLUG_TYPE_DIG = 0x05
+};
+static inline void
+avc_bridgeco_fill_unit_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES],
+ enum avc_bridgeco_plug_dir dir,
+ enum avc_bridgeco_plug_unit unit,
+ unsigned int pid)
+{
+ buf[0] = 0xff; /* Unit */
+ buf[1] = dir;
+ buf[2] = AVC_BRIDGECO_PLUG_MODE_UNIT;
+ buf[3] = unit;
+ buf[4] = 0xff & pid;
+ buf[5] = 0xff; /* reserved */
+}
+static inline void
+avc_bridgeco_fill_subunit_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES],
+ unsigned int mode,
+ enum avc_bridgeco_plug_dir dir,
+ unsigned int pid)
+{
+ buf[0] = 0xff & mode; /* Subunit */
+ buf[1] = dir;
+ buf[2] = AVC_BRIDGECO_PLUG_MODE_SUBUNIT;
+ buf[3] = 0xff & pid;
+ buf[4] = 0xff; /* reserved */
+ buf[5] = 0xff; /* reserved */
+}
+int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
+ u8 add[AVC_BRIDGECO_ADDR_BYTES],
+ u8 *buf, unsigned int len);
+int avc_bridgeco_get_plug_type(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ enum avc_bridgeco_plug_type *type);
+int avc_bridgeco_get_plug_section_type(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ unsigned int section_id, u8 *ctype);
+int avc_bridgeco_get_plug_input(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ u8 input[7]);
+int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ unsigned int entryid, u8 *buf,
+ unsigned int *len);
+
+int snd_bebob_get_rate(struct snd_bebob *bebob, unsigned int *rate,
+ enum avc_general_plug_dir dir);
+int snd_bebob_set_rate(struct snd_bebob *bebob, unsigned int rate,
+ enum avc_general_plug_dir dir);
+
+/* for AMDTP streaming */
+int snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *rate);
+int snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate);
+int snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob,
+ bool *internal);
+int snd_bebob_stream_discover(struct snd_bebob *bebob);
+int snd_bebob_stream_map(struct snd_bebob *bebob,
+ struct amdtp_stream *stream);
+int snd_bebob_stream_init_duplex(struct snd_bebob *bebob);
+int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
+ struct amdtp_stream *stream,
+ unsigned int sampling_rate);
+int snd_bebob_stream_stop_duplex(struct snd_bebob *bebob);
+void snd_bebob_stream_update_duplex(struct snd_bebob *bebob);
+void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c
new file mode 100644
index 0000000..22a86d0
--- /dev/null
+++ b/sound/firewire/bebob/bebob_command.c
@@ -0,0 +1,273 @@
+/*
+ * bebob_command.c - driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+#define BEBOB_COMMAND_MAX_TRIAL 3
+#define BEBOB_COMMAND_WAIT_MSEC 100
+
+static inline void
+avc_bridgeco_fill_command_base(u8 *buf, unsigned int ctype, unsigned int opcode,
+ unsigned int subfunction,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES])
+{
+ buf[0] = 0x7 & ctype;
+ buf[1] = addr[0];
+ buf[2] = 0xff & opcode;
+ buf[3] = 0xff & subfunction;
+ buf[4] = addr[1];
+ buf[5] = addr[2];
+ buf[6] = addr[3];
+ buf[7] = addr[4];
+ buf[8] = addr[5];
+}
+
+int avc_bridgeco_get_plug_type(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ enum avc_bridgeco_plug_type *type)
+{
+ u8 *buf;
+ int err;
+
+ buf = kzalloc(12, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ /* status for plug info with bridgeco extension */
+ avc_bridgeco_fill_command_base(buf, 0x01, 0x02, 0xc0, addr);
+ buf[9] = 0x00; /* info type is 'plug type' */
+ buf[10] = 0xff; /* plug type in response */
+
+ /* do transaction and check buf[1-7,9] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7) | BIT(9));
+ if (err < 0)
+ goto end;
+ /* IMPLEMENTED/STABLE is OK */
+ else if ((err < 6) || (buf[0] != 0x0c)) {
+ err = -EIO;
+ goto end;
+ }
+
+ *type = buf[10];
+ err = 0;
+end:
+ kfree(buf);
+ return err;
+}
+
+int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ u8 *buf, unsigned int len)
+{
+ unsigned int trial;
+ int err;
+
+ /* check given buffer */
+ if ((buf == NULL) || (len < 256)) {
+ err = -EINVAL;
+ goto end;
+ }
+
+ /* status for plug info with bridgeco extension */
+ avc_bridgeco_fill_command_base(buf, 0x01, 0x02, 0xc0, addr);
+
+ /* info type is 'channel position' */
+ buf[9] = 0x03;
+
+ /*
+ * NOTE:
+ * M-Audio Firewire 410 returns 0x09 (ACCEPTED) just after changing
+ * signal format even if this command asks STATE. This is not in
+ * AV/C command specification.
+ */
+ for (trial = 0; trial < BEBOB_COMMAND_MAX_TRIAL; trial++) {
+ /* do transaction and check buf[1-7,9] are the same */
+ err = fcp_avc_transaction(unit, buf, 12, buf, 256,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) |
+ BIT(5) | BIT(6) | BIT(7) | BIT(9));
+ if (err < 0)
+ goto end;
+ else if (err < 6) {
+ err = -EIO;
+ goto end;
+ } else if (buf[0] == 0x0c)
+ break;
+ else if (trial < BEBOB_COMMAND_MAX_TRIAL)
+ msleep(BEBOB_COMMAND_WAIT_MSEC);
+ else {
+ err = -EIO;
+ goto end;
+ }
+ }
+
+ /* strip command header */
+ memmove(buf, buf + 10, err - 10);
+ err = 0;
+end:
+ return err;
+}
+
+int avc_bridgeco_get_plug_section_type(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ unsigned int section_id, u8 *type)
+{
+ u8 *buf;
+ int err;
+
+ /* section info includes charactors but this module don't need it */
+ buf = kzalloc(12, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ /* status for plug info with bridgeco extension */
+ avc_bridgeco_fill_command_base(buf, 0x01, 0x02, 0xc0, addr);
+
+ buf[9] = 0x07; /* info type is 'section info' */
+ buf[10] = 0xff & (section_id + 1); /* section id */
+ buf[11] = 0x00; /* type in response */
+
+ /* do transaction and check buf[1-7,9,10] are the same */
+ err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7) | BIT(9) | BIT(10));
+ if (err < 0)
+ goto end;
+ else if ((err < 12) && (buf[0] != 0x0c)) {
+ err = -EIO;
+ goto end;
+ }
+
+ *type = buf[11];
+ err = 0;
+end:
+ kfree(buf);
+ return err;
+}
+
+int avc_bridgeco_get_plug_input(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 input[7])
+{
+ int err;
+ u8 *buf;
+
+ buf = kzalloc(18, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ /* status for plug info with bridgeco extension */
+ avc_bridgeco_fill_command_base(buf, 0x01, 0x02, 0xc0, addr);
+
+ /* info type is 'Plug Input Specific Data' */
+ buf[9] = 0x05;
+
+ /* do transaction and check buf[1-7] are the same */
+ err = fcp_avc_transaction(unit, buf, 16, buf, 16,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7));
+ if (err < 0)
+ goto end;
+ else if ((err < 18) && (buf[0] != 0x0c)) {
+ err = -EIO;
+ goto end;
+ }
+
+ memcpy(input, buf + 10, 5);
+end:
+ kfree(buf);
+ return err;
+}
+
+int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ unsigned int entryid, u8 *buf,
+ unsigned int *len)
+{
+ int err;
+
+ /* check given buffer */
+ if ((buf == NULL) || (*len < 12)) {
+ err = -EINVAL;
+ goto end;
+ }
+
+ /* status for plug info with bridgeco extension */
+ avc_bridgeco_fill_command_base(buf, 0x01, 0x2f, 0xc1, addr);
+
+ buf[9] = 0xff; /* stream status in response */
+ buf[10] = 0xff & entryid; /* entry ID */
+
+ /* do transaction and check buf[1-7,10] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 12, buf, *len,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7) | BIT(10));
+ if (err < 0)
+ goto end;
+ /* reach the end of entries */
+ else if (buf[0] == 0x0a) {
+ err = 0;
+ *len = 0;
+ goto end;
+ } else if (buf[0] != 0x0c) {
+ err = -EINVAL;
+ goto end;
+ /* the header of this command is 11 bytes */
+ } else if (err < 12) {
+ err = -EIO;
+ goto end;
+ } else if (buf[10] != entryid) {
+ err = -EIO;
+ goto end;
+ }
+
+ /* strip command header */
+ memmove(buf, buf + 11, err - 11);
+ *len = err - 11;
+ err = 0;
+end:
+ return err;
+}
+
+int snd_bebob_get_rate(struct snd_bebob *bebob, unsigned int *rate,
+ enum avc_general_plug_dir dir)
+{
+ int err;
+
+ err = avc_general_get_sig_fmt(bebob->unit, rate, dir, 0);
+ if (err < 0)
+ goto end;
+
+ /* IMPLEMENTED/STABLE is OK */
+ if (err != 0x0c) {
+ dev_err(&bebob->unit->device,
+ "failed to get sampling rate\n");
+ err = -EIO;
+ }
+end:
+ return err;
+}
+
+int snd_bebob_set_rate(struct snd_bebob *bebob, unsigned int rate,
+ enum avc_general_plug_dir dir)
+{
+ int err;
+
+ err = avc_general_set_sig_fmt(bebob->unit, rate, dir, 0);
+ if (err < 0)
+ goto end;
+
+ /* ACCEPTED or INTERIM is OK */
+ if ((err != 0x0f) && (err != 0x09)) {
+ dev_err(&bebob->unit->device,
+ "failed to set sampling rate\n");
+ err = -EIO;
+ }
+end:
+ return err;
+}
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
new file mode 100644
index 0000000..7c604d8
--- /dev/null
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -0,0 +1,773 @@
+/*
+ * bebob_stream.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+/*
+ * NOTE;
+ * For BeBoB streams, Both of input and output CMP connection is important.
+ *
+ * [Communication with Windows driver] According to logs of IEEE1394 packets,
+ * all models seem to make both of connections when booting.
+ *
+ * [Actual behavior] In some devices, each CMP connection starts to
+ * transmit/receive a corresponding stream. But in the others, both of CMP
+ * connection needs to start transmitting stream. An example of the latter is
+ * 'M-Audio Firewire 410'.
+ */
+
+/* 128 is an arbitrary length but it seems to be enough */
+#define FORMAT_MAXIMUM_LENGTH 128
+
+const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES] = {
+ [0] = 22050,
+ [1] = 24000,
+ [2] = 32000,
+ [3] = 44100,
+ [4] = 48000,
+ [5] = 88200,
+ [6] = 96000,
+ [7] = 176400,
+ [8] = 192000,
+};
+
+static unsigned int
+get_formation_index(unsigned int rate)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof(snd_bebob_rate_table); i++) {
+ if (snd_bebob_rate_table[i] == rate)
+ return i;
+ }
+ return -1;
+}
+
+int
+snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *curr_rate)
+{
+ unsigned int tx_rate, rx_rate;
+ int err;
+
+ err = snd_bebob_get_rate(bebob, &tx_rate, AVC_GENERAL_PLUG_DIR_OUT);
+ if (err < 0)
+ goto end;
+
+ err = snd_bebob_get_rate(bebob, &rx_rate, AVC_GENERAL_PLUG_DIR_IN);
+ if (err < 0)
+ goto end;
+
+ *curr_rate = rx_rate;
+ if (rx_rate == tx_rate)
+ goto end;
+
+ /* synchronize receive stream rate to transmit stream rate */
+ err = snd_bebob_set_rate(bebob, rx_rate, AVC_GENERAL_PLUG_DIR_IN);
+end:
+ return err;
+}
+
+int
+snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate)
+{
+ int err;
+
+ /* TODO: move to strem_start? */
+ err = snd_bebob_set_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_OUT);
+ if (err < 0)
+ goto end;
+
+ err = snd_bebob_set_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_IN);
+end:
+ return err;
+}
+
+int
+snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal)
+{
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7];
+ int err = 0;
+
+ *internal = false;
+
+ /*
+ * 1.The device don't support for switching source of clock
+ * then assumed to use internal clock always
+ */
+ if (bebob->sync_input_plug < 0) {
+ *internal = true;
+ goto end;
+ }
+
+ /*
+ * 2.The device supports to switch source of clock by an usual way.
+ * Let's check input for 'Music Sub Unit Sync Input' plug.
+ */
+ avc_bridgeco_fill_subunit_addr(addr, 0x60, AVC_BRIDGECO_PLUG_DIR_IN,
+ bebob->sync_input_plug);
+ err = avc_bridgeco_get_plug_input(bebob->unit, addr, input);
+ if (err < 0)
+ goto end;
+
+ /*
+ * If source of clock is internal CSR, Music Sub Unit Sync Input is
+ * a destination of Music Sub Unit Sync Output.
+ */
+ *internal = ((input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) &&
+ (input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT) &&
+ (input[2] == 0x0c) &&
+ (input[3] == 0x00));
+end:
+ return err;
+}
+
+static unsigned int
+map_stream(struct snd_bebob *bebob, struct amdtp_stream *s)
+{
+ unsigned int sec, sections, ch, channels;
+ unsigned int pcm, midi, location;
+ unsigned int stm_pos, sec_loc, pos;
+ u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type;
+ enum avc_bridgeco_plug_dir dir;
+ int err;
+
+ /*
+ * The length of return value of this command cannot be expected. Here
+ * use the maximum length of FCP.
+ */
+ buf = kzalloc(256, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ if (s == &bebob->tx_stream)
+ dir = AVC_BRIDGECO_PLUG_DIR_OUT;
+ else
+ dir = AVC_BRIDGECO_PLUG_DIR_IN;
+
+ avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
+ err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256);
+ if (err < 0)
+ goto end;
+ pos = 0;
+
+ /* positions in I/O buffer */
+ pcm = 0;
+ midi = 0;
+
+ /* the number of sections in AMDTP packet */
+ sections = buf[pos++];
+
+ for (sec = 0; sec < sections; sec++) {
+ /* type of this section */
+ avc_bridgeco_fill_unit_addr(addr, dir,
+ AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
+ err = avc_bridgeco_get_plug_section_type(bebob->unit, addr,
+ sec, &type);
+ if (err < 0)
+ goto end;
+ /* NoType */
+ if (type == 0xff) {
+ err = -ENOSYS;
+ goto end;
+ }
+
+ /* the number of channels in this section */
+ channels = buf[pos++];
+
+ for (ch = 0; ch < channels; ch++) {
+ /* position of this channel in AMDTP packet */
+ stm_pos = buf[pos++] - 1;
+ /* location of this channel in this section */
+ sec_loc = buf[pos++] - 1;
+
+ switch (type) {
+ /* for MIDI conformant data channel */
+ case 0x0a:
+ location = midi + sec_loc;
+ if (location >= AMDTP_MAX_CHANNELS_FOR_MIDI) {
+ err = -ENOSYS;
+ goto end;
+ }
+ s->midi_position = stm_pos;
+ break;
+ /* for PCM data channel */
+ case 0x01: /* Headphone */
+ case 0x02: /* Microphone */
+ case 0x03: /* Line */
+ case 0x04: /* SPDIF */
+ case 0x05: /* ADAT */
+ case 0x06: /* TDIF */
+ case 0x07: /* MADI */
+ /* for undefined/changeable signal */
+ case 0x08: /* Analog */
+ case 0x09: /* Digital */
+ default:
+ location = pcm + sec_loc;
+ if (location >= AMDTP_MAX_CHANNELS_FOR_PCM) {
+ err = -ENOSYS;
+ goto end;
+ }
+ s->pcm_positions[location] = stm_pos;
+ break;
+ }
+ }
+
+ if (type != 0x0a)
+ pcm += channels;
+ else
+ midi += channels;
+ }
+end:
+ kfree(buf);
+ return err;
+}
+
+static int
+init_both_connections(struct snd_bebob *bebob)
+{
+ int err;
+
+ err = cmp_connection_init(&bebob->in_conn,
+ bebob->unit, CMP_INPUT, 0);
+ if (err < 0)
+ goto end;
+
+ err = cmp_connection_init(&bebob->out_conn,
+ bebob->unit, CMP_OUTPUT, 0);
+ if (err < 0)
+ cmp_connection_destroy(&bebob->in_conn);
+end:
+ return err;
+}
+
+static int
+check_connection_used_by_others(struct snd_bebob *bebob,
+ struct amdtp_stream *s, bool *used)
+{
+ struct cmp_connection *conn;
+ int err;
+
+ if (s == &bebob->tx_stream)
+ conn = &bebob->out_conn;
+ else
+ conn = &bebob->in_conn;
+
+ err = cmp_connection_check_used(conn, used);
+ if (err >= 0)
+ *used = (*used && !amdtp_stream_running(s));
+
+ return err;
+}
+
+static int
+make_both_connections(struct snd_bebob *bebob, unsigned int rate)
+{
+ int index, pcm_channels, midi_channels, err;
+
+ /* confirm params for both streams */
+ index = get_formation_index(rate);
+ pcm_channels = bebob->tx_stream_formations[index].pcm;
+ midi_channels = bebob->tx_stream_formations[index].midi;
+ amdtp_stream_set_parameters(&bebob->tx_stream,
+ rate, pcm_channels, midi_channels * 8);
+ pcm_channels = bebob->rx_stream_formations[index].pcm;
+ midi_channels = bebob->rx_stream_formations[index].midi;
+ amdtp_stream_set_parameters(&bebob->rx_stream,
+ rate, pcm_channels, midi_channels * 8);
+
+ /* establish connections for both streams */
+ err = cmp_connection_establish(&bebob->out_conn,
+ amdtp_stream_get_max_payload(&bebob->tx_stream));
+ if (err < 0)
+ goto end;
+ err = cmp_connection_establish(&bebob->in_conn,
+ amdtp_stream_get_max_payload(&bebob->rx_stream));
+ if (err < 0)
+ cmp_connection_break(&bebob->out_conn);
+end:
+ return err;
+}
+
+static void
+break_both_connections(struct snd_bebob *bebob)
+{
+ cmp_connection_break(&bebob->in_conn);
+ cmp_connection_break(&bebob->out_conn);
+ return;
+}
+
+static void
+destroy_both_connections(struct snd_bebob *bebob)
+{
+ break_both_connections(bebob);
+
+ cmp_connection_destroy(&bebob->in_conn);
+ cmp_connection_destroy(&bebob->out_conn);
+}
+
+static int
+get_roles(struct snd_bebob *bebob, enum cip_flags *sync_mode,
+ struct amdtp_stream **master, struct amdtp_stream **slave)
+{
+ /* currently this module doesn't support SYT-Match mode */
+ *sync_mode = CIP_SYNC_TO_DEVICE;
+ *master = &bebob->tx_stream;
+ *slave = &bebob->rx_stream;
+
+ return 0;
+}
+
+static int
+start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream,
+ unsigned int rate)
+{
+ struct cmp_connection *conn;
+ int err = 0;
+
+ /* already running */
+ if (amdtp_stream_running(stream))
+ goto end;
+
+ if (stream == &bebob->rx_stream)
+ conn = &bebob->in_conn;
+ else
+ conn = &bebob->out_conn;
+
+ /* channel mapping */
+ err = map_stream(bebob, stream);
+ if (err < 0)
+ goto end;
+
+ /* start amdtp stream */
+ err = amdtp_stream_start(stream,
+ conn->resources.channel,
+ conn->speed);
+end:
+ return err;
+}
+
+int snd_bebob_stream_init_duplex(struct snd_bebob *bebob)
+{
+ int err;
+
+ err = init_both_connections(bebob);
+ if (err < 0)
+ goto end;
+
+ err = amdtp_stream_init(&bebob->tx_stream, bebob->unit,
+ AMDTP_IN_STREAM, CIP_BLOCKING);
+ if (err < 0) {
+ destroy_both_connections(bebob);
+ goto end;
+ }
+
+ err = amdtp_stream_init(&bebob->rx_stream, bebob->unit,
+ AMDTP_OUT_STREAM, CIP_BLOCKING);
+ if (err < 0) {
+ amdtp_stream_destroy(&bebob->tx_stream);
+ destroy_both_connections(bebob);
+ }
+end:
+ return err;
+}
+
+int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
+ struct amdtp_stream *request,
+ unsigned int rate)
+{
+ struct amdtp_stream *master, *slave;
+ enum cip_flags sync_mode;
+ unsigned int curr_rate;
+ bool slave_flag, used;
+ int err;
+
+ mutex_lock(&bebob->mutex);
+
+ err = get_roles(bebob, &sync_mode, &master, &slave);
+ if (err < 0)
+ goto end;
+
+ if ((request == slave) || amdtp_stream_running(slave))
+ slave_flag = true;
+ else
+ slave_flag = false;
+
+ /*
+ * Considering JACK/FFADO streaming:
+ * TODO: This can be removed hwdep functionality becomes popular.
+ */
+ err = check_connection_used_by_others(bebob, master, &used);
+ if (err < 0)
+ goto end;
+ if (used) {
+ dev_err(&bebob->unit->device,
+ "connections established by others: %d\n",
+ used);
+ err = -EBUSY;
+ goto end;
+ }
+
+ /* get current rate */
+ err = snd_bebob_stream_get_rate(bebob, &curr_rate);
+ if (err < 0)
+ goto end;
+ if (rate == 0)
+ rate = curr_rate;
+
+ /* change sampling rate if needed */
+ if (rate != curr_rate) {
+ /* slave is just for MIDI stream */
+ if (amdtp_stream_running(slave) &&
+ !amdtp_stream_pcm_running(slave))
+ amdtp_stream_stop(slave);
+
+ /* master is just for MIDI stream */
+ if (amdtp_stream_running(master) &&
+ !amdtp_stream_pcm_running(master)) {
+ amdtp_stream_stop(master);
+ break_both_connections(bebob);
+ }
+ }
+
+ /* master should be always running */
+ if (!amdtp_stream_running(master)) {
+ amdtp_stream_set_sync(sync_mode, master, slave);
+
+ /*
+ * NOTE:
+ * If establishing connections at first, Yamaha GO46
+ * (and maybe Terratec X24) don't generate sound.
+ */
+ err = snd_bebob_stream_set_rate(bebob, rate);
+ if (err < 0)
+ goto end;
+
+ err = make_both_connections(bebob, rate);
+ if (err < 0)
+ goto end;
+
+ err = start_stream(bebob, master, rate);
+ if (err < 0) {
+ dev_err(&bebob->unit->device,
+ "fail to run AMDTP master stream:%d\n", err);
+ break_both_connections(bebob);
+ goto end;
+ }
+
+ /* wait first callback */
+ if (!amdtp_stream_wait_callback(master)) {
+ amdtp_stream_stop(master);
+ break_both_connections(bebob);
+ err = -ETIMEDOUT;
+ goto end;
+ }
+ }
+
+ /* start slave if needed */
+ if (slave_flag && !amdtp_stream_running(slave)) {
+ err = start_stream(bebob, slave, rate);
+ if (err < 0) {
+ dev_err(&bebob->unit->device,
+ "fail to run AMDTP slave stream:%d\n", err);
+ amdtp_stream_stop(master);
+ break_both_connections(bebob);
+ goto end;
+ }
+
+ /* wait first callback */
+ if (!amdtp_stream_wait_callback(slave)) {
+ amdtp_stream_stop(slave);
+ amdtp_stream_stop(master);
+ break_both_connections(bebob);
+ err = -ETIMEDOUT;
+ goto end;
+ }
+ }
+end:
+ mutex_unlock(&bebob->mutex);
+ return err;
+}
+
+int snd_bebob_stream_stop_duplex(struct snd_bebob *bebob)
+{
+ struct amdtp_stream *master, *slave;
+ enum cip_flags sync_mode;
+ int err;
+
+ mutex_lock(&bebob->mutex);
+
+ err = get_roles(bebob, &sync_mode, &master, &slave);
+ if (err < 0)
+ goto end;
+
+ if (amdtp_stream_pcm_running(slave) ||
+ amdtp_stream_midi_running(slave))
+ goto end;
+
+ amdtp_stream_stop(slave);
+
+ if (amdtp_stream_pcm_running(master) ||
+ amdtp_stream_midi_running(master))
+ goto end;
+
+ amdtp_stream_stop(master);
+ break_both_connections(bebob);
+end:
+ mutex_unlock(&bebob->mutex);
+ return err;
+}
+
+void snd_bebob_stream_update_duplex(struct snd_bebob *bebob)
+{
+ if ((cmp_connection_update(&bebob->in_conn) > 0) ||
+ (cmp_connection_update(&bebob->out_conn) > 0)) {
+ mutex_lock(&bebob->mutex);
+ amdtp_stream_pcm_abort(&bebob->rx_stream);
+ amdtp_stream_pcm_abort(&bebob->tx_stream);
+ break_both_connections(bebob);
+ mutex_unlock(&bebob->mutex);
+ }
+
+ amdtp_stream_update(&bebob->rx_stream);
+ amdtp_stream_update(&bebob->tx_stream);
+}
+
+void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob)
+{
+ mutex_lock(&bebob->mutex);
+
+ if (amdtp_stream_pcm_running(&bebob->rx_stream))
+ amdtp_stream_pcm_abort(&bebob->rx_stream);
+ if (amdtp_stream_pcm_running(&bebob->tx_stream))
+ amdtp_stream_pcm_abort(&bebob->tx_stream);
+
+ amdtp_stream_stop(&bebob->rx_stream);
+ amdtp_stream_stop(&bebob->tx_stream);
+ destroy_both_connections(bebob);
+
+ mutex_unlock(&bebob->mutex);
+}
+
+static void
+set_stream_formation(u8 *buf, unsigned int len,
+ struct snd_bebob_stream_formation *formation)
+{
+ unsigned int e, channels, format;
+
+ for (e = 0; e < buf[4]; e++) {
+ channels = buf[5 + e * 2];
+ format = buf[6 + e * 2];
+
+ switch (format) {
+ /* PCM for IEC 60958-3 */
+ case 0x00:
+ /* PCM for Multi bit linear audio (raw) */
+ case 0x06:
+ formation->pcm += channels;
+ break;
+ /* MIDI comformant (MMA/AMEI RP-027) */
+ case 0x0d:
+ formation->midi += channels;
+ break;
+ /* PCM for Multi bit linear audio (DVD-audio) */
+ case 0x07:
+ /* IEC 61937-3 to 7 */
+ case 0x01:
+ case 0x02:
+ case 0x03:
+ case 0x04:
+ case 0x05:
+ /* High precision multi bit linear audio */
+ case 0x0c:
+ /* Don't care */
+ case 0xff:
+ default:
+ break; /* not supported */
+ }
+ }
+
+ return;
+}
+
+static int
+fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir,
+ unsigned short pid)
+{
+ static const unsigned int freq_table[] = {
+ [0x00] = 0, /* 22050 */
+ [0x01] = 1, /* 24000 */
+ [0x02] = 2, /* 32000 */
+ [0x03] = 3, /* 44100 */
+ [0x04] = 4, /* 48000 */
+ [0x05] = 6, /* 96000 */
+ [0x06] = 7, /* 176400 */
+ [0x07] = 8, /* 192000 */
+ [0x0a] = 5 /* 88200 */
+ };
+
+ u8 *buf;
+ struct snd_bebob_stream_formation *formations;
+ unsigned int i, index, len, eid;
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES];
+ int err;
+
+ buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ if (dir == AVC_BRIDGECO_PLUG_DIR_IN)
+ formations = bebob->rx_stream_formations;
+ else
+ formations = bebob->tx_stream_formations;
+
+ for (eid = 0, index = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) {
+ len = FORMAT_MAXIMUM_LENGTH;
+
+ memset(buf, 0, len);
+ avc_bridgeco_fill_unit_addr(addr, dir,
+ AVC_BRIDGECO_PLUG_UNIT_ISOC, pid);
+ err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr,
+ eid, buf, &len);
+ if (err < 0)
+ goto end;
+ else if (len < 3)
+ break;
+ /*
+ * this module can support a hierarchy combination that:
+ * Root: Audio and Music (0x90)
+ * Level 1: AM824 Compound (0x40)
+ */
+ else if ((buf[0] != 0x90) || (buf[1] != 0x40))
+ break;
+
+ /* check sampling rate */
+ index = -1;
+ for (i = 0; i < sizeof(freq_table); i++) {
+ if (i == buf[2])
+ index = freq_table[i];
+ }
+ if (index < 0)
+ break;
+
+ /* parse and set stream formation */
+ set_stream_formation(buf, len, &formations[index]);
+ }
+end:
+ kfree(buf);
+ return err;
+}
+
+static int
+seek_msu_sync_input_plug(struct snd_bebob *bebob)
+{
+ u8 plugs[AVC_PLUG_INFO_BUF_COUNT], addr[AVC_BRIDGECO_ADDR_BYTES];
+ unsigned int i, type;
+ int err;
+
+ /* get information about Music Sub Unit */
+ err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs);
+ if (err < 0)
+ goto end;
+
+ /* seek destination plugs for 'MSU sync input' */
+ bebob->sync_input_plug = -1;
+ for (i = 0; i < plugs[0]; i++) {
+ avc_bridgeco_fill_subunit_addr(addr, 0x60,
+ AVC_BRIDGECO_PLUG_DIR_IN, i);
+ err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
+ if (err < 0)
+ goto end;
+
+ if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC)
+ bebob->sync_input_plug = i;
+ }
+end:
+ return err;
+}
+
+/* In this function, 2 means input and output */
+int snd_bebob_stream_discover(struct snd_bebob *bebob)
+{
+ u8 plugs[AVC_PLUG_INFO_BUF_COUNT], addr[AVC_BRIDGECO_ADDR_BYTES];
+ enum avc_bridgeco_plug_type type;
+ unsigned int i;
+ int err;
+
+ /* the number of plugs for isoc in/out, ext in/out */
+ err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs);
+ if (err < 0)
+ goto end;
+
+ /*
+ * This module supports one ISOC input plug and one ISOC output plug
+ * then ignores the others.
+ */
+ if (plugs[0] == 0) {
+ err = -EIO;
+ goto end;
+ }
+ avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN,
+ AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
+ err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
+ if (err < 0)
+ goto end;
+ else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) {
+ err = -EIO;
+ goto end;
+ }
+
+ if (plugs[1] == 0) {
+ err = -EIO;
+ goto end;
+ }
+ avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT,
+ AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
+ err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
+ if (err < 0)
+ goto end;
+ else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) {
+ err = -EIO;
+ goto end;
+ }
+
+ /* store formations */
+ for (i = 0; i < 2; i++) {
+ err = fill_stream_formations(bebob, i, 0);
+ if (err < 0)
+ goto end;
+ }
+
+ /* count external input plugs for MIDI */
+ bebob->midi_input_ports = 0;
+ for (i = 0; i < plugs[2]; i++) {
+ avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN,
+ AVC_BRIDGECO_PLUG_UNIT_EXT, i);
+ err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
+ if (err < 0)
+ goto end;
+ else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI)
+ bebob->midi_input_ports++;
+ }
+
+ /* count external output plugs for MIDI */
+ bebob->midi_output_ports = 0;
+ for (i = 0; i < plugs[3]; i++) {
+ avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT,
+ AVC_BRIDGECO_PLUG_UNIT_EXT, i);
+ err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
+ if (err < 0)
+ goto end;
+ else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI)
+ bebob->midi_output_ports++;
+ }
+
+ /* for check source of clock later */
+ err = seek_msu_sync_input_plug(bebob);
+end:
+ return err;
+}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 28/38] bebob: Add proc interface for debugging purpose
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (26 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 27/38] bebob: Add commands and connections/streams management Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 29/38] bebob: Add MIDI interface Takashi Sakamoto
` (10 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds proc interface to get information for debugging.
- firmware information
- stream formation
- current clock source and sampling rate
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/bebob/Makefile | 2 +-
sound/firewire/bebob/bebob.c | 2 +
sound/firewire/bebob/bebob.h | 3 +
sound/firewire/bebob/bebob_proc.c | 136 ++++++++++++++++++++++++++++++++++++++
4 files changed, 142 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/bebob/bebob_proc.c
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index 5cece62..757c40e 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,2 +1,2 @@
-snd-bebob-objs := bebob_command.o bebob_stream.o bebob.o
+snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index dbb897a..4ecf14c 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -168,6 +168,8 @@ bebob_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ snd_bebob_proc_init(bebob);
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0) {
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 125dbea..3abe2d2 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -20,6 +20,7 @@
#include <sound/core.h>
#include <sound/initval.h>
+#include <sound/info.h>
#include "../lib.h"
#include "../fcp.h"
@@ -174,6 +175,8 @@ int snd_bebob_stream_stop_duplex(struct snd_bebob *bebob);
void snd_bebob_stream_update_duplex(struct snd_bebob *bebob);
void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob);
+void snd_bebob_proc_init(struct snd_bebob *bebob);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_proc.c b/sound/firewire/bebob/bebob_proc.c
new file mode 100644
index 0000000..40099a5
--- /dev/null
+++ b/sound/firewire/bebob/bebob_proc.c
@@ -0,0 +1,136 @@
+/*
+ * bebob_proc.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+/* contents of information register */
+struct hw_info {
+ u64 manufacturer;
+ u32 protocol_ver;
+ u32 bld_ver;
+ u32 guid[2];
+ u32 model_id;
+ u32 model_rev;
+ u64 fw_date;
+ u64 fw_time;
+ u32 fw_id;
+ u32 fw_ver;
+ u32 base_addr;
+ u32 max_size;
+ u64 bld_date;
+ u64 bld_time;
+/* may not used in product
+ u64 dbg_date;
+ u64 dbg_time;
+ u32 dbg_id;
+ u32 dbg_version;
+*/
+} __packed;
+
+static void
+proc_read_hw_info(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_bebob *bebob = entry->private_data;
+ struct hw_info *info;
+ int err;
+
+ info = kzalloc(sizeof(struct hw_info), GFP_KERNEL);
+ if (info == NULL)
+ return;
+
+ err = snd_bebob_read_block(bebob->unit, 0,
+ info, sizeof(struct hw_info));
+ if (err < 0)
+ goto end;
+
+ snd_iprintf(buffer, "Manufacturer:\t%.8s\n",
+ (char *)&info->manufacturer);
+ snd_iprintf(buffer, "Protocol Ver:\t%d\n", info->protocol_ver);
+ snd_iprintf(buffer, "Build Ver:\t%d\n", info->bld_ver);
+ snd_iprintf(buffer, "GUID:\t\t0x%.8X%.8X\n",
+ info->guid[0], info->guid[1]);
+ snd_iprintf(buffer, "Model ID:\t0x%02X\n", info->model_id);
+ snd_iprintf(buffer, "Model Rev:\t%d\n", info->model_rev);
+ snd_iprintf(buffer, "Firmware Date:\t%.8s\n", (char *)&info->fw_date);
+ snd_iprintf(buffer, "Firmware Time:\t%.8s\n", (char *)&info->fw_time);
+ snd_iprintf(buffer, "Firmware ID:\t0x%X\n", info->fw_id);
+ snd_iprintf(buffer, "Firmware Ver:\t%d\n", info->fw_ver);
+ snd_iprintf(buffer, "Base Addr:\t0x%X\n", info->base_addr);
+ snd_iprintf(buffer, "Max Size:\t%d\n", info->max_size);
+ snd_iprintf(buffer, "Loader Date:\t%.8s\n", (char *)&info->bld_date);
+ snd_iprintf(buffer, "Loader Time:\t%.8s\n", (char *)&info->bld_time);
+
+end:
+ kfree(info);
+ return;
+}
+
+static void
+proc_read_formation(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_bebob *bebob = entry->private_data;
+ struct snd_bebob_stream_formation *formation;
+ unsigned int i;
+
+ snd_iprintf(buffer, "Output Stream from device:\n");
+ snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");
+ formation = bebob->tx_stream_formations;
+ for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ snd_iprintf(buffer,
+ "\t%d\t%d\t%d\n", snd_bebob_rate_table[i],
+ formation[i].pcm, formation[i].midi);
+ }
+
+ snd_iprintf(buffer, "Input Stream to device:\n");
+ snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");
+ formation = bebob->rx_stream_formations;
+ for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ snd_iprintf(buffer,
+ "\t%d\t%d\t%d\n", snd_bebob_rate_table[i],
+ formation[i].pcm, formation[i].midi);
+ }
+
+ return;
+}
+
+static void
+proc_read_clock(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_bebob *bebob = entry->private_data;
+ unsigned int rate;
+ bool internal;
+
+ if (snd_bebob_stream_get_rate(bebob, &rate) < 0)
+ return;
+ if (snd_bebob_stream_check_internal_clock(bebob, &internal) < 0)
+ return;
+
+ snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)",
+ (internal) ? "Internal" : "External",
+ bebob->sync_input_plug);
+ snd_iprintf(buffer, "Sampling rate: %d\n", rate);
+}
+
+void snd_bebob_proc_init(struct snd_bebob *bebob)
+{
+ struct snd_info_entry *entry;
+
+ if (!snd_card_proc_new(bebob->card, "#firmware", &entry))
+ snd_info_set_text_ops(entry, bebob, proc_read_hw_info);
+
+ if (!snd_card_proc_new(bebob->card, "#formation", &entry))
+ snd_info_set_text_ops(entry, bebob, proc_read_formation);
+
+ if (!snd_card_proc_new(bebob->card, "#clock", &entry))
+ snd_info_set_text_ops(entry, bebob, proc_read_clock);
+
+ return;
+}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 29/38] bebob: Add MIDI interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (27 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 28/38] bebob: Add proc interface for debugging purpose Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 30/38] bebob: Add PCM interface Takashi Sakamoto
` (9 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds a functionality to capture/playback MIDI messages.
When no AMDTP streams are running, this module starts AMDTP stream at current
sampling rate for MIDI stream.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 1 +
sound/firewire/bebob/Makefile | 3 +-
sound/firewire/bebob/bebob.c | 7 ++
sound/firewire/bebob/bebob.h | 3 +
sound/firewire/bebob/bebob_midi.c | 134 ++++++++++++++++++++++++++++++++++++++
5 files changed, 147 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/bebob/bebob_midi.c
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index a2bf0cf..ba3ae4e 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -79,6 +79,7 @@ config SND_FIREWORKS
config SND_BEBOB
tristate "BridgeCo DM1000/1500 with BeBoB firmware"
select SND_FIREWIRE_LIB
+ select SND_RAWMIDI
help
Say Y here to include support for FireWire devices based
on BridgeCo DM1000/1500 with BeBoB firmware:
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index 757c40e..1e39e59 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,2 +1,3 @@
-snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob.o
+snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
+ bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 4ecf14c..0802732 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -170,6 +170,13 @@ bebob_probe(struct fw_unit *unit,
snd_bebob_proc_init(bebob);
+ if ((bebob->midi_input_ports > 0) ||
+ (bebob->midi_output_ports > 0)) {
+ err = snd_bebob_create_midi_devices(bebob);
+ if (err < 0)
+ goto error;
+ }
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0) {
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 3abe2d2..6efc048 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -21,6 +21,7 @@
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/info.h>
+#include <sound/rawmidi.h>
#include "../lib.h"
#include "../fcp.h"
@@ -177,6 +178,8 @@ void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob);
void snd_bebob_proc_init(struct snd_bebob *bebob);
+int snd_bebob_create_midi_devices(struct snd_bebob *bebob);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c
new file mode 100644
index 0000000..36ef88b
--- /dev/null
+++ b/sound/firewire/bebob/bebob_midi.c
@@ -0,0 +1,134 @@
+/*
+ * bebob_midi.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "bebob.h"
+
+static int midi_capture_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_bebob *bebob = substream->rmidi->private_data;
+ return snd_bebob_stream_start_duplex(bebob, &bebob->tx_stream, 0);
+}
+
+static int midi_playback_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_bebob *bebob = substream->rmidi->private_data;
+ return snd_bebob_stream_start_duplex(bebob, &bebob->rx_stream, 0);
+}
+
+static int midi_close(struct snd_rawmidi_substream *substream)
+{
+ struct snd_bebob *bebob = substream->rmidi->private_data;
+ return snd_bebob_stream_stop_duplex(bebob);
+}
+
+static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_bebob *bebob = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bebob->lock, flags);
+
+ if (up)
+ amdtp_stream_midi_trigger(&bebob->tx_stream,
+ substrm->number, substrm);
+ else
+ amdtp_stream_midi_trigger(&bebob->tx_stream,
+ substrm->number, NULL);
+
+ spin_unlock_irqrestore(&bebob->lock, flags);
+
+ return;
+}
+
+static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_bebob *bebob = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bebob->lock, flags);
+
+ if (up)
+ amdtp_stream_midi_trigger(&bebob->rx_stream,
+ substrm->number, substrm);
+ else
+ amdtp_stream_midi_trigger(&bebob->rx_stream,
+ substrm->number, NULL);
+
+ spin_unlock_irqrestore(&bebob->lock, flags);
+
+ return;
+}
+
+static struct snd_rawmidi_ops midi_capture_ops = {
+ .open = midi_capture_open,
+ .close = midi_close,
+ .trigger = midi_capture_trigger,
+};
+
+static struct snd_rawmidi_ops midi_playback_ops = {
+ .open = midi_playback_open,
+ .close = midi_close,
+ .trigger = midi_playback_trigger,
+};
+
+static void set_midi_substream_names(struct snd_bebob *bebob,
+ struct snd_rawmidi_str *str)
+{
+ struct snd_rawmidi_substream *subs;
+
+ list_for_each_entry(subs, &str->substreams, list) {
+ snprintf(subs->name, sizeof(subs->name),
+ "%s MIDI %d",
+ bebob->card->shortname, subs->number + 1);
+ }
+}
+
+int snd_bebob_create_midi_devices(struct snd_bebob *bebob)
+{
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_str *str;
+ int err;
+
+ /* create midi ports */
+ err = snd_rawmidi_new(bebob->card, bebob->card->driver, 0,
+ bebob->midi_output_ports, bebob->midi_input_ports,
+ &rmidi);
+ if (err < 0)
+ return err;
+
+ snprintf(rmidi->name, sizeof(rmidi->name),
+ "%s MIDI", bebob->card->shortname);
+ rmidi->private_data = bebob;
+
+ if (bebob->midi_input_ports > 0) {
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
+ &midi_capture_ops);
+
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
+
+ set_midi_substream_names(bebob, str);
+ }
+
+ if (bebob->midi_output_ports > 0) {
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
+ &midi_playback_ops);
+
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
+
+ set_midi_substream_names(bebob, str);
+ }
+
+ if ((bebob->midi_output_ports > 0) && (bebob->midi_input_ports > 0))
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
+
+ return 0;
+}
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 30/38] bebob: Add PCM interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (28 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 29/38] bebob: Add MIDI interface Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 31/38] bebob: Add hwdep interface Takashi Sakamoto
` (8 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit adds a functionality to capture/playback PCM samples.
When AMDTP stream is already running for PCM or the source of clock is not
internal, available sampling rate is limited at current one.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 1 +
sound/firewire/bebob/Makefile | 1 +
sound/firewire/bebob/bebob.c | 4 +
sound/firewire/bebob/bebob.h | 4 +
sound/firewire/bebob/bebob_pcm.c | 421 +++++++++++++++++++++++++++++++++++++++
5 files changed, 431 insertions(+)
create mode 100644 sound/firewire/bebob/bebob_pcm.c
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index ba3ae4e..3da4b60 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -80,6 +80,7 @@ config SND_BEBOB
tristate "BridgeCo DM1000/1500 with BeBoB firmware"
select SND_FIREWIRE_LIB
select SND_RAWMIDI
+ select SND_PCM
help
Say Y here to include support for FireWire devices based
on BridgeCo DM1000/1500 with BeBoB firmware:
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index 1e39e59..533718a 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,3 +1,4 @@
snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
+ bebob_pcm.o \
bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 0802732..f7c8a73 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -177,6 +177,10 @@ bebob_probe(struct fw_unit *unit,
goto error;
}
+ err = snd_bebob_create_pcm_devices(bebob);
+ if (err < 0)
+ goto error;
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0) {
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 6efc048..c16230e 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -22,6 +22,8 @@
#include <sound/initval.h>
#include <sound/info.h>
#include <sound/rawmidi.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
#include "../lib.h"
#include "../fcp.h"
@@ -180,6 +182,8 @@ void snd_bebob_proc_init(struct snd_bebob *bebob);
int snd_bebob_create_midi_devices(struct snd_bebob *bebob);
+int snd_bebob_create_pcm_devices(struct snd_bebob *bebob);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c
new file mode 100644
index 0000000..f6a2b5b
--- /dev/null
+++ b/sound/firewire/bebob/bebob_pcm.c
@@ -0,0 +1,421 @@
+/*
+ * bebob_pcm.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+static int
+hw_rule_rate(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule,
+ struct snd_bebob *bebob,
+ struct snd_bebob_stream_formation *formations)
+{
+ struct snd_interval *r =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ const struct snd_interval *c =
+ hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval t = {
+ .min = UINT_MAX, .max = 0, .integer = 1
+ };
+ unsigned int i;
+
+ for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ /* entry is invalid */
+ if (formations[i].pcm == 0)
+ continue;
+
+ if (!snd_interval_test(c, formations[i].pcm))
+ continue;
+
+ t.min = min(t.min, snd_bebob_rate_table[i]);
+ t.max = max(t.max, snd_bebob_rate_table[i]);
+
+ }
+ return snd_interval_refine(r, &t);
+}
+
+static int
+hw_rule_channels(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule,
+ struct snd_bebob *bebob,
+ struct snd_bebob_stream_formation *formations)
+{
+ struct snd_interval *c =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ const struct snd_interval *r =
+ hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval t = {
+ .min = UINT_MAX, .max = 0, .integer = 1
+ };
+
+ unsigned int i;
+
+ for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ /* entry is invalid */
+ if (formations[i].pcm == 0)
+ continue;
+
+ if (!snd_interval_test(r, snd_bebob_rate_table[i]))
+ continue;
+
+ t.min = min(t.min, formations[i].pcm);
+ t.max = max(t.max, formations[i].pcm);
+ }
+
+ return snd_interval_refine(c, &t);
+}
+
+static inline int
+hw_rule_capture_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_bebob *bebob = rule->private;
+ return hw_rule_rate(params, rule, bebob,
+ bebob->tx_stream_formations);
+}
+
+static inline int
+hw_rule_playback_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_bebob *bebob = rule->private;
+ return hw_rule_rate(params, rule, bebob,
+ bebob->rx_stream_formations);
+}
+
+static inline int
+hw_rule_capture_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_bebob *bebob = rule->private;
+ return hw_rule_channels(params, rule, bebob,
+ bebob->tx_stream_formations);
+}
+
+static inline int
+hw_rule_playback_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_bebob *bebob = rule->private;
+ return hw_rule_channels(params, rule, bebob,
+ bebob->rx_stream_formations);
+}
+
+static void
+prepare_channels(struct snd_pcm_hardware *hw,
+ struct snd_bebob_stream_formation *formations)
+{
+ unsigned int i;
+
+ for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ /* entry has no PCM channels */
+ if (formations[i].pcm == 0)
+ continue;
+
+ hw->channels_min = min(hw->channels_min, formations[i].pcm);
+ hw->channels_max = max(hw->channels_max, formations[i].pcm);
+ }
+
+ return;
+}
+
+static void
+prepare_rates(struct snd_pcm_hardware *hw,
+ struct snd_bebob_stream_formation *formations)
+{
+ unsigned int i;
+
+ for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ /* entry has no PCM channels */
+ if (formations[i].pcm == 0)
+ continue;
+
+ hw->rate_min = min(hw->rate_min, snd_bebob_rate_table[i]);
+ hw->rate_max = max(hw->rate_max, snd_bebob_rate_table[i]);
+ hw->rates |= snd_pcm_rate_to_rate_bit(snd_bebob_rate_table[i]);
+ }
+
+ return;
+}
+
+static int
+pcm_init_hw_params(struct snd_bebob *bebob,
+ struct snd_pcm_substream *substream)
+{
+ int err;
+
+ static const struct snd_pcm_hardware hw = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_BATCH |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_SYNC_START |
+ SNDRV_PCM_INFO_FIFO_IN_FRAMES |
+ SNDRV_PCM_INFO_JOINT_DUPLEX |
+ /* for Open Sound System compatibility */
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER,
+ /* set up later */
+ .rates = 0,
+ .rate_min = UINT_MAX,
+ .rate_max = 0,
+ /* set up later */
+ .channels_min = UINT_MAX,
+ .channels_max = 0,
+ .buffer_bytes_max = 1024 * 1024 * 1024,
+ .period_bytes_min = 256,
+ .period_bytes_max = 1024 * 1024 * 1024 / 2,
+ .periods_min = 2,
+ .periods_max = 32,
+ .fifo_size = 0,
+ };
+
+ substream->runtime->hw = hw;
+ substream->runtime->delay = substream->runtime->hw.fifo_size;
+
+ /* add rule between channels and sampling rate */
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ prepare_rates(&substream->runtime->hw,
+ bebob->tx_stream_formations);
+ prepare_channels(&substream->runtime->hw,
+ bebob->tx_stream_formations);
+ substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_capture_channels, bebob,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ hw_rule_capture_rate, bebob,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ } else {
+ prepare_rates(&substream->runtime->hw,
+ bebob->rx_stream_formations);
+ prepare_channels(&substream->runtime->hw,
+ bebob->rx_stream_formations);
+ substream->runtime->hw.formats = AMDTP_OUT_PCM_FORMAT_BITS;
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_playback_channels, bebob,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+ snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ hw_rule_playback_rate, bebob,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ }
+
+ /* AM824 in IEC 61883-6 can deliver 24bit data */
+ err = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 32, 24);
+ if (err < 0)
+ goto end;
+
+ /*
+ * AMDTP functionality in firewire-lib require periods to be aligned to
+ * 16 bit, or 24bit inner 32bit.
+ */
+ err = snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
+ if (err < 0)
+ goto end;
+
+ /* time for period constraint */
+ err = snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+ 500, UINT_MAX);
+ if (err < 0)
+ goto end;
+
+ err = 0;
+end:
+ return err;
+}
+
+static int
+pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_bebob *bebob = substream->private_data;
+ unsigned int sampling_rate;
+ bool internal;
+ int err;
+
+ err = pcm_init_hw_params(bebob, substream);
+ if (err < 0)
+ goto end;
+
+ err = snd_bebob_stream_check_internal_clock(bebob, &internal);
+ if (err < 0)
+ goto end;
+
+ /*
+ * When source of clock is internal or any PCM stream are running,
+ * the available sampling rate is limited at current sampling rate.
+ */
+ if (!internal ||
+ amdtp_stream_pcm_running(&bebob->tx_stream) ||
+ amdtp_stream_pcm_running(&bebob->rx_stream)) {
+ err = snd_bebob_stream_get_rate(bebob, &sampling_rate);
+ if (err < 0)
+ goto end;
+
+ substream->runtime->hw.rate_min = sampling_rate;
+ substream->runtime->hw.rate_max = sampling_rate;
+ }
+
+ snd_pcm_set_sync(substream);
+
+end:
+ return err;
+}
+
+static int
+pcm_close(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+static int
+pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ return snd_pcm_lib_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(hw_params));
+}
+
+static int
+pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_bebob *bebob = substream->private_data;
+
+ snd_bebob_stream_stop_duplex(bebob);
+
+ return snd_pcm_lib_free_vmalloc_buffer(substream);
+}
+
+static int
+pcm_capture_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_bebob *bebob = substream->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+
+ err = snd_bebob_stream_start_duplex(bebob, &bebob->tx_stream,
+ runtime->rate);
+ if (err < 0)
+ goto end;
+
+ amdtp_stream_set_pcm_format(&bebob->tx_stream, runtime->format);
+ amdtp_stream_pcm_prepare(&bebob->tx_stream);
+end:
+ return err;
+}
+static int
+pcm_playback_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_bebob *bebob = substream->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+
+ err = snd_bebob_stream_start_duplex(bebob, &bebob->rx_stream,
+ runtime->rate);
+ if (err < 0)
+ goto end;
+
+ amdtp_stream_set_pcm_format(&bebob->rx_stream, runtime->format);
+ amdtp_stream_pcm_prepare(&bebob->rx_stream);
+end:
+ return err;
+}
+
+static int
+pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_bebob *bebob = substream->private_data;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ amdtp_stream_pcm_trigger(&bebob->tx_stream, substream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ amdtp_stream_pcm_trigger(&bebob->tx_stream, NULL);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+static int
+pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_bebob *bebob = substream->private_data;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ amdtp_stream_pcm_trigger(&bebob->rx_stream, substream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ amdtp_stream_pcm_trigger(&bebob->rx_stream, NULL);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static snd_pcm_uframes_t
+pcm_capture_pointer(struct snd_pcm_substream *sbstrm)
+{
+ struct snd_bebob *bebob = sbstrm->private_data;
+ return amdtp_stream_pcm_pointer(&bebob->tx_stream);
+}
+static snd_pcm_uframes_t
+pcm_playback_pointer(struct snd_pcm_substream *sbstrm)
+{
+ struct snd_bebob *bebob = sbstrm->private_data;
+ return amdtp_stream_pcm_pointer(&bebob->rx_stream);
+}
+
+static struct snd_pcm_ops pcm_capture_ops = {
+ .open = pcm_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_capture_prepare,
+ .trigger = pcm_capture_trigger,
+ .pointer = pcm_capture_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+};
+static struct snd_pcm_ops pcm_playback_ops = {
+ .open = pcm_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
+ .prepare = pcm_playback_prepare,
+ .trigger = pcm_playback_trigger,
+ .pointer = pcm_playback_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
+};
+
+int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
+{
+ struct snd_pcm *pcm;
+ int err;
+
+ err = snd_pcm_new(bebob->card, bebob->card->driver, 0, 1, 1, &pcm);
+ if (err < 0)
+ goto end;
+
+ pcm->private_data = bebob;
+ snprintf(pcm->name, sizeof(pcm->name),
+ "%s PCM", bebob->card->shortname);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops);
+
+end:
+ return err;
+}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 31/38] bebob: Add hwdep interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (29 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 30/38] bebob: Add PCM interface Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 32/38] bebob: Prepare for device specific operations Takashi Sakamoto
` (7 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This interface is designed for mixer/control application. To use hwdep
interface, the application can get information about firewire node, can
lock/unlock kernel streaming and can get notification at starting/stopping
kernel streaming.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
include/uapi/sound/asound.h | 3 +-
include/uapi/sound/firewire.h | 1 +
sound/firewire/Kconfig | 1 +
sound/firewire/bebob/Makefile | 2 +-
sound/firewire/bebob/bebob.c | 5 +
sound/firewire/bebob/bebob.h | 13 +++
sound/firewire/bebob/bebob_hwdep.c | 197 ++++++++++++++++++++++++++++++++++++
sound/firewire/bebob/bebob_midi.c | 28 ++++-
sound/firewire/bebob/bebob_pcm.c | 16 ++-
sound/firewire/bebob/bebob_stream.c | 39 +++++++
10 files changed, 296 insertions(+), 9 deletions(-)
create mode 100644 sound/firewire/bebob/bebob_hwdep.c
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 5dfbfdf..2249483 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -95,9 +95,10 @@ enum {
SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */
SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */
SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */
+ SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */
/* Don't forget to change the following: */
- SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREWORKS
+ SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_BEBOB
};
struct snd_hwdep_info {
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index 910ed34..77a594d 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -53,6 +53,7 @@ union snd_firewire_event {
#define SNDRV_FIREWIRE_TYPE_DICE 1
#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
+#define SNDRV_FIREWIRE_TYPE_BEBOB 3
/* Fireworks, AV/C, RME, MOTU, ... */
struct snd_firewire_get_info {
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 3da4b60..304f49e 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -81,6 +81,7 @@ config SND_BEBOB
select SND_FIREWIRE_LIB
select SND_RAWMIDI
select SND_PCM
+ select SND_HWDEP
help
Say Y here to include support for FireWire devices based
on BridgeCo DM1000/1500 with BeBoB firmware:
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index 533718a..7808777 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,4 +1,4 @@
snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
- bebob_pcm.o \
+ bebob_pcm.o bebob_hwdep.o \
bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index f7c8a73..881bd1d 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -155,6 +155,7 @@ bebob_probe(struct fw_unit *unit,
bebob->card_index = -1;
mutex_init(&bebob->mutex);
spin_lock_init(&bebob->lock);
+ init_waitqueue_head(&bebob->hwdep_wait);
err = name_device(bebob, entry->vendor_id);
if (err < 0)
@@ -181,6 +182,10 @@ bebob_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ err = snd_bebob_create_hwdep_device(bebob);
+ if (err < 0)
+ goto error;
+
snd_card_set_dev(card, &unit->device);
err = snd_card_register(card);
if (err < 0) {
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index c16230e..d06f3f3 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -24,6 +24,8 @@
#include <sound/rawmidi.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
+#include <sound/firewire.h>
+#include <sound/hwdep.h>
#include "../lib.h"
#include "../fcp.h"
@@ -69,6 +71,11 @@ struct snd_bebob {
rx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES];
int sync_input_plug;
+
+ /* for uapi */
+ int dev_lock_count;
+ bool dev_lock_changed;
+ wait_queue_head_t hwdep_wait;
};
static inline int
@@ -178,12 +185,18 @@ int snd_bebob_stream_stop_duplex(struct snd_bebob *bebob);
void snd_bebob_stream_update_duplex(struct snd_bebob *bebob);
void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob);
+void snd_bebob_stream_lock_changed(struct snd_bebob *bebob);
+int snd_bebob_stream_lock_try(struct snd_bebob *bebob);
+void snd_bebob_stream_lock_release(struct snd_bebob *bebob);
+
void snd_bebob_proc_init(struct snd_bebob *bebob);
int snd_bebob_create_midi_devices(struct snd_bebob *bebob);
int snd_bebob_create_pcm_devices(struct snd_bebob *bebob);
+int snd_bebob_create_hwdep_device(struct snd_bebob *bebob);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_hwdep.c b/sound/firewire/bebob/bebob_hwdep.c
new file mode 100644
index 0000000..54937c0
--- /dev/null
+++ b/sound/firewire/bebob/bebob_hwdep.c
@@ -0,0 +1,197 @@
+/*
+ * bebob_hwdep.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+/*
+ * This codes give three functionality.
+ *
+ * 1.get firewire node infomation
+ * 2.get notification about starting/stopping stream
+ * 3.lock/unlock stream
+ */
+
+#include "bebob.h"
+
+static long
+hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
+ loff_t *offset)
+{
+ struct snd_bebob *bebob = hwdep->private_data;
+ DEFINE_WAIT(wait);
+ union snd_firewire_event event;
+
+ spin_lock_irq(&bebob->lock);
+
+ while (!bebob->dev_lock_changed) {
+ prepare_to_wait(&bebob->hwdep_wait, &wait, TASK_INTERRUPTIBLE);
+ spin_unlock_irq(&bebob->lock);
+ schedule();
+ finish_wait(&bebob->hwdep_wait, &wait);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ spin_lock_irq(&bebob->lock);
+ }
+
+ memset(&event, 0, sizeof(event));
+ if (bebob->dev_lock_changed) {
+ event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
+ event.lock_status.status = (bebob->dev_lock_count > 0);
+ bebob->dev_lock_changed = false;
+
+ count = min_t(long, count, sizeof(event.lock_status));
+ }
+
+ spin_unlock_irq(&bebob->lock);
+
+ if (copy_to_user(buf, &event, count))
+ return -EFAULT;
+
+ return count;
+}
+
+static unsigned int
+hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait)
+{
+ struct snd_bebob *bebob = hwdep->private_data;
+ unsigned int events;
+
+ poll_wait(file, &bebob->hwdep_wait, wait);
+
+ spin_lock_irq(&bebob->lock);
+ if (bebob->dev_lock_changed)
+ events = POLLIN | POLLRDNORM;
+ else
+ events = 0;
+ spin_unlock_irq(&bebob->lock);
+
+ return events;
+}
+
+static int
+hwdep_get_info(struct snd_bebob *bebob, void __user *arg)
+{
+ struct fw_device *dev = fw_parent_device(bebob->unit);
+ struct snd_firewire_get_info info;
+
+ memset(&info, 0, sizeof(info));
+ info.type = SNDRV_FIREWIRE_TYPE_BEBOB;
+ info.card = dev->card->index;
+ *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]);
+ *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]);
+ strlcpy(info.device_name, dev_name(&dev->device),
+ sizeof(info.device_name));
+
+ if (copy_to_user(arg, &info, sizeof(info)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int
+hwdep_lock(struct snd_bebob *bebob)
+{
+ int err;
+
+ spin_lock_irq(&bebob->lock);
+
+ if (bebob->dev_lock_count == 0) {
+ bebob->dev_lock_count = -1;
+ err = 0;
+ } else
+ err = -EBUSY;
+
+ spin_unlock_irq(&bebob->lock);
+
+ return err;
+}
+
+static int
+hwdep_unlock(struct snd_bebob *bebob)
+{
+ int err;
+
+ spin_lock_irq(&bebob->lock);
+
+ if (bebob->dev_lock_count == -1) {
+ bebob->dev_lock_count = 0;
+ err = 0;
+ } else
+ err = -EBADFD;
+
+ spin_unlock_irq(&bebob->lock);
+
+ return err;
+}
+
+static int
+hwdep_release(struct snd_hwdep *hwdep, struct file *file)
+{
+ struct snd_bebob *bebob = hwdep->private_data;
+
+ spin_lock_irq(&bebob->lock);
+ if (bebob->dev_lock_count == -1)
+ bebob->dev_lock_count = 0;
+ spin_unlock_irq(&bebob->lock);
+
+ return 0;
+}
+
+static int
+hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct snd_bebob *bebob = hwdep->private_data;
+
+ switch (cmd) {
+ case SNDRV_FIREWIRE_IOCTL_GET_INFO:
+ return hwdep_get_info(bebob, (void __user *)arg);
+ case SNDRV_FIREWIRE_IOCTL_LOCK:
+ return hwdep_lock(bebob);
+ case SNDRV_FIREWIRE_IOCTL_UNLOCK:
+ return hwdep_unlock(bebob);
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+#ifdef CONFIG_COMPAT
+static int
+hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return hwdep_ioctl(hwdep, file, cmd,
+ (unsigned long)compat_ptr(arg));
+}
+#else
+#define hwdep_compat_ioctl NULL
+#endif
+
+static const struct snd_hwdep_ops hwdep_ops = {
+ .read = hwdep_read,
+ .release = hwdep_release,
+ .poll = hwdep_poll,
+ .ioctl = hwdep_ioctl,
+ .ioctl_compat = hwdep_compat_ioctl,
+};
+
+int snd_bebob_create_hwdep_device(struct snd_bebob *bebob)
+{
+ struct snd_hwdep *hwdep;
+ int err;
+
+ err = snd_hwdep_new(bebob->card, "BeBoB", 0, &hwdep);
+ if (err < 0)
+ goto end;
+ strcpy(hwdep->name, "BeBoB");
+ hwdep->iface = SNDRV_HWDEP_IFACE_FW_BEBOB;
+ hwdep->ops = hwdep_ops;
+ hwdep->private_data = bebob;
+ hwdep->exclusive = true;
+end:
+ return err;
+}
+
diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c
index 36ef88b..446c5c9 100644
--- a/sound/firewire/bebob/bebob_midi.c
+++ b/sound/firewire/bebob/bebob_midi.c
@@ -11,19 +11,41 @@
static int midi_capture_open(struct snd_rawmidi_substream *substream)
{
struct snd_bebob *bebob = substream->rmidi->private_data;
- return snd_bebob_stream_start_duplex(bebob, &bebob->tx_stream, 0);
+ int err;
+
+ err = snd_bebob_stream_lock_try(bebob);
+ if (err < 0)
+ goto end;
+
+ err = snd_bebob_stream_start_duplex(bebob, &bebob->tx_stream, 0);
+ if (err < 0)
+ snd_bebob_stream_lock_release(bebob);
+end:
+ return err;
}
static int midi_playback_open(struct snd_rawmidi_substream *substream)
{
struct snd_bebob *bebob = substream->rmidi->private_data;
- return snd_bebob_stream_start_duplex(bebob, &bebob->rx_stream, 0);
+ int err;
+
+ err = snd_bebob_stream_lock_try(bebob);
+ if (err < 0)
+ goto end;
+
+ err = snd_bebob_stream_start_duplex(bebob, &bebob->rx_stream, 0);
+ if (err < 0)
+ snd_bebob_stream_lock_release(bebob);
+end:
+ return err;
}
static int midi_close(struct snd_rawmidi_substream *substream)
{
struct snd_bebob *bebob = substream->rmidi->private_data;
- return snd_bebob_stream_stop_duplex(bebob);
+ snd_bebob_stream_stop_duplex(bebob);
+ snd_bebob_stream_lock_release(bebob);
+ return 0;
}
static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c
index f6a2b5b..525c4ac 100644
--- a/sound/firewire/bebob/bebob_pcm.c
+++ b/sound/firewire/bebob/bebob_pcm.c
@@ -239,13 +239,17 @@ pcm_open(struct snd_pcm_substream *substream)
bool internal;
int err;
- err = pcm_init_hw_params(bebob, substream);
+ err = snd_bebob_stream_lock_try(bebob);
if (err < 0)
goto end;
+ err = pcm_init_hw_params(bebob, substream);
+ if (err < 0)
+ goto err_locked;
+
err = snd_bebob_stream_check_internal_clock(bebob, &internal);
if (err < 0)
- goto end;
+ goto err_locked;
/*
* When source of clock is internal or any PCM stream are running,
@@ -256,21 +260,25 @@ pcm_open(struct snd_pcm_substream *substream)
amdtp_stream_pcm_running(&bebob->rx_stream)) {
err = snd_bebob_stream_get_rate(bebob, &sampling_rate);
if (err < 0)
- goto end;
+ goto err_locked;
substream->runtime->hw.rate_min = sampling_rate;
substream->runtime->hw.rate_max = sampling_rate;
}
snd_pcm_set_sync(substream);
-
end:
return err;
+err_locked:
+ snd_bebob_stream_lock_release(bebob);
+ return err;
}
static int
pcm_close(struct snd_pcm_substream *substream)
{
+ struct snd_bebob *bebob = substream->private_data;
+ snd_bebob_stream_lock_release(bebob);
return 0;
}
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 7c604d8..533d49a 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -771,3 +771,42 @@ int snd_bebob_stream_discover(struct snd_bebob *bebob)
end:
return err;
}
+
+void snd_bebob_stream_lock_changed(struct snd_bebob *bebob)
+{
+ bebob->dev_lock_changed = true;
+ wake_up(&bebob->hwdep_wait);
+}
+
+int snd_bebob_stream_lock_try(struct snd_bebob *bebob)
+{
+ int err;
+
+ spin_lock_irq(&bebob->lock);
+
+ /* user land lock this */
+ if (bebob->dev_lock_count < 0) {
+ err = -EBUSY;
+ goto end;
+ }
+
+ /* this is the first time */
+ if (bebob->dev_lock_count++ == 0)
+ snd_bebob_stream_lock_changed(bebob);
+ err = 0;
+end:
+ spin_unlock_irq(&bebob->lock);
+ return err;
+}
+
+void snd_bebob_stream_lock_release(struct snd_bebob *bebob)
+{
+ spin_lock_irq(&bebob->lock);
+
+ if (WARN_ON(bebob->dev_lock_count <= 0))
+ goto end;
+ if (--bebob->dev_lock_count == 0)
+ snd_bebob_stream_lock_changed(bebob);
+end:
+ spin_unlock_irq(&bebob->lock);
+}
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 32/38] bebob: Prepare for device specific operations
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (30 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 31/38] bebob: Add hwdep interface Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 33/38] bebob: Add support for Terratec PHASE, EWS series and Aureon Takashi Sakamoto
` (6 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit is for some devices which have its own operations or quirks.
Many functionality should be implemented in user land. Then this commit adds
functionality related to stream such as sampling frequency or clock source. For
help to debug, this commit adds the functionality to get metering information
if it's available.
To help these functionalities, this commit adds some AV/C commands defined in
'AV/C Audio Subunit Specification (1394TA).
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/bebob/Makefile | 3 +-
sound/firewire/bebob/bebob.c | 60 +++++++++++++++++----------
sound/firewire/bebob/bebob.h | 33 ++++++++++++++-
sound/firewire/bebob/bebob_command.c | 79 ++++++++++++++++++++++++++++++++++++
sound/firewire/bebob/bebob_pcm.c | 3 +-
sound/firewire/bebob/bebob_proc.c | 61 +++++++++++++++++++++++++---
sound/firewire/bebob/bebob_stream.c | 26 +++++++++---
7 files changed, 229 insertions(+), 36 deletions(-)
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index 7808777..e4b08e3 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,4 +1,3 @@
snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
- bebob_pcm.o bebob_hwdep.o \
- bebob.o
+ bebob_pcm.o bebob_hwdep.o bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 881bd1d..4ce8121 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -128,6 +128,7 @@ bebob_probe(struct fw_unit *unit,
{
struct snd_card *card;
struct snd_bebob *bebob;
+ const struct snd_bebob_spec *spec;
unsigned int card_index;
int err;
@@ -142,6 +143,12 @@ bebob_probe(struct fw_unit *unit,
goto end;
}
+ spec = (const struct snd_bebob_spec *)entry->driver_data;
+ if (spec == NULL) {
+ err = -ENOSYS;
+ goto end;
+ }
+
err = snd_card_create(index[card_index], id[card_index],
THIS_MODULE, sizeof(struct snd_bebob), &card);
if (err < 0)
@@ -153,6 +160,7 @@ bebob_probe(struct fw_unit *unit,
bebob->device = fw_parent_device(unit);
bebob->unit = unit;
bebob->card_index = -1;
+ bebob->spec = spec;
mutex_init(&bebob->mutex);
spin_lock_init(&bebob->lock);
init_waitqueue_head(&bebob->hwdep_wait);
@@ -221,52 +229,62 @@ static void bebob_remove(struct fw_unit *unit)
snd_card_free_when_closed(bebob->card);
}
+struct snd_bebob_rate_spec normal_rate_spec = {
+ .get = &snd_bebob_stream_get_rate,
+ .set = &snd_bebob_stream_set_rate
+};
+static const struct snd_bebob_spec spec_normal = {
+ .clock = NULL,
+ .rate = &normal_rate_spec,
+ .meter = NULL
+};
+
static const struct ieee1394_device_id bebob_id_table[] = {
/* Edirol, FA-66 */
- SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010049),
+ SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010049, &spec_normal),
/* Edirol, FA-101 */
- SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010048),
+ SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010048, &spec_normal),
/* Presonus, FIREBOX */
- SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010000),
+ SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010000, &spec_normal),
/* PreSonus, FIREPOD */
- SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010066),
+ SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010066, &spec_normal),
/* PreSonus, Inspire1394 */
- SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010001),
+ SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010001, &spec_normal),
/* BridgeCo, RDAudio1 */
- SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010048),
+ SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010048, &spec_normal),
/* BridgeCo, Audio5 */
- SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010049),
+ SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010049, &spec_normal),
/* Mackie, Onyx 820/1220/1620/1640 (Firewire I/O Card) */
- SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010065),
- SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067),
+ SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010065, &spec_normal),
+ SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067, &spec_normal),
/* Mackie, d.2 (Firewire Option) */
- SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067),
+ SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067, &spec_normal),
/* Stanton, ScratchAmp */
- SND_BEBOB_DEV_ENTRY(VEN_STANTON, 0x00000001),
+ SND_BEBOB_DEV_ENTRY(VEN_STANTON, 0x00000001, &spec_normal),
/* Tascam, IF-FW DM */
- SND_BEBOB_DEV_ENTRY(VEN_TASCAM, 0x00010067),
+ SND_BEBOB_DEV_ENTRY(VEN_TASCAM, 0x00010067, &spec_normal),
/* ApogeeElectronics, Rosetta 200/400 (X-FireWire card) */
/* ApogeeElectronics, DA/AD/DD-16X (X-FireWire card) */
- SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00010048),
+ SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00010048, &spec_normal),
/* ESI, Quatafire610 */
- SND_BEBOB_DEV_ENTRY(VEN_ESI, 0x00010064),
+ SND_BEBOB_DEV_ENTRY(VEN_ESI, 0x00010064, &spec_normal),
/* AcousticReality, eARMasterOne */
- SND_BEBOB_DEV_ENTRY(VEN_ACOUSTIC, 0x00000002),
+ SND_BEBOB_DEV_ENTRY(VEN_ACOUSTIC, 0x00000002, &spec_normal),
/* CME, MatrixKFW */
- SND_BEBOB_DEV_ENTRY(VEN_CME, 0x00030000),
+ SND_BEBOB_DEV_ENTRY(VEN_CME, 0x00030000, &spec_normal),
/* Phonic, HB 12/12 MkII/12 Universal */
/* Phonic, HB 18/18 MkII/18 Universal */
/* Phonic, HB 24/24 MkII/24 Universal */
/* Phonic, FireFly 202/302 */
- SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00000000),
+ SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00000000, &spec_normal),
/* Lynx, Aurora 8/16 (LT-FW) */
- SND_BEBOB_DEV_ENTRY(VEN_LYNX, 0x00000001),
+ SND_BEBOB_DEV_ENTRY(VEN_LYNX, 0x00000001, &spec_normal),
/* ICON, FireXon */
- SND_BEBOB_DEV_ENTRY(VEN_ICON, 0x00000001),
+ SND_BEBOB_DEV_ENTRY(VEN_ICON, 0x00000001, &spec_normal),
/* PrismSound, Orpheus */
- SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x00010048),
+ SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x00010048, &spec_normal),
/* PrismSound, ADA-8XR */
- SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x0000ada8),
+ SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x0000ada8, &spec_normal),
/* Ids are unknown but able to be supported */
/* Mackie, Digital X Bus x.200 */
/* Mackie, Digital X Bus x.400 */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index d06f3f3..7ff89fa 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -48,6 +48,28 @@ struct snd_bebob_stream_formation {
/* this is a lookup table for index of stream formations */
extern const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES];
+/* device specific operations */
+#define SND_BEBOB_CLOCK_INTERNAL "Internal"
+struct snd_bebob_clock_spec {
+ unsigned int num;
+ char **labels;
+ int (*get)(struct snd_bebob *bebob, unsigned int *id);
+};
+struct snd_bebob_rate_spec {
+ int (*get)(struct snd_bebob *bebob, unsigned int *rate);
+ int (*set)(struct snd_bebob *bebob, unsigned int rate);
+};
+struct snd_bebob_meter_spec {
+ unsigned int num;
+ char **labels;
+ int (*get)(struct snd_bebob *bebob, u32 *target, unsigned int size);
+};
+struct snd_bebob_spec {
+ struct snd_bebob_clock_spec *clock;
+ struct snd_bebob_rate_spec *rate;
+ struct snd_bebob_meter_spec *meter;
+};
+
struct snd_bebob {
struct snd_card *card;
struct fw_device *device;
@@ -57,6 +79,8 @@ struct snd_bebob {
struct mutex mutex;
spinlock_t lock;
+ const struct snd_bebob_spec *spec;
+
unsigned int midi_input_ports;
unsigned int midi_output_ports;
@@ -94,6 +118,12 @@ snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf)
(void *)buf, sizeof(u32), 0);
}
+/* AV/C Audio Subunit Specification 1.0 (Oct 2000, 1394TA) */
+int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id,
+ unsigned int fb_id, unsigned int num);
+int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id,
+ unsigned int fb_id, unsigned int *num);
+
/*
* AVC command extensions, AV/C Unit and Subunit, Revision 17
* (Nov 2003, BridgeCo)
@@ -197,12 +227,13 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob);
int snd_bebob_create_hwdep_device(struct snd_bebob *bebob);
-#define SND_BEBOB_DEV_ENTRY(vendor, model) \
+#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
IEEE1394_MATCH_MODEL_ID, \
.vendor_id = vendor, \
.model_id = model, \
+ .driver_data = (kernel_ulong_t)data \
}
#endif
diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c
index 22a86d0..c63c6d8 100644
--- a/sound/firewire/bebob/bebob_command.c
+++ b/sound/firewire/bebob/bebob_command.c
@@ -11,6 +11,85 @@
#define BEBOB_COMMAND_MAX_TRIAL 3
#define BEBOB_COMMAND_WAIT_MSEC 100
+int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id,
+ unsigned int fb_id, unsigned int num)
+{
+ u8 *buf;
+ int err;
+
+ buf = kzalloc(12, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x00; /* AV/C CONTROL */
+ buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */
+ buf[2] = 0xb8; /* FUNCTION BLOCK */
+ buf[3] = 0x80; /* type is 'selector'*/
+ buf[4] = 0xff & fb_id; /* function block id */
+ buf[5] = 0x10; /* control attribute is CURRENT */
+ buf[6] = 0x02; /* selector length is 2 */
+ buf[7] = 0xff & num; /* input function block plug number */
+ buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */
+
+ /* do transaction and check buf[1-8] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7) | BIT(8));
+ if (err < 0)
+ goto end;
+ if ((err < 6) || (buf[0] != 0x09)) {
+ dev_err(&unit->device,
+ "failed to set selector %d: 0x%02X\n",
+ fb_id, buf[0]);
+ err = -EIO;
+ goto end;
+ }
+end:
+ kfree(buf);
+ return err;
+}
+
+int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id,
+ unsigned int fb_id, unsigned int *num)
+{
+ u8 *buf;
+ int err;
+
+ buf = kzalloc(12, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x01; /* AV/C STATUS */
+ buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */
+ buf[2] = 0xb8; /* FUNCTION BLOCK */
+ buf[3] = 0x80; /* type is 'selector'*/
+ buf[4] = 0xff & fb_id; /* function block id */
+ buf[5] = 0x10; /* control attribute is CURRENT */
+ buf[6] = 0x02; /* selector length is 2 */
+ buf[7] = 0xff; /* input function block plug number */
+ buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */
+
+ /* do transaction and check buf[1-6,8] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(8));
+ if (err < 0)
+ goto end;
+ if ((err < 6) || (buf[0] != 0x0c)) {
+ dev_err(&unit->device,
+ "failed to get selector %d: 0x%02X\n",
+ fb_id, buf[0]);
+ err = -EIO;
+ goto end;
+ }
+
+ *num = buf[7];
+ err = 0;
+end:
+ kfree(buf);
+ return err;
+}
+
static inline void
avc_bridgeco_fill_command_base(u8 *buf, unsigned int ctype, unsigned int opcode,
unsigned int subfunction,
diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c
index 525c4ac..83f2225 100644
--- a/sound/firewire/bebob/bebob_pcm.c
+++ b/sound/firewire/bebob/bebob_pcm.c
@@ -235,6 +235,7 @@ static int
pcm_open(struct snd_pcm_substream *substream)
{
struct snd_bebob *bebob = substream->private_data;
+ struct snd_bebob_rate_spec *spec = bebob->spec->rate;
unsigned int sampling_rate;
bool internal;
int err;
@@ -258,7 +259,7 @@ pcm_open(struct snd_pcm_substream *substream)
if (!internal ||
amdtp_stream_pcm_running(&bebob->tx_stream) ||
amdtp_stream_pcm_running(&bebob->rx_stream)) {
- err = snd_bebob_stream_get_rate(bebob, &sampling_rate);
+ err = spec->get(bebob, &sampling_rate);
if (err < 0)
goto err_locked;
diff --git a/sound/firewire/bebob/bebob_proc.c b/sound/firewire/bebob/bebob_proc.c
index 40099a5..b8ad4b8 100644
--- a/sound/firewire/bebob/bebob_proc.c
+++ b/sound/firewire/bebob/bebob_proc.c
@@ -72,6 +72,42 @@ end:
}
static void
+proc_read_meters(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_bebob *bebob = entry->private_data;
+ struct snd_bebob_meter_spec *spec = bebob->spec->meter;
+ u32 *buf;
+ unsigned int i, c, channels, size;
+ int err;
+
+ if (spec == NULL)
+ return;
+
+ channels = spec->num * 2;
+ size = channels * sizeof(u32);
+ buf = kmalloc(size, GFP_KERNEL);
+ if (buf == NULL)
+ return;
+
+ err = spec->get(bebob, buf, size);
+ if (err < 0)
+ goto end;
+
+ for (i = 0, c = 1; i < channels; i++) {
+ snd_iprintf(buffer, "%s %d:\t%d\n",
+ spec->labels[i / 2], c++, buf[i]);
+ if ((i + 1 < channels - 1) &&
+ (strcmp(spec->labels[i / 2],
+ spec->labels[(i + 1) / 2]) != 0))
+ c = 1;
+ }
+end:
+ kfree(buf);
+ return;
+}
+
+static void
proc_read_formation(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
@@ -105,18 +141,26 @@ proc_read_clock(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_bebob *bebob = entry->private_data;
+ struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock;
unsigned int rate;
bool internal;
+ unsigned int id;
if (snd_bebob_stream_get_rate(bebob, &rate) < 0)
return;
- if (snd_bebob_stream_check_internal_clock(bebob, &internal) < 0)
- return;
-
- snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)",
- (internal) ? "Internal" : "External",
- bebob->sync_input_plug);
snd_iprintf(buffer, "Sampling rate: %d\n", rate);
+
+ if (!clk_spec) {
+ if (snd_bebob_stream_check_internal_clock(bebob, &internal) < 0)
+ return;
+ snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)\n",
+ (internal) ? "Internal" : "External",
+ bebob->sync_input_plug);
+ } else {
+ if (clk_spec->get(bebob, &id) < 0)
+ return;
+ snd_iprintf(buffer, "Clock Source: %s\n", clk_spec->labels[id]);
+ }
}
void snd_bebob_proc_init(struct snd_bebob *bebob)
@@ -132,5 +176,10 @@ void snd_bebob_proc_init(struct snd_bebob *bebob)
if (!snd_card_proc_new(bebob->card, "#clock", &entry))
snd_info_set_text_ops(entry, bebob, proc_read_clock);
+ if (bebob->spec->meter != NULL) {
+ if (!snd_card_proc_new(bebob->card, "#meter", &entry))
+ snd_info_set_text_ops(entry, bebob, proc_read_meters);
+ }
+
return;
}
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 533d49a..76be74b 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -90,13 +90,26 @@ end:
int
snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal)
{
+ struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock;
u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7];
+ unsigned int id;
int err = 0;
*internal = false;
+ /* 1.The device has its own operation to switch source of clock */
+ if (clk_spec) {
+ err = clk_spec->get(bebob, &id);
+ if (err < 0)
+ goto end;
+ if (strncmp(clk_spec->labels[id], SND_BEBOB_CLOCK_INTERNAL,
+ strlen(SND_BEBOB_CLOCK_INTERNAL)) == 0)
+ *internal = true;
+ goto end;
+ }
+
/*
- * 1.The device don't support for switching source of clock
+ * 2.The device don't support for switching source of clock
* then assumed to use internal clock always
*/
if (bebob->sync_input_plug < 0) {
@@ -105,7 +118,7 @@ snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal)
}
/*
- * 2.The device supports to switch source of clock by an usual way.
+ * 3.The device supports to switch source of clock by an usual way.
* Let's check input for 'Music Sub Unit Sync Input' plug.
*/
avc_bridgeco_fill_subunit_addr(addr, 0x60, AVC_BRIDGECO_PLUG_DIR_IN,
@@ -380,6 +393,7 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
struct amdtp_stream *request,
unsigned int rate)
{
+ struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate;
struct amdtp_stream *master, *slave;
enum cip_flags sync_mode;
unsigned int curr_rate;
@@ -413,7 +427,7 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
}
/* get current rate */
- err = snd_bebob_stream_get_rate(bebob, &curr_rate);
+ err = rate_spec->get(bebob, &curr_rate);
if (err < 0)
goto end;
if (rate == 0)
@@ -443,7 +457,7 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
* If establishing connections at first, Yamaha GO46
* (and maybe Terratec X24) don't generate sound.
*/
- err = snd_bebob_stream_set_rate(bebob, rate);
+ err = rate_spec->set(bebob, rate);
if (err < 0)
goto end;
@@ -694,6 +708,7 @@ end:
int snd_bebob_stream_discover(struct snd_bebob *bebob)
{
u8 plugs[AVC_PLUG_INFO_BUF_COUNT], addr[AVC_BRIDGECO_ADDR_BYTES];
+ struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock;
enum avc_bridgeco_plug_type type;
unsigned int i;
int err;
@@ -767,7 +782,8 @@ int snd_bebob_stream_discover(struct snd_bebob *bebob)
}
/* for check source of clock later */
- err = seek_msu_sync_input_plug(bebob);
+ if (!clk_spec)
+ err = seek_msu_sync_input_plug(bebob);
end:
return err;
}
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 33/38] bebob: Add support for Terratec PHASE, EWS series and Aureon
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (31 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 32/38] bebob: Prepare for device specific operations Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 34/38] bebob: Add support for Yamaha GO series Takashi Sakamoto
` (5 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit allows this driver to support all of models which Terratec produced
with DM1000/BeBoB. They are:
- PHASE 24 FW
- PHASE X24 FW
- PHASE 88 Rack FW
- EWS MIC2
- EWS MIC4
- Aureon 7.1 Firewire
For Phase series, this commit adds a Terratec specific operation. To get source
of clock. AV/C Audio Subunit command is used.
For EWS series and Aureon, this module uses normal operations.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 3 ++
sound/firewire/bebob/Makefile | 2 +-
sound/firewire/bebob/bebob.c | 11 ++++++
sound/firewire/bebob/bebob.h | 4 +++
sound/firewire/bebob/bebob_terratec.c | 68 +++++++++++++++++++++++++++++++++++
5 files changed, 87 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/bebob/bebob_terratec.c
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 304f49e..34615e5 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -104,6 +104,9 @@ config SND_BEBOB
* Lynx Aurora 8/16 (LT-FW)
* ICON FireXon
* PrismSound Orpheus/ADA-8XR
+ * TerraTec PHASE 24 FW/PHASE X24 FW/PHASE 88 Rack FW
+ * Terratec EWS MIC2/EWS MIC4
+ * Terratec Aureon 7.1 Firewire
To compile this driver as a module, choose M here: the module
will be called snd-bebob.
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index e4b08e3..cb38dd1 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,3 +1,3 @@
snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
- bebob_pcm.o bebob_hwdep.o bebob.o
+ bebob_pcm.o bebob_hwdep.o bebob_terratec.o bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 4ce8121..f0a4ecb 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -52,6 +52,7 @@ static unsigned int devices_used;
#define VEN_LYNX 0x000019e5
#define VEN_ICON 0x00001a9e
#define VEN_PRISMSOUND 0x00001198
+#define VEN_TERRATEC 0x00000aac
static int
name_device(struct snd_bebob *bebob, unsigned int vendor_id)
@@ -285,6 +286,16 @@ static const struct ieee1394_device_id bebob_id_table[] = {
SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x00010048, &spec_normal),
/* PrismSound, ADA-8XR */
SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x0000ada8, &spec_normal),
+ /* TerraTec Electronic GmbH, PHASE 88 Rack FW */
+ SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000003, &phase88_rack_spec),
+ /* TerraTec Electronic GmbH, PHASE 24 FW */
+ SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000004, &phase24_series_spec),
+ /* TerraTec Electronic GmbH, Phase X24 FW */
+ SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000007, &phase24_series_spec),
+ /* TerraTec Electronic GmbH, EWS MIC2/MIC8 */
+ SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000005, &spec_normal),
+ /* Terratec Electronic GmbH, Aureon 7.1 Firewire */
+ SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000002, &spec_normal),
/* Ids are unknown but able to be supported */
/* Mackie, Digital X Bus x.200 */
/* Mackie, Digital X Bus x.400 */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 7ff89fa..1cb171b 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -227,6 +227,10 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob);
int snd_bebob_create_hwdep_device(struct snd_bebob *bebob);
+/* model specific operations */
+extern struct snd_bebob_spec phase88_rack_spec;
+extern struct snd_bebob_spec phase24_series_spec;
+
#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_terratec.c b/sound/firewire/bebob/bebob_terratec.c
new file mode 100644
index 0000000..9c2cebf
--- /dev/null
+++ b/sound/firewire/bebob/bebob_terratec.c
@@ -0,0 +1,68 @@
+/*
+ * bebob_terratec.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+static char *phase88_rack_clk_src_labels[] = {
+ SND_BEBOB_CLOCK_INTERNAL, "Digital In", "Word Clock"
+};
+static int
+phase88_rack_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
+{
+ unsigned int enable_ext, enable_word;
+ int err;
+
+ err = avc_audio_get_selector(bebob->unit, 0, 0, &enable_ext);
+ if (err < 0)
+ goto end;
+ err = avc_audio_get_selector(bebob->unit, 0, 0, &enable_word);
+ if (err < 0)
+ goto end;
+
+ *id = (enable_ext & 0x01) || ((enable_word & 0x01) << 1);
+end:
+ return err;
+}
+
+static char *phase24_series_clk_src_labels[] = {
+ SND_BEBOB_CLOCK_INTERNAL, "Digital In"
+};
+static int
+phase24_series_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
+{
+ return avc_audio_get_selector(bebob->unit, 0, 4, id);
+}
+
+struct snd_bebob_rate_spec phase_series_rate_spec = {
+ .get = &snd_bebob_stream_get_rate,
+ .set = &snd_bebob_stream_set_rate,
+};
+
+/* PHASE 88 Rack FW */
+struct snd_bebob_clock_spec phase88_rack_clk = {
+ .num = ARRAY_SIZE(phase88_rack_clk_src_labels),
+ .labels = phase88_rack_clk_src_labels,
+ .get = &phase88_rack_clk_src_get,
+};
+struct snd_bebob_spec phase88_rack_spec = {
+ .clock = &phase88_rack_clk,
+ .rate = &phase_series_rate_spec,
+ .meter = NULL
+};
+
+/* 'PHASE 24 FW' and 'PHASE X24 FW' */
+struct snd_bebob_clock_spec phase24_series_clk = {
+ .num = ARRAY_SIZE(phase24_series_clk_src_labels),
+ .labels = phase24_series_clk_src_labels,
+ .get = &phase24_series_clk_src_get,
+};
+struct snd_bebob_spec phase24_series_spec = {
+ .clock = &phase24_series_clk,
+ .rate = &phase_series_rate_spec,
+ .meter = NULL
+};
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 34/38] bebob: Add support for Yamaha GO series
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (32 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 33/38] bebob: Add support for Terratec PHASE, EWS series and Aureon Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 35/38] bebob: Add support for Focusrite Saffire/SaffirePro series Takashi Sakamoto
` (4 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit allows this driver to support all of models which Yamaha produced
with DM1000/BeBoB. They are:
- GO44
- GO46
This commit adds Yamaha specific operations. To get source of clock, AV/C Audio
Subunit command is used.
I note that their appearances are similar to some models of TerraTec; 'Go44' is
similar to 'PHASE 24 FW' and 'GO46' is similar to 'PHASE X24 FW'. But their
combination of Audio/Music subunit are a bit different.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 1 +
sound/firewire/bebob/Makefile | 3 ++-
sound/firewire/bebob/bebob.c | 5 ++++
sound/firewire/bebob/bebob.h | 1 +
sound/firewire/bebob/bebob_yamaha.c | 50 +++++++++++++++++++++++++++++++++++++
5 files changed, 59 insertions(+), 1 deletion(-)
create mode 100644 sound/firewire/bebob/bebob_yamaha.c
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 34615e5..d23bfa8 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -107,6 +107,7 @@ config SND_BEBOB
* TerraTec PHASE 24 FW/PHASE X24 FW/PHASE 88 Rack FW
* Terratec EWS MIC2/EWS MIC4
* Terratec Aureon 7.1 Firewire
+ * Yamaha GO44/GO46
To compile this driver as a module, choose M here: the module
will be called snd-bebob.
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index cb38dd1..c35eee1 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,3 +1,4 @@
snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
- bebob_pcm.o bebob_hwdep.o bebob_terratec.o bebob.o
+ bebob_pcm.o bebob_hwdep.o bebob_terratec.o bebob_yamaha.o \
+ bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index f0a4ecb..ad6a27e 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -53,6 +53,7 @@ static unsigned int devices_used;
#define VEN_ICON 0x00001a9e
#define VEN_PRISMSOUND 0x00001198
#define VEN_TERRATEC 0x00000aac
+#define VEN_YAMAHA 0x0000a0de
static int
name_device(struct snd_bebob *bebob, unsigned int vendor_id)
@@ -296,6 +297,10 @@ static const struct ieee1394_device_id bebob_id_table[] = {
SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000005, &spec_normal),
/* Terratec Electronic GmbH, Aureon 7.1 Firewire */
SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000002, &spec_normal),
+ /* Yamaha, GO44 */
+ SND_BEBOB_DEV_ENTRY(VEN_YAMAHA, 0x0010000b, &yamaha_go_spec),
+ /* YAMAHA, GO46 */
+ SND_BEBOB_DEV_ENTRY(VEN_YAMAHA, 0x0010000c, &yamaha_go_spec),
/* Ids are unknown but able to be supported */
/* Mackie, Digital X Bus x.200 */
/* Mackie, Digital X Bus x.400 */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 1cb171b..a684f06 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -230,6 +230,7 @@ int snd_bebob_create_hwdep_device(struct snd_bebob *bebob);
/* model specific operations */
extern struct snd_bebob_spec phase88_rack_spec;
extern struct snd_bebob_spec phase24_series_spec;
+extern struct snd_bebob_spec yamaha_go_spec;
#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
diff --git a/sound/firewire/bebob/bebob_yamaha.c b/sound/firewire/bebob/bebob_yamaha.c
new file mode 100644
index 0000000..f71af6b
--- /dev/null
+++ b/sound/firewire/bebob/bebob_yamaha.c
@@ -0,0 +1,50 @@
+/*
+ * bebob_yamaha.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+/*
+ * NOTE:
+ * Yamaha GO44 is not designed to be used as stand-alone mixer. So any streams
+ * must be accompanied. If changing the state, a LED on the device starts to
+ * blink and its sync status is false. In this state, the device sounds nothing
+ * even if streaming. To start streaming at the current sampling rate is only
+ * way to revocer this state. GO46 is better for stand-alone mixer.
+ *
+ * Both of them have a capability to change its sampling rate up to 192.0kHz.
+ * At 192.0kHz, the device reports 4 PCM-in, 1 MIDI-in, 6 PCM-out, 1 MIDI-out.
+ * But Yamaha's driver reduce 2 PCM-in, 1 MIDI-in, 2 PCM-out, 1 MIDI-out to use
+ * 'Extended Stream Format Information Command - Single Request' in 'Additional
+ * AVC commands' defined by BridgeCo.
+ * This ALSA driver don't do this because a bit tiresome. Then isochronous
+ * streaming with many asynchronous transactions brings sounds with noises.
+ * Unfortunately current 'ffado-mixer' generated many asynchronous transaction
+ * to observe device's state, mainly check cmp connection and signal format. I
+ * reccomend users to close ffado-mixer at 192.0kHz if mixer is needless.
+ */
+
+static char *clk_src_labels[] = {SND_BEBOB_CLOCK_INTERNAL, "SPDIF"};
+static int
+clk_src_get(struct snd_bebob *bebob, unsigned int *id)
+{
+ return avc_audio_get_selector(bebob->unit, 0, 4, id);
+}
+static struct snd_bebob_clock_spec clock_spec = {
+ .num = ARRAY_SIZE(clk_src_labels),
+ .labels = clk_src_labels,
+ .get = &clk_src_get,
+};
+static struct snd_bebob_rate_spec rate_spec = {
+ .get = &snd_bebob_stream_get_rate,
+ .set = &snd_bebob_stream_set_rate,
+};
+struct snd_bebob_spec yamaha_go_spec = {
+ .clock = &clock_spec,
+ .rate = &rate_spec,
+ .meter = NULL
+};
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 35/38] bebob: Add support for Focusrite Saffire/SaffirePro series
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (33 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 34/38] bebob: Add support for Yamaha GO series Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 36/38] bebob: Add support for M-Audio usual Firewire series Takashi Sakamoto
` (3 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit allows this driver to support all of models which Focusrite
produces with DM1000/BeBoB. They are:
- Saffire
- Saffire LE
- SaffirePro 10 I/O
- SaffirePro 26 I/O
This commit adds Focusrite specific operations:
1. Get source of clock
2. Get/Set sampling frequency
3. Get metering information
The driver uses these functionalities to read/write specific address by async
transaction.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 1 +
sound/firewire/bebob/Makefile | 2 +-
sound/firewire/bebob/bebob.c | 30 +++-
sound/firewire/bebob/bebob.h | 4 +
sound/firewire/bebob/bebob_focusrite.c | 289 +++++++++++++++++++++++++++++++++
5 files changed, 324 insertions(+), 2 deletions(-)
create mode 100644 sound/firewire/bebob/bebob_focusrite.c
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index d23bfa8..608547c 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -108,6 +108,7 @@ config SND_BEBOB
* Terratec EWS MIC2/EWS MIC4
* Terratec Aureon 7.1 Firewire
* Yamaha GO44/GO46
+ * Focusrite Saffire/Saffire LE/SaffirePro10 IO/SaffirePro26 IO
To compile this driver as a module, choose M here: the module
will be called snd-bebob.
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index c35eee1..6565420 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,4 +1,4 @@
snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
bebob_pcm.o bebob_hwdep.o bebob_terratec.o bebob_yamaha.o \
- bebob.o
+ bebob_focusrite.o bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index ad6a27e..d02686e 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -54,6 +54,9 @@ static unsigned int devices_used;
#define VEN_PRISMSOUND 0x00001198
#define VEN_TERRATEC 0x00000aac
#define VEN_YAMAHA 0x0000a0de
+#define VEN_FOCUSRITE 0x0000130e
+
+#define MODEL_FOCUSRITE_SAFFIRE_BOTH 0x00000000
static int
name_device(struct snd_bebob *bebob, unsigned int vendor_id)
@@ -124,6 +127,20 @@ bebob_card_free(struct snd_card *card)
return;
}
+static const struct snd_bebob_spec *
+get_saffire_spec(struct fw_unit *unit)
+{
+ char name[24] = {0};
+
+ if (fw_csr_string(unit->directory, CSR_MODEL, name, sizeof(name)) < 0)
+ return NULL;
+
+ if (strcmp(name, "SaffireLE") == 0)
+ return &saffire_le_spec;
+ else
+ return &saffire_spec;
+}
+
static int
bebob_probe(struct fw_unit *unit,
const struct ieee1394_device_id *entry)
@@ -145,7 +162,11 @@ bebob_probe(struct fw_unit *unit,
goto end;
}
- spec = (const struct snd_bebob_spec *)entry->driver_data;
+ if ((entry->vendor_id == VEN_FOCUSRITE) &&
+ (entry->model_id == MODEL_FOCUSRITE_SAFFIRE_BOTH))
+ spec = get_saffire_spec(unit);
+ else
+ spec = (const struct snd_bebob_spec *)entry->driver_data;
if (spec == NULL) {
err = -ENOSYS;
goto end;
@@ -301,6 +322,13 @@ static const struct ieee1394_device_id bebob_id_table[] = {
SND_BEBOB_DEV_ENTRY(VEN_YAMAHA, 0x0010000b, &yamaha_go_spec),
/* YAMAHA, GO46 */
SND_BEBOB_DEV_ENTRY(VEN_YAMAHA, 0x0010000c, &yamaha_go_spec),
+ /* Focusrite, SaffirePro 26 I/O */
+ SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000003, &saffirepro_26_spec),
+ /* Focusrite, SaffirePro 10 I/O */
+ SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000006, &saffirepro_10_spec),
+ /* Focusrite, Saffire(no label and LE) */
+ SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, MODEL_FOCUSRITE_SAFFIRE_BOTH,
+ &saffire_spec),
/* Ids are unknown but able to be supported */
/* Mackie, Digital X Bus x.200 */
/* Mackie, Digital X Bus x.400 */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index a684f06..7dc5e55 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -231,6 +231,10 @@ int snd_bebob_create_hwdep_device(struct snd_bebob *bebob);
extern struct snd_bebob_spec phase88_rack_spec;
extern struct snd_bebob_spec phase24_series_spec;
extern struct snd_bebob_spec yamaha_go_spec;
+extern struct snd_bebob_spec saffirepro_26_spec;
+extern struct snd_bebob_spec saffirepro_10_spec;
+extern struct snd_bebob_spec saffire_le_spec;
+extern struct snd_bebob_spec saffire_spec;
#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
diff --git a/sound/firewire/bebob/bebob_focusrite.c b/sound/firewire/bebob/bebob_focusrite.c
new file mode 100644
index 0000000..01996c9
--- /dev/null
+++ b/sound/firewire/bebob/bebob_focusrite.c
@@ -0,0 +1,289 @@
+/*
+ * bebob_focusrite.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+#define ANA_IN "Analog In"
+#define DIG_IN "Digital In"
+#define ANA_OUT "Analog Out"
+#define DIG_OUT "Digital Out"
+#define STM_IN "Stream In"
+
+#define SAFFIRE_ADDRESS_BASE 0x000100000000
+
+#define SAFFIRE_OFFSET_CLOCK_SOURCE 0x0000000000f8
+#define SAFFIREPRO_OFFSET_CLOCK_SOURCE 0x000000000174
+
+/* whether sync to external device or not */
+#define SAFFIRE_OFFSET_CLOCK_SYNC_EXT 0x00000000013c
+#define SAFFIRE_LE_OFFSET_CLOCK_SYNC_EXT 0x000000000432
+#define SAFFIREPRO_OFFSET_CLOCK_SYNC_EXT 0x000000000164
+
+#define SAFFIRE_CLOCK_SOURCE_INTERNAL 0
+#define SAFFIRE_CLOCK_SOURCE_SPDIF 1
+
+/* '1' is absent, why... */
+#define SAFFIREPRO_CLOCK_SOURCE_INTERNAL 0
+#define SAFFIREPRO_CLOCK_SOURCE_SPDIF 2
+#define SAFFIREPRO_CLOCK_SOURCE_ADAT1 3
+#define SAFFIREPRO_CLOCK_SOURCE_ADAT2 4
+#define SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK 5
+
+/* S/PDIF, ADAT1, ADAT2 is enabled or not. three quadlets */
+#define SAFFIREPRO_ENABLE_DIG_IFACES 0x0000000001a4
+
+/* saffirepro has its own parameter for sampling frequency */
+#define SAFFIREPRO_RATE_NOREBOOT 0x0000000001cc
+/* index is the value for this register */
+static const unsigned int rates[] = {
+ [0] = 0,
+ [1] = 44100,
+ [2] = 48000,
+ [3] = 88200,
+ [4] = 96000,
+ [5] = 176400,
+ [6] = 192000
+};
+
+/* saffire(no label)/saffire LE has metering */
+#define SAFFIRE_OFFSET_METER 0x000000000100
+#define SAFFIRE_LE_OFFSET_METER 0x000000000168
+
+static inline int
+saffire_read_block(struct snd_bebob *bebob, u64 offset,
+ u32 *buf, unsigned int size)
+{
+ unsigned int i;
+ int err;
+ __be32 *tmp = (__be32 *)buf;
+
+ err = snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST,
+ SAFFIRE_ADDRESS_BASE + offset,
+ tmp, size, 0);
+ if (err < 0)
+ goto end;
+
+ for (i = 0; i < size / sizeof(u32); i++)
+ buf[i] = be32_to_cpu(tmp[i]);
+end:
+ return err;
+}
+
+static inline int
+saffire_read_quad(struct snd_bebob *bebob, u64 offset, u32 *value)
+{
+ int err;
+ __be32 tmp;
+
+ err = snd_fw_transaction(bebob->unit, TCODE_READ_QUADLET_REQUEST,
+ SAFFIRE_ADDRESS_BASE + offset,
+ &tmp, sizeof(__be32), 0);
+ if (err < 0)
+ goto end;
+
+ *value = be32_to_cpu(tmp);
+end:
+ return err;
+}
+
+static inline int
+saffire_write_quad(struct snd_bebob *bebob, u64 offset, u32 value)
+{
+ __be32 data = cpu_to_be32(value);
+
+ return snd_fw_transaction(bebob->unit, TCODE_WRITE_QUADLET_REQUEST,
+ SAFFIRE_ADDRESS_BASE + offset,
+ &data, sizeof(__be32), 0);
+}
+
+static char *saffirepro_26_clk_src_labels[] = {
+ SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "ADAT1", "ADAT2", "Word Clock"
+};
+
+static char *saffirepro_10_clk_src_labels[] = {
+ SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "Word Clock"
+};
+static int
+saffirepro_both_clk_freq_get(struct snd_bebob *bebob, unsigned int *rate)
+{
+ u32 id;
+ int err;
+
+ err = saffire_read_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, &id);
+ if (err < 0)
+ goto end;
+ if (id >= ARRAY_SIZE(rates)) {
+ err = -EIO;
+ goto end;
+ }
+
+ *rate = rates[id];
+end:
+ return err;
+}
+static int
+saffirepro_both_clk_freq_set(struct snd_bebob *bebob, unsigned int rate)
+{
+ u32 id;
+ bool flag;
+
+ flag = false;
+ for (id = 0; id < ARRAY_SIZE(rates); id++) {
+ if (rates[id] == rate)
+ flag = true;
+ }
+ if (!flag)
+ return -EINVAL;
+
+ return saffire_write_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, id);
+}
+static int
+saffirepro_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
+{
+ int err;
+ u32 value;
+
+ err = saffire_read_quad(bebob, SAFFIREPRO_OFFSET_CLOCK_SOURCE, &value);
+ if (err < 0)
+ goto end;
+
+ if (bebob->spec->clock->labels == saffirepro_10_clk_src_labels) {
+ if (value == SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK)
+ *id = 2;
+ else if (value == SAFFIREPRO_CLOCK_SOURCE_SPDIF)
+ *id = 1;
+ } else if (value > 1)
+ *id = value - 1;
+end:
+ return err;
+}
+
+struct snd_bebob_spec saffire_le_spec;
+static char *saffire_both_clk_src_labels[] = {
+ SND_BEBOB_CLOCK_INTERNAL, "S/PDIF"
+};
+static int
+saffire_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
+{
+ int err;
+ u32 value;
+
+ err = saffire_read_quad(bebob, SAFFIRE_OFFSET_CLOCK_SOURCE, &value);
+ if (err < 0)
+ goto end;
+
+ *id = 0xff & value;
+end:
+ return err;
+};
+static char *saffire_le_meter_labels[] = {
+ ANA_IN, ANA_IN, DIG_IN,
+ ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT,
+ STM_IN, STM_IN
+};
+#define SWAP(a, b) \
+ do { \
+ tmp = a; \
+ a = b; \
+ b = tmp; \
+ } while (0)
+static int
+saffire_le_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
+{
+ int err;
+ u32 tmp;
+
+ if (size < sizeof(saffire_le_meter_labels) * sizeof(u32))
+ return -EIO;
+
+ err = saffire_read_block(bebob, SAFFIRE_LE_OFFSET_METER, buf, size);
+ if (err < 0)
+ goto end;
+
+ SWAP(buf[1], buf[3]);
+ SWAP(buf[2], buf[3]);
+ SWAP(buf[3], buf[4]);
+
+ SWAP(buf[7], buf[10]);
+ SWAP(buf[8], buf[10]);
+ SWAP(buf[9], buf[11]);
+ SWAP(buf[11], buf[12]);
+
+ SWAP(buf[15], buf[16]);
+
+end:
+ return err;
+}
+static char *saffire_meter_labels[] = {
+ ANA_IN, ANA_IN,
+ STM_IN, STM_IN, STM_IN, STM_IN, STM_IN,
+};
+static int
+saffire_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
+{
+ return saffire_read_block(bebob, SAFFIRE_OFFSET_METER, buf, size);
+}
+
+/* Saffire Pro 26 I/O */
+static struct snd_bebob_rate_spec saffirepro_both_rate_spec = {
+ .get = &saffirepro_both_clk_freq_get,
+ .set = &saffirepro_both_clk_freq_set,
+};
+static struct snd_bebob_clock_spec saffirepro_26_clk_spec = {
+ .num = ARRAY_SIZE(saffirepro_26_clk_src_labels),
+ .labels = saffirepro_26_clk_src_labels,
+ .get = &saffirepro_both_clk_src_get,
+};
+struct snd_bebob_spec saffirepro_26_spec = {
+ .clock = &saffirepro_26_clk_spec,
+ .rate = &saffirepro_both_rate_spec,
+ .meter = NULL
+};
+/* Saffire Pro 10 I/O */
+static struct snd_bebob_clock_spec saffirepro_10_clk_spec = {
+ .num = ARRAY_SIZE(saffirepro_10_clk_src_labels),
+ .labels = saffirepro_10_clk_src_labels,
+ .get = &saffirepro_both_clk_src_get,
+};
+struct snd_bebob_spec saffirepro_10_spec = {
+ .clock = &saffirepro_10_clk_spec,
+ .rate = &saffirepro_both_rate_spec,
+ .meter = NULL
+};
+
+/* Saffire LE */
+static struct snd_bebob_rate_spec saffire_both_rate_spec = {
+ .get = &snd_bebob_stream_get_rate,
+ .set = &snd_bebob_stream_set_rate,
+};
+static struct snd_bebob_clock_spec saffire_both_clk_spec = {
+ .num = ARRAY_SIZE(saffire_both_clk_src_labels),
+ .labels = saffire_both_clk_src_labels,
+ .get = &saffire_both_clk_src_get,
+};
+struct snd_bebob_meter_spec saffire_le_meter_spec = {
+ .num = ARRAY_SIZE(saffire_le_meter_labels),
+ .labels = saffire_le_meter_labels,
+ .get = &saffire_le_meter_get,
+};
+struct snd_bebob_spec saffire_le_spec = {
+ .clock = &saffire_both_clk_spec,
+ .rate = &saffire_both_rate_spec,
+ .meter = &saffire_le_meter_spec
+};
+/* Saffire */
+struct snd_bebob_meter_spec saffire_meter_spec = {
+ .num = ARRAY_SIZE(saffire_meter_labels),
+ .labels = saffire_meter_labels,
+ .get = &saffire_meter_get,
+};
+struct snd_bebob_spec saffire_spec = {
+ .clock = &saffire_both_clk_spec,
+ .rate = &saffire_both_rate_spec,
+ .meter = &saffire_meter_spec
+};
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 36/38] bebob: Add support for M-Audio usual Firewire series
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (34 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 35/38] bebob: Add support for Focusrite Saffire/SaffirePro series Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 37/38] bebob: Add support for M-Audio special " Takashi Sakamoto
` (2 subsequent siblings)
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit allows this driver to support some models which M-Audio produces
with DM1000/DM1000E with usual firmware. They are:
- Firewire 410
- Firewire AudioPhile
- Firewire Solo
- Ozonic
- NRV10
- FirewireLightBridge
According to person of BridgeCo, Some models are produced with 'Pre-BeBoB'. This
means that these products were released before BeBoB was officially produced. So
these models have some quirks.
M-Audio usual firmware quirks:
- Just after powering on, 'Firewire 410' waits to download firmware. This
state is changed when receiving cue. Then bus reset is generated and the
device is recognized as a different model with the uploaded firmware.
- 'Firewire Audiophile' also waits to download firmware but its
vendor id/model id is the same as the one after loading firmware.
- The information of channel mapping for MIDI conformant data channel is
invalid against BridgeCo specification.
This commit adds some codes for these quirks but don't support to upload
firmware.
This commit also adds specific operations to get metering information. The
metering information also includes status of clock synchronization if the model
supports to switch source of clock.
The specification of FirewireLightBridge is unknown. So in this time, normal
operations are applied for this model.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 2 +
sound/firewire/bebob/Makefile | 2 +-
sound/firewire/bebob/bebob.c | 45 +++++-
sound/firewire/bebob/bebob.h | 5 +
sound/firewire/bebob/bebob_maudio.c | 295 ++++++++++++++++++++++++++++++++++++
sound/firewire/bebob/bebob_stream.c | 9 ++
6 files changed, 355 insertions(+), 3 deletions(-)
create mode 100644 sound/firewire/bebob/bebob_maudio.c
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 608547c..d71faf6 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -109,6 +109,8 @@ config SND_BEBOB
* Terratec Aureon 7.1 Firewire
* Yamaha GO44/GO46
* Focusrite Saffire/Saffire LE/SaffirePro10 IO/SaffirePro26 IO
+ * M-Audio Firewire410/AudioPhile/Solo
+ * M-Audio Ozonic/NRV10/ProfireLightBridge
To compile this driver as a module, choose M here: the module
will be called snd-bebob.
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index 6565420..6cf470c 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,4 +1,4 @@
snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
bebob_pcm.o bebob_hwdep.o bebob_terratec.o bebob_yamaha.o \
- bebob_focusrite.o bebob.o
+ bebob_focusrite.o bebob_maudio.o bebob.o
obj-m += snd-bebob.o
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index d02686e..65554ef 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -55,8 +55,11 @@ static unsigned int devices_used;
#define VEN_TERRATEC 0x00000aac
#define VEN_YAMAHA 0x0000a0de
#define VEN_FOCUSRITE 0x0000130e
+#define VEN_MAUDIO1 0x00000d6c
+#define VEN_MAUDIO2 0x000007f5
#define MODEL_FOCUSRITE_SAFFIRE_BOTH 0x00000000
+#define MODEL_MAUDIO_AUDIOPHILE_BOTH 0x00010060
static int
name_device(struct snd_bebob *bebob, unsigned int vendor_id)
@@ -141,6 +144,17 @@ get_saffire_spec(struct fw_unit *unit)
return &saffire_spec;
}
+static bool
+check_audiophile_booted(struct fw_unit *unit)
+{
+ char name[24] = {0};
+
+ if (fw_csr_string(unit->directory, CSR_MODEL, name, sizeof(name)) < 0)
+ return false;
+
+ return strncmp(name, "FW Audiophile Bootloader", 15) != 0;
+}
+
static int
bebob_probe(struct fw_unit *unit,
const struct ieee1394_device_id *entry)
@@ -163,10 +177,16 @@ bebob_probe(struct fw_unit *unit,
}
if ((entry->vendor_id == VEN_FOCUSRITE) &&
- (entry->model_id == MODEL_FOCUSRITE_SAFFIRE_BOTH))
+ (entry->model_id == MODEL_FOCUSRITE_SAFFIRE_BOTH)) {
spec = get_saffire_spec(unit);
- else
+ } else if ((entry->vendor_id == VEN_MAUDIO1) &&
+ (entry->model_id == MODEL_MAUDIO_AUDIOPHILE_BOTH) &&
+ !check_audiophile_booted(unit)) {
+ err = 0;
+ goto end;
+ } else {
spec = (const struct snd_bebob_spec *)entry->driver_data;
+ }
if (spec == NULL) {
err = -ENOSYS;
goto end;
@@ -239,6 +259,10 @@ static void
bebob_update(struct fw_unit *unit)
{
struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
+
+ if (bebob == NULL)
+ return;
+
fcp_bus_reset(bebob->unit);
snd_bebob_stream_update_duplex(bebob);
}
@@ -247,6 +271,10 @@ bebob_update(struct fw_unit *unit)
static void bebob_remove(struct fw_unit *unit)
{
struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
+
+ if (bebob == NULL)
+ return;
+
snd_bebob_stream_destroy_duplex(bebob);
snd_card_disconnect(bebob->card);
snd_card_free_when_closed(bebob->card);
@@ -329,6 +357,19 @@ static const struct ieee1394_device_id bebob_id_table[] = {
/* Focusrite, Saffire(no label and LE) */
SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, MODEL_FOCUSRITE_SAFFIRE_BOTH,
&saffire_spec),
+ /* M-Audio, Firewire 410 */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO2, 0x00010046, &maudio_fw410_spec),
+ /* M-Audio, Firewire Audiophile */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_AUDIOPHILE_BOTH,
+ &maudio_audiophile_spec),
+ /* M-Audio, Firewire Solo */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010062, &maudio_solo_spec),
+ /* M-Audio, Ozonic */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x0000000a, &maudio_ozonic_spec),
+ /* M-Audio NRV10 */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010081, &maudio_nrv10_spec),
+ /* M-Audio, ProFireLightbridge */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x000100a1, &spec_normal),
/* Ids are unknown but able to be supported */
/* Mackie, Digital X Bus x.200 */
/* Mackie, Digital X Bus x.400 */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 7dc5e55..c67d5e5 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -235,6 +235,11 @@ extern struct snd_bebob_spec saffirepro_26_spec;
extern struct snd_bebob_spec saffirepro_10_spec;
extern struct snd_bebob_spec saffire_le_spec;
extern struct snd_bebob_spec saffire_spec;
+extern struct snd_bebob_spec maudio_fw410_spec;
+extern struct snd_bebob_spec maudio_audiophile_spec;
+extern struct snd_bebob_spec maudio_solo_spec;
+extern struct snd_bebob_spec maudio_ozonic_spec;
+extern struct snd_bebob_spec maudio_nrv10_spec;
#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
new file mode 100644
index 0000000..715cf34
--- /dev/null
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -0,0 +1,295 @@
+/*
+ * bebob_maudio.c - a part of driver for BeBoB based devices
+ *
+ * Copyright (c) 2013 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./bebob.h"
+
+/*
+ * Just powering on, Firewire 410/Audiophile wait to
+ * download firmware blob. To enable these devices, drivers should upload
+ * firmware blob and send a command to initialize configuration to factory
+ * settings when completing uploading. Then these devices generate bus reset
+ * and are recognized as new devices with the firmware.
+ *
+ * For streaming, both of output and input streams are needed for Firewire 410
+ * and Ozonic. The single stream is OK for the other devices even if the clock
+ * source is not SYT-Match (I note no devices use SYT-Match).
+ *
+ * Without streaming, the devices except for Firewire Audiophile can mix any
+ * input and output. For this reason, Audiophile cannot be used as standalone
+ * mixer.
+ */
+
+#define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000
+
+#define METER_OFFSET 0x00600000
+
+/* some device has sync info after metering data */
+#define METER_SIZE_FW410 76 /* with sync info */
+#define METER_SIZE_AUDIOPHILE 60 /* with sync info */
+#define METER_SIZE_SOLO 52 /* with sync info */
+#define METER_SIZE_OZONIC 48
+#define METER_SIZE_NRV10 80
+
+/* labels for metering */
+#define ANA_IN "Analog In"
+#define ANA_OUT "Analog Out"
+#define DIG_IN "Digital In"
+#define SPDIF_IN "S/PDIF In"
+#define ADAT_IN "ADAT In"
+#define DIG_OUT "Digital Out"
+#define SPDIF_OUT "S/PDIF Out"
+#define ADAT_OUT "ADAT Out"
+#define STRM_IN "Stream In"
+#define AUX_OUT "Aux Out"
+#define HP_OUT "HP Out"
+/* for NRV */
+#define UNKNOWN_METER "Unknown"
+
+static inline int
+get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
+{
+ return snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST,
+ MAUDIO_SPECIFIC_ADDRESS + METER_OFFSET,
+ buf, size, 0);
+}
+
+static int
+check_clk_sync(struct snd_bebob *bebob, unsigned int size, bool *sync)
+{
+ int err;
+ u8 *buf;
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ err = get_meter(bebob, buf, size);
+ if (err < 0)
+ goto end;
+
+ /* if synced, this value is the same of SFC of FDF in CIP header */
+ *sync = (buf[size - 2] != 0xff);
+end:
+ kfree(buf);
+ return err;
+}
+
+/* Firewire 410 specific operation */
+static char *fw410_meter_labels[] = {
+ ANA_IN, DIG_IN,
+ ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, DIG_OUT,
+ HP_OUT
+};
+static int
+fw410_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
+{
+
+ unsigned int c, channels;
+ int err;
+
+ /* last 4 bytes are omitted because it's clock info. */
+ channels = ARRAY_SIZE(fw410_meter_labels) * 2;
+ if (size < channels * sizeof(u32))
+ return -EINVAL;
+
+ err = get_meter(bebob, (void *)buf, size);
+ if (err < 0)
+ goto end;
+
+ for (c = 0; c < channels; c++)
+ be32_to_cpus(&buf[c]);
+end:
+ return err;
+}
+
+/* Firewire Audiophile specific operation */
+static char *audiophile_meter_labels[] = {
+ ANA_IN, DIG_IN,
+ ANA_OUT, ANA_OUT, DIG_OUT,
+ HP_OUT, AUX_OUT,
+};
+static int
+audiophile_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
+{
+ unsigned int c, channels;
+ int err;
+
+ /* last 4 bytes are omitted because it's clock info. */
+ channels = ARRAY_SIZE(audiophile_meter_labels) * 2;
+ if (size < channels * sizeof(u32))
+ return -EINVAL;
+
+ err = get_meter(bebob, (void *)buf, size);
+ if (err < 0)
+ goto end;
+
+ for (c = 0; c < channels; c++)
+ be32_to_cpus(&buf[c]);
+end:
+ return err;
+}
+
+/* Firewire Solo specific operation */
+static char *solo_meter_labels[] = {
+ ANA_IN, DIG_IN,
+ STRM_IN, STRM_IN,
+ ANA_OUT, DIG_OUT
+};
+static int
+solo_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
+{
+ unsigned int c;
+ int err;
+ u32 tmp;
+
+ /* last 4 bytes are omitted because it's clock info. */
+ if (size < ARRAY_SIZE(solo_meter_labels) * 2 * sizeof(u32))
+ return -EINVAL;
+
+ err = get_meter(bebob, (void *)buf, size);
+ if (err < 0)
+ goto end;
+
+ c = 0;
+ do
+ buf[c] = be32_to_cpu(buf[c]);
+ while (++c < 4);
+
+ /* swap stream channels because inverted */
+ tmp = be32_to_cpu(buf[c]);
+ buf[c] = be32_to_cpu(buf[c + 2]);
+ buf[c + 2] = tmp;
+ tmp = be32_to_cpu(buf[c + 1]);
+ buf[c + 1] = be32_to_cpu(buf[c + 3]);
+ buf[c + 3] = tmp;
+
+ c += 4;
+ do
+ be32_to_cpus(&buf[c]);
+ while (++c < 12);
+end:
+ return err;
+}
+
+/* Ozonic specific operation */
+static char *ozonic_meter_labels[] = {
+ ANA_IN, ANA_IN,
+ STRM_IN, STRM_IN,
+ ANA_OUT, ANA_OUT
+};
+static int
+ozonic_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
+{
+ unsigned int c, channels;
+ int err;
+
+ channels = ARRAY_SIZE(ozonic_meter_labels) * 2;
+ if (size < channels * sizeof(u32))
+ return -EINVAL;
+
+ err = get_meter(bebob, (void *)buf, size);
+ if (err < 0)
+ goto end;
+
+ for (c = 0; c < channels; c++)
+ be32_to_cpus(&buf[c]);
+end:
+ return err;
+}
+
+/* NRV10 specific operation */
+/* TODO: need testers. these positions are based on my assumption */
+static char *nrv10_meter_labels[] = {
+ ANA_IN, ANA_IN, ANA_IN, ANA_IN,
+ DIG_IN,
+ ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT,
+ DIG_IN
+};
+static int
+nrv10_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
+{
+ unsigned int c, channels;
+ int err;
+
+ channels = ARRAY_SIZE(nrv10_meter_labels) * 2;
+ if (size < channels * sizeof(u32))
+ return -EINVAL;
+
+ err = get_meter(bebob, (void *)buf, size);
+ if (err < 0)
+ goto end;
+
+ for (c = 0; c < channels; c++)
+ be32_to_cpus(&buf[c]);
+end:
+ return err;
+}
+
+/* Firewire 410 specification */
+static struct snd_bebob_rate_spec usual_rate_spec = {
+ .get = &snd_bebob_stream_get_rate,
+ .set = &snd_bebob_stream_set_rate,
+};
+static struct snd_bebob_meter_spec fw410_meter_spec = {
+ .num = ARRAY_SIZE(fw410_meter_labels),
+ .labels = fw410_meter_labels,
+ .get = &fw410_meter_get
+};
+struct snd_bebob_spec maudio_fw410_spec = {
+ .clock = NULL,
+ .rate = &usual_rate_spec,
+ .meter = &fw410_meter_spec
+};
+
+/* Firewire Audiophile specification */
+static struct snd_bebob_meter_spec audiophile_meter_spec = {
+ .num = ARRAY_SIZE(audiophile_meter_labels),
+ .labels = audiophile_meter_labels,
+ .get = &audiophile_meter_get
+};
+struct snd_bebob_spec maudio_audiophile_spec = {
+ .clock = NULL,
+ .rate = &usual_rate_spec,
+ .meter = &audiophile_meter_spec
+};
+
+/* Firewire Solo specification */
+static struct snd_bebob_meter_spec solo_meter_spec = {
+ .num = ARRAY_SIZE(solo_meter_labels),
+ .labels = solo_meter_labels,
+ .get = &solo_meter_get
+};
+struct snd_bebob_spec maudio_solo_spec = {
+ .clock = NULL,
+ .rate = &usual_rate_spec,
+ .meter = &solo_meter_spec
+};
+
+/* Ozonic specification */
+static struct snd_bebob_meter_spec ozonic_meter_spec = {
+ .num = ARRAY_SIZE(ozonic_meter_labels),
+ .labels = ozonic_meter_labels,
+ .get = &ozonic_meter_get
+};
+struct snd_bebob_spec maudio_ozonic_spec = {
+ .clock = NULL,
+ .rate = &usual_rate_spec,
+ .meter = &ozonic_meter_spec
+};
+
+/* NRV10 specification */
+static struct snd_bebob_meter_spec nrv10_meter_spec = {
+ .num = ARRAY_SIZE(nrv10_meter_labels),
+ .labels = nrv10_meter_labels,
+ .get = &nrv10_meter_get
+};
+struct snd_bebob_spec maudio_nrv10_spec = {
+ .clock = NULL,
+ .rate = &usual_rate_spec,
+ .meter = &nrv10_meter_spec
+};
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 76be74b..5865fed 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -198,6 +198,15 @@ map_stream(struct snd_bebob *bebob, struct amdtp_stream *s)
/* location of this channel in this section */
sec_loc = buf[pos++] - 1;
+ /*
+ * Basically the number of location is within the
+ * number of channels in this section. But some models
+ * of M-Audio don't follow this. Its location for MIDI
+ * is the position of MIDI channels in AMDTP packet.
+ */
+ if (sec_loc >= channels)
+ sec_loc = ch;
+
switch (type) {
/* for MIDI conformant data channel */
case 0x0a:
--
1.8.3.2
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 37/38] bebob: Add support for M-Audio special Firewire series
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (35 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 36/38] bebob: Add support for M-Audio usual Firewire series Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 13:14 ` [PATCH 38/38] bebob: Send a cue to load firmware for M-Audio " Takashi Sakamoto
2013-12-20 14:46 ` Sample program for hwdep interface Takashi Sakamoto
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit allows this driver to support some models which M-Audio produces
with DM1000 but its firmware is special. They are:
- Firewire 1814
- ProjectMix I/O
They have heavily customized firmware. The usual operations can't be applied to
them. For this reason, this commit adds some model specific members in 'struct
snd_bebob' and model specific functions. Some parameters are write-only so this
commit also adds control interface for them.
M-Audio special firmware quirks:
- Just after powering on, they wait to download firmware. This state is
changed when receiving cue. Then bus reset is generated and the device is
recognized as a different model with the uploaded firmware.
- They don't respond against BridgeCo AV/C extension commands. So drivers
can't get their stream formations and so on.
- They do not start to transmit packets only by establishing connection but
also by receiving SIGNAL FORMAT command.
- They can't handle frequent transactions. In this reason, this driver often
fail to handle them.
This module don't support to upload firmware.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/Kconfig | 1 +
sound/firewire/bebob/bebob.c | 17 +-
sound/firewire/bebob/bebob.h | 13 +
sound/firewire/bebob/bebob_maudio.c | 492 +++++++++++++++++++++++++++++++++++-
sound/firewire/bebob/bebob_stream.c | 22 +-
5 files changed, 539 insertions(+), 6 deletions(-)
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index d71faf6..1149997 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -111,6 +111,7 @@ config SND_BEBOB
* Focusrite Saffire/Saffire LE/SaffirePro10 IO/SaffirePro26 IO
* M-Audio Firewire410/AudioPhile/Solo
* M-Audio Ozonic/NRV10/ProfireLightBridge
+ * M-Audio Firewire 1814/ProjectMix IO
To compile this driver as a module, choose M here: the module
will be called snd-bebob.
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 65554ef..65e856e 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -60,6 +60,8 @@ static unsigned int devices_used;
#define MODEL_FOCUSRITE_SAFFIRE_BOTH 0x00000000
#define MODEL_MAUDIO_AUDIOPHILE_BOTH 0x00010060
+#define MODEL_MAUDIO_FW1814 0x00010071
+#define MODEL_MAUDIO_PROJECTMIX 0x00010091
static int
name_device(struct snd_bebob *bebob, unsigned int vendor_id)
@@ -212,7 +214,14 @@ bebob_probe(struct fw_unit *unit,
if (err < 0)
goto error;
- err = snd_bebob_stream_discover(bebob);
+ if ((entry->vendor_id == VEN_MAUDIO1) &&
+ (entry->model_id == MODEL_MAUDIO_FW1814))
+ err = snd_bebob_maudio_special_discover(bebob, true);
+ else if ((entry->vendor_id == VEN_MAUDIO1) &&
+ (entry->model_id == MODEL_MAUDIO_PROJECTMIX))
+ err = snd_bebob_maudio_special_discover(bebob, false);
+ else
+ err = snd_bebob_stream_discover(bebob);
if (err < 0)
goto error;
@@ -370,6 +379,12 @@ static const struct ieee1394_device_id bebob_id_table[] = {
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010081, &maudio_nrv10_spec),
/* M-Audio, ProFireLightbridge */
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x000100a1, &spec_normal),
+ /* Firewire 1814 */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_FW1814,
+ &maudio_special_spec),
+ /* M-Audio ProjectMix */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_PROJECTMIX,
+ &maudio_special_spec),
/* Ids are unknown but able to be supported */
/* Mackie, Digital X Bus x.200 */
/* Mackie, Digital X Bus x.400 */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index c67d5e5..c65e7b3 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -100,6 +100,16 @@ struct snd_bebob {
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
+
+ /* for M-Audio special devices */
+ bool maudio_special_quirk;
+ bool maudio_is1814;
+ unsigned int clk_src;
+ unsigned int dig_in_iface;
+ unsigned int dig_in_fmt;
+ unsigned int dig_out_fmt;
+ unsigned int clk_lock;
+ struct snd_ctl_elem_id *ctl_id_sync;
};
static inline int
@@ -241,6 +251,9 @@ extern struct snd_bebob_spec maudio_solo_spec;
extern struct snd_bebob_spec maudio_ozonic_spec;
extern struct snd_bebob_spec maudio_nrv10_spec;
+extern struct snd_bebob_spec maudio_special_spec;
+int snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
index 715cf34..b941042 100644
--- a/sound/firewire/bebob/bebob_maudio.c
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -7,9 +7,10 @@
*/
#include "./bebob.h"
+#include <sound/control.h>
/*
- * Just powering on, Firewire 410/Audiophile wait to
+ * Just powering on, Firewire 410/Audiophile/1814 and ProjectMix I/O wait to
* download firmware blob. To enable these devices, drivers should upload
* firmware blob and send a command to initialize configuration to factory
* settings when completing uploading. Then these devices generate bus reset
@@ -22,6 +23,12 @@
* Without streaming, the devices except for Firewire Audiophile can mix any
* input and output. For this reason, Audiophile cannot be used as standalone
* mixer.
+ *
+ * Firewire 1814 and ProjectMix I/O uses special firmware. It will be freezed
+ * when receiving any commands which the firmware can't understand. These
+ * devices utilize completely different system to control. It is some
+ * write-transaction directly into a certain address. All of addresses for mixer
+ * functionality is between 0xffc700700000 to 0xffc70070009c.
*/
#define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000
@@ -29,6 +36,7 @@
#define METER_OFFSET 0x00600000
/* some device has sync info after metering data */
+#define METER_SIZE_SPECIAL 84 /* with sync info */
#define METER_SIZE_FW410 76 /* with sync info */
#define METER_SIZE_AUDIOPHILE 60 /* with sync info */
#define METER_SIZE_SOLO 52 /* with sync info */
@@ -79,7 +87,466 @@ end:
return err;
}
-/* Firewire 410 specific operation */
+/*
+ * dig_fmt: 0x00:S/PDIF, 0x01:ADAT
+ * clk_lock: 0x00:unlock, 0x01:lock
+ */
+static int
+special_clk_set_params(struct snd_bebob *bebob, unsigned int clk_src,
+ unsigned int dig_in_fmt, unsigned int dig_out_fmt,
+ unsigned int clk_lock)
+{
+ int err;
+ u8 *buf;
+
+ if (amdtp_stream_running(&bebob->rx_stream) ||
+ amdtp_stream_running(&bebob->tx_stream))
+ return -EBUSY;
+
+ buf = kmalloc(12, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x00; /* CONTROL */
+ buf[1] = 0xff; /* UNIT */
+ buf[2] = 0x00; /* vendor dependent */
+ buf[3] = 0x04; /* company ID high */
+ buf[4] = 0x00; /* company ID middle */
+ buf[5] = 0x04; /* company ID low */
+ buf[6] = 0xff & clk_src; /* clock source */
+ buf[7] = 0xff & dig_in_fmt; /* input digital format */
+ buf[8] = 0xff & dig_out_fmt; /* output digital format */
+ buf[9] = 0xff & clk_lock; /* lock these settings */
+ buf[10] = 0x00; /* padding */
+ buf[11] = 0x00; /* padding */
+
+ /* do transaction and check buf[1-9] are the same against command */
+ err = fcp_avc_transaction(bebob->unit, buf, 12, buf, 12,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) |
+ BIT(5) | BIT(6) | BIT(7) | BIT(8) |
+ BIT(9));
+ if (err < 0)
+ goto end;
+ if ((err < 6) || (buf[0] != 0x09)) {
+ dev_err(&bebob->unit->device,
+ "failed to set clock params\n");
+ err = -EIO;
+ goto end;
+ }
+
+ bebob->clk_src = buf[6];
+ bebob->dig_in_fmt = buf[7];
+ bebob->dig_out_fmt = buf[8];
+ bebob->clk_lock = buf[9];
+
+ snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ bebob->ctl_id_sync);
+end:
+ kfree(buf);
+ return err;
+}
+static void
+special_stream_formation_set(struct snd_bebob *bebob)
+{
+ unsigned int i;
+
+ /*
+ * the stream formation is different depending on digital interface
+ */
+ if (bebob->dig_in_fmt == 0x01) {
+ bebob->tx_stream_formations[3].pcm = 16;
+ bebob->tx_stream_formations[4].pcm = 16;
+ bebob->tx_stream_formations[5].pcm = 12;
+ bebob->tx_stream_formations[6].pcm = 12;
+ if (bebob->maudio_is1814) {
+ bebob->tx_stream_formations[7].pcm = 2;
+ bebob->tx_stream_formations[8].pcm = 2;
+ }
+ } else {
+ bebob->tx_stream_formations[3].pcm = 10;
+ bebob->tx_stream_formations[4].pcm = 10;
+ bebob->tx_stream_formations[5].pcm = 10;
+ bebob->tx_stream_formations[6].pcm = 10;
+ if (bebob->maudio_is1814) {
+ bebob->tx_stream_formations[7].pcm = 2;
+ bebob->tx_stream_formations[8].pcm = 2;
+ }
+ }
+
+ if (bebob->dig_out_fmt == 0x01) {
+ bebob->rx_stream_formations[3].pcm = 12;
+ bebob->rx_stream_formations[4].pcm = 12;
+ bebob->rx_stream_formations[5].pcm = 8;
+ bebob->rx_stream_formations[6].pcm = 8;
+ if (bebob->maudio_is1814) {
+ bebob->rx_stream_formations[7].pcm = 4;
+ bebob->rx_stream_formations[8].pcm = 4;
+ }
+ } else {
+ bebob->rx_stream_formations[3].pcm = 6;
+ bebob->rx_stream_formations[4].pcm = 6;
+ bebob->rx_stream_formations[5].pcm = 6;
+ bebob->rx_stream_formations[6].pcm = 6;
+ if (bebob->maudio_is1814) {
+ bebob->rx_stream_formations[7].pcm = 4;
+ bebob->rx_stream_formations[8].pcm = 4;
+ }
+ }
+
+ for (i = 3; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ bebob->tx_stream_formations[i].midi = 1;
+ bebob->rx_stream_formations[i].midi = 1;
+ if ((i > 7) && !bebob->maudio_is1814)
+ break;
+ }
+}
+
+static int snd_bebob_maudio_special_add_controls(struct snd_bebob *bebob);
+int
+snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814)
+{
+ int err;
+
+ bebob->maudio_is1814 = is1814;
+
+ /* initialize these parameters because driver is not allowed to ask */
+ err = special_clk_set_params(bebob, 0x03, 0x00, 0x00, 0x00);
+ if (err < 0)
+ dev_err(&bebob->unit->device,
+ "failed to initialize clock params\n");
+
+ err = avc_audio_get_selector(bebob->unit, 0x00, 0x04,
+ &bebob->dig_in_iface);
+ if (err < 0)
+ dev_err(&bebob->unit->device,
+ "failed to get current dig iface.");
+
+ err = snd_bebob_maudio_special_add_controls(bebob);
+ if (err < 0)
+ return -EIO;
+
+ special_stream_formation_set(bebob);
+
+ if (bebob->maudio_is1814) {
+ bebob->midi_input_ports = 1;
+ bebob->midi_output_ports = 1;
+ } else {
+ bebob->midi_input_ports = 2;
+ bebob->midi_output_ports = 2;
+ }
+
+ bebob->maudio_special_quirk = true;
+
+ return 0;
+}
+
+/* Input plug shows actual rate. Output plug is needless for this purpose. */
+static int special_get_rate(struct snd_bebob *bebob, unsigned int *rate)
+{
+ return snd_bebob_get_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_IN);
+}
+static int special_set_rate(struct snd_bebob *bebob, unsigned int rate)
+{
+ int err = snd_bebob_set_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_OUT);
+ msleep(100);
+ if (err < 0)
+ goto end;
+
+ err = snd_bebob_set_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_IN);
+ msleep(100);
+ if (err >= 0)
+ snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ bebob->ctl_id_sync);
+end:
+ return err;
+}
+
+/* Clock source control for special firmware */
+static char *special_clk_labels[] = {
+ SND_BEBOB_CLOCK_INTERNAL " with Digital Mute", "Digital",
+ "Word Clock", SND_BEBOB_CLOCK_INTERNAL};
+static int special_clk_get(struct snd_bebob *bebob,
+ unsigned int *id)
+{
+ *id = bebob->clk_src;
+ return 0;
+}
+static int special_clk_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ einf->count = 1;
+ einf->value.enumerated.items = ARRAY_SIZE(special_clk_labels);
+
+ if (einf->value.enumerated.item >= einf->value.enumerated.items)
+ einf->value.enumerated.item = einf->value.enumerated.items - 1;
+
+ strcpy(einf->value.enumerated.name,
+ special_clk_labels[einf->value.enumerated.item]);
+
+ return 0;
+}
+static int special_clk_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+
+ spin_lock(&bebob->lock);
+ uval->value.enumerated.item[0] = bebob->clk_src;
+ spin_unlock(&bebob->lock);
+
+ return 0;
+}
+static int special_clk_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ int err, id, changed = 0;
+
+ id = uval->value.enumerated.item[0];
+ if (id >= ARRAY_SIZE(special_clk_labels))
+ return 0;
+
+ spin_lock(&bebob->lock);
+ err = special_clk_set_params(bebob, id,
+ bebob->dig_in_fmt,
+ bebob->dig_out_fmt,
+ bebob->clk_lock);
+ changed = (err >= 0);
+ spin_unlock(&bebob->lock);
+
+ return changed;
+}
+static struct snd_kcontrol_new special_clk_ctl = {
+ .name = "Clock Source",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = special_clk_ctl_info,
+ .get = special_clk_ctl_get,
+ .put = special_clk_ctl_put
+};
+
+/* Clock synchronization control for special firmware */
+static int special_sync_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ einf->count = 1;
+ einf->value.integer.min = 0;
+ einf->value.integer.max = 1;
+
+ return 0;
+}
+static int special_sync_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ int err;
+ bool synced = 0;
+
+ mutex_lock(&bebob->mutex);
+ err = check_clk_sync(bebob, METER_SIZE_SPECIAL, &synced);
+ if (err >= 0)
+ uval->value.integer.value[0] = synced;
+ mutex_unlock(&bebob->mutex);
+
+ return 0;
+}
+static struct snd_kcontrol_new special_sync_ctl = {
+ .name = "Sync Status",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .info = special_sync_ctl_info,
+ .get = special_sync_ctl_get,
+};
+
+/* Digital interface control for special firmware */
+static char *special_dig_iface_labels[] = {
+ "S/PDIF Optical", "S/PDIF Coaxial", "ADAT Optical"
+};
+static int special_dig_in_iface_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ einf->count = 1;
+ einf->value.enumerated.items = ARRAY_SIZE(special_dig_iface_labels);
+
+ if (einf->value.enumerated.item >= einf->value.enumerated.items)
+ einf->value.enumerated.item = einf->value.enumerated.items - 1;
+
+ strcpy(einf->value.enumerated.name,
+ special_dig_iface_labels[einf->value.enumerated.item]);
+
+ return 0;
+}
+static int special_dig_in_iface_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ int val;
+
+ /* encoded id for user value */
+ val = (bebob->dig_in_fmt << 1) | (bebob->dig_in_iface & 0x01);
+
+ /* for ADAT Optical */
+ if (val > 2)
+ val = 2;
+
+ uval->value.enumerated.item[0] = val;
+
+ return 0;
+}
+static int special_dig_in_iface_ctl_set(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ unsigned int id, dig_in_fmt, dig_in_iface;
+ int err;
+
+ id = uval->value.enumerated.item[0];
+
+ /* decode user value */
+ dig_in_fmt = (id >> 1) & 0x01;
+ dig_in_iface = id & 0x01;
+
+ err = special_clk_set_params(bebob, bebob->clk_src, dig_in_fmt,
+ bebob->dig_out_fmt, bebob->clk_lock);
+ if ((err < 0) || (bebob->dig_in_fmt > 0)) /* ADAT */
+ goto end;
+
+ err = avc_audio_set_selector(bebob->unit, 0x00, 0x04, dig_in_iface);
+ if (err < 0)
+ goto end;
+
+ bebob->dig_in_iface = dig_in_iface;
+end:
+ special_stream_formation_set(bebob);
+ return err;
+}
+static struct snd_kcontrol_new special_dig_in_iface_ctl = {
+ .name = "Digital Input Interface",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = special_dig_in_iface_ctl_info,
+ .get = special_dig_in_iface_ctl_get,
+ .put = special_dig_in_iface_ctl_set
+};
+
+static int special_dig_out_iface_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ einf->count = 1;
+ einf->value.enumerated.items = ARRAY_SIZE(special_dig_iface_labels) - 1;
+
+ if (einf->value.enumerated.item >= einf->value.enumerated.items)
+ einf->value.enumerated.item = einf->value.enumerated.items - 1;
+
+ strcpy(einf->value.enumerated.name,
+ special_dig_iface_labels[einf->value.enumerated.item + 1]);
+
+ return 0;
+}
+static int special_dig_out_iface_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ uval->value.enumerated.item[0] = bebob->dig_out_fmt;
+ return 0;
+}
+static int special_dig_out_iface_ctl_set(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ unsigned int id;
+ int err;
+
+ id = uval->value.enumerated.item[0];
+
+ err = special_clk_set_params(bebob, bebob->clk_src, bebob->dig_in_fmt,
+ id, bebob->clk_lock);
+ if (err >= 0)
+ special_stream_formation_set(bebob);
+
+ return err;
+}
+static struct snd_kcontrol_new special_dig_out_iface_ctl = {
+ .name = "Digital Output Interface",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = special_dig_out_iface_ctl_info,
+ .get = special_dig_out_iface_ctl_get,
+ .put = special_dig_out_iface_ctl_set
+};
+
+static int snd_bebob_maudio_special_add_controls(struct snd_bebob *bebob)
+{
+ struct snd_kcontrol *kctl;
+ int err;
+
+ kctl = snd_ctl_new1(&special_clk_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+ if (err < 0)
+ goto end;
+
+ kctl = snd_ctl_new1(&special_sync_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+ if (err < 0)
+ goto end;
+ bebob->ctl_id_sync = &kctl->id;
+
+ kctl = snd_ctl_new1(&special_dig_in_iface_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+ if (err < 0)
+ goto end;
+
+ kctl = snd_ctl_new1(&special_dig_out_iface_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+end:
+ return err;
+}
+
+/* Hardware metering for special firmware */
+static char *special_meter_labels[] = {
+ ANA_IN, ANA_IN, ANA_IN, ANA_IN,
+ SPDIF_IN,
+ ADAT_IN, ADAT_IN, ADAT_IN, ADAT_IN,
+ ANA_OUT, ANA_OUT,
+ SPDIF_OUT,
+ ADAT_OUT, ADAT_OUT, ADAT_OUT, ADAT_OUT,
+ HP_OUT, HP_OUT,
+ AUX_OUT
+};
+static int
+special_meter_get(struct snd_bebob *bebob, u32 *target, unsigned int size)
+{
+ u16 *buf;
+ unsigned int i, c, channels;
+ int err;
+
+ channels = ARRAY_SIZE(special_meter_labels) * 2;
+ if (size < channels * sizeof(u32))
+ return -EINVAL;
+
+ /* omit last 4 bytes because it's clock info. */
+ buf = kmalloc(METER_SIZE_SPECIAL - 4, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ err = get_meter(bebob, (void *)buf, METER_SIZE_SPECIAL - 4);
+ if (err < 0)
+ goto end;
+
+ /* some channels are not used, and format is u16 */
+ i = 0;
+ for (c = 2; c < channels + 2; c++)
+ target[i++] = be16_to_cpu(buf[c]) << 16;
+end:
+ kfree(buf);
+ return err;
+}
+
+/* Firewire 410 specific operations */
static char *fw410_meter_labels[] = {
ANA_IN, DIG_IN,
ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, DIG_OUT,
@@ -230,6 +697,27 @@ end:
return err;
}
+/* for special customized devices */
+static struct snd_bebob_rate_spec special_rate_spec = {
+ .get = &special_get_rate,
+ .set = &special_set_rate,
+};
+static struct snd_bebob_clock_spec special_clk_spec = {
+ .num = ARRAY_SIZE(special_clk_labels),
+ .labels = special_clk_labels,
+ .get = &special_clk_get,
+};
+static struct snd_bebob_meter_spec special_meter_spec = {
+ .num = ARRAY_SIZE(special_meter_labels),
+ .labels = special_meter_labels,
+ .get = &special_meter_get
+};
+struct snd_bebob_spec maudio_special_spec = {
+ .clock = &special_clk_spec,
+ .rate = &special_rate_spec,
+ .meter = &special_meter_spec
+};
+
/* Firewire 410 specification */
static struct snd_bebob_rate_spec usual_rate_spec = {
.get = &snd_bebob_stream_get_rate,
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 5865fed..9a5bd58 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -361,9 +361,11 @@ start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream,
conn = &bebob->out_conn;
/* channel mapping */
- err = map_stream(bebob, stream);
- if (err < 0)
- goto end;
+ if (!bebob->maudio_special_quirk) {
+ err = map_stream(bebob, stream);
+ if (err < 0)
+ goto end;
+ }
/* start amdtp stream */
err = amdtp_stream_start(stream,
@@ -482,6 +484,20 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
goto end;
}
+ /*
+ * NOTE:
+ * The firmware customized by M-Audio uses this cue to start
+ * transmit stream. This is not usual way.
+ */
+ if (bebob->maudio_special_quirk) {
+ err = rate_spec->set(bebob, rate);
+ if (err < 0) {
+ amdtp_stream_stop(master);
+ break_both_connections(bebob);
+ goto end;
+ }
+ }
+
/* wait first callback */
if (!amdtp_stream_wait_callback(master)) {
amdtp_stream_stop(master);
--
1.8.3.2
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 51+ messages in thread* [PATCH 38/38] bebob: Send a cue to load firmware for M-Audio Firewire series
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (36 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 37/38] bebob: Add support for M-Audio special " Takashi Sakamoto
@ 2013-12-20 13:14 ` Takashi Sakamoto
2013-12-20 14:46 ` Sample program for hwdep interface Takashi Sakamoto
38 siblings, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 13:14 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This commit is optional. The purpose of this commit is to help testers.
Just powering on, these devices below wait to download firmware.
- Firewire Audiophile
- Firewire 410
- Firewire 1814
- ProjectMix I/O
But firmware version 5058 or later, flash memory in the device stores the
firmware. So this driver can enable these devices by sending a certain cue to
load the firmware. To reading these codes, this cue is a kind of Bootloader
Commands. The role of this cue is to initialize configuration to factory
settings.
I think this functionality should be implemented in user-land. FFADO already
have 'ffado-bridgeco-downloader' to take the device to download firmware. To
read these codes, this cue is a kind of Bootloader Commands. The role of this
cue is to initialize configuration to factory settings
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/bebob/bebob.c | 23 ++++++++-----
sound/firewire/bebob/bebob.h | 2 ++
sound/firewire/bebob/bebob_maudio.c | 69 +++++++++++++++++++++++++++++++++++++
3 files changed, 85 insertions(+), 9 deletions(-)
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 65e856e..6952b80 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -179,18 +179,21 @@ bebob_probe(struct fw_unit *unit,
}
if ((entry->vendor_id == VEN_FOCUSRITE) &&
- (entry->model_id == MODEL_FOCUSRITE_SAFFIRE_BOTH)) {
+ (entry->model_id == MODEL_FOCUSRITE_SAFFIRE_BOTH))
spec = get_saffire_spec(unit);
- } else if ((entry->vendor_id == VEN_MAUDIO1) &&
- (entry->model_id == MODEL_MAUDIO_AUDIOPHILE_BOTH) &&
- !check_audiophile_booted(unit)) {
- err = 0;
- goto end;
- } else {
+ else if ((entry->vendor_id == VEN_MAUDIO1) &&
+ (entry->model_id == MODEL_MAUDIO_AUDIOPHILE_BOTH) &&
+ !check_audiophile_booted(unit))
+ spec = NULL;
+ else
spec = (const struct snd_bebob_spec *)entry->driver_data;
- }
+
if (spec == NULL) {
- err = -ENOSYS;
+ if ((entry->vendor_id == VEN_MAUDIO1) ||
+ (entry->vendor_id == VEN_MAUDIO2))
+ err = snd_bebob_maudio_load_firmware(unit);
+ else
+ err = -ENOSYS;
goto end;
}
@@ -367,6 +370,7 @@ static const struct ieee1394_device_id bebob_id_table[] = {
SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, MODEL_FOCUSRITE_SAFFIRE_BOTH,
&saffire_spec),
/* M-Audio, Firewire 410 */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO2, 0x00010058, NULL), /* bootloader */
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO2, 0x00010046, &maudio_fw410_spec),
/* M-Audio, Firewire Audiophile */
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_AUDIOPHILE_BOTH,
@@ -380,6 +384,7 @@ static const struct ieee1394_device_id bebob_id_table[] = {
/* M-Audio, ProFireLightbridge */
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x000100a1, &spec_normal),
/* Firewire 1814 */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010070, NULL), /* bootloader */
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_FW1814,
&maudio_special_spec),
/* M-Audio ProjectMix */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index c65e7b3..de7f398 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -254,6 +254,8 @@ extern struct snd_bebob_spec maudio_nrv10_spec;
extern struct snd_bebob_spec maudio_special_spec;
int snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814);
+int snd_bebob_maudio_load_firmware(struct fw_unit *unit);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
index b941042..96e949f 100644
--- a/sound/firewire/bebob/bebob_maudio.c
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -16,6 +16,15 @@
* settings when completing uploading. Then these devices generate bus reset
* and are recognized as new devices with the firmware.
*
+ * But with firmware version 5058 or later, the firmware is stored to flash
+ * memory in the device and drivers can tell DM1000 to load the firmware by
+ * sending a cue. This cue must be sent one time.
+ *
+ * If the firmware blobs are in alsa-firmware package, this driver can support
+ * these devices with any firmware versions. (Then this driver need codes to
+ * upload the firmware blob.) But for this, the license of firmware blob needs
+ * to be considered.
+ *
* For streaming, both of output and input streams are needed for Firewire 410
* and Ozonic. The single stream is OK for the other devices even if the clock
* source is not SYT-Match (I note no devices use SYT-Match).
@@ -31,6 +40,20 @@
* functionality is between 0xffc700700000 to 0xffc70070009c.
*/
+/* Offset from information register */
+#define INFO_OFFSET_SW_DATE 0x20
+
+/* Bootloader Protocol Version 1 */
+#define MAUDIO_BOOTLOADER_CUE1 0x00000001
+/*
+ * Initializing configuration to factory settings (= 0x1101), (swapped in line),
+ * Command code is zero (= 0x00),
+ * the number of operands is zero (= 0x00)(at least significant byte)
+ */
+#define MAUDIO_BOOTLOADER_CUE2 0x01110000
+/* padding */
+#define MAUDIO_BOOTLOADER_CUE3 0x00000000
+
#define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000
#define METER_OFFSET 0x00600000
@@ -58,6 +81,52 @@
/* for NRV */
#define UNKNOWN_METER "Unknown"
+/*
+ * For some M-Audio devices, this module just send cue to load firmware. After
+ * loading, the device generates bus reset and newly detected.
+ *
+ * If we make any transactions to load firmware, the operation may failed.
+ */
+int snd_bebob_maudio_load_firmware(struct fw_unit *unit)
+{
+ struct fw_device *device = fw_parent_device(unit);
+ int err, rcode;
+ u64 date;
+ __be32 cues[3] = {
+ MAUDIO_BOOTLOADER_CUE1,
+ MAUDIO_BOOTLOADER_CUE2,
+ MAUDIO_BOOTLOADER_CUE3
+ };
+
+ /* check date of software used to build */
+ err = snd_bebob_read_block(unit, INFO_OFFSET_SW_DATE,
+ &date, sizeof(u64));
+ if (err < 0)
+ goto end;
+ /*
+ * firmware version 5058 or later has date later than "20070401", but
+ * 'date' is not null-terminated.
+ */
+ if (date < 0x3230303730343031) {
+ dev_err(&unit->device,
+ "Use firmware version 5058 or later\n");
+ err = -ENOSYS;
+ goto end;
+ }
+
+ rcode = fw_run_transaction(device->card, TCODE_WRITE_BLOCK_REQUEST,
+ device->node_id, device->generation,
+ device->max_speed, BEBOB_ADDR_REG_REQ,
+ cues, sizeof(cues));
+ if (rcode != RCODE_COMPLETE) {
+ dev_err(&unit->device,
+ "Failed to send a cue to load firmware\n");
+ err = -EIO;
+ }
+end:
+ return err;
+}
+
static inline int
get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
{
--
1.8.3.2
------------------------------------------------------------------------------
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organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
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^ permalink raw reply related [flat|nested] 51+ messages in thread* Sample program for hwdep interface
2013-12-20 13:13 [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices Takashi Sakamoto
` (37 preceding siblings ...)
2013-12-20 13:14 ` [PATCH 38/38] bebob: Send a cue to load firmware for M-Audio " Takashi Sakamoto
@ 2013-12-20 14:46 ` Takashi Sakamoto
2013-12-21 10:11 ` [FFADO-devel] " Jonathan Woithe
38 siblings, 1 reply; 51+ messages in thread
From: Takashi Sakamoto @ 2013-12-20 14:46 UTC (permalink / raw)
To: clemens, tiwai, perex; +Cc: alsa-devel, linux1394-devel, ffado-devel
This is how to use hwdep interface for firewire devices.
I hope FFADO developers read this.
With hwdep interface, the program in user land can do:
1.get firewire node infomation
2.get notification when starting/stopping kernel streaming
3.lock/unlock kernel streaming
For jackd with FFADO backend, it's better to lock kernel streaming in
advance. Then snd-bebob/snd-fireworks can't interrupt FFADO streaming.
And with snd-fireworks, the program can do:
4.transmit command of EFW transaction
5.receive response of EFW transaction
4/5 is my complete solution for ticket #360.
Make echo audiofire 8 and audiofire 12 work with recent firmwares
http://subversion.ffado.org/ticket/360
(I note 4 can be done via /dev/fw*. But I think 4 is easier.)
If someone works for snd-dice to support valid devices, it may be useful
that the program get dice notification in the same way.
(I have a little knowledgement about Dice.)
I attach sample program (too rough...) to show how to use hwdep interface.
Regards,
Takashi Sakamoto
====
/* monitor.c: program to monitor the status of firewire sound devices */
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <endian.h>
#include <time.h>
#include <sys/ioctl.h>
#include <sys/epoll.h>
#include <souund/firewire.h>
static struct snd_firewire_get_info hwdep_info;
bool try_lock;
bool fireworks = false;
static void print_event_lock(struct snd_firewire_event_lock_status *msg,
int fd)
{
printf("\nLock Status:\n");
printf("Status:\t%s\n", msg->status ? "Locked" : "Unlocked" );
if (try_lock) {
if (ioctl(fd, SNDRV_FIREWIRE_IOCTL_LOCK) < 0)
printf("lock failed\n");
printf("lock success\n");
}
return;
}
static void print_event_dice(struct snd_firewire_event_dice_notification
*msg)
{
printf("\nDice Norification:\n");
printf("Notification: 0x%x\n", msg->notification);
return;
}
static void print_event_efw(struct snd_firewire_event_efw_response *evt,
int count)
{
uint32_t *resp;
struct snd_efw_transaction *t;
unsigned int i, index, length, params;
resp = evt->response;
count /= 4;
index = 0;
while (count > 0) {
t = (struct snd_efw_transaction *)resp;
length = be32toh(t->length);
printf("\nEFW Response %d:\n", index++);
printf("Length:\t\t%d\n", be32toh(t->length));
printf("Version:\t%d\n", be32toh(t->version));
printf("Seqnum:\t\t%d\n", be32toh(t->seqnum));
printf("Category:\t%d\n", be32toh(t->category));
printf("Command:\t%d\n", be32toh(t->command));
printf("Status:\t\t%d\n", be32toh(t->status));
params = length - sizeof(struct snd_efw_transaction) / sizeof(uint32_t);
if (params > 0)
for (i = 0; i < params; i++)
printf("params[%d]:\t%08X\n", i, be32toh(t->params[i]));
resp += length;
count -= length * sizeof(uint32_t);
}
}
static int read_event(int fd)
{
int count;
char buf[1024] = {0};
struct snd_firewire_event_common *event;
count = read(fd, buf, 1024);
if (count < 0)
return -1;
event = (struct snd_firewire_event_common *)buf;
if (event->type == SNDRV_FIREWIRE_EVENT_LOCK_STATUS)
print_event_lock((struct snd_firewire_event_lock_status *)buf, fd);
else if (event->type == SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION)
print_event_dice((struct snd_firewire_event_dice_notification *)buf);
else if (event->type == SNDRV_FIREWIRE_EVENT_EFW_RESPONSE)
print_event_efw((struct snd_firewire_event_efw_response *)buf, count);
return 0;
}
static int write_event(int fd)
{
int count;
struct snd_efw_transaction *t;
char buf[1024] = {0};
t = (struct snd_efw_transaction *)buf;
t->length = htobe32(6);
t->version = htobe32(1);
t->seqnum = htobe32(0);
t->category = htobe32(3);
t->command = htobe32(5);
t->status = htobe32(0);
count = write(fd, buf, sizeof(struct snd_efw_transaction));
if (count < 0)
printf("err: %d\n", count);
return count;
}
#define EVENTS 10
time_t cmd_deffer = 0;
static int main_loop(int fd)
{
int epfd, count, i, err;
time_t now;
struct epoll_event ev, events[EVENTS];
epfd = epoll_create(EVENTS);
if (epfd < 0) {
printf("error: %s\n", strerror(errno));
err = errno;
goto end;
}
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = fd;
if (fireworks)
ev.events |= EPOLLOUT;
if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev) < 0)
return errno;
while (1) {
count = epoll_wait(epfd, events, EVENTS, 200);
if (count == 0)
continue;
else if (count < 0) {
err = errno;
break;
}
for (i = 0; i < count; i++) {
if (events[i].events & EPOLLOUT) {
if (time(&now) < 0)
break;
if (now > cmd_deffer) {
if (write_event(events[i].data.fd) < 0) {
err = errno;
break;
}
cmd_deffer = now + 3;
}
}
if (events[i].events & EPOLLIN) {
if (read_event(events[i].data.fd) < 0) {
err = errno;
break;
}
}
}
}
end:
close(epfd);
return err;
}
int main(int argc, void *argv[])
{
int fd, count, err;
char buf[1024] = {};
struct snd_firewire_event_common *event;
if (argc > 2)
try_lock = true;
fd = open(argv[1], O_RDWR);
if (fd < 0) {
printf("fail to open: %s\n", (char *)argv[1]);
return 1;
}
if (ioctl(fd, SNDRV_FIREWIRE_IOCTL_GET_INFO, &hwdep_info) < 0) {
printf("error: %s\n", strerror(errno));
return 1;
}
printf("Information of Firewire Sound Device\n");
printf("type: %d\n", hwdep_info.type);
printf("card: %d\n", hwdep_info.card);
printf("GUID: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
hwdep_info.guid[0], hwdep_info.guid[1], hwdep_info.guid[2],
hwdep_info.guid[3], hwdep_info.guid[4], hwdep_info.guid[5],
hwdep_info.guid[6], hwdep_info.guid[7] );
printf("Name: %s\n\n", hwdep_info.device_name);
if (hwdep_info.type == SNDRV_FIREWIRE_TYPE_FIREWORKS)
fireworks = true;
err = main_loop(fd);
close(fd);
return err;
}
^ permalink raw reply [flat|nested] 51+ messages in thread* Re: [FFADO-devel] Sample program for hwdep interface
2013-12-20 14:46 ` Sample program for hwdep interface Takashi Sakamoto
@ 2013-12-21 10:11 ` Jonathan Woithe
2013-12-21 13:48 ` Clemens Ladisch
2014-01-05 11:18 ` Takashi Sakamoto
0 siblings, 2 replies; 51+ messages in thread
From: Jonathan Woithe @ 2013-12-21 10:11 UTC (permalink / raw)
To: Takashi Sakamoto; +Cc: jwoithe, alsa-devel, linux1394-devel, ffado-devel
Hi Takashi
[CC list trimmed to include just the lists]
On Fri, Dec 20, 2013 at 11:46:15PM +0900, Takashi Sakamoto wrote:
> This is how to use hwdep interface for firewire devices.
> I hope FFADO developers read this.
>
> With hwdep interface, the program in user land can do:
> 1.get firewire node infomation
> 2.get notification when starting/stopping kernel streaming
> 3.lock/unlock kernel streaming
1 could be useful. 2 and 3, while not essential, are nice to have.
> For jackd with FFADO backend, it's better to lock kernel streaming in
> advance. Then snd-bebob/snd-fireworks can't interrupt FFADO streaming.
If someone is using a kernel which has the streaming drivers for these
devices there would be no reason at all for that person to run FFADO's
streaming driver. They would just use the ALSA jackd backend and be done
with it. So rather than having FFADO mess around with this locking I think
it would be better in the long run for FFADO to determine whether there's
kernel streaming support for the device in question and refuse to run if
there is.
> And with snd-fireworks, the program can do:
> 4.transmit command of EFW transaction
> 5.receive response of EFW transaction
>
> 4/5 is my complete solution for ticket #360.
> Make echo audiofire 8 and audiofire 12 work with recent firmwares
> http://subversion.ffado.org/ticket/360
I thought this ticket was more or less resolved. How exactly does this
program deal with ticket #360? This ticket requires fixes within FFADO's
mixer/control code (or so I thought). Or is this program simply
demonstrating what FFADO must do?
Thanks for your ongoing work with these devices.
Regards
jonathan
^ permalink raw reply [flat|nested] 51+ messages in thread
* Re: [FFADO-devel] Sample program for hwdep interface
2013-12-21 10:11 ` [FFADO-devel] " Jonathan Woithe
@ 2013-12-21 13:48 ` Clemens Ladisch
2014-01-05 11:18 ` Takashi Sakamoto
1 sibling, 0 replies; 51+ messages in thread
From: Clemens Ladisch @ 2013-12-21 13:48 UTC (permalink / raw)
To: Jonathan Woithe
Cc: alsa-devel, linux1394-devel, ffado-devel, Takashi Sakamoto
Jonathan Woithe wrote:
> On Fri, Dec 20, 2013 at 11:46:15PM +0900, Takashi Sakamoto wrote:
>> This is how to use hwdep interface for firewire devices.
>> I hope FFADO developers read this.
>>
>> With hwdep interface, the program in user land can do:
>> 1.get firewire node infomation
>> 2.get notification when starting/stopping kernel streaming
>> 3.lock/unlock kernel streaming
>
> 1 could be useful. 2 and 3, while not essential, are nice to have.
If a device has some settings that must not be changed while streaming
is active, the mixer application must take the lock before attempting
to change them. The lock notification is needed for disabling/enabling
those control widgets.
> ... for FFADO to determine whether there's kernel streaming support
> for the device in question
This could be done either by enumerating ALSA hwdep devices, or by
looking in sysfs whether the device has any attached driver.
>> And with snd-fireworks, the program can do:
>> 4.transmit command of EFW transaction
>> 5.receive response of EFW transaction
>>
>> 4/5 is my complete solution for ticket #360.
I.e., sending commands not through FCP, but with the vendor-specific
addresses 0xecc000000000 (device) and 0xecc080000000 (PC).
> I thought this ticket was more or less resolved. How exactly does this
> program deal with ticket #360? This ticket requires fixes within FFADO's
> mixer/control code (or so I thought).
Yes, FFADO must allocate the reply address range.
But _if_ the kernel driver and FFADO are both running, FFADO must go
through the driver because the address range is already allocated.
Regards,
Clemens
^ permalink raw reply [flat|nested] 51+ messages in thread
* Re: Sample program for hwdep interface
2013-12-21 10:11 ` [FFADO-devel] " Jonathan Woithe
2013-12-21 13:48 ` Clemens Ladisch
@ 2014-01-05 11:18 ` Takashi Sakamoto
2014-01-12 13:22 ` Stefan Richter
1 sibling, 1 reply; 51+ messages in thread
From: Takashi Sakamoto @ 2014-01-05 11:18 UTC (permalink / raw)
To: Jonathan Woithe; +Cc: alsa-devel, linux1394-devel, ffado-devel
Jonathan, Clemens,
I'm sorry to be late for reply but I need to enjoy my year-end holidays
to refresh my brain.
(Dec 21 2013 19:11), Jonathan Woithe wrote:
> I thought this ticket was more or less resolved.
I've just added a workaround for this ticket.
My patch avoids buffer-over-run/assertion and apply some fallback.
Then FFADO just looks to handle the models.
(Dec 21 2013 19:11), Jonathan Woithe wrote:
> This ticket requires fixes within FFADO's mixer/control code (or so I
thought).
Yes. And this ticket still affects FFADO's streaming functionality.
(Dec 21 2013 19:11), Jonathan Woithe wrote:
> How exactly does this program deal with ticket #360?
> Or is this program simply demonstrating what FFADO must do?
This program just demonstrates how to use hwdep interface.
For Fireworks, via this interface, FFADO can use all of implemented
commands without failures. And it's my solution for this ticket.
Here, I try to describe the detail related to this ticket[1].
I should have mentioned the detail in ffado-devel but I got the whole
picture in the end of last year.
Cause:
The bug is due to failure of some commands in some models.
The commands are 'EfcGetClockCmd' and 'EfcPolledValuesCmd'.
These commands are used to get device status.
The bug appears in initializing process of FFADO.
So this bug affects both streaming and mixer/control functionality.
Workaround:
Using alternative way when failed.
- 'AV/C PLUG SIGNAL FORMAT' command to get sampling rate (applied at
r2240)
- 'AV/C SIGNAL SOURCE' command to get clock source (not applied)
But disadvantages.
- No alternatives for 'EfcPolledValuesCmd'
- GenericAVC device class has a bug to switch sampling rate (I'm under
further investigation.)
Fact:
I actually confirmed these commands are failed in one of reported models.
But these commands are success in unreported models.
FFADO implementation of these commands is over 'AV/C VENDOR DEPENDENT'
command.
So I tried these commands via specific addresses which Windows driver uses.
Then I got always success in the models.
Information:
In the end of last year, I had a contact in Echo Audio.
I asked the implementation of 'Echo Fireworks Command/Response' over
'AV/C vendor dependent' command.
The person answered that some commands are not implemented on current
firmware for reported models.
(I have no information for the reason.)
The person also said that there are no differences between firmwares
installed by drivers of Windows/OS X.
A solution:
Using these addresses for command/response.
An issue:
Using an address range for response has an issue.
The address range is an exclusive-resource in an system [2].
In my opinion, considering ALSA/FFADO, it's better that such resource is
used
in kernel-land driver and the driver gives an interface to use it for
user-land
application.
Of cource, there is another way, to use this resource just in
one user-land application such as ffado-dbus-server.
Then I need to make another way for kernel-land driver.
(Maybe implementing alternative AV/C commands)
[1] http://subversion.ffado.org/ticket/360
[2]
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-December/070447.html
Regards
Takashi Sakamoto
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
^ permalink raw reply [flat|nested] 51+ messages in thread
* Re: Sample program for hwdep interface
2014-01-05 11:18 ` Takashi Sakamoto
@ 2014-01-12 13:22 ` Stefan Richter
2014-01-12 15:26 ` Takashi Sakamoto
0 siblings, 1 reply; 51+ messages in thread
From: Stefan Richter @ 2014-01-12 13:22 UTC (permalink / raw)
To: Takashi Sakamoto, Clemens Ladisch
Cc: alsa-devel, Jonathan Woithe, linux1394-devel, ffado-devel
On Jan 05 Takashi Sakamoto wrote:
[...]
> This program just demonstrates how to use hwdep interface.
>
> For Fireworks, via this interface, FFADO can use all of implemented
> commands without failures. And it's my solution for this ticket.
>
> Here, I try to describe the detail related to this ticket[1].
> I should have mentioned the detail in ffado-devel but I got the whole
> picture in the end of last year.
>
> Cause:
> The bug is due to failure of some commands in some models.
> The commands are 'EfcGetClockCmd' and 'EfcPolledValuesCmd'.
> These commands are used to get device status.
> The bug appears in initializing process of FFADO.
> So this bug affects both streaming and mixer/control functionality.
[...]
> In the end of last year, I had a contact in Echo Audio.
> I asked the implementation of 'Echo Fireworks Command/Response' over
> 'AV/C vendor dependent' command.
> The person answered that some commands are not implemented on current
> firmware for reported models.
> (I have no information for the reason.)
> The person also said that there are no differences between firmwares
> installed by drivers of Windows/OS X.
>
> A solution:
> Using these addresses for command/response.
>
> An issue:
> Using an address range for response has an issue.
> The address range is an exclusive-resource in an system [2].
>
> In my opinion, considering ALSA/FFADO, it's better that such resource is used
> in kernel-land driver and the driver gives an interface to use it for user-land
> application.
>
> Of cource, there is another way, to use this resource just in
> one user-land application such as ffado-dbus-server.
> Then I need to make another way for kernel-land driver.
> (Maybe implementing alternative AV/C commands)
>
> [1] http://subversion.ffado.org/ticket/360
> [2] http://mailman.alsa-project.org/pipermail/alsa-devel/2013-December/070447.html
Takashi and Clemens,
another alternative would be to implement sharing/multiplexing of the EFC
response address range in firewire-core, like it is implemented for
FCP_COMMAND and FCP_RESPONSE. Not sure if it is wise to share nonstandard
address ranges though.
--
Stefan Richter
-=====-====- ---= -==--
http://arcgraph.de/sr/
^ permalink raw reply [flat|nested] 51+ messages in thread
* Re: Sample program for hwdep interface
2014-01-12 13:22 ` Stefan Richter
@ 2014-01-12 15:26 ` Takashi Sakamoto
2014-02-02 13:58 ` Echo Fireworks control protocol (was Re: Sample program for hwdep interface) Stefan Richter
0 siblings, 1 reply; 51+ messages in thread
From: Takashi Sakamoto @ 2014-01-12 15:26 UTC (permalink / raw)
To: Stefan Richter, Clemens Ladisch
Cc: alsa-devel, Jonathan Woithe, linux1394-devel, ffado-devel
Hi Stefan,
> another alternative would be to implement sharing/multiplexing of the
> EFC response address range in firewire-core, like it is implemented
> for FCP_COMMAND and FCP_RESPONSE. Not sure if it is wise to share
> nonstandard address ranges though.
Currently I'm considering to use AV/C-command-based EFC in kernel-land.
Fireworks has a face of GenericAVC and commands with issue may be
replaced with some AV/C commands for a few purposes (but I have never
checked my idea).
I need more time for this issue.
And, just from my curiosity, is your solution allowed by related
specifications such as OHCI1394 or IEEE1394? I have a little
knowledgement about these specification.
Regards
Takashi Sakamoto
o-takashi@sakamocchi.jp
^ permalink raw reply [flat|nested] 51+ messages in thread
* Echo Fireworks control protocol (was Re: Sample program for hwdep interface)
2014-01-12 15:26 ` Takashi Sakamoto
@ 2014-02-02 13:58 ` Stefan Richter
2014-02-08 13:22 ` Takashi Sakamoto
0 siblings, 1 reply; 51+ messages in thread
From: Stefan Richter @ 2014-02-02 13:58 UTC (permalink / raw)
To: Takashi Sakamoto
Cc: alsa-devel, Jonathan Woithe, Clemens Ladisch, ffado-devel,
linux1394-devel
On Jan 13 Takashi Sakamoto wrote:
> Hi Stefan,
>
> > another alternative would be to implement sharing/multiplexing of the
> > EFC response address range in firewire-core, like it is implemented
> > for FCP_COMMAND and FCP_RESPONSE. Not sure if it is wise to share
> > nonstandard address ranges though.
>
> Currently I'm considering to use AV/C-command-based EFC in kernel-land.
> Fireworks has a face of GenericAVC and commands with issue may be
> replaced with some AV/C commands for a few purposes (but I have never
> checked my idea).
>
> I need more time for this issue.
>
> And, just from my curiosity, is your solution allowed by related
> specifications such as OHCI1394 or IEEE1394? I have a little
> knowledgement about these specification.
I figure from your driver your that EFC_COMMAND and EFC_RESPONSE are
located at
[0xecc0'0000'0000...0xecc0'0000'0200) and
[0xecc0'8000'0000...0xecc0'8000'0200),
although the latter apparently could be reconfigured by the controller
according to a comment in your sources. On the other hand, FCP_COMMAND
and FCP_RESPONSE are of course located at the addresses
[0xffff'f000'0b00...0xffff'f000'0d00) and
[0xffff'f000'0d00...0xffff'f000'0f00),
which are not configurable.
So, let's see what the specifications provide for these address ranges.
OHCI-1394
---------
>From the point of view of OHCI-1394 --- which can be roughly described as a
specification for 1394 link layer controllers or 1394-to-PCI bridges ---,
DMA programming of the EFC address range works in the same way as with the
FCP address range, i.e. by asynchronous reception DMA in buffer-fill style.
The two address ranges are treated differently though with respect to
acknowledge packets and 1394 response subactions: According to OHCI-1394
clauses 3.3.2 and 3.3.3, incoming write requests to addresses below
0xffff'0000'0000 are immediately acknowledged with ack_complete by the
OHCI, whereas any requests to addresses at or above 0xffff'0000'0000 are
acknowledged with ack_pending by the OHCI and presumably followed up by a
subsequent 1394 response subaction from transaction layer software.
Assuming that we have an FCP controller with an OHCI link-layer controller
and an FCP target with an OHCI link layer, then a typical FCP transaction
would look like this (c = controller node, t = target node, req = 1394
write request packet, rsp = 1394 write response packet):
(FCP transaction request subaction)
c->t req at 0xffff'f000'0b00
t->c ack_pending
t->c rsp re: 0xffff'f000'0b00
c->t ack_complete
(FCP transaction response subaction)
t->c req at 0xffff'f000'0d00
c->t ack_pending
c->t rsp re: 0xffff'f000'0d00
t->c ack_complete
I.e. one FCP transaction is typically wrapped into IEEE 1212/ IEEE 1394
split transactions. In contrast, EFC transactions are wrapped into IEEE
1212/ IEEE 1394 unified transactions (if we assume that EFC controller
and EFC responder had an OHCI link layer):
(EFC transaction request subaction)
c->t req at 0xecc0'0000'0000
t->c ack_complete
(EFC transaction response subaction)
t->c req at 0xecc0'8000'0000
c->t ack_complete
Link layer controllers which are *not* OHCI-1394 implementations may use
one or the other 1212/ 1394 transaction type in either of the two
transport protocols. Furthermore, OHCI-1394 also allows split transaction
behavior to be configured for the range below 0xffff'0000'0000, but Linux'
firewire-ohci and older Linux' ohci1394 configure unified transaction
behavior, which is implemented by means of posted host bus writes by the
OHCI. Lastly, some OHCI-1394 hardware allows addresses like the EFC range
to be covered by the physical response unit, but neither firewire-ohci nor
ohci1394 extend the OHCI physical response range over the EFC register
range.
Anyway; the use of split or unified transactions is immaterial to the
question of exclusive use versus shared use of these address ranges by the
application layer.
IEEE 1212
---------
The IEEE 1212 Control and Status Registers (CSR) Architecture for
Microcomputer buses defines the following address ranges within node
address space:
Memory space,
[0x0000'0000'0000...0xffff'e000'0000):
"The name reflects a historical expectation that node resources
located here exhibit behaviors usually associated with memory.
That is, read and write transactions do not have side effects.
In fact, any node resources may be located in this address space
--- even registers with associated side effects."
That is, EFC uses Memory space. (Particularly, it uses Memory space for
two vendor-defined registers with write side effects.)
Private space,
[0xffff'e000'0000...0xffff'f000'0000):
"Allocated for vendor-dependent uses local to the node. Some
implementations may preclude the reuse of an internal address as
an externally accessible bus address."
Register space,
[0xffff'f000'0000...0x1'0000'0000'0000):
"Register space is allocated for the definition of registers that
may have side effects when accessed; it includes standard CSR
architecture registers, bus-dependent registers, configuration
ROM, and units space."
CSR architecture registers,
[0xffff'f000'0000...0xffff'f000'0200):
These are registers defined by IEEE 1212 itself.
Bus-dependent registers,
[0xffff'f000'0200...0xffff'f000'0400):
These are registers defined by bus standards based on IEEE 1212,
notably IEEE 1394.
Configuration ROM,
[0xffff'f000'0400...0xffff'f000'0800):
This is a read-only register whose format is defined by IEEE 1212
and whose contents are defined by IEEE 1212, by bus standards like
IEEE 1394, and by unit architecture standards like SBP-2, RFC 2734,
IEC 61883, AV/C specifications, and others.
Units space,
[0xffff'f000'0800...0x1'0000'0000'0000):
"Allocated for cooperative, shared definition by the applicable
bus standard or the organizations or vendors responsible for unit
architectures."
That is, FCP uses Units space.
According to this, we can do anything we want within the EFC address range
(just take care that different applications do not confuse each other),
whereas we have to take higher-level specifications into account when
we deal with the FCP address range.
IEEE 1394
---------
IEEE 1394 High-Performance Serial Bus does not add any provisions for CSR
Architecture Memory space or Private space. It only adds definitions
concerning all three sub-ranges of Register space. IEEE 1394 explicitly
reserves [0xffff'f000'0900...0xffff'f000'0a00) for IEC 61883-1 plug
control registers and [0xffff'f000'0b00...0xffff'f000'0f00) for IEC
61883-1 FCP command and response registers.
IEC 61883-1
-----------
Among else this specification defines how FCP transactions are
encapsulated in IEEE 1212/ IEEE 1394 transactions, and how the headers of
FCP request and response frames look. The fact that response headers
repeat certain parts of the request header, together with the IEEE 1394
transaction layer implementation (firewire-core) giving the
bus:generation:node tuple from which an FCP response frame originated,
allows firewire-core to hand out copies of each incoming FCP response
frame to all applications that registered themselves as listeners to
FCP_RESPONSE. It is then the responsibility of the application to sort
out whether or not the FCP response belongs to any of the FCP requests
which this application sent out. Such application programs can be
implemented in userspace or in kernelspace. The firedtv DVB driver is an
example of the latter kind.
>From comments in your sources (added by patch 19/52 "fireworks: Add
transaction and some commands"), I guess that bytes 1...4 in EFC response
frames allow applications to match response frames with request frames.
If so, the implementation could be organized similarly to FCP:
firewire-core could allow multiple application programs (in kernelspace or
in userspace) to register for listening at
[0xecc0'8000'0000...0xecc0'8000'0200) and would give copies of all
incoming EFC response frames to all listeners. It would then be the
responsibility of the listeners to sort out which of the responses are
theirs, and which to ignore. When implemented correctly in those
applications, this matching of commands and responses would work with any
number of controller applications and with any number of target devices on
any number of 1394 buses attached to the host.
However, there are some more considerations:
- This perhaps requires that none of the EFC controllers tell the EFC
target to use an EFC_RESPONSE address other than the default,
0xecc0'8000'0000.
- How well do Fireworks devices deal with overlapping EFC transactions?
In other words, may two or even more controller applications (e.g. one
streaming driver in kernelspace and one mixer UI in userspace) operate
independently, or do they have to coordinate certain actions?
- In firewire-core, we could hardwire shared use of
[0xecc0'8000'0000...0xecc0'8000'0200) just like we hardwired shared
use of FCP_COMMAND and FCP_RESPONSE. This assumes that no other
application --- outside of Fireworks control applications --- attempts
to use this address range.
Or we could add an in-kernel API and kernel--userspace ABI which lets
applications request shared listening to an address range (in contrast
to the existing API/ ABI which lets applications register for
exclusive listening to an address range).
In the latter case, the userspace ABI could be either firewire-core's
firewire-cdev interface, or it could be ALSA's hwdep interface.
In the former case, firewire-cdev and/or hwdep could be used as well,
although firewire-cdev would be the more natural choice.
I understood from Clemens' comments that he intended that mixer
applications should use hwdep only
- to match ALSA hwdep nodes with firewire-cdev nodes,
- to lock/ unlock streaming,
- in the future: to receive certain status information from the ALSA
driver if that status is only available as in-band data from the
isochronous data stream, or if that status is nowhere available
because it is implicit status of write-only registers,
whereas the mixer applications are supposed to use firewire-cdev for all
their other dealings with the audio devices. (Clemens and Jonathan,
correct me if I misunderstood or if I forgot other control and status I/O
that is only possible with direct cooperation by the ALSA driver.)
--
Stefan Richter
-=====-====- ---= ====-
http://arcgraph.de/sr/
^ permalink raw reply [flat|nested] 51+ messages in thread* Re: Echo Fireworks control protocol (was Re: Sample program for hwdep interface)
2014-02-02 13:58 ` Echo Fireworks control protocol (was Re: Sample program for hwdep interface) Stefan Richter
@ 2014-02-08 13:22 ` Takashi Sakamoto
2014-02-09 11:42 ` Jonathan Woithe
0 siblings, 1 reply; 51+ messages in thread
From: Takashi Sakamoto @ 2014-02-08 13:22 UTC (permalink / raw)
To: Stefan Richter
Cc: alsa-devel, Jonathan Woithe, Clemens Ladisch, ffado-devel,
linux1394-devel
Hi Stefan,
I'm sorry to be late for reply but I've been reading related
specifications and check your message.
> OHCI-1394
> ---------
> Assuming that we have an FCP controller with an OHCI link-layer controller
> and an FCP target with an OHCI link layer, then a typical FCP transaction
> would look like this (c = controller node, t = target node, req = 1394
> write request packet, rsp = 1394 write response packet):
>
> (FCP transaction request subaction)
> c->t req at 0xffff'f000'0b00
> t->c ack_pending
> t->c rsp re: 0xffff'f000'0b00
> c->t ack_complete
> (FCP transaction response subaction)
> t->c req at 0xffff'f000'0d00
> c->t ack_pending
> c->t rsp re: 0xffff'f000'0d00
> t->c ack_complete
>
> I.e. one FCP transaction is typically wrapped into IEEE 1212/ IEEE 1394
> split transactions. In contrast, EFC transactions are wrapped into IEEE
> 1212/ IEEE 1394 unified transactions (if we assume that EFC controller
> and EFC responder had an OHCI link layer):
>
> (EFC transaction request subaction)
> c->t req at 0xecc0'0000'0000
> t->c ack_complete
> (EFC transaction response subaction)
> t->c req at 0xecc0'8000'0000
> c->t ack_complete
Here is a log with debug=1 for firewire-ohci.
A FCP transaction:
[ 2234.652306] firewire_ohci 0000:0c:06.0: AT spd 2 tl 35, ffc1 -> ffc0,
ack_pending , BW req, fffff0000b00 28,0
[ 2234.652434] firewire_ohci 0000:0c:06.0: AR spd 2 tl 35, ffc0 -> ffc1,
ack_complete, W resp
[ 2234.653719] firewire_ohci 0000:0c:06.0: AR spd 2 tl 36, ffc0 -> ffc1,
ack_pending , BW req, fffff0000d00 128,0
[ 2234.653764] firewire_ohci 0000:0c:06.0: AT spd 2 tl 36, ffc1 -> ffc0,
ack_complete, W resp
AN EFC transaction:
[ 2340.506243] firewire_ohci 0000:0c:06.0: AT spd 2 tl 38, ffc1 -> ffc0,
ack_pending , BW req, ecc000000000 18,0
[ 2340.506336] firewire_ohci 0000:0c:06.0: AR spd 2 tl 38, ffc0 -> ffc1,
ack_complete, W resp
[ 2340.506450] firewire_ohci 0000:0c:06.0: AR spd 2 tl 1f, ffc0 -> ffc1,
ack_complete, BW req, ecc080000000 24,0
(fw_send_request() is canceled because (request->ack == ACK_COMPLETE))
I think EFC request is similar to FCP request, like split transaction,
not unified transaction. But firewire-core handles response as unified
transaction.
> Link layer controllers which are *not* OHCI-1394 implementations may use
> one or the other 1212/ 1394 transaction type in either of the two
> transport protocols. Furthermore, OHCI-1394 also allows split transaction
> behavior to be configured for the range below 0xffff'0000'0000, but Linux'
> firewire-ohci and older Linux' ohci1394 configure unified transaction
> behavior, which is implemented by means of posted host bus writes by the
> OHCI. Lastly, some OHCI-1394 hardware allows addresses like the EFC range
> to be covered by the physical response unit, but neither firewire-ohci nor
> ohci1394 extend the OHCI physical response range over the EFC register
> range.
OK.
> Anyway; the use of split or unified transactions is immaterial to the
> question of exclusive use versus shared use of these address ranges by the
> application layer.
OK. But it's nice information to me. Thank you ;)
> IEEE 1212
> ---------
> Memory space,
> [0x0000'0000'0000...0xffff'e000'0000):
> "The name reflects a historical expectation that node resources
> located here exhibit behaviors usually associated with memory.
> That is, read and write transactions do not have side effects.
> In fact, any node resources may be located in this address space
> --- even registers with associated side effects."
>
> That is, EFC uses Memory space. (Particularly, it uses Memory space for
> two vendor-defined registers with write side effects.)
>
> Units space,
> [0xffff'f000'0800...0x1'0000'0000'0000):
> "Allocated for cooperative, shared definition by the applicable
> bus standard or the organizations or vendors responsible for unit
> architectures."
>
> That is, FCP uses Units space.
OK.
> According to this, we can do anything we want within the EFC address range
> (just take care that different applications do not confuse each other),
OK.
> From comments in your sources (added by patch 19/52 "fireworks: Add
> transaction and some commands"), I guess that bytes 1...4 in EFC response
> frames allow applications to match response frames with request frames.
> If so, the implementation could be organized similarly to FCP:
It's patch 25/52.
[alsa-devel] [PATCH 25/52] fireworks: Add command/response functionality
into hwdep interface.
http://mailman.alsa-project.org/pipermail/alsa-devel/2014-January/071845.html
3rd quadlet in EFC transaction frame is used for sequence number. When
devices receive command, they respond with sequence number increment by
1. And I confirm devices can correctly handle commands which don't has
continuous sequence number.
> firewire-core could allow multiple application programs (in kernelspace or
> in userspace) to register for listening at
> [0xecc0'8000'0000...0xecc0'8000'0200) and would give copies of all
> incoming EFC response frames to all listeners.
OK.
> It would then be the responsibility of the listeners to sort out which of
> the responses are theirs, and which to ignore. When implemented correctly
> in those applications, this matching of commands and responses would work
> with any number of controller applications and with any number of target
> devices on any number of 1394 buses attached to the host.
OK.
> However, there are some more considerations:
>
> - This perhaps requires that none of the EFC controllers tell the EFC
> target to use an EFC_RESPONSE address other than the default,
> 0xecc0'8000'0000.
I'm optimistic about this issue.
The way to change the address is just via EFC command, here is no other
ways. And I've already confirmed all of Fireworks models uses this
address as a default, with Echo Audio's resources.
Then usual users have no chance to change the address, no chance to face
changed address, unless they hope and work to do it.
> - How well do Fireworks devices deal with overlapping EFC transactions?
> In other words, may two or even more controller applications (e.g. one
> streaming driver in kernelspace and one mixer UI in userspace) operate
> independently, or do they have to coordinate certain actions?
Fireworks devices don't mind who sends commands.
They just receive commands and send responses against them with
incremented sequence number. So, like FCP applications, EFC applications
need to match their command and response by the sequnce number. When any
applications uses duplicated sequence number in command, matching may be
failed.
To prevent from this failure, hwdep functionality of snd-fireworks check
the sequence number field. If it's in the number for kernel-land, the
ioctl is failed. You can see the number in include/uapi/sound/firewire.h.
But users can send EFC command via firewire character devices. There is
no way to prohibit users to send command with number for kernel-land.
> - In firewire-core, we could hardwire shared use of
> [0xecc0'8000'0000...0xecc0'8000'0200) just like we hardwired shared
> use of FCP_COMMAND and FCP_RESPONSE. This assumes that no other
> application --- outside of Fireworks control applications --- attempts
> to use this address range.
>
> Or we could add an in-kernel API and kernel--userspace ABI which lets
> applications request shared listening to an address range (in contrast
> to the existing API/ ABI which lets applications register for
> exclusive listening to an address range).
>
> In the latter case, the userspace ABI could be either firewire-core's
> firewire-cdev interface, or it could be ALSA's hwdep interface.
>
> In the former case, firewire-cdev and/or hwdep could be used as well,
> although firewire-cdev would be the more natural choice.
I believe ioctl with FW_CDEV_IOC_ALLOCATE is better because it's simple.
I want to avoid big modification to firewire subsystem. This
functionality is just for a few devices (13 models).
> I understood from Clemens' comments that he intended that mixer
> applications should use hwdep only
> - to match ALSA hwdep nodes with firewire-cdev nodes,
> - to lock/ unlock streaming,
> - in the future: to receive certain status information from the ALSA
> driver if that status is only available as in-band data from the
> isochronous data stream, or if that status is nowhere available
> because it is implicit status of write-only registers,
> whereas the mixer applications are supposed to use firewire-cdev for all
> their other dealings with the audio devices. (Clemens and Jonathan,
> correct me if I misunderstood or if I forgot other control and status I/O
> that is only possible with direct cooperation by the ALSA driver.)
I don't know his future plan. But according to his advices, my current
work is to focus on streaming driver. Currently the functionality to
control device's internal mixer should be implemented in user-land
application, not in ALSA drivers.
Thanks
Takashi Sakamoto
o-takashi@sakamocchi.jp
^ permalink raw reply [flat|nested] 51+ messages in thread
* Re: Echo Fireworks control protocol (was Re: Sample program for hwdep interface)
2014-02-08 13:22 ` Takashi Sakamoto
@ 2014-02-09 11:42 ` Jonathan Woithe
2014-02-09 14:51 ` Stefan Richter
0 siblings, 1 reply; 51+ messages in thread
From: Jonathan Woithe @ 2014-02-09 11:42 UTC (permalink / raw)
To: Takashi Sakamoto
Cc: alsa-devel, jwoithe, Stefan Richter, ffado-devel, linux1394-devel
On Sat, Feb 08, 2014 at 10:22:40PM +0900, Takashi Sakamoto wrote:
> >I understood from Clemens' comments that ... the mixer applications are
> >supposed to use firewire-cdev for all their other dealings with the audio
> >devices. (Clemens and Jonathan, correct me if I misunderstood or if I
> >forgot other control and status I/O that is only possible with direct
> >cooperation by the ALSA driver.)
>
> I don't know his future plan. But according to his advices, my
> current work is to focus on streaming driver. Currently the
> functionality to control device's internal mixer should be
> implemented in user-land application, not in ALSA drivers.
As per an earlier followup, the current intention is indeed to keep the
mixer control in userspace.
jonathan
------------------------------------------------------------------------------
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Take advantage of what the Cloud has to offer - Avoid Common Pitfalls.
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^ permalink raw reply [flat|nested] 51+ messages in thread
* Re: Echo Fireworks control protocol (was Re: Sample program for hwdep interface)
2014-02-09 11:42 ` Jonathan Woithe
@ 2014-02-09 14:51 ` Stefan Richter
2014-02-09 16:53 ` Takashi Sakamoto
2014-02-09 22:29 ` Jonathan Woithe
0 siblings, 2 replies; 51+ messages in thread
From: Stefan Richter @ 2014-02-09 14:51 UTC (permalink / raw)
To: Jonathan Woithe; +Cc: alsa-devel, linux1394-devel, ffado-devel
On Feb 09 Jonathan Woithe wrote:
> On Sat, Feb 08, 2014 at 10:22:40PM +0900, Takashi Sakamoto wrote:
> > >I understood from Clemens' comments that ... the mixer applications are
> > >supposed to use firewire-cdev for all their other dealings with the audio
> > >devices. (Clemens and Jonathan, correct me if I misunderstood or if I
> > >forgot other control and status I/O that is only possible with direct
> > >cooperation by the ALSA driver.)
> >
> > I don't know his future plan. But according to his advices, my
> > current work is to focus on streaming driver. Currently the
> > functionality to control device's internal mixer should be
> > implemented in user-land application, not in ALSA drivers.
>
> As per an earlier followup, the current intention is indeed to keep the
> mixer control in userspace.
Sure, definitely; my point was that the kernel ABI which userspace mixer
applications are going to use could be
a) the ALSA hwdep interface, or
b) the ALSA hwdep interface together with firewire-core's firewire-cdev
interface,
but I understood that b) is the first choice. Specifically, provide in
ALSA hwdep only the absolutely necessary interfaces and do as much as
possible via firewire-cdev.
In contrast, it can't be firewire-cdev alone because of streaming on/off
state influences what can be controlled, and because some devices embed
status into the isochronous stream (MotU? RME?), and because some devices
(which ones?) may have write-only registers, of which both streaming
driver and mixer application want to know what is being written there.
Furthermore, it can't be a kernel interface like sysfs or configfs because
of the complexity and variety of control protocols of FireWire audio
devices.
--
Stefan Richter
-=====-====- --=- -=--=
http://arcgraph.de/sr/
------------------------------------------------------------------------------
Managing the Performance of Cloud-Based Applications
Take advantage of what the Cloud has to offer - Avoid Common Pitfalls.
Read the Whitepaper.
http://pubads.g.doubleclick.net/gampad/clk?id=121051231&iu=/4140/ostg.clktrk
^ permalink raw reply [flat|nested] 51+ messages in thread* Re: Echo Fireworks control protocol (was Re: Sample program for hwdep interface)
2014-02-09 14:51 ` Stefan Richter
@ 2014-02-09 16:53 ` Takashi Sakamoto
2014-02-09 22:29 ` Jonathan Woithe
1 sibling, 0 replies; 51+ messages in thread
From: Takashi Sakamoto @ 2014-02-09 16:53 UTC (permalink / raw)
To: Stefan Richter, Jonathan Woithe; +Cc: alsa-devel, linux1394-devel, ffado-devel
> Sure, definitely; my point was that the kernel ABI which userspace mixer
> applications are going to use could be
> a) the ALSA hwdep interface, or
> b) the ALSA hwdep interface together with firewire-core's firewire-cdev
> interface,
> but I understood that b) is the first choice. Specifically, provide in
> ALSA hwdep only the absolutely necessary interfaces and do as much as
> possible via firewire-cdev.
Exactly.
> and because some devices (which ones?) may have write-only registers,
> of which both streaming driver and mixer application want to know
> what is being written there.
For this purpose, ALSA Control interface can also be used. One example
is M-Audio 'Firewire 1814', see:
[PATCH 52/52] bebob: Add support for M-Audio special Firewire series
http://mailman.alsa-project.org/pipermail/alsa-devel/2014-January/071873.html
And See:
[alsa-devel] include/uapi/firewire.h for other firewire drivers
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-November/068069.html
(This device has another bit issue but here I don't mention about it.)
> Furthermore, it can't be a kernel interface like sysfs or configfs
> because of the complexity and variety of control protocols of FireWire
> audio devices.
Indeed.
Takashi Sakamoto
o-takashi@sakamocchi.jp
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^ permalink raw reply [flat|nested] 51+ messages in thread
* Re: Echo Fireworks control protocol (was Re: Sample program for hwdep interface)
2014-02-09 14:51 ` Stefan Richter
2014-02-09 16:53 ` Takashi Sakamoto
@ 2014-02-09 22:29 ` Jonathan Woithe
1 sibling, 0 replies; 51+ messages in thread
From: Jonathan Woithe @ 2014-02-09 22:29 UTC (permalink / raw)
To: Stefan Richter; +Cc: alsa-devel, jwoithe, ffado-devel, linux1394-devel
On Sun, Feb 09, 2014 at 03:51:45PM +0100, Stefan Richter wrote:
> Sure, definitely; my point was that the kernel ABI which userspace mixer
> applications are going to use could be
> a) the ALSA hwdep interface, or
> b) the ALSA hwdep interface together with firewire-core's firewire-cdev
> interface,
> but I understood that b) is the first choice. Specifically, provide in
> ALSA hwdep only the absolutely necessary interfaces and do as much as
> possible via firewire-cdev.
Agreed.
> In contrast, it can't be firewire-cdev alone because of streaming on/off
> state influences what can be controlled, and because some devices embed
> status into the isochronous stream (MotU? RME?) ...
MOTU to a certain extent (although we don't make direct use of that at this
point because the information is quite low level and isn't required to use
the device successfully). Hardware meter values (which don't really
constitute status data) are sent by the RMEs as part of the iso stream but
again we're not making use of that yet either.
> ... and because some devices (which ones?) may have write-only registers,
> of which both streaming driver and mixer application want to know what is
> being written there.
RME is the primary example in this case.
> Furthermore, it can't be a kernel interface like sysfs or configfs because
> of the complexity and variety of control protocols of FireWire audio
> devices.
At this stage I don't believe a universal interface is possible because I
expect this will end up being a case of chasing one's tail (a list of basic
conventions will be fine though). As you know, the physical features and
setup of each interface family can be very different and trying to come up
with a single interface which works across devices will be the stuff of
nightmares. For example, some things needed by one interface may be of no
concern at all to others. I imagine the device-specific userspace mixer
panels which need to will access their relevant kernel interface.
Consequently, for the relatively small number of interface models which are
affected, an interface for each device through sysfs or configfs might work.
Mixer and control for most devices will work fine with just the basic list
of information which can be made available via hwdep. The most important
one of these is the streaming status, but it could be useful to include a
small number of other things which are common to all devices, such as sample
rate.
Regards
jonathan
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