* [PATCH 1/2] ALSA: scarlett2: Split scarlett2_config_items[] into 3 sections
2022-03-06 15:20 [PATCH 0/2] ALSA: scarlett2: Add "Standalone" switch Geoffrey D. Bennett
@ 2022-03-06 15:21 ` Geoffrey D. Bennett
2022-03-06 15:21 ` [PATCH 2/2] ALSA: scarlett2: Add support for the internal "standalone" switch Geoffrey D. Bennett
2022-03-08 9:06 ` [PATCH 0/2] ALSA: scarlett2: Add "Standalone" switch Takashi Iwai
2 siblings, 0 replies; 4+ messages in thread
From: Geoffrey D. Bennett @ 2022-03-06 15:21 UTC (permalink / raw)
To: alsa-devel, Takashi Iwai; +Cc: Hin-Tak Leung, Vladimir Sadovnikov
scarlett2_config_items[] contains the parameters for the configuration
items. The driver previously had two sets of configurations items; one
for devices with no mixer, and one for devices with a mixer. This
patch splits the latter into two (one set for Gen 2 devices and one
set for Gen 3 devices) in preparation for a new item (standalone)
which is present in both but with a different offset.
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
---
sound/usb/mixer_scarlett_gen2.c | 74 +++++++++++++++++++++++----------
1 file changed, 51 insertions(+), 23 deletions(-)
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index 53ebabf42472..22e442208550 100644
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -6,7 +6,7 @@
* - 6i6/18i8/18i20 Gen 2
* - Solo/2i2/4i4/8i6/18i8/18i20 Gen 3
*
- * Copyright (c) 2018-2021 by Geoffrey D. Bennett <g at b4.vu>
+ * Copyright (c) 2018-2022 by Geoffrey D. Bennett <g at b4.vu>
* Copyright (c) 2020-2021 by Vladimir Sadovnikov <sadko4u@gmail.com>
*
* Based on the Scarlett (Gen 1) Driver for ALSA:
@@ -195,6 +195,16 @@ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = {
/* Maximum number of meters (sum of output port counts) */
#define SCARLETT2_MAX_METERS 65
+/* There are three different sets of configuration parameters across
+ * the devices
+ */
+enum {
+ SCARLETT2_CONFIG_SET_NO_MIXER = 0,
+ SCARLETT2_CONFIG_SET_GEN_2 = 1,
+ SCARLETT2_CONFIG_SET_GEN_3 = 2,
+ SCARLETT2_CONFIG_SET_COUNT = 3
+};
+
/* Hardware port types:
* - None (no input to mux)
* - Analogue I/O
@@ -308,10 +318,8 @@ struct scarlett2_device_info {
*/
u8 has_msd_mode;
- /* Gen 3 devices without a mixer have a different
- * configuration set
- */
- u8 has_mixer;
+ /* which set of configuration parameters the device uses */
+ u8 config_set;
/* line out hw volume is sw controlled */
u8 line_out_hw_vol;
@@ -426,7 +434,7 @@ struct scarlett2_data {
static const struct scarlett2_device_info s6i6_gen2_info = {
.usb_id = USB_ID(0x1235, 0x8203),
- .has_mixer = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_2,
.level_input_count = 2,
.pad_input_count = 2,
@@ -472,7 +480,7 @@ static const struct scarlett2_device_info s6i6_gen2_info = {
static const struct scarlett2_device_info s18i8_gen2_info = {
.usb_id = USB_ID(0x1235, 0x8204),
- .has_mixer = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_2,
.level_input_count = 2,
.pad_input_count = 4,
@@ -521,7 +529,7 @@ static const struct scarlett2_device_info s18i8_gen2_info = {
static const struct scarlett2_device_info s18i20_gen2_info = {
.usb_id = USB_ID(0x1235, 0x8201),
- .has_mixer = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_2,
.line_out_hw_vol = 1,
.line_out_descrs = {
@@ -576,6 +584,7 @@ static const struct scarlett2_device_info solo_gen3_info = {
.usb_id = USB_ID(0x1235, 0x8211),
.has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_NO_MIXER,
.level_input_count = 1,
.level_input_first = 1,
.air_input_count = 1,
@@ -588,6 +597,7 @@ static const struct scarlett2_device_info s2i2_gen3_info = {
.usb_id = USB_ID(0x1235, 0x8210),
.has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_NO_MIXER,
.level_input_count = 2,
.air_input_count = 2,
.phantom_count = 1,
@@ -599,7 +609,7 @@ static const struct scarlett2_device_info s4i4_gen3_info = {
.usb_id = USB_ID(0x1235, 0x8212),
.has_msd_mode = 1,
- .has_mixer = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3,
.level_input_count = 2,
.pad_input_count = 2,
.air_input_count = 2,
@@ -645,7 +655,7 @@ static const struct scarlett2_device_info s8i6_gen3_info = {
.usb_id = USB_ID(0x1235, 0x8213),
.has_msd_mode = 1,
- .has_mixer = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3,
.level_input_count = 2,
.pad_input_count = 2,
.air_input_count = 2,
@@ -698,7 +708,7 @@ static const struct scarlett2_device_info s18i8_gen3_info = {
.usb_id = USB_ID(0x1235, 0x8214),
.has_msd_mode = 1,
- .has_mixer = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3,
.line_out_hw_vol = 1,
.has_speaker_switching = 1,
.level_input_count = 2,
@@ -768,7 +778,7 @@ static const struct scarlett2_device_info s18i20_gen3_info = {
.usb_id = USB_ID(0x1235, 0x8215),
.has_msd_mode = 1,
- .has_mixer = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3,
.line_out_hw_vol = 1,
.has_speaker_switching = 1,
.has_talkback = 1,
@@ -944,13 +954,11 @@ struct scarlett2_config {
u8 activate;
};
-/* scarlett2_config_items[0] is for devices without a mixer
- * scarlett2_config_items[1] is for devices with a mixer
- */
static const struct scarlett2_config
- scarlett2_config_items[2][SCARLETT2_CONFIG_COUNT] =
+ scarlett2_config_items[SCARLETT2_CONFIG_SET_COUNT]
+ [SCARLETT2_CONFIG_COUNT] =
-/* Devices without a mixer (Solo and 2i2 Gen 3) */
+/* Devices without a mixer (Gen 3 Solo and 2i2) */
{ {
[SCARLETT2_CONFIG_MSD_SWITCH] = {
.offset = 0x04, .size = 8, .activate = 6 },
@@ -970,7 +978,27 @@ static const struct scarlett2_config
[SCARLETT2_CONFIG_AIR_SWITCH] = {
.offset = 0x09, .size = 1, .activate = 8 },
-/* Devices with a mixer (Gen 2 and all other Gen 3) */
+/* Gen 2 devices: 6i6, 18i8, 18i20 */
+}, {
+ [SCARLETT2_CONFIG_DIM_MUTE] = {
+ .offset = 0x31, .size = 8, .activate = 2 },
+
+ [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
+ .offset = 0x34, .size = 16, .activate = 1 },
+
+ [SCARLETT2_CONFIG_MUTE_SWITCH] = {
+ .offset = 0x5c, .size = 8, .activate = 1 },
+
+ [SCARLETT2_CONFIG_SW_HW_SWITCH] = {
+ .offset = 0x66, .size = 8, .activate = 3 },
+
+ [SCARLETT2_CONFIG_LEVEL_SWITCH] = {
+ .offset = 0x7c, .size = 8, .activate = 7 },
+
+ [SCARLETT2_CONFIG_PAD_SWITCH] = {
+ .offset = 0x84, .size = 8, .activate = 8 },
+
+/* Gen 3 devices: 4i4, 8i6, 18i8, 18i20 */
}, {
[SCARLETT2_CONFIG_DIM_MUTE] = {
.offset = 0x31, .size = 8, .activate = 2 },
@@ -1175,7 +1203,7 @@ static int scarlett2_usb_get_config(
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
const struct scarlett2_config *config_item =
- &scarlett2_config_items[info->has_mixer][config_item_num];
+ &scarlett2_config_items[info->config_set][config_item_num];
int size, err, i;
u8 *buf_8;
u8 value;
@@ -1235,7 +1263,7 @@ static int scarlett2_usb_set_config(
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
const struct scarlett2_config *config_item =
- &scarlett2_config_items[info->has_mixer][config_item_num];
+ &scarlett2_config_items[info->config_set][config_item_num];
struct {
__le32 offset;
__le32 bytes;
@@ -1692,7 +1720,7 @@ static int scarlett2_add_sync_ctl(struct usb_mixer_interface *mixer)
struct scarlett2_data *private = mixer->private_data;
/* devices without a mixer also don't support reporting sync status */
- if (!private->info->has_mixer)
+ if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
return 0;
return scarlett2_add_new_ctl(mixer, &scarlett2_sync_ctl,
@@ -3399,7 +3427,7 @@ static int scarlett2_add_meter_ctl(struct usb_mixer_interface *mixer)
struct scarlett2_data *private = mixer->private_data;
/* devices without a mixer also don't support reporting levels */
- if (!private->info->has_mixer)
+ if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
return 0;
return scarlett2_add_new_ctl(mixer, &scarlett2_meter_ctl,
@@ -3632,7 +3660,7 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
return err;
/* the rest of the configuration is for devices with a mixer */
- if (!info->has_mixer)
+ if (info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
return 0;
err = scarlett2_update_sync(mixer);
--
2.35.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/2] ALSA: scarlett2: Add support for the internal "standalone" switch
2022-03-06 15:20 [PATCH 0/2] ALSA: scarlett2: Add "Standalone" switch Geoffrey D. Bennett
2022-03-06 15:21 ` [PATCH 1/2] ALSA: scarlett2: Split scarlett2_config_items[] into 3 sections Geoffrey D. Bennett
@ 2022-03-06 15:21 ` Geoffrey D. Bennett
2022-03-08 9:06 ` [PATCH 0/2] ALSA: scarlett2: Add "Standalone" switch Takashi Iwai
2 siblings, 0 replies; 4+ messages in thread
From: Geoffrey D. Bennett @ 2022-03-06 15:21 UTC (permalink / raw)
To: alsa-devel, Takashi Iwai; +Cc: Hin-Tak Leung, Vladimir Sadovnikov
The Focusrite Scarlett Gen 2/3 interfaces with internal mixers have a
"standalone" mode. When the interface is not connected to a USB host
and standalone mode is enabled, the interface will pass audio as
previously configured. This patch adds an ALSA control to allow
enabling/disabling that mode.
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
---
sound/usb/mixer_scarlett_gen2.c | 97 ++++++++++++++++++++++++++++++---
1 file changed, 90 insertions(+), 7 deletions(-)
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index 22e442208550..710586c8dedc 100644
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -60,6 +60,7 @@
* - phantom power, direct monitor, speaker switching, and talkback
* controls
* - disable/enable MSD mode
+ * - disable/enable standalone mode
*
* <ditaa>
* /--------------\ 18chn 20chn /--------------\
@@ -411,6 +412,7 @@ struct scarlett2_data {
u8 talkback_switch;
u8 talkback_map[SCARLETT2_OUTPUT_MIX_MAX];
u8 msd_switch;
+ u8 standalone_switch;
struct snd_kcontrol *sync_ctl;
struct snd_kcontrol *master_vol_ctl;
struct snd_kcontrol *vol_ctls[SCARLETT2_ANALOGUE_MAX];
@@ -936,13 +938,14 @@ enum {
SCARLETT2_CONFIG_PAD_SWITCH = 5,
SCARLETT2_CONFIG_MSD_SWITCH = 6,
SCARLETT2_CONFIG_AIR_SWITCH = 7,
- SCARLETT2_CONFIG_PHANTOM_SWITCH = 8,
- SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 9,
- SCARLETT2_CONFIG_DIRECT_MONITOR = 10,
- SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH = 11,
- SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE = 12,
- SCARLETT2_CONFIG_TALKBACK_MAP = 13,
- SCARLETT2_CONFIG_COUNT = 14
+ SCARLETT2_CONFIG_STANDALONE_SWITCH = 8,
+ SCARLETT2_CONFIG_PHANTOM_SWITCH = 9,
+ SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 10,
+ SCARLETT2_CONFIG_DIRECT_MONITOR = 11,
+ SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH = 12,
+ SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE = 13,
+ SCARLETT2_CONFIG_TALKBACK_MAP = 14,
+ SCARLETT2_CONFIG_COUNT = 15
};
/* Location, size, and activation command number for the configuration
@@ -998,6 +1001,9 @@ static const struct scarlett2_config
[SCARLETT2_CONFIG_PAD_SWITCH] = {
.offset = 0x84, .size = 8, .activate = 8 },
+ [SCARLETT2_CONFIG_STANDALONE_SWITCH] = {
+ .offset = 0x8d, .size = 8, .activate = 6 },
+
/* Gen 3 devices: 4i4, 8i6, 18i8, 18i20 */
}, {
[SCARLETT2_CONFIG_DIM_MUTE] = {
@@ -1021,6 +1027,9 @@ static const struct scarlett2_config
[SCARLETT2_CONFIG_AIR_SWITCH] = {
.offset = 0x8c, .size = 8, .activate = 8 },
+ [SCARLETT2_CONFIG_STANDALONE_SWITCH] = {
+ .offset = 0x95, .size = 8, .activate = 6 },
+
[SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
.offset = 0x9c, .size = 1, .activate = 8 },
@@ -3502,6 +3511,69 @@ static int scarlett2_add_msd_ctl(struct usb_mixer_interface *mixer)
0, 1, "MSD Mode Switch", NULL);
}
+/*** Standalone Control ***/
+
+static int scarlett2_standalone_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+
+ ucontrol->value.integer.value[0] = private->standalone_switch;
+ return 0;
+}
+
+static int scarlett2_standalone_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->standalone_switch;
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->standalone_switch = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer,
+ SCARLETT2_CONFIG_STANDALONE_SWITCH,
+ 0, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_standalone_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_standalone_ctl_get,
+ .put = scarlett2_standalone_ctl_put,
+};
+
+static int scarlett2_add_standalone_ctl(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
+ return 0;
+
+ /* Add standalone control */
+ return scarlett2_add_new_ctl(mixer, &scarlett2_standalone_ctl,
+ 0, 1, "Standalone Switch", NULL);
+}
+
/*** Cleanup/Suspend Callbacks ***/
static void scarlett2_private_free(struct usb_mixer_interface *mixer)
@@ -3663,6 +3735,12 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
if (info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
return 0;
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_STANDALONE_SWITCH,
+ 1, &private->standalone_switch);
+ if (err < 0)
+ return err;
+
err = scarlett2_update_sync(mixer);
if (err < 0)
return err;
@@ -3985,6 +4063,11 @@ static int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer)
if (err < 0)
return err;
+ /* Create the standalone control */
+ err = scarlett2_add_standalone_ctl(mixer);
+ if (err < 0)
+ return err;
+
/* Set up the interrupt polling */
err = scarlett2_init_notify(mixer);
if (err < 0)
--
2.35.1
^ permalink raw reply related [flat|nested] 4+ messages in thread