[PATCH v3 00/11] ALSA: oxfw: code refactoring for quirks specific to ASICs

[PATCH v3 00/11] ALSA: oxfw: code refactoring for quirks specific to ASICs

[Takashi Sakamoto]

Hi,

This patchset is revised version of my take 2:
 * https://lore.kernel.org/alsa-devel/20210515071112.101535-1-o-takashi@sakamocchi.jp/

Changes from v2:
 * use int type instead of enumerated type for combination of
   enumeration-constants
 * fix semi-colon typo in subject line of 10th patch

Regards

Takashi Sakamoto (11):
  Revert "ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro"
  ALSA: firewire-lib/motu: use int type for the value of bitwise OR with
    enumerator-constant
  ALSA: oxfw: code refactoring for existent device entry with
    specifier_id and version
  ALSA: oxfw: code refactoring to detect mackie models
  ALSA: oxfw: add explicit device entry for Loud Technologies Tapco
    Link.FireWire 4x6
  ALSA: oxfw: add explicit device entry for Loud Technologies Mackie
    Onyx Sattelite
  ALSA: oxfw: add comment for the type of ASICs
  ALSA: oxfw: code refactoring for jumbo-payload quirk in OXFW970
  ALSA: firewire-lib: code refactoring for jumbo payload quirk
  ALSA: oxfw: code refactoring for wrong_dbs quirk
  ALSA: oxfw: add quirk flag for blocking transmission method

 sound/firewire/Kconfig             |   4 +-
 sound/firewire/amdtp-am824.c       |   4 +-
 sound/firewire/amdtp-am824.h       |   2 +-
 sound/firewire/amdtp-stream.c      |  11 ++-
 sound/firewire/amdtp-stream.h      |   5 +-
 sound/firewire/bebob/bebob.c       |   2 +-
 sound/firewire/digi00x/amdtp-dot.c |   2 +-
 sound/firewire/motu/motu.h         |   3 +-
 sound/firewire/oxfw/oxfw-stream.c  |  25 +++---
 sound/firewire/oxfw/oxfw.c         | 137 ++++++++++++++---------------
 sound/firewire/oxfw/oxfw.h         |  13 ++-
 11 files changed, 110 insertions(+), 98 deletions(-)

-- 
2.27.0

[PATCH v3 01/11] Revert "ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro"

[Takashi Sakamoto]

This reverts commit 0edabdfe89581669609eaac5f6a8d0ae6fe95e7f.

I've explained that optional FireWire card for d.2 is also built-in to
d.2 Pro, however it's wrong. The optional card uses DM1000 ASIC and has
'Mackie DJ Mixer' in its model name of configuration ROM. On the other
hand, built-in FireWire card for d.2 Pro and d.4 Pro uses OXFW971 ASIC
and has 'd.Pro' in its model name according to manuals and user
experiences. The former card is not the card for d.2 Pro. They are similar
in appearance but different internally.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/Kconfig       | 4 ++--
 sound/firewire/bebob/bebob.c | 2 +-
 sound/firewire/oxfw/oxfw.c   | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 9897bd26a438..def1f3d5ecf5 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -38,7 +38,7 @@ config SND_OXFW
 	   * Mackie(Loud) Onyx 1640i (former model)
 	   * Mackie(Loud) Onyx Satellite
 	   * Mackie(Loud) Tapco Link.Firewire
-	   * Mackie(Loud) d.4 pro
+	   * Mackie(Loud) d.2 pro/d.4 pro (built-in FireWire card with OXFW971 ASIC)
 	   * Mackie(Loud) U.420/U.420d
 	   * TASCAM FireOne
 	   * Stanton Controllers & Systems 1 Deck/Mixer
@@ -84,7 +84,7 @@ config SND_BEBOB
 	  * PreSonus FIREBOX/FIREPOD/FP10/Inspire1394
 	  * BridgeCo RDAudio1/Audio5
 	  * Mackie Onyx 1220/1620/1640 (FireWire I/O Card)
-	  * Mackie d.2 (FireWire Option) and d.2 Pro
+	  * Mackie d.2 (optional FireWire card with DM1000 ASIC)
 	  * Stanton FinalScratch 2 (ScratchAmp)
 	  * Tascam IF-FW/DM
 	  * Behringer XENIX UFX 1204/1604
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index daeecfa8b9aa..90e98a6d1546 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -387,7 +387,7 @@ static const struct ieee1394_device_id bebob_id_table[] = {
 	SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010049, &spec_normal),
 	/* Mackie, Onyx 1220/1620/1640 (Firewire I/O Card) */
 	SND_BEBOB_DEV_ENTRY(VEN_MACKIE2, 0x00010065, &spec_normal),
-	// Mackie, d.2 (Firewire option card) and d.2 Pro (the card is built-in).
+	// Mackie, d.2 (optional Firewire card with DM1000).
 	SND_BEBOB_DEV_ENTRY(VEN_MACKIE1, 0x00010067, &spec_normal),
 	/* Stanton, ScratchAmp */
 	SND_BEBOB_DEV_ENTRY(VEN_STANTON, 0x00000001, &spec_normal),
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 9eea25c46dc7..5490637d278a 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -355,7 +355,7 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 	 *  Onyx-i series (former models):	0x081216
 	 *  Mackie Onyx Satellite:		0x00200f
 	 *  Tapco LINK.firewire 4x6:		0x000460
-	 *  d.4 pro:				Unknown
+	 *  d.2 pro/d.4 pro (built-in card):	Unknown
 	 *  U.420:				Unknown
 	 *  U.420d:				Unknown
 	 */
-- 
2.27.0

[PATCH v3 02/11] ALSA: firewire-lib/motu: use int type for the value of bitwise OR with enumerator-constant

[Takashi Sakamoto]

It brings some inconvenience in practice to use enumerated type for
variable to which bitwise OR with enumerator constant is assigned.

This commit replaces declarations of enumerated type with int type.

Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/amdtp-am824.c       | 4 ++--
 sound/firewire/amdtp-am824.h       | 2 +-
 sound/firewire/amdtp-stream.c      | 4 ++--
 sound/firewire/amdtp-stream.h      | 5 +++--
 sound/firewire/digi00x/amdtp-dot.c | 2 +-
 sound/firewire/motu/motu.h         | 3 ++-
 6 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/sound/firewire/amdtp-am824.c b/sound/firewire/amdtp-am824.c
index fea92e148790..9662a3ba9139 100644
--- a/sound/firewire/amdtp-am824.c
+++ b/sound/firewire/amdtp-am824.c
@@ -410,10 +410,10 @@ static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
  * @s: the AMDTP stream to initialize
  * @unit: the target of the stream
  * @dir: the direction of stream
- * @flags: the packet transmission method to use
+ * @flags: the details of the streaming protocol consist of cip_flags enumeration-constants.
  */
 int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit,
-		     enum amdtp_stream_direction dir, enum cip_flags flags)
+		     enum amdtp_stream_direction dir, int flags)
 {
 	amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
 
diff --git a/sound/firewire/amdtp-am824.h b/sound/firewire/amdtp-am824.h
index 06d280783581..fe6652bde4a5 100644
--- a/sound/firewire/amdtp-am824.h
+++ b/sound/firewire/amdtp-am824.h
@@ -45,5 +45,5 @@ void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port,
 			      struct snd_rawmidi_substream *midi);
 
 int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit,
-		     enum amdtp_stream_direction dir, enum cip_flags flags);
+		     enum amdtp_stream_direction dir, int flags);
 #endif
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index e0faa6601966..094c9b2d772f 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -71,13 +71,13 @@ static void pcm_period_work(struct work_struct *work);
  * @s: the AMDTP stream to initialize
  * @unit: the target of the stream
  * @dir: the direction of stream
- * @flags: the packet transmission method to use
+ * @flags: the details of the streaming protocol consist of cip_flags enumeration-constants.
  * @fmt: the value of fmt field in CIP header
  * @process_ctx_payloads: callback handler to process payloads of isoc context
  * @protocol_size: the size to allocate newly for protocol
  */
 int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
-		      enum amdtp_stream_direction dir, enum cip_flags flags,
+		      enum amdtp_stream_direction dir, int flags,
 		      unsigned int fmt,
 		      amdtp_stream_process_ctx_payloads_t process_ctx_payloads,
 		      unsigned int protocol_size)
diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h
index a3daa1f2c1c4..1f294df1d64f 100644
--- a/sound/firewire/amdtp-stream.h
+++ b/sound/firewire/amdtp-stream.h
@@ -112,7 +112,8 @@ typedef unsigned int (*amdtp_stream_process_ctx_payloads_t)(
 struct amdtp_domain;
 struct amdtp_stream {
 	struct fw_unit *unit;
-	enum cip_flags flags;
+	// The combination of cip_flags enumeration-constants.
+	int flags;
 	enum amdtp_stream_direction direction;
 	struct mutex mutex;
 
@@ -184,7 +185,7 @@ struct amdtp_stream {
 };
 
 int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
-		      enum amdtp_stream_direction dir, enum cip_flags flags,
+		      enum amdtp_stream_direction dir, int flags,
 		      unsigned int fmt,
 		      amdtp_stream_process_ctx_payloads_t process_ctx_payloads,
 		      unsigned int protocol_size);
diff --git a/sound/firewire/digi00x/amdtp-dot.c b/sound/firewire/digi00x/amdtp-dot.c
index d613642a2ce3..a47d9800e0d6 100644
--- a/sound/firewire/digi00x/amdtp-dot.c
+++ b/sound/firewire/digi00x/amdtp-dot.c
@@ -396,7 +396,7 @@ int amdtp_dot_init(struct amdtp_stream *s, struct fw_unit *unit,
 		 enum amdtp_stream_direction dir)
 {
 	amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
-	enum cip_flags flags;
+	int flags;
 
 	// Use different mode between incoming/outgoing.
 	if (dir == AMDTP_IN_STREAM) {
diff --git a/sound/firewire/motu/motu.h b/sound/firewire/motu/motu.h
index 3d0236ee6716..c0de2720aeac 100644
--- a/sound/firewire/motu/motu.h
+++ b/sound/firewire/motu/motu.h
@@ -106,7 +106,8 @@ enum snd_motu_protocol_version {
 struct snd_motu_spec {
 	const char *const name;
 	enum snd_motu_protocol_version protocol_version;
-	enum snd_motu_spec_flags flags;
+	// The combination of snd_motu_spec_flags enumeration-constants.
+	int flags;
 
 	unsigned char tx_fixed_pcm_chunks[3];
 	unsigned char rx_fixed_pcm_chunks[3];
-- 
2.27.0

Re: [PATCH v3 02/11] ALSA: firewire-lib/motu: use int type for the value of bitwise OR with enumerator-constant

[Takashi Iwai]

On Tue, 18 May 2021 04:43:17 +0200,
Takashi Sakamoto wrote:
> 
> It brings some inconvenience in practice to use enumerated type for
> variable to which bitwise OR with enumerator constant is assigned.
> 
> This commit replaces declarations of enumerated type with int type.

Better to use unsigned int for bit flags.  Otherwise the highest bit
becomes harder to use.


thanks,

Takashi

Re: [PATCH v3 02/11] ALSA: firewire-lib/motu: use int type for the value of bitwise OR with enumerator-constant

[Takashi Sakamoto]

On Tue, May 18, 2021 at 09:02:54AM +0200, Takashi Iwai wrote:
> On Tue, 18 May 2021 04:43:17 +0200,
> Takashi Sakamoto wrote:
> > 
> > It brings some inconvenience in practice to use enumerated type for
> > variable to which bitwise OR with enumerator constant is assigned.
> > 
> > This commit replaces declarations of enumerated type with int type.
> 
> Better to use unsigned int for bit flags.  Otherwise the highest bit
> becomes harder to use.

I can't imagine such situation that the signed value causes issue. Would
I request actual example with such issue? At least, the highest bit is
still available as bit even if the value is negative by assigning
0x80000000...


Regards

Takashi Sakamoto

Re: [PATCH v3 02/11] ALSA: firewire-lib/motu: use int type for the value of bitwise OR with enumerator-constant

[Takashi Iwai]

On Tue, 18 May 2021 10:13:34 +0200,
Takashi Sakamoto wrote:
> 
> On Tue, May 18, 2021 at 09:02:54AM +0200, Takashi Iwai wrote:
> > On Tue, 18 May 2021 04:43:17 +0200,
> > Takashi Sakamoto wrote:
> > > 
> > > It brings some inconvenience in practice to use enumerated type for
> > > variable to which bitwise OR with enumerator constant is assigned.
> > > 
> > > This commit replaces declarations of enumerated type with int type.
> > 
> > Better to use unsigned int for bit flags.  Otherwise the highest bit
> > becomes harder to use.
> 
> I can't imagine such situation that the signed value causes issue. Would
> I request actual example with such issue? At least, the highest bit is
> still available as bit even if the value is negative by assigning
> 0x80000000...

It's available in signed int, but this is inconvenient, e.g. if you
shift the bit.  Maybe I forgot something else, too.

You may still use signed int if you are sure that you'll never reach
to the highest number, but other than that, using unsigned for bit
flags is a *VERY* common practice in the kernel programming, so there
is no reason to ignore it.


Takashi

Re: [PATCH v3 02/11] ALSA: firewire-lib/motu: use int type for the value of bitwise OR with enumerator-constant

[Takashi Sakamoto]

On Tue, May 18, 2021 at 10:23:30AM +0200, Takashi Iwai wrote:
> On Tue, 18 May 2021 10:13:34 +0200,
> Takashi Sakamoto wrote:
> > 
> > On Tue, May 18, 2021 at 09:02:54AM +0200, Takashi Iwai wrote:
> > > On Tue, 18 May 2021 04:43:17 +0200,
> > > Takashi Sakamoto wrote:
> > > > 
> > > > It brings some inconvenience in practice to use enumerated type for
> > > > variable to which bitwise OR with enumerator constant is assigned.
> > > > 
> > > > This commit replaces declarations of enumerated type with int type.
> > > 
> > > Better to use unsigned int for bit flags.  Otherwise the highest bit
> > > becomes harder to use.
> > 
> > I can't imagine such situation that the signed value causes issue. Would
> > I request actual example with such issue? At least, the highest bit is
> > still available as bit even if the value is negative by assigning
> > 0x80000000...
> 
> It's available in signed int, but this is inconvenient, e.g. if you
> shift the bit.  Maybe I forgot something else, too.
> 
> You may still use signed int if you are sure that you'll never reach
> to the highest number, but other than that, using unsigned for bit
> flags is a *VERY* common practice in the kernel programming, so there
> is no reason to ignore it.

Ok. I just follow to the convention under the Linux kernel development.


Thanks

Takashi Sakamoto

[PATCH v3 03/11] ALSA: oxfw: code refactoring for existent device entry with specifier_id and version

[Takashi Sakamoto]

All of the devices known to be based on OXFW ASICs have the same layout
of configuration ROM, in which unit directory includes vendor, model,
specifier_id and version immediate values. Especially, the pair of
specifier_id and version is fixed to represent AV/C general protocol.

This commit refactors device entries to fulfil with these 4 elements.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw.c | 82 ++++++++++++--------------------------
 1 file changed, 25 insertions(+), 57 deletions(-)

diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 5490637d278a..7be999c61730 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -320,36 +320,24 @@ static const struct compat_info lacie_speakers = {
 	.model_name = "FireWire Speakers",
 };
 
+#define OXFW_DEV_ENTRY(vendor, model, data) \
+{ \
+	.match_flags  = IEEE1394_MATCH_VENDOR_ID | \
+			IEEE1394_MATCH_MODEL_ID | \
+			IEEE1394_MATCH_SPECIFIER_ID | \
+			IEEE1394_MATCH_VERSION, \
+	.vendor_id    = vendor, \
+	.model_id     = model, \
+	.specifier_id = SPECIFIER_1394TA, \
+	.version      = VERSION_AVC, \
+	.driver_data  = (kernel_ulong_t)data, \
+}
+
 static const struct ieee1394_device_id oxfw_id_table[] = {
-	{
-		.match_flags  = IEEE1394_MATCH_VENDOR_ID |
-				IEEE1394_MATCH_MODEL_ID |
-				IEEE1394_MATCH_SPECIFIER_ID |
-				IEEE1394_MATCH_VERSION,
-		.vendor_id    = VENDOR_GRIFFIN,
-		.model_id     = 0x00f970,
-		.specifier_id = SPECIFIER_1394TA,
-		.version      = VERSION_AVC,
-		.driver_data  = (kernel_ulong_t)&griffin_firewave,
-	},
-	{
-		.match_flags  = IEEE1394_MATCH_VENDOR_ID |
-				IEEE1394_MATCH_MODEL_ID |
-				IEEE1394_MATCH_SPECIFIER_ID |
-				IEEE1394_MATCH_VERSION,
-		.vendor_id    = VENDOR_LACIE,
-		.model_id     = 0x00f970,
-		.specifier_id = SPECIFIER_1394TA,
-		.version      = VERSION_AVC,
-		.driver_data  = (kernel_ulong_t)&lacie_speakers,
-	},
-	/* Behringer,F-Control Audio 202 */
-	{
-		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
-				  IEEE1394_MATCH_MODEL_ID,
-		.vendor_id	= VENDOR_BEHRINGER,
-		.model_id	= 0x00fc22,
-	},
+	OXFW_DEV_ENTRY(VENDOR_GRIFFIN, 0x00f970, &griffin_firewave),
+	OXFW_DEV_ENTRY(VENDOR_LACIE, 0x00f970, &lacie_speakers),
+	// Behringer,F-Control Audio 202.
+	OXFW_DEV_ENTRY(VENDOR_BEHRINGER, 0x00fc22, NULL),
 	/*
 	 * Any Mackie(Loud) models (name string/model id):
 	 *  Onyx-i series (former models):	0x081216
@@ -367,34 +355,14 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 		.specifier_id	= SPECIFIER_1394TA,
 		.version	= VERSION_AVC,
 	},
-	/* TASCAM, FireOne */
-	{
-		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
-				  IEEE1394_MATCH_MODEL_ID,
-		.vendor_id	= VENDOR_TASCAM,
-		.model_id	= 0x800007,
-	},
-	/* Stanton, Stanton Controllers & Systems 1 Mixer (SCS.1m) */
-	{
-		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
-				  IEEE1394_MATCH_MODEL_ID,
-		.vendor_id	= OUI_STANTON,
-		.model_id	= 0x001000,
-	},
-	/* Stanton, Stanton Controllers & Systems 1 Deck (SCS.1d) */
-	{
-		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
-				  IEEE1394_MATCH_MODEL_ID,
-		.vendor_id	= OUI_STANTON,
-		.model_id	= 0x002000,
-	},
-	// APOGEE, duet FireWire
-	{
-		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
-				  IEEE1394_MATCH_MODEL_ID,
-		.vendor_id	= OUI_APOGEE,
-		.model_id	= 0x01dddd,
-	},
+	// TASCAM, FireOne.
+	OXFW_DEV_ENTRY(VENDOR_TASCAM, 0x800007, NULL),
+	// Stanton, Stanton Controllers & Systems 1 Mixer (SCS.1m).
+	OXFW_DEV_ENTRY(OUI_STANTON, 0x001000, NULL),
+	// Stanton, Stanton Controllers & Systems 1 Deck (SCS.1d).
+	OXFW_DEV_ENTRY(OUI_STANTON, 0x002000, NULL),
+	// APOGEE, duet FireWire.
+	OXFW_DEV_ENTRY(OUI_APOGEE, 0x01dddd, NULL),
 	{ }
 };
 MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);
-- 
2.27.0

[PATCH v3 04/11] ALSA: oxfw: code refactoring to detect Mackie models

[Takashi Sakamoto]

This commit changes condition statement to call Mackie models detection
just for the device entry. Additionally, comment is added for Onyx 1640i.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 7be999c61730..2af72951ebf8 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -245,7 +245,7 @@ static int oxfw_probe(struct fw_unit *unit,
 {
 	struct snd_oxfw *oxfw;
 
-	if (entry->vendor_id == VENDOR_LOUD && !detect_loud_models(unit))
+	if (entry->vendor_id == VENDOR_LOUD && entry->model_id == 0 && !detect_loud_models(unit))
 		return -ENODEV;
 
 	/* Allocate this independent of sound card instance. */
@@ -341,6 +341,7 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 	/*
 	 * Any Mackie(Loud) models (name string/model id):
 	 *  Onyx-i series (former models):	0x081216
+	 *  Onyx 1640i:				0x001640
 	 *  Mackie Onyx Satellite:		0x00200f
 	 *  Tapco LINK.firewire 4x6:		0x000460
 	 *  d.2 pro/d.4 pro (built-in card):	Unknown
@@ -352,6 +353,7 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 				  IEEE1394_MATCH_SPECIFIER_ID |
 				  IEEE1394_MATCH_VERSION,
 		.vendor_id	= VENDOR_LOUD,
+		.model_id	= 0,
 		.specifier_id	= SPECIFIER_1394TA,
 		.version	= VERSION_AVC,
 	},
-- 
2.27.0

[PATCH v3 05/11] ALSA: oxfw: add explicit device entry for Loud Technologies Tapco Link.FireWire 4x6

[Takashi Sakamoto]

Loud Technologies Tapco Link.FireWire 4x6 is identified as the model
with OXFW970 ASIC.

This commit adds explicit entry for the model.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 2af72951ebf8..998f0da6fd5b 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -47,7 +47,6 @@ static bool detect_loud_models(struct fw_unit *unit)
 		"Onyx 1640i",
 		"d.Pro",
 		"Mackie Onyx Satellite",
-		"Tapco LINK.firewire 4x6",
 		"U.420"};
 	char model[32];
 	int err;
@@ -338,12 +337,13 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 	OXFW_DEV_ENTRY(VENDOR_LACIE, 0x00f970, &lacie_speakers),
 	// Behringer,F-Control Audio 202.
 	OXFW_DEV_ENTRY(VENDOR_BEHRINGER, 0x00fc22, NULL),
+	// Loud Technologies, Tapco Link.FireWire 4x6.
+	OXFW_DEV_ENTRY(VENDOR_LOUD, 0x000460, NULL),
 	/*
 	 * Any Mackie(Loud) models (name string/model id):
 	 *  Onyx-i series (former models):	0x081216
 	 *  Onyx 1640i:				0x001640
 	 *  Mackie Onyx Satellite:		0x00200f
-	 *  Tapco LINK.firewire 4x6:		0x000460
 	 *  d.2 pro/d.4 pro (built-in card):	Unknown
 	 *  U.420:				Unknown
 	 *  U.420d:				Unknown
-- 
2.27.0

[PATCH v3 06/11] ALSA: oxfw: add explicit device entry for Loud Technologies Mackie Onyx Sattelite

[Takashi Sakamoto]

Loud Technologies Mackie Onyx Satellite is identified as the model with
OXFW970 ASIC.

This commit adds explicit entry for the model.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 998f0da6fd5b..e851149c5280 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -46,7 +46,6 @@ static bool detect_loud_models(struct fw_unit *unit)
 		"Onyx-i",
 		"Onyx 1640i",
 		"d.Pro",
-		"Mackie Onyx Satellite",
 		"U.420"};
 	char model[32];
 	int err;
@@ -339,15 +338,14 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 	OXFW_DEV_ENTRY(VENDOR_BEHRINGER, 0x00fc22, NULL),
 	// Loud Technologies, Tapco Link.FireWire 4x6.
 	OXFW_DEV_ENTRY(VENDOR_LOUD, 0x000460, NULL),
-	/*
-	 * Any Mackie(Loud) models (name string/model id):
-	 *  Onyx-i series (former models):	0x081216
-	 *  Onyx 1640i:				0x001640
-	 *  Mackie Onyx Satellite:		0x00200f
-	 *  d.2 pro/d.4 pro (built-in card):	Unknown
-	 *  U.420:				Unknown
-	 *  U.420d:				Unknown
-	 */
+	// Loud Technologies, Mackie Onyx Satellite.
+	OXFW_DEV_ENTRY(VENDOR_LOUD, MODEL_SATELLITE, NULL),
+	// Any Mackie(Loud) models (name string/model id):
+	//  Onyx-i series (former models):	0x081216
+	//  Onyx 1640i:				0x001640
+	//  d.2 pro/d.4 pro (built-in card):	Unknown
+	//  U.420:				Unknown
+	//  U.420d:				Unknown
 	{
 		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
 				  IEEE1394_MATCH_SPECIFIER_ID |
-- 
2.27.0

[PATCH v3 07/11] ALSA: oxfw: add comment for the type of ASICs

[Takashi Sakamoto]

ALSA OXFW supports two types of ASICS; OXFW970 and OXFW971. The former
is known to have a quirk we call 'jumbo payload' that some isochronous
cycles are skipped to transfer isochronous packets during handling
asynchronous transaction. The quirk seems to correspond to firmware
initially delivered by Oxford Semiconductor since the quirk is not
confirmed for Mackie Onyx Satellite in which the revised firmware is
available. The quirk is not confirmed in the latter.

This commit adds code comment to describe the quirk.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index e851149c5280..9a9c84bc811a 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -332,14 +332,30 @@ static const struct compat_info lacie_speakers = {
 }
 
 static const struct ieee1394_device_id oxfw_id_table[] = {
+	//
+	// OXFW970 devices:
+	// Initial firmware has a quirk to postpone isoc packet transmission during finishing async
+	// transaction. As a result, several isochronous cycles are skipped to transfer the packets
+	// and the audio data frames which should have been transferred during the cycles are put
+	// into packet at the first isoc cycle after the postpone. Furthermore, the value of SYT
+	// field in CIP header is not reliable as synchronization timing,
+	//
 	OXFW_DEV_ENTRY(VENDOR_GRIFFIN, 0x00f970, &griffin_firewave),
 	OXFW_DEV_ENTRY(VENDOR_LACIE, 0x00f970, &lacie_speakers),
-	// Behringer,F-Control Audio 202.
+	// Behringer,F-Control Audio 202. The value of SYT field is not reliable at all.
 	OXFW_DEV_ENTRY(VENDOR_BEHRINGER, 0x00fc22, NULL),
-	// Loud Technologies, Tapco Link.FireWire 4x6.
+	// Loud Technologies, Tapco Link.FireWire 4x6. The value of SYT field is always 0xffff.
 	OXFW_DEV_ENTRY(VENDOR_LOUD, 0x000460, NULL),
-	// Loud Technologies, Mackie Onyx Satellite.
+	// Loud Technologies, Mackie Onyx Satellite. Although revised version of firmware is
+	// installed to avoid the postpone, the value of SYT field is always 0xffff.
 	OXFW_DEV_ENTRY(VENDOR_LOUD, MODEL_SATELLITE, NULL),
+	// Miglia HarmonyAudio. Not yet identified.
+
+	//
+	// OXFW971 devices:
+	// The value of SYT field in CIP header is enough reliable. Both of blocking and non-blocking
+	// transmission methods are available.
+	//
 	// Any Mackie(Loud) models (name string/model id):
 	//  Onyx-i series (former models):	0x081216
 	//  Onyx 1640i:				0x001640
-- 
2.27.0

[PATCH v3 08/11] ALSA: oxfw: code refactoring for jumbo-payload quirk in OXFW970

[Takashi Sakamoto]

This commit adds enumeration to describe quirks of OXFW ASICs.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw-stream.c | 20 +++++++-------------
 sound/firewire/oxfw/oxfw.c        |  3 +++
 sound/firewire/oxfw/oxfw.h        |  8 ++++++++
 3 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c
index 80c9dc13f1b5..65b458da2796 100644
--- a/sound/firewire/oxfw/oxfw-stream.c
+++ b/sound/firewire/oxfw/oxfw-stream.c
@@ -153,12 +153,18 @@ static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
 	struct cmp_connection *conn;
 	enum cmp_direction c_dir;
 	enum amdtp_stream_direction s_dir;
+	int flags = CIP_NONBLOCKING;
 	int err;
 
 	if (stream == &oxfw->tx_stream) {
 		conn = &oxfw->out_conn;
 		c_dir = CMP_OUTPUT;
 		s_dir = AMDTP_IN_STREAM;
+
+		if (oxfw->quirks & SND_OXFW_QUIRK_JUMBO_PAYLOAD)
+			flags |= CIP_JUMBO_PAYLOAD;
+		if (oxfw->wrong_dbs)
+			flags |= CIP_WRONG_DBS;
 	} else {
 		conn = &oxfw->in_conn;
 		c_dir = CMP_INPUT;
@@ -169,24 +175,12 @@ static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
 	if (err < 0)
 		return err;
 
-	err = amdtp_am824_init(stream, oxfw->unit, s_dir, CIP_NONBLOCKING);
+	err = amdtp_am824_init(stream, oxfw->unit, s_dir, flags);
 	if (err < 0) {
 		cmp_connection_destroy(conn);
 		return err;
 	}
 
-	/*
-	 * OXFW starts to transmit packets with non-zero dbc.
-	 * OXFW postpone transferring packets till handling any asynchronous
-	 * packets. As a result, next isochronous packet includes more data
-	 * blocks than IEC 61883-6 defines.
-	 */
-	if (stream == &oxfw->tx_stream) {
-		oxfw->tx_stream.flags |= CIP_JUMBO_PAYLOAD;
-		if (oxfw->wrong_dbs)
-			oxfw->tx_stream.flags |= CIP_WRONG_DBS;
-	}
-
 	return 0;
 }
 
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 9a9c84bc811a..90a66e1312fe 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -86,6 +86,9 @@ static int name_card(struct snd_oxfw *oxfw)
 		goto end;
 	be32_to_cpus(&firmware);
 
+	if (firmware >> 20 == 0x970)
+		oxfw->quirks |= SND_OXFW_QUIRK_JUMBO_PAYLOAD;
+
 	/* to apply card definitions */
 	if (oxfw->entry->vendor_id == VENDOR_GRIFFIN ||
 	    oxfw->entry->vendor_id == VENDOR_LACIE) {
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h
index fa2d7f9e2dc3..bc6706984fbb 100644
--- a/sound/firewire/oxfw/oxfw.h
+++ b/sound/firewire/oxfw/oxfw.h
@@ -32,6 +32,12 @@
 #include "../amdtp-am824.h"
 #include "../cmp.h"
 
+enum snd_oxfw_quirk {
+	// Postpone transferring packets during handling asynchronous transaction. As a result,
+	// next isochronous packet includes more events than one packet can include.
+	SND_OXFW_QUIRK_JUMBO_PAYLOAD = 0x01,
+};
+
 /* This is an arbitrary number for convinience. */
 #define	SND_OXFW_STREAM_FORMAT_ENTRIES	10
 struct snd_oxfw {
@@ -43,6 +49,8 @@ struct snd_oxfw {
 	bool registered;
 	struct delayed_work dwork;
 
+	// The combination of snd_oxfw_quirk enumeration-constants.
+	int quirks;
 	bool wrong_dbs;
 	bool has_output;
 	bool has_input;
-- 
2.27.0

[PATCH v3 09/11] ALSA: firewire-lib: code refactoring for jumbo payload quirk

[Takashi Sakamoto]

A new macro is added to describe the maximum number of cycles to accept
cycle skip by jumbo payload quirk.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/amdtp-stream.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index 094c9b2d772f..ba70c8b51907 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -64,6 +64,11 @@
 #define IT_PKT_HEADER_SIZE_CIP		8 // For 2 CIP header.
 #define IT_PKT_HEADER_SIZE_NO_CIP	0 // Nothing.
 
+// The initial firmware of OXFW970 can postpone transmission of packet during finishing
+// asynchronous transaction. This module accepts 5 cycles to skip as maximum to avoid buffer
+// overrun. Actual device can skip more, then this module stops the packet streaming.
+#define IR_JUMBO_PAYLOAD_MAX_SKIP_CYCLES	5
+
 static void pcm_period_work(struct work_struct *work);
 
 /**
@@ -316,7 +321,7 @@ unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s)
 	unsigned int cip_header_size = 0;
 
 	if (s->flags & CIP_JUMBO_PAYLOAD)
-		multiplier = 5;
+		multiplier = IR_JUMBO_PAYLOAD_MAX_SKIP_CYCLES;
 	if (!(s->flags & CIP_NO_HEADER))
 		cip_header_size = sizeof(__be32) * 2;
 
-- 
2.27.0

[PATCH v3 10/11] ALSA: oxfw: code refactoring for wrong_dbs quirk

[Takashi Sakamoto]

A new entry is added to the quirk enumeration for wrong_dbs quirk to
obsolete structure member.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw-stream.c | 2 +-
 sound/firewire/oxfw/oxfw.c        | 2 +-
 sound/firewire/oxfw/oxfw.h        | 3 ++-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c
index 65b458da2796..de6b40c04810 100644
--- a/sound/firewire/oxfw/oxfw-stream.c
+++ b/sound/firewire/oxfw/oxfw-stream.c
@@ -163,7 +163,7 @@ static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
 
 		if (oxfw->quirks & SND_OXFW_QUIRK_JUMBO_PAYLOAD)
 			flags |= CIP_JUMBO_PAYLOAD;
-		if (oxfw->wrong_dbs)
+		if (oxfw->quirks & SND_OXFW_QUIRK_WRONG_DBS)
 			flags |= CIP_WRONG_DBS;
 	} else {
 		conn = &oxfw->in_conn;
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 90a66e1312fe..966697dace47 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -176,7 +176,7 @@ static int detect_quirks(struct snd_oxfw *oxfw)
 	 * value in 'dbs' field of CIP header against its format information.
 	 */
 	if (vendor == VENDOR_LOUD && model == MODEL_SATELLITE)
-		oxfw->wrong_dbs = true;
+		oxfw->quirks |= SND_OXFW_QUIRK_WRONG_DBS;
 
 	return 0;
 }
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h
index bc6706984fbb..daac38d046db 100644
--- a/sound/firewire/oxfw/oxfw.h
+++ b/sound/firewire/oxfw/oxfw.h
@@ -36,6 +36,8 @@ enum snd_oxfw_quirk {
 	// Postpone transferring packets during handling asynchronous transaction. As a result,
 	// next isochronous packet includes more events than one packet can include.
 	SND_OXFW_QUIRK_JUMBO_PAYLOAD = 0x01,
+	// The dbs field of CIP header in tx packet is wrong.
+	SND_OXFW_QUIRK_WRONG_DBS = 0x02,
 };
 
 /* This is an arbitrary number for convinience. */
@@ -51,7 +53,6 @@ struct snd_oxfw {
 
 	// The combination of snd_oxfw_quirk enumeration-constants.
 	int quirks;
-	bool wrong_dbs;
 	bool has_output;
 	bool has_input;
 	u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
-- 
2.27.0

[PATCH v3 11/11] ALSA: oxfw: add quirk flag for blocking transmission method

[Takashi Sakamoto]

Stanton SCS.1m and Apogee Duet FireWire use blocking transmission method
unlike the other models.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/oxfw/oxfw-stream.c |  7 ++++++-
 sound/firewire/oxfw/oxfw.c        | 14 +++++++++++---
 sound/firewire/oxfw/oxfw.h        |  2 ++
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c
index de6b40c04810..1119de12d56a 100644
--- a/sound/firewire/oxfw/oxfw-stream.c
+++ b/sound/firewire/oxfw/oxfw-stream.c
@@ -153,9 +153,14 @@ static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
 	struct cmp_connection *conn;
 	enum cmp_direction c_dir;
 	enum amdtp_stream_direction s_dir;
-	int flags = CIP_NONBLOCKING;
+	int flags;
 	int err;
 
+	if (!(oxfw->quirks & SND_OXFW_QUIRK_BLOCKING_TRANSMISSION))
+		flags = CIP_NONBLOCKING;
+	else
+		flags = CIP_BLOCKING;
+
 	if (stream == &oxfw->tx_stream) {
 		conn = &oxfw->out_conn;
 		c_dir = CMP_OUTPUT;
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 966697dace47..59bffa32636c 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -23,6 +23,8 @@
 #define OUI_APOGEE		0x0003db
 
 #define MODEL_SATELLITE		0x00200f
+#define MODEL_SCS1M		0x001000
+#define MODEL_DUET_FW		0x01dddd
 
 #define SPECIFIER_1394TA	0x00a02d
 #define VERSION_AVC		0x010001
@@ -144,13 +146,19 @@ static int detect_quirks(struct snd_oxfw *oxfw)
 	 * messages.
 	 */
 	if (oxfw->entry->vendor_id == OUI_STANTON) {
-		/* No physical MIDI ports. */
+		if (oxfw->entry->model_id == MODEL_SCS1M)
+			oxfw->quirks |= SND_OXFW_QUIRK_BLOCKING_TRANSMISSION;
+
+		// No physical MIDI ports.
 		oxfw->midi_input_ports = 0;
 		oxfw->midi_output_ports = 0;
 
 		return snd_oxfw_scs1x_add(oxfw);
 	}
 
+	if (oxfw->entry->vendor_id == OUI_APOGEE && oxfw->entry->model_id == MODEL_DUET_FW)
+		oxfw->quirks |= SND_OXFW_QUIRK_BLOCKING_TRANSMISSION;
+
 	/*
 	 * TASCAM FireOne has physical control and requires a pair of additional
 	 * MIDI ports.
@@ -377,11 +385,11 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 	// TASCAM, FireOne.
 	OXFW_DEV_ENTRY(VENDOR_TASCAM, 0x800007, NULL),
 	// Stanton, Stanton Controllers & Systems 1 Mixer (SCS.1m).
-	OXFW_DEV_ENTRY(OUI_STANTON, 0x001000, NULL),
+	OXFW_DEV_ENTRY(OUI_STANTON, MODEL_SCS1M, NULL),
 	// Stanton, Stanton Controllers & Systems 1 Deck (SCS.1d).
 	OXFW_DEV_ENTRY(OUI_STANTON, 0x002000, NULL),
 	// APOGEE, duet FireWire.
-	OXFW_DEV_ENTRY(OUI_APOGEE, 0x01dddd, NULL),
+	OXFW_DEV_ENTRY(OUI_APOGEE, MODEL_DUET_FW, NULL),
 	{ }
 };
 MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h
index daac38d046db..66e8d58bb81d 100644
--- a/sound/firewire/oxfw/oxfw.h
+++ b/sound/firewire/oxfw/oxfw.h
@@ -38,6 +38,8 @@ enum snd_oxfw_quirk {
 	SND_OXFW_QUIRK_JUMBO_PAYLOAD = 0x01,
 	// The dbs field of CIP header in tx packet is wrong.
 	SND_OXFW_QUIRK_WRONG_DBS = 0x02,
+	// Blocking transmission mode is used.
+	SND_OXFW_QUIRK_BLOCKING_TRANSMISSION = 0x04,
 };
 
 /* This is an arbitrary number for convinience. */
-- 
2.27.0