[alsa-devel] [PATCH 52/52] bebob: Add support for M-Audio special Firewire series

Takashi Sakamoto o-takashi at sakamocchi.jp
Wed Jan 29 15:49:37 CET 2014


This commit is optional. The aim of this commit is to show firmware
quirks for some M-Audio devices.

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 have a time not to respond transaction. 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 at sakamocchi.jp>
---
 sound/firewire/Kconfig                |   1 +
 sound/firewire/bebob/bebob.c          |  21 +-
 sound/firewire/bebob/bebob.h          |  10 +-
 sound/firewire/bebob/bebob_command.c  |  16 +-
 sound/firewire/bebob/bebob_maudio.c   | 583 +++++++++++++++++++++++++++++++++-
 sound/firewire/bebob/bebob_stream.c   |  39 ++-
 sound/firewire/bebob/bebob_terratec.c |   6 +-
 sound/firewire/bebob/bebob_yamaha.c   |   2 +-
 8 files changed, 653 insertions(+), 25 deletions(-)

diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index e073b89..3742f3e 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -122,6 +122,7 @@ 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 22bda91..7ae2a58 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)
@@ -214,7 +216,14 @@ 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;
 
@@ -277,6 +286,9 @@ static void bebob_remove(struct fw_unit *unit)
 	if (bebob == NULL)
 		return;
 
+	if (bebob->maudio_special_quirk != NULL)
+		kfree(bebob->maudio_special_quirk);
+
 	snd_bebob_stream_destroy_duplex(bebob);
 	snd_card_disconnect(bebob->card);
 	snd_card_free_when_closed(bebob->card);
@@ -383,6 +395,13 @@ 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, 0x00010070, NULL),	/* bootloader */
+	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 */
 	/*  Apogee, Mini-ME Firewire */
 	/*  Apogee, Mini-DAC Firewire */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 1c4cc19..a9c4db5 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -101,6 +101,9 @@ struct snd_bebob {
 	int dev_lock_count;
 	bool dev_lock_changed;
 	wait_queue_head_t hwdep_wait;
+
+	/* for M-Audio special devices */
+	void *maudio_special_quirk;
 };
 
 static inline int
@@ -123,7 +126,7 @@ snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf)
 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);
+			   unsigned int fb_id, unsigned int *num, bool quiet);
 
 /*
  * AVC command extensions, AV/C Unit and Subunit, Revision 17
@@ -196,7 +199,7 @@ int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit,
 				   unsigned int *len);
 
 int snd_bebob_get_rate(struct snd_bebob *bebob, unsigned int *rate,
-		       enum avc_general_plug_dir dir);
+		       enum avc_general_plug_dir dir, bool quiet);
 int snd_bebob_set_rate(struct snd_bebob *bebob, unsigned int rate,
 		       enum avc_general_plug_dir dir);
 
@@ -242,6 +245,9 @@ 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);
+
 int snd_bebob_maudio_load_firmware(struct fw_unit *unit);
 
 #define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c
index c63c6d8..ef7c21e 100644
--- a/sound/firewire/bebob/bebob_command.c
+++ b/sound/firewire/bebob/bebob_command.c
@@ -50,7 +50,7 @@ end:
 }
 
 int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id,
-			   unsigned int fb_id, unsigned int *num)
+			   unsigned int fb_id, unsigned int *num, bool quiet)
 {
 	u8 *buf;
 	int err;
@@ -76,9 +76,10 @@ int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id,
 	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]);
+		if (!quiet)
+			dev_err(&unit->device,
+				"failed to get selector %d: 0x%02X\n",
+				fb_id, buf[0]);
 		err = -EIO;
 		goto end;
 	}
@@ -314,7 +315,7 @@ end:
 }
 
 int snd_bebob_get_rate(struct snd_bebob *bebob, unsigned int *rate,
-		       enum avc_general_plug_dir dir)
+		       enum avc_general_plug_dir dir, bool quiet)
 {
 	int err;
 
@@ -324,8 +325,9 @@ int snd_bebob_get_rate(struct snd_bebob *bebob, unsigned int *rate,
 
 	/* IMPLEMENTED/STABLE is OK */
 	if (err != 0x0c) {
-		dev_err(&bebob->unit->device,
-			"failed to get sampling rate\n");
+		if (!quiet)
+			dev_err(&bebob->unit->device,
+				"failed to get sampling rate\n");
 		err = -EIO;
 	}
 end:
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
index e3ab42c..c890fe40 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
@@ -31,8 +32,16 @@
  * 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 MAX_TRIALS	3
+
 /* Offset from information register */
 #define INFO_OFFSET_SW_DATE	0x20
 
@@ -52,6 +61,7 @@
 #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 */
@@ -73,6 +83,16 @@
 /* for NRV */
 #define UNKNOWN_METER	"Unknown"
 
+struct special_params {
+	bool 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;
+};
+
 /*
  * For some M-Audio devices, this module just send cue to load firmware. After
  * loading, the device generates bus reset and newly detected.
@@ -127,7 +147,545 @@ get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
 				  buf, size, 0);
 }
 
-/* Firewire 410 specific operation */
+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;
+}
+
+/*
+ * 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)
+{
+	struct special_params *params = bebob->maudio_special_quirk;
+	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;
+	}
+
+	params->clk_src		= buf[6];
+	params->dig_in_fmt	= buf[7];
+	params->dig_out_fmt	= buf[8];
+	params->clk_lock	= buf[9];
+
+	if (params->ctl_id_sync)
+		snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
+			       params->ctl_id_sync);
+end:
+	kfree(buf);
+	return err;
+}
+static void
+special_stream_formation_set(struct snd_bebob *bebob)
+{
+	struct special_params *params = bebob->maudio_special_quirk;
+	unsigned int i;
+
+	/*
+	 * the stream formation is different depending on digital interface
+	 */
+	if (params->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 (params->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 (params->is1814) {
+			bebob->tx_stream_formations[7].pcm = 2;
+			bebob->tx_stream_formations[8].pcm = 2;
+		}
+	}
+
+	if (params->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 (params->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 (params->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) && !params->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)
+{
+	unsigned int trials;
+	struct special_params *params;
+	int err;
+
+	params = kmalloc(sizeof(struct special_params), GFP_KERNEL);
+	if (params == NULL)
+		return -ENOMEM;
+
+	mutex_lock(&bebob->mutex);
+
+	bebob->maudio_special_quirk = (void *)params;
+	params->is1814 = is1814;
+
+	/* initialize these parameters because driver is not allowed to ask */
+	bebob->rx_stream.context = ERR_PTR(-1);
+	bebob->tx_stream.context = ERR_PTR(-1);
+	trials = 0;
+	do {
+		err = special_clk_set_params(bebob, 0x03, 0x00, 0x00, 0x00);
+		if (err >= 0)
+			break;
+	} while (++trials < MAX_TRIALS);
+	if (err < 0) {
+		dev_err(&bebob->unit->device,
+			"failed to initialize clock params\n");
+		goto end;
+	}
+
+	trials = 0;
+	do {
+		err = avc_audio_get_selector(bebob->unit, 0x00, 0x04,
+					     &params->dig_in_iface, true);
+		if (err >= 0)
+			break;
+	} while (++trials < MAX_TRIALS);
+	if (err < 0) {
+		dev_err(&bebob->unit->device,
+			"failed to get current dig iface.");
+		goto end;
+	}
+
+	err = snd_bebob_maudio_special_add_controls(bebob);
+	if (err < 0)
+		goto end;
+
+	special_stream_formation_set(bebob);
+
+	if (params->is1814) {
+		bebob->midi_input_ports = 1;
+		bebob->midi_output_ports = 1;
+	} else {
+		bebob->midi_input_ports = 2;
+		bebob->midi_output_ports = 2;
+	}
+end:
+	if (err < 0) {
+		kfree(params);
+		bebob->maudio_special_quirk = NULL;
+	}
+	mutex_unlock(&bebob->mutex);
+	return err;
+}
+
+/* Input plug shows actual rate. Output plug is needless for this purpose. */
+static int special_get_rate(struct snd_bebob *bebob, unsigned int *rate)
+{
+	unsigned int trials;
+	int err;
+
+	trials = 0;
+	do {
+		err = snd_bebob_get_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_IN,
+					 true);
+		if (err >= 0)
+			break;
+	} while (++trials < MAX_TRIALS);
+	if (err < 0)
+		dev_err(&bebob->unit->device,
+			"failed to get sampling rate\n");
+
+	return err;
+}
+static int special_set_rate(struct snd_bebob *bebob, unsigned int rate)
+{
+	struct special_params *params = bebob->maudio_special_quirk;
+	int err;
+
+	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);
+	if (err < 0)
+		goto end;
+
+	if (params->ctl_id_sync)
+		snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
+			       params->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)
+{
+	struct special_params *params = bebob->maudio_special_quirk;
+	*id = params->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);
+	struct special_params *params = bebob->maudio_special_quirk;
+	uval->value.enumerated.item[0] = params->clk_src;
+	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);
+	struct special_params *params = bebob->maudio_special_quirk;
+	int err, id;
+
+	mutex_lock(&bebob->mutex);
+
+	id = uval->value.enumerated.item[0];
+	if (id >= ARRAY_SIZE(special_clk_labels))
+		return 0;
+
+	err = special_clk_set_params(bebob, id,
+				     params->dig_in_fmt,
+				     params->dig_out_fmt,
+				     params->clk_lock);
+	mutex_unlock(&bebob->mutex);
+
+	return err >= 0;
+}
+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;
+
+	err = check_clk_sync(bebob, METER_SIZE_SPECIAL, &synced);
+	if (err >= 0)
+		uval->value.integer.value[0] = synced;
+
+	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);
+	struct special_params *params = bebob->maudio_special_quirk;
+	int val;
+
+	/* encoded id for user value */
+	val = (params->dig_in_fmt << 1) | (params->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);
+	struct special_params *params = bebob->maudio_special_quirk;
+	unsigned int id, dig_in_fmt, dig_in_iface;
+	int err;
+
+	mutex_lock(&bebob->mutex);
+
+	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, params->clk_src, dig_in_fmt,
+				     params->dig_out_fmt, params->clk_lock);
+	if ((err < 0) || (params->dig_in_fmt > 0)) /* ADAT */
+		goto end;
+
+	err = avc_audio_set_selector(bebob->unit, 0x00, 0x04, dig_in_iface);
+	if (err < 0)
+		goto end;
+
+	params->dig_in_iface = dig_in_iface;
+end:
+	special_stream_formation_set(bebob);
+	mutex_unlock(&bebob->mutex);
+	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);
+	struct special_params *params = bebob->maudio_special_quirk;
+	mutex_lock(&bebob->mutex);
+	uval->value.enumerated.item[0] = params->dig_out_fmt;
+	mutex_unlock(&bebob->mutex);
+	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);
+	struct special_params *params = bebob->maudio_special_quirk;
+	unsigned int id;
+	int err;
+
+	mutex_lock(&bebob->mutex);
+
+	id = uval->value.enumerated.item[0];
+
+	err = special_clk_set_params(bebob, params->clk_src, params->dig_in_fmt,
+				     id, params->clk_lock);
+	if (err >= 0)
+		special_stream_formation_set(bebob);
+
+	mutex_unlock(&bebob->mutex);
+	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;
+	struct special_params *params = bebob->maudio_special_quirk;
+	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;
+	params->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,
@@ -278,6 +836,27 @@ 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 61dd54e..3998123 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -72,11 +72,13 @@ 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);
+	err = snd_bebob_get_rate(bebob, &tx_rate, AVC_GENERAL_PLUG_DIR_OUT,
+				 false);
 	if (err < 0)
 		goto end;
 
-	err = snd_bebob_get_rate(bebob, &rx_rate, AVC_GENERAL_PLUG_DIR_IN);
+	err = snd_bebob_get_rate(bebob, &rx_rate, AVC_GENERAL_PLUG_DIR_IN,
+				 false);
 	if (err < 0)
 		goto end;
 
@@ -342,7 +344,6 @@ break_both_connections(struct snd_bebob *bebob)
 {
 	cmp_connection_break(&bebob->in_conn);
 	cmp_connection_break(&bebob->out_conn);
-	return;
 }
 
 static void
@@ -379,9 +380,11 @@ 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 == NULL) {
+		err = map_stream(bebob, stream);
+		if (err < 0)
+			goto end;
+	}
 
 	/* start amdtp stream */
 	err = amdtp_stream_start(stream,
@@ -472,10 +475,14 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
 		 * NOTE:
 		 * If establishing connections at first, Yamaha GO46
 		 * (and maybe Terratec X24) don't generate sound.
+		 *
+		 * For firmware customized by M-Audio, refer to next NOTE.
 		 */
-		err = rate_spec->set(bebob, rate);
-		if (err < 0)
-			goto end;
+		if (bebob->maudio_special_quirk == NULL) {
+			err = rate_spec->set(bebob, rate);
+			if (err < 0)
+				goto end;
+		}
 
 		err = make_both_connections(bebob, rate);
 		if (err < 0)
@@ -489,6 +496,20 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
 			goto end;
 		}
 
+		/*
+		 * NOTE:
+		 * The firmware customized by M-Audio uses these commands to
+		 * start transmitting stream. This is not usual way.
+		 */
+		if (bebob->maudio_special_quirk != NULL) {
+			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, CALLBACK_TIMEOUT)) {
 			amdtp_stream_stop(master);
diff --git a/sound/firewire/bebob/bebob_terratec.c b/sound/firewire/bebob/bebob_terratec.c
index 9c2cebf..d5da8de 100644
--- a/sound/firewire/bebob/bebob_terratec.c
+++ b/sound/firewire/bebob/bebob_terratec.c
@@ -17,10 +17,10 @@ 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);
+	err = avc_audio_get_selector(bebob->unit, 0, 0, &enable_ext, false);
 	if (err < 0)
 		goto end;
-	err = avc_audio_get_selector(bebob->unit, 0, 0, &enable_word);
+	err = avc_audio_get_selector(bebob->unit, 0, 0, &enable_word, false);
 	if (err < 0)
 		goto end;
 
@@ -35,7 +35,7 @@ static char *phase24_series_clk_src_labels[] = {
 static int
 phase24_series_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
 {
-	return avc_audio_get_selector(bebob->unit, 0, 4, id);
+	return avc_audio_get_selector(bebob->unit, 0, 4, id, false);
 }
 
 struct snd_bebob_rate_spec phase_series_rate_spec = {
diff --git a/sound/firewire/bebob/bebob_yamaha.c b/sound/firewire/bebob/bebob_yamaha.c
index f71af6b..23ca489 100644
--- a/sound/firewire/bebob/bebob_yamaha.c
+++ b/sound/firewire/bebob/bebob_yamaha.c
@@ -32,7 +32,7 @@ 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);
+	return avc_audio_get_selector(bebob->unit, 0, 4, id, false);
 }
 static struct snd_bebob_clock_spec clock_spec = {
 	.num	= ARRAY_SIZE(clk_src_labels),
-- 
1.8.3.2



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