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ALSA: bebob: Add support for M-Audio special Firewire series 

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 a model specific member to 'struct
snd_bebob' and some model specific functions. Some parameters are write-only so
this commit also adds control interface for applications to set 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.
 - After booting up, they often fail to send response against driver's request
   due to mismatch of gap_count.

This module don't support to upload firmware.

Tested-by: Darren Anderson <darrena092@gmail.com> (ProjectMix I/O)
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2014-04-25 22:45:26 +09:00 committed by Takashi Iwai
parent 9076c22ddd
commit 3149ac489f
5 changed files with 609 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
sound/firewire/Kconfig
View File

@ -115,6 +115,7 @@ 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.

19
sound/firewire/bebob/bebob.c
View File

@ -60,6 +60,8 @@ static DECLARE_BITMAP(devices_used, SNDRV_CARDS);
#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)
@ -210,7 +212,14 @@ 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;
@ -270,6 +279,8 @@ static void bebob_remove(struct fw_unit *unit)
if (bebob == NULL)
return;
kfree(bebob->maudio_special_quirk);
snd_bebob_stream_destroy_duplex(bebob);
snd_card_disconnect(bebob->card);
snd_card_free_when_closed(bebob->card);
@ -375,6 +386,12 @@ 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 */
/* Apogee, Mini-ME Firewire */
/* Apogee, Mini-DAC Firewire */

5
sound/firewire/bebob/bebob.h
View File

@ -106,6 +106,9 @@ 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
@ -237,6 +240,8 @@ 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;
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) \
{ \

550
sound/firewire/bebob/bebob_maudio.c
View File

@ -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 */
@ -50,6 +58,15 @@
/* for NRV */
#define UNKNOWN_METER "Unknown"
struct special_params {
bool is1814;
unsigned int clk_src;
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
get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
{
@ -58,6 +75,516 @@ get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
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 as 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
avc_maudio_set_special_clk(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 */
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) && (err < 10))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
else if (buf[0] == 0x0a) /* REJECTED */
err = -EINVAL;
if (err < 0)
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);
err = 0;
end:
kfree(buf);
return err;
}
static void
special_stream_formation_set(struct snd_bebob *bebob)
{
static const unsigned int ch_table[2][2][3] = {
/* AMDTP_OUT_STREAM */
{ { 6, 6, 4 }, /* SPDIF */
{ 12, 8, 4 } }, /* ADAT */
/* AMDTP_IN_STREAM */
{ { 10, 10, 2 }, /* SPDIF */
{ 16, 12, 2 } } /* ADAT */
};
struct special_params *params = bebob->maudio_special_quirk;
unsigned int i, max;
max = SND_BEBOB_STRM_FMT_ENTRIES - 1;
if (!params->is1814)
max -= 2;
for (i = 0; i < max; i++) {
bebob->tx_stream_formations[i + 1].pcm =
ch_table[AMDTP_IN_STREAM][params->dig_in_fmt][i / 2];
bebob->tx_stream_formations[i + 1].midi = 1;
bebob->rx_stream_formations[i + 1].pcm =
ch_table[AMDTP_OUT_STREAM][params->dig_out_fmt][i / 2];
bebob->rx_stream_formations[i + 1].midi = 1;
}
}
static int add_special_controls(struct snd_bebob *bebob);
int
snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814)
{
struct special_params *params;
int err;
params = kzalloc(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);
err = avc_maudio_set_special_clk(bebob, 0x03, 0x00, 0x00, 0x00);
if (err < 0) {
dev_err(&bebob->unit->device,
"fail to initialize clock params: %d\n", err);
goto end;
}
err = add_special_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)
{
int err, trials;
trials = 0;
do {
err = avc_general_get_sig_fmt(bebob->unit, rate,
AVC_GENERAL_PLUG_DIR_IN, 0);
} while (err == -EAGAIN && ++trials < 3);
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 = avc_general_set_sig_fmt(bebob->unit, rate,
AVC_GENERAL_PLUG_DIR_OUT, 0);
if (err < 0)
goto end;
/*
* Just after changing sampling rate for output, a followed command
* for input is easy to fail. This is a workaround fot this issue.
*/
msleep(100);
err = avc_general_set_sig_fmt(bebob->unit, rate,
AVC_GENERAL_PLUG_DIR_IN, 0);
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 *const 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 = avc_maudio_set_special_clk(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 *const 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;
unsigned int dig_in_iface;
int err, val;
mutex_lock(&bebob->mutex);
err = avc_audio_get_selector(bebob->unit, 0x00, 0x04,
&dig_in_iface);
if (err < 0) {
dev_err(&bebob->unit->device,
"fail to get digital input interface: %d\n", err);
goto end;
}
/* encoded id for user value */
val = (params->dig_in_fmt << 1) | (dig_in_iface & 0x01);
/* for ADAT Optical */
if (val > 2)
val = 2;
uval->value.enumerated.item[0] = val;
end:
mutex_unlock(&bebob->mutex);
return err;
}
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 = avc_maudio_set_special_clk(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)
dev_err(&bebob->unit->device,
"fail to set digital input interface: %d\n", err);
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 = avc_maudio_set_special_clk(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 add_special_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 *const 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;
/* Its format is u16 and some channels are unknown. */
i = 0;
for (c = 2; c < channels + 2; c++)
target[i++] = be16_to_cpu(buf[c]) << 16;
end:
kfree(buf);
return err;
}
/* last 4 bytes are omitted because it's clock info. */
static char *const fw410_meter_labels[] = {
ANA_IN, DIG_IN,
@ -115,6 +642,27 @@ 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,

45
sound/firewire/bebob/bebob_stream.c
View File

@ -389,6 +389,10 @@ break_both_connections(struct snd_bebob *bebob)
cmp_connection_break(&bebob->out_conn);
bebob->connected = false;
/* These models seems to be in transition state for a longer time. */
if (bebob->maudio_special_quirk != NULL)
msleep(200);
}
static void
@ -421,9 +425,11 @@ start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream,
conn = &bebob->out_conn;
/* channel mapping */
err = map_data_channels(bebob, stream);
if (err < 0)
goto end;
if (bebob->maudio_special_quirk == NULL) {
err = map_data_channels(bebob, stream);
if (err < 0)
goto end;
}
/* start amdtp stream */
err = amdtp_stream_start(stream,
@ -555,13 +561,17 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate)
* 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) {
dev_err(&bebob->unit->device,
"fail to set sampling rate: %d\n",
err);
goto end;
if (bebob->maudio_special_quirk == NULL) {
err = rate_spec->set(bebob, rate);
if (err < 0) {
dev_err(&bebob->unit->device,
"fail to set sampling rate: %d\n",
err);
goto end;
}
}
err = make_both_connections(bebob, rate);
@ -576,6 +586,23 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate)
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) {
dev_err(&bebob->unit->device,
"fail to ensure sampling rate: %d\n",
err);
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);