[alsa-devel] [PATCH 37/38] bebob: Add support for M-Audio special Firewire series
Takashi Sakamoto
o-takashi at sakamocchi.jp
Fri Dec 20 14:14:28 CET 2013
This commit allows this driver to support some models which M-Audio produces
with DM1000 but its firmware is special. They are:
- Firewire 1814
- ProjectMix I/O
They have heavily customized firmware. The usual operations can't be applied to
them. For this reason, this commit adds some model specific members in 'struct
snd_bebob' and model specific functions. Some parameters are write-only so this
commit also adds control interface for them.
M-Audio special firmware quirks:
- Just after powering on, they wait to download firmware. This state is
changed when receiving cue. Then bus reset is generated and the device is
recognized as a different model with the uploaded firmware.
- They don't respond against BridgeCo AV/C extension commands. So drivers
can't get their stream formations and so on.
- They do not start to transmit packets only by establishing connection but
also by receiving SIGNAL FORMAT command.
- They can't handle frequent transactions. In this reason, this driver often
fail to handle them.
This module don't support to upload firmware.
Signed-off-by: Takashi Sakamoto <o-takashi at sakamocchi.jp>
---
sound/firewire/Kconfig | 1 +
sound/firewire/bebob/bebob.c | 17 +-
sound/firewire/bebob/bebob.h | 13 +
sound/firewire/bebob/bebob_maudio.c | 492 +++++++++++++++++++++++++++++++++++-
sound/firewire/bebob/bebob_stream.c | 22 +-
5 files changed, 539 insertions(+), 6 deletions(-)
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index d71faf6..1149997 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -111,6 +111,7 @@ config SND_BEBOB
* Focusrite Saffire/Saffire LE/SaffirePro10 IO/SaffirePro26 IO
* M-Audio Firewire410/AudioPhile/Solo
* M-Audio Ozonic/NRV10/ProfireLightBridge
+ * M-Audio Firewire 1814/ProjectMix IO
To compile this driver as a module, choose M here: the module
will be called snd-bebob.
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 65554ef..65e856e 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -60,6 +60,8 @@ static unsigned int devices_used;
#define MODEL_FOCUSRITE_SAFFIRE_BOTH 0x00000000
#define MODEL_MAUDIO_AUDIOPHILE_BOTH 0x00010060
+#define MODEL_MAUDIO_FW1814 0x00010071
+#define MODEL_MAUDIO_PROJECTMIX 0x00010091
static int
name_device(struct snd_bebob *bebob, unsigned int vendor_id)
@@ -212,7 +214,14 @@ bebob_probe(struct fw_unit *unit,
if (err < 0)
goto error;
- err = snd_bebob_stream_discover(bebob);
+ if ((entry->vendor_id == VEN_MAUDIO1) &&
+ (entry->model_id == MODEL_MAUDIO_FW1814))
+ err = snd_bebob_maudio_special_discover(bebob, true);
+ else if ((entry->vendor_id == VEN_MAUDIO1) &&
+ (entry->model_id == MODEL_MAUDIO_PROJECTMIX))
+ err = snd_bebob_maudio_special_discover(bebob, false);
+ else
+ err = snd_bebob_stream_discover(bebob);
if (err < 0)
goto error;
@@ -370,6 +379,12 @@ static const struct ieee1394_device_id bebob_id_table[] = {
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010081, &maudio_nrv10_spec),
/* M-Audio, ProFireLightbridge */
SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x000100a1, &spec_normal),
+ /* Firewire 1814 */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_FW1814,
+ &maudio_special_spec),
+ /* M-Audio ProjectMix */
+ SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_PROJECTMIX,
+ &maudio_special_spec),
/* Ids are unknown but able to be supported */
/* Mackie, Digital X Bus x.200 */
/* Mackie, Digital X Bus x.400 */
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index c67d5e5..c65e7b3 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -100,6 +100,16 @@ struct snd_bebob {
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
+
+ /* for M-Audio special devices */
+ bool maudio_special_quirk;
+ bool maudio_is1814;
+ unsigned int clk_src;
+ unsigned int dig_in_iface;
+ unsigned int dig_in_fmt;
+ unsigned int dig_out_fmt;
+ unsigned int clk_lock;
+ struct snd_ctl_elem_id *ctl_id_sync;
};
static inline int
@@ -241,6 +251,9 @@ extern struct snd_bebob_spec maudio_solo_spec;
extern struct snd_bebob_spec maudio_ozonic_spec;
extern struct snd_bebob_spec maudio_nrv10_spec;
+extern struct snd_bebob_spec maudio_special_spec;
+int snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814);
+
#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
index 715cf34..b941042 100644
--- a/sound/firewire/bebob/bebob_maudio.c
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -7,9 +7,10 @@
*/
#include "./bebob.h"
+#include <sound/control.h>
/*
- * Just powering on, Firewire 410/Audiophile wait to
+ * Just powering on, Firewire 410/Audiophile/1814 and ProjectMix I/O wait to
* download firmware blob. To enable these devices, drivers should upload
* firmware blob and send a command to initialize configuration to factory
* settings when completing uploading. Then these devices generate bus reset
@@ -22,6 +23,12 @@
* Without streaming, the devices except for Firewire Audiophile can mix any
* input and output. For this reason, Audiophile cannot be used as standalone
* mixer.
+ *
+ * Firewire 1814 and ProjectMix I/O uses special firmware. It will be freezed
+ * when receiving any commands which the firmware can't understand. These
+ * devices utilize completely different system to control. It is some
+ * write-transaction directly into a certain address. All of addresses for mixer
+ * functionality is between 0xffc700700000 to 0xffc70070009c.
*/
#define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000
@@ -29,6 +36,7 @@
#define METER_OFFSET 0x00600000
/* some device has sync info after metering data */
+#define METER_SIZE_SPECIAL 84 /* with sync info */
#define METER_SIZE_FW410 76 /* with sync info */
#define METER_SIZE_AUDIOPHILE 60 /* with sync info */
#define METER_SIZE_SOLO 52 /* with sync info */
@@ -79,7 +87,466 @@ end:
return err;
}
-/* Firewire 410 specific operation */
+/*
+ * dig_fmt: 0x00:S/PDIF, 0x01:ADAT
+ * clk_lock: 0x00:unlock, 0x01:lock
+ */
+static int
+special_clk_set_params(struct snd_bebob *bebob, unsigned int clk_src,
+ unsigned int dig_in_fmt, unsigned int dig_out_fmt,
+ unsigned int clk_lock)
+{
+ int err;
+ u8 *buf;
+
+ if (amdtp_stream_running(&bebob->rx_stream) ||
+ amdtp_stream_running(&bebob->tx_stream))
+ return -EBUSY;
+
+ buf = kmalloc(12, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x00; /* CONTROL */
+ buf[1] = 0xff; /* UNIT */
+ buf[2] = 0x00; /* vendor dependent */
+ buf[3] = 0x04; /* company ID high */
+ buf[4] = 0x00; /* company ID middle */
+ buf[5] = 0x04; /* company ID low */
+ buf[6] = 0xff & clk_src; /* clock source */
+ buf[7] = 0xff & dig_in_fmt; /* input digital format */
+ buf[8] = 0xff & dig_out_fmt; /* output digital format */
+ buf[9] = 0xff & clk_lock; /* lock these settings */
+ buf[10] = 0x00; /* padding */
+ buf[11] = 0x00; /* padding */
+
+ /* do transaction and check buf[1-9] are the same against command */
+ err = fcp_avc_transaction(bebob->unit, buf, 12, buf, 12,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) |
+ BIT(5) | BIT(6) | BIT(7) | BIT(8) |
+ BIT(9));
+ if (err < 0)
+ goto end;
+ if ((err < 6) || (buf[0] != 0x09)) {
+ dev_err(&bebob->unit->device,
+ "failed to set clock params\n");
+ err = -EIO;
+ goto end;
+ }
+
+ bebob->clk_src = buf[6];
+ bebob->dig_in_fmt = buf[7];
+ bebob->dig_out_fmt = buf[8];
+ bebob->clk_lock = buf[9];
+
+ snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ bebob->ctl_id_sync);
+end:
+ kfree(buf);
+ return err;
+}
+static void
+special_stream_formation_set(struct snd_bebob *bebob)
+{
+ unsigned int i;
+
+ /*
+ * the stream formation is different depending on digital interface
+ */
+ if (bebob->dig_in_fmt == 0x01) {
+ bebob->tx_stream_formations[3].pcm = 16;
+ bebob->tx_stream_formations[4].pcm = 16;
+ bebob->tx_stream_formations[5].pcm = 12;
+ bebob->tx_stream_formations[6].pcm = 12;
+ if (bebob->maudio_is1814) {
+ bebob->tx_stream_formations[7].pcm = 2;
+ bebob->tx_stream_formations[8].pcm = 2;
+ }
+ } else {
+ bebob->tx_stream_formations[3].pcm = 10;
+ bebob->tx_stream_formations[4].pcm = 10;
+ bebob->tx_stream_formations[5].pcm = 10;
+ bebob->tx_stream_formations[6].pcm = 10;
+ if (bebob->maudio_is1814) {
+ bebob->tx_stream_formations[7].pcm = 2;
+ bebob->tx_stream_formations[8].pcm = 2;
+ }
+ }
+
+ if (bebob->dig_out_fmt == 0x01) {
+ bebob->rx_stream_formations[3].pcm = 12;
+ bebob->rx_stream_formations[4].pcm = 12;
+ bebob->rx_stream_formations[5].pcm = 8;
+ bebob->rx_stream_formations[6].pcm = 8;
+ if (bebob->maudio_is1814) {
+ bebob->rx_stream_formations[7].pcm = 4;
+ bebob->rx_stream_formations[8].pcm = 4;
+ }
+ } else {
+ bebob->rx_stream_formations[3].pcm = 6;
+ bebob->rx_stream_formations[4].pcm = 6;
+ bebob->rx_stream_formations[5].pcm = 6;
+ bebob->rx_stream_formations[6].pcm = 6;
+ if (bebob->maudio_is1814) {
+ bebob->rx_stream_formations[7].pcm = 4;
+ bebob->rx_stream_formations[8].pcm = 4;
+ }
+ }
+
+ for (i = 3; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {
+ bebob->tx_stream_formations[i].midi = 1;
+ bebob->rx_stream_formations[i].midi = 1;
+ if ((i > 7) && !bebob->maudio_is1814)
+ break;
+ }
+}
+
+static int snd_bebob_maudio_special_add_controls(struct snd_bebob *bebob);
+int
+snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814)
+{
+ int err;
+
+ bebob->maudio_is1814 = is1814;
+
+ /* initialize these parameters because driver is not allowed to ask */
+ err = special_clk_set_params(bebob, 0x03, 0x00, 0x00, 0x00);
+ if (err < 0)
+ dev_err(&bebob->unit->device,
+ "failed to initialize clock params\n");
+
+ err = avc_audio_get_selector(bebob->unit, 0x00, 0x04,
+ &bebob->dig_in_iface);
+ if (err < 0)
+ dev_err(&bebob->unit->device,
+ "failed to get current dig iface.");
+
+ err = snd_bebob_maudio_special_add_controls(bebob);
+ if (err < 0)
+ return -EIO;
+
+ special_stream_formation_set(bebob);
+
+ if (bebob->maudio_is1814) {
+ bebob->midi_input_ports = 1;
+ bebob->midi_output_ports = 1;
+ } else {
+ bebob->midi_input_ports = 2;
+ bebob->midi_output_ports = 2;
+ }
+
+ bebob->maudio_special_quirk = true;
+
+ return 0;
+}
+
+/* Input plug shows actual rate. Output plug is needless for this purpose. */
+static int special_get_rate(struct snd_bebob *bebob, unsigned int *rate)
+{
+ return snd_bebob_get_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_IN);
+}
+static int special_set_rate(struct snd_bebob *bebob, unsigned int rate)
+{
+ int err = snd_bebob_set_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_OUT);
+ msleep(100);
+ if (err < 0)
+ goto end;
+
+ err = snd_bebob_set_rate(bebob, rate, AVC_GENERAL_PLUG_DIR_IN);
+ msleep(100);
+ if (err >= 0)
+ snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ bebob->ctl_id_sync);
+end:
+ return err;
+}
+
+/* Clock source control for special firmware */
+static char *special_clk_labels[] = {
+ SND_BEBOB_CLOCK_INTERNAL " with Digital Mute", "Digital",
+ "Word Clock", SND_BEBOB_CLOCK_INTERNAL};
+static int special_clk_get(struct snd_bebob *bebob,
+ unsigned int *id)
+{
+ *id = bebob->clk_src;
+ return 0;
+}
+static int special_clk_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ einf->count = 1;
+ einf->value.enumerated.items = ARRAY_SIZE(special_clk_labels);
+
+ if (einf->value.enumerated.item >= einf->value.enumerated.items)
+ einf->value.enumerated.item = einf->value.enumerated.items - 1;
+
+ strcpy(einf->value.enumerated.name,
+ special_clk_labels[einf->value.enumerated.item]);
+
+ return 0;
+}
+static int special_clk_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+
+ spin_lock(&bebob->lock);
+ uval->value.enumerated.item[0] = bebob->clk_src;
+ spin_unlock(&bebob->lock);
+
+ return 0;
+}
+static int special_clk_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ int err, id, changed = 0;
+
+ id = uval->value.enumerated.item[0];
+ if (id >= ARRAY_SIZE(special_clk_labels))
+ return 0;
+
+ spin_lock(&bebob->lock);
+ err = special_clk_set_params(bebob, id,
+ bebob->dig_in_fmt,
+ bebob->dig_out_fmt,
+ bebob->clk_lock);
+ changed = (err >= 0);
+ spin_unlock(&bebob->lock);
+
+ return changed;
+}
+static struct snd_kcontrol_new special_clk_ctl = {
+ .name = "Clock Source",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = special_clk_ctl_info,
+ .get = special_clk_ctl_get,
+ .put = special_clk_ctl_put
+};
+
+/* Clock synchronization control for special firmware */
+static int special_sync_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ einf->count = 1;
+ einf->value.integer.min = 0;
+ einf->value.integer.max = 1;
+
+ return 0;
+}
+static int special_sync_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ int err;
+ bool synced = 0;
+
+ mutex_lock(&bebob->mutex);
+ err = check_clk_sync(bebob, METER_SIZE_SPECIAL, &synced);
+ if (err >= 0)
+ uval->value.integer.value[0] = synced;
+ mutex_unlock(&bebob->mutex);
+
+ return 0;
+}
+static struct snd_kcontrol_new special_sync_ctl = {
+ .name = "Sync Status",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .info = special_sync_ctl_info,
+ .get = special_sync_ctl_get,
+};
+
+/* Digital interface control for special firmware */
+static char *special_dig_iface_labels[] = {
+ "S/PDIF Optical", "S/PDIF Coaxial", "ADAT Optical"
+};
+static int special_dig_in_iface_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ einf->count = 1;
+ einf->value.enumerated.items = ARRAY_SIZE(special_dig_iface_labels);
+
+ if (einf->value.enumerated.item >= einf->value.enumerated.items)
+ einf->value.enumerated.item = einf->value.enumerated.items - 1;
+
+ strcpy(einf->value.enumerated.name,
+ special_dig_iface_labels[einf->value.enumerated.item]);
+
+ return 0;
+}
+static int special_dig_in_iface_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ int val;
+
+ /* encoded id for user value */
+ val = (bebob->dig_in_fmt << 1) | (bebob->dig_in_iface & 0x01);
+
+ /* for ADAT Optical */
+ if (val > 2)
+ val = 2;
+
+ uval->value.enumerated.item[0] = val;
+
+ return 0;
+}
+static int special_dig_in_iface_ctl_set(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ unsigned int id, dig_in_fmt, dig_in_iface;
+ int err;
+
+ id = uval->value.enumerated.item[0];
+
+ /* decode user value */
+ dig_in_fmt = (id >> 1) & 0x01;
+ dig_in_iface = id & 0x01;
+
+ err = special_clk_set_params(bebob, bebob->clk_src, dig_in_fmt,
+ bebob->dig_out_fmt, bebob->clk_lock);
+ if ((err < 0) || (bebob->dig_in_fmt > 0)) /* ADAT */
+ goto end;
+
+ err = avc_audio_set_selector(bebob->unit, 0x00, 0x04, dig_in_iface);
+ if (err < 0)
+ goto end;
+
+ bebob->dig_in_iface = dig_in_iface;
+end:
+ special_stream_formation_set(bebob);
+ return err;
+}
+static struct snd_kcontrol_new special_dig_in_iface_ctl = {
+ .name = "Digital Input Interface",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = special_dig_in_iface_ctl_info,
+ .get = special_dig_in_iface_ctl_get,
+ .put = special_dig_in_iface_ctl_set
+};
+
+static int special_dig_out_iface_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *einf)
+{
+ einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ einf->count = 1;
+ einf->value.enumerated.items = ARRAY_SIZE(special_dig_iface_labels) - 1;
+
+ if (einf->value.enumerated.item >= einf->value.enumerated.items)
+ einf->value.enumerated.item = einf->value.enumerated.items - 1;
+
+ strcpy(einf->value.enumerated.name,
+ special_dig_iface_labels[einf->value.enumerated.item + 1]);
+
+ return 0;
+}
+static int special_dig_out_iface_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ uval->value.enumerated.item[0] = bebob->dig_out_fmt;
+ return 0;
+}
+static int special_dig_out_iface_ctl_set(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uval)
+{
+ struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
+ unsigned int id;
+ int err;
+
+ id = uval->value.enumerated.item[0];
+
+ err = special_clk_set_params(bebob, bebob->clk_src, bebob->dig_in_fmt,
+ id, bebob->clk_lock);
+ if (err >= 0)
+ special_stream_formation_set(bebob);
+
+ return err;
+}
+static struct snd_kcontrol_new special_dig_out_iface_ctl = {
+ .name = "Digital Output Interface",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = special_dig_out_iface_ctl_info,
+ .get = special_dig_out_iface_ctl_get,
+ .put = special_dig_out_iface_ctl_set
+};
+
+static int snd_bebob_maudio_special_add_controls(struct snd_bebob *bebob)
+{
+ struct snd_kcontrol *kctl;
+ int err;
+
+ kctl = snd_ctl_new1(&special_clk_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+ if (err < 0)
+ goto end;
+
+ kctl = snd_ctl_new1(&special_sync_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+ if (err < 0)
+ goto end;
+ bebob->ctl_id_sync = &kctl->id;
+
+ kctl = snd_ctl_new1(&special_dig_in_iface_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+ if (err < 0)
+ goto end;
+
+ kctl = snd_ctl_new1(&special_dig_out_iface_ctl, bebob);
+ err = snd_ctl_add(bebob->card, kctl);
+end:
+ return err;
+}
+
+/* Hardware metering for special firmware */
+static char *special_meter_labels[] = {
+ ANA_IN, ANA_IN, ANA_IN, ANA_IN,
+ SPDIF_IN,
+ ADAT_IN, ADAT_IN, ADAT_IN, ADAT_IN,
+ ANA_OUT, ANA_OUT,
+ SPDIF_OUT,
+ ADAT_OUT, ADAT_OUT, ADAT_OUT, ADAT_OUT,
+ HP_OUT, HP_OUT,
+ AUX_OUT
+};
+static int
+special_meter_get(struct snd_bebob *bebob, u32 *target, unsigned int size)
+{
+ u16 *buf;
+ unsigned int i, c, channels;
+ int err;
+
+ channels = ARRAY_SIZE(special_meter_labels) * 2;
+ if (size < channels * sizeof(u32))
+ return -EINVAL;
+
+ /* omit last 4 bytes because it's clock info. */
+ buf = kmalloc(METER_SIZE_SPECIAL - 4, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ err = get_meter(bebob, (void *)buf, METER_SIZE_SPECIAL - 4);
+ if (err < 0)
+ goto end;
+
+ /* some channels are not used, and format is u16 */
+ i = 0;
+ for (c = 2; c < channels + 2; c++)
+ target[i++] = be16_to_cpu(buf[c]) << 16;
+end:
+ kfree(buf);
+ return err;
+}
+
+/* Firewire 410 specific operations */
static char *fw410_meter_labels[] = {
ANA_IN, DIG_IN,
ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, DIG_OUT,
@@ -230,6 +697,27 @@ end:
return err;
}
+/* for special customized devices */
+static struct snd_bebob_rate_spec special_rate_spec = {
+ .get = &special_get_rate,
+ .set = &special_set_rate,
+};
+static struct snd_bebob_clock_spec special_clk_spec = {
+ .num = ARRAY_SIZE(special_clk_labels),
+ .labels = special_clk_labels,
+ .get = &special_clk_get,
+};
+static struct snd_bebob_meter_spec special_meter_spec = {
+ .num = ARRAY_SIZE(special_meter_labels),
+ .labels = special_meter_labels,
+ .get = &special_meter_get
+};
+struct snd_bebob_spec maudio_special_spec = {
+ .clock = &special_clk_spec,
+ .rate = &special_rate_spec,
+ .meter = &special_meter_spec
+};
+
/* Firewire 410 specification */
static struct snd_bebob_rate_spec usual_rate_spec = {
.get = &snd_bebob_stream_get_rate,
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 5865fed..9a5bd58 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -361,9 +361,11 @@ start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream,
conn = &bebob->out_conn;
/* channel mapping */
- err = map_stream(bebob, stream);
- if (err < 0)
- goto end;
+ if (!bebob->maudio_special_quirk) {
+ err = map_stream(bebob, stream);
+ if (err < 0)
+ goto end;
+ }
/* start amdtp stream */
err = amdtp_stream_start(stream,
@@ -482,6 +484,20 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob,
goto end;
}
+ /*
+ * NOTE:
+ * The firmware customized by M-Audio uses this cue to start
+ * transmit stream. This is not usual way.
+ */
+ if (bebob->maudio_special_quirk) {
+ err = rate_spec->set(bebob, rate);
+ if (err < 0) {
+ amdtp_stream_stop(master);
+ break_both_connections(bebob);
+ goto end;
+ }
+ }
+
/* wait first callback */
if (!amdtp_stream_wait_callback(master)) {
amdtp_stream_stop(master);
--
1.8.3.2
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