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

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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
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45
sound/firewire/bebob/bebob_stream.c
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@@ -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);