diff options
| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-04-25 22:45:26 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-05-26 14:32:21 +0200 |
| commit | 3149ac489ff8dea0c305c7f97ac2a1b4ad54f5be (patch) | |
| tree | ad5ead9df75157589593cd7985aad418cc1aad17 /sound/firewire/bebob/bebob.h | |
| parent | 9076c22ddd9d29a30426f0367dec2b40e12536de (diff) | |
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>
Diffstat (limited to 'sound/firewire/bebob/bebob.h')
| -rw-r--r-- | sound/firewire/bebob/bebob.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h index a851639ead45..eba012958b5c 100644 --- a/sound/firewire/bebob/bebob.h +++ b/sound/firewire/bebob/bebob.h @@ -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) \ { \ |