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ALSA: bebob: add 'version' member for BeBoB protocol version

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BeBoB installed devices have BeBoB register area. This area stores
basic information about its firmware. A register has its protocol
version.

This commit adds 'version' member and store the device's protocol
version to handle v3 quirks in following commits.

Tested-by: Kim Tore Jensen <kim@incendio.no>
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2015-06-14 12:49:33 +09:00 committed by Takashi Iwai
parent 0577379271
commit 7b4d7dcfa8
2 changed files with 11 additions and 0 deletions
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8
sound/firewire/bebob/bebob.c
View file

@ -33,6 +33,7 @@ static DEFINE_MUTEX(devices_mutex);
static DECLARE_BITMAP(devices_used, SNDRV_CARDS);
/* Offsets from information register. */
#define INFO_OFFSET_BEBOB_VERSION 0x08
#define INFO_OFFSET_GUID 0x10
#define INFO_OFFSET_HW_MODEL_ID 0x18
#define INFO_OFFSET_HW_MODEL_REVISION 0x1c
@ -73,6 +74,7 @@ name_device(struct snd_bebob *bebob, unsigned int vendor_id)
u32 hw_id;
u32 data[2] = {0};
u32 revision;
u32 version;
int err;
/* get vendor name from root directory */
@ -105,6 +107,12 @@ name_device(struct snd_bebob *bebob, unsigned int vendor_id)
if (err < 0)
goto end;
err = snd_bebob_read_quad(bebob->unit, INFO_OFFSET_BEBOB_VERSION,
&version);
if (err < 0)
goto end;
bebob->version = version;
strcpy(bebob->card->driver, "BeBoB");
strcpy(bebob->card->shortname, model);
strcpy(bebob->card->mixername, model);

3
sound/firewire/bebob/bebob.h
View file

@ -115,6 +115,9 @@ struct snd_bebob {
/* for M-Audio special devices */
void *maudio_special_quirk;
bool deferred_registration;
/* For BeBoB version quirk. */
unsigned int version;
};
static inline int