diff options
Diffstat (limited to 'drivers/sound/ac97.h')
| -rw-r--r-- | drivers/sound/ac97.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/sound/ac97.h b/drivers/sound/ac97.h index 490d69f88..294000f6d 100644 --- a/drivers/sound/ac97.h +++ b/drivers/sound/ac97.h @@ -10,7 +10,7 @@ #include "sound_config.h" #include "sound_calls.h" -#define AC97_RESET 0x0000 // */ +#define AC97_RESET 0x0000 // #define AC97_MASTER_VOL_STEREO 0x0002 // Line Out #define AC97_HEADPHONE_VOL 0x0004 // #define AC97_MASTER_VOL_MONO 0x0006 // TAD Output @@ -207,6 +207,10 @@ extern int ac97_get_mixer_scaled (struct ac97_hwint *dev, int oss_channel); /* Default ioctl. */ extern int ac97_mixer_ioctl (struct ac97_hwint *dev, unsigned int cmd, caddr_t arg); + +/* Do a complete reset on the AC97 mixer, restoring all mixer registers to + the current values. Normally used after an APM resume event. */ +extern int ac97_reset (struct ac97_hwint *dev); #endif /* |