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- added SYNC_PTR ioctl support for pcm_hw plugin

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This commit is contained in:
Jaroslav Kysela 2004-05-22 10:14:32 +00:00
parent 5a2c2e0295
commit eafb492512
7 changed files with 186 additions and 63 deletions
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19
include/sound/asound.h
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@ -153,7 +153,7 @@ enum {
* *
*****************************************************************************/
#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
typedef unsigned long sndrv_pcm_uframes_t;
typedef long sndrv_pcm_sframes_t;
@ -428,6 +428,22 @@ struct sndrv_pcm_mmap_control {
sndrv_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
};
#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */
#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */
#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */
struct sndrv_pcm_sync_ptr {
unsigned int flags;
union {
struct sndrv_pcm_mmap_status status;
unsigned char reserved[64];
} s;
union {
struct sndrv_pcm_mmap_control control;
unsigned char reserved[64];
} c;
};
struct sndrv_xferi {
sndrv_pcm_sframes_t result;
void *buf;
@ -451,6 +467,7 @@ enum {
SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct sndrv_pcm_status),
SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, sndrv_pcm_sframes_t),
SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22),
SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct sndrv_pcm_sync_ptr),
SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct sndrv_pcm_channel_info),
SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40),
SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41),