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pcm: direct: Add generic hw_ptr_alignment function for dmix, dshare and dsnoop

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Move the code snd_pcm_direct_reset_slave_ptr() from pcm_dmix.c
to pcm_direct.c and its header so that the helper function can be
re-used by other direct-pcm plugins.
There is no change in the behavior or the functionality.

Signed-off-by: Vanitha Channaiah <vanitha.channaiah@in.bosch.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Vanitha Channaiah 2019-05-15 11:56:32 +05:30 • committed by Takashi Iwai
parent 9122992a91
commit 63ba5243ab
3 changed files with 29 additions and 23 deletions
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8
src/pcm/pcm_direct.h
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@ -24,6 +24,11 @@
#define DIRECT_IPC_SEMS 1
#define DIRECT_IPC_SEM_CLIENT 0
/* Seconds representing in Milli seconds */
#define SEC_TO_MS 1000
/* slave_period time for low latency requirements in ms */
#define LOW_LATENCY_PERIOD_TIME 10
typedef void (mix_areas_t)(unsigned int size,
volatile void *dst, void *src,
@ -257,6 +262,8 @@ struct snd_pcm_direct {
snd1_pcm_direct_get_chmap
#define snd_pcm_direct_set_chmap \
snd1_pcm_direct_set_chmap
#define snd_pcm_direct_reset_slave_ptr \
snd1_pcm_direct_reset_slave_ptr
int snd_pcm_direct_semaphore_create_or_connect(snd_pcm_direct_t *dmix);
@ -341,6 +348,7 @@ int snd_pcm_direct_slave_recover(snd_pcm_direct_t *direct);
int snd_pcm_direct_client_chk_xrun(snd_pcm_direct_t *direct, snd_pcm_t *pcm);
int snd_timer_async(snd_timer_t *timer, int sig, pid_t pid);
struct timespec snd_pcm_hw_fast_tstamp(snd_pcm_t *pcm);
void snd_pcm_direct_reset_slave_ptr(snd_pcm_t *pcm, snd_pcm_direct_t *dmix);
struct snd_pcm_direct_open_conf {
key_t ipc_key;