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[ALSA] Use getnstimeofday()

Browse Source 
Modules: Documentation,PCM Midlevel,Timer Midlevel,ALSA Core

Use the standard getnstimeofday() function instead of ALSA's own one.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-10-10 11:49:49 +02:00 committed by Jaroslav Kysela
parent 7c22f1aaa2
commit 07799e756c
6 changed files with 10 additions and 41 deletions
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3
Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
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@ -2190,8 +2190,7 @@ struct _snd_pcm_runtime {
unsigned int rate_den;
/* -- SW params -- */
int tstamp_timespec; /* use timeval (0) or timespec (1) */
snd_pcm_tstamp_t tstamp_mode; /* mmap timestamp is updated */
struct timespec tstamp_mode; /* mmap timestamp is updated */
unsigned int period_step;
unsigned int sleep_min; /* min ticks to sleep */
snd_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */

23
include/sound/core.h
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@ -29,7 +29,6 @@
#include <linux/pm.h> /* pm_message_t */
/* Typedef's */
typedef struct timespec snd_timestamp_t;
typedef struct sndrv_interval snd_interval_t;
typedef enum sndrv_card_type snd_card_type;
typedef struct sndrv_xferi snd_xferi_t;
@ -464,28 +463,6 @@ void snd_verbose_printd(const char *file, int line, const char *format, ...)
#endif
static inline void snd_timestamp_now(struct timespec *tstamp, int timespec)
{
struct timeval val;
/* FIXME: use a linear time source */
do_gettimeofday(&val);
tstamp->tv_sec = val.tv_sec;
tstamp->tv_nsec = val.tv_usec;
if (timespec)
tstamp->tv_nsec *= 1000L;
}
static inline void snd_timestamp_zero(struct timespec *tstamp)
{
tstamp->tv_sec = 0;
tstamp->tv_nsec = 0;
}
static inline int snd_timestamp_null(struct timespec *tstamp)
{
return tstamp->tv_sec == 0 && tstamp->tv_nsec == 0;
}
#define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0)) /* 3.8.1a */
/* for easier backward-porting */

3
include/sound/pcm.h
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@ -281,7 +281,7 @@ typedef struct {
struct _snd_pcm_runtime {
/* -- Status -- */
snd_pcm_substream_t *trigger_master;
snd_timestamp_t trigger_tstamp; /* trigger timestamp */
struct timespec trigger_tstamp; /* trigger timestamp */
int overrange;
snd_pcm_uframes_t avail_max;
snd_pcm_uframes_t hw_ptr_base; /* Position at buffer restart */
@ -306,7 +306,6 @@ struct _snd_pcm_runtime {
unsigned int rate_den;
/* -- SW params -- */
int tstamp_timespec; /* use timeval (0) or timespec (1) */
snd_pcm_tstamp_t tstamp_mode; /* mmap timestamp is updated */
unsigned int period_step;
unsigned int sleep_min; /* min ticks to sleep */

2
sound/core/pcm_lib.c
View File

@ -152,7 +152,7 @@ static inline snd_pcm_uframes_t snd_pcm_update_hw_ptr_pos(snd_pcm_substream_t *s
if (pos == SNDRV_PCM_POS_XRUN)
return pos; /* XRUN */
if (runtime->tstamp_mode & SNDRV_PCM_TSTAMP_MMAP)
snd_timestamp_now((snd_timestamp_t*)&runtime->status->tstamp, runtime->tstamp_timespec);
getnstimeofday((struct timespec *)&runtime->status->tstamp);
#ifdef CONFIG_SND_DEBUG
if (pos >= runtime->buffer_size) {
snd_printk(KERN_ERR "BUG: stream = %i, pos = 0x%lx, buffer size = 0x%lx, period size = 0x%lx\n", substream->stream, pos, runtime->buffer_size, runtime->period_size);

14
sound/core/pcm_native.c
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@ -565,9 +565,9 @@ int snd_pcm_status(snd_pcm_substream_t *substream,
if (runtime->tstamp_mode & SNDRV_PCM_TSTAMP_MMAP)
status->tstamp = runtime->status->tstamp;
else
snd_timestamp_now(&status->tstamp, runtime->tstamp_timespec);
getnstimeofday(&status->tstamp);
} else
snd_timestamp_now(&status->tstamp, runtime->tstamp_timespec);
getnstimeofday(&status->tstamp);
status->appl_ptr = runtime->control->appl_ptr;
status->hw_ptr = runtime->status->hw_ptr;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@ -652,7 +652,7 @@ static void snd_pcm_trigger_tstamp(snd_pcm_substream_t *substream)
if (runtime->trigger_master == NULL)
return;
if (runtime->trigger_master == substream) {
snd_timestamp_now(&runtime->trigger_tstamp, runtime->tstamp_timespec);
getnstimeofday(&runtime->trigger_tstamp);
} else {
snd_pcm_trigger_tstamp(runtime->trigger_master);
runtime->trigger_tstamp = runtime->trigger_master->runtime->trigger_tstamp;
@ -2446,14 +2446,8 @@ static int snd_pcm_common_ioctl1(snd_pcm_substream_t *substream,
return put_user(SNDRV_PCM_VERSION, (int __user *)arg) ? -EFAULT : 0;
case SNDRV_PCM_IOCTL_INFO:
return snd_pcm_info_user(substream, arg);
case SNDRV_PCM_IOCTL_TSTAMP:
{
int xarg;
if (get_user(xarg, (int __user *)arg))
return -EFAULT;
substream->runtime->tstamp_timespec = xarg ? 1 : 0;
case SNDRV_PCM_IOCTL_TSTAMP: /* just for compatibility */
return 0;
}
case SNDRV_PCM_IOCTL_HW_REFINE:
return snd_pcm_hw_refine_user(substream, arg);
case SNDRV_PCM_IOCTL_HW_PARAMS:

6
sound/core/timer.c
View File

@ -385,7 +385,7 @@ static void snd_timer_notify1(snd_timer_instance_t *ti, enum sndrv_timer_event e
struct list_head *n;
struct timespec tstamp;
snd_timestamp_now(&tstamp, 1);
getnstimeofday(&tstamp);
snd_assert(event >= SNDRV_TIMER_EVENT_START && event <= SNDRV_TIMER_EVENT_PAUSE, return);
if (event == SNDRV_TIMER_EVENT_START || event == SNDRV_TIMER_EVENT_CONTINUE)
resolution = snd_timer_resolution(ti);
@ -1156,14 +1156,14 @@ static void snd_timer_user_tinterrupt(snd_timer_instance_t *timeri,
struct timespec tstamp;
int prev, append = 0;
snd_timestamp_zero(&tstamp);
memset(&tstamp, 0, sizeof(tstamp));
spin_lock(&tu->qlock);
if ((tu->filter & ((1 << SNDRV_TIMER_EVENT_RESOLUTION)|(1 << SNDRV_TIMER_EVENT_TICK))) == 0) {
spin_unlock(&tu->qlock);
return;
}
if (tu->last_resolution != resolution || ticks > 0)
snd_timestamp_now(&tstamp, 1);
getnstimeofday(&tstamp);
if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) && tu->last_resolution != resolution) {
r1.event = SNDRV_TIMER_EVENT_RESOLUTION;
r1.tstamp = tstamp;