Commit 07799e75 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
Browse files

[ALSA] Use getnstimeofday() 



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

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

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 7c22f1aa

Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl

+1 −2
Original line number Diff line number Diff line
@@ -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 */

include/sound/core.h

+0 −23
Original line number Diff line number Diff line
@@ -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 */

include/sound/pcm.h

+1 −2
Original line number Diff line number Diff line
@@ -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 */

sound/core/pcm_lib.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

sound/core/pcm_native.c

+4 −10
Original line number Diff line number Diff line
@@ -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: