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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-31 23:16:28 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-31 23:16:28 (GMT) |
| commit | e1a9c9872dd004617555dff079b357a6ffd945e9 (patch) | |
| tree | c34779e59712ff345f8e4ee97e74086a85b34974 /sound/core/timer.c | |
| parent | fcc3ff4f9d695a80dc6e6058e0d631a3026ed4c3 (diff) | |
| parent | 2ecba4ffbbc6c85fce8c3878514be415edace413 (diff) | |
| download | linux-fsl-qoriq-e1a9c9872dd004617555dff079b357a6ffd945e9.tar.xz | |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa: (299 commits)
[ALSA] version 1.0.16rc2
[ALSA] hda: fix Mic in as output
[ALSA] emu10k1 - Another EMU0404 Board ID
[ALSA] emu10k1 - Fix kthread handling at resume
[ALSA] emu10k1: General cleanup, add new locks, fix alsa bug#3501, kernel bug#9304.
[ALSA] emu10k1 - Use enum for emu_model types
[ALSA] emu10k1 - Don't create emu1010 controls for non-emu boards
[ALSA] emu10k1 - 1616(M) cardbus improvements
[ALSA] snd:emu10k1: E-Mu updates. Fixes to firmware loading and support for 0404.
[ALSA] emu10k1: Add comments regarding E-Mu ins and outs.
[ALSA] oxygen: revert SPI clock frequency change for AK4396/WM8785
[ALSA] es1938 - improve capture hw pointer reads
[ALSA] HDA-Intel - Add support for Intel SCH
[ALSA] hda: Add GPIO mute support to STAC9205
[ALSA] hda-codec - Add Dell T3400 support
[ALSA] hda-codec - Add model for HP DV9553EG laptop
[ALSA] hda-codec - Control SPDIF as slave
[ALSA] hda_intel: ALSA HD Audio patch for Intel ICH10 DeviceID's
[ALSA] Fix Oops with PCM OSS sync
[ALSA] hda-codec - Add speaker automute to ALC262 HP models
...
Diffstat (limited to 'sound/core/timer.c')
| -rw-r--r-- | sound/core/timer.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c index e7dc56c..aece465 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -19,7 +19,6 @@ * */ -#include <sound/driver.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/slab.h> @@ -44,11 +43,14 @@ #endif static int timer_limit = DEFAULT_TIMER_LIMIT; +static int timer_tstamp_monotonic = 1; MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>"); MODULE_DESCRIPTION("ALSA timer interface"); MODULE_LICENSE("GPL"); module_param(timer_limit, int, 0444); MODULE_PARM_DESC(timer_limit, "Maximum global timers in system."); +module_param(timer_tstamp_monotonic, int, 0444); +MODULE_PARM_DESC(timer_tstamp_monotonic, "Use posix monotonic clock source for timestamps (default)."); struct snd_timer_user { struct snd_timer_instance *timeri; @@ -381,7 +383,10 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event) struct snd_timer_instance *ts; struct timespec tstamp; - getnstimeofday(&tstamp); + if (timer_tstamp_monotonic) + do_posix_clock_monotonic_gettime(&tstamp); + else + getnstimeofday(&tstamp); snd_assert(event >= SNDRV_TIMER_EVENT_START && event <= SNDRV_TIMER_EVENT_PAUSE, return); if (event == SNDRV_TIMER_EVENT_START || @@ -1182,8 +1187,12 @@ static void snd_timer_user_tinterrupt(struct snd_timer_instance *timeri, spin_unlock(&tu->qlock); return; } - if (tu->last_resolution != resolution || ticks > 0) - getnstimeofday(&tstamp); + if (tu->last_resolution != resolution || ticks > 0) { + if (timer_tstamp_monotonic) + do_posix_clock_monotonic_gettime(&tstamp); + else + getnstimeofday(&tstamp); + } if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) && tu->last_resolution != resolution) { r1.event = SNDRV_TIMER_EVENT_RESOLUTION; |