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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-12 20:16:27 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-12 20:16:27 +0200 |
commit | e349792a385ed47390d156155b1a1e19af1bf163 (patch) | |
tree | f9dc4e3e42769950230eaa58ecdd056eb27b23e8 /include/sound/pcm.h | |
parent | Merge branch 'topic/slab/earlyboot-v2' of git://git.kernel.org/pub/scm/linux/... (diff) | |
parent | Merge branch 'topic/ps3' into for-linus (diff) | |
download | linux-e349792a385ed47390d156155b1a1e19af1bf163.tar.xz linux-e349792a385ed47390d156155b1a1e19af1bf163.zip |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (290 commits)
ALSA: pcm - Update document about xrun_debug proc file
ALSA: lx6464es - support standard alsa module parameters
ALSA: snd_usb_caiaq: set mixername
ALSA: hda - add quirk for STAC92xx (SigmaTel STAC9205)
ALSA: use card device as parent for jack input-devices
ALSA: sound/ps3: Correct existing and add missing annotations
ALSA: sound/ps3: Restructure driver source
ALSA: sound/ps3: Fix checkpatch issues
ASoC: Fix lm4857 control
ALSA: ctxfi - Clear PCM resources at hw_params and hw_free
ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks
ALSA: ctxfi - Add missing start check in atc_pcm_playback_start()
ALSA: ctxfi - Add use_system_timer module option
ALSA: usb - Add boot quirk for C-Media 6206 USB Audio
ALSA: ctxfi - Fix wrong model id for UAA
ALSA: ctxfi - Clean up probe routines
ALSA: hda - Fix the previous tagra-8ch patch
ALSA: hda - Add 7.1 support for MSI GX620
ALSA: pcm - A helper function to compose PCM stream name for debug prints
ALSA: emu10k1 - Fix minimum periods for efx playback
...
Diffstat (limited to 'include/sound/pcm.h')
-rw-r--r-- | include/sound/pcm.h | 76 |
1 files changed, 2 insertions, 74 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index c17296891617..23893523dc8c 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -98,6 +98,7 @@ struct snd_pcm_ops { #define SNDRV_PCM_IOCTL1_INFO 1 #define SNDRV_PCM_IOCTL1_CHANNEL_INFO 2 #define SNDRV_PCM_IOCTL1_GSTATE 3 +#define SNDRV_PCM_IOCTL1_FIFO_SIZE 4 #define SNDRV_PCM_TRIGGER_STOP 0 #define SNDRV_PCM_TRIGGER_START 1 @@ -270,6 +271,7 @@ struct snd_pcm_runtime { snd_pcm_uframes_t hw_ptr_base; /* Position at buffer restart */ snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time */ unsigned long hw_ptr_jiffies; /* Time when hw_ptr is updated */ + snd_pcm_sframes_t delay; /* extra delay; typically FIFO size */ /* -- HW params -- */ snd_pcm_access_t access; /* access mode */ @@ -486,80 +488,6 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream); void snd_pcm_vma_notify_data(void *client, void *data); int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area); -#if BITS_PER_LONG >= 64 - -static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem) -{ - *rem = *n % div; - *n /= div; -} - -#elif defined(i386) - -static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem) -{ - u_int32_t low, high; - low = *n & 0xffffffff; - high = *n >> 32; - if (high) { - u_int32_t high1 = high % div; - high /= div; - asm("divl %2":"=a" (low), "=d" (*rem):"rm" (div), "a" (low), "d" (high1)); - *n = (u_int64_t)high << 32 | low; - } else { - *n = low / div; - *rem = low % div; - } -} -#else - -static inline void divl(u_int32_t high, u_int32_t low, - u_int32_t div, - u_int32_t *q, u_int32_t *r) -{ - u_int64_t n = (u_int64_t)high << 32 | low; - u_int64_t d = (u_int64_t)div << 31; - u_int32_t q1 = 0; - int c = 32; - while (n > 0xffffffffU) { - q1 <<= 1; - if (n >= d) { - n -= d; - q1 |= 1; - } - d >>= 1; - c--; - } - q1 <<= c; - if (n) { - low = n; - *q = q1 | (low / div); - *r = low % div; - } else { - *r = 0; - *q = q1; - } - return; -} - -static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem) -{ - u_int32_t low, high; - low = *n & 0xffffffff; - high = *n >> 32; - if (high) { - u_int32_t high1 = high % div; - u_int32_t low1 = low; - high /= div; - divl(high1, low1, div, &low, rem); - *n = (u_int64_t)high << 32 | low; - } else { - *n = low / div; - *rem = low % div; - } -} -#endif - /* * PCM library */ |