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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 11:16:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 11:16:27 -0700
commite349792a385ed47390d156155b1a1e19af1bf163 (patch)
treef9dc4e3e42769950230eaa58ecdd056eb27b23e8 /include/sound/pcm.h
parent6d21491838a2a9f22843c7530b118596ee9f4d77 (diff)
parente3f86d3d3ce350144562d9bd035dc8a274fce58e (diff)
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.h76
1 files changed, 2 insertions, 74 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index c1729689161..23893523dc8 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
*/