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authorTakashi Iwai <tiwai@suse.de>2010-01-26 18:13:04 +0100
committerTakashi Iwai <tiwai@suse.de>2010-01-26 18:13:04 +0100
commitd0d2c38e3963f4f86a9e62d74f45a371458f2787 (patch)
tree8ab868d67fcd4151e9b7a8158edc0cb2e1a19f66 /sound/core
parentcf944ee55cc318bdb1d4b2f3f5cce3257f7c07b3 (diff)
parente7636925789b042ff9d98c51d48392e8c5549480 (diff)
Merge remote branch 'alsa/devel' into topic/misc
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/oss/pcm_oss.c3
-rw-r--r--sound/core/pcm_lib.c7
-rw-r--r--sound/core/pcm_native.c2
3 files changed, 8 insertions, 4 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 255ad910077..82d4e3329b3 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -635,8 +635,7 @@ static long snd_pcm_alsa_frames(struct snd_pcm_substream *substream, long bytes)
static inline
snd_pcm_uframes_t get_hw_ptr_period(struct snd_pcm_runtime *runtime)
{
- snd_pcm_uframes_t ptr = runtime->status->hw_ptr;
- return ptr - (ptr % runtime->period_size);
+ return runtime->hw_ptr_interrupt;
}
/* define extended formats in the recent OSS versions (if any) */
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 272f15d1901..b546ac2660f 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -325,8 +325,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
if (in_interrupt) {
/* we know that one period was processed */
/* delta = "expected next hw_ptr" for in_interrupt != 0 */
- delta = old_hw_ptr - (old_hw_ptr % runtime->period_size)
- + runtime->period_size;
+ delta = runtime->hw_ptr_interrupt + runtime->period_size;
if (delta > new_hw_ptr) {
hw_base += runtime->buffer_size;
if (hw_base >= runtime->boundary)
@@ -437,6 +436,10 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, new_hw_ptr);
+ if (in_interrupt) {
+ runtime->hw_ptr_interrupt = new_hw_ptr -
+ (new_hw_ptr % runtime->period_size);
+ }
runtime->hw_ptr_base = hw_base;
runtime->status->hw_ptr = new_hw_ptr;
runtime->hw_ptr_jiffies = jiffies;
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index b53fa845004..b79c777d211 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1252,6 +1252,8 @@ static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
if (err < 0)
return err;
runtime->hw_ptr_base = 0;
+ runtime->hw_ptr_interrupt = runtime->status->hw_ptr -
+ runtime->status->hw_ptr % runtime->period_size;
runtime->silence_start = runtime->status->hw_ptr;
runtime->silence_filled = 0;
return 0;