On 1/6/17 7:21 PM, Jerome Anand wrote:
Use a hw register to calculate sub-period position reports. This makes PulseAudio happier.
From Takashi: There is no big merit to keep this a separate patch. Please fold into the main patch. You can put some comment in the code for explanation.
Signed-off-by: David Henningsson david.henningsson@canonical.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Jerome Anand jerome.anand@intel.com
sound/x86/intel_hdmi_audio.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index d7b57658..d2036bc 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1489,6 +1489,8 @@ static snd_pcm_uframes_t snd_intelhad_pcm_pointer( { struct snd_intelhad *intelhaddata; u32 bytes_rendered = 0;
u32 t;
int buf_id;
/* pr_debug("snd_intelhad_pcm_pointer called\n"); */
@@ -1499,6 +1501,14 @@ static snd_pcm_uframes_t snd_intelhad_pcm_pointer( return SNDRV_PCM_POS_XRUN; }
- buf_id = intelhaddata->curr_buf % 4;
- had_read_register(AUD_BUF_A_LENGTH + (buf_id * HAD_REG_WIDTH), &t);
- if (t == 0) {
pr_debug("discovered buffer done for buf %d\n", buf_id);/* had_process_buffer_done(intelhaddata); */- }
- t = intelhaddata->buf_info[buf_id].buf_size - t;
- if (intelhaddata->stream_info.buffer_rendered) div_u64_rem(intelhaddata->stream_info.buffer_rendered, intelhaddata->stream_info.ring_buf_size,
@@ -1506,7 +1516,7 @@ static snd_pcm_uframes_t snd_intelhad_pcm_pointer(
intelhaddata->stream_info.buffer_ptr = bytes_to_frames( substream->runtime,
bytes_rendered);
bytes_rendered + t);}