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ASoC: SOF: Intel: hda: couple host and link DMA during FE hw_free

Forráskód böngészése 
Host and link DMA are decoupled during FE hw_params. So,
they must be coupled in hw_free if the link DMA channel
is idle.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ranjani Sridharan
2019-06-12 12:23:39 -05:00
committed by Mark Brown
szülő 7077a07a72
commit 93146bc22f
7 fájl változott, egészen pontosan 46 új sor hozzáadva és 0 régi sor törölve
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1
sound/soc/sof/intel/apl.c
Fájl megtekintése

@@ -61,6 +61,7 @@ const struct snd_sof_dsp_ops sof_apl_ops = {
.pcm_open = hda_dsp_pcm_open,
.pcm_close = hda_dsp_pcm_close,
.pcm_hw_params = hda_dsp_pcm_hw_params,
.pcm_hw_free = hda_dsp_stream_hw_free,
.pcm_trigger = hda_dsp_pcm_trigger,
.pcm_pointer = hda_dsp_pcm_pointer,

1
sound/soc/sof/intel/cnl.c
Fájl megtekintése

@@ -219,6 +219,7 @@ const struct snd_sof_dsp_ops sof_cnl_ops = {
.pcm_open = hda_dsp_pcm_open,
.pcm_close = hda_dsp_pcm_close,
.pcm_hw_params = hda_dsp_pcm_hw_params,
.pcm_hw_free = hda_dsp_stream_hw_free,
.pcm_trigger = hda_dsp_pcm_trigger,
.pcm_pointer = hda_dsp_pcm_pointer,

20
sound/soc/sof/intel/hda-stream.c
Fájl megtekintése

@@ -438,6 +438,26 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev,
return ret;
}
int hda_dsp_stream_hw_free(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream)
{
struct hdac_stream *stream = substream->runtime->private_data;
struct hdac_ext_stream *link_dev = container_of(stream,
struct hdac_ext_stream,
hstream);
struct hdac_bus *bus = sof_to_bus(sdev);
u32 mask = 0x1 << stream->index;
spin_lock(&bus->reg_lock);
/* couple host and link DMA if link DMA channel is idle */
if (!link_dev->link_locked)
snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR,
SOF_HDA_REG_PP_PPCTL, mask, 0);
spin_unlock(&bus->reg_lock);
return 0;
}
irqreturn_t hda_dsp_stream_interrupt(int irq, void *context)
{
struct hdac_bus *bus = context;

2
sound/soc/sof/intel/hda.h
Fájl megtekintése

@@ -468,6 +468,8 @@ int hda_dsp_pcm_hw_params(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct sof_ipc_stream_params *ipc_params);
int hda_dsp_stream_hw_free(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream);
int hda_dsp_pcm_trigger(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream, int cmd);
snd_pcm_uframes_t hda_dsp_pcm_pointer(struct snd_sof_dev *sdev,