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ASoC: SOF: Intel: Set the dai/host get frame/byte counter callbacks

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Add implementation for reading the LDP (Linear DMA Position) to be used as
get_host_byte_counter().
The LDP is counting the number of bytes moved between the DSP and host
memory.

Set the get_dai_frame_counter to hda_dsp_get_stream_llp, which is counting
the frames on the link side of the DSP.

Cc: stable@vger.kernel.org # 6.8
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240321130814.4412-8-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2024-03-21 15:08:04 +02:00 committed by Mark Brown
parent ce2faa9a18
commit fd6f6a0632
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GPG Key ID: 24D68B725D5487D0
3 changed files with 36 additions and 0 deletions
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2
sound/soc/sof/intel/hda-common-ops.c
View File

@ -58,6 +58,8 @@ struct snd_sof_dsp_ops sof_hda_common_ops = {
.pcm_ack = hda_dsp_pcm_ack,
.get_stream_position = hda_dsp_get_stream_llp,
.get_dai_frame_counter = hda_dsp_get_stream_llp,
.get_host_byte_counter = hda_dsp_get_stream_ldp,
/* firmware loading */
.load_firmware = snd_sof_load_firmware_raw,

31
sound/soc/sof/intel/hda-stream.c
View File

@ -1095,3 +1095,34 @@ u64 hda_dsp_get_stream_llp(struct snd_sof_dev *sdev,
return ((u64)llp_u << 32) | llp_l;
}
/**
* hda_dsp_get_stream_ldp - Retrieve the LDP (Linear DMA Position) of the stream
* @sdev: SOF device
* @component: ASoC component
* @substream: PCM substream
*
* Returns the raw Linear Link Position value
*/
u64 hda_dsp_get_stream_ldp(struct snd_sof_dev *sdev,
struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
struct hdac_stream *hstream = substream->runtime->private_data;
struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
u32 ldp_l, ldp_u;
/*
* The pphc_addr have been calculated during probe in
* hda_dsp_stream_init():
* pphc_addr = sdev->bar[HDA_DSP_PP_BAR] +
* SOF_HDA_PPHC_BASE +
* SOF_HDA_PPHC_INTERVAL * stream_index
*
* Use this pre-calculated address to avoid repeated re-calculation.
*/
ldp_l = readl(hext_stream->pphc_addr + AZX_REG_PPHCLDPL);
ldp_u = readl(hext_stream->pphc_addr + AZX_REG_PPHCLDPU);
return ((u64)ldp_u << 32) | ldp_l;
}

3
sound/soc/sof/intel/hda.h
View File

@ -665,6 +665,9 @@ snd_pcm_uframes_t hda_dsp_stream_get_position(struct hdac_stream *hstream,
u64 hda_dsp_get_stream_llp(struct snd_sof_dev *sdev,
struct snd_soc_component *component,
struct snd_pcm_substream *substream);
u64 hda_dsp_get_stream_ldp(struct snd_sof_dev *sdev,
struct snd_soc_component *component,
struct snd_pcm_substream *substream);
struct hdac_ext_stream *
hda_dsp_stream_get(struct snd_sof_dev *sdev, int direction, u32 flags);