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-rw-r--r--sound/soc/sof/intel/hda-common-ops.c3
-rw-r--r--sound/soc/sof/intel/hda-dai-ops.c11
-rw-r--r--sound/soc/sof/intel/hda-pcm.c29
-rw-r--r--sound/soc/sof/intel/hda-stream.c70
-rw-r--r--sound/soc/sof/intel/hda.h6
-rw-r--r--sound/soc/sof/intel/lnl.c2
-rw-r--r--sound/soc/sof/intel/mtl.c14
-rw-r--r--sound/soc/sof/intel/mtl.h10
-rw-r--r--sound/soc/sof/ipc4-pcm.c191
-rw-r--r--sound/soc/sof/ipc4-priv.h14
-rw-r--r--sound/soc/sof/ipc4-topology.c22
-rw-r--r--sound/soc/sof/ops.h24
-rw-r--r--sound/soc/sof/pcm.c8
-rw-r--r--sound/soc/sof/sof-audio.h9
-rw-r--r--sound/soc/sof/sof-priv.h24
15 files changed, 348 insertions, 89 deletions
diff --git a/sound/soc/sof/intel/hda-common-ops.c b/sound/soc/sof/intel/hda-common-ops.c
index 2b385cddc385..d71bb66b9991 100644
--- a/sound/soc/sof/intel/hda-common-ops.c
+++ b/sound/soc/sof/intel/hda-common-ops.c
@@ -57,6 +57,9 @@ struct snd_sof_dsp_ops sof_hda_common_ops = {
.pcm_pointer = hda_dsp_pcm_pointer,
.pcm_ack = hda_dsp_pcm_ack,
+ .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,
diff --git a/sound/soc/sof/intel/hda-dai-ops.c b/sound/soc/sof/intel/hda-dai-ops.c
index c50ca9e72d37..b073720b4cf4 100644
--- a/sound/soc/sof/intel/hda-dai-ops.c
+++ b/sound/soc/sof/intel/hda-dai-ops.c
@@ -7,6 +7,7 @@
#include <sound/pcm_params.h>
#include <sound/hdaudio_ext.h>
+#include <sound/hda_register.h>
#include <sound/hda-mlink.h>
#include <sound/sof/ipc4/header.h>
#include <uapi/sound/sof/header.h>
@@ -362,6 +363,16 @@ static int hda_trigger(struct snd_sof_dev *sdev, struct snd_soc_dai *cpu_dai,
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
snd_hdac_ext_stream_clear(hext_stream);
+
+ /*
+ * Save the LLP registers in case the stream is
+ * restarting due PAUSE_RELEASE, or START without a pcm
+ * close/open since in this case the LLP register is not reset
+ * to 0 and the delay calculation will return with invalid
+ * results.
+ */
+ hext_stream->pplcllpl = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPL);
+ hext_stream->pplcllpu = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPU);
break;
default:
dev_err(sdev->dev, "unknown trigger command %d\n", cmd);
diff --git a/sound/soc/sof/intel/hda-pcm.c b/sound/soc/sof/intel/hda-pcm.c
index 18f07364d219..d7b446f3f973 100644
--- a/sound/soc/sof/intel/hda-pcm.c
+++ b/sound/soc/sof/intel/hda-pcm.c
@@ -259,8 +259,37 @@ int hda_dsp_pcm_open(struct snd_sof_dev *sdev,
snd_pcm_hw_constraint_mask64(substream->runtime, SNDRV_PCM_HW_PARAM_FORMAT,
SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_S32);
+ /*
+ * The dsp_max_burst_size_in_ms is the length of the maximum burst size
+ * of the host DMA in the ALSA buffer.
+ *
+ * On playback start the DMA will transfer dsp_max_burst_size_in_ms
+ * amount of data in one initial burst to fill up the host DMA buffer.
+ * Consequent DMA burst sizes are shorter and their length can vary.
+ * To make sure that userspace allocate large enough ALSA buffer we need
+ * to place a constraint on the buffer time.
+ *
+ * On capture the DMA will transfer 1ms chunks.
+ *
+ * Exact dsp_max_burst_size_in_ms constraint is racy, so set the
+ * constraint to a minimum of 2x dsp_max_burst_size_in_ms.
+ */
+ if (spcm->stream[direction].dsp_max_burst_size_in_ms)
+ snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_BUFFER_TIME,
+ spcm->stream[direction].dsp_max_burst_size_in_ms * USEC_PER_MSEC * 2,
+ UINT_MAX);
+
/* binding pcm substream to hda stream */
substream->runtime->private_data = &dsp_stream->hstream;
+
+ /*
+ * Reset the llp cache values (they are used for LLP compensation in
+ * case the counter is not reset)
+ */
+ dsp_stream->pplcllpl = 0;
+ dsp_stream->pplcllpu = 0;
+
return 0;
}
diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c
index b387b1a69d7e..0c189d3b19c1 100644
--- a/sound/soc/sof/intel/hda-stream.c
+++ b/sound/soc/sof/intel/hda-stream.c
@@ -1063,3 +1063,73 @@ snd_pcm_uframes_t hda_dsp_stream_get_position(struct hdac_stream *hstream,
return pos;
}
+
+#define merge_u64(u32_u, u32_l) (((u64)(u32_u) << 32) | (u32_l))
+
+/**
+ * hda_dsp_get_stream_llp - Retrieve the LLP (Linear Link 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_llp(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 llp_l, llp_u;
+
+ /*
+ * The pplc_addr have been calculated during probe in
+ * hda_dsp_stream_init():
+ * pplc_addr = sdev->bar[HDA_DSP_PP_BAR] +
+ * SOF_HDA_PPLC_BASE +
+ * SOF_HDA_PPLC_MULTI * total_stream +
+ * SOF_HDA_PPLC_INTERVAL * stream_index
+ *
+ * Use this pre-calculated address to avoid repeated re-calculation.
+ */
+ llp_l = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPL);
+ llp_u = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPU);
+
+ /* Compensate the LLP counter with the saved offset */
+ if (hext_stream->pplcllpl || hext_stream->pplcllpu)
+ return merge_u64(llp_u, llp_l) -
+ merge_u64(hext_stream->pplcllpu, hext_stream->pplcllpl);
+
+ return merge_u64(llp_u, 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;
+}
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index b36eb7c78913..81a1d4606d3c 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -662,6 +662,12 @@ bool hda_dsp_check_stream_irq(struct snd_sof_dev *sdev);
snd_pcm_uframes_t hda_dsp_stream_get_position(struct hdac_stream *hstream,
int direction, bool can_sleep);
+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);
diff --git a/sound/soc/sof/intel/lnl.c b/sound/soc/sof/intel/lnl.c
index 7ae017a00184..d1c73d407e68 100644
--- a/sound/soc/sof/intel/lnl.c
+++ b/sound/soc/sof/intel/lnl.c
@@ -134,8 +134,6 @@ int sof_lnl_ops_init(struct snd_sof_dev *sdev)
sof_lnl_ops.runtime_resume = lnl_hda_dsp_runtime_resume;
}
- sof_lnl_ops.get_stream_position = mtl_dsp_get_stream_hda_link_position;
-
/* dsp core get/put */
sof_lnl_ops.core_get = mtl_dsp_core_get;
sof_lnl_ops.core_put = mtl_dsp_core_put;
diff --git a/sound/soc/sof/intel/mtl.c b/sound/soc/sof/intel/mtl.c
index df05dc77b8d5..060c34988e90 100644
--- a/sound/soc/sof/intel/mtl.c
+++ b/sound/soc/sof/intel/mtl.c
@@ -626,18 +626,6 @@ static int mtl_dsp_disable_interrupts(struct snd_sof_dev *sdev)
return mtl_enable_interrupts(sdev, false);
}
-u64 mtl_dsp_get_stream_hda_link_position(struct snd_sof_dev *sdev,
- struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
-{
- struct hdac_stream *hstream = substream->runtime->private_data;
- u32 llp_l, llp_u;
-
- llp_l = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, MTL_PPLCLLPL(hstream->index));
- llp_u = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, MTL_PPLCLLPU(hstream->index));
- return ((u64)llp_u << 32) | llp_l;
-}
-
int mtl_dsp_core_get(struct snd_sof_dev *sdev, int core)
{
const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;
@@ -707,8 +695,6 @@ int sof_mtl_ops_init(struct snd_sof_dev *sdev)
sof_mtl_ops.core_get = mtl_dsp_core_get;
sof_mtl_ops.core_put = mtl_dsp_core_put;
- sof_mtl_ops.get_stream_position = mtl_dsp_get_stream_hda_link_position;
-
sdev->private = kzalloc(sizeof(struct sof_ipc4_fw_data), GFP_KERNEL);
if (!sdev->private)
return -ENOMEM;
diff --git a/sound/soc/sof/intel/mtl.h b/sound/soc/sof/intel/mtl.h
index cc5a1f46fd09..ea8c1b83f712 100644
--- a/sound/soc/sof/intel/mtl.h
+++ b/sound/soc/sof/intel/mtl.h
@@ -6,12 +6,6 @@
* Copyright(c) 2020-2022 Intel Corporation. All rights reserved.
*/
-/* HDA Registers */
-#define MTL_PPLCLLPL_BASE 0x948
-#define MTL_PPLCLLPU_STRIDE 0x10
-#define MTL_PPLCLLPL(x) (MTL_PPLCLLPL_BASE + (x) * MTL_PPLCLLPU_STRIDE)
-#define MTL_PPLCLLPU(x) (MTL_PPLCLLPL_BASE + 0x4 + (x) * MTL_PPLCLLPU_STRIDE)
-
/* DSP Registers */
#define MTL_HFDSSCS 0x1000
#define MTL_HFDSSCS_SPA_MASK BIT(16)
@@ -103,9 +97,5 @@ int mtl_dsp_ipc_get_window_offset(struct snd_sof_dev *sdev, u32 id);
void mtl_ipc_dump(struct snd_sof_dev *sdev);
-u64 mtl_dsp_get_stream_hda_link_position(struct snd_sof_dev *sdev,
- struct snd_soc_component *component,
- struct snd_pcm_substream *substream);
-
int mtl_dsp_core_get(struct snd_sof_dev *sdev, int core);
int mtl_dsp_core_put(struct snd_sof_dev *sdev, int core);
diff --git a/sound/soc/sof/ipc4-pcm.c b/sound/soc/sof/ipc4-pcm.c
index 0f332c8cdbe6..e915f9f87a6c 100644
--- a/sound/soc/sof/ipc4-pcm.c
+++ b/sound/soc/sof/ipc4-pcm.c
@@ -15,6 +15,28 @@
#include "ipc4-topology.h"
#include "ipc4-fw-reg.h"
+/**
+ * struct sof_ipc4_timestamp_info - IPC4 timestamp info
+ * @host_copier: the host copier of the pcm stream
+ * @dai_copier: the dai copier of the pcm stream
+ * @stream_start_offset: reported by fw in memory window (converted to frames)
+ * @stream_end_offset: reported by fw in memory window (converted to frames)
+ * @llp_offset: llp offset in memory window
+ * @boundary: wrap boundary should be used for the LLP frame counter
+ * @delay: Calculated and stored in pointer callback. The stored value is
+ * returned in the delay callback.
+ */
+struct sof_ipc4_timestamp_info {
+ struct sof_ipc4_copier *host_copier;
+ struct sof_ipc4_copier *dai_copier;
+ u64 stream_start_offset;
+ u64 stream_end_offset;
+ u32 llp_offset;
+
+ u64 boundary;
+ snd_pcm_sframes_t delay;
+};
+
static int sof_ipc4_set_multi_pipeline_state(struct snd_sof_dev *sdev, u32 state,
struct ipc4_pipeline_set_state_data *trigger_list)
{
@@ -423,8 +445,19 @@ static int sof_ipc4_trigger_pipelines(struct snd_soc_component *component,
}
/* return if this is the final state */
- if (state == SOF_IPC4_PIPE_PAUSED)
+ if (state == SOF_IPC4_PIPE_PAUSED) {
+ struct sof_ipc4_timestamp_info *time_info;
+
+ /*
+ * Invalidate the stream_start_offset to make sure that it is
+ * going to be updated if the stream resumes
+ */
+ time_info = spcm->stream[substream->stream].private;
+ if (time_info)
+ time_info->stream_start_offset = SOF_IPC4_INVALID_STREAM_POSITION;
+
goto free;
+ }
skip_pause_transition:
/* else set the RUNNING/RESET state in the DSP */
ret = sof_ipc4_set_multi_pipeline_state(sdev, state, trigger_list);
@@ -464,14 +497,12 @@ static int sof_ipc4_pcm_trigger(struct snd_soc_component *component,
/* determine the pipeline state */
switch (cmd) {
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- state = SOF_IPC4_PIPE_PAUSED;
- break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_START:
state = SOF_IPC4_PIPE_RUNNING;
break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
state = SOF_IPC4_PIPE_PAUSED;
@@ -703,6 +734,10 @@ static int sof_ipc4_pcm_setup(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm
if (abi_version < SOF_IPC4_FW_REGS_ABI_VER)
support_info = false;
+ /* For delay reporting the get_host_byte_counter callback is needed */
+ if (!sof_ops(sdev) || !sof_ops(sdev)->get_host_byte_counter)
+ support_info = false;
+
for_each_pcm_streams(stream) {
pipeline_list = &spcm->stream[stream].pipeline_list;
@@ -835,7 +870,6 @@ static int sof_ipc4_get_stream_start_offset(struct snd_sof_dev *sdev,
struct sof_ipc4_copier *host_copier = time_info->host_copier;
struct sof_ipc4_copier *dai_copier = time_info->dai_copier;
struct sof_ipc4_pipeline_registers ppl_reg;
- u64 stream_start_position;
u32 dai_sample_size;
u32 ch, node_index;
u32 offset;
@@ -852,38 +886,51 @@ static int sof_ipc4_get_stream_start_offset(struct snd_sof_dev *sdev,
if (ppl_reg.stream_start_offset == SOF_IPC4_INVALID_STREAM_POSITION)
return -EINVAL;
- stream_start_position = ppl_reg.stream_start_offset;
ch = dai_copier->data.out_format.fmt_cfg;
ch = SOF_IPC4_AUDIO_FORMAT_CFG_CHANNELS_COUNT(ch);
dai_sample_size = (dai_copier->data.out_format.bit_depth >> 3) * ch;
- /* convert offset to sample count */
- do_div(stream_start_position, dai_sample_size);
- time_info->stream_start_offset = stream_start_position;
+
+ /* convert offsets to frame count */
+ time_info->stream_start_offset = ppl_reg.stream_start_offset;
+ do_div(time_info->stream_start_offset, dai_sample_size);
+ time_info->stream_end_offset = ppl_reg.stream_end_offset;
+ do_div(time_info->stream_end_offset, dai_sample_size);
+
+ /*
+ * Calculate the wrap boundary need to be used for delay calculation
+ * The host counter is in bytes, it will wrap earlier than the frames
+ * based link counter.
+ */
+ time_info->boundary = div64_u64(~((u64)0),
+ frames_to_bytes(substream->runtime, 1));
+ /* Initialize the delay value to 0 (no delay) */
+ time_info->delay = 0;
return 0;
}
-static snd_pcm_sframes_t sof_ipc4_pcm_delay(struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
+static int sof_ipc4_pcm_pointer(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t *pointer)
{
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct sof_ipc4_timestamp_info *time_info;
struct sof_ipc4_llp_reading_slot llp;
- snd_pcm_uframes_t head_ptr, tail_ptr;
+ snd_pcm_uframes_t head_cnt, tail_cnt;
struct snd_sof_pcm_stream *stream;
+ u64 dai_cnt, host_cnt, host_ptr;
struct snd_sof_pcm *spcm;
- u64 tmp_ptr;
int ret;
spcm = snd_sof_find_spcm_dai(component, rtd);
if (!spcm)
- return 0;
+ return -EOPNOTSUPP;
stream = &spcm->stream[substream->stream];
time_info = stream->private;
if (!time_info)
- return 0;
+ return -EOPNOTSUPP;
/*
* stream_start_offset is updated to memory window by FW based on
@@ -893,45 +940,116 @@ static snd_pcm_sframes_t sof_ipc4_pcm_delay(struct snd_soc_component *component,
if (time_info->stream_start_offset == SOF_IPC4_INVALID_STREAM_POSITION) {
ret = sof_ipc4_get_stream_start_offset(sdev, substream, stream, time_info);
if (ret < 0)
- return 0;
+ return -EOPNOTSUPP;
}
+ /* For delay calculation we need the host counter */
+ host_cnt = snd_sof_pcm_get_host_byte_counter(sdev, component, substream);
+ host_ptr = host_cnt;
+
+ /* convert the host_cnt to frames */
+ host_cnt = div64_u64(host_cnt, frames_to_bytes(substream->runtime, 1));
+
/*
- * HDaudio links don't support the LLP counter reported by firmware
- * the link position is read directly from hardware registers.
+ * If the LLP counter is not reported by firmware in the SRAM window
+ * then read the dai (link) counter via host accessible means if
+ * available.
*/
if (!time_info->llp_offset) {
- tmp_ptr = snd_sof_pcm_get_stream_position(sdev, component, substream);
- if (!tmp_ptr)
- return 0;
+ dai_cnt = snd_sof_pcm_get_dai_frame_counter(sdev, component, substream);
+ if (!dai_cnt)
+ return -EOPNOTSUPP;
} else {
sof_mailbox_read(sdev, time_info->llp_offset, &llp, sizeof(llp));
- tmp_ptr = ((u64)llp.reading.llp_u << 32) | llp.reading.llp_l;
+ dai_cnt = ((u64)llp.reading.llp_u << 32) | llp.reading.llp_l;
}
+ dai_cnt += time_info->stream_end_offset;
- /* In two cases dai dma position is not accurate
+ /* In two cases dai dma counter is not accurate
* (1) dai pipeline is started before host pipeline
- * (2) multiple streams mixed into one. Each stream has the same dai dma position
+ * (2) multiple streams mixed into one. Each stream has the same dai dma
+ * counter
*
- * Firmware calculates correct stream_start_offset for all cases including above two.
- * Driver subtracts stream_start_offset from dai dma position to get accurate one
+ * Firmware calculates correct stream_start_offset for all cases
+ * including above two.
+ * Driver subtracts stream_start_offset from dai dma counter to get
+ * accurate one
*/
- tmp_ptr -= time_info->stream_start_offset;
- /* Calculate the delay taking into account that both pointer can wrap */
- div64_u64_rem(tmp_ptr, substream->runtime->boundary, &tmp_ptr);
+ /*
+ * On stream start the dai counter might not yet have reached the
+ * stream_start_offset value which means that no frames have left the
+ * DSP yet from the audio stream (on playback, capture streams have
+ * offset of 0 as we start capturing right away).
+ * In this case we need to adjust the distance between the counters by
+ * increasing the host counter by (offset - dai_counter).
+ * Otherwise the dai_counter needs to be adjusted to reflect the number
+ * of valid frames passed on the DAI side.
+ *
+ * The delay is the difference between the counters on the two
+ * sides of the DSP.
+ */
+ if (dai_cnt < time_info->stream_start_offset) {
+ host_cnt += time_info->stream_start_offset - dai_cnt;
+ dai_cnt = 0;
+ } else {
+ dai_cnt -= time_info->stream_start_offset;
+ }
+
+ /* Wrap the dai counter at the boundary where the host counter wraps */
+ div64_u64_rem(dai_cnt, time_info->boundary, &dai_cnt);
+
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- head_ptr = substream->runtime->status->hw_ptr;
- tail_ptr = tmp_ptr;
+ head_cnt = host_cnt;
+ tail_cnt = dai_cnt;
} else {
- head_ptr = tmp_ptr;
- tail_ptr = substream->runtime->status->hw_ptr;
+ head_cnt = dai_cnt;
+ tail_cnt = host_cnt;
+ }
+
+ if (head_cnt < tail_cnt) {
+ time_info->delay = time_info->boundary - tail_cnt + head_cnt;
+ goto out;
}
- if (head_ptr < tail_ptr)
- return substream->runtime->boundary - tail_ptr + head_ptr;
+ time_info->delay = head_cnt - tail_cnt;
+
+out:
+ /*
+ * Convert the host byte counter to PCM pointer which wraps in buffer
+ * and it is in frames
+ */
+ div64_u64_rem(host_ptr, snd_pcm_lib_buffer_bytes(substream), &host_ptr);
+ *pointer = bytes_to_frames(substream->runtime, host_ptr);
+
+ return 0;
+}
+
+static snd_pcm_sframes_t sof_ipc4_pcm_delay(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct sof_ipc4_timestamp_info *time_info;
+ struct snd_sof_pcm_stream *stream;
+ struct snd_sof_pcm *spcm;
+
+ spcm = snd_sof_find_spcm_dai(component, rtd);
+ if (!spcm)
+ return 0;
+
+ stream = &spcm->stream[substream->stream];
+ time_info = stream->private;
+ /*
+ * Report the stored delay value calculated in the pointer callback.
+ * In the unlikely event that the calculation was skipped/aborted, the
+ * default 0 delay returned.
+ */
+ if (time_info)
+ return time_info->delay;
+
+ /* No delay information available, report 0 as delay */
+ return 0;
- return head_ptr - tail_ptr;
}
const struct sof_ipc_pcm_ops ipc4_pcm_ops = {
@@ -941,6 +1059,7 @@ const struct sof_ipc_pcm_ops ipc4_pcm_ops = {
.dai_link_fixup = sof_ipc4_pcm_dai_link_fixup,
.pcm_setup = sof_ipc4_pcm_setup,
.pcm_free = sof_ipc4_pcm_free,
+ .pointer = sof_ipc4_pcm_pointer,
.delay = sof_ipc4_pcm_delay,
.ipc_first_on_start = true,
.platform_stop_during_hw_free = true,
diff --git a/sound/soc/sof/ipc4-priv.h b/sound/soc/sof/ipc4-priv.h
index f3b908b093f9..afed618a15f0 100644
--- a/sound/soc/sof/ipc4-priv.h
+++ b/sound/soc/sof/ipc4-priv.h
@@ -92,20 +92,6 @@ struct sof_ipc4_fw_data {
struct mutex pipeline_state_mutex; /* protect pipeline triggers, ref counts and states */
};
-/**
- * struct sof_ipc4_timestamp_info - IPC4 timestamp info
- * @host_copier: the host copier of the pcm stream
- * @dai_copier: the dai copier of the pcm stream
- * @stream_start_offset: reported by fw in memory window
- * @llp_offset: llp offset in memory window
- */
-struct sof_ipc4_timestamp_info {
- struct sof_ipc4_copier *host_copier;
- struct sof_ipc4_copier *dai_copier;
- u64 stream_start_offset;
- u32 llp_offset;
-};
-
extern const struct sof_ipc_fw_loader_ops ipc4_loader_ops;
extern const struct sof_ipc_tplg_ops ipc4_tplg_ops;
extern const struct sof_ipc_tplg_control_ops tplg_ipc4_control_ops;
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index da4a83afb87a..bb4cf6dd1e18 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -412,8 +412,9 @@ static int sof_ipc4_widget_setup_pcm(struct snd_sof_widget *swidget)
struct sof_ipc4_available_audio_format *available_fmt;
struct snd_soc_component *scomp = swidget->scomp;
struct sof_ipc4_copier *ipc4_copier;
+ struct snd_sof_pcm *spcm;
int node_type = 0;
- int ret;
+ int ret, dir;
ipc4_copier = kzalloc(sizeof(*ipc4_copier), GFP_KERNEL);
if (!ipc4_copier)
@@ -447,6 +448,25 @@ static int sof_ipc4_widget_setup_pcm(struct snd_sof_widget *swidget)
}
dev_dbg(scomp->dev, "host copier '%s' node_type %u\n", swidget->widget->name, node_type);
+ spcm = snd_sof_find_spcm_comp(scomp, swidget->comp_id, &dir);
+ if (!spcm)
+ goto skip_gtw_cfg;
+
+ if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+ struct snd_sof_pcm_stream *sps = &spcm->stream[dir];
+
+ sof_update_ipc_object(scomp, &sps->dsp_max_burst_size_in_ms,
+ SOF_COPIER_DEEP_BUFFER_TOKENS,
+ swidget->tuples,
+ swidget->num_tuples, sizeof(u32), 1);
+ /* Set default DMA buffer size if it is not specified in topology */
+ if (!sps->dsp_max_burst_size_in_ms)
+ sps->dsp_max_burst_size_in_ms = SOF_IPC4_MIN_DMA_BUFFER_SIZE;
+ } else {
+ /* Capture data is copied from DSP to host in 1ms bursts */
+ spcm->stream[dir].dsp_max_burst_size_in_ms = 1;
+ }
+
skip_gtw_cfg:
ipc4_copier->gtw_attr = kzalloc(sizeof(*ipc4_copier->gtw_attr), GFP_KERNEL);
if (!ipc4_copier->gtw_attr) {
diff --git a/sound/soc/sof/ops.h b/sound/soc/sof/ops.h
index 6cf21e829e07..3cd748e13460 100644
--- a/sound/soc/sof/ops.h
+++ b/sound/soc/sof/ops.h
@@ -523,12 +523,26 @@ static inline int snd_sof_pcm_platform_ack(struct snd_sof_dev *sdev,
return 0;
}
-static inline u64 snd_sof_pcm_get_stream_position(struct snd_sof_dev *sdev,
- struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
+static inline u64
+snd_sof_pcm_get_dai_frame_counter(struct snd_sof_dev *sdev,
+ struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
{
- if (sof_ops(sdev) && sof_ops(sdev)->get_stream_position)
- return sof_ops(sdev)->get_stream_position(sdev, component, substream);
+ if (sof_ops(sdev) && sof_ops(sdev)->get_dai_frame_counter)
+ return sof_ops(sdev)->get_dai_frame_counter(sdev, component,
+ substream);
+
+ return 0;
+}
+
+static inline u64
+snd_sof_pcm_get_host_byte_counter(struct snd_sof_dev *sdev,
+ struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ if (sof_ops(sdev) && sof_ops(sdev)->get_host_byte_counter)
+ return sof_ops(sdev)->get_host_byte_counter(sdev, component,
+ substream);
return 0;
}
diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index 33d576b17647..f03cee94bce6 100644
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -388,13 +388,21 @@ static snd_pcm_uframes_t sof_pcm_pointer(struct snd_soc_component *component,
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
+ const struct sof_ipc_pcm_ops *pcm_ops = sof_ipc_get_ops(sdev, pcm);
struct snd_sof_pcm *spcm;
snd_pcm_uframes_t host, dai;
+ int ret = -EOPNOTSUPP;
/* nothing to do for BE */
if (rtd->dai_link->no_pcm)
return 0;
+ if (pcm_ops && pcm_ops->pointer)
+ ret = pcm_ops->pointer(component, substream, &host);
+
+ if (ret != -EOPNOTSUPP)
+ return ret ? ret : host;
+
/* use dsp ops pointer callback directly if set */
if (sof_ops(sdev)->pcm_pointer)
return sof_ops(sdev)->pcm_pointer(sdev, substream);
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h
index 9ea2ac5adac7..86bbb531e142 100644
--- a/sound/soc/sof/sof-audio.h
+++ b/sound/soc/sof/sof-audio.h
@@ -103,7 +103,10 @@ struct snd_sof_dai_config_data {
* additional memory in the SOF PCM stream structure
* @pcm_free: Function pointer for PCM free that can be used for freeing any
* additional memory in the SOF PCM stream structure
- * @delay: Function pointer for pcm delay calculation
+ * @pointer: Function pointer for pcm pointer
+ * Note: the @pointer callback may return -EOPNOTSUPP which should be
+ * handled in a same way as if the callback is not provided
+ * @delay: Function pointer for pcm delay reporting
* @reset_hw_params_during_stop: Flag indicating whether the hw_params should be reset during the
* STOP pcm trigger
* @ipc_first_on_start: Send IPC before invoking platform trigger during
@@ -124,6 +127,9 @@ struct sof_ipc_pcm_ops {
int (*dai_link_fixup)(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params);
int (*pcm_setup)(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm);
void (*pcm_free)(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm);
+ int (*pointer)(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t *pointer);
snd_pcm_sframes_t (*delay)(struct snd_soc_component *component,
struct snd_pcm_substream *substream);
bool reset_hw_params_during_stop;
@@ -322,6 +328,7 @@ struct snd_sof_pcm_stream {
struct work_struct period_elapsed_work;
struct snd_soc_dapm_widget_list *list; /* list of connected DAPM widgets */
bool d0i3_compatible; /* DSP can be in D0I3 when this pcm is opened */
+ unsigned int dsp_max_burst_size_in_ms; /* The maximum size of the host DMA burst in ms */
/*
* flag to indicate that the DSP pipelines should be kept
* active or not while suspending the stream
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index d453a4ce3b21..d3c436f82604 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -262,13 +262,25 @@ struct snd_sof_dsp_ops {
int (*pcm_ack)(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream); /* optional */
/*
- * optional callback to retrieve the link DMA position for the substream
- * when the position is not reported in the shared SRAM windows but
- * instead from a host-accessible hardware counter.
+ * optional callback to retrieve the number of frames left/arrived from/to
+ * the DSP on the DAI side (link/codec/DMIC/etc).
+ *
+ * The callback is used when the firmware does not provide this information
+ * via the shared SRAM window and it can be retrieved by host.
*/
- u64 (*get_stream_position)(struct snd_sof_dev *sdev,
- struct snd_soc_component *component,
- struct snd_pcm_substream *substream); /* optional */
+ u64 (*get_dai_frame_counter)(struct snd_sof_dev *sdev,
+ struct snd_soc_component *component,
+ struct snd_pcm_substream *substream); /* optional */
+
+ /*
+ * Optional callback to retrieve the number of bytes left/arrived from/to
+ * the DSP on the host side (bytes between host ALSA buffer and DSP).
+ *
+ * The callback is needed for ALSA delay reporting.
+ */
+ u64 (*get_host_byte_counter)(struct snd_sof_dev *sdev,
+ struct snd_soc_component *component,
+ struct snd_pcm_substream *substream); /* optional */
/* host read DSP stream data */
int (*ipc_msg_data)(struct snd_sof_dev *sdev,
generated by cgit (git 2.34.1) at 2024-05-23 15:32:23 +0000