387 lines
11 KiB
C
387 lines
11 KiB
C
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
|
|
//
|
|
// Copyright 2021 NXP
|
|
//
|
|
// Author: Daniel Baluta <daniel.baluta@nxp.com>
|
|
|
|
#include <sound/soc.h>
|
|
#include <sound/sof.h>
|
|
#include <sound/compress_driver.h>
|
|
#include "sof-audio.h"
|
|
#include "sof-priv.h"
|
|
#include "sof-utils.h"
|
|
|
|
static void sof_set_transferred_bytes(struct sof_compr_stream *sstream,
|
|
u64 host_pos, u64 buffer_size)
|
|
{
|
|
u64 prev_pos;
|
|
unsigned int copied;
|
|
|
|
div64_u64_rem(sstream->copied_total, buffer_size, &prev_pos);
|
|
|
|
if (host_pos < prev_pos)
|
|
copied = (buffer_size - prev_pos) + host_pos;
|
|
else
|
|
copied = host_pos - prev_pos;
|
|
|
|
sstream->copied_total += copied;
|
|
}
|
|
|
|
static void snd_sof_compr_fragment_elapsed_work(struct work_struct *work)
|
|
{
|
|
struct snd_sof_pcm_stream *sps =
|
|
container_of(work, struct snd_sof_pcm_stream,
|
|
period_elapsed_work);
|
|
|
|
snd_compr_fragment_elapsed(sps->cstream);
|
|
}
|
|
|
|
void snd_sof_compr_init_elapsed_work(struct work_struct *work)
|
|
{
|
|
INIT_WORK(work, snd_sof_compr_fragment_elapsed_work);
|
|
}
|
|
|
|
/*
|
|
* sof compr fragment elapse, this could be called in irq thread context
|
|
*/
|
|
void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd;
|
|
struct snd_compr_runtime *crtd;
|
|
struct snd_soc_component *component;
|
|
struct sof_compr_stream *sstream;
|
|
struct snd_sof_pcm *spcm;
|
|
|
|
if (!cstream)
|
|
return;
|
|
|
|
rtd = cstream->private_data;
|
|
crtd = cstream->runtime;
|
|
sstream = crtd->private_data;
|
|
component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
|
|
|
|
spcm = snd_sof_find_spcm_dai(component, rtd);
|
|
if (!spcm) {
|
|
dev_err(component->dev,
|
|
"fragment elapsed called for unknown stream!\n");
|
|
return;
|
|
}
|
|
|
|
sof_set_transferred_bytes(sstream, spcm->stream[cstream->direction].posn.host_posn,
|
|
crtd->buffer_size);
|
|
|
|
/* use the same workqueue-based solution as for PCM, cf. snd_sof_pcm_elapsed */
|
|
schedule_work(&spcm->stream[cstream->direction].period_elapsed_work);
|
|
}
|
|
|
|
static int create_page_table(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream,
|
|
unsigned char *dma_area, size_t size)
|
|
{
|
|
struct snd_dma_buffer *dmab = cstream->runtime->dma_buffer_p;
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
int dir = cstream->direction;
|
|
struct snd_sof_pcm *spcm;
|
|
|
|
spcm = snd_sof_find_spcm_dai(component, rtd);
|
|
if (!spcm)
|
|
return -EINVAL;
|
|
|
|
return snd_sof_create_page_table(component->dev, dmab,
|
|
spcm->stream[dir].page_table.area, size);
|
|
}
|
|
|
|
static int sof_compr_open(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
struct snd_compr_runtime *crtd = cstream->runtime;
|
|
struct sof_compr_stream *sstream;
|
|
struct snd_sof_pcm *spcm;
|
|
int dir;
|
|
|
|
sstream = kzalloc(sizeof(*sstream), GFP_KERNEL);
|
|
if (!sstream)
|
|
return -ENOMEM;
|
|
|
|
spcm = snd_sof_find_spcm_dai(component, rtd);
|
|
if (!spcm) {
|
|
kfree(sstream);
|
|
return -EINVAL;
|
|
}
|
|
|
|
dir = cstream->direction;
|
|
|
|
if (spcm->stream[dir].cstream) {
|
|
kfree(sstream);
|
|
return -EBUSY;
|
|
}
|
|
|
|
spcm->stream[dir].cstream = cstream;
|
|
spcm->stream[dir].posn.host_posn = 0;
|
|
spcm->stream[dir].posn.dai_posn = 0;
|
|
spcm->prepared[dir] = false;
|
|
|
|
crtd->private_data = sstream;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sof_compr_free(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream)
|
|
{
|
|
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
|
|
struct sof_compr_stream *sstream = cstream->runtime->private_data;
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
struct sof_ipc_stream stream;
|
|
struct sof_ipc_reply reply;
|
|
struct snd_sof_pcm *spcm;
|
|
int ret = 0;
|
|
|
|
spcm = snd_sof_find_spcm_dai(component, rtd);
|
|
if (!spcm)
|
|
return -EINVAL;
|
|
|
|
stream.hdr.size = sizeof(stream);
|
|
stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
|
|
stream.comp_id = spcm->stream[cstream->direction].comp_id;
|
|
|
|
if (spcm->prepared[cstream->direction]) {
|
|
ret = sof_ipc_tx_message(sdev->ipc, &stream, sizeof(stream),
|
|
&reply, sizeof(reply));
|
|
if (!ret)
|
|
spcm->prepared[cstream->direction] = false;
|
|
}
|
|
|
|
cancel_work_sync(&spcm->stream[cstream->direction].period_elapsed_work);
|
|
spcm->stream[cstream->direction].cstream = NULL;
|
|
kfree(sstream);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int sof_compr_set_params(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream, struct snd_compr_params *params)
|
|
{
|
|
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
struct snd_compr_runtime *crtd = cstream->runtime;
|
|
struct sof_ipc_pcm_params_reply ipc_params_reply;
|
|
struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
|
|
struct sof_ipc_fw_version *v = &ready->version;
|
|
struct sof_compr_stream *sstream;
|
|
struct sof_ipc_pcm_params *pcm;
|
|
struct snd_sof_pcm *spcm;
|
|
size_t ext_data_size;
|
|
int ret;
|
|
|
|
if (v->abi_version < SOF_ABI_VER(3, 22, 0)) {
|
|
dev_err(component->dev,
|
|
"Compress params not supported with FW ABI version %d:%d:%d\n",
|
|
SOF_ABI_VERSION_MAJOR(v->abi_version),
|
|
SOF_ABI_VERSION_MINOR(v->abi_version),
|
|
SOF_ABI_VERSION_PATCH(v->abi_version));
|
|
return -EINVAL;
|
|
}
|
|
|
|
sstream = crtd->private_data;
|
|
|
|
spcm = snd_sof_find_spcm_dai(component, rtd);
|
|
|
|
if (!spcm)
|
|
return -EINVAL;
|
|
|
|
ext_data_size = sizeof(params->codec);
|
|
|
|
if (sizeof(*pcm) + ext_data_size > sdev->ipc->max_payload_size)
|
|
return -EINVAL;
|
|
|
|
pcm = kzalloc(sizeof(*pcm) + ext_data_size, GFP_KERNEL);
|
|
if (!pcm)
|
|
return -ENOMEM;
|
|
|
|
cstream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_SG;
|
|
cstream->dma_buffer.dev.dev = sdev->dev;
|
|
ret = snd_compr_malloc_pages(cstream, crtd->buffer_size);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = create_page_table(component, cstream, crtd->dma_area, crtd->dma_bytes);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
pcm->params.buffer.pages = PFN_UP(crtd->dma_bytes);
|
|
pcm->hdr.size = sizeof(*pcm) + ext_data_size;
|
|
pcm->hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS;
|
|
|
|
pcm->comp_id = spcm->stream[cstream->direction].comp_id;
|
|
pcm->params.hdr.size = sizeof(pcm->params) + ext_data_size;
|
|
pcm->params.buffer.phy_addr = spcm->stream[cstream->direction].page_table.addr;
|
|
pcm->params.buffer.size = crtd->dma_bytes;
|
|
pcm->params.direction = cstream->direction;
|
|
pcm->params.channels = params->codec.ch_out;
|
|
pcm->params.rate = params->codec.sample_rate;
|
|
pcm->params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED;
|
|
pcm->params.frame_fmt = SOF_IPC_FRAME_S32_LE;
|
|
pcm->params.sample_container_bytes =
|
|
snd_pcm_format_physical_width(SNDRV_PCM_FORMAT_S32) >> 3;
|
|
pcm->params.host_period_bytes = params->buffer.fragment_size;
|
|
pcm->params.ext_data_length = ext_data_size;
|
|
|
|
memcpy((u8 *)pcm->params.ext_data, ¶ms->codec, ext_data_size);
|
|
|
|
ret = sof_ipc_tx_message(sdev->ipc, pcm, sizeof(*pcm) + ext_data_size,
|
|
&ipc_params_reply, sizeof(ipc_params_reply));
|
|
if (ret < 0) {
|
|
dev_err(component->dev, "error ipc failed\n");
|
|
goto out;
|
|
}
|
|
|
|
sstream->sampling_rate = params->codec.sample_rate;
|
|
sstream->channels = params->codec.ch_out;
|
|
sstream->sample_container_bytes = pcm->params.sample_container_bytes;
|
|
|
|
spcm->prepared[cstream->direction] = true;
|
|
|
|
out:
|
|
kfree(pcm);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int sof_compr_get_params(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream, struct snd_codec *params)
|
|
{
|
|
/* TODO: we don't query the supported codecs for now, if the
|
|
* application asks for an unsupported codec the set_params() will fail.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
static int sof_compr_trigger(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream, int cmd)
|
|
{
|
|
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
struct sof_ipc_stream stream;
|
|
struct sof_ipc_reply reply;
|
|
struct snd_sof_pcm *spcm;
|
|
|
|
spcm = snd_sof_find_spcm_dai(component, rtd);
|
|
if (!spcm)
|
|
return -EINVAL;
|
|
|
|
stream.hdr.size = sizeof(stream);
|
|
stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG;
|
|
stream.comp_id = spcm->stream[cstream->direction].comp_id;
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
|
stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_PAUSE;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
|
|
stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE;
|
|
break;
|
|
default:
|
|
dev_err(component->dev, "error: unhandled trigger cmd %d\n", cmd);
|
|
break;
|
|
}
|
|
|
|
return sof_ipc_tx_message(sdev->ipc, &stream, sizeof(stream),
|
|
&reply, sizeof(reply));
|
|
}
|
|
|
|
static int sof_compr_copy_playback(struct snd_compr_runtime *rtd,
|
|
char __user *buf, size_t count)
|
|
{
|
|
void *ptr;
|
|
unsigned int offset, n;
|
|
int ret;
|
|
|
|
div_u64_rem(rtd->total_bytes_available, rtd->buffer_size, &offset);
|
|
ptr = rtd->dma_area + offset;
|
|
n = rtd->buffer_size - offset;
|
|
|
|
if (count < n) {
|
|
ret = copy_from_user(ptr, buf, count);
|
|
} else {
|
|
ret = copy_from_user(ptr, buf, n);
|
|
ret += copy_from_user(rtd->dma_area, buf + n, count - n);
|
|
}
|
|
|
|
return count - ret;
|
|
}
|
|
|
|
static int sof_compr_copy_capture(struct snd_compr_runtime *rtd,
|
|
char __user *buf, size_t count)
|
|
{
|
|
void *ptr;
|
|
unsigned int offset, n;
|
|
int ret;
|
|
|
|
div_u64_rem(rtd->total_bytes_transferred, rtd->buffer_size, &offset);
|
|
ptr = rtd->dma_area + offset;
|
|
n = rtd->buffer_size - offset;
|
|
|
|
if (count < n) {
|
|
ret = copy_to_user(buf, ptr, count);
|
|
} else {
|
|
ret = copy_to_user(buf, ptr, n);
|
|
ret += copy_to_user(buf + n, rtd->dma_area, count - n);
|
|
}
|
|
|
|
return count - ret;
|
|
}
|
|
|
|
static int sof_compr_copy(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream,
|
|
char __user *buf, size_t count)
|
|
{
|
|
struct snd_compr_runtime *rtd = cstream->runtime;
|
|
|
|
if (count > rtd->buffer_size)
|
|
count = rtd->buffer_size;
|
|
|
|
if (cstream->direction == SND_COMPRESS_PLAYBACK)
|
|
return sof_compr_copy_playback(rtd, buf, count);
|
|
else
|
|
return sof_compr_copy_capture(rtd, buf, count);
|
|
}
|
|
|
|
static int sof_compr_pointer(struct snd_soc_component *component,
|
|
struct snd_compr_stream *cstream,
|
|
struct snd_compr_tstamp *tstamp)
|
|
{
|
|
struct snd_sof_pcm *spcm;
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
struct sof_compr_stream *sstream = cstream->runtime->private_data;
|
|
|
|
spcm = snd_sof_find_spcm_dai(component, rtd);
|
|
if (!spcm)
|
|
return -EINVAL;
|
|
|
|
tstamp->sampling_rate = sstream->sampling_rate;
|
|
tstamp->copied_total = sstream->copied_total;
|
|
tstamp->pcm_io_frames = div_u64(spcm->stream[cstream->direction].posn.dai_posn,
|
|
sstream->channels * sstream->sample_container_bytes);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct snd_compress_ops sof_compressed_ops = {
|
|
.open = sof_compr_open,
|
|
.free = sof_compr_free,
|
|
.set_params = sof_compr_set_params,
|
|
.get_params = sof_compr_get_params,
|
|
.trigger = sof_compr_trigger,
|
|
.pointer = sof_compr_pointer,
|
|
.copy = sof_compr_copy,
|
|
};
|
|
EXPORT_SYMBOL(sof_compressed_ops);
|