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Diffstat (limited to 'sound/soc/intel/baytrail/sst-baytrail-pcm.c')
-rw-r--r--sound/soc/intel/baytrail/sst-baytrail-pcm.c459
1 files changed, 0 insertions, 459 deletions
diff --git a/sound/soc/intel/baytrail/sst-baytrail-pcm.c b/sound/soc/intel/baytrail/sst-baytrail-pcm.c
deleted file mode 100644
index d2cda33b65d5..000000000000
--- a/sound/soc/intel/baytrail/sst-baytrail-pcm.c
+++ /dev/null
@@ -1,459 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Intel Baytrail SST PCM Support
- * Copyright (c) 2014, Intel Corporation.
- */
-
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include "sst-baytrail-ipc.h"
-#include "../common/sst-dsp-priv.h"
-#include "../common/sst-dsp.h"
-
-#define DRV_NAME "byt-dai"
-#define BYT_PCM_COUNT 2
-
-static const struct snd_pcm_hardware sst_byt_pcm_hardware = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_RESUME,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S24_LE,
- .period_bytes_min = 384,
- .period_bytes_max = 48000,
- .periods_min = 2,
- .periods_max = 250,
- .buffer_bytes_max = 96000,
-};
-
-/* private data for each PCM DSP stream */
-struct sst_byt_pcm_data {
- struct sst_byt_stream *stream;
- struct snd_pcm_substream *substream;
- struct mutex mutex;
-
- /* latest DSP DMA hw pointer */
- u32 hw_ptr;
-
- struct work_struct work;
-};
-
-/* private data for the driver */
-struct sst_byt_priv_data {
- /* runtime DSP */
- struct sst_byt *byt;
-
- /* DAI data */
- struct sst_byt_pcm_data pcm[BYT_PCM_COUNT];
-
- /* flag indicating is stream context restore needed after suspend */
- bool restore_stream;
-};
-
-/* this may get called several times by oss emulation */
-static int sst_byt_pcm_hw_params(struct snd_soc_component *component,
- struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component);
- struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream];
- struct sst_byt *byt = pdata->byt;
- u32 rate, bits;
- u8 channels;
- int ret, playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
-
- dev_dbg(rtd->dev, "PCM: hw_params, pcm_data %p\n", pcm_data);
-
- ret = sst_byt_stream_type(byt, pcm_data->stream,
- 1, 1, !playback);
- if (ret < 0) {
- dev_err(rtd->dev, "failed to set stream format %d\n", ret);
- return ret;
- }
-
- rate = params_rate(params);
- ret = sst_byt_stream_set_rate(byt, pcm_data->stream, rate);
- if (ret < 0) {
- dev_err(rtd->dev, "could not set rate %d\n", rate);
- return ret;
- }
-
- bits = snd_pcm_format_width(params_format(params));
- ret = sst_byt_stream_set_bits(byt, pcm_data->stream, bits);
- if (ret < 0) {
- dev_err(rtd->dev, "could not set formats %d\n",
- params_rate(params));
- return ret;
- }
-
- channels = (u8)(params_channels(params) & 0xF);
- ret = sst_byt_stream_set_channels(byt, pcm_data->stream, channels);
- if (ret < 0) {
- dev_err(rtd->dev, "could not set channels %d\n",
- params_rate(params));
- return ret;
- }
-
- ret = sst_byt_stream_buffer(byt, pcm_data->stream,
- substream->dma_buffer.addr,
- params_buffer_bytes(params));
- if (ret < 0) {
- dev_err(rtd->dev, "PCM: failed to set DMA buffer %d\n", ret);
- return ret;
- }
-
- ret = sst_byt_stream_commit(byt, pcm_data->stream);
- if (ret < 0) {
- dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-static int sst_byt_pcm_restore_stream_context(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
- struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component);
- struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream];
- struct sst_byt *byt = pdata->byt;
- int ret;
-
- /* commit stream using existing stream params */
- ret = sst_byt_stream_commit(byt, pcm_data->stream);
- if (ret < 0) {
- dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret);
- return ret;
- }
-
- sst_byt_stream_start(byt, pcm_data->stream, pcm_data->hw_ptr);
-
- dev_dbg(rtd->dev, "stream context restored at offset %d\n",
- pcm_data->hw_ptr);
-
- return 0;
-}
-
-static void sst_byt_pcm_work(struct work_struct *work)
-{
- struct sst_byt_pcm_data *pcm_data =
- container_of(work, struct sst_byt_pcm_data, work);
-
- if (snd_pcm_running(pcm_data->substream))
- sst_byt_pcm_restore_stream_context(pcm_data->substream);
-}
-
-static int sst_byt_pcm_trigger(struct snd_soc_component *component,
- struct snd_pcm_substream *substream, int cmd)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component);
- struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream];
- struct sst_byt *byt = pdata->byt;
-
- dev_dbg(rtd->dev, "PCM: trigger %d\n", cmd);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- pcm_data->hw_ptr = 0;
- sst_byt_stream_start(byt, pcm_data->stream, 0);
- break;
- case SNDRV_PCM_TRIGGER_RESUME:
- if (pdata->restore_stream)
- schedule_work(&pcm_data->work);
- else
- sst_byt_stream_resume(byt, pcm_data->stream);
- break;
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- sst_byt_stream_resume(byt, pcm_data->stream);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- sst_byt_stream_stop(byt, pcm_data->stream);
- break;
- case SNDRV_PCM_TRIGGER_SUSPEND:
- pdata->restore_stream = false;
- fallthrough;
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- sst_byt_stream_pause(byt, pcm_data->stream);
- break;
- default:
- break;
- }
-
- return 0;
-}
-
-static u32 byt_notify_pointer(struct sst_byt_stream *stream, void *data)
-{
- struct sst_byt_pcm_data *pcm_data = data;
- struct snd_pcm_substream *substream = pcm_data->substream;
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
- struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component);
- struct sst_byt *byt = pdata->byt;
- u32 pos, hw_pos;
-
- hw_pos = sst_byt_get_dsp_position(byt, pcm_data->stream,
- snd_pcm_lib_buffer_bytes(substream));
- pcm_data->hw_ptr = hw_pos;
- pos = frames_to_bytes(runtime,
- (runtime->control->appl_ptr %
- runtime->buffer_size));
-
- dev_dbg(rtd->dev, "PCM: App/DMA pointer %u/%u bytes\n", pos, hw_pos);
-
- snd_pcm_period_elapsed(substream);
- return pos;
-}
-
-static snd_pcm_uframes_t sst_byt_pcm_pointer(struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component);
- struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream];
-
- dev_dbg(rtd->dev, "PCM: DMA pointer %u bytes\n", pcm_data->hw_ptr);
-
- return bytes_to_frames(runtime, pcm_data->hw_ptr);
-}
-
-static int sst_byt_pcm_open(struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component);
- struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream];
- struct sst_byt *byt = pdata->byt;
-
- dev_dbg(rtd->dev, "PCM: open\n");
-
- mutex_lock(&pcm_data->mutex);
-
- pcm_data->substream = substream;
-
- snd_soc_set_runtime_hwparams(substream, &sst_byt_pcm_hardware);
-
- pcm_data->stream = sst_byt_stream_new(byt, substream->stream + 1,
- byt_notify_pointer, pcm_data);
- if (pcm_data->stream == NULL) {
- dev_err(rtd->dev, "failed to create stream\n");
- mutex_unlock(&pcm_data->mutex);
- return -EINVAL;
- }
-
- mutex_unlock(&pcm_data->mutex);
- return 0;
-}
-
-static int sst_byt_pcm_close(struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component);
- struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream];
- struct sst_byt *byt = pdata->byt;
- int ret;
-
- dev_dbg(rtd->dev, "PCM: close\n");
-
- cancel_work_sync(&pcm_data->work);
- mutex_lock(&pcm_data->mutex);
- ret = sst_byt_stream_free(byt, pcm_data->stream);
- if (ret < 0) {
- dev_dbg(rtd->dev, "Free stream fail\n");
- goto out;
- }
- pcm_data->stream = NULL;
-
-out:
- mutex_unlock(&pcm_data->mutex);
- return ret;
-}
-
-static int sst_byt_pcm_mmap(struct snd_soc_component *component,
- struct snd_pcm_substream *substream,
- struct vm_area_struct *vma)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
-
- dev_dbg(rtd->dev, "PCM: mmap\n");
- return snd_pcm_lib_default_mmap(substream, vma);
-}
-
-static int sst_byt_pcm_new(struct snd_soc_component *component,
- struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_pcm *pcm = rtd->pcm;
- size_t size;
- struct sst_pdata *pdata = dev_get_platdata(component->dev);
-
- if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
- pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
- size = sst_byt_pcm_hardware.buffer_bytes_max;
- snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
- pdata->dma_dev, size, size);
- }
-
- return 0;
-}
-
-static struct snd_soc_dai_driver byt_dais[] = {
- {
- .name = "Baytrail PCM",
- .playback = {
- .stream_name = "System Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S24_3LE |
- SNDRV_PCM_FMTBIT_S16_LE,
- },
- .capture = {
- .stream_name = "Analog Capture",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- },
-};
-
-static int sst_byt_pcm_probe(struct snd_soc_component *component)
-{
- struct sst_pdata *plat_data = dev_get_platdata(component->dev);
- struct sst_byt_priv_data *priv_data;
- int i;
-
- if (!plat_data)
- return -ENODEV;
-
- priv_data = devm_kzalloc(component->dev, sizeof(*priv_data),
- GFP_KERNEL);
- if (!priv_data)
- return -ENOMEM;
- priv_data->byt = plat_data->dsp;
- snd_soc_component_set_drvdata(component, priv_data);
-
- for (i = 0; i < BYT_PCM_COUNT; i++) {
- mutex_init(&priv_data->pcm[i].mutex);
- INIT_WORK(&priv_data->pcm[i].work, sst_byt_pcm_work);
- }
-
- return 0;
-}
-
-static const struct snd_soc_component_driver byt_dai_component = {
- .name = DRV_NAME,
- .probe = sst_byt_pcm_probe,
- .open = sst_byt_pcm_open,
- .close = sst_byt_pcm_close,
- .hw_params = sst_byt_pcm_hw_params,
- .trigger = sst_byt_pcm_trigger,
- .pointer = sst_byt_pcm_pointer,
- .mmap = sst_byt_pcm_mmap,
- .pcm_construct = sst_byt_pcm_new,
-};
-
-#ifdef CONFIG_PM
-static int sst_byt_pcm_dev_suspend_late(struct device *dev)
-{
- struct sst_pdata *sst_pdata = dev_get_platdata(dev);
- struct sst_byt_priv_data *priv_data = dev_get_drvdata(dev);
- int ret;
-
- dev_dbg(dev, "suspending late\n");
-
- ret = sst_byt_dsp_suspend_late(dev, sst_pdata);
- if (ret < 0) {
- dev_err(dev, "failed to suspend %d\n", ret);
- return ret;
- }
-
- priv_data->restore_stream = true;
-
- return ret;
-}
-
-static int sst_byt_pcm_dev_resume_early(struct device *dev)
-{
- struct sst_pdata *sst_pdata = dev_get_platdata(dev);
- int ret;
-
- dev_dbg(dev, "resume early\n");
-
- /* load fw and boot DSP */
- ret = sst_byt_dsp_boot(dev, sst_pdata);
- if (ret)
- return ret;
-
- /* wait for FW to finish booting */
- return sst_byt_dsp_wait_for_ready(dev, sst_pdata);
-}
-
-static const struct dev_pm_ops sst_byt_pm_ops = {
- .suspend_late = sst_byt_pcm_dev_suspend_late,
- .resume_early = sst_byt_pcm_dev_resume_early,
-};
-
-#define SST_BYT_PM_OPS (&sst_byt_pm_ops)
-#else
-#define SST_BYT_PM_OPS NULL
-#endif
-
-static int sst_byt_pcm_dev_probe(struct platform_device *pdev)
-{
- struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
- int ret;
-
- ret = sst_byt_dsp_init(&pdev->dev, sst_pdata);
- if (ret < 0)
- return -ENODEV;
-
- ret = devm_snd_soc_register_component(&pdev->dev, &byt_dai_component,
- byt_dais, ARRAY_SIZE(byt_dais));
- if (ret < 0)
- goto err_plat;
-
- return 0;
-
-err_plat:
- sst_byt_dsp_free(&pdev->dev, sst_pdata);
- return ret;
-}
-
-static int sst_byt_pcm_dev_remove(struct platform_device *pdev)
-{
- struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
-
- sst_byt_dsp_free(&pdev->dev, sst_pdata);
-
- return 0;
-}
-
-static struct platform_driver sst_byt_pcm_driver = {
- .driver = {
- .name = "baytrail-pcm-audio",
- .pm = SST_BYT_PM_OPS,
- },
-
- .probe = sst_byt_pcm_dev_probe,
- .remove = sst_byt_pcm_dev_remove,
-};
-module_platform_driver(sst_byt_pcm_driver);
-
-MODULE_AUTHOR("Jarkko Nikula");
-MODULE_DESCRIPTION("Baytrail PCM");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:baytrail-pcm-audio");