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- // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
- //
- // This file is provided under a dual BSD/GPLv2 license. When using or
- // redistributing this file, you may do so under either license.
- //
- // Copyright(c) 2022 Intel Corporation. All rights reserved.
- //
- #include <sound/pcm_params.h>
- #include <sound/sof/ipc4/header.h>
- #include "sof-audio.h"
- #include "sof-priv.h"
- #include "ipc4-priv.h"
- #include "ipc4-topology.h"
- int sof_ipc4_set_pipeline_state(struct snd_sof_dev *sdev, u32 id, u32 state)
- {
- struct sof_ipc4_msg msg = {{ 0 }};
- u32 primary;
- dev_dbg(sdev->dev, "ipc4 set pipeline %d state %d", id, state);
- primary = state;
- primary |= SOF_IPC4_GLB_PIPE_STATE_ID(id);
- primary |= SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_GLB_SET_PIPELINE_STATE);
- primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);
- primary |= SOF_IPC4_MSG_TARGET(SOF_IPC4_FW_GEN_MSG);
- msg.primary = primary;
- return sof_ipc_tx_message(sdev->ipc, &msg, 0, NULL, 0);
- }
- EXPORT_SYMBOL(sof_ipc4_set_pipeline_state);
- static int sof_ipc4_trigger_pipelines(struct snd_soc_component *component,
- struct snd_pcm_substream *substream, int state)
- {
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_sof_widget *pipeline_widget;
- struct snd_soc_dapm_widget_list *list;
- struct snd_soc_dapm_widget *widget;
- struct sof_ipc4_pipeline *pipeline;
- struct snd_sof_widget *swidget;
- struct snd_sof_pcm *spcm;
- int ret = 0;
- int num_widgets;
- spcm = snd_sof_find_spcm_dai(component, rtd);
- if (!spcm)
- return -EINVAL;
- list = spcm->stream[substream->stream].list;
- for_each_dapm_widgets(list, num_widgets, widget) {
- swidget = widget->dobj.private;
- if (!swidget)
- continue;
- /*
- * set pipeline state for both FE and BE pipelines for RUNNING state.
- * For PAUSE/RESET, set the pipeline state only for the FE pipeline.
- */
- switch (state) {
- case SOF_IPC4_PIPE_PAUSED:
- case SOF_IPC4_PIPE_RESET:
- if (!WIDGET_IS_AIF(swidget->id))
- continue;
- break;
- default:
- break;
- }
- /* find pipeline widget for the pipeline that this widget belongs to */
- pipeline_widget = swidget->pipe_widget;
- pipeline = (struct sof_ipc4_pipeline *)pipeline_widget->private;
- if (pipeline->state == state)
- continue;
- /* first set the pipeline to PAUSED state */
- if (pipeline->state != SOF_IPC4_PIPE_PAUSED) {
- ret = sof_ipc4_set_pipeline_state(sdev, swidget->pipeline_id,
- SOF_IPC4_PIPE_PAUSED);
- if (ret < 0) {
- dev_err(sdev->dev, "failed to pause pipeline %d\n",
- swidget->pipeline_id);
- return ret;
- }
- }
- pipeline->state = SOF_IPC4_PIPE_PAUSED;
- if (pipeline->state == state)
- continue;
- /* then set the final state */
- ret = sof_ipc4_set_pipeline_state(sdev, swidget->pipeline_id, state);
- if (ret < 0) {
- dev_err(sdev->dev, "failed to set state %d for pipeline %d\n",
- state, swidget->pipeline_id);
- break;
- }
- pipeline->state = state;
- }
- return ret;
- }
- static int sof_ipc4_pcm_trigger(struct snd_soc_component *component,
- struct snd_pcm_substream *substream, int cmd)
- {
- int state;
- /* 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_SUSPEND:
- case SNDRV_PCM_TRIGGER_STOP:
- state = SOF_IPC4_PIPE_PAUSED;
- break;
- default:
- dev_err(component->dev, "%s: unhandled trigger cmd %d\n", __func__, cmd);
- return -EINVAL;
- }
- /* set the pipeline state */
- return sof_ipc4_trigger_pipelines(component, substream, state);
- }
- static int sof_ipc4_pcm_hw_free(struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
- {
- return sof_ipc4_trigger_pipelines(component, substream, SOF_IPC4_PIPE_RESET);
- }
- static void ipc4_ssp_dai_config_pcm_params_match(struct snd_sof_dev *sdev, const char *link_name,
- struct snd_pcm_hw_params *params)
- {
- struct snd_sof_dai_link *slink;
- struct snd_sof_dai *dai;
- bool dai_link_found = false;
- int i;
- list_for_each_entry(slink, &sdev->dai_link_list, list) {
- if (!strcmp(slink->link->name, link_name)) {
- dai_link_found = true;
- break;
- }
- }
- if (!dai_link_found)
- return;
- for (i = 0; i < slink->num_hw_configs; i++) {
- struct snd_soc_tplg_hw_config *hw_config = &slink->hw_configs[i];
- if (params_rate(params) == le32_to_cpu(hw_config->fsync_rate)) {
- /* set current config for all DAI's with matching name */
- list_for_each_entry(dai, &sdev->dai_list, list)
- if (!strcmp(slink->link->name, dai->name))
- dai->current_config = le32_to_cpu(hw_config->id);
- break;
- }
- }
- }
- static int sof_ipc4_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
- struct snd_pcm_hw_params *params)
- {
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
- struct snd_sof_dai *dai = snd_sof_find_dai(component, rtd->dai_link->name);
- struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
- struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
- struct sof_ipc4_copier *ipc4_copier;
- struct snd_soc_dpcm *dpcm;
- if (!dai) {
- dev_err(component->dev, "%s: No DAI found with name %s\n", __func__,
- rtd->dai_link->name);
- return -EINVAL;
- }
- ipc4_copier = dai->private;
- if (!ipc4_copier) {
- dev_err(component->dev, "%s: No private data found for DAI %s\n",
- __func__, rtd->dai_link->name);
- return -EINVAL;
- }
- /* always set BE format to 32-bits for both playback and capture */
- snd_mask_none(fmt);
- snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE);
- rate->min = ipc4_copier->available_fmt.base_config->audio_fmt.sampling_frequency;
- rate->max = rate->min;
- /*
- * Set trigger order for capture to SND_SOC_DPCM_TRIGGER_PRE. This is required
- * to ensure that the BE DAI pipeline gets stopped/suspended before the FE DAI
- * pipeline gets triggered and the pipeline widgets are freed.
- */
- for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_CAPTURE, dpcm) {
- struct snd_soc_pcm_runtime *fe = dpcm->fe;
- fe->dai_link->trigger[SNDRV_PCM_STREAM_CAPTURE] = SND_SOC_DPCM_TRIGGER_PRE;
- }
- switch (ipc4_copier->dai_type) {
- case SOF_DAI_INTEL_SSP:
- ipc4_ssp_dai_config_pcm_params_match(sdev, (char *)rtd->dai_link->name, params);
- break;
- default:
- break;
- }
- return 0;
- }
- const struct sof_ipc_pcm_ops ipc4_pcm_ops = {
- .trigger = sof_ipc4_pcm_trigger,
- .hw_free = sof_ipc4_pcm_hw_free,
- .dai_link_fixup = sof_ipc4_pcm_dai_link_fixup,
- };
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