Define and set the PCM ops for IPC4.
Co-developed-by: Rander Wang rander.wang@linux.intel.com Signed-off-by: Rander Wang rander.wang@linux.intel.com Co-developed-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Yaochun Hung yc.hung@mediatek.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- sound/soc/sof/Makefile | 2 +- sound/soc/sof/ipc4-pcm.c | 229 ++++++++++++++++++++++++++++++++++++++ sound/soc/sof/ipc4-priv.h | 1 + sound/soc/sof/ipc4.c | 1 + 4 files changed, 232 insertions(+), 1 deletion(-) create mode 100644 sound/soc/sof/ipc4-pcm.c
diff --git a/sound/soc/sof/Makefile b/sound/soc/sof/Makefile index 1e15937f2bde..2fa8088707a8 100644 --- a/sound/soc/sof/Makefile +++ b/sound/soc/sof/Makefile @@ -4,7 +4,7 @@ snd-sof-objs := core.o ops.o loader.o ipc.o pcm.o pm.o debug.o topology.o\ control.o trace.o iomem-utils.o sof-audio.o stream-ipc.o\ ipc3-topology.o ipc3-control.o ipc3.o ipc3-pcm.o ipc3-loader.o\ ipc3-dtrace.o\ - ipc4.o ipc4-loader.o ipc4-topology.o ipc4-control.o + ipc4.o ipc4-loader.o ipc4-topology.o ipc4-control.o ipc4-pcm.o ifneq ($(CONFIG_SND_SOC_SOF_CLIENT),) snd-sof-objs += sof-client.o endif diff --git a/sound/soc/sof/ipc4-pcm.c b/sound/soc/sof/ipc4-pcm.c new file mode 100644 index 000000000000..7a56fba8f1d9 --- /dev/null +++ b/sound/soc/sof/ipc4-pcm.c @@ -0,0 +1,229 @@ +// 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" + +static 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); +} + +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_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); + + /* + * 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, +}; diff --git a/sound/soc/sof/ipc4-priv.h b/sound/soc/sof/ipc4-priv.h index d0b110811aeb..e4381a74516c 100644 --- a/sound/soc/sof/ipc4-priv.h +++ b/sound/soc/sof/ipc4-priv.h @@ -42,5 +42,6 @@ struct sof_ipc4_fw_module { 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; +extern const struct sof_ipc_pcm_ops ipc4_pcm_ops;
#endif diff --git a/sound/soc/sof/ipc4.c b/sound/soc/sof/ipc4.c index be677a33882d..700069e759c4 100644 --- a/sound/soc/sof/ipc4.c +++ b/sound/soc/sof/ipc4.c @@ -604,4 +604,5 @@ const struct sof_ipc_ops ipc4_ops = { .get_reply = sof_ipc4_get_reply, .fw_loader = &ipc4_loader_ops, .tplg = &ipc4_tplg_ops, + .pcm = &ipc4_pcm_ops, };