diff options
Diffstat (limited to 'sound/soc/sof/sof-audio.c')
-rw-r--r-- | sound/soc/sof/sof-audio.c | 445 |
1 files changed, 445 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c new file mode 100644 index 000000000000..0d8f65b9ae25 --- /dev/null +++ b/sound/soc/sof/sof-audio.c @@ -0,0 +1,445 @@ +// SPDX-License-Identifier: (GPL-2.0 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) 2019 Intel Corporation. All rights reserved. +// +// Author: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> +// + +#include "sof-audio.h" +#include "ops.h" + +bool snd_sof_dsp_d0i3_on_suspend(struct snd_sof_dev *sdev) +{ + struct snd_sof_pcm *spcm; + + list_for_each_entry(spcm, &sdev->pcm_list, list) { + if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].suspend_ignored || + spcm->stream[SNDRV_PCM_STREAM_CAPTURE].suspend_ignored) + return true; + } + + return false; +} + +int sof_set_hw_params_upon_resume(struct device *dev) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + struct snd_pcm_substream *substream; + struct snd_sof_pcm *spcm; + snd_pcm_state_t state; + int dir; + + /* + * SOF requires hw_params to be set-up internally upon resume. + * So, set the flag to indicate this for those streams that + * have been suspended. + */ + list_for_each_entry(spcm, &sdev->pcm_list, list) { + for (dir = 0; dir <= SNDRV_PCM_STREAM_CAPTURE; dir++) { + substream = spcm->stream[dir].substream; + if (!substream || !substream->runtime) + continue; + + state = substream->runtime->status->state; + if (state == SNDRV_PCM_STATE_SUSPENDED) + spcm->prepared[dir] = false; + } + } + + /* set internal flag for BE */ + return snd_sof_dsp_hw_params_upon_resume(sdev); +} + +static int sof_restore_kcontrols(struct device *dev) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + struct snd_sof_control *scontrol; + int ipc_cmd, ctrl_type; + int ret = 0; + + /* restore kcontrol values */ + list_for_each_entry(scontrol, &sdev->kcontrol_list, list) { + /* reset readback offset for scontrol after resuming */ + scontrol->readback_offset = 0; + + /* notify DSP of kcontrol values */ + switch (scontrol->cmd) { + case SOF_CTRL_CMD_VOLUME: + case SOF_CTRL_CMD_ENUM: + case SOF_CTRL_CMD_SWITCH: + ipc_cmd = SOF_IPC_COMP_SET_VALUE; + ctrl_type = SOF_CTRL_TYPE_VALUE_CHAN_SET; + ret = snd_sof_ipc_set_get_comp_data(scontrol, + ipc_cmd, ctrl_type, + scontrol->cmd, + true); + break; + case SOF_CTRL_CMD_BINARY: + ipc_cmd = SOF_IPC_COMP_SET_DATA; + ctrl_type = SOF_CTRL_TYPE_DATA_SET; + ret = snd_sof_ipc_set_get_comp_data(scontrol, + ipc_cmd, ctrl_type, + scontrol->cmd, + true); + break; + + default: + break; + } + + if (ret < 0) { + dev_err(dev, + "error: failed kcontrol value set for widget: %d\n", + scontrol->comp_id); + + return ret; + } + } + + return 0; +} + +int sof_restore_pipelines(struct device *dev) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + struct snd_sof_widget *swidget; + struct snd_sof_route *sroute; + struct sof_ipc_pipe_new *pipeline; + struct snd_sof_dai *dai; + struct sof_ipc_comp_dai *comp_dai; + struct sof_ipc_cmd_hdr *hdr; + int ret; + + /* restore pipeline components */ + list_for_each_entry_reverse(swidget, &sdev->widget_list, list) { + struct sof_ipc_comp_reply r; + + /* skip if there is no private data */ + if (!swidget->private) + continue; + + switch (swidget->id) { + case snd_soc_dapm_dai_in: + case snd_soc_dapm_dai_out: + dai = swidget->private; + comp_dai = &dai->comp_dai; + ret = sof_ipc_tx_message(sdev->ipc, + comp_dai->comp.hdr.cmd, + comp_dai, sizeof(*comp_dai), + &r, sizeof(r)); + break; + case snd_soc_dapm_scheduler: + + /* + * During suspend, all DSP cores are powered off. + * Therefore upon resume, create the pipeline comp + * and power up the core that the pipeline is + * scheduled on. + */ + pipeline = swidget->private; + ret = sof_load_pipeline_ipc(dev, pipeline, &r); + break; + default: + hdr = swidget->private; + ret = sof_ipc_tx_message(sdev->ipc, hdr->cmd, + swidget->private, hdr->size, + &r, sizeof(r)); + break; + } + if (ret < 0) { + dev_err(dev, + "error: failed to load widget type %d with ID: %d\n", + swidget->widget->id, swidget->comp_id); + + return ret; + } + } + + /* restore pipeline connections */ + list_for_each_entry_reverse(sroute, &sdev->route_list, list) { + struct sof_ipc_pipe_comp_connect *connect; + struct sof_ipc_reply reply; + + /* skip if there's no private data */ + if (!sroute->private) + continue; + + connect = sroute->private; + + /* send ipc */ + ret = sof_ipc_tx_message(sdev->ipc, + connect->hdr.cmd, + connect, sizeof(*connect), + &reply, sizeof(reply)); + if (ret < 0) { + dev_err(dev, + "error: failed to load route sink %s control %s source %s\n", + sroute->route->sink, + sroute->route->control ? sroute->route->control + : "none", + sroute->route->source); + + return ret; + } + } + + /* restore dai links */ + list_for_each_entry_reverse(dai, &sdev->dai_list, list) { + struct sof_ipc_reply reply; + struct sof_ipc_dai_config *config = dai->dai_config; + + if (!config) { + dev_err(dev, "error: no config for DAI %s\n", + dai->name); + continue; + } + + /* + * The link DMA channel would be invalidated for running + * streams but not for streams that were in the PAUSED + * state during suspend. So invalidate it here before setting + * the dai config in the DSP. + */ + if (config->type == SOF_DAI_INTEL_HDA) + config->hda.link_dma_ch = DMA_CHAN_INVALID; + + ret = sof_ipc_tx_message(sdev->ipc, + config->hdr.cmd, config, + config->hdr.size, + &reply, sizeof(reply)); + + if (ret < 0) { + dev_err(dev, + "error: failed to set dai config for %s\n", + dai->name); + + return ret; + } + } + + /* complete pipeline */ + list_for_each_entry(swidget, &sdev->widget_list, list) { + switch (swidget->id) { + case snd_soc_dapm_scheduler: + swidget->complete = + snd_sof_complete_pipeline(dev, swidget); + break; + default: + break; + } + } + + /* restore pipeline kcontrols */ + ret = sof_restore_kcontrols(dev); + if (ret < 0) + dev_err(dev, + "error: restoring kcontrols after resume\n"); + + return ret; +} + +/* + * Generic object lookup APIs. + */ + +struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_soc_component *scomp, + const char *name) +{ + struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); + struct snd_sof_pcm *spcm; + + list_for_each_entry(spcm, &sdev->pcm_list, list) { + /* match with PCM dai name */ + if (strcmp(spcm->pcm.dai_name, name) == 0) + return spcm; + + /* match with playback caps name if set */ + if (*spcm->pcm.caps[0].name && + !strcmp(spcm->pcm.caps[0].name, name)) + return spcm; + + /* match with capture caps name if set */ + if (*spcm->pcm.caps[1].name && + !strcmp(spcm->pcm.caps[1].name, name)) + return spcm; + } + + return NULL; +} + +struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_soc_component *scomp, + unsigned int comp_id, + int *direction) +{ + struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); + struct snd_sof_pcm *spcm; + int dir; + + list_for_each_entry(spcm, &sdev->pcm_list, list) { + dir = SNDRV_PCM_STREAM_PLAYBACK; + if (spcm->stream[dir].comp_id == comp_id) { + *direction = dir; + return spcm; + } + + dir = SNDRV_PCM_STREAM_CAPTURE; + if (spcm->stream[dir].comp_id == comp_id) { + *direction = dir; + return spcm; + } + } + + return NULL; +} + +struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_soc_component *scomp, + unsigned int pcm_id) +{ + struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); + struct snd_sof_pcm *spcm; + + list_for_each_entry(spcm, &sdev->pcm_list, list) { + if (le32_to_cpu(spcm->pcm.pcm_id) == pcm_id) + return spcm; + } + + return NULL; +} + +struct snd_sof_widget *snd_sof_find_swidget(struct snd_soc_component *scomp, + const char *name) +{ + struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); + struct snd_sof_widget *swidget; + + list_for_each_entry(swidget, &sdev->widget_list, list) { + if (strcmp(name, swidget->widget->name) == 0) + return swidget; + } + + return NULL; +} + +/* find widget by stream name and direction */ +struct snd_sof_widget * +snd_sof_find_swidget_sname(struct snd_soc_component *scomp, + const char *pcm_name, int dir) +{ + struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); + struct snd_sof_widget *swidget; + enum snd_soc_dapm_type type; + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + type = snd_soc_dapm_aif_in; + else + type = snd_soc_dapm_aif_out; + + list_for_each_entry(swidget, &sdev->widget_list, list) { + if (!strcmp(pcm_name, swidget->widget->sname) && + swidget->id == type) + return swidget; + } + + return NULL; +} + +struct snd_sof_dai *snd_sof_find_dai(struct snd_soc_component *scomp, + const char *name) +{ + struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); + struct snd_sof_dai *dai; + + list_for_each_entry(dai, &sdev->dai_list, list) { + if (dai->name && (strcmp(name, dai->name) == 0)) + return dai; + } + + return NULL; +} + +/* + * SOF Driver enumeration. + */ +int sof_machine_check(struct snd_sof_dev *sdev) +{ + struct snd_sof_pdata *sof_pdata = sdev->pdata; + const struct sof_dev_desc *desc = sof_pdata->desc; + struct snd_soc_acpi_mach *mach; + int ret; + + /* force nocodec mode */ +#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE) + dev_warn(sdev->dev, "Force to use nocodec mode\n"); + goto nocodec; +#endif + + /* find machine */ + snd_sof_machine_select(sdev); + if (sof_pdata->machine) { + snd_sof_set_mach_params(sof_pdata->machine, sdev->dev); + return 0; + } + +#if !IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC) + dev_err(sdev->dev, "error: no matching ASoC machine driver found - aborting probe\n"); + return -ENODEV; +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE) +nocodec: +#endif + /* select nocodec mode */ + dev_warn(sdev->dev, "Using nocodec machine driver\n"); + mach = devm_kzalloc(sdev->dev, sizeof(*mach), GFP_KERNEL); + if (!mach) + return -ENOMEM; + + mach->drv_name = "sof-nocodec"; + sof_pdata->tplg_filename = desc->nocodec_tplg_filename; + + ret = sof_nocodec_setup(sdev->dev, desc->ops); + if (ret < 0) + return ret; + + sof_pdata->machine = mach; + snd_sof_set_mach_params(sof_pdata->machine, sdev->dev); + + return 0; +} +EXPORT_SYMBOL(sof_machine_check); + +int sof_machine_register(struct snd_sof_dev *sdev, void *pdata) +{ + struct snd_sof_pdata *plat_data = (struct snd_sof_pdata *)pdata; + const char *drv_name; + const void *mach; + int size; + + drv_name = plat_data->machine->drv_name; + mach = (const void *)plat_data->machine; + size = sizeof(*plat_data->machine); + + /* register machine driver, pass machine info as pdata */ + plat_data->pdev_mach = + platform_device_register_data(sdev->dev, drv_name, + PLATFORM_DEVID_NONE, mach, size); + if (IS_ERR(plat_data->pdev_mach)) + return PTR_ERR(plat_data->pdev_mach); + + dev_dbg(sdev->dev, "created machine %s\n", + dev_name(&plat_data->pdev_mach->dev)); + + return 0; +} +EXPORT_SYMBOL(sof_machine_register); + +void sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata) +{ + struct snd_sof_pdata *plat_data = (struct snd_sof_pdata *)pdata; + + if (!IS_ERR_OR_NULL(plat_data->pdev_mach)) + platform_device_unregister(plat_data->pdev_mach); +} +EXPORT_SYMBOL(sof_machine_unregister); |