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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-09 08:26:55 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-09 08:26:55 -0700 |
commit | e57ccca1ba33e1d92cc3bbf8b6304a46948844b0 (patch) | |
tree | a988a1f7d1d3250f57761dbea365482300a7b3b2 /sound/soc/sof/pm.c | |
parent | a2d635decbfa9c1e4ae15cb05b68b2559f7f827c (diff) | |
parent | ed97c988bdc61ab6fb5d1f5f02a709844557b68f (diff) | |
download | linux-e57ccca1ba33e1d92cc3bbf8b6304a46948844b0.tar.bz2 |
Merge tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"The most significant changes at this cycle are the Sound Open Firmware
support from Intel for the common DSP framework along with its support
for Intel platforms. It's a door opened to a real "free" firmware (in
the sense of FOSS), and other parties show interests in it.
In addition to SOF, we've got a bunch of updates and fixes as usual.
Some highlights are below.
ALSA core:
- Cleanups and fixes in ALSA timer code to cover some races spotted
by syzkaller
- Cleanups and fixes in ALSA sequencer code to cover some races,
again unsurprisingly, spotted by syzkaller
- Optimize the common page allocation helper with alloc_pages_exact()
ASoC:
- Add SOF core support, as well as Intel SOF platform support
- Generic card driver improvements: support for MCLK/sample rate
ratio and pin switches
- A big set of improvements to TLV320AIC32x4 drivers
- New drivers for Freescale audio mixers, several Intel machines,
several Mediatek machines, Meson G12A, Spreadtrum compressed audio
and DMA devices
HD-audio:
- A few Realtek codec fixes for reducing pop noises
- Quirks for Chromebooks
- Workaround for faulty connection report on AMD/Nvidia HDMI
Others:
- A quirk for Focusrite Scarlett Solo USB-audio
- Add support for MOTU 8pre FireWire
- 24bit sample format support in aloop
- GUS patch format support (finally, over a decade) in native emux
synth code"
* tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (375 commits)
ASoC: SOF: Fix unused variable warnings
ALSA: line6: toneport: Fix broken usage of timer for delayed execution
ALSA: aica: Fix a long-time build breakage
ALSA: hda/realtek - Support low power consumption for ALC256
ASoC: stm32: i2s: update pcm hardware constraints
ASoC: codec: hdac_hdmi: no checking monitor in hw_params
ASoC: mediatek: mt6358: save PGA for mixer control
ASoC: mediatek: mt6358: save output volume for mixer controls
ASoC: mediatek: mt6358: initialize setting when ramping volume
ASoC: SOF: core: fix undefined nocodec reference
ASoC: SOF: xtensa: fix undefined references
ASoC: SOF: Propagate sof_get_ctrl_copy_params() error properly
ALSA: hdea/realtek - Headset fixup for System76 Gazelle (gaze14)
ALSA: hda/intel: add CometLake PCI IDs
ALSA: hda/realtek - Support low power consumption for ALC295
ASoC: rockchip: Fix an uninitialized variable compile warning
ASoC: SOF: Fix a compile warning with CONFIG_PCI=n
ASoC: da7219: Fix a compile warning at CONFIG_COMMON_CLK=n
ASoC: sound/soc/sof/: fix kconfig dependency warning
ASoC: stm32: spdifrx: change trace level on iec control
...
Diffstat (limited to 'sound/soc/sof/pm.c')
-rw-r--r-- | sound/soc/sof/pm.c | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c new file mode 100644 index 000000000000..8ef1d51025d8 --- /dev/null +++ b/sound/soc/sof/pm.c @@ -0,0 +1,388 @@ +// 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) 2018 Intel Corporation. All rights reserved. +// +// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com> +// + +#include "ops.h" +#include "sof-priv.h" + +static int sof_restore_kcontrols(struct snd_sof_dev *sdev) +{ + 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(sdev->ipc, 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(sdev->ipc, scontrol, + ipc_cmd, ctrl_type, + scontrol->cmd, + true); + break; + + default: + break; + } + + if (ret < 0) { + dev_err(sdev->dev, + "error: failed kcontrol value set for widget: %d\n", + scontrol->comp_id); + + return ret; + } + } + + return 0; +} + +static int sof_restore_pipelines(struct snd_sof_dev *sdev) +{ + 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(sdev, 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(sdev->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(sdev->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(sdev->dev, "error: no config for DAI %s\n", + dai->name); + continue; + } + + ret = sof_ipc_tx_message(sdev->ipc, + config->hdr.cmd, config, + config->hdr.size, + &reply, sizeof(reply)); + + if (ret < 0) { + dev_err(sdev->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(sdev, swidget); + break; + default: + break; + } + } + + /* restore pipeline kcontrols */ + ret = sof_restore_kcontrols(sdev); + if (ret < 0) + dev_err(sdev->dev, + "error: restoring kcontrols after resume\n"); + + return ret; +} + +static int sof_send_pm_ipc(struct snd_sof_dev *sdev, int cmd) +{ + struct sof_ipc_pm_ctx pm_ctx; + struct sof_ipc_reply reply; + + memset(&pm_ctx, 0, sizeof(pm_ctx)); + + /* configure ctx save ipc message */ + pm_ctx.hdr.size = sizeof(pm_ctx); + pm_ctx.hdr.cmd = SOF_IPC_GLB_PM_MSG | cmd; + + /* send ctx save ipc to dsp */ + return sof_ipc_tx_message(sdev->ipc, pm_ctx.hdr.cmd, &pm_ctx, + sizeof(pm_ctx), &reply, sizeof(reply)); +} + +static void sof_set_hw_params_upon_resume(struct snd_sof_dev *sdev) +{ + 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->hw_params_upon_resume[dir] = 1; + } + } + + /* set internal flag for BE */ + snd_sof_dsp_hw_params_upon_resume(sdev); +} + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_ENABLE_DEBUGFS_CACHE) +static void sof_cache_debugfs(struct snd_sof_dev *sdev) +{ + struct snd_sof_dfsentry *dfse; + + list_for_each_entry(dfse, &sdev->dfsentry_list, list) { + + /* nothing to do if debugfs buffer is not IO mem */ + if (dfse->type == SOF_DFSENTRY_TYPE_BUF) + continue; + + /* cache memory that is only accessible in D0 */ + if (dfse->access_type == SOF_DEBUGFS_ACCESS_D0_ONLY) + memcpy_fromio(dfse->cache_buf, dfse->io_mem, + dfse->size); + } +} +#endif + +static int sof_resume(struct device *dev, bool runtime_resume) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + int ret; + + /* do nothing if dsp resume callbacks are not set */ + if (!sof_ops(sdev)->resume || !sof_ops(sdev)->runtime_resume) + return 0; + + /* + * if the runtime_resume flag is set, call the runtime_resume routine + * or else call the system resume routine + */ + if (runtime_resume) + ret = snd_sof_dsp_runtime_resume(sdev); + else + ret = snd_sof_dsp_resume(sdev); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to power up DSP after resume\n"); + return ret; + } + + /* load the firmware */ + ret = snd_sof_load_firmware(sdev); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to load DSP firmware after resume %d\n", + ret); + return ret; + } + + /* boot the firmware */ + ret = snd_sof_run_firmware(sdev); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to boot DSP firmware after resume %d\n", + ret); + return ret; + } + + /* resume DMA trace, only need send ipc */ + ret = snd_sof_init_trace_ipc(sdev); + if (ret < 0) { + /* non fatal */ + dev_warn(sdev->dev, + "warning: failed to init trace after resume %d\n", + ret); + } + + /* restore pipelines */ + ret = sof_restore_pipelines(sdev); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to restore pipeline after resume %d\n", + ret); + return ret; + } + + /* notify DSP of system resume */ + ret = sof_send_pm_ipc(sdev, SOF_IPC_PM_CTX_RESTORE); + if (ret < 0) + dev_err(sdev->dev, + "error: ctx_restore ipc error during resume %d\n", + ret); + + return ret; +} + +static int sof_suspend(struct device *dev, bool runtime_suspend) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + int ret; + + /* do nothing if dsp suspend callback is not set */ + if (!sof_ops(sdev)->suspend) + return 0; + + /* release trace */ + snd_sof_release_trace(sdev); + + /* set restore_stream for all streams during system suspend */ + if (!runtime_suspend) + sof_set_hw_params_upon_resume(sdev); + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_ENABLE_DEBUGFS_CACHE) + /* cache debugfs contents during runtime suspend */ + if (runtime_suspend) + sof_cache_debugfs(sdev); +#endif + /* notify DSP of upcoming power down */ + ret = sof_send_pm_ipc(sdev, SOF_IPC_PM_CTX_SAVE); + if (ret < 0) { + dev_err(sdev->dev, + "error: ctx_save ipc error during suspend %d\n", + ret); + return ret; + } + + /* power down all DSP cores */ + if (runtime_suspend) + ret = snd_sof_dsp_runtime_suspend(sdev, 0); + else + ret = snd_sof_dsp_suspend(sdev, 0); + if (ret < 0) + dev_err(sdev->dev, + "error: failed to power down DSP during suspend %d\n", + ret); + + return ret; +} + +int snd_sof_runtime_suspend(struct device *dev) +{ + return sof_suspend(dev, true); +} +EXPORT_SYMBOL(snd_sof_runtime_suspend); + +int snd_sof_runtime_resume(struct device *dev) +{ + return sof_resume(dev, true); +} +EXPORT_SYMBOL(snd_sof_runtime_resume); + +int snd_sof_resume(struct device *dev) +{ + return sof_resume(dev, false); +} +EXPORT_SYMBOL(snd_sof_resume); + +int snd_sof_suspend(struct device *dev) +{ + return sof_suspend(dev, false); +} +EXPORT_SYMBOL(snd_sof_suspend); |