From: Ranjani Sridharan ranjani.sridharan@linux.intel.com
Some DAI components, such as HDaudio, need to be stopped in two steps a) stop the DAI component b) stop the DAI DMA
This patch enables this two-step stop by expanding the DAI_CONFIG IPC flags and split them into 2 parts.
The 4 LSB bits indicate when the DAI_CONFIG IPC is sent, ex: hw_params, hw_free or pause. The 4 MSB bits are used as the quirk flags to be used along with the command flags. The quirk flag called SOF_DAI_CONFIG_FLAGS_2_STEP_STOP shall be set along with the HW_PARAMS command flag, i.e. before the pipeline is started so that the stop/pause trigger op in the FW can take the appropriate action to either perform/skip the DMA stop. If set, the DMA stop will be executed when the DAI_CONFIG IPC is sent during hw_free. In the case of pause, DMA pause will be handled when the DAI_CONFIG IPC is sent with the PAUSE command flag.
Along with this, modify the signature for the hda_ctrl_dai_widget_setup/ hda_ctrl_dai_widget_free() functions to take additional flags as an argument and modify all users to pass the appropriate quirk flags. Only the HDA DAI's need to pass the SOF_DAI_CONFIG_FLAGS_2_STEP_STOP quirk flag during hw_params to indicate that it supports two-step stop and pause.
Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Kai Vehmanen kai.vehmanen@linux.intel.com --- include/sound/sof/dai.h | 25 +++++++++++++++++++------ sound/soc/sof/intel/hda-dai.c | 8 ++++---- sound/soc/sof/intel/hda.c | 26 ++++++++++++++++++-------- sound/soc/sof/intel/hda.h | 4 ++-- sound/soc/sof/sof-audio.c | 2 +- 5 files changed, 44 insertions(+), 21 deletions(-)
diff --git a/include/sound/sof/dai.h b/include/sound/sof/dai.h index 5132bc60f54b..59ee50ac7705 100644 --- a/include/sound/sof/dai.h +++ b/include/sound/sof/dai.h @@ -52,12 +52,25 @@ #define SOF_DAI_FMT_INV_MASK 0x0f00 #define SOF_DAI_FMT_CLOCK_PROVIDER_MASK 0xf000
-/* DAI_CONFIG flags */ -#define SOF_DAI_CONFIG_FLAGS_MASK 0x3 -#define SOF_DAI_CONFIG_FLAGS_NONE (0 << 0) /**< DAI_CONFIG sent without stage information */ -#define SOF_DAI_CONFIG_FLAGS_HW_PARAMS (1 << 0) /**< DAI_CONFIG sent during hw_params stage */ -#define SOF_DAI_CONFIG_FLAGS_HW_FREE (2 << 0) /**< DAI_CONFIG sent during hw_free stage */ -#define SOF_DAI_CONFIG_FLAGS_RFU (3 << 0) /**< not used, reserved for future use */ +/* + * DAI_CONFIG flags. The 4 LSB bits are used for the commands, HW_PARAMS, HW_FREE and PAUSE + * representing when the IPC is sent. The 4 MSB bits are used to add quirks along with the above + * commands. + */ +#define SOF_DAI_CONFIG_FLAGS_CMD_MASK 0xF +#define SOF_DAI_CONFIG_FLAGS_NONE 0 /**< DAI_CONFIG sent without stage information */ +#define SOF_DAI_CONFIG_FLAGS_HW_PARAMS BIT(0) /**< DAI_CONFIG sent during hw_params stage */ +#define SOF_DAI_CONFIG_FLAGS_HW_FREE BIT(1) /**< DAI_CONFIG sent during hw_free stage */ +/**< DAI_CONFIG sent during pause trigger. Only available ABI 3.20 onwards */ +#define SOF_DAI_CONFIG_FLAGS_PAUSE BIT(2) +#define SOF_DAI_CONFIG_FLAGS_QUIRK_SHIFT 4 +#define SOF_DAI_CONFIG_FLAGS_QUIRK_MASK (0xF << SOF_DAI_CONFIG_FLAGS_QUIRK_SHIFT) +/* + * This should be used along with the SOF_DAI_CONFIG_FLAGS_HW_PARAMS to indicate that pipeline + * stop/pause and DAI DMA stop/pause should happen in two steps. This change is only available + * ABI 3.20 onwards. + */ +#define SOF_DAI_CONFIG_FLAGS_2_STEP_STOP BIT(0)
/** \brief Types of DAI */ enum sof_ipc_dai_type { diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c index 748e8ed61475..bce5366cf913 100644 --- a/sound/soc/sof/intel/hda-dai.c +++ b/sound/soc/sof/intel/hda-dai.c @@ -197,9 +197,9 @@ static int hda_link_dai_widget_update(struct sof_intel_hda_stream *hda_stream,
/* set up/free DAI widget and send DAI_CONFIG IPC */ if (widget_setup) - return hda_ctrl_dai_widget_setup(w); + return hda_ctrl_dai_widget_setup(w, SOF_DAI_CONFIG_FLAGS_2_STEP_STOP);
- return hda_ctrl_dai_widget_free(w); + return hda_ctrl_dai_widget_free(w, SOF_DAI_CONFIG_FLAGS_NONE); }
static int hda_link_hw_params(struct snd_pcm_substream *substream, @@ -452,9 +452,9 @@ static int ssp_dai_setup_or_free(struct snd_pcm_substream *substream, struct snd return 0;
if (setup) - return hda_ctrl_dai_widget_setup(w); + return hda_ctrl_dai_widget_setup(w, SOF_DAI_CONFIG_FLAGS_NONE);
- return hda_ctrl_dai_widget_free(w); + return hda_ctrl_dai_widget_free(w, SOF_DAI_CONFIG_FLAGS_NONE); }
static int ssp_dai_startup(struct snd_pcm_substream *substream, diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 1e1e9659ea86..cfe026dbf124 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -41,7 +41,7 @@ #define EXCEPT_MAX_HDR_SIZE 0x400 #define HDA_EXT_ROM_STATUS_SIZE 8
-int hda_ctrl_dai_widget_setup(struct snd_soc_dapm_widget *w) +int hda_ctrl_dai_widget_setup(struct snd_soc_dapm_widget *w, unsigned int quirk_flags) { struct snd_sof_widget *swidget = w->dobj.private; struct snd_soc_component *component = swidget->scomp; @@ -58,6 +58,13 @@ int hda_ctrl_dai_widget_setup(struct snd_soc_dapm_widget *w) return -EINVAL; }
+ /* DAI already configured, reset it before reconfiguring it */ + if (sof_dai->configured) { + ret = hda_ctrl_dai_widget_free(w, SOF_DAI_CONFIG_FLAGS_NONE); + if (ret < 0) + return ret; + } + config = &sof_dai->dai_config[sof_dai->current_config];
/* @@ -71,8 +78,10 @@ int hda_ctrl_dai_widget_setup(struct snd_soc_dapm_widget *w) return ret; }
- /* set HW_PARAMS flag */ - config->flags = FIELD_PREP(SOF_DAI_CONFIG_FLAGS_MASK, SOF_DAI_CONFIG_FLAGS_HW_PARAMS); + /* set HW_PARAMS flag along with quirks */ + config->flags = SOF_DAI_CONFIG_FLAGS_HW_PARAMS | + quirk_flags << SOF_DAI_CONFIG_FLAGS_QUIRK_SHIFT; +
/* send DAI_CONFIG IPC */ ret = sof_ipc_tx_message(sdev->ipc, config->hdr.cmd, config, config->hdr.size, @@ -87,7 +96,7 @@ int hda_ctrl_dai_widget_setup(struct snd_soc_dapm_widget *w) return 0; }
-int hda_ctrl_dai_widget_free(struct snd_soc_dapm_widget *w) +int hda_ctrl_dai_widget_free(struct snd_soc_dapm_widget *w, unsigned int quirk_flags) { struct snd_sof_widget *swidget = w->dobj.private; struct snd_soc_component *component = swidget->scomp; @@ -110,8 +119,9 @@ int hda_ctrl_dai_widget_free(struct snd_soc_dapm_widget *w)
config = &sof_dai->dai_config[sof_dai->current_config];
- /* set HW_FREE flag */ - config->flags = FIELD_PREP(SOF_DAI_CONFIG_FLAGS_MASK, SOF_DAI_CONFIG_FLAGS_HW_FREE); + /* set HW_FREE flag along with any quirks */ + config->flags = SOF_DAI_CONFIG_FLAGS_HW_FREE | + quirk_flags << SOF_DAI_CONFIG_FLAGS_QUIRK_SHIFT;
ret = sof_ipc_tx_message(sdev->ipc, config->hdr.cmd, config, config->hdr.size, &reply, sizeof(reply)); @@ -166,9 +176,9 @@ static int sdw_dai_config_ipc(struct snd_sof_dev *sdev, config->alh.stream_id = alh_stream_id;
if (setup) - return hda_ctrl_dai_widget_setup(w); + return hda_ctrl_dai_widget_setup(w, SOF_DAI_CONFIG_FLAGS_NONE);
- return hda_ctrl_dai_widget_free(w); + return hda_ctrl_dai_widget_free(w, SOF_DAI_CONFIG_FLAGS_NONE); }
static int sdw_params_stream(struct device *dev, diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 60139ea9b8de..72e78c449aa8 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -739,7 +739,7 @@ int hda_pci_intel_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
struct snd_sof_dai; struct sof_ipc_dai_config; -int hda_ctrl_dai_widget_setup(struct snd_soc_dapm_widget *w); -int hda_ctrl_dai_widget_free(struct snd_soc_dapm_widget *w); +int hda_ctrl_dai_widget_setup(struct snd_soc_dapm_widget *w, unsigned int quirk_flags); +int hda_ctrl_dai_widget_free(struct snd_soc_dapm_widget *w, unsigned int quirk_flags);
#endif diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c index a275f7b7c812..58a62bfb16ab 100644 --- a/sound/soc/sof/sof-audio.c +++ b/sound/soc/sof/sof-audio.c @@ -57,7 +57,7 @@ static int sof_dai_config_setup(struct snd_sof_dev *sdev, struct snd_sof_dai *da }
/* set NONE flag to clear all previous settings */ - config->flags = FIELD_PREP(SOF_DAI_CONFIG_FLAGS_MASK, SOF_DAI_CONFIG_FLAGS_NONE); + config->flags = SOF_DAI_CONFIG_FLAGS_NONE;
ret = sof_ipc_tx_message(sdev->ipc, config->hdr.cmd, config, config->hdr.size, &reply, sizeof(reply));