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ASoC: SOF: IPC: dai: Expand DAI_CONFIG IPC flags

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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>
Link: https://lore.kernel.org/r/20211125101520.291581-10-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ranjani Sridharan 2021-11-25 12:15:19 +02:00 committed by Mark Brown
parent 0b639dcd45
commit a0f84dfb3f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
5 changed files with 44 additions and 21 deletions
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25
include/sound/sof/dai.h
View File

@ -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 {

8
sound/soc/sof/intel/hda-dai.c
View File

@ -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,

26
sound/soc/sof/intel/hda.c
View File

@ -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,

4
sound/soc/sof/intel/hda.h
View File

@ -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

2
sound/soc/sof/sof-audio.c
View File

@ -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));