[PATCH v2 1/9] sound: sdw: Add hw_params to SoundWire config helper function
The vast majority of the current users of the SoundWire framework have almost identical code for converting from hw_params to SoundWire configuration. Whilst complex devices might require more, it is very likely that most new devices will follow the same pattern. Save a little code by factoring this out into a helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
I was a little bit two minds about whether to make this an inline or not, so any thoughts on that would be super welcome. The function does very little, especially given that SNDRV_PCM_STREAM_PLAYBACK == SDW_DATA_DIR_RX so the if is also really just an assignment.
Thanks, Charles
Changes since v1: - Correct spelling error in commit message
include/sound/sdw.h | 49 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 include/sound/sdw.h
diff --git a/include/sound/sdw.h b/include/sound/sdw.h new file mode 100644 index 0000000000000..6dcdb3228dba6 --- /dev/null +++ b/include/sound/sdw.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * linux/sound/sdw.h -- SoundWire helpers for ALSA/ASoC + * + * Copyright (c) 2022 Cirrus Logic Inc. + * + * Author: Charles Keepax ckeepax@opensource.cirrus.com + */ + +#include <linux/soundwire/sdw.h> +#include <sound/asound.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#ifndef __INCLUDE_SOUND_SDW_H +#define __INCLUDE_SOUND_SDW_H + +/** + * snd_sdw_params_to_config() - Conversion from hw_params to SoundWire config + * + * @substream: Pointer to the PCM substream structure + * @params: Pointer to the hardware params structure + * @stream_config: Stream configuration for the SoundWire audio stream + * @port_config: Port configuration for the SoundWire audio stream + * + * This function provides a basic conversion from the hw_params structure to + * SoundWire configuration structures. The user will at a minimum need to also + * set the port number in the port config, but may also override more of the + * setup, or in the case of a complex user, not use this helper at all and + * open-code everything. + */ +static inline void snd_sdw_params_to_config(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct sdw_stream_config *stream_config, + struct sdw_port_config *port_config) +{ + stream_config->frame_rate = params_rate(params); + stream_config->ch_count = params_channels(params); + stream_config->bps = snd_pcm_format_width(params_format(params)); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + stream_config->direction = SDW_DATA_DIR_RX; + else + stream_config->direction = SDW_DATA_DIR_TX; + + port_config->ch_mask = GENMASK(stream_config->ch_count - 1, 0); +} + +#endif
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/max98373-sdw.c | 31 +++++++++++-------------------- 1 file changed, 11 insertions(+), 20 deletions(-)
diff --git a/sound/soc/codecs/max98373-sdw.c b/sound/soc/codecs/max98373-sdw.c index 899965b19d12d..3cd1be743d9ee 100644 --- a/sound/soc/codecs/max98373-sdw.c +++ b/sound/soc/codecs/max98373-sdw.c @@ -10,6 +10,7 @@ #include <linux/slab.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc.h> #include <sound/tlv.h> #include <linux/of.h> @@ -533,10 +534,8 @@ static int max98373_sdw_dai_hw_params(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); - - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; int ret, chan_sz, sampling_rate;
@@ -548,28 +547,20 @@ static int max98373_sdw_dai_hw_params(struct snd_pcm_substream *substream, if (!max98373->slave) return -EINVAL;
+ snd_sdw_params_to_config(substream, params, &stream_config, &port_config); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; port_config.num = 1; + + if (max98373->slot) { + stream_config.ch_count = max98373->slot; + port_config.ch_mask = max98373->rx_mask; + } } else { - direction = SDW_DATA_DIR_TX; port_config.num = 3; - }
- stream_config.frame_rate = params_rate(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - if (max98373->slot && direction == SDW_DATA_DIR_RX) { - stream_config.ch_count = max98373->slot; - port_config.ch_mask = max98373->rx_mask; - } else { /* only IV are supported by capture */ - if (direction == SDW_DATA_DIR_TX) - stream_config.ch_count = 2; - else - stream_config.ch_count = params_channels(params); - + stream_config.ch_count = 2; port_config.ch_mask = GENMASK((int)stream_config.ch_count - 1, 0); }
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/rt1308-sdw.c | 33 +++++++++++---------------------- 1 file changed, 11 insertions(+), 22 deletions(-)
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c index 7f4248284f35e..ca2790d63b719 100644 --- a/sound/soc/codecs/rt1308-sdw.c +++ b/sound/soc/codecs/rt1308-sdw.c @@ -17,6 +17,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/initval.h> @@ -553,11 +554,10 @@ static int rt1308_sdw_hw_params(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct rt1308_sdw_priv *rt1308 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int retval, port, num_channels, ch_mask; + int retval;
dev_dbg(dai->dev, "%s %s", __func__, dai->name); stream = snd_soc_dai_get_dma_data(dai, substream); @@ -569,30 +569,19 @@ static int rt1308_sdw_hw_params(struct snd_pcm_substream *substream, return -EINVAL;
/* SoundWire specific configuration */ + snd_sdw_params_to_config(substream, params, &stream_config, &port_config); + /* port 1 for playback */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; - port = 1; - } else { + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + port_config.num = 1; + else return -EINVAL; - }
if (rt1308->slots) { - num_channels = rt1308->slots; - ch_mask = rt1308->rx_mask; - } else { - num_channels = params_channels(params); - ch_mask = (1 << num_channels) - 1; + stream_config.ch_count = rt1308->slots; + port_config.ch_mask = rt1308->rx_mask; }
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = num_channels; - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - port_config.ch_mask = ch_mask; - port_config.num = port; - retval = sdw_stream_add_slave(rt1308->sdw_slave, &stream_config, &port_config, 1, stream->sdw_stream); if (retval) {
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/rt1316-sdw.c | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-)
diff --git a/sound/soc/codecs/rt1316-sdw.c b/sound/soc/codecs/rt1316-sdw.c index 2db7ee6c6d334..e6294cc7a9954 100644 --- a/sound/soc/codecs/rt1316-sdw.c +++ b/sound/soc/codecs/rt1316-sdw.c @@ -14,6 +14,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc-dapm.h> #include <sound/initval.h> #include "rt1316-sdw.h" @@ -530,11 +531,10 @@ static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int retval, port, num_channels, ch_mask; + int retval;
dev_dbg(dai->dev, "%s %s", __func__, dai->name); stream = snd_soc_dai_get_dma_data(dai, substream); @@ -546,25 +546,13 @@ static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream, return -EINVAL;
/* SoundWire specific configuration */ - /* port 1 for playback */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; - port = 1; - } else { - direction = SDW_DATA_DIR_TX; - port = 2; - } - - num_channels = params_channels(params); - ch_mask = (1 << num_channels) - 1; + snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = num_channels; - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - port_config.ch_mask = ch_mask; - port_config.num = port; + /* port 1 for playback */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + port_config.num = 1; + else + port_config.num = 2;
retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config, &port_config, 1, stream->sdw_stream);
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/rt5682-sdw.c | 28 +++++++++------------------- 1 file changed, 9 insertions(+), 19 deletions(-)
diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c index c1a94229dc7e3..d8a573dcb771b 100644 --- a/sound/soc/codecs/rt5682-sdw.c +++ b/sound/soc/codecs/rt5682-sdw.c @@ -24,6 +24,7 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/jack.h> +#include <sound/sdw.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/initval.h> @@ -130,11 +131,10 @@ static int rt5682_sdw_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int retval, port, num_channels; + int retval; unsigned int val_p = 0, val_c = 0, osr_p = 0, osr_c = 0;
dev_dbg(dai->dev, "%s %s", __func__, dai->name); @@ -147,22 +147,12 @@ static int rt5682_sdw_hw_params(struct snd_pcm_substream *substream, return -EINVAL;
/* SoundWire specific configuration */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; - port = 1; - } else { - direction = SDW_DATA_DIR_TX; - port = 2; - } + snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - num_channels = params_channels(params); - port_config.ch_mask = (1 << (num_channels)) - 1; - port_config.num = port; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + port_config.num = 1; + else + port_config.num = 2;
retval = sdw_stream_add_slave(rt5682->slave, &stream_config, &port_config, 1, stream->sdw_stream);
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/rt700.c | 32 +++++++++++--------------------- 1 file changed, 11 insertions(+), 21 deletions(-)
diff --git a/sound/soc/codecs/rt700.c b/sound/soc/codecs/rt700.c index 055c3ae974d80..6534c9b514428 100644 --- a/sound/soc/codecs/rt700.c +++ b/sound/soc/codecs/rt700.c @@ -19,6 +19,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/initval.h> @@ -910,11 +911,10 @@ static int rt700_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int retval, port, num_channels; + int retval; unsigned int val = 0;
dev_dbg(dai->dev, "%s %s", __func__, dai->name); @@ -927,35 +927,25 @@ static int rt700_pcm_hw_params(struct snd_pcm_substream *substream, return -EINVAL;
/* SoundWire specific configuration */ + snd_sdw_params_to_config(substream, params, &stream_config, &port_config); + /* This code assumes port 1 for playback and port 2 for capture */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; - port = 1; - } else { - direction = SDW_DATA_DIR_TX; - port = 2; - } + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + port_config.num = 1; + else + port_config.num = 2;
switch (dai->id) { case RT700_AIF1: break; case RT700_AIF2: - port += 2; + port_config.num += 2; break; default: dev_err(component->dev, "Invalid DAI id %d\n", dai->id); return -EINVAL; }
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - num_channels = params_channels(params); - port_config.ch_mask = (1 << (num_channels)) - 1; - port_config.num = port; - retval = sdw_stream_add_slave(rt700->slave, &stream_config, &port_config, 1, stream->sdw_stream); if (retval) {
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/rt711-sdca.c | 27 +++++++++------------------ sound/soc/codecs/rt711.c | 27 +++++++++------------------ 2 files changed, 18 insertions(+), 36 deletions(-)
diff --git a/sound/soc/codecs/rt711-sdca.c b/sound/soc/codecs/rt711-sdca.c index 9252681219017..b78dd5994edbf 100644 --- a/sound/soc/codecs/rt711-sdca.c +++ b/sound/soc/codecs/rt711-sdca.c @@ -18,6 +18,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc-dapm.h> #include <sound/initval.h> #include <sound/tlv.h> @@ -1257,11 +1258,10 @@ static int rt711_sdca_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct rt711_sdca_priv *rt711 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int retval, port, num_channels; + int retval; unsigned int sampling_rate;
dev_dbg(dai->dev, "%s %s", __func__, dai->name); @@ -1274,28 +1274,19 @@ static int rt711_sdca_pcm_hw_params(struct snd_pcm_substream *substream, return -EINVAL;
/* SoundWire specific configuration */ + snd_sdw_params_to_config(substream, params, &stream_config, &port_config); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; - port = 3; + port_config.num = 3; } else { - direction = SDW_DATA_DIR_TX; if (dai->id == RT711_AIF1) - port = 2; + port_config.num = 2; else if (dai->id == RT711_AIF2) - port = 4; + port_config.num = 4; else return -EINVAL; }
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - num_channels = params_channels(params); - port_config.ch_mask = GENMASK(num_channels - 1, 0); - port_config.num = port; - retval = sdw_stream_add_slave(rt711->slave, &stream_config, &port_config, 1, stream->sdw_stream); if (retval) { diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c index 1bf6180891942..78e1da9b07388 100644 --- a/sound/soc/codecs/rt711.c +++ b/sound/soc/codecs/rt711.c @@ -19,6 +19,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/initval.h> @@ -999,11 +1000,10 @@ static int rt711_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int retval, port, num_channels; + int retval; unsigned int val = 0;
dev_dbg(dai->dev, "%s %s", __func__, dai->name); @@ -1016,28 +1016,19 @@ static int rt711_pcm_hw_params(struct snd_pcm_substream *substream, return -EINVAL;
/* SoundWire specific configuration */ + snd_sdw_params_to_config(substream, params, &stream_config, &port_config); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; - port = 3; + port_config.num = 3; } else { - direction = SDW_DATA_DIR_TX; if (dai->id == RT711_AIF1) - port = 4; + port_config.num = 4; else if (dai->id == RT711_AIF2) - port = 2; + port_config.num = 2; else return -EINVAL; }
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - num_channels = params_channels(params); - port_config.ch_mask = (1 << (num_channels)) - 1; - port_config.num = port; - retval = sdw_stream_add_slave(rt711->slave, &stream_config, &port_config, 1, stream->sdw_stream); if (retval) {
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/rt715-sdca.c | 25 ++++++++----------------- sound/soc/codecs/rt715.c | 25 ++++++++----------------- 2 files changed, 16 insertions(+), 34 deletions(-)
diff --git a/sound/soc/codecs/rt715-sdca.c b/sound/soc/codecs/rt715-sdca.c index ce8bbc76199a8..1fca7a3f46eac 100644 --- a/sound/soc/codecs/rt715-sdca.c +++ b/sound/soc/codecs/rt715-sdca.c @@ -20,6 +20,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/initval.h> @@ -820,11 +821,10 @@ static int rt715_sdca_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct rt715_sdca_priv *rt715 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct rt715_sdw_stream_data *stream; - int retval, port, num_channels; + int retval; unsigned int val;
stream = snd_soc_dai_get_dma_data(dai, substream); @@ -835,16 +835,16 @@ static int rt715_sdca_pcm_hw_params(struct snd_pcm_substream *substream, if (!rt715->slave) return -EINVAL;
+ snd_sdw_params_to_config(substream, params, &stream_config, &port_config); + switch (dai->id) { case RT715_AIF1: - direction = SDW_DATA_DIR_TX; - port = 6; + port_config.num = 6; rt715_sdca_index_write(rt715, RT715_VENDOR_REG, RT715_SDW_INPUT_SEL, 0xa500); break; case RT715_AIF2: - direction = SDW_DATA_DIR_TX; - port = 4; + port_config.num = 4; rt715_sdca_index_write(rt715, RT715_VENDOR_REG, RT715_SDW_INPUT_SEL, 0xaf00); break; @@ -853,15 +853,6 @@ static int rt715_sdca_pcm_hw_params(struct snd_pcm_substream *substream, return -EINVAL; }
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - num_channels = params_channels(params); - port_config.ch_mask = GENMASK(num_channels - 1, 0); - port_config.num = port; - retval = sdw_stream_add_slave(rt715->slave, &stream_config, &port_config, 1, stream->sdw_stream); if (retval) { diff --git a/sound/soc/codecs/rt715.c b/sound/soc/codecs/rt715.c index e93240521c74e..917a04092da27 100644 --- a/sound/soc/codecs/rt715.c +++ b/sound/soc/codecs/rt715.c @@ -28,6 +28,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/initval.h> @@ -801,11 +802,10 @@ static int rt715_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct rt715_priv *rt715 = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int retval, port, num_channels; + int retval; unsigned int val = 0;
stream = snd_soc_dai_get_dma_data(dai, substream); @@ -816,15 +816,15 @@ static int rt715_pcm_hw_params(struct snd_pcm_substream *substream, if (!rt715->slave) return -EINVAL;
+ snd_sdw_params_to_config(substream, params, &stream_config, &port_config); + switch (dai->id) { case RT715_AIF1: - direction = SDW_DATA_DIR_TX; - port = 6; + port_config.num = 6; rt715_index_write(rt715->regmap, RT715_SDW_INPUT_SEL, 0xa500); break; case RT715_AIF2: - direction = SDW_DATA_DIR_TX; - port = 4; + port_config.num = 4; rt715_index_write(rt715->regmap, RT715_SDW_INPUT_SEL, 0xa000); break; default: @@ -832,15 +832,6 @@ static int rt715_pcm_hw_params(struct snd_pcm_substream *substream, return -EINVAL; }
- stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; - - num_channels = params_channels(params); - port_config.ch_mask = (1 << (num_channels)) - 1; - port_config.num = port; - retval = sdw_stream_add_slave(rt715->slave, &stream_config, &port_config, 1, stream->sdw_stream); if (retval) {
The conversion from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com ---
Changes since v1: - Correct spelling error in commit message
sound/soc/codecs/sdw-mockup.c | 28 ++++++++-------------------- 1 file changed, 8 insertions(+), 20 deletions(-)
diff --git a/sound/soc/codecs/sdw-mockup.c b/sound/soc/codecs/sdw-mockup.c index 288b55368d2a4..af52f2728854b 100644 --- a/sound/soc/codecs/sdw-mockup.c +++ b/sound/soc/codecs/sdw-mockup.c @@ -16,6 +16,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/sdw.h> #include <sound/soc.h>
struct sdw_mockup_priv { @@ -80,12 +81,9 @@ static int sdw_mockup_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct sdw_mockup_priv *sdw_mockup = snd_soc_component_get_drvdata(component); - struct sdw_stream_config stream_config; - struct sdw_port_config port_config; - enum sdw_data_direction direction; + struct sdw_stream_config stream_config = {0}; + struct sdw_port_config port_config = {0}; struct sdw_stream_data *stream; - int num_channels; - int port; int ret;
stream = snd_soc_dai_get_dma_data(dai, substream); @@ -96,22 +94,12 @@ static int sdw_mockup_pcm_hw_params(struct snd_pcm_substream *substream, return -EINVAL;
/* SoundWire specific configuration */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - direction = SDW_DATA_DIR_RX; - port = 1; - } else { - direction = SDW_DATA_DIR_TX; - port = 8; - } - - stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); - stream_config.bps = snd_pcm_format_width(params_format(params)); - stream_config.direction = direction; + snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
- num_channels = params_channels(params); - port_config.ch_mask = (1 << num_channels) - 1; - port_config.num = port; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + port_config.num = 1; + else + port_config.num = 8;
ret = sdw_stream_add_slave(sdw_mockup->slave, &stream_config, &port_config, 1, stream->sdw_stream);
participants (1)
-
Charles Keepax