b831b4dca4
The cs42l43 has both a SPI master and an I2S interface, these can be used to populate 2 cs35l56 amplifiers as sidecar devices along side the cs42l43. Giving a system that looks like: +-----+ +---------+ <- SPI -> +---------+ | CPU | <- SDW -> | CS42L43 | | CS35L56 | +-----+ +---------+ <- I2S -> +---------+ Add a quirk to specify this feature is present and use it to add codec to codec DAI link to connect the amplifiers into the sound card, add appropriate widgets, and setup clocking on the amplifiers. Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20240426152123.36284-13-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// Intel SOF Machine Driver with Cirrus Logic CS35L56 Smart Amp
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-acpi.h>
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#include "sof_sdw_common.h"
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static const struct snd_soc_dapm_widget bridge_widgets[] = {
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SND_SOC_DAPM_SPK("Bridge Speaker", NULL),
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};
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static const struct snd_soc_dapm_route bridge_map[] = {
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{"Bridge Speaker", NULL, "AMPL SPK"},
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{"Bridge Speaker", NULL, "AMPR SPK"},
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};
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static const char * const bridge_cs35l56_name_prefixes[] = {
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"AMPL",
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"AMPR",
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};
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static int bridge_cs35l56_asp_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_card *card = rtd->card;
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int i, ret;
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unsigned int rx_mask = 3; // ASP RX1, RX2
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unsigned int tx_mask = 3; // ASP TX1, TX2
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struct snd_soc_dai *codec_dai;
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struct snd_soc_dai *cpu_dai;
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card->components = devm_kasprintf(card->dev, GFP_KERNEL,
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"%s spk:cs35l56-bridge",
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card->components);
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if (!card->components)
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return -ENOMEM;
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ret = snd_soc_dapm_new_controls(&card->dapm, bridge_widgets,
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ARRAY_SIZE(bridge_widgets));
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if (ret) {
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dev_err(card->dev, "widgets addition failed: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dapm_add_routes(&card->dapm, bridge_map, ARRAY_SIZE(bridge_map));
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if (ret) {
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dev_err(card->dev, "map addition failed: %d\n", ret);
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return ret;
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}
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/* 4 x 16-bit sample slots and FSYNC=48000, BCLK=3.072 MHz */
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for_each_rtd_codec_dais(rtd, i, codec_dai) {
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ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_mask, rx_mask, 4, 16);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, 3072000, SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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}
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for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
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ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, 4, 16);
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if (ret < 0)
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return ret;
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}
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return 0;
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}
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static const struct snd_soc_pcm_stream bridge_params = {
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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};
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SND_SOC_DAILINK_DEFS(bridge_dai,
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DAILINK_COMP_ARRAY(COMP_CODEC("cs42l43-codec", "cs42l43-asp")),
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DAILINK_COMP_ARRAY(COMP_CODEC("spi-cs35l56-left", "cs35l56-asp1"),
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COMP_CODEC("spi-cs35l56-right", "cs35l56-asp1")),
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DAILINK_COMP_ARRAY(COMP_PLATFORM("cs42l43-codec")));
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static const struct snd_soc_dai_link bridge_dai_template = {
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.name = "cs42l43-cs35l56",
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.init = bridge_cs35l56_asp_init,
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.c2c_params = &bridge_params,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBC_CFC,
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SND_SOC_DAILINK_REG(bridge_dai),
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};
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int bridge_cs35l56_count_sidecar(struct snd_soc_card *card,
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int *num_dais, int *num_devs)
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{
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if (sof_sdw_quirk & SOF_SIDECAR_AMPS) {
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(*num_dais)++;
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(*num_devs) += ARRAY_SIZE(bridge_cs35l56_name_prefixes);
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}
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return 0;
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}
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int bridge_cs35l56_add_sidecar(struct snd_soc_card *card,
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struct snd_soc_dai_link **dai_links,
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struct snd_soc_codec_conf **codec_conf)
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{
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if (sof_sdw_quirk & SOF_SIDECAR_AMPS) {
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**dai_links = bridge_dai_template;
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for (int i = 0; i < ARRAY_SIZE(bridge_cs35l56_name_prefixes); i++) {
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(*codec_conf)->dlc.name = (*dai_links)->codecs[i].name;
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(*codec_conf)->name_prefix = bridge_cs35l56_name_prefixes[i];
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(*codec_conf)++;
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}
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(*dai_links)++;
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}
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return 0;
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}
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int bridge_cs35l56_spk_init(struct snd_soc_card *card,
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struct snd_soc_dai_link *dai_links,
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struct sof_sdw_codec_info *info,
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bool playback)
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{
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if (sof_sdw_quirk & SOF_SIDECAR_AMPS)
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info->amp_num += ARRAY_SIZE(bridge_cs35l56_name_prefixes);
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return 0;
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}
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