138 lines
3.6 KiB
C
138 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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