144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright(c) 2024-2025 Intel Corporation
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//
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// Author: Cezary Rojewski <cezary.rojewski@intel.com>
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//
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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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static const struct snd_soc_dapm_widget card_widgets[] = {
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SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL),
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SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL),
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SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL),
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SND_SOC_DAPM_LINE("CPB Line Out", NULL),
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SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL),
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SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL),
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SND_SOC_DAPM_LINE("CPB Line In", NULL),
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};
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static const struct snd_soc_dapm_route card_routes[] = {
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{ "CPB Stereo HP 1", NULL, "AOUT1L" },
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{ "CPB Stereo HP 1", NULL, "AOUT1R" },
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{ "CPB Stereo HP 2", NULL, "AOUT2L" },
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{ "CPB Stereo HP 2", NULL, "AOUT2R" },
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{ "CPB Stereo HP 3", NULL, "AOUT3L" },
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{ "CPB Stereo HP 3", NULL, "AOUT3R" },
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{ "CPB Line Out", NULL, "AOUT4L" },
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{ "CPB Line Out", NULL, "AOUT4R" },
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{ "AIN1L", NULL, "CPB Stereo Mic 1" },
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{ "AIN1R", NULL, "CPB Stereo Mic 1" },
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{ "AIN2L", NULL, "CPB Stereo Mic 2" },
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{ "AIN2R", NULL, "CPB Stereo Mic 2" },
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{ "AIN3L", NULL, "CPB Line In" },
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{ "AIN3R", NULL, "CPB Line In" },
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};
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static int avs_pcm3168a_be_fixup(struct snd_soc_pcm_runtime *runtime,
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struct snd_pcm_hw_params *params)
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{
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struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
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/* Set SSP to 24 bit. */
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snd_mask_none(fmt);
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snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
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return 0;
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}
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SND_SOC_DAILINK_DEF(pcm3168a_dac,
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DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-dac")));
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SND_SOC_DAILINK_DEF(pcm3168a_adc,
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DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-adc")));
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SND_SOC_DAILINK_DEF(cpu_ssp0, DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
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SND_SOC_DAILINK_DEF(cpu_ssp2, DAILINK_COMP_ARRAY(COMP_CPU("SSP2 Pin")));
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static int avs_create_dai_links(struct device *dev, struct snd_soc_dai_link **links, int *num_links)
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{
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struct snd_soc_dai_link_component *platform;
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struct snd_soc_dai_link *dl;
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const int num_dl = 2;
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dl = devm_kcalloc(dev, num_dl, sizeof(*dl), GFP_KERNEL);
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platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
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if (!dl || !platform)
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return -ENOMEM;
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platform->name = dev_name(dev);
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dl[0].num_cpus = 1;
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dl[0].num_codecs = 1;
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dl[0].platforms = platform;
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dl[0].num_platforms = 1;
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dl[0].dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP;
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dl[0].be_hw_params_fixup = avs_pcm3168a_be_fixup;
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dl[0].nonatomic = 1;
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dl[0].no_pcm = 1;
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memcpy(&dl[1], &dl[0], sizeof(*dl));
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dl[0].name = "SSP0-Codec-dac";
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dl[0].cpus = cpu_ssp0;
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dl[0].codecs = pcm3168a_dac;
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dl[1].name = "SSP2-Codec-adc";
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dl[1].cpus = cpu_ssp2;
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dl[1].codecs = pcm3168a_adc;
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*links = dl;
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*num_links = num_dl;
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return 0;
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}
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static int avs_pcm3168a_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct snd_soc_card *card;
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int ret;
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card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
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if (!card)
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return -ENOMEM;
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ret = avs_create_dai_links(dev, &card->dai_link, &card->num_links);
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if (ret)
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return ret;
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card->name = "avs_pcm3168a";
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card->dev = dev;
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card->owner = THIS_MODULE;
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card->dapm_widgets = card_widgets;
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card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
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card->dapm_routes = card_routes;
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card->num_dapm_routes = ARRAY_SIZE(card_routes);
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card->fully_routed = true;
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return devm_snd_soc_register_card(dev, card);
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}
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static const struct platform_device_id avs_pcm3168a_driver_ids[] = {
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{
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.name = "avs_pcm3168a",
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},
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{},
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};
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MODULE_DEVICE_TABLE(platform, avs_pcm3168a_driver_ids);
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static struct platform_driver avs_pcm3168a_driver = {
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.probe = avs_pcm3168a_probe,
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.driver = {
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.name = "avs_pcm3168a",
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.pm = &snd_soc_pm_ops,
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},
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.id_table = avs_pcm3168a_driver_ids,
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};
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module_platform_driver(avs_pcm3168a_driver);
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MODULE_DESCRIPTION("Intel pcm3168a machine driver");
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MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
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MODULE_LICENSE("GPL");
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