1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2024-2025 Intel Corporation 4 // 5 // Author: Cezary Rojewski <cezary.rojewski@intel.com> 6 // 7 8 #include <linux/module.h> 9 #include <linux/platform_device.h> 10 #include <sound/core.h> 11 #include <sound/pcm.h> 12 #include <sound/pcm_params.h> 13 #include <sound/soc.h> 14 15 static const struct snd_soc_dapm_widget card_widgets[] = { 16 SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL), 17 SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL), 18 SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL), 19 SND_SOC_DAPM_LINE("CPB Line Out", NULL), 20 SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL), 21 SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL), 22 SND_SOC_DAPM_LINE("CPB Line In", NULL), 23 }; 24 25 static const struct snd_soc_dapm_route card_routes[] = { 26 { "CPB Stereo HP 1", NULL, "AOUT1L" }, 27 { "CPB Stereo HP 1", NULL, "AOUT1R" }, 28 { "CPB Stereo HP 2", NULL, "AOUT2L" }, 29 { "CPB Stereo HP 2", NULL, "AOUT2R" }, 30 { "CPB Stereo HP 3", NULL, "AOUT3L" }, 31 { "CPB Stereo HP 3", NULL, "AOUT3R" }, 32 { "CPB Line Out", NULL, "AOUT4L" }, 33 { "CPB Line Out", NULL, "AOUT4R" }, 34 35 { "AIN1L", NULL, "CPB Stereo Mic 1" }, 36 { "AIN1R", NULL, "CPB Stereo Mic 1" }, 37 { "AIN2L", NULL, "CPB Stereo Mic 2" }, 38 { "AIN2R", NULL, "CPB Stereo Mic 2" }, 39 { "AIN3L", NULL, "CPB Line In" }, 40 { "AIN3R", NULL, "CPB Line In" }, 41 }; 42 43 static int avs_pcm3168a_be_fixup(struct snd_soc_pcm_runtime *runtime, 44 struct snd_pcm_hw_params *params) 45 { 46 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 47 48 /* Set SSP to 24 bit. */ 49 snd_mask_none(fmt); 50 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 51 52 return 0; 53 } 54 55 SND_SOC_DAILINK_DEF(pcm3168a_dac, 56 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-dac"))); 57 SND_SOC_DAILINK_DEF(pcm3168a_adc, 58 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-adc"))); 59 SND_SOC_DAILINK_DEF(cpu_ssp0, DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin"))); 60 SND_SOC_DAILINK_DEF(cpu_ssp2, DAILINK_COMP_ARRAY(COMP_CPU("SSP2 Pin"))); 61 62 static int avs_create_dai_links(struct device *dev, struct snd_soc_dai_link **links, int *num_links) 63 { 64 struct snd_soc_dai_link_component *platform; 65 struct snd_soc_dai_link *dl; 66 const int num_dl = 2; 67 68 dl = devm_kcalloc(dev, num_dl, sizeof(*dl), GFP_KERNEL); 69 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 70 if (!dl || !platform) 71 return -ENOMEM; 72 73 platform->name = dev_name(dev); 74 dl[0].num_cpus = 1; 75 dl[0].num_codecs = 1; 76 dl[0].platforms = platform; 77 dl[0].num_platforms = 1; 78 dl[0].dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP; 79 dl[0].be_hw_params_fixup = avs_pcm3168a_be_fixup; 80 dl[0].nonatomic = 1; 81 dl[0].no_pcm = 1; 82 memcpy(&dl[1], &dl[0], sizeof(*dl)); 83 84 dl[0].name = "SSP0-Codec-dac"; 85 dl[0].cpus = cpu_ssp0; 86 dl[0].codecs = pcm3168a_dac; 87 dl[1].name = "SSP2-Codec-adc"; 88 dl[1].cpus = cpu_ssp2; 89 dl[1].codecs = pcm3168a_adc; 90 91 *links = dl; 92 *num_links = num_dl; 93 return 0; 94 } 95 96 static int avs_pcm3168a_probe(struct platform_device *pdev) 97 { 98 struct device *dev = &pdev->dev; 99 struct snd_soc_card *card; 100 int ret; 101 102 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 103 if (!card) 104 return -ENOMEM; 105 106 ret = avs_create_dai_links(dev, &card->dai_link, &card->num_links); 107 if (ret) 108 return ret; 109 110 card->name = "avs_pcm3168a"; 111 card->dev = dev; 112 card->owner = THIS_MODULE; 113 card->dapm_widgets = card_widgets; 114 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 115 card->dapm_routes = card_routes; 116 card->num_dapm_routes = ARRAY_SIZE(card_routes); 117 card->fully_routed = true; 118 119 return devm_snd_soc_register_card(dev, card); 120 } 121 122 static const struct platform_device_id avs_pcm3168a_driver_ids[] = { 123 { 124 .name = "avs_pcm3168a", 125 }, 126 {}, 127 }; 128 MODULE_DEVICE_TABLE(platform, avs_pcm3168a_driver_ids); 129 130 static struct platform_driver avs_pcm3168a_driver = { 131 .probe = avs_pcm3168a_probe, 132 .driver = { 133 .name = "avs_pcm3168a", 134 .pm = &snd_soc_pm_ops, 135 }, 136 .id_table = avs_pcm3168a_driver_ids, 137 }; 138 139 module_platform_driver(avs_pcm3168a_driver); 140 141 MODULE_DESCRIPTION("Intel pcm3168a machine driver"); 142 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>"); 143 MODULE_LICENSE("GPL"); 144