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 #include <sound/soc-acpi.h> 15 #include "../utils.h" 16 17 static const struct snd_soc_dapm_widget card_widgets[] = { 18 SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL), 19 SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL), 20 SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL), 21 SND_SOC_DAPM_LINE("CPB Line Out", NULL), 22 SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL), 23 SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL), 24 SND_SOC_DAPM_LINE("CPB Line In", NULL), 25 }; 26 27 static const struct snd_soc_dapm_route card_routes[] = { 28 { "CPB Stereo HP 1", NULL, "AOUT1L" }, 29 { "CPB Stereo HP 1", NULL, "AOUT1R" }, 30 { "CPB Stereo HP 2", NULL, "AOUT2L" }, 31 { "CPB Stereo HP 2", NULL, "AOUT2R" }, 32 { "CPB Stereo HP 3", NULL, "AOUT3L" }, 33 { "CPB Stereo HP 3", NULL, "AOUT3R" }, 34 { "CPB Line Out", NULL, "AOUT4L" }, 35 { "CPB Line Out", NULL, "AOUT4R" }, 36 37 { "AIN1L", NULL, "CPB Stereo Mic 1" }, 38 { "AIN1R", NULL, "CPB Stereo Mic 1" }, 39 { "AIN2L", NULL, "CPB Stereo Mic 2" }, 40 { "AIN2R", NULL, "CPB Stereo Mic 2" }, 41 { "AIN3L", NULL, "CPB Line In" }, 42 { "AIN3R", NULL, "CPB Line In" }, 43 }; 44 45 static int avs_pcm3168a_be_fixup(struct snd_soc_pcm_runtime *runtime, 46 struct snd_pcm_hw_params *params) 47 { 48 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 49 50 /* Set SSP to 24 bit. */ 51 snd_mask_none(fmt); 52 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 53 54 return 0; 55 } 56 57 SND_SOC_DAILINK_DEF(pcm3168a_dac, 58 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-dac"))); 59 SND_SOC_DAILINK_DEF(pcm3168a_adc, 60 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-adc"))); 61 SND_SOC_DAILINK_DEF(cpu_ssp0, DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin"))); 62 SND_SOC_DAILINK_DEF(cpu_ssp2, DAILINK_COMP_ARRAY(COMP_CPU("SSP2 Pin"))); 63 64 static int avs_create_dai_links(struct device *dev, struct snd_soc_dai_link **links, int *num_links) 65 { 66 struct snd_soc_dai_link_component *platform; 67 struct snd_soc_dai_link *dl; 68 const int num_dl = 2; 69 70 dl = devm_kcalloc(dev, num_dl, sizeof(*dl), GFP_KERNEL); 71 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 72 if (!dl || !platform) 73 return -ENOMEM; 74 75 platform->name = dev_name(dev); 76 dl[0].num_cpus = 1; 77 dl[0].num_codecs = 1; 78 dl[0].platforms = platform; 79 dl[0].num_platforms = 1; 80 dl[0].dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP; 81 dl[0].be_hw_params_fixup = avs_pcm3168a_be_fixup; 82 dl[0].nonatomic = 1; 83 dl[0].no_pcm = 1; 84 memcpy(&dl[1], &dl[0], sizeof(*dl)); 85 86 dl[0].name = "SSP0-Codec-dac"; 87 dl[0].cpus = cpu_ssp0; 88 dl[0].codecs = pcm3168a_dac; 89 dl[1].name = "SSP2-Codec-adc"; 90 dl[1].cpus = cpu_ssp2; 91 dl[1].codecs = pcm3168a_adc; 92 93 *links = dl; 94 *num_links = num_dl; 95 return 0; 96 } 97 98 static int avs_pcm3168a_probe(struct platform_device *pdev) 99 { 100 struct snd_soc_acpi_mach *mach; 101 struct avs_mach_pdata *pdata; 102 struct device *dev = &pdev->dev; 103 struct snd_soc_card *card; 104 int ret; 105 106 mach = dev_get_platdata(dev); 107 pdata = mach->pdata; 108 109 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 110 if (!card) 111 return -ENOMEM; 112 113 ret = avs_create_dai_links(dev, &card->dai_link, &card->num_links); 114 if (ret) 115 return ret; 116 117 if (pdata->obsolete_card_names) { 118 card->name = "avs_pcm3168a"; 119 } else { 120 card->driver_name = "avs_pcm3168a"; 121 card->long_name = card->name = "AVS I2S PCM3168A"; 122 } 123 card->dev = dev; 124 card->owner = THIS_MODULE; 125 card->dapm_widgets = card_widgets; 126 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 127 card->dapm_routes = card_routes; 128 card->num_dapm_routes = ARRAY_SIZE(card_routes); 129 card->fully_routed = true; 130 131 return devm_snd_soc_register_deferrable_card(dev, card); 132 } 133 134 static const struct platform_device_id avs_pcm3168a_driver_ids[] = { 135 { 136 .name = "avs_pcm3168a", 137 }, 138 {}, 139 }; 140 MODULE_DEVICE_TABLE(platform, avs_pcm3168a_driver_ids); 141 142 static struct platform_driver avs_pcm3168a_driver = { 143 .probe = avs_pcm3168a_probe, 144 .driver = { 145 .name = "avs_pcm3168a", 146 .pm = &snd_soc_pm_ops, 147 }, 148 .id_table = avs_pcm3168a_driver_ids, 149 }; 150 151 module_platform_driver(avs_pcm3168a_driver); 152 153 MODULE_DESCRIPTION("Intel pcm3168a machine driver"); 154 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>"); 155 MODULE_LICENSE("GPL"); 156