1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2021-2023 Intel Corporation 4 // 5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com> 6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com> 7 // 8 9 #include <linux/clk.h> 10 #include <linux/input.h> 11 #include <linux/module.h> 12 #include <sound/jack.h> 13 #include <sound/pcm.h> 14 #include <sound/pcm_params.h> 15 #include <sound/soc.h> 16 #include <sound/soc-acpi.h> 17 #include "../../../codecs/rt5514.h" 18 #include "../utils.h" 19 20 #define RT5514_CODEC_DAI "rt5514-aif1" 21 22 static const struct snd_soc_dapm_widget card_widgets[] = { 23 SND_SOC_DAPM_MIC("DMIC", NULL), 24 }; 25 26 static const struct snd_soc_dapm_route card_base_routes[] = { 27 /* DMIC */ 28 { "DMIC1L", NULL, "DMIC" }, 29 { "DMIC1R", NULL, "DMIC" }, 30 { "DMIC2L", NULL, "DMIC" }, 31 { "DMIC2R", NULL, "DMIC" }, 32 }; 33 34 static int avs_rt5514_codec_init(struct snd_soc_pcm_runtime *runtime) 35 { 36 int ret = snd_soc_dapm_ignore_suspend(&runtime->card->dapm, "DMIC"); 37 38 if (ret) 39 dev_err(runtime->dev, "DMIC - Ignore suspend failed = %d\n", ret); 40 41 return ret; 42 } 43 44 static int avs_rt5514_be_fixup(struct snd_soc_pcm_runtime *runtime, 45 struct snd_pcm_hw_params *params) 46 { 47 struct snd_interval *rate, *channels; 48 struct snd_mask *fmt; 49 50 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 51 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 52 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 53 54 rate->min = rate->max = 48000; 55 channels->min = channels->max = 4; 56 57 snd_mask_none(fmt); 58 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); 59 60 return 0; 61 } 62 63 static int avs_rt5514_hw_params(struct snd_pcm_substream *substream, 64 struct snd_pcm_hw_params *params) 65 { 66 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 67 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 68 int ret; 69 70 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0, 8, 16); 71 if (ret < 0) { 72 dev_err(rtd->dev, "set TDM slot err:%d\n", ret); 73 return ret; 74 } 75 76 ret = snd_soc_dai_set_sysclk(codec_dai, RT5514_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN); 77 if (ret < 0) 78 dev_err(rtd->dev, "set sysclk err: %d\n", ret); 79 80 return ret; 81 } 82 83 static const struct snd_soc_ops avs_rt5514_ops = { 84 .hw_params = avs_rt5514_hw_params, 85 }; 86 87 static int avs_create_dai_link(struct device *dev, int ssp_port, int tdm_slot, 88 struct snd_soc_dai_link **dai_link) 89 { 90 struct snd_soc_dai_link_component *platform; 91 struct snd_soc_dai_link *dl; 92 93 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 94 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 95 if (!dl || !platform) 96 return -ENOMEM; 97 98 dl->name = devm_kasprintf(dev, GFP_KERNEL, 99 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot)); 100 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 101 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); 102 if (!dl->name || !dl->cpus || !dl->codecs) 103 return -ENOMEM; 104 105 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 106 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot)); 107 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-10EC5514:00"); 108 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT5514_CODEC_DAI); 109 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) 110 return -ENOMEM; 111 112 platform->name = dev_name(dev); 113 dl->num_cpus = 1; 114 dl->num_codecs = 1; 115 dl->platforms = platform; 116 dl->num_platforms = 1; 117 dl->id = 0; 118 dl->dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC; 119 dl->init = avs_rt5514_codec_init; 120 dl->be_hw_params_fixup = avs_rt5514_be_fixup; 121 dl->nonatomic = 1; 122 dl->no_pcm = 1; 123 dl->capture_only = 1; 124 dl->ops = &avs_rt5514_ops; 125 126 *dai_link = dl; 127 128 return 0; 129 } 130 131 static int avs_rt5514_probe(struct platform_device *pdev) 132 { 133 struct snd_soc_dai_link *dai_link; 134 struct snd_soc_acpi_mach *mach; 135 struct avs_mach_pdata *pdata; 136 struct snd_soc_card *card; 137 struct device *dev = &pdev->dev; 138 int ssp_port, tdm_slot, ret; 139 140 mach = dev_get_platdata(dev); 141 pdata = mach->pdata; 142 143 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot); 144 if (ret) 145 return ret; 146 147 ret = avs_create_dai_link(dev, ssp_port, tdm_slot, &dai_link); 148 if (ret) { 149 dev_err(dev, "Failed to create dai link: %d", ret); 150 return ret; 151 } 152 153 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 154 if (!card) 155 return -ENOMEM; 156 157 if (pdata->obsolete_card_names) { 158 card->name = "avs_rt5514"; 159 } else { 160 card->driver_name = "avs_rt5514"; 161 card->long_name = card->name = "AVS I2S ALC5514"; 162 } 163 card->dev = dev; 164 card->owner = THIS_MODULE; 165 card->dai_link = dai_link; 166 card->num_links = 1; 167 card->dapm_widgets = card_widgets; 168 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 169 card->dapm_routes = card_base_routes; 170 card->num_dapm_routes = ARRAY_SIZE(card_base_routes); 171 card->fully_routed = true; 172 173 return devm_snd_soc_register_deferrable_card(dev, card); 174 } 175 176 static const struct platform_device_id avs_rt5514_driver_ids[] = { 177 { 178 .name = "avs_rt5514", 179 }, 180 {}, 181 }; 182 MODULE_DEVICE_TABLE(platform, avs_rt5514_driver_ids); 183 184 static struct platform_driver avs_rt5514_driver = { 185 .probe = avs_rt5514_probe, 186 .driver = { 187 .name = "avs_rt5514", 188 .pm = &snd_soc_pm_ops, 189 }, 190 .id_table = avs_rt5514_driver_ids, 191 }; 192 193 module_platform_driver(avs_rt5514_driver); 194 195 MODULE_DESCRIPTION("Intel rt5514 machine driver"); 196 MODULE_LICENSE("GPL"); 197