1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2021-2023 Intel Corporation. All rights reserved. 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, const char *platform_name, int ssp_port, 88 int tdm_slot, 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 platform->name = platform_name; 99 100 dl->name = devm_kasprintf(dev, GFP_KERNEL, 101 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot)); 102 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 103 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); 104 if (!dl->name || !dl->cpus || !dl->codecs) 105 return -ENOMEM; 106 107 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 108 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot)); 109 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-10EC5514:00"); 110 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT5514_CODEC_DAI); 111 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) 112 return -ENOMEM; 113 114 dl->num_cpus = 1; 115 dl->num_codecs = 1; 116 dl->platforms = platform; 117 dl->num_platforms = 1; 118 dl->id = 0; 119 dl->dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; 120 dl->init = avs_rt5514_codec_init; 121 dl->be_hw_params_fixup = avs_rt5514_be_fixup; 122 dl->nonatomic = 1; 123 dl->no_pcm = 1; 124 dl->dpcm_capture = 1; 125 dl->ops = &avs_rt5514_ops; 126 127 *dai_link = dl; 128 129 return 0; 130 } 131 132 static int avs_rt5514_probe(struct platform_device *pdev) 133 { 134 struct snd_soc_dai_link *dai_link; 135 struct snd_soc_acpi_mach *mach; 136 struct snd_soc_card *card; 137 struct device *dev = &pdev->dev; 138 const char *pname; 139 int ssp_port, tdm_slot, ret; 140 141 mach = dev_get_platdata(dev); 142 pname = mach->mach_params.platform; 143 144 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot); 145 if (ret) 146 return ret; 147 148 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link); 149 if (ret) { 150 dev_err(dev, "Failed to create dai link: %d", ret); 151 return ret; 152 } 153 154 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 155 if (!card) 156 return -ENOMEM; 157 158 card->name = "avs_rt5514"; 159 card->dev = dev; 160 card->owner = THIS_MODULE; 161 card->dai_link = dai_link; 162 card->num_links = 1; 163 card->dapm_widgets = card_widgets; 164 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 165 card->dapm_routes = card_base_routes; 166 card->num_dapm_routes = ARRAY_SIZE(card_base_routes); 167 card->fully_routed = true; 168 169 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 170 if (ret) 171 return ret; 172 173 return devm_snd_soc_register_card(dev, card); 174 } 175 176 static struct platform_driver avs_rt5514_driver = { 177 .probe = avs_rt5514_probe, 178 .driver = { 179 .name = "avs_rt5514", 180 .pm = &snd_soc_pm_ops, 181 }, 182 }; 183 184 module_platform_driver(avs_rt5514_driver); 185 186 MODULE_LICENSE("GPL"); 187 MODULE_ALIAS("platform:avs_rt5514"); 188