1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Rockchip machine ASoC driver for boards using a MAX90809 CODEC. 4 * 5 * Copyright (c) 2014, ROCKCHIP CORPORATION. All rights reserved. 6 */ 7 8 #include <linux/module.h> 9 #include <linux/platform_device.h> 10 #include <linux/slab.h> 11 #include <linux/gpio.h> 12 #include <linux/of_gpio.h> 13 #include <sound/core.h> 14 #include <sound/jack.h> 15 #include <sound/pcm.h> 16 #include <sound/pcm_params.h> 17 #include <sound/soc.h> 18 19 #include "rockchip_i2s.h" 20 #include "../codecs/ts3a227e.h" 21 22 #define DRV_NAME "rockchip-snd-max98090" 23 24 static struct snd_soc_jack headset_jack; 25 26 /* Headset jack detection DAPM pins */ 27 static struct snd_soc_jack_pin headset_jack_pins[] = { 28 { 29 .pin = "Headphone", 30 .mask = SND_JACK_HEADPHONE, 31 }, 32 { 33 .pin = "Headset Mic", 34 .mask = SND_JACK_MICROPHONE, 35 }, 36 37 }; 38 39 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = { 40 SND_SOC_DAPM_HP("Headphone", NULL), 41 SND_SOC_DAPM_MIC("Headset Mic", NULL), 42 SND_SOC_DAPM_MIC("Int Mic", NULL), 43 SND_SOC_DAPM_SPK("Speaker", NULL), 44 }; 45 46 static const struct snd_soc_dapm_route rk_audio_map[] = { 47 {"IN34", NULL, "Headset Mic"}, 48 {"IN34", NULL, "MICBIAS"}, 49 {"Headset Mic", NULL, "MICBIAS"}, 50 {"DMICL", NULL, "Int Mic"}, 51 {"Headphone", NULL, "HPL"}, 52 {"Headphone", NULL, "HPR"}, 53 {"Speaker", NULL, "SPKL"}, 54 {"Speaker", NULL, "SPKR"}, 55 }; 56 57 static const struct snd_kcontrol_new rk_mc_controls[] = { 58 SOC_DAPM_PIN_SWITCH("Headphone"), 59 SOC_DAPM_PIN_SWITCH("Headset Mic"), 60 SOC_DAPM_PIN_SWITCH("Int Mic"), 61 SOC_DAPM_PIN_SWITCH("Speaker"), 62 }; 63 64 static int rk_jack_event(struct notifier_block *nb, unsigned long event, 65 void *data) 66 { 67 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 68 struct snd_soc_dapm_context *dapm = &jack->card->dapm; 69 70 if (event & SND_JACK_MICROPHONE) 71 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); 72 else 73 snd_soc_dapm_disable_pin(dapm, "MICBIAS"); 74 75 snd_soc_dapm_sync(dapm); 76 77 return 0; 78 } 79 80 static struct notifier_block rk_jack_nb = { 81 .notifier_call = rk_jack_event, 82 }; 83 84 static int rk_init(struct snd_soc_pcm_runtime *runtime) 85 { 86 /* 87 * The jack has already been created in the rk_98090_headset_init() 88 * function. 89 */ 90 snd_soc_jack_notifier_register(&headset_jack, &rk_jack_nb); 91 92 return 0; 93 } 94 95 static int rk_aif1_hw_params(struct snd_pcm_substream *substream, 96 struct snd_pcm_hw_params *params) 97 { 98 int ret = 0; 99 struct snd_soc_pcm_runtime *rtd = substream->private_data; 100 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 101 struct snd_soc_dai *codec_dai = rtd->codec_dai; 102 int mclk; 103 104 switch (params_rate(params)) { 105 case 8000: 106 case 16000: 107 case 24000: 108 case 32000: 109 case 48000: 110 case 64000: 111 case 96000: 112 mclk = 12288000; 113 break; 114 case 11025: 115 case 22050: 116 case 44100: 117 case 88200: 118 mclk = 11289600; 119 break; 120 default: 121 return -EINVAL; 122 } 123 124 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 125 SND_SOC_CLOCK_OUT); 126 if (ret < 0) { 127 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 128 return ret; 129 } 130 131 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, 132 SND_SOC_CLOCK_IN); 133 if (ret < 0) { 134 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 135 return ret; 136 } 137 138 return ret; 139 } 140 141 static const struct snd_soc_ops rk_aif1_ops = { 142 .hw_params = rk_aif1_hw_params, 143 }; 144 145 SND_SOC_DAILINK_DEFS(hifi, 146 DAILINK_COMP_ARRAY(COMP_EMPTY()), 147 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")), 148 DAILINK_COMP_ARRAY(COMP_EMPTY())); 149 150 static struct snd_soc_dai_link rk_dailink = { 151 .name = "max98090", 152 .stream_name = "Audio", 153 .init = rk_init, 154 .ops = &rk_aif1_ops, 155 /* set max98090 as slave */ 156 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 157 SND_SOC_DAIFMT_CBS_CFS, 158 SND_SOC_DAILINK_REG(hifi), 159 }; 160 161 static int rk_98090_headset_init(struct snd_soc_component *component); 162 163 static struct snd_soc_aux_dev rk_98090_headset_dev = { 164 .name = "Headset Chip", 165 .init = rk_98090_headset_init, 166 }; 167 168 static struct snd_soc_card snd_soc_card_rk = { 169 .name = "ROCKCHIP-I2S", 170 .owner = THIS_MODULE, 171 .dai_link = &rk_dailink, 172 .num_links = 1, 173 .aux_dev = &rk_98090_headset_dev, 174 .num_aux_devs = 1, 175 .dapm_widgets = rk_dapm_widgets, 176 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets), 177 .dapm_routes = rk_audio_map, 178 .num_dapm_routes = ARRAY_SIZE(rk_audio_map), 179 .controls = rk_mc_controls, 180 .num_controls = ARRAY_SIZE(rk_mc_controls), 181 }; 182 183 static int rk_98090_headset_init(struct snd_soc_component *component) 184 { 185 int ret; 186 187 /* Enable Headset and 4 Buttons Jack detection */ 188 ret = snd_soc_card_jack_new(&snd_soc_card_rk, "Headset Jack", 189 SND_JACK_HEADSET | 190 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 191 SND_JACK_BTN_2 | SND_JACK_BTN_3, 192 &headset_jack, 193 headset_jack_pins, 194 ARRAY_SIZE(headset_jack_pins)); 195 if (ret) 196 return ret; 197 198 ret = ts3a227e_enable_jack_detect(component, &headset_jack); 199 200 return ret; 201 } 202 203 static int snd_rk_mc_probe(struct platform_device *pdev) 204 { 205 int ret = 0; 206 struct snd_soc_card *card = &snd_soc_card_rk; 207 struct device_node *np = pdev->dev.of_node; 208 209 /* register the soc card */ 210 card->dev = &pdev->dev; 211 212 rk_dailink.codecs->of_node = of_parse_phandle(np, 213 "rockchip,audio-codec", 0); 214 if (!rk_dailink.codecs->of_node) { 215 dev_err(&pdev->dev, 216 "Property 'rockchip,audio-codec' missing or invalid\n"); 217 return -EINVAL; 218 } 219 220 rk_dailink.cpus->of_node = of_parse_phandle(np, 221 "rockchip,i2s-controller", 0); 222 if (!rk_dailink.cpus->of_node) { 223 dev_err(&pdev->dev, 224 "Property 'rockchip,i2s-controller' missing or invalid\n"); 225 return -EINVAL; 226 } 227 228 rk_dailink.platforms->of_node = rk_dailink.cpus->of_node; 229 230 rk_98090_headset_dev.codec_of_node = of_parse_phandle(np, 231 "rockchip,headset-codec", 0); 232 if (!rk_98090_headset_dev.codec_of_node) { 233 dev_err(&pdev->dev, 234 "Property 'rockchip,headset-codec' missing/invalid\n"); 235 return -EINVAL; 236 } 237 238 ret = snd_soc_of_parse_card_name(card, "rockchip,model"); 239 if (ret) { 240 dev_err(&pdev->dev, 241 "Soc parse card name failed %d\n", ret); 242 return ret; 243 } 244 245 ret = devm_snd_soc_register_card(&pdev->dev, card); 246 if (ret) { 247 dev_err(&pdev->dev, 248 "Soc register card failed %d\n", ret); 249 return ret; 250 } 251 252 return ret; 253 } 254 255 static const struct of_device_id rockchip_max98090_of_match[] = { 256 { .compatible = "rockchip,rockchip-audio-max98090", }, 257 {}, 258 }; 259 260 MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match); 261 262 static struct platform_driver snd_rk_mc_driver = { 263 .probe = snd_rk_mc_probe, 264 .driver = { 265 .name = DRV_NAME, 266 .pm = &snd_soc_pm_ops, 267 .of_match_table = rockchip_max98090_of_match, 268 }, 269 }; 270 271 module_platform_driver(snd_rk_mc_driver); 272 273 MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>"); 274 MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver"); 275 MODULE_LICENSE("GPL v2"); 276 MODULE_ALIAS("platform:" DRV_NAME); 277