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 {"Headset Mic", NULL, "MICBIAS"}, 49 {"DMICL", NULL, "Int Mic"}, 50 {"Headphone", NULL, "HPL"}, 51 {"Headphone", NULL, "HPR"}, 52 {"Speaker", NULL, "SPKL"}, 53 {"Speaker", NULL, "SPKR"}, 54 }; 55 56 static const struct snd_kcontrol_new rk_mc_controls[] = { 57 SOC_DAPM_PIN_SWITCH("Headphone"), 58 SOC_DAPM_PIN_SWITCH("Headset Mic"), 59 SOC_DAPM_PIN_SWITCH("Int Mic"), 60 SOC_DAPM_PIN_SWITCH("Speaker"), 61 }; 62 63 static int rk_jack_event(struct notifier_block *nb, unsigned long event, 64 void *data) 65 { 66 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 67 struct snd_soc_dapm_context *dapm = &jack->card->dapm; 68 69 if (event & SND_JACK_MICROPHONE) { 70 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); 71 snd_soc_dapm_force_enable_pin(dapm, "SHDN"); 72 } else { 73 snd_soc_dapm_disable_pin(dapm, "MICBIAS"); 74 snd_soc_dapm_disable_pin(dapm, "SHDN"); 75 } 76 77 snd_soc_dapm_sync(dapm); 78 79 return 0; 80 } 81 82 static struct notifier_block rk_jack_nb = { 83 .notifier_call = rk_jack_event, 84 }; 85 86 static int rk_init(struct snd_soc_pcm_runtime *runtime) 87 { 88 /* 89 * The jack has already been created in the rk_98090_headset_init() 90 * function. 91 */ 92 snd_soc_jack_notifier_register(&headset_jack, &rk_jack_nb); 93 94 return 0; 95 } 96 97 static int rk_aif1_hw_params(struct snd_pcm_substream *substream, 98 struct snd_pcm_hw_params *params) 99 { 100 int ret = 0; 101 struct snd_soc_pcm_runtime *rtd = substream->private_data; 102 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 103 struct snd_soc_dai *codec_dai = rtd->codec_dai; 104 int mclk; 105 106 switch (params_rate(params)) { 107 case 8000: 108 case 16000: 109 case 24000: 110 case 32000: 111 case 48000: 112 case 64000: 113 case 96000: 114 mclk = 12288000; 115 break; 116 case 11025: 117 case 22050: 118 case 44100: 119 case 88200: 120 mclk = 11289600; 121 break; 122 default: 123 return -EINVAL; 124 } 125 126 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 127 SND_SOC_CLOCK_OUT); 128 if (ret < 0) { 129 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 130 return ret; 131 } 132 133 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, 134 SND_SOC_CLOCK_IN); 135 if (ret < 0) { 136 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 137 return ret; 138 } 139 140 return ret; 141 } 142 143 static int rk_aif1_startup(struct snd_pcm_substream *substream) 144 { 145 /* 146 * Set period size to 240 because pl330 has issue 147 * dealing with larger period in stress testing. 148 */ 149 return snd_pcm_hw_constraint_minmax(substream->runtime, 150 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 240, 240); 151 } 152 153 static const struct snd_soc_ops rk_aif1_ops = { 154 .hw_params = rk_aif1_hw_params, 155 .startup = rk_aif1_startup, 156 }; 157 158 SND_SOC_DAILINK_DEFS(hifi, 159 DAILINK_COMP_ARRAY(COMP_EMPTY()), 160 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")), 161 DAILINK_COMP_ARRAY(COMP_EMPTY())); 162 163 static struct snd_soc_dai_link rk_dailink = { 164 .name = "max98090", 165 .stream_name = "Audio", 166 .init = rk_init, 167 .ops = &rk_aif1_ops, 168 /* set max98090 as slave */ 169 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 170 SND_SOC_DAIFMT_CBS_CFS, 171 SND_SOC_DAILINK_REG(hifi), 172 }; 173 174 static int rk_98090_headset_init(struct snd_soc_component *component); 175 176 static struct snd_soc_aux_dev rk_98090_headset_dev = { 177 .dlc = COMP_EMPTY(), 178 .init = rk_98090_headset_init, 179 }; 180 181 static struct snd_soc_card snd_soc_card_rk = { 182 .name = "ROCKCHIP-I2S", 183 .owner = THIS_MODULE, 184 .dai_link = &rk_dailink, 185 .num_links = 1, 186 .aux_dev = &rk_98090_headset_dev, 187 .num_aux_devs = 1, 188 .dapm_widgets = rk_dapm_widgets, 189 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets), 190 .dapm_routes = rk_audio_map, 191 .num_dapm_routes = ARRAY_SIZE(rk_audio_map), 192 .controls = rk_mc_controls, 193 .num_controls = ARRAY_SIZE(rk_mc_controls), 194 }; 195 196 static int rk_98090_headset_init(struct snd_soc_component *component) 197 { 198 int ret; 199 200 /* Enable Headset and 4 Buttons Jack detection */ 201 ret = snd_soc_card_jack_new(&snd_soc_card_rk, "Headset Jack", 202 SND_JACK_HEADSET | 203 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 204 SND_JACK_BTN_2 | SND_JACK_BTN_3, 205 &headset_jack, 206 headset_jack_pins, 207 ARRAY_SIZE(headset_jack_pins)); 208 if (ret) 209 return ret; 210 211 ret = ts3a227e_enable_jack_detect(component, &headset_jack); 212 213 return ret; 214 } 215 216 static int snd_rk_mc_probe(struct platform_device *pdev) 217 { 218 int ret = 0; 219 struct snd_soc_card *card = &snd_soc_card_rk; 220 struct device_node *np = pdev->dev.of_node; 221 222 /* register the soc card */ 223 card->dev = &pdev->dev; 224 225 rk_dailink.codecs->of_node = of_parse_phandle(np, 226 "rockchip,audio-codec", 0); 227 if (!rk_dailink.codecs->of_node) { 228 dev_err(&pdev->dev, 229 "Property 'rockchip,audio-codec' missing or invalid\n"); 230 return -EINVAL; 231 } 232 233 rk_dailink.cpus->of_node = of_parse_phandle(np, 234 "rockchip,i2s-controller", 0); 235 if (!rk_dailink.cpus->of_node) { 236 dev_err(&pdev->dev, 237 "Property 'rockchip,i2s-controller' missing or invalid\n"); 238 return -EINVAL; 239 } 240 241 rk_dailink.platforms->of_node = rk_dailink.cpus->of_node; 242 243 rk_98090_headset_dev.dlc.of_node = of_parse_phandle(np, 244 "rockchip,headset-codec", 0); 245 if (!rk_98090_headset_dev.dlc.of_node) { 246 dev_err(&pdev->dev, 247 "Property 'rockchip,headset-codec' missing/invalid\n"); 248 return -EINVAL; 249 } 250 251 ret = snd_soc_of_parse_card_name(card, "rockchip,model"); 252 if (ret) { 253 dev_err(&pdev->dev, 254 "Soc parse card name failed %d\n", ret); 255 return ret; 256 } 257 258 ret = devm_snd_soc_register_card(&pdev->dev, card); 259 if (ret) { 260 dev_err(&pdev->dev, 261 "Soc register card failed %d\n", ret); 262 return ret; 263 } 264 265 return ret; 266 } 267 268 static const struct of_device_id rockchip_max98090_of_match[] = { 269 { .compatible = "rockchip,rockchip-audio-max98090", }, 270 {}, 271 }; 272 273 MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match); 274 275 static struct platform_driver snd_rk_mc_driver = { 276 .probe = snd_rk_mc_probe, 277 .driver = { 278 .name = DRV_NAME, 279 .pm = &snd_soc_pm_ops, 280 .of_match_table = rockchip_max98090_of_match, 281 }, 282 }; 283 284 module_platform_driver(snd_rk_mc_driver); 285 286 MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>"); 287 MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver"); 288 MODULE_LICENSE("GPL v2"); 289 MODULE_ALIAS("platform:" DRV_NAME); 290