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