1 /* 2 * Rockchip machine ASoC driver for boards using a MAX90809 CODEC. 3 * 4 * Copyright (c) 2014, ROCKCHIP CORPORATION. All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 */ 19 20 #include <linux/module.h> 21 #include <linux/platform_device.h> 22 #include <linux/slab.h> 23 #include <linux/gpio.h> 24 #include <linux/of_gpio.h> 25 #include <sound/core.h> 26 #include <sound/jack.h> 27 #include <sound/pcm.h> 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 31 #include "rockchip_i2s.h" 32 #include "../codecs/ts3a227e.h" 33 34 #define DRV_NAME "rockchip-snd-max98090" 35 36 static struct snd_soc_jack headset_jack; 37 38 /* Headset jack detection DAPM pins */ 39 static struct snd_soc_jack_pin headset_jack_pins[] = { 40 { 41 .pin = "Headphone", 42 .mask = SND_JACK_HEADPHONE, 43 }, 44 { 45 .pin = "Headset Mic", 46 .mask = SND_JACK_MICROPHONE, 47 }, 48 49 }; 50 51 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = { 52 SND_SOC_DAPM_HP("Headphone", NULL), 53 SND_SOC_DAPM_MIC("Headset Mic", NULL), 54 SND_SOC_DAPM_MIC("Int Mic", NULL), 55 SND_SOC_DAPM_SPK("Speaker", NULL), 56 }; 57 58 static const struct snd_soc_dapm_route rk_audio_map[] = { 59 {"IN34", NULL, "Headset Mic"}, 60 {"IN34", NULL, "MICBIAS"}, 61 {"Headset Mic", NULL, "MICBIAS"}, 62 {"DMICL", NULL, "Int Mic"}, 63 {"Headphone", NULL, "HPL"}, 64 {"Headphone", NULL, "HPR"}, 65 {"Speaker", NULL, "SPKL"}, 66 {"Speaker", NULL, "SPKR"}, 67 }; 68 69 static const struct snd_kcontrol_new rk_mc_controls[] = { 70 SOC_DAPM_PIN_SWITCH("Headphone"), 71 SOC_DAPM_PIN_SWITCH("Headset Mic"), 72 SOC_DAPM_PIN_SWITCH("Int Mic"), 73 SOC_DAPM_PIN_SWITCH("Speaker"), 74 }; 75 76 static int rk_aif1_hw_params(struct snd_pcm_substream *substream, 77 struct snd_pcm_hw_params *params) 78 { 79 int ret = 0; 80 struct snd_soc_pcm_runtime *rtd = substream->private_data; 81 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 82 struct snd_soc_dai *codec_dai = rtd->codec_dai; 83 int mclk; 84 85 switch (params_rate(params)) { 86 case 8000: 87 case 16000: 88 case 24000: 89 case 32000: 90 case 48000: 91 case 64000: 92 case 96000: 93 mclk = 12288000; 94 break; 95 case 11025: 96 case 22050: 97 case 44100: 98 case 88200: 99 mclk = 11289600; 100 break; 101 default: 102 return -EINVAL; 103 } 104 105 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 106 SND_SOC_CLOCK_OUT); 107 if (ret < 0) { 108 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 109 return ret; 110 } 111 112 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, 113 SND_SOC_CLOCK_IN); 114 if (ret < 0) { 115 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 116 return ret; 117 } 118 119 return ret; 120 } 121 122 static const struct snd_soc_ops rk_aif1_ops = { 123 .hw_params = rk_aif1_hw_params, 124 }; 125 126 static struct snd_soc_dai_link rk_dailink = { 127 .name = "max98090", 128 .stream_name = "Audio", 129 .codec_dai_name = "HiFi", 130 .ops = &rk_aif1_ops, 131 /* set max98090 as slave */ 132 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 133 SND_SOC_DAIFMT_CBS_CFS, 134 }; 135 136 static int rk_98090_headset_init(struct snd_soc_component *component); 137 138 static struct snd_soc_aux_dev rk_98090_headset_dev = { 139 .name = "Headset Chip", 140 .init = rk_98090_headset_init, 141 }; 142 143 static struct snd_soc_card snd_soc_card_rk = { 144 .name = "ROCKCHIP-I2S", 145 .owner = THIS_MODULE, 146 .dai_link = &rk_dailink, 147 .num_links = 1, 148 .aux_dev = &rk_98090_headset_dev, 149 .num_aux_devs = 1, 150 .dapm_widgets = rk_dapm_widgets, 151 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets), 152 .dapm_routes = rk_audio_map, 153 .num_dapm_routes = ARRAY_SIZE(rk_audio_map), 154 .controls = rk_mc_controls, 155 .num_controls = ARRAY_SIZE(rk_mc_controls), 156 }; 157 158 static int rk_98090_headset_init(struct snd_soc_component *component) 159 { 160 int ret; 161 162 /* Enable Headset and 4 Buttons Jack detection */ 163 ret = snd_soc_card_jack_new(&snd_soc_card_rk, "Headset Jack", 164 SND_JACK_HEADSET | 165 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 166 SND_JACK_BTN_2 | SND_JACK_BTN_3, 167 &headset_jack, 168 headset_jack_pins, 169 ARRAY_SIZE(headset_jack_pins)); 170 if (ret) 171 return ret; 172 173 ret = ts3a227e_enable_jack_detect(component, &headset_jack); 174 175 return ret; 176 } 177 178 static int snd_rk_mc_probe(struct platform_device *pdev) 179 { 180 int ret = 0; 181 struct snd_soc_card *card = &snd_soc_card_rk; 182 struct device_node *np = pdev->dev.of_node; 183 184 /* register the soc card */ 185 card->dev = &pdev->dev; 186 187 rk_dailink.codec_of_node = of_parse_phandle(np, 188 "rockchip,audio-codec", 0); 189 if (!rk_dailink.codec_of_node) { 190 dev_err(&pdev->dev, 191 "Property 'rockchip,audio-codec' missing or invalid\n"); 192 return -EINVAL; 193 } 194 195 rk_dailink.cpu_of_node = of_parse_phandle(np, 196 "rockchip,i2s-controller", 0); 197 if (!rk_dailink.cpu_of_node) { 198 dev_err(&pdev->dev, 199 "Property 'rockchip,i2s-controller' missing or invalid\n"); 200 return -EINVAL; 201 } 202 203 rk_dailink.platform_of_node = rk_dailink.cpu_of_node; 204 205 rk_98090_headset_dev.codec_of_node = of_parse_phandle(np, 206 "rockchip,headset-codec", 0); 207 if (!rk_98090_headset_dev.codec_of_node) { 208 dev_err(&pdev->dev, 209 "Property 'rockchip,headset-codec' missing/invalid\n"); 210 return -EINVAL; 211 } 212 213 ret = snd_soc_of_parse_card_name(card, "rockchip,model"); 214 if (ret) { 215 dev_err(&pdev->dev, 216 "Soc parse card name failed %d\n", ret); 217 return ret; 218 } 219 220 ret = devm_snd_soc_register_card(&pdev->dev, card); 221 if (ret) { 222 dev_err(&pdev->dev, 223 "Soc register card failed %d\n", ret); 224 return ret; 225 } 226 227 return ret; 228 } 229 230 static const struct of_device_id rockchip_max98090_of_match[] = { 231 { .compatible = "rockchip,rockchip-audio-max98090", }, 232 {}, 233 }; 234 235 MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match); 236 237 static struct platform_driver snd_rk_mc_driver = { 238 .probe = snd_rk_mc_probe, 239 .driver = { 240 .name = DRV_NAME, 241 .pm = &snd_soc_pm_ops, 242 .of_match_table = rockchip_max98090_of_match, 243 }, 244 }; 245 246 module_platform_driver(snd_rk_mc_driver); 247 248 MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>"); 249 MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver"); 250 MODULE_LICENSE("GPL v2"); 251 MODULE_ALIAS("platform:" DRV_NAME); 252