1 /* 2 * cht-bsw-nau8824.c - ASoc Machine driver for Intel Cherryview-based 3 * platforms Cherrytrail and Braswell, with nau8824 codec. 4 * 5 * Copyright (C) 2018 Intel Corp 6 * Copyright (C) 2018 Nuvoton Technology Corp 7 * 8 * Author: Wang, Joseph C <joequant@gmail.com> 9 * Co-author: John Hsu <KCHSU0@nuvoton.com> 10 * This file is based on cht_bsw_rt5672.c and cht-bsw-max98090.c 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; version 2 of the License. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 */ 21 22 #include <linux/module.h> 23 #include <linux/platform_device.h> 24 #include <linux/slab.h> 25 #include <sound/pcm.h> 26 #include <sound/pcm_params.h> 27 #include <sound/soc.h> 28 #include <sound/jack.h> 29 #include <linux/input.h> 30 #include "../atom/sst-atom-controls.h" 31 #include "../../codecs/nau8824.h" 32 33 struct cht_mc_private { 34 struct snd_soc_jack jack; 35 }; 36 37 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = { 38 { 39 .pin = "Headphone", 40 .mask = SND_JACK_HEADPHONE, 41 }, 42 { 43 .pin = "Headset Mic", 44 .mask = SND_JACK_MICROPHONE, 45 }, 46 }; 47 48 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 49 SND_SOC_DAPM_HP("Headphone", NULL), 50 SND_SOC_DAPM_MIC("Headset Mic", NULL), 51 SND_SOC_DAPM_MIC("Int Mic", NULL), 52 SND_SOC_DAPM_SPK("Ext Spk", NULL), 53 }; 54 55 static const struct snd_soc_dapm_route cht_audio_map[] = { 56 {"Ext Spk", NULL, "SPKOUTL"}, 57 {"Ext Spk", NULL, "SPKOUTR"}, 58 {"Headphone", NULL, "HPOL"}, 59 {"Headphone", NULL, "HPOR"}, 60 {"MIC1", NULL, "Int Mic"}, 61 {"MIC2", NULL, "Int Mic"}, 62 {"HSMIC1", NULL, "Headset Mic"}, 63 {"HSMIC2", NULL, "Headset Mic"}, 64 {"Playback", NULL, "ssp2 Tx"}, 65 {"ssp2 Tx", NULL, "codec_out0"}, 66 {"ssp2 Tx", NULL, "codec_out1"}, 67 {"codec_in0", NULL, "ssp2 Rx" }, 68 {"codec_in1", NULL, "ssp2 Rx" }, 69 {"ssp2 Rx", NULL, "Capture"}, 70 }; 71 72 static const struct snd_kcontrol_new cht_mc_controls[] = { 73 SOC_DAPM_PIN_SWITCH("Headphone"), 74 SOC_DAPM_PIN_SWITCH("Headset Mic"), 75 SOC_DAPM_PIN_SWITCH("Int Mic"), 76 SOC_DAPM_PIN_SWITCH("Ext Spk"), 77 }; 78 79 static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 80 struct snd_pcm_hw_params *params) 81 { 82 struct snd_soc_pcm_runtime *rtd = substream->private_data; 83 struct snd_soc_dai *codec_dai = rtd->codec_dai; 84 int ret; 85 86 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8824_CLK_FLL_FS, 0, 87 SND_SOC_CLOCK_IN); 88 if (ret < 0) { 89 dev_err(codec_dai->dev, "can't set FS clock %d\n", ret); 90 return ret; 91 } 92 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, params_rate(params), 93 params_rate(params) * 256); 94 if (ret < 0) { 95 dev_err(codec_dai->dev, "can't set FLL: %d\n", ret); 96 return ret; 97 } 98 99 return 0; 100 } 101 102 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 103 { 104 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 105 struct snd_soc_jack *jack = &ctx->jack; 106 struct snd_soc_dai *codec_dai = runtime->codec_dai; 107 struct snd_soc_component *component = codec_dai->component; 108 int ret, jack_type; 109 110 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ 111 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xf, 0x1, 4, 24); 112 if (ret < 0) { 113 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); 114 return ret; 115 } 116 117 /* NAU88L24 supports 4 butons headset detection 118 * KEY_MEDIA 119 * KEY_VOICECOMMAND 120 * KEY_VOLUMEUP 121 * KEY_VOLUMEDOWN 122 */ 123 jack_type = SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 124 SND_JACK_BTN_2 | SND_JACK_BTN_3; 125 ret = snd_soc_card_jack_new(runtime->card, "Headset", jack_type, jack, 126 cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins)); 127 if (ret) { 128 dev_err(runtime->dev, 129 "Headset Jack creation failed %d\n", ret); 130 return ret; 131 } 132 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA); 133 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 134 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 135 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 136 137 nau8824_enable_jack_detect(component, jack); 138 139 return ret; 140 } 141 142 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 143 struct snd_pcm_hw_params *params) 144 { 145 struct snd_interval *rate = hw_param_interval(params, 146 SNDRV_PCM_HW_PARAM_RATE); 147 struct snd_interval *channels = hw_param_interval(params, 148 SNDRV_PCM_HW_PARAM_CHANNELS); 149 struct snd_mask *fmt = 150 hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 151 152 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 153 rate->min = rate->max = 48000; 154 channels->min = channels->max = 2; 155 156 /* set SSP2 to 24-bit */ 157 snd_mask_none(fmt); 158 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 159 160 return 0; 161 } 162 163 static int cht_aif1_startup(struct snd_pcm_substream *substream) 164 { 165 return snd_pcm_hw_constraint_single(substream->runtime, 166 SNDRV_PCM_HW_PARAM_RATE, 48000); 167 } 168 169 static const struct snd_soc_ops cht_aif1_ops = { 170 .startup = cht_aif1_startup, 171 }; 172 173 static const struct snd_soc_ops cht_be_ssp2_ops = { 174 .hw_params = cht_aif1_hw_params, 175 }; 176 177 static struct snd_soc_dai_link cht_dailink[] = { 178 /* Front End DAI links */ 179 [MERR_DPCM_AUDIO] = { 180 .name = "Audio Port", 181 .stream_name = "Audio", 182 .cpu_dai_name = "media-cpu-dai", 183 .codec_dai_name = "snd-soc-dummy-dai", 184 .codec_name = "snd-soc-dummy", 185 .platform_name = "sst-mfld-platform", 186 .nonatomic = true, 187 .dynamic = 1, 188 .dpcm_playback = 1, 189 .dpcm_capture = 1, 190 .ops = &cht_aif1_ops, 191 }, 192 [MERR_DPCM_DEEP_BUFFER] = { 193 .name = "Deep-Buffer Audio Port", 194 .stream_name = "Deep-Buffer Audio", 195 .cpu_dai_name = "deepbuffer-cpu-dai", 196 .codec_dai_name = "snd-soc-dummy-dai", 197 .codec_name = "snd-soc-dummy", 198 .platform_name = "sst-mfld-platform", 199 .nonatomic = true, 200 .dynamic = 1, 201 .dpcm_playback = 1, 202 .ops = &cht_aif1_ops, 203 }, 204 [MERR_DPCM_COMPR] = { 205 .name = "Compressed Port", 206 .stream_name = "Compress", 207 .cpu_dai_name = "compress-cpu-dai", 208 .codec_dai_name = "snd-soc-dummy-dai", 209 .codec_name = "snd-soc-dummy", 210 .platform_name = "sst-mfld-platform", 211 }, 212 /* Back End DAI links */ 213 { 214 /* SSP2 - Codec */ 215 .name = "SSP2-Codec", 216 .id = 1, 217 .cpu_dai_name = "ssp2-port", 218 .platform_name = "sst-mfld-platform", 219 .no_pcm = 1, 220 .codec_dai_name = NAU8824_CODEC_DAI, 221 .codec_name = "i2c-10508824:00", 222 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF 223 | SND_SOC_DAIFMT_CBS_CFS, 224 .init = cht_codec_init, 225 .be_hw_params_fixup = cht_codec_fixup, 226 .dpcm_playback = 1, 227 .dpcm_capture = 1, 228 .ops = &cht_be_ssp2_ops, 229 }, 230 }; 231 232 /* SoC card */ 233 static struct snd_soc_card snd_soc_card_cht = { 234 .name = "chtnau8824", 235 .owner = THIS_MODULE, 236 .dai_link = cht_dailink, 237 .num_links = ARRAY_SIZE(cht_dailink), 238 .dapm_widgets = cht_dapm_widgets, 239 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 240 .dapm_routes = cht_audio_map, 241 .num_dapm_routes = ARRAY_SIZE(cht_audio_map), 242 .controls = cht_mc_controls, 243 .num_controls = ARRAY_SIZE(cht_mc_controls), 244 }; 245 246 static int snd_cht_mc_probe(struct platform_device *pdev) 247 { 248 struct cht_mc_private *drv; 249 int ret_val; 250 251 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); 252 if (!drv) 253 return -ENOMEM; 254 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); 255 256 /* register the soc card */ 257 snd_soc_card_cht.dev = &pdev->dev; 258 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); 259 if (ret_val) { 260 dev_err(&pdev->dev, 261 "snd_soc_register_card failed %d\n", ret_val); 262 return ret_val; 263 } 264 platform_set_drvdata(pdev, &snd_soc_card_cht); 265 266 return ret_val; 267 } 268 269 static struct platform_driver snd_cht_mc_driver = { 270 .driver = { 271 .name = "cht-bsw-nau8824", 272 }, 273 .probe = snd_cht_mc_probe, 274 }; 275 276 module_platform_driver(snd_cht_mc_driver); 277 278 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); 279 MODULE_AUTHOR("Wang, Joseph C <joequant@gmail.com>"); 280 MODULE_AUTHOR("John Hsu <KCHSU0@nuvoton.com>"); 281 MODULE_LICENSE("GPL v2"); 282 MODULE_ALIAS("platform:cht-bsw-nau8824"); 283