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/soc-acpi.h> 29 #include <sound/jack.h> 30 #include <linux/input.h> 31 #include "../atom/sst-atom-controls.h" 32 #include "../../codecs/nau8824.h" 33 34 struct cht_mc_private { 35 struct snd_soc_jack jack; 36 }; 37 38 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = { 39 { 40 .pin = "Headphone", 41 .mask = SND_JACK_HEADPHONE, 42 }, 43 { 44 .pin = "Headset Mic", 45 .mask = SND_JACK_MICROPHONE, 46 }, 47 }; 48 49 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 50 SND_SOC_DAPM_HP("Headphone", NULL), 51 SND_SOC_DAPM_MIC("Headset Mic", NULL), 52 SND_SOC_DAPM_MIC("Int Mic", NULL), 53 SND_SOC_DAPM_SPK("Ext Spk", NULL), 54 }; 55 56 static const struct snd_soc_dapm_route cht_audio_map[] = { 57 {"Ext Spk", NULL, "SPKOUTL"}, 58 {"Ext Spk", NULL, "SPKOUTR"}, 59 {"Headphone", NULL, "HPOL"}, 60 {"Headphone", NULL, "HPOR"}, 61 {"MIC1", NULL, "Int Mic"}, 62 {"MIC2", NULL, "Int Mic"}, 63 {"HSMIC1", NULL, "Headset Mic"}, 64 {"HSMIC2", NULL, "Headset Mic"}, 65 {"Playback", NULL, "ssp2 Tx"}, 66 {"ssp2 Tx", NULL, "codec_out0"}, 67 {"ssp2 Tx", NULL, "codec_out1"}, 68 {"codec_in0", NULL, "ssp2 Rx" }, 69 {"codec_in1", NULL, "ssp2 Rx" }, 70 {"ssp2 Rx", NULL, "Capture"}, 71 }; 72 73 static const struct snd_kcontrol_new cht_mc_controls[] = { 74 SOC_DAPM_PIN_SWITCH("Headphone"), 75 SOC_DAPM_PIN_SWITCH("Headset Mic"), 76 SOC_DAPM_PIN_SWITCH("Int Mic"), 77 SOC_DAPM_PIN_SWITCH("Ext Spk"), 78 }; 79 80 static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 81 struct snd_pcm_hw_params *params) 82 { 83 struct snd_soc_pcm_runtime *rtd = substream->private_data; 84 struct snd_soc_dai *codec_dai = rtd->codec_dai; 85 int ret; 86 87 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8824_CLK_FLL_FS, 0, 88 SND_SOC_CLOCK_IN); 89 if (ret < 0) { 90 dev_err(codec_dai->dev, "can't set FS clock %d\n", ret); 91 return ret; 92 } 93 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, params_rate(params), 94 params_rate(params) * 256); 95 if (ret < 0) { 96 dev_err(codec_dai->dev, "can't set FLL: %d\n", ret); 97 return ret; 98 } 99 100 return 0; 101 } 102 103 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 104 { 105 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 106 struct snd_soc_jack *jack = &ctx->jack; 107 struct snd_soc_dai *codec_dai = runtime->codec_dai; 108 struct snd_soc_component *component = codec_dai->component; 109 int ret, jack_type; 110 111 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ 112 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xf, 0x1, 4, 24); 113 if (ret < 0) { 114 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); 115 return ret; 116 } 117 118 /* NAU88L24 supports 4 butons headset detection 119 * KEY_MEDIA 120 * KEY_VOICECOMMAND 121 * KEY_VOLUMEUP 122 * KEY_VOLUMEDOWN 123 */ 124 jack_type = SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 125 SND_JACK_BTN_2 | SND_JACK_BTN_3; 126 ret = snd_soc_card_jack_new(runtime->card, "Headset", jack_type, jack, 127 cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins)); 128 if (ret) { 129 dev_err(runtime->dev, 130 "Headset Jack creation failed %d\n", ret); 131 return ret; 132 } 133 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA); 134 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 135 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 136 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 137 138 nau8824_enable_jack_detect(component, jack); 139 140 return ret; 141 } 142 143 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 144 struct snd_pcm_hw_params *params) 145 { 146 struct snd_interval *rate = hw_param_interval(params, 147 SNDRV_PCM_HW_PARAM_RATE); 148 struct snd_interval *channels = hw_param_interval(params, 149 SNDRV_PCM_HW_PARAM_CHANNELS); 150 struct snd_mask *fmt = 151 hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 152 153 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 154 rate->min = rate->max = 48000; 155 channels->min = channels->max = 2; 156 157 /* set SSP2 to 24-bit */ 158 snd_mask_none(fmt); 159 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 160 161 return 0; 162 } 163 164 static int cht_aif1_startup(struct snd_pcm_substream *substream) 165 { 166 return snd_pcm_hw_constraint_single(substream->runtime, 167 SNDRV_PCM_HW_PARAM_RATE, 48000); 168 } 169 170 static const struct snd_soc_ops cht_aif1_ops = { 171 .startup = cht_aif1_startup, 172 }; 173 174 static const struct snd_soc_ops cht_be_ssp2_ops = { 175 .hw_params = cht_aif1_hw_params, 176 }; 177 178 static struct snd_soc_dai_link cht_dailink[] = { 179 /* Front End DAI links */ 180 [MERR_DPCM_AUDIO] = { 181 .name = "Audio Port", 182 .stream_name = "Audio", 183 .cpu_dai_name = "media-cpu-dai", 184 .codec_dai_name = "snd-soc-dummy-dai", 185 .codec_name = "snd-soc-dummy", 186 .platform_name = "sst-mfld-platform", 187 .nonatomic = true, 188 .dynamic = 1, 189 .dpcm_playback = 1, 190 .dpcm_capture = 1, 191 .ops = &cht_aif1_ops, 192 }, 193 [MERR_DPCM_DEEP_BUFFER] = { 194 .name = "Deep-Buffer Audio Port", 195 .stream_name = "Deep-Buffer Audio", 196 .cpu_dai_name = "deepbuffer-cpu-dai", 197 .codec_dai_name = "snd-soc-dummy-dai", 198 .codec_name = "snd-soc-dummy", 199 .platform_name = "sst-mfld-platform", 200 .nonatomic = true, 201 .dynamic = 1, 202 .dpcm_playback = 1, 203 .ops = &cht_aif1_ops, 204 }, 205 [MERR_DPCM_COMPR] = { 206 .name = "Compressed Port", 207 .stream_name = "Compress", 208 .cpu_dai_name = "compress-cpu-dai", 209 .codec_dai_name = "snd-soc-dummy-dai", 210 .codec_name = "snd-soc-dummy", 211 .platform_name = "sst-mfld-platform", 212 }, 213 /* Back End DAI links */ 214 { 215 /* SSP2 - Codec */ 216 .name = "SSP2-Codec", 217 .id = 1, 218 .cpu_dai_name = "ssp2-port", 219 .platform_name = "sst-mfld-platform", 220 .no_pcm = 1, 221 .codec_dai_name = NAU8824_CODEC_DAI, 222 .codec_name = "i2c-10508824:00", 223 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF 224 | SND_SOC_DAIFMT_CBS_CFS, 225 .init = cht_codec_init, 226 .be_hw_params_fixup = cht_codec_fixup, 227 .dpcm_playback = 1, 228 .dpcm_capture = 1, 229 .ops = &cht_be_ssp2_ops, 230 }, 231 }; 232 233 /* SoC card */ 234 static struct snd_soc_card snd_soc_card_cht = { 235 .name = "chtnau8824", 236 .owner = THIS_MODULE, 237 .dai_link = cht_dailink, 238 .num_links = ARRAY_SIZE(cht_dailink), 239 .dapm_widgets = cht_dapm_widgets, 240 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 241 .dapm_routes = cht_audio_map, 242 .num_dapm_routes = ARRAY_SIZE(cht_audio_map), 243 .controls = cht_mc_controls, 244 .num_controls = ARRAY_SIZE(cht_mc_controls), 245 }; 246 247 static int snd_cht_mc_probe(struct platform_device *pdev) 248 { 249 struct cht_mc_private *drv; 250 struct snd_soc_acpi_mach *mach; 251 const char *platform_name; 252 int ret_val; 253 254 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); 255 if (!drv) 256 return -ENOMEM; 257 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); 258 259 /* override plaform name, if required */ 260 mach = (&pdev->dev)->platform_data; 261 platform_name = mach->mach_params.platform; 262 263 ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht, 264 platform_name); 265 if (ret_val) 266 return ret_val; 267 268 /* register the soc card */ 269 snd_soc_card_cht.dev = &pdev->dev; 270 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); 271 if (ret_val) { 272 dev_err(&pdev->dev, 273 "snd_soc_register_card failed %d\n", ret_val); 274 return ret_val; 275 } 276 platform_set_drvdata(pdev, &snd_soc_card_cht); 277 278 return ret_val; 279 } 280 281 static struct platform_driver snd_cht_mc_driver = { 282 .driver = { 283 .name = "cht-bsw-nau8824", 284 }, 285 .probe = snd_cht_mc_probe, 286 }; 287 288 module_platform_driver(snd_cht_mc_driver); 289 290 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); 291 MODULE_AUTHOR("Wang, Joseph C <joequant@gmail.com>"); 292 MODULE_AUTHOR("John Hsu <KCHSU0@nuvoton.com>"); 293 MODULE_LICENSE("GPL v2"); 294 MODULE_ALIAS("platform:cht-bsw-nau8824"); 295