1 /* 2 * cht-bsw-rt5645.c - ASoc Machine driver for Intel Cherryview-based platforms 3 * Cherrytrail and Braswell, with RT5645 codec. 4 * 5 * Copyright (C) 2015 Intel Corp 6 * Author: Fang, Yang A <yang.a.fang@intel.com> 7 * N,Harshapriya <harshapriya.n@intel.com> 8 * This file is modified from cht_bsw_rt5672.c 9 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; version 2 of the License. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 21 */ 22 23 #include <linux/module.h> 24 #include <linux/acpi.h> 25 #include <linux/platform_device.h> 26 #include <linux/slab.h> 27 #include <sound/pcm.h> 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 #include <sound/jack.h> 31 #include "../../codecs/rt5645.h" 32 #include "../atom/sst-atom-controls.h" 33 34 #define CHT_PLAT_CLK_3_HZ 19200000 35 #define CHT_CODEC_DAI "rt5645-aif1" 36 37 struct cht_acpi_card { 38 char *codec_id; 39 int codec_type; 40 struct snd_soc_card *soc_card; 41 }; 42 43 struct cht_mc_private { 44 struct snd_soc_jack jack; 45 struct cht_acpi_card *acpi_card; 46 }; 47 48 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card) 49 { 50 struct snd_soc_pcm_runtime *rtd; 51 52 list_for_each_entry(rtd, &card->rtd_list, list) { 53 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI, 54 strlen(CHT_CODEC_DAI))) 55 return rtd->codec_dai; 56 } 57 return NULL; 58 } 59 60 static int platform_clock_control(struct snd_soc_dapm_widget *w, 61 struct snd_kcontrol *k, int event) 62 { 63 struct snd_soc_dapm_context *dapm = w->dapm; 64 struct snd_soc_card *card = dapm->card; 65 struct snd_soc_dai *codec_dai; 66 int ret; 67 68 codec_dai = cht_get_codec_dai(card); 69 if (!codec_dai) { 70 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); 71 return -EIO; 72 } 73 74 if (!SND_SOC_DAPM_EVENT_OFF(event)) 75 return 0; 76 77 /* Set codec sysclk source to its internal clock because codec PLL will 78 * be off when idle and MCLK will also be off by ACPI when codec is 79 * runtime suspended. Codec needs clock for jack detection and button 80 * press. 81 */ 82 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, 83 0, SND_SOC_CLOCK_IN); 84 if (ret < 0) { 85 dev_err(card->dev, "can't set codec sysclk: %d\n", ret); 86 return ret; 87 } 88 89 return 0; 90 } 91 92 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 93 SND_SOC_DAPM_HP("Headphone", NULL), 94 SND_SOC_DAPM_MIC("Headset Mic", NULL), 95 SND_SOC_DAPM_MIC("Int Mic", NULL), 96 SND_SOC_DAPM_SPK("Ext Spk", NULL), 97 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 98 platform_clock_control, SND_SOC_DAPM_POST_PMD), 99 }; 100 101 static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = { 102 {"IN1P", NULL, "Headset Mic"}, 103 {"IN1N", NULL, "Headset Mic"}, 104 {"DMIC L1", NULL, "Int Mic"}, 105 {"DMIC R1", NULL, "Int Mic"}, 106 {"Headphone", NULL, "HPOL"}, 107 {"Headphone", NULL, "HPOR"}, 108 {"Ext Spk", NULL, "SPOL"}, 109 {"Ext Spk", NULL, "SPOR"}, 110 {"AIF1 Playback", NULL, "ssp2 Tx"}, 111 {"ssp2 Tx", NULL, "codec_out0"}, 112 {"ssp2 Tx", NULL, "codec_out1"}, 113 {"codec_in0", NULL, "ssp2 Rx" }, 114 {"codec_in1", NULL, "ssp2 Rx" }, 115 {"ssp2 Rx", NULL, "AIF1 Capture"}, 116 {"Headphone", NULL, "Platform Clock"}, 117 {"Headset Mic", NULL, "Platform Clock"}, 118 {"Int Mic", NULL, "Platform Clock"}, 119 {"Ext Spk", NULL, "Platform Clock"}, 120 }; 121 122 static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = { 123 {"IN1P", NULL, "Headset Mic"}, 124 {"IN1N", NULL, "Headset Mic"}, 125 {"DMIC L2", NULL, "Int Mic"}, 126 {"DMIC R2", NULL, "Int Mic"}, 127 {"Headphone", NULL, "HPOL"}, 128 {"Headphone", NULL, "HPOR"}, 129 {"Ext Spk", NULL, "SPOL"}, 130 {"Ext Spk", NULL, "SPOR"}, 131 {"AIF1 Playback", NULL, "ssp2 Tx"}, 132 {"ssp2 Tx", NULL, "codec_out0"}, 133 {"ssp2 Tx", NULL, "codec_out1"}, 134 {"codec_in0", NULL, "ssp2 Rx" }, 135 {"codec_in1", NULL, "ssp2 Rx" }, 136 {"ssp2 Rx", NULL, "AIF1 Capture"}, 137 {"Headphone", NULL, "Platform Clock"}, 138 {"Headset Mic", NULL, "Platform Clock"}, 139 {"Int Mic", NULL, "Platform Clock"}, 140 {"Ext Spk", NULL, "Platform Clock"}, 141 }; 142 143 static const struct snd_kcontrol_new cht_mc_controls[] = { 144 SOC_DAPM_PIN_SWITCH("Headphone"), 145 SOC_DAPM_PIN_SWITCH("Headset Mic"), 146 SOC_DAPM_PIN_SWITCH("Int Mic"), 147 SOC_DAPM_PIN_SWITCH("Ext Spk"), 148 }; 149 150 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = { 151 { 152 .pin = "Headphone", 153 .mask = SND_JACK_HEADPHONE, 154 }, 155 { 156 .pin = "Headset Mic", 157 .mask = SND_JACK_MICROPHONE, 158 }, 159 }; 160 161 static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 162 struct snd_pcm_hw_params *params) 163 { 164 struct snd_soc_pcm_runtime *rtd = substream->private_data; 165 struct snd_soc_dai *codec_dai = rtd->codec_dai; 166 int ret; 167 168 /* set codec PLL source to the 19.2MHz platform clock (MCLK) */ 169 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK, 170 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512); 171 if (ret < 0) { 172 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 173 return ret; 174 } 175 176 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, 177 params_rate(params) * 512, SND_SOC_CLOCK_IN); 178 if (ret < 0) { 179 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); 180 return ret; 181 } 182 183 return 0; 184 } 185 186 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 187 { 188 int ret; 189 int jack_type; 190 struct snd_soc_codec *codec = runtime->codec; 191 struct snd_soc_dai *codec_dai = runtime->codec_dai; 192 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 193 194 /* Select clk_i2s1_asrc as ASRC clock source */ 195 rt5645_sel_asrc_clk_src(codec, 196 RT5645_DA_STEREO_FILTER | 197 RT5645_DA_MONO_L_FILTER | 198 RT5645_DA_MONO_R_FILTER | 199 RT5645_AD_STEREO_FILTER, 200 RT5645_CLK_SEL_I2S1_ASRC); 201 202 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ 203 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); 204 if (ret < 0) { 205 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); 206 return ret; 207 } 208 209 if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650) 210 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 211 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 212 SND_JACK_BTN_2 | SND_JACK_BTN_3; 213 else 214 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 215 216 ret = snd_soc_card_jack_new(runtime->card, "Headset", 217 jack_type, &ctx->jack, 218 cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins)); 219 if (ret) { 220 dev_err(runtime->dev, "Headset jack creation failed %d\n", ret); 221 return ret; 222 } 223 224 rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack); 225 226 return ret; 227 } 228 229 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 230 struct snd_pcm_hw_params *params) 231 { 232 struct snd_interval *rate = hw_param_interval(params, 233 SNDRV_PCM_HW_PARAM_RATE); 234 struct snd_interval *channels = hw_param_interval(params, 235 SNDRV_PCM_HW_PARAM_CHANNELS); 236 237 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 238 rate->min = rate->max = 48000; 239 channels->min = channels->max = 2; 240 241 /* set SSP2 to 24-bit */ 242 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 243 return 0; 244 } 245 246 static int cht_aif1_startup(struct snd_pcm_substream *substream) 247 { 248 return snd_pcm_hw_constraint_single(substream->runtime, 249 SNDRV_PCM_HW_PARAM_RATE, 48000); 250 } 251 252 static struct snd_soc_ops cht_aif1_ops = { 253 .startup = cht_aif1_startup, 254 }; 255 256 static struct snd_soc_ops cht_be_ssp2_ops = { 257 .hw_params = cht_aif1_hw_params, 258 }; 259 260 static struct snd_soc_dai_link cht_dailink[] = { 261 [MERR_DPCM_AUDIO] = { 262 .name = "Audio Port", 263 .stream_name = "Audio", 264 .cpu_dai_name = "media-cpu-dai", 265 .codec_dai_name = "snd-soc-dummy-dai", 266 .codec_name = "snd-soc-dummy", 267 .platform_name = "sst-mfld-platform", 268 .nonatomic = true, 269 .dynamic = 1, 270 .dpcm_playback = 1, 271 .dpcm_capture = 1, 272 .ops = &cht_aif1_ops, 273 }, 274 [MERR_DPCM_DEEP_BUFFER] = { 275 .name = "Deep-Buffer Audio Port", 276 .stream_name = "Deep-Buffer Audio", 277 .cpu_dai_name = "deepbuffer-cpu-dai", 278 .codec_dai_name = "snd-soc-dummy-dai", 279 .codec_name = "snd-soc-dummy", 280 .platform_name = "sst-mfld-platform", 281 .nonatomic = true, 282 .dynamic = 1, 283 .dpcm_playback = 1, 284 .ops = &cht_aif1_ops, 285 }, 286 [MERR_DPCM_COMPR] = { 287 .name = "Compressed Port", 288 .stream_name = "Compress", 289 .cpu_dai_name = "compress-cpu-dai", 290 .codec_dai_name = "snd-soc-dummy-dai", 291 .codec_name = "snd-soc-dummy", 292 .platform_name = "sst-mfld-platform", 293 }, 294 /* CODEC<->CODEC link */ 295 /* back ends */ 296 { 297 .name = "SSP2-Codec", 298 .id = 1, 299 .cpu_dai_name = "ssp2-port", 300 .platform_name = "sst-mfld-platform", 301 .no_pcm = 1, 302 .codec_dai_name = "rt5645-aif1", 303 .codec_name = "i2c-10EC5645:00", 304 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF 305 | SND_SOC_DAIFMT_CBS_CFS, 306 .init = cht_codec_init, 307 .be_hw_params_fixup = cht_codec_fixup, 308 .nonatomic = true, 309 .dpcm_playback = 1, 310 .dpcm_capture = 1, 311 .ops = &cht_be_ssp2_ops, 312 }, 313 }; 314 315 /* SoC card */ 316 static struct snd_soc_card snd_soc_card_chtrt5645 = { 317 .name = "chtrt5645", 318 .owner = THIS_MODULE, 319 .dai_link = cht_dailink, 320 .num_links = ARRAY_SIZE(cht_dailink), 321 .dapm_widgets = cht_dapm_widgets, 322 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 323 .dapm_routes = cht_rt5645_audio_map, 324 .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map), 325 .controls = cht_mc_controls, 326 .num_controls = ARRAY_SIZE(cht_mc_controls), 327 }; 328 329 static struct snd_soc_card snd_soc_card_chtrt5650 = { 330 .name = "chtrt5650", 331 .owner = THIS_MODULE, 332 .dai_link = cht_dailink, 333 .num_links = ARRAY_SIZE(cht_dailink), 334 .dapm_widgets = cht_dapm_widgets, 335 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 336 .dapm_routes = cht_rt5650_audio_map, 337 .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map), 338 .controls = cht_mc_controls, 339 .num_controls = ARRAY_SIZE(cht_mc_controls), 340 }; 341 342 static struct cht_acpi_card snd_soc_cards[] = { 343 {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, 344 {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650}, 345 }; 346 347 static int snd_cht_mc_probe(struct platform_device *pdev) 348 { 349 int ret_val = 0; 350 int i; 351 struct cht_mc_private *drv; 352 struct snd_soc_card *card = snd_soc_cards[0].soc_card; 353 char codec_name[16]; 354 355 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); 356 if (!drv) 357 return -ENOMEM; 358 359 for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) { 360 if (acpi_dev_found(snd_soc_cards[i].codec_id)) { 361 dev_dbg(&pdev->dev, 362 "found codec %s\n", snd_soc_cards[i].codec_id); 363 card = snd_soc_cards[i].soc_card; 364 drv->acpi_card = &snd_soc_cards[i]; 365 break; 366 } 367 } 368 card->dev = &pdev->dev; 369 sprintf(codec_name, "i2c-%s:00", drv->acpi_card->codec_id); 370 371 /* set correct codec name */ 372 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) 373 if (!strcmp(card->dai_link[i].codec_name, "i2c-10EC5645:00")) 374 card->dai_link[i].codec_name = kstrdup(codec_name, GFP_KERNEL); 375 376 snd_soc_card_set_drvdata(card, drv); 377 ret_val = devm_snd_soc_register_card(&pdev->dev, card); 378 if (ret_val) { 379 dev_err(&pdev->dev, 380 "snd_soc_register_card failed %d\n", ret_val); 381 return ret_val; 382 } 383 platform_set_drvdata(pdev, card); 384 return ret_val; 385 } 386 387 static struct platform_driver snd_cht_mc_driver = { 388 .driver = { 389 .name = "cht-bsw-rt5645", 390 }, 391 .probe = snd_cht_mc_probe, 392 }; 393 394 module_platform_driver(snd_cht_mc_driver) 395 396 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 397 MODULE_AUTHOR("Fang, Yang A,N,Harshapriya"); 398 MODULE_LICENSE("GPL v2"); 399 MODULE_ALIAS("platform:cht-bsw-rt5645"); 400