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 #include "../common/sst-acpi.h" 34 35 #define CHT_PLAT_CLK_3_HZ 19200000 36 #define CHT_CODEC_DAI "rt5645-aif1" 37 38 struct cht_acpi_card { 39 char *codec_id; 40 int codec_type; 41 struct snd_soc_card *soc_card; 42 }; 43 44 struct cht_mc_private { 45 struct snd_soc_jack jack; 46 struct cht_acpi_card *acpi_card; 47 char codec_name[16]; 48 }; 49 50 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card) 51 { 52 struct snd_soc_pcm_runtime *rtd; 53 54 list_for_each_entry(rtd, &card->rtd_list, list) { 55 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI, 56 strlen(CHT_CODEC_DAI))) 57 return rtd->codec_dai; 58 } 59 return NULL; 60 } 61 62 static int platform_clock_control(struct snd_soc_dapm_widget *w, 63 struct snd_kcontrol *k, int event) 64 { 65 struct snd_soc_dapm_context *dapm = w->dapm; 66 struct snd_soc_card *card = dapm->card; 67 struct snd_soc_dai *codec_dai; 68 int ret; 69 70 codec_dai = cht_get_codec_dai(card); 71 if (!codec_dai) { 72 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); 73 return -EIO; 74 } 75 76 if (!SND_SOC_DAPM_EVENT_OFF(event)) 77 return 0; 78 79 /* Set codec sysclk source to its internal clock because codec PLL will 80 * be off when idle and MCLK will also be off by ACPI when codec is 81 * runtime suspended. Codec needs clock for jack detection and button 82 * press. 83 */ 84 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, 85 0, SND_SOC_CLOCK_IN); 86 if (ret < 0) { 87 dev_err(card->dev, "can't set codec sysclk: %d\n", ret); 88 return ret; 89 } 90 91 return 0; 92 } 93 94 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 95 SND_SOC_DAPM_HP("Headphone", NULL), 96 SND_SOC_DAPM_MIC("Headset Mic", NULL), 97 SND_SOC_DAPM_MIC("Int Mic", NULL), 98 SND_SOC_DAPM_SPK("Ext Spk", NULL), 99 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 100 platform_clock_control, SND_SOC_DAPM_POST_PMD), 101 }; 102 103 static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = { 104 {"IN1P", NULL, "Headset Mic"}, 105 {"IN1N", NULL, "Headset Mic"}, 106 {"DMIC L1", NULL, "Int Mic"}, 107 {"DMIC R1", NULL, "Int Mic"}, 108 {"Headphone", NULL, "HPOL"}, 109 {"Headphone", NULL, "HPOR"}, 110 {"Ext Spk", NULL, "SPOL"}, 111 {"Ext Spk", NULL, "SPOR"}, 112 {"AIF1 Playback", NULL, "ssp2 Tx"}, 113 {"ssp2 Tx", NULL, "codec_out0"}, 114 {"ssp2 Tx", NULL, "codec_out1"}, 115 {"codec_in0", NULL, "ssp2 Rx" }, 116 {"codec_in1", NULL, "ssp2 Rx" }, 117 {"ssp2 Rx", NULL, "AIF1 Capture"}, 118 {"Headphone", NULL, "Platform Clock"}, 119 {"Headset Mic", NULL, "Platform Clock"}, 120 {"Int Mic", NULL, "Platform Clock"}, 121 {"Ext Spk", NULL, "Platform Clock"}, 122 }; 123 124 static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = { 125 {"IN1P", NULL, "Headset Mic"}, 126 {"IN1N", NULL, "Headset Mic"}, 127 {"DMIC L2", NULL, "Int Mic"}, 128 {"DMIC R2", NULL, "Int Mic"}, 129 {"Headphone", NULL, "HPOL"}, 130 {"Headphone", NULL, "HPOR"}, 131 {"Ext Spk", NULL, "SPOL"}, 132 {"Ext Spk", NULL, "SPOR"}, 133 {"AIF1 Playback", NULL, "ssp2 Tx"}, 134 {"ssp2 Tx", NULL, "codec_out0"}, 135 {"ssp2 Tx", NULL, "codec_out1"}, 136 {"codec_in0", NULL, "ssp2 Rx" }, 137 {"codec_in1", NULL, "ssp2 Rx" }, 138 {"ssp2 Rx", NULL, "AIF1 Capture"}, 139 {"Headphone", NULL, "Platform Clock"}, 140 {"Headset Mic", NULL, "Platform Clock"}, 141 {"Int Mic", NULL, "Platform Clock"}, 142 {"Ext Spk", NULL, "Platform Clock"}, 143 }; 144 145 static const struct snd_kcontrol_new cht_mc_controls[] = { 146 SOC_DAPM_PIN_SWITCH("Headphone"), 147 SOC_DAPM_PIN_SWITCH("Headset Mic"), 148 SOC_DAPM_PIN_SWITCH("Int Mic"), 149 SOC_DAPM_PIN_SWITCH("Ext Spk"), 150 }; 151 152 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = { 153 { 154 .pin = "Headphone", 155 .mask = SND_JACK_HEADPHONE, 156 }, 157 { 158 .pin = "Headset Mic", 159 .mask = SND_JACK_MICROPHONE, 160 }, 161 }; 162 163 static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 164 struct snd_pcm_hw_params *params) 165 { 166 struct snd_soc_pcm_runtime *rtd = substream->private_data; 167 struct snd_soc_dai *codec_dai = rtd->codec_dai; 168 int ret; 169 170 /* set codec PLL source to the 19.2MHz platform clock (MCLK) */ 171 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK, 172 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512); 173 if (ret < 0) { 174 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 175 return ret; 176 } 177 178 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, 179 params_rate(params) * 512, SND_SOC_CLOCK_IN); 180 if (ret < 0) { 181 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); 182 return ret; 183 } 184 185 return 0; 186 } 187 188 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 189 { 190 int ret; 191 int jack_type; 192 struct snd_soc_codec *codec = runtime->codec; 193 struct snd_soc_dai *codec_dai = runtime->codec_dai; 194 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 195 196 /* Select clk_i2s1_asrc as ASRC clock source */ 197 rt5645_sel_asrc_clk_src(codec, 198 RT5645_DA_STEREO_FILTER | 199 RT5645_DA_MONO_L_FILTER | 200 RT5645_DA_MONO_R_FILTER | 201 RT5645_AD_STEREO_FILTER, 202 RT5645_CLK_SEL_I2S1_ASRC); 203 204 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ 205 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); 206 if (ret < 0) { 207 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); 208 return ret; 209 } 210 211 if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650) 212 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 213 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 214 SND_JACK_BTN_2 | SND_JACK_BTN_3; 215 else 216 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 217 218 ret = snd_soc_card_jack_new(runtime->card, "Headset", 219 jack_type, &ctx->jack, 220 cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins)); 221 if (ret) { 222 dev_err(runtime->dev, "Headset jack creation failed %d\n", ret); 223 return ret; 224 } 225 226 rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack); 227 228 return ret; 229 } 230 231 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 232 struct snd_pcm_hw_params *params) 233 { 234 struct snd_interval *rate = hw_param_interval(params, 235 SNDRV_PCM_HW_PARAM_RATE); 236 struct snd_interval *channels = hw_param_interval(params, 237 SNDRV_PCM_HW_PARAM_CHANNELS); 238 239 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 240 rate->min = rate->max = 48000; 241 channels->min = channels->max = 2; 242 243 /* set SSP2 to 24-bit */ 244 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 245 return 0; 246 } 247 248 static int cht_aif1_startup(struct snd_pcm_substream *substream) 249 { 250 return snd_pcm_hw_constraint_single(substream->runtime, 251 SNDRV_PCM_HW_PARAM_RATE, 48000); 252 } 253 254 static const struct snd_soc_ops cht_aif1_ops = { 255 .startup = cht_aif1_startup, 256 }; 257 258 static const struct snd_soc_ops cht_be_ssp2_ops = { 259 .hw_params = cht_aif1_hw_params, 260 }; 261 262 static struct snd_soc_dai_link cht_dailink[] = { 263 [MERR_DPCM_AUDIO] = { 264 .name = "Audio Port", 265 .stream_name = "Audio", 266 .cpu_dai_name = "media-cpu-dai", 267 .codec_dai_name = "snd-soc-dummy-dai", 268 .codec_name = "snd-soc-dummy", 269 .platform_name = "sst-mfld-platform", 270 .nonatomic = true, 271 .dynamic = 1, 272 .dpcm_playback = 1, 273 .dpcm_capture = 1, 274 .ops = &cht_aif1_ops, 275 }, 276 [MERR_DPCM_DEEP_BUFFER] = { 277 .name = "Deep-Buffer Audio Port", 278 .stream_name = "Deep-Buffer Audio", 279 .cpu_dai_name = "deepbuffer-cpu-dai", 280 .codec_dai_name = "snd-soc-dummy-dai", 281 .codec_name = "snd-soc-dummy", 282 .platform_name = "sst-mfld-platform", 283 .nonatomic = true, 284 .dynamic = 1, 285 .dpcm_playback = 1, 286 .ops = &cht_aif1_ops, 287 }, 288 [MERR_DPCM_COMPR] = { 289 .name = "Compressed Port", 290 .stream_name = "Compress", 291 .cpu_dai_name = "compress-cpu-dai", 292 .codec_dai_name = "snd-soc-dummy-dai", 293 .codec_name = "snd-soc-dummy", 294 .platform_name = "sst-mfld-platform", 295 }, 296 /* CODEC<->CODEC link */ 297 /* back ends */ 298 { 299 .name = "SSP2-Codec", 300 .id = 1, 301 .cpu_dai_name = "ssp2-port", 302 .platform_name = "sst-mfld-platform", 303 .no_pcm = 1, 304 .codec_dai_name = "rt5645-aif1", 305 .codec_name = "i2c-10EC5645:00", 306 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF 307 | SND_SOC_DAIFMT_CBS_CFS, 308 .init = cht_codec_init, 309 .be_hw_params_fixup = cht_codec_fixup, 310 .nonatomic = true, 311 .dpcm_playback = 1, 312 .dpcm_capture = 1, 313 .ops = &cht_be_ssp2_ops, 314 }, 315 }; 316 317 /* SoC card */ 318 static struct snd_soc_card snd_soc_card_chtrt5645 = { 319 .name = "chtrt5645", 320 .owner = THIS_MODULE, 321 .dai_link = cht_dailink, 322 .num_links = ARRAY_SIZE(cht_dailink), 323 .dapm_widgets = cht_dapm_widgets, 324 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 325 .dapm_routes = cht_rt5645_audio_map, 326 .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map), 327 .controls = cht_mc_controls, 328 .num_controls = ARRAY_SIZE(cht_mc_controls), 329 }; 330 331 static struct snd_soc_card snd_soc_card_chtrt5650 = { 332 .name = "chtrt5650", 333 .owner = THIS_MODULE, 334 .dai_link = cht_dailink, 335 .num_links = ARRAY_SIZE(cht_dailink), 336 .dapm_widgets = cht_dapm_widgets, 337 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 338 .dapm_routes = cht_rt5650_audio_map, 339 .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map), 340 .controls = cht_mc_controls, 341 .num_controls = ARRAY_SIZE(cht_mc_controls), 342 }; 343 344 static struct cht_acpi_card snd_soc_cards[] = { 345 {"10EC5640", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, 346 {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, 347 {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650}, 348 }; 349 350 static char cht_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */ 351 352 static int snd_cht_mc_probe(struct platform_device *pdev) 353 { 354 int ret_val = 0; 355 int i; 356 struct cht_mc_private *drv; 357 struct snd_soc_card *card = snd_soc_cards[0].soc_card; 358 struct sst_acpi_mach *mach; 359 const char *i2c_name = NULL; 360 int dai_index = 0; 361 362 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); 363 if (!drv) 364 return -ENOMEM; 365 366 for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) { 367 if (acpi_dev_found(snd_soc_cards[i].codec_id)) { 368 dev_dbg(&pdev->dev, 369 "found codec %s\n", snd_soc_cards[i].codec_id); 370 card = snd_soc_cards[i].soc_card; 371 drv->acpi_card = &snd_soc_cards[i]; 372 break; 373 } 374 } 375 card->dev = &pdev->dev; 376 mach = card->dev->platform_data; 377 sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id); 378 379 /* set correct codec name */ 380 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) 381 if (!strcmp(card->dai_link[i].codec_name, "i2c-10EC5645:00")) { 382 card->dai_link[i].codec_name = drv->codec_name; 383 dai_index = i; 384 } 385 386 /* fixup codec name based on HID */ 387 i2c_name = sst_acpi_find_name_from_hid(mach->id); 388 if (i2c_name != NULL) { 389 snprintf(cht_rt5640_codec_name, sizeof(cht_rt5640_codec_name), 390 "%s%s", "i2c-", i2c_name); 391 cht_dailink[dai_index].codec_name = cht_rt5640_codec_name; 392 } 393 394 snd_soc_card_set_drvdata(card, drv); 395 ret_val = devm_snd_soc_register_card(&pdev->dev, card); 396 if (ret_val) { 397 dev_err(&pdev->dev, 398 "snd_soc_register_card failed %d\n", ret_val); 399 return ret_val; 400 } 401 platform_set_drvdata(pdev, card); 402 return ret_val; 403 } 404 405 static struct platform_driver snd_cht_mc_driver = { 406 .driver = { 407 .name = "cht-bsw-rt5645", 408 }, 409 .probe = snd_cht_mc_probe, 410 }; 411 412 module_platform_driver(snd_cht_mc_driver) 413 414 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 415 MODULE_AUTHOR("Fang, Yang A,N,Harshapriya"); 416 MODULE_LICENSE("GPL v2"); 417 MODULE_ALIAS("platform:cht-bsw-rt5645"); 418