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