1 /* 2 * byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform 3 * 4 * Copyright (C) 2014 Intel Corp 5 * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com> 6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; version 2 of the License. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 18 */ 19 20 #include <linux/init.h> 21 #include <linux/module.h> 22 #include <linux/platform_device.h> 23 #include <linux/acpi.h> 24 #include <linux/device.h> 25 #include <linux/dmi.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/rt5640.h" 32 #include "../atom/sst-atom-controls.h" 33 #include "../common/sst-acpi.h" 34 35 enum { 36 BYT_RT5640_DMIC1_MAP, 37 BYT_RT5640_DMIC2_MAP, 38 BYT_RT5640_IN1_MAP, 39 }; 40 41 #define BYT_RT5640_MAP(quirk) ((quirk) & 0xff) 42 #define BYT_RT5640_DMIC_EN BIT(16) 43 44 static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP | 45 BYT_RT5640_DMIC_EN; 46 47 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = { 48 SND_SOC_DAPM_HP("Headphone", NULL), 49 SND_SOC_DAPM_MIC("Headset Mic", NULL), 50 SND_SOC_DAPM_MIC("Internal Mic", NULL), 51 SND_SOC_DAPM_SPK("Speaker", NULL), 52 }; 53 54 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = { 55 {"AIF1 Playback", NULL, "ssp2 Tx"}, 56 {"ssp2 Tx", NULL, "codec_out0"}, 57 {"ssp2 Tx", NULL, "codec_out1"}, 58 {"codec_in0", NULL, "ssp2 Rx"}, 59 {"codec_in1", NULL, "ssp2 Rx"}, 60 {"ssp2 Rx", NULL, "AIF1 Capture"}, 61 62 {"Headset Mic", NULL, "MICBIAS1"}, 63 {"IN2P", NULL, "Headset Mic"}, 64 {"Headphone", NULL, "HPOL"}, 65 {"Headphone", NULL, "HPOR"}, 66 {"Speaker", NULL, "SPOLP"}, 67 {"Speaker", NULL, "SPOLN"}, 68 {"Speaker", NULL, "SPORP"}, 69 {"Speaker", NULL, "SPORN"}, 70 }; 71 72 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = { 73 {"DMIC1", NULL, "Internal Mic"}, 74 }; 75 76 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = { 77 {"DMIC2", NULL, "Internal Mic"}, 78 }; 79 80 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = { 81 {"Internal Mic", NULL, "MICBIAS1"}, 82 {"IN1P", NULL, "Internal Mic"}, 83 }; 84 85 static const struct snd_kcontrol_new byt_rt5640_controls[] = { 86 SOC_DAPM_PIN_SWITCH("Headphone"), 87 SOC_DAPM_PIN_SWITCH("Headset Mic"), 88 SOC_DAPM_PIN_SWITCH("Internal Mic"), 89 SOC_DAPM_PIN_SWITCH("Speaker"), 90 }; 91 92 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream, 93 struct snd_pcm_hw_params *params) 94 { 95 struct snd_soc_pcm_runtime *rtd = substream->private_data; 96 struct snd_soc_dai *codec_dai = rtd->codec_dai; 97 int ret; 98 99 snd_soc_dai_set_bclk_ratio(codec_dai, 50); 100 101 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, 102 params_rate(params) * 512, 103 SND_SOC_CLOCK_IN); 104 if (ret < 0) { 105 dev_err(rtd->dev, "can't set codec clock %d\n", ret); 106 return ret; 107 } 108 109 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1, 110 params_rate(params) * 50, 111 params_rate(params) * 512); 112 if (ret < 0) { 113 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 114 return ret; 115 } 116 117 return 0; 118 } 119 120 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id) 121 { 122 byt_rt5640_quirk = (unsigned long)id->driver_data; 123 return 1; 124 } 125 126 static const struct dmi_system_id byt_rt5640_quirk_table[] = { 127 { 128 .callback = byt_rt5640_quirk_cb, 129 .matches = { 130 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 131 DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"), 132 }, 133 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP, 134 }, 135 { 136 .callback = byt_rt5640_quirk_cb, 137 .matches = { 138 DMI_MATCH(DMI_SYS_VENDOR, "DellInc."), 139 DMI_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"), 140 }, 141 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP | 142 BYT_RT5640_DMIC_EN), 143 }, 144 { 145 .callback = byt_rt5640_quirk_cb, 146 .matches = { 147 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 148 DMI_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"), 149 }, 150 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP, 151 }, 152 {} 153 }; 154 155 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) 156 { 157 int ret; 158 struct snd_soc_codec *codec = runtime->codec; 159 struct snd_soc_card *card = runtime->card; 160 const struct snd_soc_dapm_route *custom_map; 161 int num_routes; 162 163 card->dapm.idle_bias_off = true; 164 165 rt5640_sel_asrc_clk_src(codec, 166 RT5640_DA_STEREO_FILTER | 167 RT5640_AD_STEREO_FILTER, 168 RT5640_CLK_SEL_ASRC); 169 170 ret = snd_soc_add_card_controls(card, byt_rt5640_controls, 171 ARRAY_SIZE(byt_rt5640_controls)); 172 if (ret) { 173 dev_err(card->dev, "unable to add card controls\n"); 174 return ret; 175 } 176 177 switch (BYT_RT5640_MAP(byt_rt5640_quirk)) { 178 case BYT_RT5640_IN1_MAP: 179 custom_map = byt_rt5640_intmic_in1_map; 180 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map); 181 break; 182 case BYT_RT5640_DMIC2_MAP: 183 custom_map = byt_rt5640_intmic_dmic2_map; 184 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map); 185 break; 186 default: 187 custom_map = byt_rt5640_intmic_dmic1_map; 188 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map); 189 } 190 191 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 192 if (ret) 193 return ret; 194 195 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) { 196 ret = rt5640_dmic_enable(codec, 0, 0); 197 if (ret) 198 return ret; 199 } 200 201 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 202 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); 203 204 return ret; 205 } 206 207 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = { 208 .formats = SNDRV_PCM_FMTBIT_S24_LE, 209 .rate_min = 48000, 210 .rate_max = 48000, 211 .channels_min = 2, 212 .channels_max = 2, 213 }; 214 215 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd, 216 struct snd_pcm_hw_params *params) 217 { 218 struct snd_interval *rate = hw_param_interval(params, 219 SNDRV_PCM_HW_PARAM_RATE); 220 struct snd_interval *channels = hw_param_interval(params, 221 SNDRV_PCM_HW_PARAM_CHANNELS); 222 int ret; 223 224 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 225 rate->min = rate->max = 48000; 226 channels->min = channels->max = 2; 227 228 /* set SSP2 to 24-bit */ 229 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 230 231 /* 232 * Default mode for SSP configuration is TDM 4 slot, override config 233 * with explicit setting to I2S 2ch 24-bit. The word length is set with 234 * dai_set_tdm_slot() since there is no other API exposed 235 */ 236 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, 237 SND_SOC_DAIFMT_I2S | 238 SND_SOC_DAIFMT_NB_IF | 239 SND_SOC_DAIFMT_CBS_CFS 240 ); 241 if (ret < 0) { 242 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 243 return ret; 244 } 245 246 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24); 247 if (ret < 0) { 248 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 249 return ret; 250 } 251 252 return 0; 253 } 254 255 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream) 256 { 257 return snd_pcm_hw_constraint_single(substream->runtime, 258 SNDRV_PCM_HW_PARAM_RATE, 48000); 259 } 260 261 static struct snd_soc_ops byt_rt5640_aif1_ops = { 262 .startup = byt_rt5640_aif1_startup, 263 }; 264 265 static struct snd_soc_ops byt_rt5640_be_ssp2_ops = { 266 .hw_params = byt_rt5640_aif1_hw_params, 267 }; 268 269 static struct snd_soc_dai_link byt_rt5640_dais[] = { 270 [MERR_DPCM_AUDIO] = { 271 .name = "Baytrail Audio Port", 272 .stream_name = "Baytrail Audio", 273 .cpu_dai_name = "media-cpu-dai", 274 .codec_dai_name = "snd-soc-dummy-dai", 275 .codec_name = "snd-soc-dummy", 276 .platform_name = "sst-mfld-platform", 277 .ignore_suspend = 1, 278 .dynamic = 1, 279 .dpcm_playback = 1, 280 .dpcm_capture = 1, 281 .ops = &byt_rt5640_aif1_ops, 282 }, 283 [MERR_DPCM_DEEP_BUFFER] = { 284 .name = "Deep-Buffer Audio Port", 285 .stream_name = "Deep-Buffer Audio", 286 .cpu_dai_name = "deepbuffer-cpu-dai", 287 .codec_dai_name = "snd-soc-dummy-dai", 288 .codec_name = "snd-soc-dummy", 289 .platform_name = "sst-mfld-platform", 290 .ignore_suspend = 1, 291 .nonatomic = true, 292 .dynamic = 1, 293 .dpcm_playback = 1, 294 .ops = &byt_rt5640_aif1_ops, 295 }, 296 [MERR_DPCM_COMPR] = { 297 .name = "Baytrail Compressed Port", 298 .stream_name = "Baytrail Compress", 299 .cpu_dai_name = "compress-cpu-dai", 300 .codec_dai_name = "snd-soc-dummy-dai", 301 .codec_name = "snd-soc-dummy", 302 .platform_name = "sst-mfld-platform", 303 }, 304 /* back ends */ 305 { 306 .name = "SSP2-Codec", 307 .be_id = 1, 308 .cpu_dai_name = "ssp2-port", 309 .platform_name = "sst-mfld-platform", 310 .no_pcm = 1, 311 .codec_dai_name = "rt5640-aif1", 312 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */ 313 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 314 | SND_SOC_DAIFMT_CBS_CFS, 315 .be_hw_params_fixup = byt_rt5640_codec_fixup, 316 .ignore_suspend = 1, 317 .dpcm_playback = 1, 318 .dpcm_capture = 1, 319 .init = byt_rt5640_init, 320 .ops = &byt_rt5640_be_ssp2_ops, 321 }, 322 }; 323 324 /* SoC card */ 325 static struct snd_soc_card byt_rt5640_card = { 326 .name = "bytcr-rt5640", 327 .owner = THIS_MODULE, 328 .dai_link = byt_rt5640_dais, 329 .num_links = ARRAY_SIZE(byt_rt5640_dais), 330 .dapm_widgets = byt_rt5640_widgets, 331 .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets), 332 .dapm_routes = byt_rt5640_audio_map, 333 .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map), 334 .fully_routed = true, 335 }; 336 337 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */ 338 339 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) 340 { 341 int ret_val = 0; 342 struct sst_acpi_mach *mach; 343 const char *i2c_name = NULL; 344 int i; 345 int dai_index; 346 347 /* register the soc card */ 348 byt_rt5640_card.dev = &pdev->dev; 349 mach = byt_rt5640_card.dev->platform_data; 350 351 /* fix index of codec dai */ 352 dai_index = MERR_DPCM_COMPR + 1; 353 for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) { 354 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) { 355 dai_index = i; 356 break; 357 } 358 } 359 360 /* fixup codec name based on HID */ 361 i2c_name = sst_acpi_find_name_from_hid(mach->id); 362 if (i2c_name != NULL) { 363 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name), 364 "%s%s", "i2c-", i2c_name); 365 366 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name; 367 } 368 369 /* check quirks before creating card */ 370 dmi_check_system(byt_rt5640_quirk_table); 371 372 ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card); 373 374 if (ret_val) { 375 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", 376 ret_val); 377 return ret_val; 378 } 379 platform_set_drvdata(pdev, &byt_rt5640_card); 380 return ret_val; 381 } 382 383 static struct platform_driver snd_byt_rt5640_mc_driver = { 384 .driver = { 385 .name = "bytcr_rt5640", 386 .pm = &snd_soc_pm_ops, 387 }, 388 .probe = snd_byt_rt5640_mc_probe, 389 }; 390 391 module_platform_driver(snd_byt_rt5640_mc_driver); 392 393 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); 394 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>"); 395 MODULE_LICENSE("GPL v2"); 396 MODULE_ALIAS("platform:bytcr_rt5640"); 397