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 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = { 36 SND_SOC_DAPM_HP("Headphone", NULL), 37 SND_SOC_DAPM_MIC("Headset Mic", NULL), 38 SND_SOC_DAPM_MIC("Internal Mic", NULL), 39 SND_SOC_DAPM_SPK("Speaker", NULL), 40 }; 41 42 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = { 43 {"AIF1 Playback", NULL, "ssp2 Tx"}, 44 {"ssp2 Tx", NULL, "codec_out0"}, 45 {"ssp2 Tx", NULL, "codec_out1"}, 46 {"codec_in0", NULL, "ssp2 Rx"}, 47 {"codec_in1", NULL, "ssp2 Rx"}, 48 {"ssp2 Rx", NULL, "AIF1 Capture"}, 49 50 {"Headset Mic", NULL, "MICBIAS1"}, 51 {"IN2P", NULL, "Headset Mic"}, 52 {"Headphone", NULL, "HPOL"}, 53 {"Headphone", NULL, "HPOR"}, 54 {"Speaker", NULL, "SPOLP"}, 55 {"Speaker", NULL, "SPOLN"}, 56 {"Speaker", NULL, "SPORP"}, 57 {"Speaker", NULL, "SPORN"}, 58 }; 59 60 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = { 61 {"DMIC1", NULL, "Internal Mic"}, 62 }; 63 64 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = { 65 {"DMIC2", NULL, "Internal Mic"}, 66 }; 67 68 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = { 69 {"Internal Mic", NULL, "MICBIAS1"}, 70 {"IN1P", NULL, "Internal Mic"}, 71 }; 72 73 enum { 74 BYT_RT5640_DMIC1_MAP, 75 BYT_RT5640_DMIC2_MAP, 76 BYT_RT5640_IN1_MAP, 77 }; 78 79 #define BYT_RT5640_MAP(quirk) ((quirk) & 0xff) 80 #define BYT_RT5640_DMIC_EN BIT(16) 81 82 static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP | 83 BYT_RT5640_DMIC_EN; 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 dmi_check_system(byt_rt5640_quirk_table); 178 switch (BYT_RT5640_MAP(byt_rt5640_quirk)) { 179 case BYT_RT5640_IN1_MAP: 180 custom_map = byt_rt5640_intmic_in1_map; 181 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map); 182 break; 183 case BYT_RT5640_DMIC2_MAP: 184 custom_map = byt_rt5640_intmic_dmic2_map; 185 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map); 186 break; 187 default: 188 custom_map = byt_rt5640_intmic_dmic1_map; 189 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map); 190 } 191 192 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 193 if (ret) 194 return ret; 195 196 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) { 197 ret = rt5640_dmic_enable(codec, 0, 0); 198 if (ret) 199 return ret; 200 } 201 202 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 203 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); 204 205 return ret; 206 } 207 208 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = { 209 .formats = SNDRV_PCM_FMTBIT_S24_LE, 210 .rate_min = 48000, 211 .rate_max = 48000, 212 .channels_min = 2, 213 .channels_max = 2, 214 }; 215 216 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd, 217 struct snd_pcm_hw_params *params) 218 { 219 struct snd_interval *rate = hw_param_interval(params, 220 SNDRV_PCM_HW_PARAM_RATE); 221 struct snd_interval *channels = hw_param_interval(params, 222 SNDRV_PCM_HW_PARAM_CHANNELS); 223 int ret; 224 225 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 226 rate->min = rate->max = 48000; 227 channels->min = channels->max = 2; 228 229 /* set SSP2 to 24-bit */ 230 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 231 232 /* 233 * Default mode for SSP configuration is TDM 4 slot, override config 234 * with explicit setting to I2S 2ch 24-bit. The word length is set with 235 * dai_set_tdm_slot() since there is no other API exposed 236 */ 237 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, 238 SND_SOC_DAIFMT_I2S | 239 SND_SOC_DAIFMT_NB_IF | 240 SND_SOC_DAIFMT_CBS_CFS 241 ); 242 if (ret < 0) { 243 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 244 return ret; 245 } 246 247 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24); 248 if (ret < 0) { 249 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 250 return ret; 251 } 252 253 return 0; 254 } 255 256 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream) 257 { 258 return snd_pcm_hw_constraint_single(substream->runtime, 259 SNDRV_PCM_HW_PARAM_RATE, 48000); 260 } 261 262 static struct snd_soc_ops byt_rt5640_aif1_ops = { 263 .startup = byt_rt5640_aif1_startup, 264 }; 265 266 static struct snd_soc_ops byt_rt5640_be_ssp2_ops = { 267 .hw_params = byt_rt5640_aif1_hw_params, 268 }; 269 270 static struct snd_soc_dai_link byt_rt5640_dais[] = { 271 [MERR_DPCM_AUDIO] = { 272 .name = "Baytrail Audio Port", 273 .stream_name = "Baytrail Audio", 274 .cpu_dai_name = "media-cpu-dai", 275 .codec_dai_name = "snd-soc-dummy-dai", 276 .codec_name = "snd-soc-dummy", 277 .platform_name = "sst-mfld-platform", 278 .ignore_suspend = 1, 279 .dynamic = 1, 280 .dpcm_playback = 1, 281 .dpcm_capture = 1, 282 .ops = &byt_rt5640_aif1_ops, 283 }, 284 [MERR_DPCM_DEEP_BUFFER] = { 285 .name = "Deep-Buffer Audio Port", 286 .stream_name = "Deep-Buffer Audio", 287 .cpu_dai_name = "deepbuffer-cpu-dai", 288 .codec_dai_name = "snd-soc-dummy-dai", 289 .codec_name = "snd-soc-dummy", 290 .platform_name = "sst-mfld-platform", 291 .ignore_suspend = 1, 292 .nonatomic = true, 293 .dynamic = 1, 294 .dpcm_playback = 1, 295 .ops = &byt_rt5640_aif1_ops, 296 }, 297 [MERR_DPCM_COMPR] = { 298 .name = "Baytrail Compressed Port", 299 .stream_name = "Baytrail Compress", 300 .cpu_dai_name = "compress-cpu-dai", 301 .codec_dai_name = "snd-soc-dummy-dai", 302 .codec_name = "snd-soc-dummy", 303 .platform_name = "sst-mfld-platform", 304 }, 305 /* back ends */ 306 { 307 .name = "SSP2-Codec", 308 .be_id = 1, 309 .cpu_dai_name = "ssp2-port", 310 .platform_name = "sst-mfld-platform", 311 .no_pcm = 1, 312 .codec_dai_name = "rt5640-aif1", 313 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */ 314 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 315 | SND_SOC_DAIFMT_CBS_CFS, 316 .be_hw_params_fixup = byt_rt5640_codec_fixup, 317 .ignore_suspend = 1, 318 .dpcm_playback = 1, 319 .dpcm_capture = 1, 320 .init = byt_rt5640_init, 321 .ops = &byt_rt5640_be_ssp2_ops, 322 }, 323 }; 324 325 /* SoC card */ 326 static struct snd_soc_card byt_rt5640_card = { 327 .name = "bytcr-rt5640", 328 .owner = THIS_MODULE, 329 .dai_link = byt_rt5640_dais, 330 .num_links = ARRAY_SIZE(byt_rt5640_dais), 331 .dapm_widgets = byt_rt5640_widgets, 332 .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets), 333 .dapm_routes = byt_rt5640_audio_map, 334 .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map), 335 .fully_routed = true, 336 }; 337 338 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */ 339 340 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) 341 { 342 int ret_val = 0; 343 struct sst_acpi_mach *mach; 344 345 /* register the soc card */ 346 byt_rt5640_card.dev = &pdev->dev; 347 mach = byt_rt5640_card.dev->platform_data; 348 349 /* fixup codec name based on HID */ 350 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name), 351 "%s%s%s", "i2c-", mach->id, ":00"); 352 byt_rt5640_dais[MERR_DPCM_COMPR+1].codec_name = byt_rt5640_codec_name; 353 354 ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card); 355 356 if (ret_val) { 357 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", 358 ret_val); 359 return ret_val; 360 } 361 platform_set_drvdata(pdev, &byt_rt5640_card); 362 return ret_val; 363 } 364 365 static struct platform_driver snd_byt_rt5640_mc_driver = { 366 .driver = { 367 .name = "bytcr_rt5640", 368 .pm = &snd_soc_pm_ops, 369 }, 370 .probe = snd_byt_rt5640_mc_probe, 371 }; 372 373 module_platform_driver(snd_byt_rt5640_mc_driver); 374 375 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); 376 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>"); 377 MODULE_LICENSE("GPL v2"); 378 MODULE_ALIAS("platform:bytcr_rt5640"); 379