1 /* 2 * ak4613.c -- Asahi Kasei ALSA Soc Audio driver 3 * 4 * Copyright (C) 2015 Renesas Electronics Corporation 5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 * 7 * Based on ak4642.c by Kuninori Morimoto 8 * Based on wm8731.c by Richard Purdie 9 * Based on ak4535.c by Richard Purdie 10 * Based on wm8753.c by Liam Girdwood 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License version 2 as 14 * published by the Free Software Foundation. 15 */ 16 17 #include <linux/clk.h> 18 #include <linux/i2c.h> 19 #include <linux/slab.h> 20 #include <linux/of_device.h> 21 #include <linux/module.h> 22 #include <linux/regmap.h> 23 #include <sound/soc.h> 24 #include <sound/pcm_params.h> 25 #include <sound/tlv.h> 26 27 #define PW_MGMT1 0x00 /* Power Management 1 */ 28 #define PW_MGMT2 0x01 /* Power Management 2 */ 29 #define PW_MGMT3 0x02 /* Power Management 3 */ 30 #define CTRL1 0x03 /* Control 1 */ 31 #define CTRL2 0x04 /* Control 2 */ 32 #define DEMP1 0x05 /* De-emphasis1 */ 33 #define DEMP2 0x06 /* De-emphasis2 */ 34 #define OFD 0x07 /* Overflow Detect */ 35 #define ZRD 0x08 /* Zero Detect */ 36 #define ICTRL 0x09 /* Input Control */ 37 #define OCTRL 0x0a /* Output Control */ 38 #define LOUT1 0x0b /* LOUT1 Volume Control */ 39 #define ROUT1 0x0c /* ROUT1 Volume Control */ 40 #define LOUT2 0x0d /* LOUT2 Volume Control */ 41 #define ROUT2 0x0e /* ROUT2 Volume Control */ 42 #define LOUT3 0x0f /* LOUT3 Volume Control */ 43 #define ROUT3 0x10 /* ROUT3 Volume Control */ 44 #define LOUT4 0x11 /* LOUT4 Volume Control */ 45 #define ROUT4 0x12 /* ROUT4 Volume Control */ 46 #define LOUT5 0x13 /* LOUT5 Volume Control */ 47 #define ROUT5 0x14 /* ROUT5 Volume Control */ 48 #define LOUT6 0x15 /* LOUT6 Volume Control */ 49 #define ROUT6 0x16 /* ROUT6 Volume Control */ 50 51 /* PW_MGMT1 */ 52 #define RSTN BIT(0) 53 #define PMDAC BIT(1) 54 #define PMADC BIT(2) 55 #define PMVR BIT(3) 56 57 /* PW_MGMT2 */ 58 #define PMAD_ALL 0x7 59 60 /* PW_MGMT3 */ 61 #define PMDA_ALL 0x3f 62 63 /* CTRL1 */ 64 #define DIF0 BIT(3) 65 #define DIF1 BIT(4) 66 #define DIF2 BIT(5) 67 #define TDM0 BIT(6) 68 #define TDM1 BIT(7) 69 #define NO_FMT (0xff) 70 #define FMT_MASK (0xf8) 71 72 /* CTRL2 */ 73 #define DFS_NORMAL_SPEED (0 << 2) 74 #define DFS_DOUBLE_SPEED (1 << 2) 75 #define DFS_QUAD_SPEED (2 << 2) 76 77 struct ak4613_priv { 78 struct mutex lock; 79 80 unsigned int fmt; 81 u8 fmt_ctrl; 82 int cnt; 83 }; 84 85 struct ak4613_formats { 86 unsigned int width; 87 unsigned int fmt; 88 }; 89 90 struct ak4613_interface { 91 struct ak4613_formats capture; 92 struct ak4613_formats playback; 93 }; 94 95 /* 96 * Playback Volume 97 * 98 * max : 0x00 : 0 dB 99 * ( 0.5 dB step ) 100 * min : 0xFE : -127.0 dB 101 * mute: 0xFF 102 */ 103 static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1); 104 105 static const struct snd_kcontrol_new ak4613_snd_controls[] = { 106 SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1, 107 0, 0xFF, 1, out_tlv), 108 SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2, 109 0, 0xFF, 1, out_tlv), 110 SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3, 111 0, 0xFF, 1, out_tlv), 112 SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4, 113 0, 0xFF, 1, out_tlv), 114 SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5, 115 0, 0xFF, 1, out_tlv), 116 SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6, 117 0, 0xFF, 1, out_tlv), 118 }; 119 120 static const struct reg_default ak4613_reg[] = { 121 { 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 }, 122 { 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 }, 123 { 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 }, 124 { 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 }, 125 { 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 }, 126 { 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 }, 127 }; 128 129 #define AUDIO_IFACE_IDX_TO_VAL(i) (i << 3) 130 #define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt } 131 static const struct ak4613_interface ak4613_iface[] = { 132 /* capture */ /* playback */ 133 [0] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(16, RIGHT_J) }, 134 [1] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(20, RIGHT_J) }, 135 [2] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, RIGHT_J) }, 136 [3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) }, 137 [4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) }, 138 }; 139 140 static const struct regmap_config ak4613_regmap_cfg = { 141 .reg_bits = 8, 142 .val_bits = 8, 143 .max_register = 0x16, 144 .reg_defaults = ak4613_reg, 145 .num_reg_defaults = ARRAY_SIZE(ak4613_reg), 146 }; 147 148 static const struct of_device_id ak4613_of_match[] = { 149 { .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg }, 150 {}, 151 }; 152 MODULE_DEVICE_TABLE(of, ak4613_of_match); 153 154 static const struct i2c_device_id ak4613_i2c_id[] = { 155 { "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg }, 156 { } 157 }; 158 MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id); 159 160 static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = { 161 162 /* Outputs */ 163 SND_SOC_DAPM_OUTPUT("LOUT1"), 164 SND_SOC_DAPM_OUTPUT("LOUT2"), 165 SND_SOC_DAPM_OUTPUT("LOUT3"), 166 SND_SOC_DAPM_OUTPUT("LOUT4"), 167 SND_SOC_DAPM_OUTPUT("LOUT5"), 168 SND_SOC_DAPM_OUTPUT("LOUT6"), 169 170 SND_SOC_DAPM_OUTPUT("ROUT1"), 171 SND_SOC_DAPM_OUTPUT("ROUT2"), 172 SND_SOC_DAPM_OUTPUT("ROUT3"), 173 SND_SOC_DAPM_OUTPUT("ROUT4"), 174 SND_SOC_DAPM_OUTPUT("ROUT5"), 175 SND_SOC_DAPM_OUTPUT("ROUT6"), 176 177 /* Inputs */ 178 SND_SOC_DAPM_INPUT("LIN1"), 179 SND_SOC_DAPM_INPUT("LIN2"), 180 181 SND_SOC_DAPM_INPUT("RIN1"), 182 SND_SOC_DAPM_INPUT("RIN2"), 183 184 /* DAC */ 185 SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0), 186 SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0), 187 SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0), 188 SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0), 189 SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0), 190 SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0), 191 192 /* ADC */ 193 SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0), 194 SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0), 195 }; 196 197 static const struct snd_soc_dapm_route ak4613_intercon[] = { 198 {"LOUT1", NULL, "DAC1"}, 199 {"LOUT2", NULL, "DAC2"}, 200 {"LOUT3", NULL, "DAC3"}, 201 {"LOUT4", NULL, "DAC4"}, 202 {"LOUT5", NULL, "DAC5"}, 203 {"LOUT6", NULL, "DAC6"}, 204 205 {"ROUT1", NULL, "DAC1"}, 206 {"ROUT2", NULL, "DAC2"}, 207 {"ROUT3", NULL, "DAC3"}, 208 {"ROUT4", NULL, "DAC4"}, 209 {"ROUT5", NULL, "DAC5"}, 210 {"ROUT6", NULL, "DAC6"}, 211 212 {"DAC1", NULL, "Playback"}, 213 {"DAC2", NULL, "Playback"}, 214 {"DAC3", NULL, "Playback"}, 215 {"DAC4", NULL, "Playback"}, 216 {"DAC5", NULL, "Playback"}, 217 {"DAC6", NULL, "Playback"}, 218 219 {"Capture", NULL, "ADC1"}, 220 {"Capture", NULL, "ADC2"}, 221 222 {"ADC1", NULL, "LIN1"}, 223 {"ADC2", NULL, "LIN2"}, 224 225 {"ADC1", NULL, "RIN1"}, 226 {"ADC2", NULL, "RIN2"}, 227 }; 228 229 static void ak4613_dai_shutdown(struct snd_pcm_substream *substream, 230 struct snd_soc_dai *dai) 231 { 232 struct snd_soc_codec *codec = dai->codec; 233 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec); 234 struct device *dev = codec->dev; 235 236 mutex_lock(&priv->lock); 237 priv->cnt--; 238 if (priv->cnt < 0) { 239 dev_err(dev, "unexpected counter error\n"); 240 priv->cnt = 0; 241 } 242 if (!priv->cnt) 243 priv->fmt_ctrl = NO_FMT; 244 mutex_unlock(&priv->lock); 245 } 246 247 static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 248 { 249 struct snd_soc_codec *codec = dai->codec; 250 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec); 251 252 fmt &= SND_SOC_DAIFMT_FORMAT_MASK; 253 254 switch (fmt) { 255 case SND_SOC_DAIFMT_RIGHT_J: 256 case SND_SOC_DAIFMT_LEFT_J: 257 case SND_SOC_DAIFMT_I2S: 258 priv->fmt = fmt; 259 260 break; 261 default: 262 return -EINVAL; 263 } 264 265 return 0; 266 } 267 268 static int ak4613_dai_hw_params(struct snd_pcm_substream *substream, 269 struct snd_pcm_hw_params *params, 270 struct snd_soc_dai *dai) 271 { 272 struct snd_soc_codec *codec = dai->codec; 273 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec); 274 const struct ak4613_formats *fmts; 275 struct device *dev = codec->dev; 276 unsigned int width = params_width(params); 277 unsigned int fmt = priv->fmt; 278 unsigned int rate; 279 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 280 int i, ret; 281 u8 fmt_ctrl, ctrl2; 282 283 rate = params_rate(params); 284 switch (rate) { 285 case 32000: 286 case 44100: 287 case 48000: 288 ctrl2 = DFS_NORMAL_SPEED; 289 break; 290 case 88200: 291 case 96000: 292 ctrl2 = DFS_DOUBLE_SPEED; 293 break; 294 case 176400: 295 case 192000: 296 ctrl2 = DFS_QUAD_SPEED; 297 break; 298 default: 299 return -EINVAL; 300 } 301 302 /* 303 * FIXME 304 * 305 * It doesn't support TDM at this point 306 */ 307 fmt_ctrl = NO_FMT; 308 for (i = 0; i < ARRAY_SIZE(ak4613_iface); i++) { 309 fmts = (is_play) ? &ak4613_iface[i].playback : 310 &ak4613_iface[i].capture; 311 312 if (fmts->fmt != fmt) 313 continue; 314 315 if (fmt == SND_SOC_DAIFMT_RIGHT_J) { 316 if (fmts->width != width) 317 continue; 318 } else { 319 if (fmts->width < width) 320 continue; 321 } 322 323 fmt_ctrl = AUDIO_IFACE_IDX_TO_VAL(i); 324 break; 325 } 326 327 ret = -EINVAL; 328 if (fmt_ctrl == NO_FMT) 329 goto hw_params_end; 330 331 mutex_lock(&priv->lock); 332 if ((priv->fmt_ctrl == NO_FMT) || 333 (priv->fmt_ctrl == fmt_ctrl)) { 334 priv->fmt_ctrl = fmt_ctrl; 335 priv->cnt++; 336 ret = 0; 337 } 338 mutex_unlock(&priv->lock); 339 340 if (ret < 0) 341 goto hw_params_end; 342 343 snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl); 344 snd_soc_write(codec, CTRL2, ctrl2); 345 346 hw_params_end: 347 if (ret < 0) 348 dev_warn(dev, "unsupported data width/format combination\n"); 349 350 return ret; 351 } 352 353 static int ak4613_set_bias_level(struct snd_soc_codec *codec, 354 enum snd_soc_bias_level level) 355 { 356 u8 mgmt1 = 0; 357 358 switch (level) { 359 case SND_SOC_BIAS_ON: 360 mgmt1 |= RSTN; 361 /* fall through */ 362 case SND_SOC_BIAS_PREPARE: 363 mgmt1 |= PMADC | PMDAC; 364 /* fall through */ 365 case SND_SOC_BIAS_STANDBY: 366 mgmt1 |= PMVR; 367 /* fall through */ 368 case SND_SOC_BIAS_OFF: 369 default: 370 break; 371 } 372 373 snd_soc_write(codec, PW_MGMT1, mgmt1); 374 375 return 0; 376 } 377 378 static const struct snd_soc_dai_ops ak4613_dai_ops = { 379 .shutdown = ak4613_dai_shutdown, 380 .set_fmt = ak4613_dai_set_fmt, 381 .hw_params = ak4613_dai_hw_params, 382 }; 383 384 #define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 |\ 385 SNDRV_PCM_RATE_44100 |\ 386 SNDRV_PCM_RATE_48000 |\ 387 SNDRV_PCM_RATE_64000 |\ 388 SNDRV_PCM_RATE_88200 |\ 389 SNDRV_PCM_RATE_96000 |\ 390 SNDRV_PCM_RATE_176400 |\ 391 SNDRV_PCM_RATE_192000) 392 #define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S16_LE |\ 393 SNDRV_PCM_FMTBIT_S24_LE) 394 395 static struct snd_soc_dai_driver ak4613_dai = { 396 .name = "ak4613-hifi", 397 .playback = { 398 .stream_name = "Playback", 399 .channels_min = 2, 400 .channels_max = 2, 401 .rates = AK4613_PCM_RATE, 402 .formats = AK4613_PCM_FMTBIT, 403 }, 404 .capture = { 405 .stream_name = "Capture", 406 .channels_min = 2, 407 .channels_max = 2, 408 .rates = AK4613_PCM_RATE, 409 .formats = AK4613_PCM_FMTBIT, 410 }, 411 .ops = &ak4613_dai_ops, 412 .symmetric_rates = 1, 413 }; 414 415 static int ak4613_resume(struct snd_soc_codec *codec) 416 { 417 struct regmap *regmap = dev_get_regmap(codec->dev, NULL); 418 419 regcache_mark_dirty(regmap); 420 return regcache_sync(regmap); 421 } 422 423 static struct snd_soc_codec_driver soc_codec_dev_ak4613 = { 424 .resume = ak4613_resume, 425 .set_bias_level = ak4613_set_bias_level, 426 .controls = ak4613_snd_controls, 427 .num_controls = ARRAY_SIZE(ak4613_snd_controls), 428 .dapm_widgets = ak4613_dapm_widgets, 429 .num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets), 430 .dapm_routes = ak4613_intercon, 431 .num_dapm_routes = ARRAY_SIZE(ak4613_intercon), 432 }; 433 434 static int ak4613_i2c_probe(struct i2c_client *i2c, 435 const struct i2c_device_id *id) 436 { 437 struct device *dev = &i2c->dev; 438 struct device_node *np = dev->of_node; 439 const struct regmap_config *regmap_cfg; 440 struct regmap *regmap; 441 struct ak4613_priv *priv; 442 443 regmap_cfg = NULL; 444 if (np) { 445 const struct of_device_id *of_id; 446 447 of_id = of_match_device(ak4613_of_match, dev); 448 if (of_id) 449 regmap_cfg = of_id->data; 450 } else { 451 regmap_cfg = (const struct regmap_config *)id->driver_data; 452 } 453 454 if (!regmap_cfg) 455 return -EINVAL; 456 457 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 458 if (!priv) 459 return -ENOMEM; 460 461 priv->fmt_ctrl = NO_FMT; 462 priv->cnt = 0; 463 464 mutex_init(&priv->lock); 465 466 i2c_set_clientdata(i2c, priv); 467 468 regmap = devm_regmap_init_i2c(i2c, regmap_cfg); 469 if (IS_ERR(regmap)) 470 return PTR_ERR(regmap); 471 472 return snd_soc_register_codec(dev, &soc_codec_dev_ak4613, 473 &ak4613_dai, 1); 474 } 475 476 static int ak4613_i2c_remove(struct i2c_client *client) 477 { 478 snd_soc_unregister_codec(&client->dev); 479 return 0; 480 } 481 482 static struct i2c_driver ak4613_i2c_driver = { 483 .driver = { 484 .name = "ak4613-codec", 485 .owner = THIS_MODULE, 486 .of_match_table = ak4613_of_match, 487 }, 488 .probe = ak4613_i2c_probe, 489 .remove = ak4613_i2c_remove, 490 .id_table = ak4613_i2c_id, 491 }; 492 493 module_i2c_driver(ak4613_i2c_driver); 494 495 MODULE_DESCRIPTION("Soc AK4613 driver"); 496 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); 497 MODULE_LICENSE("GPL v2"); 498