1 /* 2 * File: sound/soc/codecs/ssm2602.c 3 * Author: Cliff Cai <Cliff.Cai@analog.com> 4 * 5 * Created: Tue June 06 2008 6 * Description: Driver for ssm2602 sound chip 7 * 8 * Modified: 9 * Copyright 2008 Analog Devices Inc. 10 * 11 * Bugs: Enter bugs at http://blackfin.uclinux.org/ 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, see the file COPYING, or write 25 * to the Free Software Foundation, Inc., 26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 27 */ 28 29 #include <linux/module.h> 30 #include <linux/moduleparam.h> 31 #include <linux/init.h> 32 #include <linux/delay.h> 33 #include <linux/pm.h> 34 #include <linux/i2c.h> 35 #include <linux/spi/spi.h> 36 #include <linux/regmap.h> 37 #include <linux/slab.h> 38 #include <sound/core.h> 39 #include <sound/pcm.h> 40 #include <sound/pcm_params.h> 41 #include <sound/soc.h> 42 #include <sound/initval.h> 43 #include <sound/tlv.h> 44 45 #include "ssm2602.h" 46 47 enum ssm2602_type { 48 SSM2602, 49 SSM2604, 50 }; 51 52 /* codec private data */ 53 struct ssm2602_priv { 54 unsigned int sysclk; 55 struct snd_pcm_hw_constraint_list *sysclk_constraints; 56 57 struct regmap *regmap; 58 59 enum ssm2602_type type; 60 unsigned int clk_out_pwr; 61 }; 62 63 /* 64 * ssm2602 register cache 65 * We can't read the ssm2602 register space when we are 66 * using 2 wire for device control, so we cache them instead. 67 * There is no point in caching the reset register 68 */ 69 static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = { 70 0x0097, 0x0097, 0x0079, 0x0079, 71 0x000a, 0x0008, 0x009f, 0x000a, 72 0x0000, 0x0000 73 }; 74 75 76 /*Appending several "None"s just for OSS mixer use*/ 77 static const char *ssm2602_input_select[] = { 78 "Line", "Mic", "None", "None", "None", 79 "None", "None", "None", 80 }; 81 82 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 83 84 static const struct soc_enum ssm2602_enum[] = { 85 SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select), 86 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph), 87 }; 88 89 static const unsigned int ssm260x_outmix_tlv[] = { 90 TLV_DB_RANGE_HEAD(2), 91 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0), 92 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0), 93 }; 94 95 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0); 96 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0); 97 98 static const struct snd_kcontrol_new ssm260x_snd_controls[] = { 99 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0, 100 ssm260x_inpga_tlv), 101 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), 102 103 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), 104 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), 105 106 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), 107 }; 108 109 static const struct snd_kcontrol_new ssm2602_snd_controls[] = { 110 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V, 111 0, 127, 0, ssm260x_outmix_tlv), 112 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V, 113 7, 1, 0), 114 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1, 115 ssm260x_sidetone_tlv), 116 117 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), 118 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), 119 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), 120 }; 121 122 /* Output Mixer */ 123 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = { 124 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0), 125 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0), 126 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), 127 }; 128 129 /* Input mux */ 130 static const struct snd_kcontrol_new ssm2602_input_mux_controls = 131 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]); 132 133 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = { 134 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1), 135 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), 136 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), 137 138 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0), 139 140 SND_SOC_DAPM_OUTPUT("LOUT"), 141 SND_SOC_DAPM_OUTPUT("ROUT"), 142 SND_SOC_DAPM_INPUT("RLINEIN"), 143 SND_SOC_DAPM_INPUT("LLINEIN"), 144 }; 145 146 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { 147 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, 148 ssm260x_output_mixer_controls, 149 ARRAY_SIZE(ssm260x_output_mixer_controls)), 150 151 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls), 152 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1), 153 154 SND_SOC_DAPM_OUTPUT("LHPOUT"), 155 SND_SOC_DAPM_OUTPUT("RHPOUT"), 156 SND_SOC_DAPM_INPUT("MICIN"), 157 }; 158 159 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = { 160 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, 161 ssm260x_output_mixer_controls, 162 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */ 163 }; 164 165 static const struct snd_soc_dapm_route ssm260x_routes[] = { 166 {"DAC", NULL, "Digital Core Power"}, 167 {"ADC", NULL, "Digital Core Power"}, 168 169 {"Output Mixer", "Line Bypass Switch", "Line Input"}, 170 {"Output Mixer", "HiFi Playback Switch", "DAC"}, 171 172 {"ROUT", NULL, "Output Mixer"}, 173 {"LOUT", NULL, "Output Mixer"}, 174 175 {"Line Input", NULL, "LLINEIN"}, 176 {"Line Input", NULL, "RLINEIN"}, 177 }; 178 179 static const struct snd_soc_dapm_route ssm2602_routes[] = { 180 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, 181 182 {"RHPOUT", NULL, "Output Mixer"}, 183 {"LHPOUT", NULL, "Output Mixer"}, 184 185 {"Input Mux", "Line", "Line Input"}, 186 {"Input Mux", "Mic", "Mic Bias"}, 187 {"ADC", NULL, "Input Mux"}, 188 189 {"Mic Bias", NULL, "MICIN"}, 190 }; 191 192 static const struct snd_soc_dapm_route ssm2604_routes[] = { 193 {"ADC", NULL, "Line Input"}, 194 }; 195 196 static const unsigned int ssm2602_rates_12288000[] = { 197 8000, 16000, 32000, 48000, 96000, 198 }; 199 200 static struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = { 201 .list = ssm2602_rates_12288000, 202 .count = ARRAY_SIZE(ssm2602_rates_12288000), 203 }; 204 205 static const unsigned int ssm2602_rates_11289600[] = { 206 8000, 44100, 88200, 207 }; 208 209 static struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = { 210 .list = ssm2602_rates_11289600, 211 .count = ARRAY_SIZE(ssm2602_rates_11289600), 212 }; 213 214 struct ssm2602_coeff { 215 u32 mclk; 216 u32 rate; 217 u8 srate; 218 }; 219 220 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb)) 221 222 /* codec mclk clock coefficients */ 223 static const struct ssm2602_coeff ssm2602_coeff_table[] = { 224 /* 48k */ 225 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)}, 226 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)}, 227 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)}, 228 229 /* 32k */ 230 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)}, 231 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)}, 232 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)}, 233 234 /* 16k */ 235 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)}, 236 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)}, 237 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)}, 238 239 /* 8k */ 240 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)}, 241 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)}, 242 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)}, 243 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)}, 244 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)}, 245 246 /* 96k */ 247 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)}, 248 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)}, 249 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)}, 250 251 /* 44.1k */ 252 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)}, 253 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)}, 254 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)}, 255 256 /* 88.2k */ 257 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)}, 258 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)}, 259 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)}, 260 }; 261 262 static inline int ssm2602_get_coeff(int mclk, int rate) 263 { 264 int i; 265 266 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) { 267 if (ssm2602_coeff_table[i].rate == rate && 268 ssm2602_coeff_table[i].mclk == mclk) 269 return ssm2602_coeff_table[i].srate; 270 } 271 return -EINVAL; 272 } 273 274 static int ssm2602_hw_params(struct snd_pcm_substream *substream, 275 struct snd_pcm_hw_params *params, 276 struct snd_soc_dai *dai) 277 { 278 struct snd_soc_codec *codec = dai->codec; 279 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 280 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params)); 281 unsigned int iface; 282 283 if (srate < 0) 284 return srate; 285 286 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate); 287 288 /* bit size */ 289 switch (params_format(params)) { 290 case SNDRV_PCM_FORMAT_S16_LE: 291 iface = 0x0; 292 break; 293 case SNDRV_PCM_FORMAT_S20_3LE: 294 iface = 0x4; 295 break; 296 case SNDRV_PCM_FORMAT_S24_LE: 297 iface = 0x8; 298 break; 299 case SNDRV_PCM_FORMAT_S32_LE: 300 iface = 0xc; 301 break; 302 default: 303 return -EINVAL; 304 } 305 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE, 306 IFACE_AUDIO_DATA_LEN, iface); 307 return 0; 308 } 309 310 static int ssm2602_startup(struct snd_pcm_substream *substream, 311 struct snd_soc_dai *dai) 312 { 313 struct snd_soc_codec *codec = dai->codec; 314 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 315 316 if (ssm2602->sysclk_constraints) { 317 snd_pcm_hw_constraint_list(substream->runtime, 0, 318 SNDRV_PCM_HW_PARAM_RATE, 319 ssm2602->sysclk_constraints); 320 } 321 322 return 0; 323 } 324 325 static int ssm2602_mute(struct snd_soc_dai *dai, int mute) 326 { 327 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec); 328 329 if (mute) 330 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 331 APDIGI_ENABLE_DAC_MUTE, 332 APDIGI_ENABLE_DAC_MUTE); 333 else 334 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 335 APDIGI_ENABLE_DAC_MUTE, 0); 336 return 0; 337 } 338 339 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, 340 int clk_id, unsigned int freq, int dir) 341 { 342 struct snd_soc_codec *codec = codec_dai->codec; 343 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 344 345 if (dir == SND_SOC_CLOCK_IN) { 346 if (clk_id != SSM2602_SYSCLK) 347 return -EINVAL; 348 349 switch (freq) { 350 case 12288000: 351 case 18432000: 352 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000; 353 break; 354 case 11289600: 355 case 16934400: 356 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600; 357 break; 358 case 12000000: 359 ssm2602->sysclk_constraints = NULL; 360 break; 361 default: 362 return -EINVAL; 363 } 364 ssm2602->sysclk = freq; 365 } else { 366 unsigned int mask; 367 368 switch (clk_id) { 369 case SSM2602_CLK_CLKOUT: 370 mask = PWR_CLK_OUT_PDN; 371 break; 372 case SSM2602_CLK_XTO: 373 mask = PWR_OSC_PDN; 374 break; 375 default: 376 return -EINVAL; 377 } 378 379 if (freq == 0) 380 ssm2602->clk_out_pwr |= mask; 381 else 382 ssm2602->clk_out_pwr &= ~mask; 383 384 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 385 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); 386 } 387 388 return 0; 389 } 390 391 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, 392 unsigned int fmt) 393 { 394 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec); 395 unsigned int iface = 0; 396 397 /* set master/slave audio interface */ 398 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 399 case SND_SOC_DAIFMT_CBM_CFM: 400 iface |= 0x0040; 401 break; 402 case SND_SOC_DAIFMT_CBS_CFS: 403 break; 404 default: 405 return -EINVAL; 406 } 407 408 /* interface format */ 409 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 410 case SND_SOC_DAIFMT_I2S: 411 iface |= 0x0002; 412 break; 413 case SND_SOC_DAIFMT_RIGHT_J: 414 break; 415 case SND_SOC_DAIFMT_LEFT_J: 416 iface |= 0x0001; 417 break; 418 case SND_SOC_DAIFMT_DSP_A: 419 iface |= 0x0013; 420 break; 421 case SND_SOC_DAIFMT_DSP_B: 422 iface |= 0x0003; 423 break; 424 default: 425 return -EINVAL; 426 } 427 428 /* clock inversion */ 429 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 430 case SND_SOC_DAIFMT_NB_NF: 431 break; 432 case SND_SOC_DAIFMT_IB_IF: 433 iface |= 0x0090; 434 break; 435 case SND_SOC_DAIFMT_IB_NF: 436 iface |= 0x0080; 437 break; 438 case SND_SOC_DAIFMT_NB_IF: 439 iface |= 0x0010; 440 break; 441 default: 442 return -EINVAL; 443 } 444 445 /* set iface */ 446 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface); 447 return 0; 448 } 449 450 static int ssm2602_set_bias_level(struct snd_soc_codec *codec, 451 enum snd_soc_bias_level level) 452 { 453 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 454 455 switch (level) { 456 case SND_SOC_BIAS_ON: 457 /* vref/mid on, osc and clkout on if enabled */ 458 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 459 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 460 ssm2602->clk_out_pwr); 461 break; 462 case SND_SOC_BIAS_PREPARE: 463 break; 464 case SND_SOC_BIAS_STANDBY: 465 /* everything off except vref/vmid, */ 466 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 467 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 468 PWR_CLK_OUT_PDN | PWR_OSC_PDN); 469 break; 470 case SND_SOC_BIAS_OFF: 471 /* everything off */ 472 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 473 PWR_POWER_OFF, PWR_POWER_OFF); 474 break; 475 476 } 477 codec->dapm.bias_level = level; 478 return 0; 479 } 480 481 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ 482 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 483 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 484 SNDRV_PCM_RATE_96000) 485 486 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 487 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 488 489 static const struct snd_soc_dai_ops ssm2602_dai_ops = { 490 .startup = ssm2602_startup, 491 .hw_params = ssm2602_hw_params, 492 .digital_mute = ssm2602_mute, 493 .set_sysclk = ssm2602_set_dai_sysclk, 494 .set_fmt = ssm2602_set_dai_fmt, 495 }; 496 497 static struct snd_soc_dai_driver ssm2602_dai = { 498 .name = "ssm2602-hifi", 499 .playback = { 500 .stream_name = "Playback", 501 .channels_min = 2, 502 .channels_max = 2, 503 .rates = SSM2602_RATES, 504 .formats = SSM2602_FORMATS,}, 505 .capture = { 506 .stream_name = "Capture", 507 .channels_min = 2, 508 .channels_max = 2, 509 .rates = SSM2602_RATES, 510 .formats = SSM2602_FORMATS,}, 511 .ops = &ssm2602_dai_ops, 512 .symmetric_rates = 1, 513 .symmetric_samplebits = 1, 514 }; 515 516 static int ssm2602_suspend(struct snd_soc_codec *codec) 517 { 518 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 519 return 0; 520 } 521 522 static int ssm2602_resume(struct snd_soc_codec *codec) 523 { 524 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 525 526 regcache_sync(ssm2602->regmap); 527 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 528 529 return 0; 530 } 531 532 static int ssm2602_probe(struct snd_soc_codec *codec) 533 { 534 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 535 struct snd_soc_dapm_context *dapm = &codec->dapm; 536 int ret; 537 538 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V, 539 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); 540 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V, 541 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH); 542 543 ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls, 544 ARRAY_SIZE(ssm2602_snd_controls)); 545 if (ret) 546 return ret; 547 548 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, 549 ARRAY_SIZE(ssm2602_dapm_widgets)); 550 if (ret) 551 return ret; 552 553 return snd_soc_dapm_add_routes(dapm, ssm2602_routes, 554 ARRAY_SIZE(ssm2602_routes)); 555 } 556 557 static int ssm2604_probe(struct snd_soc_codec *codec) 558 { 559 struct snd_soc_dapm_context *dapm = &codec->dapm; 560 int ret; 561 562 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, 563 ARRAY_SIZE(ssm2604_dapm_widgets)); 564 if (ret) 565 return ret; 566 567 return snd_soc_dapm_add_routes(dapm, ssm2604_routes, 568 ARRAY_SIZE(ssm2604_routes)); 569 } 570 571 static int ssm260x_probe(struct snd_soc_codec *codec) 572 { 573 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 574 int ret; 575 576 codec->control_data = ssm2602->regmap; 577 ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP); 578 if (ret < 0) { 579 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 580 return ret; 581 } 582 583 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0); 584 if (ret < 0) { 585 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 586 return ret; 587 } 588 589 /* set the update bits */ 590 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL, 591 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); 592 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL, 593 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); 594 /*select Line in as default input*/ 595 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC | 596 APANA_ENABLE_MIC_BOOST); 597 598 switch (ssm2602->type) { 599 case SSM2602: 600 ret = ssm2602_probe(codec); 601 break; 602 case SSM2604: 603 ret = ssm2604_probe(codec); 604 break; 605 } 606 607 if (ret) 608 return ret; 609 610 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 611 612 return 0; 613 } 614 615 /* remove everything here */ 616 static int ssm2602_remove(struct snd_soc_codec *codec) 617 { 618 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 619 return 0; 620 } 621 622 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { 623 .probe = ssm260x_probe, 624 .remove = ssm2602_remove, 625 .suspend = ssm2602_suspend, 626 .resume = ssm2602_resume, 627 .set_bias_level = ssm2602_set_bias_level, 628 629 .controls = ssm260x_snd_controls, 630 .num_controls = ARRAY_SIZE(ssm260x_snd_controls), 631 .dapm_widgets = ssm260x_dapm_widgets, 632 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), 633 .dapm_routes = ssm260x_routes, 634 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), 635 }; 636 637 static bool ssm2602_register_volatile(struct device *dev, unsigned int reg) 638 { 639 return reg == SSM2602_RESET; 640 } 641 642 static const struct regmap_config ssm2602_regmap_config = { 643 .val_bits = 9, 644 .reg_bits = 7, 645 646 .max_register = SSM2602_RESET, 647 .volatile_reg = ssm2602_register_volatile, 648 649 .cache_type = REGCACHE_RBTREE, 650 .reg_defaults_raw = ssm2602_reg, 651 .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg), 652 }; 653 654 #if defined(CONFIG_SPI_MASTER) 655 static int ssm2602_spi_probe(struct spi_device *spi) 656 { 657 struct ssm2602_priv *ssm2602; 658 int ret; 659 660 ssm2602 = devm_kzalloc(&spi->dev, sizeof(struct ssm2602_priv), 661 GFP_KERNEL); 662 if (ssm2602 == NULL) 663 return -ENOMEM; 664 665 spi_set_drvdata(spi, ssm2602); 666 ssm2602->type = SSM2602; 667 668 ssm2602->regmap = devm_regmap_init_spi(spi, &ssm2602_regmap_config); 669 if (IS_ERR(ssm2602->regmap)) 670 return PTR_ERR(ssm2602->regmap); 671 672 ret = snd_soc_register_codec(&spi->dev, 673 &soc_codec_dev_ssm2602, &ssm2602_dai, 1); 674 return ret; 675 } 676 677 static int ssm2602_spi_remove(struct spi_device *spi) 678 { 679 snd_soc_unregister_codec(&spi->dev); 680 return 0; 681 } 682 683 static struct spi_driver ssm2602_spi_driver = { 684 .driver = { 685 .name = "ssm2602", 686 .owner = THIS_MODULE, 687 }, 688 .probe = ssm2602_spi_probe, 689 .remove = ssm2602_spi_remove, 690 }; 691 #endif 692 693 #if IS_ENABLED(CONFIG_I2C) 694 /* 695 * ssm2602 2 wire address is determined by GPIO5 696 * state during powerup. 697 * low = 0x1a 698 * high = 0x1b 699 */ 700 static int ssm2602_i2c_probe(struct i2c_client *i2c, 701 const struct i2c_device_id *id) 702 { 703 struct ssm2602_priv *ssm2602; 704 int ret; 705 706 ssm2602 = devm_kzalloc(&i2c->dev, sizeof(struct ssm2602_priv), 707 GFP_KERNEL); 708 if (ssm2602 == NULL) 709 return -ENOMEM; 710 711 i2c_set_clientdata(i2c, ssm2602); 712 ssm2602->type = id->driver_data; 713 714 ssm2602->regmap = devm_regmap_init_i2c(i2c, &ssm2602_regmap_config); 715 if (IS_ERR(ssm2602->regmap)) 716 return PTR_ERR(ssm2602->regmap); 717 718 ret = snd_soc_register_codec(&i2c->dev, 719 &soc_codec_dev_ssm2602, &ssm2602_dai, 1); 720 return ret; 721 } 722 723 static int ssm2602_i2c_remove(struct i2c_client *client) 724 { 725 snd_soc_unregister_codec(&client->dev); 726 return 0; 727 } 728 729 static const struct i2c_device_id ssm2602_i2c_id[] = { 730 { "ssm2602", SSM2602 }, 731 { "ssm2603", SSM2602 }, 732 { "ssm2604", SSM2604 }, 733 { } 734 }; 735 MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id); 736 737 /* corgi i2c codec control layer */ 738 static struct i2c_driver ssm2602_i2c_driver = { 739 .driver = { 740 .name = "ssm2602", 741 .owner = THIS_MODULE, 742 }, 743 .probe = ssm2602_i2c_probe, 744 .remove = ssm2602_i2c_remove, 745 .id_table = ssm2602_i2c_id, 746 }; 747 #endif 748 749 750 static int __init ssm2602_modinit(void) 751 { 752 int ret = 0; 753 754 #if defined(CONFIG_SPI_MASTER) 755 ret = spi_register_driver(&ssm2602_spi_driver); 756 if (ret) 757 return ret; 758 #endif 759 760 #if IS_ENABLED(CONFIG_I2C) 761 ret = i2c_add_driver(&ssm2602_i2c_driver); 762 if (ret) 763 return ret; 764 #endif 765 766 return ret; 767 } 768 module_init(ssm2602_modinit); 769 770 static void __exit ssm2602_exit(void) 771 { 772 #if defined(CONFIG_SPI_MASTER) 773 spi_unregister_driver(&ssm2602_spi_driver); 774 #endif 775 776 #if IS_ENABLED(CONFIG_I2C) 777 i2c_del_driver(&ssm2602_i2c_driver); 778 #endif 779 } 780 module_exit(ssm2602_exit); 781 782 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver"); 783 MODULE_AUTHOR("Cliff Cai"); 784 MODULE_LICENSE("GPL"); 785