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/slab.h> 37 #include <sound/core.h> 38 #include <sound/pcm.h> 39 #include <sound/pcm_params.h> 40 #include <sound/soc.h> 41 #include <sound/initval.h> 42 #include <sound/tlv.h> 43 44 #include "ssm2602.h" 45 46 #define SSM2602_VERSION "0.1" 47 48 enum ssm2602_type { 49 SSM2602, 50 SSM2604, 51 }; 52 53 /* codec private data */ 54 struct ssm2602_priv { 55 unsigned int sysclk; 56 enum snd_soc_control_type control_type; 57 struct snd_pcm_substream *master_substream; 58 struct snd_pcm_substream *slave_substream; 59 60 enum ssm2602_type type; 61 unsigned int clk_out_pwr; 62 }; 63 64 /* 65 * ssm2602 register cache 66 * We can't read the ssm2602 register space when we are 67 * using 2 wire for device control, so we cache them instead. 68 * There is no point in caching the reset register 69 */ 70 static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = { 71 0x0097, 0x0097, 0x0079, 0x0079, 72 0x000a, 0x0008, 0x009f, 0x000a, 73 0x0000, 0x0000 74 }; 75 76 #define ssm2602_reset(c) snd_soc_write(c, SSM2602_RESET, 0) 77 78 /*Appending several "None"s just for OSS mixer use*/ 79 static const char *ssm2602_input_select[] = { 80 "Line", "Mic", "None", "None", "None", 81 "None", "None", "None", 82 }; 83 84 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 85 86 static const struct soc_enum ssm2602_enum[] = { 87 SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select), 88 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph), 89 }; 90 91 static const unsigned int ssm260x_outmix_tlv[] = { 92 TLV_DB_RANGE_HEAD(2), 93 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0), 94 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0), 95 }; 96 97 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0); 98 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0); 99 100 static const struct snd_kcontrol_new ssm260x_snd_controls[] = { 101 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0, 102 ssm260x_inpga_tlv), 103 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), 104 105 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), 106 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), 107 108 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), 109 }; 110 111 static const struct snd_kcontrol_new ssm2602_snd_controls[] = { 112 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V, 113 0, 127, 0, ssm260x_outmix_tlv), 114 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V, 115 7, 1, 0), 116 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1, 117 ssm260x_sidetone_tlv), 118 119 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), 120 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), 121 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), 122 }; 123 124 /* Output Mixer */ 125 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = { 126 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0), 127 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0), 128 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), 129 }; 130 131 /* Input mux */ 132 static const struct snd_kcontrol_new ssm2602_input_mux_controls = 133 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]); 134 135 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = { 136 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1), 137 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), 138 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), 139 140 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0), 141 142 SND_SOC_DAPM_OUTPUT("LOUT"), 143 SND_SOC_DAPM_OUTPUT("ROUT"), 144 SND_SOC_DAPM_INPUT("RLINEIN"), 145 SND_SOC_DAPM_INPUT("LLINEIN"), 146 }; 147 148 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { 149 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, 150 ssm260x_output_mixer_controls, 151 ARRAY_SIZE(ssm260x_output_mixer_controls)), 152 153 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls), 154 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1), 155 156 SND_SOC_DAPM_OUTPUT("LHPOUT"), 157 SND_SOC_DAPM_OUTPUT("RHPOUT"), 158 SND_SOC_DAPM_INPUT("MICIN"), 159 }; 160 161 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = { 162 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, 163 ssm260x_output_mixer_controls, 164 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */ 165 }; 166 167 static const struct snd_soc_dapm_route ssm260x_routes[] = { 168 {"DAC", NULL, "Digital Core Power"}, 169 {"ADC", NULL, "Digital Core Power"}, 170 171 {"Output Mixer", "Line Bypass Switch", "Line Input"}, 172 {"Output Mixer", "HiFi Playback Switch", "DAC"}, 173 174 {"ROUT", NULL, "Output Mixer"}, 175 {"LOUT", NULL, "Output Mixer"}, 176 177 {"Line Input", NULL, "LLINEIN"}, 178 {"Line Input", NULL, "RLINEIN"}, 179 }; 180 181 static const struct snd_soc_dapm_route ssm2602_routes[] = { 182 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, 183 184 {"RHPOUT", NULL, "Output Mixer"}, 185 {"LHPOUT", NULL, "Output Mixer"}, 186 187 {"Input Mux", "Line", "Line Input"}, 188 {"Input Mux", "Mic", "Mic Bias"}, 189 {"ADC", NULL, "Input Mux"}, 190 191 {"Mic Bias", NULL, "MICIN"}, 192 }; 193 194 static const struct snd_soc_dapm_route ssm2604_routes[] = { 195 {"ADC", NULL, "Line Input"}, 196 }; 197 198 struct ssm2602_coeff { 199 u32 mclk; 200 u32 rate; 201 u8 srate; 202 }; 203 204 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb)) 205 206 /* codec mclk clock coefficients */ 207 static const struct ssm2602_coeff ssm2602_coeff_table[] = { 208 /* 48k */ 209 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)}, 210 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)}, 211 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)}, 212 213 /* 32k */ 214 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)}, 215 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)}, 216 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)}, 217 218 /* 8k */ 219 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)}, 220 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)}, 221 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)}, 222 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)}, 223 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)}, 224 225 /* 96k */ 226 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)}, 227 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)}, 228 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)}, 229 230 /* 44.1k */ 231 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)}, 232 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)}, 233 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)}, 234 235 /* 88.2k */ 236 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)}, 237 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)}, 238 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)}, 239 }; 240 241 static inline int ssm2602_get_coeff(int mclk, int rate) 242 { 243 int i; 244 245 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) { 246 if (ssm2602_coeff_table[i].rate == rate && 247 ssm2602_coeff_table[i].mclk == mclk) 248 return ssm2602_coeff_table[i].srate; 249 } 250 return -EINVAL; 251 } 252 253 static int ssm2602_hw_params(struct snd_pcm_substream *substream, 254 struct snd_pcm_hw_params *params, 255 struct snd_soc_dai *dai) 256 { 257 struct snd_soc_pcm_runtime *rtd = substream->private_data; 258 struct snd_soc_codec *codec = rtd->codec; 259 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 260 u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3; 261 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params)); 262 263 if (substream == ssm2602->slave_substream) { 264 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n"); 265 return 0; 266 } 267 268 if (srate < 0) 269 return srate; 270 271 snd_soc_write(codec, SSM2602_SRATE, srate); 272 273 /* bit size */ 274 switch (params_format(params)) { 275 case SNDRV_PCM_FORMAT_S16_LE: 276 break; 277 case SNDRV_PCM_FORMAT_S20_3LE: 278 iface |= 0x0004; 279 break; 280 case SNDRV_PCM_FORMAT_S24_LE: 281 iface |= 0x0008; 282 break; 283 case SNDRV_PCM_FORMAT_S32_LE: 284 iface |= 0x000c; 285 break; 286 } 287 snd_soc_write(codec, SSM2602_IFACE, iface); 288 return 0; 289 } 290 291 static int ssm2602_startup(struct snd_pcm_substream *substream, 292 struct snd_soc_dai *dai) 293 { 294 struct snd_soc_pcm_runtime *rtd = substream->private_data; 295 struct snd_soc_codec *codec = rtd->codec; 296 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 297 struct snd_pcm_runtime *master_runtime; 298 299 /* The DAI has shared clocks so if we already have a playback or 300 * capture going then constrain this substream to match it. 301 * TODO: the ssm2602 allows pairs of non-matching PB/REC rates 302 */ 303 if (ssm2602->master_substream) { 304 master_runtime = ssm2602->master_substream->runtime; 305 dev_dbg(codec->dev, "Constraining to %d bits at %dHz\n", 306 master_runtime->sample_bits, 307 master_runtime->rate); 308 309 if (master_runtime->rate != 0) 310 snd_pcm_hw_constraint_minmax(substream->runtime, 311 SNDRV_PCM_HW_PARAM_RATE, 312 master_runtime->rate, 313 master_runtime->rate); 314 315 if (master_runtime->sample_bits != 0) 316 snd_pcm_hw_constraint_minmax(substream->runtime, 317 SNDRV_PCM_HW_PARAM_SAMPLE_BITS, 318 master_runtime->sample_bits, 319 master_runtime->sample_bits); 320 321 ssm2602->slave_substream = substream; 322 } else 323 ssm2602->master_substream = substream; 324 325 return 0; 326 } 327 328 static void ssm2602_shutdown(struct snd_pcm_substream *substream, 329 struct snd_soc_dai *dai) 330 { 331 struct snd_soc_pcm_runtime *rtd = substream->private_data; 332 struct snd_soc_codec *codec = rtd->codec; 333 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 334 335 if (ssm2602->master_substream == substream) 336 ssm2602->master_substream = ssm2602->slave_substream; 337 338 ssm2602->slave_substream = NULL; 339 } 340 341 342 static int ssm2602_mute(struct snd_soc_dai *dai, int mute) 343 { 344 struct snd_soc_codec *codec = dai->codec; 345 346 if (mute) 347 snd_soc_update_bits(codec, SSM2602_APDIGI, 348 APDIGI_ENABLE_DAC_MUTE, 349 APDIGI_ENABLE_DAC_MUTE); 350 else 351 snd_soc_update_bits(codec, SSM2602_APDIGI, 352 APDIGI_ENABLE_DAC_MUTE, 0); 353 return 0; 354 } 355 356 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, 357 int clk_id, unsigned int freq, int dir) 358 { 359 struct snd_soc_codec *codec = codec_dai->codec; 360 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 361 362 if (dir == SND_SOC_CLOCK_IN) { 363 if (clk_id != SSM2602_SYSCLK) 364 return -EINVAL; 365 366 switch (freq) { 367 case 11289600: 368 case 12000000: 369 case 12288000: 370 case 16934400: 371 case 18432000: 372 ssm2602->sysclk = freq; 373 break; 374 default: 375 return -EINVAL; 376 } 377 } else { 378 unsigned int mask; 379 380 switch (clk_id) { 381 case SSM2602_CLK_CLKOUT: 382 mask = PWR_CLK_OUT_PDN; 383 break; 384 case SSM2602_CLK_XTO: 385 mask = PWR_OSC_PDN; 386 break; 387 default: 388 return -EINVAL; 389 } 390 391 if (freq == 0) 392 ssm2602->clk_out_pwr |= mask; 393 else 394 ssm2602->clk_out_pwr &= ~mask; 395 396 snd_soc_update_bits(codec, SSM2602_PWR, 397 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); 398 } 399 400 return 0; 401 } 402 403 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, 404 unsigned int fmt) 405 { 406 struct snd_soc_codec *codec = codec_dai->codec; 407 u16 iface = 0; 408 409 /* set master/slave audio interface */ 410 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 411 case SND_SOC_DAIFMT_CBM_CFM: 412 iface |= 0x0040; 413 break; 414 case SND_SOC_DAIFMT_CBS_CFS: 415 break; 416 default: 417 return -EINVAL; 418 } 419 420 /* interface format */ 421 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 422 case SND_SOC_DAIFMT_I2S: 423 iface |= 0x0002; 424 break; 425 case SND_SOC_DAIFMT_RIGHT_J: 426 break; 427 case SND_SOC_DAIFMT_LEFT_J: 428 iface |= 0x0001; 429 break; 430 case SND_SOC_DAIFMT_DSP_A: 431 iface |= 0x0013; 432 break; 433 case SND_SOC_DAIFMT_DSP_B: 434 iface |= 0x0003; 435 break; 436 default: 437 return -EINVAL; 438 } 439 440 /* clock inversion */ 441 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 442 case SND_SOC_DAIFMT_NB_NF: 443 break; 444 case SND_SOC_DAIFMT_IB_IF: 445 iface |= 0x0090; 446 break; 447 case SND_SOC_DAIFMT_IB_NF: 448 iface |= 0x0080; 449 break; 450 case SND_SOC_DAIFMT_NB_IF: 451 iface |= 0x0010; 452 break; 453 default: 454 return -EINVAL; 455 } 456 457 /* set iface */ 458 snd_soc_write(codec, SSM2602_IFACE, iface); 459 return 0; 460 } 461 462 static int ssm2602_set_bias_level(struct snd_soc_codec *codec, 463 enum snd_soc_bias_level level) 464 { 465 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 466 467 switch (level) { 468 case SND_SOC_BIAS_ON: 469 /* vref/mid on, osc and clkout on if enabled */ 470 snd_soc_update_bits(codec, SSM2602_PWR, 471 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 472 ssm2602->clk_out_pwr); 473 break; 474 case SND_SOC_BIAS_PREPARE: 475 break; 476 case SND_SOC_BIAS_STANDBY: 477 /* everything off except vref/vmid, */ 478 snd_soc_update_bits(codec, SSM2602_PWR, 479 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 480 PWR_CLK_OUT_PDN | PWR_OSC_PDN); 481 break; 482 case SND_SOC_BIAS_OFF: 483 /* everything off */ 484 snd_soc_update_bits(codec, SSM2602_PWR, 485 PWR_POWER_OFF, PWR_POWER_OFF); 486 break; 487 488 } 489 codec->dapm.bias_level = level; 490 return 0; 491 } 492 493 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\ 494 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ 495 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) 496 497 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 498 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 499 500 static const struct snd_soc_dai_ops ssm2602_dai_ops = { 501 .startup = ssm2602_startup, 502 .hw_params = ssm2602_hw_params, 503 .shutdown = ssm2602_shutdown, 504 .digital_mute = ssm2602_mute, 505 .set_sysclk = ssm2602_set_dai_sysclk, 506 .set_fmt = ssm2602_set_dai_fmt, 507 }; 508 509 static struct snd_soc_dai_driver ssm2602_dai = { 510 .name = "ssm2602-hifi", 511 .playback = { 512 .stream_name = "Playback", 513 .channels_min = 2, 514 .channels_max = 2, 515 .rates = SSM2602_RATES, 516 .formats = SSM2602_FORMATS,}, 517 .capture = { 518 .stream_name = "Capture", 519 .channels_min = 2, 520 .channels_max = 2, 521 .rates = SSM2602_RATES, 522 .formats = SSM2602_FORMATS,}, 523 .ops = &ssm2602_dai_ops, 524 }; 525 526 static int ssm2602_suspend(struct snd_soc_codec *codec) 527 { 528 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 529 return 0; 530 } 531 532 static int ssm2602_resume(struct snd_soc_codec *codec) 533 { 534 snd_soc_cache_sync(codec); 535 536 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 537 538 return 0; 539 } 540 541 static int ssm2602_probe(struct snd_soc_codec *codec) 542 { 543 struct snd_soc_dapm_context *dapm = &codec->dapm; 544 int ret; 545 546 snd_soc_update_bits(codec, SSM2602_LOUT1V, 547 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); 548 snd_soc_update_bits(codec, SSM2602_ROUT1V, 549 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH); 550 551 ret = snd_soc_add_controls(codec, ssm2602_snd_controls, 552 ARRAY_SIZE(ssm2602_snd_controls)); 553 if (ret) 554 return ret; 555 556 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, 557 ARRAY_SIZE(ssm2602_dapm_widgets)); 558 if (ret) 559 return ret; 560 561 return snd_soc_dapm_add_routes(dapm, ssm2602_routes, 562 ARRAY_SIZE(ssm2602_routes)); 563 } 564 565 static int ssm2604_probe(struct snd_soc_codec *codec) 566 { 567 struct snd_soc_dapm_context *dapm = &codec->dapm; 568 int ret; 569 570 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, 571 ARRAY_SIZE(ssm2604_dapm_widgets)); 572 if (ret) 573 return ret; 574 575 return snd_soc_dapm_add_routes(dapm, ssm2604_routes, 576 ARRAY_SIZE(ssm2604_routes)); 577 } 578 579 static int ssm260x_probe(struct snd_soc_codec *codec) 580 { 581 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 582 int ret; 583 584 pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION); 585 586 ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type); 587 if (ret < 0) { 588 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 589 return ret; 590 } 591 592 ret = ssm2602_reset(codec); 593 if (ret < 0) { 594 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 595 return ret; 596 } 597 598 /* set the update bits */ 599 snd_soc_update_bits(codec, SSM2602_LINVOL, 600 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); 601 snd_soc_update_bits(codec, SSM2602_RINVOL, 602 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); 603 /*select Line in as default input*/ 604 snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC | 605 APANA_ENABLE_MIC_BOOST); 606 607 switch (ssm2602->type) { 608 case SSM2602: 609 ret = ssm2602_probe(codec); 610 break; 611 case SSM2604: 612 ret = ssm2604_probe(codec); 613 break; 614 } 615 616 if (ret) 617 return ret; 618 619 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 620 621 return 0; 622 } 623 624 /* remove everything here */ 625 static int ssm2602_remove(struct snd_soc_codec *codec) 626 { 627 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 628 return 0; 629 } 630 631 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { 632 .probe = ssm260x_probe, 633 .remove = ssm2602_remove, 634 .suspend = ssm2602_suspend, 635 .resume = ssm2602_resume, 636 .set_bias_level = ssm2602_set_bias_level, 637 .reg_cache_size = ARRAY_SIZE(ssm2602_reg), 638 .reg_word_size = sizeof(u16), 639 .reg_cache_default = ssm2602_reg, 640 641 .controls = ssm260x_snd_controls, 642 .num_controls = ARRAY_SIZE(ssm260x_snd_controls), 643 .dapm_widgets = ssm260x_dapm_widgets, 644 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), 645 .dapm_routes = ssm260x_routes, 646 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), 647 }; 648 649 #if defined(CONFIG_SPI_MASTER) 650 static int __devinit ssm2602_spi_probe(struct spi_device *spi) 651 { 652 struct ssm2602_priv *ssm2602; 653 int ret; 654 655 ssm2602 = devm_kzalloc(&spi->dev, sizeof(struct ssm2602_priv), 656 GFP_KERNEL); 657 if (ssm2602 == NULL) 658 return -ENOMEM; 659 660 spi_set_drvdata(spi, ssm2602); 661 ssm2602->control_type = SND_SOC_SPI; 662 ssm2602->type = SSM2602; 663 664 ret = snd_soc_register_codec(&spi->dev, 665 &soc_codec_dev_ssm2602, &ssm2602_dai, 1); 666 return ret; 667 } 668 669 static int __devexit ssm2602_spi_remove(struct spi_device *spi) 670 { 671 snd_soc_unregister_codec(&spi->dev); 672 return 0; 673 } 674 675 static struct spi_driver ssm2602_spi_driver = { 676 .driver = { 677 .name = "ssm2602", 678 .owner = THIS_MODULE, 679 }, 680 .probe = ssm2602_spi_probe, 681 .remove = __devexit_p(ssm2602_spi_remove), 682 }; 683 #endif 684 685 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 686 /* 687 * ssm2602 2 wire address is determined by GPIO5 688 * state during powerup. 689 * low = 0x1a 690 * high = 0x1b 691 */ 692 static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c, 693 const struct i2c_device_id *id) 694 { 695 struct ssm2602_priv *ssm2602; 696 int ret; 697 698 ssm2602 = devm_kzalloc(&i2c->dev, sizeof(struct ssm2602_priv), 699 GFP_KERNEL); 700 if (ssm2602 == NULL) 701 return -ENOMEM; 702 703 i2c_set_clientdata(i2c, ssm2602); 704 ssm2602->control_type = SND_SOC_I2C; 705 ssm2602->type = id->driver_data; 706 707 ret = snd_soc_register_codec(&i2c->dev, 708 &soc_codec_dev_ssm2602, &ssm2602_dai, 1); 709 return ret; 710 } 711 712 static int __devexit ssm2602_i2c_remove(struct i2c_client *client) 713 { 714 snd_soc_unregister_codec(&client->dev); 715 return 0; 716 } 717 718 static const struct i2c_device_id ssm2602_i2c_id[] = { 719 { "ssm2602", SSM2602 }, 720 { "ssm2603", SSM2602 }, 721 { "ssm2604", SSM2604 }, 722 { } 723 }; 724 MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id); 725 726 /* corgi i2c codec control layer */ 727 static struct i2c_driver ssm2602_i2c_driver = { 728 .driver = { 729 .name = "ssm2602", 730 .owner = THIS_MODULE, 731 }, 732 .probe = ssm2602_i2c_probe, 733 .remove = __devexit_p(ssm2602_i2c_remove), 734 .id_table = ssm2602_i2c_id, 735 }; 736 #endif 737 738 739 static int __init ssm2602_modinit(void) 740 { 741 int ret = 0; 742 743 #if defined(CONFIG_SPI_MASTER) 744 ret = spi_register_driver(&ssm2602_spi_driver); 745 if (ret) 746 return ret; 747 #endif 748 749 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 750 ret = i2c_add_driver(&ssm2602_i2c_driver); 751 if (ret) 752 return ret; 753 #endif 754 755 return ret; 756 } 757 module_init(ssm2602_modinit); 758 759 static void __exit ssm2602_exit(void) 760 { 761 #if defined(CONFIG_SPI_MASTER) 762 spi_unregister_driver(&ssm2602_spi_driver); 763 #endif 764 765 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 766 i2c_del_driver(&ssm2602_i2c_driver); 767 #endif 768 } 769 module_exit(ssm2602_exit); 770 771 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver"); 772 MODULE_AUTHOR("Cliff Cai"); 773 MODULE_LICENSE("GPL"); 774