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_codec *codec = dai->codec; 258 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 259 u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3; 260 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params)); 261 262 if (substream == ssm2602->slave_substream) { 263 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n"); 264 return 0; 265 } 266 267 if (srate < 0) 268 return srate; 269 270 snd_soc_write(codec, SSM2602_SRATE, srate); 271 272 /* bit size */ 273 switch (params_format(params)) { 274 case SNDRV_PCM_FORMAT_S16_LE: 275 break; 276 case SNDRV_PCM_FORMAT_S20_3LE: 277 iface |= 0x0004; 278 break; 279 case SNDRV_PCM_FORMAT_S24_LE: 280 iface |= 0x0008; 281 break; 282 case SNDRV_PCM_FORMAT_S32_LE: 283 iface |= 0x000c; 284 break; 285 } 286 snd_soc_write(codec, SSM2602_IFACE, iface); 287 return 0; 288 } 289 290 static int ssm2602_startup(struct snd_pcm_substream *substream, 291 struct snd_soc_dai *dai) 292 { 293 struct snd_soc_codec *codec = dai->codec; 294 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 295 struct snd_pcm_runtime *master_runtime; 296 297 /* The DAI has shared clocks so if we already have a playback or 298 * capture going then constrain this substream to match it. 299 * TODO: the ssm2602 allows pairs of non-matching PB/REC rates 300 */ 301 if (ssm2602->master_substream) { 302 master_runtime = ssm2602->master_substream->runtime; 303 dev_dbg(codec->dev, "Constraining to %d bits at %dHz\n", 304 master_runtime->sample_bits, 305 master_runtime->rate); 306 307 if (master_runtime->rate != 0) 308 snd_pcm_hw_constraint_minmax(substream->runtime, 309 SNDRV_PCM_HW_PARAM_RATE, 310 master_runtime->rate, 311 master_runtime->rate); 312 313 if (master_runtime->sample_bits != 0) 314 snd_pcm_hw_constraint_minmax(substream->runtime, 315 SNDRV_PCM_HW_PARAM_SAMPLE_BITS, 316 master_runtime->sample_bits, 317 master_runtime->sample_bits); 318 319 ssm2602->slave_substream = substream; 320 } else 321 ssm2602->master_substream = substream; 322 323 return 0; 324 } 325 326 static void ssm2602_shutdown(struct snd_pcm_substream *substream, 327 struct snd_soc_dai *dai) 328 { 329 struct snd_soc_codec *codec = dai->codec; 330 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 331 332 if (ssm2602->master_substream == substream) 333 ssm2602->master_substream = ssm2602->slave_substream; 334 335 ssm2602->slave_substream = NULL; 336 } 337 338 339 static int ssm2602_mute(struct snd_soc_dai *dai, int mute) 340 { 341 struct snd_soc_codec *codec = dai->codec; 342 343 if (mute) 344 snd_soc_update_bits(codec, SSM2602_APDIGI, 345 APDIGI_ENABLE_DAC_MUTE, 346 APDIGI_ENABLE_DAC_MUTE); 347 else 348 snd_soc_update_bits(codec, SSM2602_APDIGI, 349 APDIGI_ENABLE_DAC_MUTE, 0); 350 return 0; 351 } 352 353 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, 354 int clk_id, unsigned int freq, int dir) 355 { 356 struct snd_soc_codec *codec = codec_dai->codec; 357 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 358 359 if (dir == SND_SOC_CLOCK_IN) { 360 if (clk_id != SSM2602_SYSCLK) 361 return -EINVAL; 362 363 switch (freq) { 364 case 11289600: 365 case 12000000: 366 case 12288000: 367 case 16934400: 368 case 18432000: 369 ssm2602->sysclk = freq; 370 break; 371 default: 372 return -EINVAL; 373 } 374 } else { 375 unsigned int mask; 376 377 switch (clk_id) { 378 case SSM2602_CLK_CLKOUT: 379 mask = PWR_CLK_OUT_PDN; 380 break; 381 case SSM2602_CLK_XTO: 382 mask = PWR_OSC_PDN; 383 break; 384 default: 385 return -EINVAL; 386 } 387 388 if (freq == 0) 389 ssm2602->clk_out_pwr |= mask; 390 else 391 ssm2602->clk_out_pwr &= ~mask; 392 393 snd_soc_update_bits(codec, SSM2602_PWR, 394 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); 395 } 396 397 return 0; 398 } 399 400 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, 401 unsigned int fmt) 402 { 403 struct snd_soc_codec *codec = codec_dai->codec; 404 u16 iface = 0; 405 406 /* set master/slave audio interface */ 407 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 408 case SND_SOC_DAIFMT_CBM_CFM: 409 iface |= 0x0040; 410 break; 411 case SND_SOC_DAIFMT_CBS_CFS: 412 break; 413 default: 414 return -EINVAL; 415 } 416 417 /* interface format */ 418 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 419 case SND_SOC_DAIFMT_I2S: 420 iface |= 0x0002; 421 break; 422 case SND_SOC_DAIFMT_RIGHT_J: 423 break; 424 case SND_SOC_DAIFMT_LEFT_J: 425 iface |= 0x0001; 426 break; 427 case SND_SOC_DAIFMT_DSP_A: 428 iface |= 0x0013; 429 break; 430 case SND_SOC_DAIFMT_DSP_B: 431 iface |= 0x0003; 432 break; 433 default: 434 return -EINVAL; 435 } 436 437 /* clock inversion */ 438 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 439 case SND_SOC_DAIFMT_NB_NF: 440 break; 441 case SND_SOC_DAIFMT_IB_IF: 442 iface |= 0x0090; 443 break; 444 case SND_SOC_DAIFMT_IB_NF: 445 iface |= 0x0080; 446 break; 447 case SND_SOC_DAIFMT_NB_IF: 448 iface |= 0x0010; 449 break; 450 default: 451 return -EINVAL; 452 } 453 454 /* set iface */ 455 snd_soc_write(codec, SSM2602_IFACE, iface); 456 return 0; 457 } 458 459 static int ssm2602_set_bias_level(struct snd_soc_codec *codec, 460 enum snd_soc_bias_level level) 461 { 462 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 463 464 switch (level) { 465 case SND_SOC_BIAS_ON: 466 /* vref/mid on, osc and clkout on if enabled */ 467 snd_soc_update_bits(codec, SSM2602_PWR, 468 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 469 ssm2602->clk_out_pwr); 470 break; 471 case SND_SOC_BIAS_PREPARE: 472 break; 473 case SND_SOC_BIAS_STANDBY: 474 /* everything off except vref/vmid, */ 475 snd_soc_update_bits(codec, SSM2602_PWR, 476 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 477 PWR_CLK_OUT_PDN | PWR_OSC_PDN); 478 break; 479 case SND_SOC_BIAS_OFF: 480 /* everything off */ 481 snd_soc_update_bits(codec, SSM2602_PWR, 482 PWR_POWER_OFF, PWR_POWER_OFF); 483 break; 484 485 } 486 codec->dapm.bias_level = level; 487 return 0; 488 } 489 490 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\ 491 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ 492 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) 493 494 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 495 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 496 497 static const struct snd_soc_dai_ops ssm2602_dai_ops = { 498 .startup = ssm2602_startup, 499 .hw_params = ssm2602_hw_params, 500 .shutdown = ssm2602_shutdown, 501 .digital_mute = ssm2602_mute, 502 .set_sysclk = ssm2602_set_dai_sysclk, 503 .set_fmt = ssm2602_set_dai_fmt, 504 }; 505 506 static struct snd_soc_dai_driver ssm2602_dai = { 507 .name = "ssm2602-hifi", 508 .playback = { 509 .stream_name = "Playback", 510 .channels_min = 2, 511 .channels_max = 2, 512 .rates = SSM2602_RATES, 513 .formats = SSM2602_FORMATS,}, 514 .capture = { 515 .stream_name = "Capture", 516 .channels_min = 2, 517 .channels_max = 2, 518 .rates = SSM2602_RATES, 519 .formats = SSM2602_FORMATS,}, 520 .ops = &ssm2602_dai_ops, 521 }; 522 523 static int ssm2602_suspend(struct snd_soc_codec *codec) 524 { 525 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 526 return 0; 527 } 528 529 static int ssm2602_resume(struct snd_soc_codec *codec) 530 { 531 snd_soc_cache_sync(codec); 532 533 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 534 535 return 0; 536 } 537 538 static int ssm2602_probe(struct snd_soc_codec *codec) 539 { 540 struct snd_soc_dapm_context *dapm = &codec->dapm; 541 int ret; 542 543 snd_soc_update_bits(codec, SSM2602_LOUT1V, 544 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); 545 snd_soc_update_bits(codec, SSM2602_ROUT1V, 546 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH); 547 548 ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls, 549 ARRAY_SIZE(ssm2602_snd_controls)); 550 if (ret) 551 return ret; 552 553 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, 554 ARRAY_SIZE(ssm2602_dapm_widgets)); 555 if (ret) 556 return ret; 557 558 return snd_soc_dapm_add_routes(dapm, ssm2602_routes, 559 ARRAY_SIZE(ssm2602_routes)); 560 } 561 562 static int ssm2604_probe(struct snd_soc_codec *codec) 563 { 564 struct snd_soc_dapm_context *dapm = &codec->dapm; 565 int ret; 566 567 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, 568 ARRAY_SIZE(ssm2604_dapm_widgets)); 569 if (ret) 570 return ret; 571 572 return snd_soc_dapm_add_routes(dapm, ssm2604_routes, 573 ARRAY_SIZE(ssm2604_routes)); 574 } 575 576 static int ssm260x_probe(struct snd_soc_codec *codec) 577 { 578 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 579 int ret; 580 581 pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION); 582 583 ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type); 584 if (ret < 0) { 585 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 586 return ret; 587 } 588 589 ret = ssm2602_reset(codec); 590 if (ret < 0) { 591 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 592 return ret; 593 } 594 595 /* set the update bits */ 596 snd_soc_update_bits(codec, SSM2602_LINVOL, 597 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); 598 snd_soc_update_bits(codec, SSM2602_RINVOL, 599 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); 600 /*select Line in as default input*/ 601 snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC | 602 APANA_ENABLE_MIC_BOOST); 603 604 switch (ssm2602->type) { 605 case SSM2602: 606 ret = ssm2602_probe(codec); 607 break; 608 case SSM2604: 609 ret = ssm2604_probe(codec); 610 break; 611 } 612 613 if (ret) 614 return ret; 615 616 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 617 618 return 0; 619 } 620 621 /* remove everything here */ 622 static int ssm2602_remove(struct snd_soc_codec *codec) 623 { 624 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 625 return 0; 626 } 627 628 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { 629 .probe = ssm260x_probe, 630 .remove = ssm2602_remove, 631 .suspend = ssm2602_suspend, 632 .resume = ssm2602_resume, 633 .set_bias_level = ssm2602_set_bias_level, 634 .reg_cache_size = ARRAY_SIZE(ssm2602_reg), 635 .reg_word_size = sizeof(u16), 636 .reg_cache_default = ssm2602_reg, 637 638 .controls = ssm260x_snd_controls, 639 .num_controls = ARRAY_SIZE(ssm260x_snd_controls), 640 .dapm_widgets = ssm260x_dapm_widgets, 641 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), 642 .dapm_routes = ssm260x_routes, 643 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), 644 }; 645 646 #if defined(CONFIG_SPI_MASTER) 647 static int __devinit ssm2602_spi_probe(struct spi_device *spi) 648 { 649 struct ssm2602_priv *ssm2602; 650 int ret; 651 652 ssm2602 = devm_kzalloc(&spi->dev, sizeof(struct ssm2602_priv), 653 GFP_KERNEL); 654 if (ssm2602 == NULL) 655 return -ENOMEM; 656 657 spi_set_drvdata(spi, ssm2602); 658 ssm2602->control_type = SND_SOC_SPI; 659 ssm2602->type = SSM2602; 660 661 ret = snd_soc_register_codec(&spi->dev, 662 &soc_codec_dev_ssm2602, &ssm2602_dai, 1); 663 return ret; 664 } 665 666 static int __devexit ssm2602_spi_remove(struct spi_device *spi) 667 { 668 snd_soc_unregister_codec(&spi->dev); 669 return 0; 670 } 671 672 static struct spi_driver ssm2602_spi_driver = { 673 .driver = { 674 .name = "ssm2602", 675 .owner = THIS_MODULE, 676 }, 677 .probe = ssm2602_spi_probe, 678 .remove = __devexit_p(ssm2602_spi_remove), 679 }; 680 #endif 681 682 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 683 /* 684 * ssm2602 2 wire address is determined by GPIO5 685 * state during powerup. 686 * low = 0x1a 687 * high = 0x1b 688 */ 689 static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c, 690 const struct i2c_device_id *id) 691 { 692 struct ssm2602_priv *ssm2602; 693 int ret; 694 695 ssm2602 = devm_kzalloc(&i2c->dev, sizeof(struct ssm2602_priv), 696 GFP_KERNEL); 697 if (ssm2602 == NULL) 698 return -ENOMEM; 699 700 i2c_set_clientdata(i2c, ssm2602); 701 ssm2602->control_type = SND_SOC_I2C; 702 ssm2602->type = id->driver_data; 703 704 ret = snd_soc_register_codec(&i2c->dev, 705 &soc_codec_dev_ssm2602, &ssm2602_dai, 1); 706 return ret; 707 } 708 709 static int __devexit ssm2602_i2c_remove(struct i2c_client *client) 710 { 711 snd_soc_unregister_codec(&client->dev); 712 return 0; 713 } 714 715 static const struct i2c_device_id ssm2602_i2c_id[] = { 716 { "ssm2602", SSM2602 }, 717 { "ssm2603", SSM2602 }, 718 { "ssm2604", SSM2604 }, 719 { } 720 }; 721 MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id); 722 723 /* corgi i2c codec control layer */ 724 static struct i2c_driver ssm2602_i2c_driver = { 725 .driver = { 726 .name = "ssm2602", 727 .owner = THIS_MODULE, 728 }, 729 .probe = ssm2602_i2c_probe, 730 .remove = __devexit_p(ssm2602_i2c_remove), 731 .id_table = ssm2602_i2c_id, 732 }; 733 #endif 734 735 736 static int __init ssm2602_modinit(void) 737 { 738 int ret = 0; 739 740 #if defined(CONFIG_SPI_MASTER) 741 ret = spi_register_driver(&ssm2602_spi_driver); 742 if (ret) 743 return ret; 744 #endif 745 746 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 747 ret = i2c_add_driver(&ssm2602_i2c_driver); 748 if (ret) 749 return ret; 750 #endif 751 752 return ret; 753 } 754 module_init(ssm2602_modinit); 755 756 static void __exit ssm2602_exit(void) 757 { 758 #if defined(CONFIG_SPI_MASTER) 759 spi_unregister_driver(&ssm2602_spi_driver); 760 #endif 761 762 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 763 i2c_del_driver(&ssm2602_i2c_driver); 764 #endif 765 } 766 module_exit(ssm2602_exit); 767 768 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver"); 769 MODULE_AUTHOR("Cliff Cai"); 770 MODULE_LICENSE("GPL"); 771