Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 1 | /* |
| 2 | * wm8737.c -- WM8737 ALSA SoC Audio driver |
| 3 | * |
| 4 | * Copyright 2010 Wolfson Microelectronics plc |
| 5 | * |
| 6 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> |
| 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 version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/moduleparam.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/pm.h> |
| 18 | #include <linux/i2c.h> |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 19 | #include <linux/regulator/consumer.h> |
| 20 | #include <linux/spi/spi.h> |
| 21 | #include <linux/slab.h> |
Mark Brown | 53a5a83 | 2011-08-03 16:53:22 +0900 | [diff] [blame] | 22 | #include <linux/of_device.h> |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 23 | #include <sound/core.h> |
| 24 | #include <sound/pcm.h> |
| 25 | #include <sound/pcm_params.h> |
| 26 | #include <sound/soc.h> |
| 27 | #include <sound/soc-dapm.h> |
| 28 | #include <sound/initval.h> |
| 29 | #include <sound/tlv.h> |
| 30 | |
| 31 | #include "wm8737.h" |
| 32 | |
| 33 | #define WM8737_NUM_SUPPLIES 4 |
| 34 | static const char *wm8737_supply_names[WM8737_NUM_SUPPLIES] = { |
| 35 | "DCVDD", |
| 36 | "DBVDD", |
| 37 | "AVDD", |
| 38 | "MVDD", |
| 39 | }; |
| 40 | |
| 41 | /* codec private data */ |
| 42 | struct wm8737_priv { |
| 43 | enum snd_soc_control_type control_type; |
| 44 | struct regulator_bulk_data supplies[WM8737_NUM_SUPPLIES]; |
| 45 | unsigned int mclk; |
| 46 | }; |
| 47 | |
| 48 | static const u16 wm8737_reg[WM8737_REGISTER_COUNT] = { |
| 49 | 0x00C3, /* R0 - Left PGA volume */ |
| 50 | 0x00C3, /* R1 - Right PGA volume */ |
| 51 | 0x0007, /* R2 - AUDIO path L */ |
| 52 | 0x0007, /* R3 - AUDIO path R */ |
| 53 | 0x0000, /* R4 - 3D Enhance */ |
| 54 | 0x0000, /* R5 - ADC Control */ |
| 55 | 0x0000, /* R6 - Power Management */ |
| 56 | 0x000A, /* R7 - Audio Format */ |
| 57 | 0x0000, /* R8 - Clocking */ |
| 58 | 0x000F, /* R9 - MIC Preamp Control */ |
| 59 | 0x0003, /* R10 - Misc Bias Control */ |
| 60 | 0x0000, /* R11 - Noise Gate */ |
| 61 | 0x007C, /* R12 - ALC1 */ |
| 62 | 0x0000, /* R13 - ALC2 */ |
| 63 | 0x0032, /* R14 - ALC3 */ |
| 64 | }; |
| 65 | |
| 66 | static int wm8737_reset(struct snd_soc_codec *codec) |
| 67 | { |
| 68 | return snd_soc_write(codec, WM8737_RESET, 0); |
| 69 | } |
| 70 | |
| 71 | static const unsigned int micboost_tlv[] = { |
| 72 | TLV_DB_RANGE_HEAD(4), |
| 73 | 0, 0, TLV_DB_SCALE_ITEM(1300, 0, 0), |
| 74 | 1, 1, TLV_DB_SCALE_ITEM(1800, 0, 0), |
| 75 | 2, 2, TLV_DB_SCALE_ITEM(2800, 0, 0), |
| 76 | 3, 3, TLV_DB_SCALE_ITEM(3300, 0, 0), |
| 77 | }; |
| 78 | static const DECLARE_TLV_DB_SCALE(pga_tlv, -9750, 50, 1); |
| 79 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -600, 600, 0); |
| 80 | static const DECLARE_TLV_DB_SCALE(ng_tlv, -7800, 600, 0); |
Mark Brown | fcd02e2 | 2010-11-24 16:27:08 +0000 | [diff] [blame] | 81 | static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -1200, 600, 0); |
| 82 | static const DECLARE_TLV_DB_SCALE(alc_target_tlv, -1800, 100, 0); |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 83 | |
| 84 | static const char *micbias_enum_text[] = { |
| 85 | "25%", |
| 86 | "50%", |
| 87 | "75%", |
| 88 | "100%", |
| 89 | }; |
| 90 | |
| 91 | static const struct soc_enum micbias_enum = |
| 92 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 0, 4, micbias_enum_text); |
| 93 | |
| 94 | static const char *low_cutoff_text[] = { |
| 95 | "Low", "High" |
| 96 | }; |
| 97 | |
| 98 | static const struct soc_enum low_3d = |
| 99 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 6, 2, low_cutoff_text); |
| 100 | |
| 101 | static const char *high_cutoff_text[] = { |
| 102 | "High", "Low" |
| 103 | }; |
| 104 | |
| 105 | static const struct soc_enum high_3d = |
| 106 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 5, 2, high_cutoff_text); |
| 107 | |
Mark Brown | fcd02e2 | 2010-11-24 16:27:08 +0000 | [diff] [blame] | 108 | static const char *alc_fn_text[] = { |
| 109 | "Disabled", "Right", "Left", "Stereo" |
| 110 | }; |
| 111 | |
| 112 | static const struct soc_enum alc_fn = |
| 113 | SOC_ENUM_SINGLE(WM8737_ALC1, 7, 4, alc_fn_text); |
| 114 | |
| 115 | static const char *alc_hold_text[] = { |
| 116 | "0", "2.67ms", "5.33ms", "10.66ms", "21.32ms", "42.64ms", "85.28ms", |
| 117 | "170.56ms", "341.12ms", "682.24ms", "1.364s", "2.728s", "5.458s", |
| 118 | "10.916s", "21.832s", "43.691s" |
| 119 | }; |
| 120 | |
| 121 | static const struct soc_enum alc_hold = |
| 122 | SOC_ENUM_SINGLE(WM8737_ALC2, 0, 16, alc_hold_text); |
| 123 | |
| 124 | static const char *alc_atk_text[] = { |
| 125 | "8.4ms", "16.8ms", "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", |
| 126 | "1.075s", "2.15s", "4.3s", "8.6s" |
| 127 | }; |
| 128 | |
| 129 | static const struct soc_enum alc_atk = |
| 130 | SOC_ENUM_SINGLE(WM8737_ALC3, 0, 11, alc_atk_text); |
| 131 | |
| 132 | static const char *alc_dcy_text[] = { |
| 133 | "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", "1.075s", "2.15s", |
| 134 | "4.3s", "8.6s", "17.2s", "34.41s" |
| 135 | }; |
| 136 | |
| 137 | static const struct soc_enum alc_dcy = |
| 138 | SOC_ENUM_SINGLE(WM8737_ALC3, 4, 11, alc_dcy_text); |
| 139 | |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 140 | static const struct snd_kcontrol_new wm8737_snd_controls[] = { |
| 141 | SOC_DOUBLE_R_TLV("Mic Boost Volume", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 142 | 6, 3, 0, micboost_tlv), |
| 143 | SOC_DOUBLE_R("Mic Boost Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 144 | 4, 1, 0), |
| 145 | SOC_DOUBLE("Mic ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 146 | 3, 1, 0), |
| 147 | |
| 148 | SOC_DOUBLE_R_TLV("Capture Volume", WM8737_LEFT_PGA_VOLUME, |
| 149 | WM8737_RIGHT_PGA_VOLUME, 0, 255, 0, pga_tlv), |
| 150 | SOC_DOUBLE("Capture ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 151 | 2, 1, 0), |
| 152 | |
| 153 | SOC_DOUBLE("INPUT1 DC Bias Switch", WM8737_MISC_BIAS_CONTROL, 0, 1, 1, 0), |
| 154 | |
| 155 | SOC_ENUM("Mic PGA Bias", micbias_enum), |
| 156 | SOC_SINGLE("ADC Low Power Switch", WM8737_ADC_CONTROL, 2, 1, 0), |
| 157 | SOC_SINGLE("High Pass Filter Switch", WM8737_ADC_CONTROL, 0, 1, 1), |
| 158 | SOC_DOUBLE("Polarity Invert Switch", WM8737_ADC_CONTROL, 5, 6, 1, 0), |
| 159 | |
| 160 | SOC_SINGLE("3D Switch", WM8737_3D_ENHANCE, 0, 1, 0), |
| 161 | SOC_SINGLE("3D Depth", WM8737_3D_ENHANCE, 1, 15, 0), |
| 162 | SOC_ENUM("3D Low Cut-off", low_3d), |
| 163 | SOC_ENUM("3D High Cut-off", low_3d), |
| 164 | SOC_SINGLE_TLV("3D ADC Volume", WM8737_3D_ENHANCE, 7, 1, 1, adc_tlv), |
| 165 | |
| 166 | SOC_SINGLE("Noise Gate Switch", WM8737_NOISE_GATE, 0, 1, 0), |
| 167 | SOC_SINGLE_TLV("Noise Gate Threshold Volume", WM8737_NOISE_GATE, 2, 7, 0, |
| 168 | ng_tlv), |
Mark Brown | fcd02e2 | 2010-11-24 16:27:08 +0000 | [diff] [blame] | 169 | |
| 170 | SOC_ENUM("ALC", alc_fn), |
| 171 | SOC_SINGLE_TLV("ALC Max Gain Volume", WM8737_ALC1, 4, 7, 0, alc_max_tlv), |
| 172 | SOC_SINGLE_TLV("ALC Target Volume", WM8737_ALC1, 0, 15, 0, alc_target_tlv), |
| 173 | SOC_ENUM("ALC Hold Time", alc_hold), |
| 174 | SOC_SINGLE("ALC ZC Switch", WM8737_ALC2, 4, 1, 0), |
| 175 | SOC_ENUM("ALC Attack Time", alc_atk), |
| 176 | SOC_ENUM("ALC Decay Time", alc_dcy), |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 177 | }; |
| 178 | |
| 179 | static const char *linsel_text[] = { |
| 180 | "LINPUT1", "LINPUT2", "LINPUT3", "LINPUT1 DC", |
| 181 | }; |
| 182 | |
| 183 | static const struct soc_enum linsel_enum = |
| 184 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_L, 7, 4, linsel_text); |
| 185 | |
| 186 | static const struct snd_kcontrol_new linsel_mux = |
| 187 | SOC_DAPM_ENUM("LINSEL", linsel_enum); |
| 188 | |
| 189 | |
| 190 | static const char *rinsel_text[] = { |
| 191 | "RINPUT1", "RINPUT2", "RINPUT3", "RINPUT1 DC", |
| 192 | }; |
| 193 | |
| 194 | static const struct soc_enum rinsel_enum = |
| 195 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_R, 7, 4, rinsel_text); |
| 196 | |
| 197 | static const struct snd_kcontrol_new rinsel_mux = |
| 198 | SOC_DAPM_ENUM("RINSEL", rinsel_enum); |
| 199 | |
| 200 | static const char *bypass_text[] = { |
| 201 | "Direct", "Preamp" |
| 202 | }; |
| 203 | |
| 204 | static const struct soc_enum lbypass_enum = |
| 205 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 2, 2, bypass_text); |
| 206 | |
| 207 | static const struct snd_kcontrol_new lbypass_mux = |
| 208 | SOC_DAPM_ENUM("Left Bypass", lbypass_enum); |
| 209 | |
| 210 | |
| 211 | static const struct soc_enum rbypass_enum = |
| 212 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 3, 2, bypass_text); |
| 213 | |
| 214 | static const struct snd_kcontrol_new rbypass_mux = |
| 215 | SOC_DAPM_ENUM("Left Bypass", rbypass_enum); |
| 216 | |
| 217 | static const struct snd_soc_dapm_widget wm8737_dapm_widgets[] = { |
| 218 | SND_SOC_DAPM_INPUT("LINPUT1"), |
| 219 | SND_SOC_DAPM_INPUT("LINPUT2"), |
| 220 | SND_SOC_DAPM_INPUT("LINPUT3"), |
| 221 | SND_SOC_DAPM_INPUT("RINPUT1"), |
| 222 | SND_SOC_DAPM_INPUT("RINPUT2"), |
| 223 | SND_SOC_DAPM_INPUT("RINPUT3"), |
| 224 | SND_SOC_DAPM_INPUT("LACIN"), |
| 225 | SND_SOC_DAPM_INPUT("RACIN"), |
| 226 | |
| 227 | SND_SOC_DAPM_MUX("LINSEL", SND_SOC_NOPM, 0, 0, &linsel_mux), |
| 228 | SND_SOC_DAPM_MUX("RINSEL", SND_SOC_NOPM, 0, 0, &rinsel_mux), |
| 229 | |
| 230 | SND_SOC_DAPM_MUX("Left Preamp Mux", SND_SOC_NOPM, 0, 0, &lbypass_mux), |
| 231 | SND_SOC_DAPM_MUX("Right Preamp Mux", SND_SOC_NOPM, 0, 0, &rbypass_mux), |
| 232 | |
| 233 | SND_SOC_DAPM_PGA("PGAL", WM8737_POWER_MANAGEMENT, 5, 0, NULL, 0), |
| 234 | SND_SOC_DAPM_PGA("PGAR", WM8737_POWER_MANAGEMENT, 4, 0, NULL, 0), |
| 235 | |
| 236 | SND_SOC_DAPM_DAC("ADCL", NULL, WM8737_POWER_MANAGEMENT, 3, 0), |
| 237 | SND_SOC_DAPM_DAC("ADCR", NULL, WM8737_POWER_MANAGEMENT, 2, 0), |
| 238 | |
| 239 | SND_SOC_DAPM_AIF_OUT("AIF", "Capture", 0, WM8737_POWER_MANAGEMENT, 6, 0), |
| 240 | }; |
| 241 | |
| 242 | static const struct snd_soc_dapm_route intercon[] = { |
| 243 | { "LINSEL", "LINPUT1", "LINPUT1" }, |
| 244 | { "LINSEL", "LINPUT2", "LINPUT2" }, |
| 245 | { "LINSEL", "LINPUT3", "LINPUT3" }, |
| 246 | { "LINSEL", "LINPUT1 DC", "LINPUT1" }, |
| 247 | |
| 248 | { "RINSEL", "RINPUT1", "RINPUT1" }, |
| 249 | { "RINSEL", "RINPUT2", "RINPUT2" }, |
| 250 | { "RINSEL", "RINPUT3", "RINPUT3" }, |
| 251 | { "RINSEL", "RINPUT1 DC", "RINPUT1" }, |
| 252 | |
| 253 | { "Left Preamp Mux", "Preamp", "LINSEL" }, |
| 254 | { "Left Preamp Mux", "Direct", "LACIN" }, |
| 255 | |
| 256 | { "Right Preamp Mux", "Preamp", "RINSEL" }, |
| 257 | { "Right Preamp Mux", "Direct", "RACIN" }, |
| 258 | |
| 259 | { "PGAL", NULL, "Left Preamp Mux" }, |
| 260 | { "PGAR", NULL, "Right Preamp Mux" }, |
| 261 | |
| 262 | { "ADCL", NULL, "PGAL" }, |
| 263 | { "ADCR", NULL, "PGAR" }, |
| 264 | |
| 265 | { "AIF", NULL, "ADCL" }, |
| 266 | { "AIF", NULL, "ADCR" }, |
| 267 | }; |
| 268 | |
| 269 | static int wm8737_add_widgets(struct snd_soc_codec *codec) |
| 270 | { |
| 271 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
| 272 | |
| 273 | snd_soc_dapm_new_controls(dapm, wm8737_dapm_widgets, |
| 274 | ARRAY_SIZE(wm8737_dapm_widgets)); |
| 275 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); |
| 276 | |
| 277 | return 0; |
| 278 | } |
| 279 | |
| 280 | /* codec mclk clock divider coefficients */ |
| 281 | static const struct { |
| 282 | u32 mclk; |
| 283 | u32 rate; |
| 284 | u8 usb; |
| 285 | u8 sr; |
| 286 | } coeff_div[] = { |
| 287 | { 12288000, 8000, 0, 0x4 }, |
| 288 | { 12288000, 12000, 0, 0x8 }, |
| 289 | { 12288000, 16000, 0, 0xa }, |
| 290 | { 12288000, 24000, 0, 0x1c }, |
| 291 | { 12288000, 32000, 0, 0xc }, |
| 292 | { 12288000, 48000, 0, 0 }, |
| 293 | { 12288000, 96000, 0, 0xe }, |
| 294 | |
| 295 | { 11289600, 8000, 0, 0x14 }, |
| 296 | { 11289600, 11025, 0, 0x18 }, |
| 297 | { 11289600, 22050, 0, 0x1a }, |
| 298 | { 11289600, 44100, 0, 0x10 }, |
| 299 | { 11289600, 88200, 0, 0x1e }, |
| 300 | |
| 301 | { 18432000, 8000, 0, 0x5 }, |
| 302 | { 18432000, 12000, 0, 0x9 }, |
| 303 | { 18432000, 16000, 0, 0xb }, |
| 304 | { 18432000, 24000, 0, 0x1b }, |
| 305 | { 18432000, 32000, 0, 0xd }, |
| 306 | { 18432000, 48000, 0, 0x1 }, |
| 307 | { 18432000, 96000, 0, 0x1f }, |
| 308 | |
| 309 | { 16934400, 8000, 0, 0x15 }, |
| 310 | { 16934400, 11025, 0, 0x19 }, |
| 311 | { 16934400, 22050, 0, 0x1b }, |
| 312 | { 16934400, 44100, 0, 0x11 }, |
| 313 | { 16934400, 88200, 0, 0x1f }, |
| 314 | |
| 315 | { 12000000, 8000, 1, 0x4 }, |
| 316 | { 12000000, 11025, 1, 0x19 }, |
| 317 | { 12000000, 12000, 1, 0x8 }, |
| 318 | { 12000000, 16000, 1, 0xa }, |
| 319 | { 12000000, 22050, 1, 0x1b }, |
| 320 | { 12000000, 24000, 1, 0x1c }, |
| 321 | { 12000000, 32000, 1, 0xc }, |
| 322 | { 12000000, 44100, 1, 0x11 }, |
| 323 | { 12000000, 48000, 1, 0x0 }, |
| 324 | { 12000000, 88200, 1, 0x1f }, |
| 325 | { 12000000, 96000, 1, 0xe }, |
| 326 | }; |
| 327 | |
| 328 | static int wm8737_hw_params(struct snd_pcm_substream *substream, |
| 329 | struct snd_pcm_hw_params *params, |
| 330 | struct snd_soc_dai *dai) |
| 331 | { |
Mark Brown | e6968a1 | 2012-04-04 15:58:16 +0100 | [diff] [blame] | 332 | struct snd_soc_codec *codec = dai->codec; |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 333 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); |
| 334 | int i; |
| 335 | u16 clocking = 0; |
| 336 | u16 af = 0; |
| 337 | |
| 338 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| 339 | if (coeff_div[i].rate != params_rate(params)) |
| 340 | continue; |
| 341 | |
| 342 | if (coeff_div[i].mclk == wm8737->mclk) |
| 343 | break; |
| 344 | |
| 345 | if (coeff_div[i].mclk == wm8737->mclk * 2) { |
| 346 | clocking |= WM8737_CLKDIV2; |
| 347 | break; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | if (i == ARRAY_SIZE(coeff_div)) { |
| 352 | dev_err(codec->dev, "%dHz MCLK can't support %dHz\n", |
| 353 | wm8737->mclk, params_rate(params)); |
| 354 | return -EINVAL; |
| 355 | } |
| 356 | |
| 357 | clocking |= coeff_div[i].usb | (coeff_div[i].sr << WM8737_SR_SHIFT); |
| 358 | |
| 359 | switch (params_format(params)) { |
| 360 | case SNDRV_PCM_FORMAT_S16_LE: |
| 361 | break; |
| 362 | case SNDRV_PCM_FORMAT_S20_3LE: |
| 363 | af |= 0x8; |
| 364 | break; |
| 365 | case SNDRV_PCM_FORMAT_S24_LE: |
| 366 | af |= 0x10; |
| 367 | break; |
| 368 | case SNDRV_PCM_FORMAT_S32_LE: |
| 369 | af |= 0x18; |
| 370 | break; |
| 371 | default: |
| 372 | return -EINVAL; |
| 373 | } |
| 374 | |
| 375 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, WM8737_WL_MASK, af); |
| 376 | snd_soc_update_bits(codec, WM8737_CLOCKING, |
| 377 | WM8737_USB_MODE | WM8737_CLKDIV2 | WM8737_SR_MASK, |
| 378 | clocking); |
| 379 | |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | static int wm8737_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
| 384 | int clk_id, unsigned int freq, int dir) |
| 385 | { |
| 386 | struct snd_soc_codec *codec = codec_dai->codec; |
| 387 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); |
| 388 | int i; |
| 389 | |
| 390 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| 391 | if (freq == coeff_div[i].mclk || |
| 392 | freq == coeff_div[i].mclk * 2) { |
| 393 | wm8737->mclk = freq; |
| 394 | return 0; |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | dev_err(codec->dev, "MCLK rate %dHz not supported\n", freq); |
| 399 | |
| 400 | return -EINVAL; |
| 401 | } |
| 402 | |
| 403 | |
| 404 | static int wm8737_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| 405 | unsigned int fmt) |
| 406 | { |
| 407 | struct snd_soc_codec *codec = codec_dai->codec; |
| 408 | u16 af = 0; |
| 409 | |
| 410 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 411 | case SND_SOC_DAIFMT_CBM_CFM: |
| 412 | af |= WM8737_MS; |
| 413 | break; |
| 414 | case SND_SOC_DAIFMT_CBS_CFS: |
| 415 | break; |
| 416 | default: |
| 417 | return -EINVAL; |
| 418 | } |
| 419 | |
| 420 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 421 | case SND_SOC_DAIFMT_I2S: |
| 422 | af |= 0x2; |
| 423 | break; |
| 424 | case SND_SOC_DAIFMT_RIGHT_J: |
| 425 | break; |
| 426 | case SND_SOC_DAIFMT_LEFT_J: |
| 427 | af |= 0x1; |
| 428 | break; |
| 429 | case SND_SOC_DAIFMT_DSP_A: |
| 430 | af |= 0x3; |
| 431 | break; |
| 432 | case SND_SOC_DAIFMT_DSP_B: |
| 433 | af |= 0x13; |
| 434 | break; |
| 435 | default: |
| 436 | return -EINVAL; |
| 437 | } |
| 438 | |
| 439 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 440 | case SND_SOC_DAIFMT_NB_NF: |
| 441 | break; |
| 442 | case SND_SOC_DAIFMT_NB_IF: |
| 443 | af |= WM8737_LRP; |
| 444 | break; |
| 445 | default: |
| 446 | return -EINVAL; |
| 447 | } |
| 448 | |
| 449 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, |
| 450 | WM8737_FORMAT_MASK | WM8737_LRP | WM8737_MS, af); |
| 451 | |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | static int wm8737_set_bias_level(struct snd_soc_codec *codec, |
| 456 | enum snd_soc_bias_level level) |
| 457 | { |
| 458 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); |
| 459 | int ret; |
| 460 | |
| 461 | switch (level) { |
| 462 | case SND_SOC_BIAS_ON: |
| 463 | break; |
| 464 | |
| 465 | case SND_SOC_BIAS_PREPARE: |
| 466 | /* VMID at 2*75k */ |
| 467 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, |
| 468 | WM8737_VMIDSEL_MASK, 0); |
| 469 | break; |
| 470 | |
| 471 | case SND_SOC_BIAS_STANDBY: |
| 472 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
| 473 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), |
| 474 | wm8737->supplies); |
| 475 | if (ret != 0) { |
| 476 | dev_err(codec->dev, |
| 477 | "Failed to enable supplies: %d\n", |
| 478 | ret); |
| 479 | return ret; |
| 480 | } |
| 481 | |
| 482 | snd_soc_cache_sync(codec); |
| 483 | |
| 484 | /* Fast VMID ramp at 2*2.5k */ |
| 485 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, |
| 486 | WM8737_VMIDSEL_MASK, 0x4); |
| 487 | |
| 488 | /* Bring VMID up */ |
| 489 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, |
| 490 | WM8737_VMID_MASK | |
| 491 | WM8737_VREF_MASK, |
| 492 | WM8737_VMID_MASK | |
| 493 | WM8737_VREF_MASK); |
| 494 | |
| 495 | msleep(500); |
| 496 | } |
| 497 | |
| 498 | /* VMID at 2*300k */ |
| 499 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, |
| 500 | WM8737_VMIDSEL_MASK, 2); |
| 501 | |
| 502 | break; |
| 503 | |
| 504 | case SND_SOC_BIAS_OFF: |
| 505 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, |
| 506 | WM8737_VMID_MASK | WM8737_VREF_MASK, 0); |
| 507 | |
| 508 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), |
| 509 | wm8737->supplies); |
| 510 | break; |
| 511 | } |
| 512 | |
| 513 | codec->dapm.bias_level = level; |
| 514 | return 0; |
| 515 | } |
| 516 | |
| 517 | #define WM8737_RATES SNDRV_PCM_RATE_8000_96000 |
| 518 | |
| 519 | #define WM8737_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
| 520 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) |
| 521 | |
Lars-Peter Clausen | 85e7652 | 2011-11-23 11:40:40 +0100 | [diff] [blame] | 522 | static const struct snd_soc_dai_ops wm8737_dai_ops = { |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 523 | .hw_params = wm8737_hw_params, |
| 524 | .set_sysclk = wm8737_set_dai_sysclk, |
| 525 | .set_fmt = wm8737_set_dai_fmt, |
| 526 | }; |
| 527 | |
| 528 | static struct snd_soc_dai_driver wm8737_dai = { |
| 529 | .name = "wm8737", |
| 530 | .capture = { |
| 531 | .stream_name = "Capture", |
| 532 | .channels_min = 2, /* Mono modes not yet supported */ |
| 533 | .channels_max = 2, |
| 534 | .rates = WM8737_RATES, |
| 535 | .formats = WM8737_FORMATS, |
| 536 | }, |
| 537 | .ops = &wm8737_dai_ops, |
| 538 | }; |
| 539 | |
| 540 | #ifdef CONFIG_PM |
Lars-Peter Clausen | 84b315e | 2011-12-02 10:18:28 +0100 | [diff] [blame] | 541 | static int wm8737_suspend(struct snd_soc_codec *codec) |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 542 | { |
| 543 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| 544 | return 0; |
| 545 | } |
| 546 | |
| 547 | static int wm8737_resume(struct snd_soc_codec *codec) |
| 548 | { |
| 549 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| 550 | return 0; |
| 551 | } |
| 552 | #else |
| 553 | #define wm8737_suspend NULL |
| 554 | #define wm8737_resume NULL |
| 555 | #endif |
| 556 | |
| 557 | static int wm8737_probe(struct snd_soc_codec *codec) |
| 558 | { |
| 559 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); |
| 560 | int ret, i; |
| 561 | |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 562 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8737->control_type); |
| 563 | if (ret != 0) { |
| 564 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); |
| 565 | return ret; |
| 566 | } |
| 567 | |
| 568 | for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) |
| 569 | wm8737->supplies[i].supply = wm8737_supply_names[i]; |
| 570 | |
| 571 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8737->supplies), |
| 572 | wm8737->supplies); |
| 573 | if (ret != 0) { |
| 574 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); |
| 575 | return ret; |
| 576 | } |
| 577 | |
| 578 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), |
| 579 | wm8737->supplies); |
| 580 | if (ret != 0) { |
| 581 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); |
| 582 | goto err_get; |
| 583 | } |
| 584 | |
| 585 | ret = wm8737_reset(codec); |
| 586 | if (ret < 0) { |
| 587 | dev_err(codec->dev, "Failed to issue reset\n"); |
| 588 | goto err_enable; |
| 589 | } |
| 590 | |
| 591 | snd_soc_update_bits(codec, WM8737_LEFT_PGA_VOLUME, WM8737_LVU, |
| 592 | WM8737_LVU); |
| 593 | snd_soc_update_bits(codec, WM8737_RIGHT_PGA_VOLUME, WM8737_RVU, |
| 594 | WM8737_RVU); |
| 595 | |
| 596 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| 597 | |
| 598 | /* Bias level configuration will have done an extra enable */ |
| 599 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); |
| 600 | |
Liam Girdwood | 022658b | 2012-02-03 17:43:09 +0000 | [diff] [blame] | 601 | snd_soc_add_codec_controls(codec, wm8737_snd_controls, |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 602 | ARRAY_SIZE(wm8737_snd_controls)); |
| 603 | wm8737_add_widgets(codec); |
| 604 | |
| 605 | return 0; |
| 606 | |
| 607 | err_enable: |
| 608 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); |
| 609 | err_get: |
| 610 | regulator_bulk_free(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); |
| 611 | |
| 612 | return ret; |
| 613 | } |
| 614 | |
| 615 | static int wm8737_remove(struct snd_soc_codec *codec) |
| 616 | { |
| 617 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); |
| 618 | |
| 619 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| 620 | regulator_bulk_free(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); |
| 621 | return 0; |
| 622 | } |
| 623 | |
| 624 | static struct snd_soc_codec_driver soc_codec_dev_wm8737 = { |
| 625 | .probe = wm8737_probe, |
| 626 | .remove = wm8737_remove, |
| 627 | .suspend = wm8737_suspend, |
| 628 | .resume = wm8737_resume, |
| 629 | .set_bias_level = wm8737_set_bias_level, |
| 630 | |
| 631 | .reg_cache_size = WM8737_REGISTER_COUNT - 1, /* Skip reset */ |
| 632 | .reg_word_size = sizeof(u16), |
| 633 | .reg_cache_default = wm8737_reg, |
| 634 | }; |
| 635 | |
Mark Brown | 53a5a83 | 2011-08-03 16:53:22 +0900 | [diff] [blame] | 636 | static const struct of_device_id wm8737_of_match[] = { |
| 637 | { .compatible = "wlf,wm8737", }, |
| 638 | { } |
| 639 | }; |
| 640 | |
| 641 | MODULE_DEVICE_TABLE(of, wm8737_of_match); |
| 642 | |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 643 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 644 | static __devinit int wm8737_i2c_probe(struct i2c_client *i2c, |
| 645 | const struct i2c_device_id *id) |
| 646 | { |
| 647 | struct wm8737_priv *wm8737; |
| 648 | int ret; |
| 649 | |
| 650 | wm8737 = kzalloc(sizeof(struct wm8737_priv), GFP_KERNEL); |
| 651 | if (wm8737 == NULL) |
| 652 | return -ENOMEM; |
| 653 | |
| 654 | i2c_set_clientdata(i2c, wm8737); |
| 655 | wm8737->control_type = SND_SOC_I2C; |
| 656 | |
| 657 | ret = snd_soc_register_codec(&i2c->dev, |
| 658 | &soc_codec_dev_wm8737, &wm8737_dai, 1); |
| 659 | if (ret < 0) |
| 660 | kfree(wm8737); |
| 661 | return ret; |
| 662 | |
| 663 | } |
| 664 | |
| 665 | static __devexit int wm8737_i2c_remove(struct i2c_client *client) |
| 666 | { |
| 667 | snd_soc_unregister_codec(&client->dev); |
| 668 | kfree(i2c_get_clientdata(client)); |
| 669 | return 0; |
| 670 | } |
| 671 | |
| 672 | static const struct i2c_device_id wm8737_i2c_id[] = { |
| 673 | { "wm8737", 0 }, |
| 674 | { } |
| 675 | }; |
| 676 | MODULE_DEVICE_TABLE(i2c, wm8737_i2c_id); |
| 677 | |
| 678 | static struct i2c_driver wm8737_i2c_driver = { |
| 679 | .driver = { |
| 680 | .name = "wm8737", |
| 681 | .owner = THIS_MODULE, |
Mark Brown | 53a5a83 | 2011-08-03 16:53:22 +0900 | [diff] [blame] | 682 | .of_match_table = wm8737_of_match, |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 683 | }, |
| 684 | .probe = wm8737_i2c_probe, |
| 685 | .remove = __devexit_p(wm8737_i2c_remove), |
| 686 | .id_table = wm8737_i2c_id, |
| 687 | }; |
| 688 | #endif |
| 689 | |
| 690 | #if defined(CONFIG_SPI_MASTER) |
| 691 | static int __devinit wm8737_spi_probe(struct spi_device *spi) |
| 692 | { |
| 693 | struct wm8737_priv *wm8737; |
| 694 | int ret; |
| 695 | |
| 696 | wm8737 = kzalloc(sizeof(struct wm8737_priv), GFP_KERNEL); |
| 697 | if (wm8737 == NULL) |
| 698 | return -ENOMEM; |
| 699 | |
| 700 | wm8737->control_type = SND_SOC_SPI; |
| 701 | spi_set_drvdata(spi, wm8737); |
| 702 | |
| 703 | ret = snd_soc_register_codec(&spi->dev, |
| 704 | &soc_codec_dev_wm8737, &wm8737_dai, 1); |
| 705 | if (ret < 0) |
| 706 | kfree(wm8737); |
| 707 | return ret; |
| 708 | } |
| 709 | |
| 710 | static int __devexit wm8737_spi_remove(struct spi_device *spi) |
| 711 | { |
| 712 | snd_soc_unregister_codec(&spi->dev); |
| 713 | kfree(spi_get_drvdata(spi)); |
| 714 | return 0; |
| 715 | } |
| 716 | |
| 717 | static struct spi_driver wm8737_spi_driver = { |
| 718 | .driver = { |
| 719 | .name = "wm8737", |
| 720 | .owner = THIS_MODULE, |
Mark Brown | 53a5a83 | 2011-08-03 16:53:22 +0900 | [diff] [blame] | 721 | .of_match_table = wm8737_of_match, |
Mark Brown | 2a9ae13 | 2010-11-23 19:31:18 +0000 | [diff] [blame] | 722 | }, |
| 723 | .probe = wm8737_spi_probe, |
| 724 | .remove = __devexit_p(wm8737_spi_remove), |
| 725 | }; |
| 726 | #endif /* CONFIG_SPI_MASTER */ |
| 727 | |
| 728 | static int __init wm8737_modinit(void) |
| 729 | { |
| 730 | int ret; |
| 731 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 732 | ret = i2c_add_driver(&wm8737_i2c_driver); |
| 733 | if (ret != 0) { |
| 734 | printk(KERN_ERR "Failed to register WM8737 I2C driver: %d\n", |
| 735 | ret); |
| 736 | } |
| 737 | #endif |
| 738 | #if defined(CONFIG_SPI_MASTER) |
| 739 | ret = spi_register_driver(&wm8737_spi_driver); |
| 740 | if (ret != 0) { |
| 741 | printk(KERN_ERR "Failed to register WM8737 SPI driver: %d\n", |
| 742 | ret); |
| 743 | } |
| 744 | #endif |
| 745 | return 0; |
| 746 | } |
| 747 | module_init(wm8737_modinit); |
| 748 | |
| 749 | static void __exit wm8737_exit(void) |
| 750 | { |
| 751 | #if defined(CONFIG_SPI_MASTER) |
| 752 | spi_unregister_driver(&wm8737_spi_driver); |
| 753 | #endif |
| 754 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 755 | i2c_del_driver(&wm8737_i2c_driver); |
| 756 | #endif |
| 757 | } |
| 758 | module_exit(wm8737_exit); |
| 759 | |
| 760 | MODULE_DESCRIPTION("ASoC WM8737 driver"); |
| 761 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
| 762 | MODULE_LICENSE("GPL"); |