1 /* 2 * wm8753.c -- WM8753 ALSA Soc Audio driver 3 * 4 * Copyright 2003 Wolfson Microelectronics PLC. 5 * Author: Liam Girdwood <lrg@slimlogic.co.uk> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 * 12 * Notes: 13 * The WM8753 is a low power, high quality stereo codec with integrated PCM 14 * codec designed for portable digital telephony applications. 15 * 16 * Dual DAI:- 17 * 18 * This driver support 2 DAI PCM's. This makes the default PCM available for 19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for 20 * voice. 21 * 22 * Please note that the voice PCM can be connected directly to a Bluetooth 23 * codec or GSM modem and thus cannot be read or written to, although it is 24 * available to be configured with snd_hw_params(), etc and kcontrols in the 25 * normal alsa manner. 26 * 27 * Fast DAI switching:- 28 * 29 * The driver can now fast switch between the DAI configurations via a 30 * an alsa kcontrol. This allows the PCM to remain open. 31 * 32 */ 33 34 #include <linux/module.h> 35 #include <linux/moduleparam.h> 36 #include <linux/kernel.h> 37 #include <linux/init.h> 38 #include <linux/delay.h> 39 #include <linux/pm.h> 40 #include <linux/i2c.h> 41 #include <linux/platform_device.h> 42 #include <linux/spi/spi.h> 43 #include <linux/slab.h> 44 #include <sound/core.h> 45 #include <sound/pcm.h> 46 #include <sound/pcm_params.h> 47 #include <sound/soc.h> 48 #include <sound/initval.h> 49 #include <sound/tlv.h> 50 #include <asm/div64.h> 51 52 #include "wm8753.h" 53 54 static int caps_charge = 2000; 55 module_param(caps_charge, int, 0); 56 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)"); 57 58 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec, 59 unsigned int fmt); 60 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec, 61 unsigned int fmt); 62 63 /* 64 * wm8753 register cache 65 * We can't read the WM8753 register space when we 66 * are using 2 wire for device control, so we cache them instead. 67 */ 68 static const u16 wm8753_reg[] = { 69 0x0000, 0x0008, 0x0000, 0x000a, 70 0x000a, 0x0033, 0x0000, 0x0007, 71 0x00ff, 0x00ff, 0x000f, 0x000f, 72 0x007b, 0x0000, 0x0032, 0x0000, 73 0x00c3, 0x00c3, 0x00c0, 0x0000, 74 0x0000, 0x0000, 0x0000, 0x0000, 75 0x0000, 0x0000, 0x0000, 0x0000, 76 0x0000, 0x0000, 0x0000, 0x0000, 77 0x0055, 0x0005, 0x0050, 0x0055, 78 0x0050, 0x0055, 0x0050, 0x0055, 79 0x0079, 0x0079, 0x0079, 0x0079, 80 0x0079, 0x0000, 0x0000, 0x0000, 81 0x0000, 0x0097, 0x0097, 0x0000, 82 0x0004, 0x0000, 0x0083, 0x0024, 83 0x01ba, 0x0000, 0x0083, 0x0024, 84 0x01ba, 0x0000, 0x0000, 0x0000 85 }; 86 87 /* codec private data */ 88 struct wm8753_priv { 89 enum snd_soc_control_type control_type; 90 unsigned int sysclk; 91 unsigned int pcmclk; 92 93 unsigned int voice_fmt; 94 unsigned int hifi_fmt; 95 96 int dai_func; 97 }; 98 99 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0) 100 101 /* 102 * WM8753 Controls 103 */ 104 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"}; 105 static const char *wm8753_base_filter[] = 106 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz", 107 "100Hz @ 8kHz", "200Hz @ 8kHz"}; 108 static const char *wm8753_treble[] = {"8kHz", "4kHz"}; 109 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"}; 110 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"}; 111 static const char *wm8753_3d_func[] = {"Capture", "Playback"}; 112 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"}; 113 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"}; 114 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"}; 115 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"}; 116 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"}; 117 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2", 118 "Line 1", "Line 2"}; 119 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"}; 120 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"}; 121 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"}; 122 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"}; 123 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2", 124 "Right PGA"}; 125 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right", 126 "Left + Right"}; 127 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"}; 128 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"}; 129 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"}; 130 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"}; 131 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left", 132 "Analogue Mix Right", "Digital Mono Mix"}; 133 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k", 134 "82Hz @ 8kHz", "170Hz @ 8kHz"}; 135 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"}; 136 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"}; 137 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"}; 138 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC", 139 "Channel Swap"}; 140 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"}; 141 142 static const struct soc_enum wm8753_enum[] = { 143 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base), 144 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter), 145 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble), 146 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func), 147 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type), 148 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func), 149 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc), 150 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc), 151 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp), 152 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix), 153 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase), 154 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix), 155 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux), 156 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux), 157 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux), 158 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel), 159 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux), 160 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src), 161 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3), 162 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4), 163 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel), 164 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel), 165 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc), 166 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp), 167 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter), 168 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel), 169 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode), 170 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel), 171 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase), 172 }; 173 174 175 static int wm8753_get_dai(struct snd_kcontrol *kcontrol, 176 struct snd_ctl_elem_value *ucontrol) 177 { 178 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 179 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 180 181 ucontrol->value.integer.value[0] = wm8753->dai_func; 182 return 0; 183 } 184 185 static int wm8753_set_dai(struct snd_kcontrol *kcontrol, 186 struct snd_ctl_elem_value *ucontrol) 187 { 188 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 189 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 190 u16 ioctl; 191 192 if (codec->active) 193 return -EBUSY; 194 195 ioctl = snd_soc_read(codec, WM8753_IOCTL); 196 197 wm8753->dai_func = ucontrol->value.integer.value[0]; 198 199 if (((ioctl >> 2) & 0x3) == wm8753->dai_func) 200 return 1; 201 202 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2); 203 snd_soc_write(codec, WM8753_IOCTL, ioctl); 204 205 206 wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt); 207 wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt); 208 209 return 1; 210 } 211 212 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0); 213 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0); 214 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); 215 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); 216 static const unsigned int out_tlv[] = { 217 TLV_DB_RANGE_HEAD(2), 218 /* 0000000 - 0101111 = "Analogue mute" */ 219 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0), 220 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0), 221 }; 222 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0); 223 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0); 224 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); 225 226 static const struct snd_kcontrol_new wm8753_snd_controls[] = { 227 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv), 228 229 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0, 230 adc_tlv), 231 232 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V, 233 0, 127, 0, out_tlv), 234 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0, 235 127, 0, out_tlv), 236 237 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv), 238 239 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7, 240 1, mix_tlv), 241 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4, 242 7, 1, mix_tlv), 243 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7, 244 1, voice_mix_tlv), 245 246 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7, 247 1, 0), 248 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7, 249 1, 0), 250 251 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv), 252 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1, 253 mix_tlv), 254 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1, 255 voice_mix_tlv), 256 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0), 257 258 SOC_ENUM("Bass Boost", wm8753_enum[0]), 259 SOC_ENUM("Bass Filter", wm8753_enum[1]), 260 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1), 261 262 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1), 263 SOC_ENUM("Treble Cut-off", wm8753_enum[2]), 264 265 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1, 266 rec_mix_tlv), 267 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1, 268 rec_mix_tlv), 269 270 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0, 271 pga_tlv), 272 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0), 273 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1), 274 275 SOC_ENUM("Capture Filter Select", wm8753_enum[23]), 276 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]), 277 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1), 278 279 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0), 280 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0), 281 SOC_ENUM("ALC Capture Function", wm8753_enum[3]), 282 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0), 283 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1), 284 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1), 285 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0), 286 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0), 287 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]), 288 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0), 289 290 SOC_ENUM("3D Function", wm8753_enum[5]), 291 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]), 292 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]), 293 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0), 294 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0), 295 296 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0), 297 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0), 298 299 SOC_ENUM("De-emphasis", wm8753_enum[8]), 300 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]), 301 SOC_ENUM("Playback Phase", wm8753_enum[10]), 302 303 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv), 304 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv), 305 306 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai), 307 308 SOC_ENUM("ADC Data Select", wm8753_enum[27]), 309 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]), 310 }; 311 312 /* 313 * _DAPM_ Controls 314 */ 315 316 /* Left Mixer */ 317 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = { 318 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0), 319 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0), 320 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0), 321 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0), 322 }; 323 324 /* Right mixer */ 325 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = { 326 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0), 327 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0), 328 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0), 329 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0), 330 }; 331 332 /* Mono mixer */ 333 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = { 334 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0), 335 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0), 336 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0), 337 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0), 338 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0), 339 }; 340 341 /* Mono 2 Mux */ 342 static const struct snd_kcontrol_new wm8753_mono2_controls = 343 SOC_DAPM_ENUM("Route", wm8753_enum[17]); 344 345 /* Out 3 Mux */ 346 static const struct snd_kcontrol_new wm8753_out3_controls = 347 SOC_DAPM_ENUM("Route", wm8753_enum[18]); 348 349 /* Out 4 Mux */ 350 static const struct snd_kcontrol_new wm8753_out4_controls = 351 SOC_DAPM_ENUM("Route", wm8753_enum[19]); 352 353 /* ADC Mono Mix */ 354 static const struct snd_kcontrol_new wm8753_adc_mono_controls = 355 SOC_DAPM_ENUM("Route", wm8753_enum[22]); 356 357 /* Record mixer */ 358 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = { 359 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0), 360 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0), 361 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0), 362 }; 363 364 /* Left ADC mux */ 365 static const struct snd_kcontrol_new wm8753_adc_left_controls = 366 SOC_DAPM_ENUM("Route", wm8753_enum[21]); 367 368 /* Right ADC mux */ 369 static const struct snd_kcontrol_new wm8753_adc_right_controls = 370 SOC_DAPM_ENUM("Route", wm8753_enum[20]); 371 372 /* MIC mux */ 373 static const struct snd_kcontrol_new wm8753_mic_mux_controls = 374 SOC_DAPM_ENUM("Route", wm8753_enum[16]); 375 376 /* ALC mixer */ 377 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = { 378 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0), 379 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0), 380 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0), 381 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0), 382 }; 383 384 /* Left Line mux */ 385 static const struct snd_kcontrol_new wm8753_line_left_controls = 386 SOC_DAPM_ENUM("Route", wm8753_enum[14]); 387 388 /* Right Line mux */ 389 static const struct snd_kcontrol_new wm8753_line_right_controls = 390 SOC_DAPM_ENUM("Route", wm8753_enum[13]); 391 392 /* Mono Line mux */ 393 static const struct snd_kcontrol_new wm8753_line_mono_controls = 394 SOC_DAPM_ENUM("Route", wm8753_enum[12]); 395 396 /* Line mux and mixer */ 397 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls = 398 SOC_DAPM_ENUM("Route", wm8753_enum[11]); 399 400 /* Rx mux and mixer */ 401 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls = 402 SOC_DAPM_ENUM("Route", wm8753_enum[15]); 403 404 /* Mic Selector Mux */ 405 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls = 406 SOC_DAPM_ENUM("Route", wm8753_enum[25]); 407 408 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { 409 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0), 410 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0, 411 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)), 412 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0), 413 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0), 414 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0), 415 SND_SOC_DAPM_OUTPUT("LOUT1"), 416 SND_SOC_DAPM_OUTPUT("LOUT2"), 417 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0, 418 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)), 419 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0), 420 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0), 421 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0), 422 SND_SOC_DAPM_OUTPUT("ROUT1"), 423 SND_SOC_DAPM_OUTPUT("ROUT2"), 424 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0, 425 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)), 426 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0), 427 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0), 428 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0), 429 SND_SOC_DAPM_OUTPUT("MONO1"), 430 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls), 431 SND_SOC_DAPM_OUTPUT("MONO2"), 432 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0), 433 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls), 434 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0), 435 SND_SOC_DAPM_OUTPUT("OUT3"), 436 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls), 437 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0), 438 SND_SOC_DAPM_OUTPUT("OUT4"), 439 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0, 440 &wm8753_record_mixer_controls[0], 441 ARRAY_SIZE(wm8753_record_mixer_controls)), 442 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0), 443 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0), 444 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0, 445 &wm8753_adc_mono_controls), 446 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0, 447 &wm8753_adc_mono_controls), 448 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0, 449 &wm8753_adc_left_controls), 450 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0, 451 &wm8753_adc_right_controls), 452 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0, 453 &wm8753_mic_mux_controls), 454 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0), 455 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0), 456 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0, 457 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)), 458 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0, 459 &wm8753_line_left_controls), 460 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0, 461 &wm8753_line_right_controls), 462 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0, 463 &wm8753_line_mono_controls), 464 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0, 465 &wm8753_line_mux_mix_controls), 466 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0, 467 &wm8753_rx_mux_mix_controls), 468 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0), 469 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0), 470 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0, 471 &wm8753_mic_sel_mux_controls), 472 SND_SOC_DAPM_INPUT("LINE1"), 473 SND_SOC_DAPM_INPUT("LINE2"), 474 SND_SOC_DAPM_INPUT("RXP"), 475 SND_SOC_DAPM_INPUT("RXN"), 476 SND_SOC_DAPM_INPUT("ACIN"), 477 SND_SOC_DAPM_OUTPUT("ACOP"), 478 SND_SOC_DAPM_INPUT("MIC1N"), 479 SND_SOC_DAPM_INPUT("MIC1"), 480 SND_SOC_DAPM_INPUT("MIC2N"), 481 SND_SOC_DAPM_INPUT("MIC2"), 482 SND_SOC_DAPM_VMID("VREF"), 483 }; 484 485 static const struct snd_soc_dapm_route audio_map[] = { 486 /* left mixer */ 487 {"Left Mixer", "Left Playback Switch", "Left DAC"}, 488 {"Left Mixer", "Voice Playback Switch", "Voice DAC"}, 489 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, 490 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"}, 491 492 /* right mixer */ 493 {"Right Mixer", "Right Playback Switch", "Right DAC"}, 494 {"Right Mixer", "Voice Playback Switch", "Voice DAC"}, 495 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, 496 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"}, 497 498 /* mono mixer */ 499 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"}, 500 {"Mono Mixer", "Left Playback Switch", "Left DAC"}, 501 {"Mono Mixer", "Right Playback Switch", "Right DAC"}, 502 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, 503 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"}, 504 505 /* left out */ 506 {"Left Out 1", NULL, "Left Mixer"}, 507 {"Left Out 2", NULL, "Left Mixer"}, 508 {"LOUT1", NULL, "Left Out 1"}, 509 {"LOUT2", NULL, "Left Out 2"}, 510 511 /* right out */ 512 {"Right Out 1", NULL, "Right Mixer"}, 513 {"Right Out 2", NULL, "Right Mixer"}, 514 {"ROUT1", NULL, "Right Out 1"}, 515 {"ROUT2", NULL, "Right Out 2"}, 516 517 /* mono 1 out */ 518 {"Mono Out 1", NULL, "Mono Mixer"}, 519 {"MONO1", NULL, "Mono Out 1"}, 520 521 /* mono 2 out */ 522 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"}, 523 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"}, 524 {"Mono 2 Mux", "Left", "Left Mixer"}, 525 {"Mono 2 Mux", "Right", "Right Mixer"}, 526 {"Mono Out 2", NULL, "Mono 2 Mux"}, 527 {"MONO2", NULL, "Mono Out 2"}, 528 529 /* out 3 */ 530 {"Out3 Left + Right", NULL, "Left Mixer"}, 531 {"Out3 Left + Right", NULL, "Right Mixer"}, 532 {"Out3 Mux", "VREF", "VREF"}, 533 {"Out3 Mux", "Left + Right", "Out3 Left + Right"}, 534 {"Out3 Mux", "ROUT2", "ROUT2"}, 535 {"Out 3", NULL, "Out3 Mux"}, 536 {"OUT3", NULL, "Out 3"}, 537 538 /* out 4 */ 539 {"Out4 Mux", "VREF", "VREF"}, 540 {"Out4 Mux", "Capture ST", "Playback Mixer"}, 541 {"Out4 Mux", "LOUT2", "LOUT2"}, 542 {"Out 4", NULL, "Out4 Mux"}, 543 {"OUT4", NULL, "Out 4"}, 544 545 /* record mixer */ 546 {"Playback Mixer", "Left Capture Switch", "Left Mixer"}, 547 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"}, 548 {"Playback Mixer", "Right Capture Switch", "Right Mixer"}, 549 550 /* Mic/SideTone Mux */ 551 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"}, 552 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"}, 553 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"}, 554 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"}, 555 556 /* Capture Left Mux */ 557 {"Capture Left Mux", "PGA", "Left Capture Volume"}, 558 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"}, 559 {"Capture Left Mux", "Line", "LINE1"}, 560 561 /* Capture Right Mux */ 562 {"Capture Right Mux", "PGA", "Right Capture Volume"}, 563 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"}, 564 {"Capture Right Mux", "Sidetone", "Playback Mixer"}, 565 566 /* Mono Capture mixer-mux */ 567 {"Capture Right Mixer", "Stereo", "Capture Right Mux"}, 568 {"Capture Left Mixer", "Stereo", "Capture Left Mux"}, 569 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"}, 570 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"}, 571 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"}, 572 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"}, 573 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"}, 574 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"}, 575 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"}, 576 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"}, 577 578 /* ADC */ 579 {"Left ADC", NULL, "Capture Left Mixer"}, 580 {"Right ADC", NULL, "Capture Right Mixer"}, 581 582 /* Left Capture Volume */ 583 {"Left Capture Volume", NULL, "ACIN"}, 584 585 /* Right Capture Volume */ 586 {"Right Capture Volume", NULL, "Mic 2 Volume"}, 587 588 /* ALC Mixer */ 589 {"ALC Mixer", "Line Capture Switch", "Line Mixer"}, 590 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"}, 591 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"}, 592 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"}, 593 594 /* Line Left Mux */ 595 {"Line Left Mux", "Line 1", "LINE1"}, 596 {"Line Left Mux", "Rx Mix", "Rx Mixer"}, 597 598 /* Line Right Mux */ 599 {"Line Right Mux", "Line 2", "LINE2"}, 600 {"Line Right Mux", "Rx Mix", "Rx Mixer"}, 601 602 /* Line Mono Mux */ 603 {"Line Mono Mux", "Line Mix", "Line Mixer"}, 604 {"Line Mono Mux", "Rx Mix", "Rx Mixer"}, 605 606 /* Line Mixer/Mux */ 607 {"Line Mixer", "Line 1 + 2", "LINE1"}, 608 {"Line Mixer", "Line 1 - 2", "LINE1"}, 609 {"Line Mixer", "Line 1 + 2", "LINE2"}, 610 {"Line Mixer", "Line 1 - 2", "LINE2"}, 611 {"Line Mixer", "Line 1", "LINE1"}, 612 {"Line Mixer", "Line 2", "LINE2"}, 613 614 /* Rx Mixer/Mux */ 615 {"Rx Mixer", "RXP - RXN", "RXP"}, 616 {"Rx Mixer", "RXP + RXN", "RXP"}, 617 {"Rx Mixer", "RXP - RXN", "RXN"}, 618 {"Rx Mixer", "RXP + RXN", "RXN"}, 619 {"Rx Mixer", "RXP", "RXP"}, 620 {"Rx Mixer", "RXN", "RXN"}, 621 622 /* Mic 1 Volume */ 623 {"Mic 1 Volume", NULL, "MIC1N"}, 624 {"Mic 1 Volume", NULL, "Mic Selection Mux"}, 625 626 /* Mic 2 Volume */ 627 {"Mic 2 Volume", NULL, "MIC2N"}, 628 {"Mic 2 Volume", NULL, "MIC2"}, 629 630 /* Mic Selector Mux */ 631 {"Mic Selection Mux", "Mic 1", "MIC1"}, 632 {"Mic Selection Mux", "Mic 2", "MIC2N"}, 633 {"Mic Selection Mux", "Mic 3", "MIC2"}, 634 635 /* ACOP */ 636 {"ACOP", NULL, "ALC Mixer"}, 637 }; 638 639 static int wm8753_add_widgets(struct snd_soc_codec *codec) 640 { 641 struct snd_soc_dapm_context *dapm = &codec->dapm; 642 643 snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets, 644 ARRAY_SIZE(wm8753_dapm_widgets)); 645 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); 646 647 return 0; 648 } 649 650 /* PLL divisors */ 651 struct _pll_div { 652 u32 div2:1; 653 u32 n:4; 654 u32 k:24; 655 }; 656 657 /* The size in bits of the pll divide multiplied by 10 658 * to allow rounding later */ 659 #define FIXED_PLL_SIZE ((1 << 22) * 10) 660 661 static void pll_factors(struct _pll_div *pll_div, unsigned int target, 662 unsigned int source) 663 { 664 u64 Kpart; 665 unsigned int K, Ndiv, Nmod; 666 667 Ndiv = target / source; 668 if (Ndiv < 6) { 669 source >>= 1; 670 pll_div->div2 = 1; 671 Ndiv = target / source; 672 } else 673 pll_div->div2 = 0; 674 675 if ((Ndiv < 6) || (Ndiv > 12)) 676 printk(KERN_WARNING 677 "wm8753: unsupported N = %u\n", Ndiv); 678 679 pll_div->n = Ndiv; 680 Nmod = target % source; 681 Kpart = FIXED_PLL_SIZE * (long long)Nmod; 682 683 do_div(Kpart, source); 684 685 K = Kpart & 0xFFFFFFFF; 686 687 /* Check if we need to round */ 688 if ((K % 10) >= 5) 689 K += 5; 690 691 /* Move down to proper range now rounding is done */ 692 K /= 10; 693 694 pll_div->k = K; 695 } 696 697 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, 698 int source, unsigned int freq_in, unsigned int freq_out) 699 { 700 u16 reg, enable; 701 int offset; 702 struct snd_soc_codec *codec = codec_dai->codec; 703 704 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2) 705 return -ENODEV; 706 707 if (pll_id == WM8753_PLL1) { 708 offset = 0; 709 enable = 0x10; 710 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef; 711 } else { 712 offset = 4; 713 enable = 0x8; 714 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7; 715 } 716 717 if (!freq_in || !freq_out) { 718 /* disable PLL */ 719 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026); 720 snd_soc_write(codec, WM8753_CLOCK, reg); 721 return 0; 722 } else { 723 u16 value = 0; 724 struct _pll_div pll_div; 725 726 pll_factors(&pll_div, freq_out * 8, freq_in); 727 728 /* set up N and K PLL divisor ratios */ 729 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */ 730 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18); 731 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value); 732 733 /* bits 8:0 = PLL_K[17:9] */ 734 value = (pll_div.k & 0x03fe00) >> 9; 735 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value); 736 737 /* bits 8:0 = PLL_K[8:0] */ 738 value = pll_div.k & 0x0001ff; 739 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value); 740 741 /* set PLL as input and enable */ 742 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 | 743 (pll_div.div2 << 3)); 744 snd_soc_write(codec, WM8753_CLOCK, reg | enable); 745 } 746 return 0; 747 } 748 749 struct _coeff_div { 750 u32 mclk; 751 u32 rate; 752 u8 sr:5; 753 u8 usb:1; 754 }; 755 756 /* codec hifi mclk (after PLL) clock divider coefficients */ 757 static const struct _coeff_div coeff_div[] = { 758 /* 8k */ 759 {12288000, 8000, 0x6, 0x0}, 760 {11289600, 8000, 0x16, 0x0}, 761 {18432000, 8000, 0x7, 0x0}, 762 {16934400, 8000, 0x17, 0x0}, 763 {12000000, 8000, 0x6, 0x1}, 764 765 /* 11.025k */ 766 {11289600, 11025, 0x18, 0x0}, 767 {16934400, 11025, 0x19, 0x0}, 768 {12000000, 11025, 0x19, 0x1}, 769 770 /* 16k */ 771 {12288000, 16000, 0xa, 0x0}, 772 {18432000, 16000, 0xb, 0x0}, 773 {12000000, 16000, 0xa, 0x1}, 774 775 /* 22.05k */ 776 {11289600, 22050, 0x1a, 0x0}, 777 {16934400, 22050, 0x1b, 0x0}, 778 {12000000, 22050, 0x1b, 0x1}, 779 780 /* 32k */ 781 {12288000, 32000, 0xc, 0x0}, 782 {18432000, 32000, 0xd, 0x0}, 783 {12000000, 32000, 0xa, 0x1}, 784 785 /* 44.1k */ 786 {11289600, 44100, 0x10, 0x0}, 787 {16934400, 44100, 0x11, 0x0}, 788 {12000000, 44100, 0x11, 0x1}, 789 790 /* 48k */ 791 {12288000, 48000, 0x0, 0x0}, 792 {18432000, 48000, 0x1, 0x0}, 793 {12000000, 48000, 0x0, 0x1}, 794 795 /* 88.2k */ 796 {11289600, 88200, 0x1e, 0x0}, 797 {16934400, 88200, 0x1f, 0x0}, 798 {12000000, 88200, 0x1f, 0x1}, 799 800 /* 96k */ 801 {12288000, 96000, 0xe, 0x0}, 802 {18432000, 96000, 0xf, 0x0}, 803 {12000000, 96000, 0xe, 0x1}, 804 }; 805 806 static int get_coeff(int mclk, int rate) 807 { 808 int i; 809 810 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { 811 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) 812 return i; 813 } 814 return -EINVAL; 815 } 816 817 /* 818 * Clock after PLL and dividers 819 */ 820 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai, 821 int clk_id, unsigned int freq, int dir) 822 { 823 struct snd_soc_codec *codec = codec_dai->codec; 824 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 825 826 switch (freq) { 827 case 11289600: 828 case 12000000: 829 case 12288000: 830 case 16934400: 831 case 18432000: 832 if (clk_id == WM8753_MCLK) { 833 wm8753->sysclk = freq; 834 return 0; 835 } else if (clk_id == WM8753_PCMCLK) { 836 wm8753->pcmclk = freq; 837 return 0; 838 } 839 break; 840 } 841 return -EINVAL; 842 } 843 844 /* 845 * Set's ADC and Voice DAC format. 846 */ 847 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec, 848 unsigned int fmt) 849 { 850 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec; 851 852 /* interface format */ 853 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 854 case SND_SOC_DAIFMT_I2S: 855 voice |= 0x0002; 856 break; 857 case SND_SOC_DAIFMT_RIGHT_J: 858 break; 859 case SND_SOC_DAIFMT_LEFT_J: 860 voice |= 0x0001; 861 break; 862 case SND_SOC_DAIFMT_DSP_A: 863 voice |= 0x0003; 864 break; 865 case SND_SOC_DAIFMT_DSP_B: 866 voice |= 0x0013; 867 break; 868 default: 869 return -EINVAL; 870 } 871 872 snd_soc_write(codec, WM8753_PCM, voice); 873 return 0; 874 } 875 876 /* 877 * Set PCM DAI bit size and sample rate. 878 */ 879 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream, 880 struct snd_pcm_hw_params *params, 881 struct snd_soc_dai *dai) 882 { 883 struct snd_soc_pcm_runtime *rtd = substream->private_data; 884 struct snd_soc_codec *codec = rtd->codec; 885 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 886 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3; 887 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f; 888 889 /* bit size */ 890 switch (params_format(params)) { 891 case SNDRV_PCM_FORMAT_S16_LE: 892 break; 893 case SNDRV_PCM_FORMAT_S20_3LE: 894 voice |= 0x0004; 895 break; 896 case SNDRV_PCM_FORMAT_S24_LE: 897 voice |= 0x0008; 898 break; 899 case SNDRV_PCM_FORMAT_S32_LE: 900 voice |= 0x000c; 901 break; 902 } 903 904 /* sample rate */ 905 if (params_rate(params) * 384 == wm8753->pcmclk) 906 srate |= 0x80; 907 snd_soc_write(codec, WM8753_SRATE1, srate); 908 909 snd_soc_write(codec, WM8753_PCM, voice); 910 return 0; 911 } 912 913 /* 914 * Set's PCM dai fmt and BCLK. 915 */ 916 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec, 917 unsigned int fmt) 918 { 919 u16 voice, ioctl; 920 921 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f; 922 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d; 923 924 /* set master/slave audio interface */ 925 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 926 case SND_SOC_DAIFMT_CBS_CFS: 927 break; 928 case SND_SOC_DAIFMT_CBM_CFM: 929 ioctl |= 0x2; 930 case SND_SOC_DAIFMT_CBM_CFS: 931 voice |= 0x0040; 932 break; 933 default: 934 return -EINVAL; 935 } 936 937 /* clock inversion */ 938 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 939 case SND_SOC_DAIFMT_DSP_A: 940 case SND_SOC_DAIFMT_DSP_B: 941 /* frame inversion not valid for DSP modes */ 942 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 943 case SND_SOC_DAIFMT_NB_NF: 944 break; 945 case SND_SOC_DAIFMT_IB_NF: 946 voice |= 0x0080; 947 break; 948 default: 949 return -EINVAL; 950 } 951 break; 952 case SND_SOC_DAIFMT_I2S: 953 case SND_SOC_DAIFMT_RIGHT_J: 954 case SND_SOC_DAIFMT_LEFT_J: 955 voice &= ~0x0010; 956 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 957 case SND_SOC_DAIFMT_NB_NF: 958 break; 959 case SND_SOC_DAIFMT_IB_IF: 960 voice |= 0x0090; 961 break; 962 case SND_SOC_DAIFMT_IB_NF: 963 voice |= 0x0080; 964 break; 965 case SND_SOC_DAIFMT_NB_IF: 966 voice |= 0x0010; 967 break; 968 default: 969 return -EINVAL; 970 } 971 break; 972 default: 973 return -EINVAL; 974 } 975 976 snd_soc_write(codec, WM8753_PCM, voice); 977 snd_soc_write(codec, WM8753_IOCTL, ioctl); 978 return 0; 979 } 980 981 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai, 982 int div_id, int div) 983 { 984 struct snd_soc_codec *codec = codec_dai->codec; 985 u16 reg; 986 987 switch (div_id) { 988 case WM8753_PCMDIV: 989 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f; 990 snd_soc_write(codec, WM8753_CLOCK, reg | div); 991 break; 992 case WM8753_BCLKDIV: 993 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7; 994 snd_soc_write(codec, WM8753_SRATE2, reg | div); 995 break; 996 case WM8753_VXCLKDIV: 997 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f; 998 snd_soc_write(codec, WM8753_SRATE2, reg | div); 999 break; 1000 default: 1001 return -EINVAL; 1002 } 1003 return 0; 1004 } 1005 1006 /* 1007 * Set's HiFi DAC format. 1008 */ 1009 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec, 1010 unsigned int fmt) 1011 { 1012 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0; 1013 1014 /* interface format */ 1015 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1016 case SND_SOC_DAIFMT_I2S: 1017 hifi |= 0x0002; 1018 break; 1019 case SND_SOC_DAIFMT_RIGHT_J: 1020 break; 1021 case SND_SOC_DAIFMT_LEFT_J: 1022 hifi |= 0x0001; 1023 break; 1024 case SND_SOC_DAIFMT_DSP_A: 1025 hifi |= 0x0003; 1026 break; 1027 case SND_SOC_DAIFMT_DSP_B: 1028 hifi |= 0x0013; 1029 break; 1030 default: 1031 return -EINVAL; 1032 } 1033 1034 snd_soc_write(codec, WM8753_HIFI, hifi); 1035 return 0; 1036 } 1037 1038 /* 1039 * Set's I2S DAI format. 1040 */ 1041 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec, 1042 unsigned int fmt) 1043 { 1044 u16 ioctl, hifi; 1045 1046 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f; 1047 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae; 1048 1049 /* set master/slave audio interface */ 1050 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 1051 case SND_SOC_DAIFMT_CBS_CFS: 1052 break; 1053 case SND_SOC_DAIFMT_CBM_CFM: 1054 ioctl |= 0x1; 1055 case SND_SOC_DAIFMT_CBM_CFS: 1056 hifi |= 0x0040; 1057 break; 1058 default: 1059 return -EINVAL; 1060 } 1061 1062 /* clock inversion */ 1063 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1064 case SND_SOC_DAIFMT_DSP_A: 1065 case SND_SOC_DAIFMT_DSP_B: 1066 /* frame inversion not valid for DSP modes */ 1067 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1068 case SND_SOC_DAIFMT_NB_NF: 1069 break; 1070 case SND_SOC_DAIFMT_IB_NF: 1071 hifi |= 0x0080; 1072 break; 1073 default: 1074 return -EINVAL; 1075 } 1076 break; 1077 case SND_SOC_DAIFMT_I2S: 1078 case SND_SOC_DAIFMT_RIGHT_J: 1079 case SND_SOC_DAIFMT_LEFT_J: 1080 hifi &= ~0x0010; 1081 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1082 case SND_SOC_DAIFMT_NB_NF: 1083 break; 1084 case SND_SOC_DAIFMT_IB_IF: 1085 hifi |= 0x0090; 1086 break; 1087 case SND_SOC_DAIFMT_IB_NF: 1088 hifi |= 0x0080; 1089 break; 1090 case SND_SOC_DAIFMT_NB_IF: 1091 hifi |= 0x0010; 1092 break; 1093 default: 1094 return -EINVAL; 1095 } 1096 break; 1097 default: 1098 return -EINVAL; 1099 } 1100 1101 snd_soc_write(codec, WM8753_HIFI, hifi); 1102 snd_soc_write(codec, WM8753_IOCTL, ioctl); 1103 return 0; 1104 } 1105 1106 /* 1107 * Set PCM DAI bit size and sample rate. 1108 */ 1109 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream, 1110 struct snd_pcm_hw_params *params, 1111 struct snd_soc_dai *dai) 1112 { 1113 struct snd_soc_pcm_runtime *rtd = substream->private_data; 1114 struct snd_soc_codec *codec = rtd->codec; 1115 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1116 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0; 1117 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3; 1118 int coeff; 1119 1120 /* is digital filter coefficient valid ? */ 1121 coeff = get_coeff(wm8753->sysclk, params_rate(params)); 1122 if (coeff < 0) { 1123 printk(KERN_ERR "wm8753 invalid MCLK or rate\n"); 1124 return coeff; 1125 } 1126 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) | 1127 coeff_div[coeff].usb); 1128 1129 /* bit size */ 1130 switch (params_format(params)) { 1131 case SNDRV_PCM_FORMAT_S16_LE: 1132 break; 1133 case SNDRV_PCM_FORMAT_S20_3LE: 1134 hifi |= 0x0004; 1135 break; 1136 case SNDRV_PCM_FORMAT_S24_LE: 1137 hifi |= 0x0008; 1138 break; 1139 case SNDRV_PCM_FORMAT_S32_LE: 1140 hifi |= 0x000c; 1141 break; 1142 } 1143 1144 snd_soc_write(codec, WM8753_HIFI, hifi); 1145 return 0; 1146 } 1147 1148 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec, 1149 unsigned int fmt) 1150 { 1151 u16 clock; 1152 1153 /* set clk source as pcmclk */ 1154 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; 1155 snd_soc_write(codec, WM8753_CLOCK, clock); 1156 1157 return wm8753_vdac_adc_set_dai_fmt(codec, fmt); 1158 } 1159 1160 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec, 1161 unsigned int fmt) 1162 { 1163 return wm8753_hdac_set_dai_fmt(codec, fmt); 1164 } 1165 1166 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec, 1167 unsigned int fmt) 1168 { 1169 u16 clock; 1170 1171 /* set clk source as pcmclk */ 1172 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; 1173 snd_soc_write(codec, WM8753_CLOCK, clock); 1174 1175 return wm8753_vdac_adc_set_dai_fmt(codec, fmt); 1176 } 1177 1178 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec, 1179 unsigned int fmt) 1180 { 1181 u16 clock; 1182 1183 /* set clk source as mclk */ 1184 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; 1185 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4); 1186 1187 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0) 1188 return -EINVAL; 1189 return wm8753_vdac_adc_set_dai_fmt(codec, fmt); 1190 } 1191 1192 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec, 1193 unsigned int fmt) 1194 { 1195 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1196 int ret = 0; 1197 1198 switch (wm8753->dai_func) { 1199 case 0: 1200 ret = wm8753_mode1h_set_dai_fmt(codec, fmt); 1201 break; 1202 case 1: 1203 ret = wm8753_mode2_set_dai_fmt(codec, fmt); 1204 break; 1205 case 2: 1206 case 3: 1207 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt); 1208 break; 1209 default: 1210 break; 1211 } 1212 if (ret) 1213 return ret; 1214 1215 return wm8753_i2s_set_dai_fmt(codec, fmt); 1216 } 1217 1218 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai, 1219 unsigned int fmt) 1220 { 1221 struct snd_soc_codec *codec = codec_dai->codec; 1222 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1223 1224 wm8753->hifi_fmt = fmt; 1225 1226 return wm8753_hifi_write_dai_fmt(codec, fmt); 1227 }; 1228 1229 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec, 1230 unsigned int fmt) 1231 { 1232 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1233 int ret = 0; 1234 1235 if (wm8753->dai_func != 0) 1236 return 0; 1237 1238 ret = wm8753_mode1v_set_dai_fmt(codec, fmt); 1239 if (ret) 1240 return ret; 1241 ret = wm8753_pcm_set_dai_fmt(codec, fmt); 1242 if (ret) 1243 return ret; 1244 1245 return 0; 1246 }; 1247 1248 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai, 1249 unsigned int fmt) 1250 { 1251 struct snd_soc_codec *codec = codec_dai->codec; 1252 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1253 1254 wm8753->voice_fmt = fmt; 1255 1256 return wm8753_voice_write_dai_fmt(codec, fmt); 1257 }; 1258 1259 static int wm8753_mute(struct snd_soc_dai *dai, int mute) 1260 { 1261 struct snd_soc_codec *codec = dai->codec; 1262 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7; 1263 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1264 1265 /* the digital mute covers the HiFi and Voice DAC's on the WM8753. 1266 * make sure we check if they are not both active when we mute */ 1267 if (mute && wm8753->dai_func == 1) { 1268 if (!codec->active) 1269 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8); 1270 } else { 1271 if (mute) 1272 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8); 1273 else 1274 snd_soc_write(codec, WM8753_DAC, mute_reg); 1275 } 1276 1277 return 0; 1278 } 1279 1280 static int wm8753_set_bias_level(struct snd_soc_codec *codec, 1281 enum snd_soc_bias_level level) 1282 { 1283 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e; 1284 1285 switch (level) { 1286 case SND_SOC_BIAS_ON: 1287 /* set vmid to 50k and unmute dac */ 1288 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0); 1289 break; 1290 case SND_SOC_BIAS_PREPARE: 1291 /* set vmid to 5k for quick power up */ 1292 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1); 1293 break; 1294 case SND_SOC_BIAS_STANDBY: 1295 /* mute dac and set vmid to 500k, enable VREF */ 1296 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141); 1297 break; 1298 case SND_SOC_BIAS_OFF: 1299 snd_soc_write(codec, WM8753_PWR1, 0x0001); 1300 break; 1301 } 1302 codec->dapm.bias_level = level; 1303 return 0; 1304 } 1305 1306 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ 1307 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ 1308 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ 1309 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) 1310 1311 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 1312 SNDRV_PCM_FMTBIT_S24_LE) 1313 1314 /* 1315 * The WM8753 supports upto 4 different and mutually exclusive DAI 1316 * configurations. This gives 2 PCM's available for use, hifi and voice. 1317 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI 1318 * is connected between the wm8753 and a BT codec or GSM modem. 1319 * 1320 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI 1321 * 2. Voice over HIFI DAI - HIFI disabled 1322 * 3. Voice disabled - HIFI over HIFI 1323 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture 1324 */ 1325 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = { 1326 .hw_params = wm8753_i2s_hw_params, 1327 .digital_mute = wm8753_mute, 1328 .set_fmt = wm8753_hifi_set_dai_fmt, 1329 .set_clkdiv = wm8753_set_dai_clkdiv, 1330 .set_pll = wm8753_set_dai_pll, 1331 .set_sysclk = wm8753_set_dai_sysclk, 1332 }; 1333 1334 static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = { 1335 .hw_params = wm8753_pcm_hw_params, 1336 .digital_mute = wm8753_mute, 1337 .set_fmt = wm8753_voice_set_dai_fmt, 1338 .set_clkdiv = wm8753_set_dai_clkdiv, 1339 .set_pll = wm8753_set_dai_pll, 1340 .set_sysclk = wm8753_set_dai_sysclk, 1341 }; 1342 1343 static struct snd_soc_dai_driver wm8753_dai[] = { 1344 /* DAI HiFi mode 1 */ 1345 { .name = "wm8753-hifi", 1346 .playback = { 1347 .stream_name = "HiFi Playback", 1348 .channels_min = 1, 1349 .channels_max = 2, 1350 .rates = WM8753_RATES, 1351 .formats = WM8753_FORMATS 1352 }, 1353 .capture = { /* dummy for fast DAI switching */ 1354 .stream_name = "Capture", 1355 .channels_min = 1, 1356 .channels_max = 2, 1357 .rates = WM8753_RATES, 1358 .formats = WM8753_FORMATS 1359 }, 1360 .ops = &wm8753_dai_ops_hifi_mode, 1361 }, 1362 /* DAI Voice mode 1 */ 1363 { .name = "wm8753-voice", 1364 .playback = { 1365 .stream_name = "Voice Playback", 1366 .channels_min = 1, 1367 .channels_max = 1, 1368 .rates = WM8753_RATES, 1369 .formats = WM8753_FORMATS, 1370 }, 1371 .capture = { 1372 .stream_name = "Capture", 1373 .channels_min = 1, 1374 .channels_max = 2, 1375 .rates = WM8753_RATES, 1376 .formats = WM8753_FORMATS, 1377 }, 1378 .ops = &wm8753_dai_ops_voice_mode, 1379 }, 1380 }; 1381 1382 static void wm8753_work(struct work_struct *work) 1383 { 1384 struct snd_soc_dapm_context *dapm = 1385 container_of(work, struct snd_soc_dapm_context, 1386 delayed_work.work); 1387 struct snd_soc_codec *codec = dapm->codec; 1388 wm8753_set_bias_level(codec, dapm->bias_level); 1389 } 1390 1391 static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state) 1392 { 1393 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF); 1394 return 0; 1395 } 1396 1397 static int wm8753_resume(struct snd_soc_codec *codec) 1398 { 1399 u16 *reg_cache = codec->reg_cache; 1400 int i; 1401 1402 /* Sync reg_cache with the hardware */ 1403 for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) { 1404 if (i == WM8753_RESET) 1405 continue; 1406 1407 /* No point in writing hardware default values back */ 1408 if (reg_cache[i] == wm8753_reg[i]) 1409 continue; 1410 1411 snd_soc_write(codec, i, reg_cache[i]); 1412 } 1413 1414 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1415 1416 /* charge wm8753 caps */ 1417 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { 1418 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE); 1419 codec->dapm.bias_level = SND_SOC_BIAS_ON; 1420 schedule_delayed_work(&codec->dapm.delayed_work, 1421 msecs_to_jiffies(caps_charge)); 1422 } 1423 1424 return 0; 1425 } 1426 1427 static int wm8753_probe(struct snd_soc_codec *codec) 1428 { 1429 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1430 int ret; 1431 1432 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work); 1433 1434 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type); 1435 if (ret < 0) { 1436 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 1437 return ret; 1438 } 1439 1440 ret = wm8753_reset(codec); 1441 if (ret < 0) { 1442 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 1443 return ret; 1444 } 1445 1446 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1447 wm8753->dai_func = 0; 1448 1449 /* charge output caps */ 1450 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE); 1451 schedule_delayed_work(&codec->dapm.delayed_work, 1452 msecs_to_jiffies(caps_charge)); 1453 1454 /* set the update bits */ 1455 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100); 1456 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100); 1457 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100); 1458 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100); 1459 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100); 1460 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100); 1461 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100); 1462 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100); 1463 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100); 1464 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100); 1465 1466 snd_soc_add_controls(codec, wm8753_snd_controls, 1467 ARRAY_SIZE(wm8753_snd_controls)); 1468 wm8753_add_widgets(codec); 1469 1470 return 0; 1471 } 1472 1473 /* power down chip */ 1474 static int wm8753_remove(struct snd_soc_codec *codec) 1475 { 1476 flush_delayed_work_sync(&codec->dapm.delayed_work); 1477 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF); 1478 1479 return 0; 1480 } 1481 1482 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = { 1483 .probe = wm8753_probe, 1484 .remove = wm8753_remove, 1485 .suspend = wm8753_suspend, 1486 .resume = wm8753_resume, 1487 .set_bias_level = wm8753_set_bias_level, 1488 .reg_cache_size = ARRAY_SIZE(wm8753_reg), 1489 .reg_word_size = sizeof(u16), 1490 .reg_cache_default = wm8753_reg, 1491 }; 1492 1493 #if defined(CONFIG_SPI_MASTER) 1494 static int __devinit wm8753_spi_probe(struct spi_device *spi) 1495 { 1496 struct wm8753_priv *wm8753; 1497 int ret; 1498 1499 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL); 1500 if (wm8753 == NULL) 1501 return -ENOMEM; 1502 1503 wm8753->control_type = SND_SOC_SPI; 1504 spi_set_drvdata(spi, wm8753); 1505 1506 ret = snd_soc_register_codec(&spi->dev, 1507 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai)); 1508 if (ret < 0) 1509 kfree(wm8753); 1510 return ret; 1511 } 1512 1513 static int __devexit wm8753_spi_remove(struct spi_device *spi) 1514 { 1515 snd_soc_unregister_codec(&spi->dev); 1516 kfree(spi_get_drvdata(spi)); 1517 return 0; 1518 } 1519 1520 static struct spi_driver wm8753_spi_driver = { 1521 .driver = { 1522 .name = "wm8753-codec", 1523 .owner = THIS_MODULE, 1524 }, 1525 .probe = wm8753_spi_probe, 1526 .remove = __devexit_p(wm8753_spi_remove), 1527 }; 1528 #endif /* CONFIG_SPI_MASTER */ 1529 1530 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 1531 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c, 1532 const struct i2c_device_id *id) 1533 { 1534 struct wm8753_priv *wm8753; 1535 int ret; 1536 1537 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL); 1538 if (wm8753 == NULL) 1539 return -ENOMEM; 1540 1541 i2c_set_clientdata(i2c, wm8753); 1542 wm8753->control_type = SND_SOC_I2C; 1543 1544 ret = snd_soc_register_codec(&i2c->dev, 1545 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai)); 1546 if (ret < 0) 1547 kfree(wm8753); 1548 return ret; 1549 } 1550 1551 static __devexit int wm8753_i2c_remove(struct i2c_client *client) 1552 { 1553 snd_soc_unregister_codec(&client->dev); 1554 kfree(i2c_get_clientdata(client)); 1555 return 0; 1556 } 1557 1558 static const struct i2c_device_id wm8753_i2c_id[] = { 1559 { "wm8753", 0 }, 1560 { } 1561 }; 1562 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id); 1563 1564 static struct i2c_driver wm8753_i2c_driver = { 1565 .driver = { 1566 .name = "wm8753-codec", 1567 .owner = THIS_MODULE, 1568 }, 1569 .probe = wm8753_i2c_probe, 1570 .remove = __devexit_p(wm8753_i2c_remove), 1571 .id_table = wm8753_i2c_id, 1572 }; 1573 #endif 1574 1575 static int __init wm8753_modinit(void) 1576 { 1577 int ret = 0; 1578 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 1579 ret = i2c_add_driver(&wm8753_i2c_driver); 1580 if (ret != 0) { 1581 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n", 1582 ret); 1583 } 1584 #endif 1585 #if defined(CONFIG_SPI_MASTER) 1586 ret = spi_register_driver(&wm8753_spi_driver); 1587 if (ret != 0) { 1588 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n", 1589 ret); 1590 } 1591 #endif 1592 return ret; 1593 } 1594 module_init(wm8753_modinit); 1595 1596 static void __exit wm8753_exit(void) 1597 { 1598 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 1599 i2c_del_driver(&wm8753_i2c_driver); 1600 #endif 1601 #if defined(CONFIG_SPI_MASTER) 1602 spi_unregister_driver(&wm8753_spi_driver); 1603 #endif 1604 } 1605 module_exit(wm8753_exit); 1606 1607 MODULE_DESCRIPTION("ASoC WM8753 driver"); 1608 MODULE_AUTHOR("Liam Girdwood"); 1609 MODULE_LICENSE("GPL"); 1610