sound/soc/codecs/wm8750.c

   1 /*
   2  * wm8750.c -- WM8750 ALSA SoC audio driver
   3  *
   4  * Copyright 2005 Openedhand Ltd.
   5  *
   6  * Author: Richard Purdie <richard@openedhand.com>
   7  *
   8  * Based on WM8753.c
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/module.h>
  16 #include <linux/moduleparam.h>
  17 #include <linux/init.h>
  18 #include <linux/delay.h>
  19 #include <linux/pm.h>
  20 #include <linux/i2c.h>
  21 #include <linux/spi/spi.h>
  22 #include <linux/slab.h>
  23 #include <linux/of_device.h>
  24 #include <sound/core.h>
  25 #include <sound/pcm.h>
  26 #include <sound/pcm_params.h>
  27 #include <sound/soc.h>
  28 #include <sound/initval.h>
  29
  30 #include "wm8750.h"
  31
  32 /*
  33  * wm8750 register cache
  34  * We can't read the WM8750 register space when we
  35  * are using 2 wire for device control, so we cache them instead.
  36  */
  37 static const u16 wm8750_reg[] = {
  38         0x0097, 0x0097, 0x0079, 0x0079,  /*  0 */
  39         0x0000, 0x0008, 0x0000, 0x000a,  /*  4 */
  40         0x0000, 0x0000, 0x00ff, 0x00ff,  /*  8 */
  41         0x000f, 0x000f, 0x0000, 0x0000,  /* 12 */
  42         0x0000, 0x007b, 0x0000, 0x0032,  /* 16 */
  43         0x0000, 0x00c3, 0x00c3, 0x00c0,  /* 20 */
  44         0x0000, 0x0000, 0x0000, 0x0000,  /* 24 */
  45         0x0000, 0x0000, 0x0000, 0x0000,  /* 28 */
  46         0x0000, 0x0000, 0x0050, 0x0050,  /* 32 */
  47         0x0050, 0x0050, 0x0050, 0x0050,  /* 36 */
  48         0x0079, 0x0079, 0x0079,          /* 40 */
  49 };
  50
  51 /* codec private data */
  52 struct wm8750_priv {
  53         unsigned int sysclk;
  54         enum snd_soc_control_type control_type;
  55 };
  56
  57 #define wm8750_reset(c) snd_soc_write(c, WM8750_RESET, 0)
  58
  59 /*
  60  * WM8750 Controls
  61  */
  62 static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
  63 static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
  64 static const char *wm8750_treble[] = {"8kHz", "4kHz"};
  65 static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
  66 static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
  67 static const char *wm8750_3d_func[] = {"Capture", "Playback"};
  68 static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
  69 static const char *wm8750_ng_type[] = {"Constant PGA Gain",
  70         "Mute ADC Output"};
  71 static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
  72         "Differential"};
  73 static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
  74         "Differential"};
  75 static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
  76         "ROUT1"};
  77 static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
  78 static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
  79         "L + R Invert"};
  80 static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
  81 static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
  82         "Mono (Right)", "Digital Mono"};
  83
  84 static const struct soc_enum wm8750_enum[] = {
  85 SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
  86 SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
  87 SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
  88 SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
  89 SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
  90 SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
  91 SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
  92 SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
  93 SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
  94 SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
  95 SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */
  96 SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel),
  97 SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3),
  98 SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel),
  99 SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol),
 100 SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph),
 101 SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */
 102
 103 };
 104
 105 static const struct snd_kcontrol_new wm8750_snd_controls[] = {
 106
 107 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0),
 108 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0),
 109 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1),
 110
 111 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V,
 112         WM8750_ROUT1V, 7, 1, 0),
 113 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
 114         WM8750_ROUT2V, 7, 1, 0),
 115
 116 SOC_ENUM("Playback De-emphasis", wm8750_enum[15]),
 117
 118 SOC_ENUM("Capture Polarity", wm8750_enum[14]),
 119 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0),
 120 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0),
 121
 122 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0),
 123
 124 SOC_ENUM("Bass Boost", wm8750_enum[0]),
 125 SOC_ENUM("Bass Filter", wm8750_enum[1]),
 126 SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1),
 127
 128 SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1),
 129 SOC_ENUM("Treble Cut-off", wm8750_enum[2]),
 130
 131 SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0),
 132 SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0),
 133 SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]),
 134 SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]),
 135 SOC_ENUM("3D Mode", wm8750_enum[5]),
 136
 137 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0),
 138 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0),
 139 SOC_ENUM("ALC Capture Function", wm8750_enum[6]),
 140 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0),
 141 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0),
 142 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0),
 143 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0),
 144 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0),
 145 SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]),
 146 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0),
 147
 148 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0),
 149 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0),
 150
 151 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0),
 152 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0),
 153
 154 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0),
 155
 156 /* Unimplemented */
 157 /* ADCDAC Bit 0 - ADCHPD */
 158 /* ADCDAC Bit 4 - HPOR */
 159 /* ADCTL1 Bit 2,3 - DATSEL */
 160 /* ADCTL1 Bit 4,5 - DMONOMIX */
 161 /* ADCTL1 Bit 6,7 - VSEL */
 162 /* ADCTL2 Bit 2 - LRCM */
 163 /* ADCTL2 Bit 3 - TRI */
 164 /* ADCTL3 Bit 5 - HPFLREN */
 165 /* ADCTL3 Bit 6 - VROI */
 166 /* ADCTL3 Bit 7,8 - ADCLRM */
 167 /* ADCIN Bit 4 - LDCM */
 168 /* ADCIN Bit 5 - RDCM */
 169
 170 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0),
 171
 172 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1,
 173         WM8750_LOUTM2, 4, 7, 1),
 174 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1,
 175         WM8750_ROUTM2, 4, 7, 1),
 176 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1,
 177         WM8750_MOUTM2, 4, 7, 1),
 178
 179 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0),
 180
 181 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V,
 182         0, 127, 0),
 183 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
 184         0, 127, 0),
 185
 186 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
 187
 188 };
 189
 190 /*
 191  * DAPM Controls
 192  */
 193
 194 /* Left Mixer */
 195 static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = {
 196 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0),
 197 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0),
 198 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0),
 199 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0),
 200 };
 201
 202 /* Right Mixer */
 203 static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = {
 204 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0),
 205 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0),
 206 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0),
 207 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0),
 208 };
 209
 210 /* Mono Mixer */
 211 static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = {
 212 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0),
 213 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0),
 214 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0),
 215 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0),
 216 };
 217
 218 /* Left Line Mux */
 219 static const struct snd_kcontrol_new wm8750_left_line_controls =
 220 SOC_DAPM_ENUM("Route", wm8750_enum[8]);
 221
 222 /* Right Line Mux */
 223 static const struct snd_kcontrol_new wm8750_right_line_controls =
 224 SOC_DAPM_ENUM("Route", wm8750_enum[9]);
 225
 226 /* Left PGA Mux */
 227 static const struct snd_kcontrol_new wm8750_left_pga_controls =
 228 SOC_DAPM_ENUM("Route", wm8750_enum[10]);
 229
 230 /* Right PGA Mux */
 231 static const struct snd_kcontrol_new wm8750_right_pga_controls =
 232 SOC_DAPM_ENUM("Route", wm8750_enum[11]);
 233
 234 /* Out 3 Mux */
 235 static const struct snd_kcontrol_new wm8750_out3_controls =
 236 SOC_DAPM_ENUM("Route", wm8750_enum[12]);
 237
 238 /* Differential Mux */
 239 static const struct snd_kcontrol_new wm8750_diffmux_controls =
 240 SOC_DAPM_ENUM("Route", wm8750_enum[13]);
 241
 242 /* Mono ADC Mux */
 243 static const struct snd_kcontrol_new wm8750_monomux_controls =
 244 SOC_DAPM_ENUM("Route", wm8750_enum[16]);
 245
 246 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
 247         SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
 248                 &wm8750_left_mixer_controls[0],
 249                 ARRAY_SIZE(wm8750_left_mixer_controls)),
 250         SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
 251                 &wm8750_right_mixer_controls[0],
 252                 ARRAY_SIZE(wm8750_right_mixer_controls)),
 253         SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0,
 254                 &wm8750_mono_mixer_controls[0],
 255                 ARRAY_SIZE(wm8750_mono_mixer_controls)),
 256
 257         SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0),
 258         SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0),
 259         SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0),
 260         SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0),
 261         SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0),
 262         SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0),
 263
 264         SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0),
 265         SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0),
 266         SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0),
 267
 268         SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0,
 269                 &wm8750_left_pga_controls),
 270         SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0,
 271                 &wm8750_right_pga_controls),
 272         SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
 273                 &wm8750_left_line_controls),
 274         SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
 275                 &wm8750_right_line_controls),
 276
 277         SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls),
 278         SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0),
 279         SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0),
 280
 281         SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
 282                 &wm8750_diffmux_controls),
 283         SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
 284                 &wm8750_monomux_controls),
 285         SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
 286                 &wm8750_monomux_controls),
 287
 288         SND_SOC_DAPM_OUTPUT("LOUT1"),
 289         SND_SOC_DAPM_OUTPUT("ROUT1"),
 290         SND_SOC_DAPM_OUTPUT("LOUT2"),
 291         SND_SOC_DAPM_OUTPUT("ROUT2"),
 292         SND_SOC_DAPM_OUTPUT("MONO1"),
 293         SND_SOC_DAPM_OUTPUT("OUT3"),
 294         SND_SOC_DAPM_OUTPUT("VREF"),
 295
 296         SND_SOC_DAPM_INPUT("LINPUT1"),
 297         SND_SOC_DAPM_INPUT("LINPUT2"),
 298         SND_SOC_DAPM_INPUT("LINPUT3"),
 299         SND_SOC_DAPM_INPUT("RINPUT1"),
 300         SND_SOC_DAPM_INPUT("RINPUT2"),
 301         SND_SOC_DAPM_INPUT("RINPUT3"),
 302 };
 303
 304 static const struct snd_soc_dapm_route wm8750_dapm_routes[] = {
 305         /* left mixer */
 306         {"Left Mixer", "Playback Switch", "Left DAC"},
 307         {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
 308         {"Left Mixer", "Right Playback Switch", "Right DAC"},
 309         {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
 310
 311         /* right mixer */
 312         {"Right Mixer", "Left Playback Switch", "Left DAC"},
 313         {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
 314         {"Right Mixer", "Playback Switch", "Right DAC"},
 315         {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
 316
 317         /* left out 1 */
 318         {"Left Out 1", NULL, "Left Mixer"},
 319         {"LOUT1", NULL, "Left Out 1"},
 320
 321         /* left out 2 */
 322         {"Left Out 2", NULL, "Left Mixer"},
 323         {"LOUT2", NULL, "Left Out 2"},
 324
 325         /* right out 1 */
 326         {"Right Out 1", NULL, "Right Mixer"},
 327         {"ROUT1", NULL, "Right Out 1"},
 328
 329         /* right out 2 */
 330         {"Right Out 2", NULL, "Right Mixer"},
 331         {"ROUT2", NULL, "Right Out 2"},
 332
 333         /* mono mixer */
 334         {"Mono Mixer", "Left Playback Switch", "Left DAC"},
 335         {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
 336         {"Mono Mixer", "Right Playback Switch", "Right DAC"},
 337         {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
 338
 339         /* mono out */
 340         {"Mono Out 1", NULL, "Mono Mixer"},
 341         {"MONO1", NULL, "Mono Out 1"},
 342
 343         /* out 3 */
 344         {"Out3 Mux", "VREF", "VREF"},
 345         {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
 346         {"Out3 Mux", "ROUT1", "Right Mixer"},
 347         {"Out3 Mux", "MonoOut", "MONO1"},
 348         {"Out 3", NULL, "Out3 Mux"},
 349         {"OUT3", NULL, "Out 3"},
 350
 351         /* Left Line Mux */
 352         {"Left Line Mux", "Line 1", "LINPUT1"},
 353         {"Left Line Mux", "Line 2", "LINPUT2"},
 354         {"Left Line Mux", "Line 3", "LINPUT3"},
 355         {"Left Line Mux", "PGA", "Left PGA Mux"},
 356         {"Left Line Mux", "Differential", "Differential Mux"},
 357
 358         /* Right Line Mux */
 359         {"Right Line Mux", "Line 1", "RINPUT1"},
 360         {"Right Line Mux", "Line 2", "RINPUT2"},
 361         {"Right Line Mux", "Line 3", "RINPUT3"},
 362         {"Right Line Mux", "PGA", "Right PGA Mux"},
 363         {"Right Line Mux", "Differential", "Differential Mux"},
 364
 365         /* Left PGA Mux */
 366         {"Left PGA Mux", "Line 1", "LINPUT1"},
 367         {"Left PGA Mux", "Line 2", "LINPUT2"},
 368         {"Left PGA Mux", "Line 3", "LINPUT3"},
 369         {"Left PGA Mux", "Differential", "Differential Mux"},
 370
 371         /* Right PGA Mux */
 372         {"Right PGA Mux", "Line 1", "RINPUT1"},
 373         {"Right PGA Mux", "Line 2", "RINPUT2"},
 374         {"Right PGA Mux", "Line 3", "RINPUT3"},
 375         {"Right PGA Mux", "Differential", "Differential Mux"},
 376
 377         /* Differential Mux */
 378         {"Differential Mux", "Line 1", "LINPUT1"},
 379         {"Differential Mux", "Line 1", "RINPUT1"},
 380         {"Differential Mux", "Line 2", "LINPUT2"},
 381         {"Differential Mux", "Line 2", "RINPUT2"},
 382
 383         /* Left ADC Mux */
 384         {"Left ADC Mux", "Stereo", "Left PGA Mux"},
 385         {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
 386         {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
 387
 388         /* Right ADC Mux */
 389         {"Right ADC Mux", "Stereo", "Right PGA Mux"},
 390         {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
 391         {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
 392
 393         /* ADC */
 394         {"Left ADC", NULL, "Left ADC Mux"},
 395         {"Right ADC", NULL, "Right ADC Mux"},
 396 };
 397
 398 struct _coeff_div {
 399         u32 mclk;
 400         u32 rate;
 401         u16 fs;
 402         u8 sr:5;
 403         u8 usb:1;
 404 };
 405
 406 /* codec hifi mclk clock divider coefficients */
 407 static const struct _coeff_div coeff_div[] = {
 408         /* 8k */
 409         {12288000, 8000, 1536, 0x6, 0x0},
 410         {11289600, 8000, 1408, 0x16, 0x0},
 411         {18432000, 8000, 2304, 0x7, 0x0},
 412         {16934400, 8000, 2112, 0x17, 0x0},
 413         {12000000, 8000, 1500, 0x6, 0x1},
 414
 415         /* 11.025k */
 416         {11289600, 11025, 1024, 0x18, 0x0},
 417         {16934400, 11025, 1536, 0x19, 0x0},
 418         {12000000, 11025, 1088, 0x19, 0x1},
 419
 420         /* 16k */
 421         {12288000, 16000, 768, 0xa, 0x0},
 422         {18432000, 16000, 1152, 0xb, 0x0},
 423         {12000000, 16000, 750, 0xa, 0x1},
 424
 425         /* 22.05k */
 426         {11289600, 22050, 512, 0x1a, 0x0},
 427         {16934400, 22050, 768, 0x1b, 0x0},
 428         {12000000, 22050, 544, 0x1b, 0x1},
 429
 430         /* 32k */
 431         {12288000, 32000, 384, 0xc, 0x0},
 432         {18432000, 32000, 576, 0xd, 0x0},
 433         {12000000, 32000, 375, 0xa, 0x1},
 434
 435         /* 44.1k */
 436         {11289600, 44100, 256, 0x10, 0x0},
 437         {16934400, 44100, 384, 0x11, 0x0},
 438         {12000000, 44100, 272, 0x11, 0x1},
 439
 440         /* 48k */
 441         {12288000, 48000, 256, 0x0, 0x0},
 442         {18432000, 48000, 384, 0x1, 0x0},
 443         {12000000, 48000, 250, 0x0, 0x1},
 444
 445         /* 88.2k */
 446         {11289600, 88200, 128, 0x1e, 0x0},
 447         {16934400, 88200, 192, 0x1f, 0x0},
 448         {12000000, 88200, 136, 0x1f, 0x1},
 449
 450         /* 96k */
 451         {12288000, 96000, 128, 0xe, 0x0},
 452         {18432000, 96000, 192, 0xf, 0x0},
 453         {12000000, 96000, 125, 0xe, 0x1},
 454 };
 455
 456 static inline int get_coeff(int mclk, int rate)
 457 {
 458         int i;
 459
 460         for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
 461                 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
 462                         return i;
 463         }
 464
 465         printk(KERN_ERR "wm8750: could not get coeff for mclk %d @ rate %d\n",
 466                 mclk, rate);
 467         return -EINVAL;
 468 }
 469
 470 static int wm8750_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 471                 int clk_id, unsigned int freq, int dir)
 472 {
 473         struct snd_soc_codec *codec = codec_dai->codec;
 474         struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
 475
 476         switch (freq) {
 477         case 11289600:
 478         case 12000000:
 479         case 12288000:
 480         case 16934400:
 481         case 18432000:
 482                 wm8750->sysclk = freq;
 483                 return 0;
 484         }
 485         return -EINVAL;
 486 }
 487
 488 static int wm8750_set_dai_fmt(struct snd_soc_dai *codec_dai,
 489                 unsigned int fmt)
 490 {
 491         struct snd_soc_codec *codec = codec_dai->codec;
 492         u16 iface = 0;
 493
 494         /* set master/slave audio interface */
 495         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 496         case SND_SOC_DAIFMT_CBM_CFM:
 497                 iface = 0x0040;
 498                 break;
 499         case SND_SOC_DAIFMT_CBS_CFS:
 500                 break;
 501         default:
 502                 return -EINVAL;
 503         }
 504
 505         /* interface format */
 506         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 507         case SND_SOC_DAIFMT_I2S:
 508                 iface |= 0x0002;
 509                 break;
 510         case SND_SOC_DAIFMT_RIGHT_J:
 511                 break;
 512         case SND_SOC_DAIFMT_LEFT_J:
 513                 iface |= 0x0001;
 514                 break;
 515         case SND_SOC_DAIFMT_DSP_A:
 516                 iface |= 0x0003;
 517                 break;
 518         case SND_SOC_DAIFMT_DSP_B:
 519                 iface |= 0x0013;
 520                 break;
 521         default:
 522                 return -EINVAL;
 523         }
 524
 525         /* clock inversion */
 526         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 527         case SND_SOC_DAIFMT_NB_NF:
 528                 break;
 529         case SND_SOC_DAIFMT_IB_IF:
 530                 iface |= 0x0090;
 531                 break;
 532         case SND_SOC_DAIFMT_IB_NF:
 533                 iface |= 0x0080;
 534                 break;
 535         case SND_SOC_DAIFMT_NB_IF:
 536                 iface |= 0x0010;
 537                 break;
 538         default:
 539                 return -EINVAL;
 540         }
 541
 542         snd_soc_write(codec, WM8750_IFACE, iface);
 543         return 0;
 544 }
 545
 546 static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
 547                                 struct snd_pcm_hw_params *params,
 548                                 struct snd_soc_dai *dai)
 549 {
 550         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 551         struct snd_soc_codec *codec = rtd->codec;
 552         struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
 553         u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3;
 554         u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0;
 555         int coeff = get_coeff(wm8750->sysclk, params_rate(params));
 556
 557         /* bit size */
 558         switch (params_format(params)) {
 559         case SNDRV_PCM_FORMAT_S16_LE:
 560                 break;
 561         case SNDRV_PCM_FORMAT_S20_3LE:
 562                 iface |= 0x0004;
 563                 break;
 564         case SNDRV_PCM_FORMAT_S24_LE:
 565                 iface |= 0x0008;
 566                 break;
 567         case SNDRV_PCM_FORMAT_S32_LE:
 568                 iface |= 0x000c;
 569                 break;
 570         }
 571
 572         /* set iface & srate */
 573         snd_soc_write(codec, WM8750_IFACE, iface);
 574         if (coeff >= 0)
 575                 snd_soc_write(codec, WM8750_SRATE, srate |
 576                         (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
 577
 578         return 0;
 579 }
 580
 581 static int wm8750_mute(struct snd_soc_dai *dai, int mute)
 582 {
 583         struct snd_soc_codec *codec = dai->codec;
 584         u16 mute_reg = snd_soc_read(codec, WM8750_ADCDAC) & 0xfff7;
 585
 586         if (mute)
 587                 snd_soc_write(codec, WM8750_ADCDAC, mute_reg | 0x8);
 588         else
 589                 snd_soc_write(codec, WM8750_ADCDAC, mute_reg);
 590         return 0;
 591 }
 592
 593 static int wm8750_set_bias_level(struct snd_soc_codec *codec,
 594                                  enum snd_soc_bias_level level)
 595 {
 596         u16 pwr_reg = snd_soc_read(codec, WM8750_PWR1) & 0xfe3e;
 597
 598         switch (level) {
 599         case SND_SOC_BIAS_ON:
 600                 /* set vmid to 50k and unmute dac */
 601                 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x00c0);
 602                 break;
 603         case SND_SOC_BIAS_PREPARE:
 604                 break;
 605         case SND_SOC_BIAS_STANDBY:
 606                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
 607                         snd_soc_cache_sync(codec);
 608
 609                         /* Set VMID to 5k */
 610                         snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
 611
 612                         /* ...and ramp */
 613                         msleep(1000);
 614                 }
 615
 616                 /* mute dac and set vmid to 500k, enable VREF */
 617                 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x0141);
 618                 break;
 619         case SND_SOC_BIAS_OFF:
 620                 snd_soc_write(codec, WM8750_PWR1, 0x0001);
 621                 break;
 622         }
 623         codec->dapm.bias_level = level;
 624         return 0;
 625 }
 626
 627 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
 628         SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
 629         SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
 630
 631 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 632         SNDRV_PCM_FMTBIT_S24_LE)
 633
 634 static const struct snd_soc_dai_ops wm8750_dai_ops = {
 635         .hw_params      = wm8750_pcm_hw_params,
 636         .digital_mute   = wm8750_mute,
 637         .set_fmt        = wm8750_set_dai_fmt,
 638         .set_sysclk     = wm8750_set_dai_sysclk,
 639 };
 640
 641 static struct snd_soc_dai_driver wm8750_dai = {
 642         .name = "wm8750-hifi",
 643         .playback = {
 644                 .stream_name = "Playback",
 645                 .channels_min = 1,
 646                 .channels_max = 2,
 647                 .rates = WM8750_RATES,
 648                 .formats = WM8750_FORMATS,},
 649         .capture = {
 650                 .stream_name = "Capture",
 651                 .channels_min = 1,
 652                 .channels_max = 2,
 653                 .rates = WM8750_RATES,
 654                 .formats = WM8750_FORMATS,},
 655         .ops = &wm8750_dai_ops,
 656 };
 657
 658 static int wm8750_suspend(struct snd_soc_codec *codec)
 659 {
 660         wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
 661         return 0;
 662 }
 663
 664 static int wm8750_resume(struct snd_soc_codec *codec)
 665 {
 666         wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 667         return 0;
 668 }
 669
 670 static int wm8750_probe(struct snd_soc_codec *codec)
 671 {
 672         struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
 673         int ret;
 674
 675         ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8750->control_type);
 676         if (ret < 0) {
 677                 printk(KERN_ERR "wm8750: failed to set cache I/O: %d\n", ret);
 678                 return ret;
 679         }
 680
 681         ret = wm8750_reset(codec);
 682         if (ret < 0) {
 683                 printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
 684                 return ret;
 685         }
 686
 687         /* charge output caps */
 688         wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 689
 690         /* set the update bits */
 691         snd_soc_update_bits(codec, WM8750_LDAC, 0x0100, 0x0100);
 692         snd_soc_update_bits(codec, WM8750_RDAC, 0x0100, 0x0100);
 693         snd_soc_update_bits(codec, WM8750_LOUT1V, 0x0100, 0x0100);
 694         snd_soc_update_bits(codec, WM8750_ROUT1V, 0x0100, 0x0100);
 695         snd_soc_update_bits(codec, WM8750_LOUT2V, 0x0100, 0x0100);
 696         snd_soc_update_bits(codec, WM8750_ROUT2V, 0x0100, 0x0100);
 697         snd_soc_update_bits(codec, WM8750_LINVOL, 0x0100, 0x0100);
 698         snd_soc_update_bits(codec, WM8750_RINVOL, 0x0100, 0x0100);
 699
 700         return ret;
 701 }
 702
 703 static int wm8750_remove(struct snd_soc_codec *codec)
 704 {
 705         wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
 706         return 0;
 707 }
 708
 709 static struct snd_soc_codec_driver soc_codec_dev_wm8750 = {
 710         .probe =        wm8750_probe,
 711         .remove =       wm8750_remove,
 712         .suspend =      wm8750_suspend,
 713         .resume =       wm8750_resume,
 714         .set_bias_level = wm8750_set_bias_level,
 715         .reg_cache_size = ARRAY_SIZE(wm8750_reg),
 716         .reg_word_size = sizeof(u16),
 717         .reg_cache_default = wm8750_reg,
 718
 719         .controls = wm8750_snd_controls,
 720         .num_controls = ARRAY_SIZE(wm8750_snd_controls),
 721         .dapm_widgets = wm8750_dapm_widgets,
 722         .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
 723         .dapm_routes = wm8750_dapm_routes,
 724         .num_dapm_routes = ARRAY_SIZE(wm8750_dapm_routes),
 725 };
 726
 727 static const struct of_device_id wm8750_of_match[] = {
 728         { .compatible = "wlf,wm8750", },
 729         { .compatible = "wlf,wm8987", },
 730         { }
 731 };
 732 MODULE_DEVICE_TABLE(of, wm8750_of_match);
 733
 734 #if defined(CONFIG_SPI_MASTER)
 735 static int __devinit wm8750_spi_probe(struct spi_device *spi)
 736 {
 737         struct wm8750_priv *wm8750;
 738         int ret;
 739
 740         wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv),
 741                               GFP_KERNEL);
 742         if (wm8750 == NULL)
 743                 return -ENOMEM;
 744
 745         wm8750->control_type = SND_SOC_SPI;
 746         spi_set_drvdata(spi, wm8750);
 747
 748         ret = snd_soc_register_codec(&spi->dev,
 749                         &soc_codec_dev_wm8750, &wm8750_dai, 1);
 750         return ret;
 751 }
 752
 753 static int __devexit wm8750_spi_remove(struct spi_device *spi)
 754 {
 755         snd_soc_unregister_codec(&spi->dev);
 756         return 0;
 757 }
 758
 759 static const struct spi_device_id wm8750_spi_ids[] = {
 760         { "wm8750", 0 },
 761         { "wm8987", 0 },
 762         { },
 763 };
 764 MODULE_DEVICE_TABLE(spi, wm8750_spi_ids);
 765
 766 static struct spi_driver wm8750_spi_driver = {
 767         .driver = {
 768                 .name   = "wm8750",
 769                 .owner  = THIS_MODULE,
 770                 .of_match_table = wm8750_of_match,
 771         },
 772         .id_table       = wm8750_spi_ids,
 773         .probe          = wm8750_spi_probe,
 774         .remove         = __devexit_p(wm8750_spi_remove),
 775 };
 776 #endif /* CONFIG_SPI_MASTER */
 777
 778 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 779 static __devinit int wm8750_i2c_probe(struct i2c_client *i2c,
 780                                       const struct i2c_device_id *id)
 781 {
 782         struct wm8750_priv *wm8750;
 783         int ret;
 784
 785         wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv),
 786                               GFP_KERNEL);
 787         if (wm8750 == NULL)
 788                 return -ENOMEM;
 789
 790         i2c_set_clientdata(i2c, wm8750);
 791         wm8750->control_type = SND_SOC_I2C;
 792
 793         ret =  snd_soc_register_codec(&i2c->dev,
 794                         &soc_codec_dev_wm8750, &wm8750_dai, 1);
 795         return ret;
 796 }
 797
 798 static __devexit int wm8750_i2c_remove(struct i2c_client *client)
 799 {
 800         snd_soc_unregister_codec(&client->dev);
 801         return 0;
 802 }
 803
 804 static const struct i2c_device_id wm8750_i2c_id[] = {
 805         { "wm8750", 0 },
 806         { "wm8987", 0 },
 807         { }
 808 };
 809 MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
 810
 811 static struct i2c_driver wm8750_i2c_driver = {
 812         .driver = {
 813                 .name = "wm8750",
 814                 .owner = THIS_MODULE,
 815                 .of_match_table = wm8750_of_match,
 816         },
 817         .probe =    wm8750_i2c_probe,
 818         .remove =   __devexit_p(wm8750_i2c_remove),
 819         .id_table = wm8750_i2c_id,
 820 };
 821 #endif
 822
 823 static int __init wm8750_modinit(void)
 824 {
 825         int ret = 0;
 826 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 827         ret = i2c_add_driver(&wm8750_i2c_driver);
 828         if (ret != 0) {
 829                 printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n",
 830                        ret);
 831         }
 832 #endif
 833 #if defined(CONFIG_SPI_MASTER)
 834         ret = spi_register_driver(&wm8750_spi_driver);
 835         if (ret != 0) {
 836                 printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n",
 837                        ret);
 838         }
 839 #endif
 840         return ret;
 841 }
 842 module_init(wm8750_modinit);
 843
 844 static void __exit wm8750_exit(void)
 845 {
 846 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 847         i2c_del_driver(&wm8750_i2c_driver);
 848 #endif
 849 #if defined(CONFIG_SPI_MASTER)
 850         spi_unregister_driver(&wm8750_spi_driver);
 851 #endif
 852 }
 853 module_exit(wm8750_exit);
 854
 855 MODULE_DESCRIPTION("ASoC WM8750 driver");
 856 MODULE_AUTHOR("Liam Girdwood");
 857 MODULE_LICENSE("GPL");