Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 1 | /* |
| 2 | * wm8971.c -- WM8971 ALSA SoC Audio driver |
| 3 | * |
| 4 | * Copyright 2005 Lab126, Inc. |
| 5 | * |
| 6 | * Author: Kenneth Kiraly <kiraly@lab126.com> |
| 7 | * |
| 8 | * Based on wm8753.c by Liam Girdwood |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify it |
| 11 | * under the terms of the GNU General Public License as published by the |
| 12 | * Free Software Foundation; either version 2 of the License, or (at your |
| 13 | * option) any later version. |
| 14 | */ |
| 15 | |
| 16 | #include <linux/module.h> |
| 17 | #include <linux/moduleparam.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/delay.h> |
| 20 | #include <linux/pm.h> |
| 21 | #include <linux/i2c.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 22 | #include <linux/slab.h> |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 23 | #include <sound/core.h> |
| 24 | #include <sound/pcm.h> |
| 25 | #include <sound/pcm_params.h> |
| 26 | #include <sound/soc.h> |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 27 | #include <sound/initval.h> |
| 28 | |
| 29 | #include "wm8971.h" |
| 30 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 31 | #define WM8971_REG_COUNT 43 |
| 32 | |
| 33 | static struct workqueue_struct *wm8971_workq = NULL; |
| 34 | |
| 35 | /* codec private data */ |
| 36 | struct wm8971_priv { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 37 | enum snd_soc_control_type control_type; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 38 | unsigned int sysclk; |
| 39 | }; |
| 40 | |
| 41 | /* |
| 42 | * wm8971 register cache |
| 43 | * We can't read the WM8971 register space when we |
| 44 | * are using 2 wire for device control, so we cache them instead. |
| 45 | */ |
| 46 | static const u16 wm8971_reg[] = { |
| 47 | 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */ |
| 48 | 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ |
| 49 | 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */ |
| 50 | 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ |
| 51 | 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ |
| 52 | 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ |
| 53 | 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ |
| 54 | 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ |
| 55 | 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */ |
| 56 | 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */ |
| 57 | 0x0079, 0x0079, 0x0079, /* 40 */ |
| 58 | }; |
| 59 | |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 60 | #define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0) |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 61 | |
| 62 | /* WM8971 Controls */ |
| 63 | static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" }; |
| 64 | static const char *wm8971_bass_filter[] = { "130Hz @ 48kHz", |
| 65 | "200Hz @ 48kHz" }; |
| 66 | static const char *wm8971_treble[] = { "8kHz", "4kHz" }; |
| 67 | static const char *wm8971_alc_func[] = { "Off", "Right", "Left", "Stereo" }; |
| 68 | static const char *wm8971_ng_type[] = { "Constant PGA Gain", |
| 69 | "Mute ADC Output" }; |
| 70 | static const char *wm8971_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; |
| 71 | static const char *wm8971_mono_mux[] = {"Stereo", "Mono (Left)", |
| 72 | "Mono (Right)", "Digital Mono"}; |
| 73 | static const char *wm8971_dac_phase[] = { "Non Inverted", "Inverted" }; |
| 74 | static const char *wm8971_lline_mux[] = {"Line", "NC", "NC", "PGA", |
| 75 | "Differential"}; |
| 76 | static const char *wm8971_rline_mux[] = {"Line", "Mic", "NC", "PGA", |
| 77 | "Differential"}; |
| 78 | static const char *wm8971_lpga_sel[] = {"Line", "NC", "NC", "Differential"}; |
| 79 | static const char *wm8971_rpga_sel[] = {"Line", "Mic", "NC", "Differential"}; |
| 80 | static const char *wm8971_adcpol[] = {"Normal", "L Invert", "R Invert", |
| 81 | "L + R Invert"}; |
| 82 | |
| 83 | static const struct soc_enum wm8971_enum[] = { |
| 84 | SOC_ENUM_SINGLE(WM8971_BASS, 7, 2, wm8971_bass), /* 0 */ |
| 85 | SOC_ENUM_SINGLE(WM8971_BASS, 6, 2, wm8971_bass_filter), |
| 86 | SOC_ENUM_SINGLE(WM8971_TREBLE, 6, 2, wm8971_treble), |
| 87 | SOC_ENUM_SINGLE(WM8971_ALC1, 7, 4, wm8971_alc_func), |
| 88 | SOC_ENUM_SINGLE(WM8971_NGATE, 1, 2, wm8971_ng_type), /* 4 */ |
| 89 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 1, 4, wm8971_deemp), |
| 90 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 4, 4, wm8971_mono_mux), |
| 91 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 1, 2, wm8971_dac_phase), |
| 92 | SOC_ENUM_SINGLE(WM8971_LOUTM1, 0, 5, wm8971_lline_mux), /* 8 */ |
| 93 | SOC_ENUM_SINGLE(WM8971_ROUTM1, 0, 5, wm8971_rline_mux), |
| 94 | SOC_ENUM_SINGLE(WM8971_LADCIN, 6, 4, wm8971_lpga_sel), |
| 95 | SOC_ENUM_SINGLE(WM8971_RADCIN, 6, 4, wm8971_rpga_sel), |
| 96 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 5, 4, wm8971_adcpol), /* 12 */ |
| 97 | SOC_ENUM_SINGLE(WM8971_ADCIN, 6, 4, wm8971_mono_mux), |
| 98 | }; |
| 99 | |
| 100 | static const struct snd_kcontrol_new wm8971_snd_controls[] = { |
| 101 | SOC_DOUBLE_R("Capture Volume", WM8971_LINVOL, WM8971_RINVOL, 0, 63, 0), |
| 102 | SOC_DOUBLE_R("Capture ZC Switch", WM8971_LINVOL, WM8971_RINVOL, |
| 103 | 6, 1, 0), |
| 104 | SOC_DOUBLE_R("Capture Switch", WM8971_LINVOL, WM8971_RINVOL, 7, 1, 1), |
| 105 | |
| 106 | SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8971_LOUT1V, |
| 107 | WM8971_ROUT1V, 7, 1, 0), |
| 108 | SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8971_LOUT2V, |
| 109 | WM8971_ROUT2V, 7, 1, 0), |
| 110 | SOC_SINGLE("Mono Playback ZC Switch", WM8971_MOUTV, 7, 1, 0), |
| 111 | |
| 112 | SOC_DOUBLE_R("PCM Volume", WM8971_LDAC, WM8971_RDAC, 0, 255, 0), |
| 113 | |
| 114 | SOC_DOUBLE_R("Bypass Left Playback Volume", WM8971_LOUTM1, |
| 115 | WM8971_LOUTM2, 4, 7, 1), |
| 116 | SOC_DOUBLE_R("Bypass Right Playback Volume", WM8971_ROUTM1, |
| 117 | WM8971_ROUTM2, 4, 7, 1), |
| 118 | SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8971_MOUTM1, |
| 119 | WM8971_MOUTM2, 4, 7, 1), |
| 120 | |
| 121 | SOC_DOUBLE_R("Headphone Playback Volume", WM8971_LOUT1V, |
| 122 | WM8971_ROUT1V, 0, 127, 0), |
| 123 | SOC_DOUBLE_R("Speaker Playback Volume", WM8971_LOUT2V, |
| 124 | WM8971_ROUT2V, 0, 127, 0), |
| 125 | |
| 126 | SOC_ENUM("Bass Boost", wm8971_enum[0]), |
| 127 | SOC_ENUM("Bass Filter", wm8971_enum[1]), |
| 128 | SOC_SINGLE("Bass Volume", WM8971_BASS, 0, 7, 1), |
| 129 | |
| 130 | SOC_SINGLE("Treble Volume", WM8971_TREBLE, 0, 7, 0), |
| 131 | SOC_ENUM("Treble Cut-off", wm8971_enum[2]), |
| 132 | |
| 133 | SOC_SINGLE("Capture Filter Switch", WM8971_ADCDAC, 0, 1, 1), |
| 134 | |
| 135 | SOC_SINGLE("ALC Target Volume", WM8971_ALC1, 0, 7, 0), |
| 136 | SOC_SINGLE("ALC Max Volume", WM8971_ALC1, 4, 7, 0), |
| 137 | |
| 138 | SOC_SINGLE("ALC Capture Target Volume", WM8971_ALC1, 0, 7, 0), |
| 139 | SOC_SINGLE("ALC Capture Max Volume", WM8971_ALC1, 4, 7, 0), |
| 140 | SOC_ENUM("ALC Capture Function", wm8971_enum[3]), |
| 141 | SOC_SINGLE("ALC Capture ZC Switch", WM8971_ALC2, 7, 1, 0), |
| 142 | SOC_SINGLE("ALC Capture Hold Time", WM8971_ALC2, 0, 15, 0), |
| 143 | SOC_SINGLE("ALC Capture Decay Time", WM8971_ALC3, 4, 15, 0), |
| 144 | SOC_SINGLE("ALC Capture Attack Time", WM8971_ALC3, 0, 15, 0), |
| 145 | SOC_SINGLE("ALC Capture NG Threshold", WM8971_NGATE, 3, 31, 0), |
| 146 | SOC_ENUM("ALC Capture NG Type", wm8971_enum[4]), |
| 147 | SOC_SINGLE("ALC Capture NG Switch", WM8971_NGATE, 0, 1, 0), |
| 148 | |
| 149 | SOC_SINGLE("Capture 6dB Attenuate", WM8971_ADCDAC, 8, 1, 0), |
| 150 | SOC_SINGLE("Playback 6dB Attenuate", WM8971_ADCDAC, 7, 1, 0), |
| 151 | |
| 152 | SOC_ENUM("Playback De-emphasis", wm8971_enum[5]), |
| 153 | SOC_ENUM("Playback Function", wm8971_enum[6]), |
| 154 | SOC_ENUM("Playback Phase", wm8971_enum[7]), |
| 155 | |
| 156 | SOC_DOUBLE_R("Mic Boost", WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0), |
| 157 | }; |
| 158 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 159 | /* |
| 160 | * DAPM Controls |
| 161 | */ |
| 162 | |
| 163 | /* Left Mixer */ |
| 164 | static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = { |
| 165 | SOC_DAPM_SINGLE("Playback Switch", WM8971_LOUTM1, 8, 1, 0), |
| 166 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_LOUTM1, 7, 1, 0), |
| 167 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_LOUTM2, 8, 1, 0), |
| 168 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_LOUTM2, 7, 1, 0), |
| 169 | }; |
| 170 | |
| 171 | /* Right Mixer */ |
| 172 | static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = { |
| 173 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_ROUTM1, 8, 1, 0), |
| 174 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_ROUTM1, 7, 1, 0), |
| 175 | SOC_DAPM_SINGLE("Playback Switch", WM8971_ROUTM2, 8, 1, 0), |
| 176 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_ROUTM2, 7, 1, 0), |
| 177 | }; |
| 178 | |
| 179 | /* Mono Mixer */ |
| 180 | static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = { |
| 181 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_MOUTM1, 8, 1, 0), |
| 182 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_MOUTM1, 7, 1, 0), |
| 183 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_MOUTM2, 8, 1, 0), |
| 184 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_MOUTM2, 7, 1, 0), |
| 185 | }; |
| 186 | |
| 187 | /* Left Line Mux */ |
| 188 | static const struct snd_kcontrol_new wm8971_left_line_controls = |
| 189 | SOC_DAPM_ENUM("Route", wm8971_enum[8]); |
| 190 | |
| 191 | /* Right Line Mux */ |
| 192 | static const struct snd_kcontrol_new wm8971_right_line_controls = |
| 193 | SOC_DAPM_ENUM("Route", wm8971_enum[9]); |
| 194 | |
| 195 | /* Left PGA Mux */ |
| 196 | static const struct snd_kcontrol_new wm8971_left_pga_controls = |
| 197 | SOC_DAPM_ENUM("Route", wm8971_enum[10]); |
| 198 | |
| 199 | /* Right PGA Mux */ |
| 200 | static const struct snd_kcontrol_new wm8971_right_pga_controls = |
| 201 | SOC_DAPM_ENUM("Route", wm8971_enum[11]); |
| 202 | |
| 203 | /* Mono ADC Mux */ |
| 204 | static const struct snd_kcontrol_new wm8971_monomux_controls = |
| 205 | SOC_DAPM_ENUM("Route", wm8971_enum[13]); |
| 206 | |
| 207 | static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = { |
| 208 | SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, |
| 209 | &wm8971_left_mixer_controls[0], |
| 210 | ARRAY_SIZE(wm8971_left_mixer_controls)), |
| 211 | SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, |
| 212 | &wm8971_right_mixer_controls[0], |
| 213 | ARRAY_SIZE(wm8971_right_mixer_controls)), |
| 214 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8971_PWR2, 2, 0, |
| 215 | &wm8971_mono_mixer_controls[0], |
| 216 | ARRAY_SIZE(wm8971_mono_mixer_controls)), |
| 217 | |
| 218 | SND_SOC_DAPM_PGA("Right Out 2", WM8971_PWR2, 3, 0, NULL, 0), |
| 219 | SND_SOC_DAPM_PGA("Left Out 2", WM8971_PWR2, 4, 0, NULL, 0), |
| 220 | SND_SOC_DAPM_PGA("Right Out 1", WM8971_PWR2, 5, 0, NULL, 0), |
| 221 | SND_SOC_DAPM_PGA("Left Out 1", WM8971_PWR2, 6, 0, NULL, 0), |
| 222 | SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8971_PWR2, 7, 0), |
| 223 | SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8971_PWR2, 8, 0), |
| 224 | SND_SOC_DAPM_PGA("Mono Out 1", WM8971_PWR2, 2, 0, NULL, 0), |
| 225 | |
Mark Brown | 7d6f6b0 | 2011-10-27 09:46:53 +0200 | [diff] [blame] | 226 | SND_SOC_DAPM_SUPPLY("Mic Bias", WM8971_PWR1, 1, 0, NULL, 0), |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 227 | SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8971_PWR1, 2, 0), |
| 228 | SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8971_PWR1, 3, 0), |
| 229 | |
| 230 | SND_SOC_DAPM_MUX("Left PGA Mux", WM8971_PWR1, 5, 0, |
| 231 | &wm8971_left_pga_controls), |
| 232 | SND_SOC_DAPM_MUX("Right PGA Mux", WM8971_PWR1, 4, 0, |
| 233 | &wm8971_right_pga_controls), |
| 234 | SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, |
| 235 | &wm8971_left_line_controls), |
| 236 | SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, |
| 237 | &wm8971_right_line_controls), |
| 238 | |
| 239 | SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, |
| 240 | &wm8971_monomux_controls), |
| 241 | SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, |
| 242 | &wm8971_monomux_controls), |
| 243 | |
| 244 | SND_SOC_DAPM_OUTPUT("LOUT1"), |
| 245 | SND_SOC_DAPM_OUTPUT("ROUT1"), |
| 246 | SND_SOC_DAPM_OUTPUT("LOUT2"), |
| 247 | SND_SOC_DAPM_OUTPUT("ROUT2"), |
| 248 | SND_SOC_DAPM_OUTPUT("MONO"), |
| 249 | |
| 250 | SND_SOC_DAPM_INPUT("LINPUT1"), |
| 251 | SND_SOC_DAPM_INPUT("RINPUT1"), |
| 252 | SND_SOC_DAPM_INPUT("MIC"), |
| 253 | }; |
| 254 | |
Mark Brown | c485064 | 2011-12-29 11:03:08 +0000 | [diff] [blame] | 255 | static const struct snd_soc_dapm_route wm8971_dapm_routes[] = { |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 256 | /* left mixer */ |
| 257 | {"Left Mixer", "Playback Switch", "Left DAC"}, |
| 258 | {"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, |
| 259 | {"Left Mixer", "Right Playback Switch", "Right DAC"}, |
| 260 | {"Left Mixer", "Right Bypass Switch", "Right Line Mux"}, |
| 261 | |
| 262 | /* right mixer */ |
| 263 | {"Right Mixer", "Left Playback Switch", "Left DAC"}, |
| 264 | {"Right Mixer", "Left Bypass Switch", "Left Line Mux"}, |
| 265 | {"Right Mixer", "Playback Switch", "Right DAC"}, |
| 266 | {"Right Mixer", "Right Bypass Switch", "Right Line Mux"}, |
| 267 | |
| 268 | /* left out 1 */ |
| 269 | {"Left Out 1", NULL, "Left Mixer"}, |
| 270 | {"LOUT1", NULL, "Left Out 1"}, |
| 271 | |
| 272 | /* left out 2 */ |
| 273 | {"Left Out 2", NULL, "Left Mixer"}, |
| 274 | {"LOUT2", NULL, "Left Out 2"}, |
| 275 | |
| 276 | /* right out 1 */ |
| 277 | {"Right Out 1", NULL, "Right Mixer"}, |
| 278 | {"ROUT1", NULL, "Right Out 1"}, |
| 279 | |
| 280 | /* right out 2 */ |
| 281 | {"Right Out 2", NULL, "Right Mixer"}, |
| 282 | {"ROUT2", NULL, "Right Out 2"}, |
| 283 | |
| 284 | /* mono mixer */ |
| 285 | {"Mono Mixer", "Left Playback Switch", "Left DAC"}, |
| 286 | {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"}, |
| 287 | {"Mono Mixer", "Right Playback Switch", "Right DAC"}, |
| 288 | {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"}, |
| 289 | |
| 290 | /* mono out */ |
| 291 | {"Mono Out", NULL, "Mono Mixer"}, |
| 292 | {"MONO1", NULL, "Mono Out"}, |
| 293 | |
| 294 | /* Left Line Mux */ |
| 295 | {"Left Line Mux", "Line", "LINPUT1"}, |
| 296 | {"Left Line Mux", "PGA", "Left PGA Mux"}, |
| 297 | {"Left Line Mux", "Differential", "Differential Mux"}, |
| 298 | |
| 299 | /* Right Line Mux */ |
| 300 | {"Right Line Mux", "Line", "RINPUT1"}, |
| 301 | {"Right Line Mux", "Mic", "MIC"}, |
| 302 | {"Right Line Mux", "PGA", "Right PGA Mux"}, |
| 303 | {"Right Line Mux", "Differential", "Differential Mux"}, |
| 304 | |
| 305 | /* Left PGA Mux */ |
| 306 | {"Left PGA Mux", "Line", "LINPUT1"}, |
| 307 | {"Left PGA Mux", "Differential", "Differential Mux"}, |
| 308 | |
| 309 | /* Right PGA Mux */ |
| 310 | {"Right PGA Mux", "Line", "RINPUT1"}, |
| 311 | {"Right PGA Mux", "Differential", "Differential Mux"}, |
| 312 | |
| 313 | /* Differential Mux */ |
| 314 | {"Differential Mux", "Line", "LINPUT1"}, |
| 315 | {"Differential Mux", "Line", "RINPUT1"}, |
| 316 | |
| 317 | /* Left ADC Mux */ |
| 318 | {"Left ADC Mux", "Stereo", "Left PGA Mux"}, |
| 319 | {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"}, |
| 320 | {"Left ADC Mux", "Digital Mono", "Left PGA Mux"}, |
| 321 | |
| 322 | /* Right ADC Mux */ |
| 323 | {"Right ADC Mux", "Stereo", "Right PGA Mux"}, |
| 324 | {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"}, |
| 325 | {"Right ADC Mux", "Digital Mono", "Right PGA Mux"}, |
| 326 | |
| 327 | /* ADC */ |
| 328 | {"Left ADC", NULL, "Left ADC Mux"}, |
| 329 | {"Right ADC", NULL, "Right ADC Mux"}, |
| 330 | }; |
| 331 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 332 | struct _coeff_div { |
| 333 | u32 mclk; |
| 334 | u32 rate; |
| 335 | u16 fs; |
| 336 | u8 sr:5; |
| 337 | u8 usb:1; |
| 338 | }; |
| 339 | |
| 340 | /* codec hifi mclk clock divider coefficients */ |
| 341 | static const struct _coeff_div coeff_div[] = { |
| 342 | /* 8k */ |
| 343 | {12288000, 8000, 1536, 0x6, 0x0}, |
| 344 | {11289600, 8000, 1408, 0x16, 0x0}, |
| 345 | {18432000, 8000, 2304, 0x7, 0x0}, |
| 346 | {16934400, 8000, 2112, 0x17, 0x0}, |
| 347 | {12000000, 8000, 1500, 0x6, 0x1}, |
| 348 | |
| 349 | /* 11.025k */ |
| 350 | {11289600, 11025, 1024, 0x18, 0x0}, |
| 351 | {16934400, 11025, 1536, 0x19, 0x0}, |
| 352 | {12000000, 11025, 1088, 0x19, 0x1}, |
| 353 | |
| 354 | /* 16k */ |
| 355 | {12288000, 16000, 768, 0xa, 0x0}, |
| 356 | {18432000, 16000, 1152, 0xb, 0x0}, |
| 357 | {12000000, 16000, 750, 0xa, 0x1}, |
| 358 | |
| 359 | /* 22.05k */ |
| 360 | {11289600, 22050, 512, 0x1a, 0x0}, |
| 361 | {16934400, 22050, 768, 0x1b, 0x0}, |
| 362 | {12000000, 22050, 544, 0x1b, 0x1}, |
| 363 | |
| 364 | /* 32k */ |
| 365 | {12288000, 32000, 384, 0xc, 0x0}, |
| 366 | {18432000, 32000, 576, 0xd, 0x0}, |
| 367 | {12000000, 32000, 375, 0xa, 0x1}, |
| 368 | |
| 369 | /* 44.1k */ |
| 370 | {11289600, 44100, 256, 0x10, 0x0}, |
| 371 | {16934400, 44100, 384, 0x11, 0x0}, |
| 372 | {12000000, 44100, 272, 0x11, 0x1}, |
| 373 | |
| 374 | /* 48k */ |
| 375 | {12288000, 48000, 256, 0x0, 0x0}, |
| 376 | {18432000, 48000, 384, 0x1, 0x0}, |
| 377 | {12000000, 48000, 250, 0x0, 0x1}, |
| 378 | |
| 379 | /* 88.2k */ |
| 380 | {11289600, 88200, 128, 0x1e, 0x0}, |
| 381 | {16934400, 88200, 192, 0x1f, 0x0}, |
| 382 | {12000000, 88200, 136, 0x1f, 0x1}, |
| 383 | |
| 384 | /* 96k */ |
| 385 | {12288000, 96000, 128, 0xe, 0x0}, |
| 386 | {18432000, 96000, 192, 0xf, 0x0}, |
| 387 | {12000000, 96000, 125, 0xe, 0x1}, |
| 388 | }; |
| 389 | |
| 390 | static int get_coeff(int mclk, int rate) |
| 391 | { |
| 392 | int i; |
| 393 | |
| 394 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| 395 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) |
| 396 | return i; |
| 397 | } |
| 398 | return -EINVAL; |
| 399 | } |
| 400 | |
| 401 | static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
| 402 | int clk_id, unsigned int freq, int dir) |
| 403 | { |
| 404 | struct snd_soc_codec *codec = codec_dai->codec; |
Mark Brown | b2c812e | 2010-04-14 15:35:19 +0900 | [diff] [blame] | 405 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 406 | |
| 407 | switch (freq) { |
| 408 | case 11289600: |
| 409 | case 12000000: |
| 410 | case 12288000: |
| 411 | case 16934400: |
| 412 | case 18432000: |
| 413 | wm8971->sysclk = freq; |
| 414 | return 0; |
| 415 | } |
| 416 | return -EINVAL; |
| 417 | } |
| 418 | |
| 419 | static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| 420 | unsigned int fmt) |
| 421 | { |
| 422 | struct snd_soc_codec *codec = codec_dai->codec; |
| 423 | u16 iface = 0; |
| 424 | |
| 425 | /* set master/slave audio interface */ |
| 426 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 427 | case SND_SOC_DAIFMT_CBM_CFM: |
| 428 | iface = 0x0040; |
| 429 | break; |
| 430 | case SND_SOC_DAIFMT_CBS_CFS: |
| 431 | break; |
| 432 | default: |
| 433 | return -EINVAL; |
| 434 | } |
| 435 | |
| 436 | /* interface format */ |
| 437 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 438 | case SND_SOC_DAIFMT_I2S: |
| 439 | iface |= 0x0002; |
| 440 | break; |
| 441 | case SND_SOC_DAIFMT_RIGHT_J: |
| 442 | break; |
| 443 | case SND_SOC_DAIFMT_LEFT_J: |
| 444 | iface |= 0x0001; |
| 445 | break; |
| 446 | case SND_SOC_DAIFMT_DSP_A: |
| 447 | iface |= 0x0003; |
| 448 | break; |
| 449 | case SND_SOC_DAIFMT_DSP_B: |
| 450 | iface |= 0x0013; |
| 451 | break; |
| 452 | default: |
| 453 | return -EINVAL; |
| 454 | } |
| 455 | |
| 456 | /* clock inversion */ |
| 457 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 458 | case SND_SOC_DAIFMT_NB_NF: |
| 459 | break; |
| 460 | case SND_SOC_DAIFMT_IB_IF: |
| 461 | iface |= 0x0090; |
| 462 | break; |
| 463 | case SND_SOC_DAIFMT_IB_NF: |
| 464 | iface |= 0x0080; |
| 465 | break; |
| 466 | case SND_SOC_DAIFMT_NB_IF: |
| 467 | iface |= 0x0010; |
| 468 | break; |
| 469 | default: |
| 470 | return -EINVAL; |
| 471 | } |
| 472 | |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 473 | snd_soc_write(codec, WM8971_IFACE, iface); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 474 | return 0; |
| 475 | } |
| 476 | |
| 477 | static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 478 | struct snd_pcm_hw_params *params, |
| 479 | struct snd_soc_dai *dai) |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 480 | { |
Mark Brown | e6968a1 | 2012-04-04 15:58:16 +0100 | [diff] [blame] | 481 | struct snd_soc_codec *codec = dai->codec; |
Mark Brown | b2c812e | 2010-04-14 15:35:19 +0900 | [diff] [blame] | 482 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 483 | u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3; |
| 484 | u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 485 | int coeff = get_coeff(wm8971->sysclk, params_rate(params)); |
| 486 | |
| 487 | /* bit size */ |
| 488 | switch (params_format(params)) { |
| 489 | case SNDRV_PCM_FORMAT_S16_LE: |
| 490 | break; |
| 491 | case SNDRV_PCM_FORMAT_S20_3LE: |
| 492 | iface |= 0x0004; |
| 493 | break; |
| 494 | case SNDRV_PCM_FORMAT_S24_LE: |
| 495 | iface |= 0x0008; |
| 496 | break; |
| 497 | case SNDRV_PCM_FORMAT_S32_LE: |
| 498 | iface |= 0x000c; |
| 499 | break; |
| 500 | } |
| 501 | |
| 502 | /* set iface & srate */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 503 | snd_soc_write(codec, WM8971_IFACE, iface); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 504 | if (coeff >= 0) |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 505 | snd_soc_write(codec, WM8971_SRATE, srate | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 506 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); |
| 507 | |
| 508 | return 0; |
| 509 | } |
| 510 | |
| 511 | static int wm8971_mute(struct snd_soc_dai *dai, int mute) |
| 512 | { |
| 513 | struct snd_soc_codec *codec = dai->codec; |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 514 | u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 515 | |
| 516 | if (mute) |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 517 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 518 | else |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 519 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 520 | return 0; |
| 521 | } |
| 522 | |
| 523 | static int wm8971_set_bias_level(struct snd_soc_codec *codec, |
| 524 | enum snd_soc_bias_level level) |
| 525 | { |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 526 | u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 527 | |
| 528 | switch (level) { |
| 529 | case SND_SOC_BIAS_ON: |
| 530 | /* set vmid to 50k and unmute dac */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 531 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 532 | break; |
| 533 | case SND_SOC_BIAS_PREPARE: |
| 534 | break; |
| 535 | case SND_SOC_BIAS_STANDBY: |
Axel Lin | e46199e | 2011-10-07 21:52:00 +0800 | [diff] [blame] | 536 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) |
| 537 | snd_soc_cache_sync(codec); |
| 538 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 539 | /* mute dac and set vmid to 500k, enable VREF */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 540 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 541 | break; |
| 542 | case SND_SOC_BIAS_OFF: |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 543 | snd_soc_write(codec, WM8971_PWR1, 0x0001); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 544 | break; |
| 545 | } |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 546 | codec->dapm.bias_level = level; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 547 | return 0; |
| 548 | } |
| 549 | |
| 550 | #define WM8971_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
| 551 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ |
| 552 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) |
| 553 | |
| 554 | #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
| 555 | SNDRV_PCM_FMTBIT_S24_LE) |
| 556 | |
Lars-Peter Clausen | 85e7652 | 2011-11-23 11:40:40 +0100 | [diff] [blame] | 557 | static const struct snd_soc_dai_ops wm8971_dai_ops = { |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 558 | .hw_params = wm8971_pcm_hw_params, |
| 559 | .digital_mute = wm8971_mute, |
| 560 | .set_fmt = wm8971_set_dai_fmt, |
| 561 | .set_sysclk = wm8971_set_dai_sysclk, |
| 562 | }; |
| 563 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 564 | static struct snd_soc_dai_driver wm8971_dai = { |
| 565 | .name = "wm8971-hifi", |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 566 | .playback = { |
| 567 | .stream_name = "Playback", |
| 568 | .channels_min = 1, |
| 569 | .channels_max = 2, |
| 570 | .rates = WM8971_RATES, |
| 571 | .formats = WM8971_FORMATS,}, |
| 572 | .capture = { |
| 573 | .stream_name = "Capture", |
| 574 | .channels_min = 1, |
| 575 | .channels_max = 2, |
| 576 | .rates = WM8971_RATES, |
| 577 | .formats = WM8971_FORMATS,}, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 578 | .ops = &wm8971_dai_ops, |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 579 | }; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 580 | |
| 581 | static void wm8971_work(struct work_struct *work) |
| 582 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 583 | struct snd_soc_dapm_context *dapm = |
| 584 | container_of(work, struct snd_soc_dapm_context, |
| 585 | delayed_work.work); |
| 586 | struct snd_soc_codec *codec = dapm->codec; |
| 587 | wm8971_set_bias_level(codec, codec->dapm.bias_level); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 588 | } |
| 589 | |
Lars-Peter Clausen | 84b315e | 2011-12-02 10:18:28 +0100 | [diff] [blame] | 590 | static int wm8971_suspend(struct snd_soc_codec *codec) |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 591 | { |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 592 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| 593 | return 0; |
| 594 | } |
| 595 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 596 | static int wm8971_resume(struct snd_soc_codec *codec) |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 597 | { |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 598 | u16 reg; |
| 599 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 600 | wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| 601 | |
| 602 | /* charge wm8971 caps */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 603 | if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 604 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
| 605 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 606 | codec->dapm.bias_level = SND_SOC_BIAS_ON; |
| 607 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 608 | msecs_to_jiffies(1000)); |
| 609 | } |
| 610 | |
| 611 | return 0; |
| 612 | } |
| 613 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 614 | static int wm8971_probe(struct snd_soc_codec *codec) |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 615 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 616 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
| 617 | int ret = 0; |
| 618 | u16 reg; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 619 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 620 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8971->control_type); |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 621 | if (ret < 0) { |
| 622 | printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 623 | return ret; |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 624 | } |
| 625 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 626 | INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 627 | wm8971_workq = create_workqueue("wm8971"); |
| 628 | if (wm8971_workq == NULL) |
| 629 | return -ENOMEM; |
| 630 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 631 | wm8971_reset(codec); |
| 632 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 633 | /* charge output caps - set vmid to 5k for quick power up */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 634 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
| 635 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 636 | codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; |
| 637 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 638 | msecs_to_jiffies(1000)); |
| 639 | |
| 640 | /* set the update bits */ |
Axel Lin | c6d4341 | 2011-10-04 09:58:28 +0800 | [diff] [blame] | 641 | snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100); |
| 642 | snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100); |
| 643 | snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100); |
| 644 | snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100); |
| 645 | snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100); |
| 646 | snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100); |
| 647 | snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100); |
| 648 | snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 649 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 650 | return ret; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 651 | } |
| 652 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 653 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 654 | /* power down chip */ |
| 655 | static int wm8971_remove(struct snd_soc_codec *codec) |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 656 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 657 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| 658 | |
| 659 | if (wm8971_workq) |
| 660 | destroy_workqueue(wm8971_workq); |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { |
| 665 | .probe = wm8971_probe, |
| 666 | .remove = wm8971_remove, |
| 667 | .suspend = wm8971_suspend, |
| 668 | .resume = wm8971_resume, |
| 669 | .set_bias_level = wm8971_set_bias_level, |
| 670 | .reg_cache_size = ARRAY_SIZE(wm8971_reg), |
| 671 | .reg_word_size = sizeof(u16), |
| 672 | .reg_cache_default = wm8971_reg, |
Mark Brown | c485064 | 2011-12-29 11:03:08 +0000 | [diff] [blame] | 673 | |
| 674 | .controls = wm8971_snd_controls, |
| 675 | .num_controls = ARRAY_SIZE(wm8971_snd_controls), |
| 676 | .dapm_widgets = wm8971_dapm_widgets, |
| 677 | .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets), |
| 678 | .dapm_routes = wm8971_dapm_routes, |
| 679 | .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes), |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 680 | }; |
| 681 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 682 | static __devinit int wm8971_i2c_probe(struct i2c_client *i2c, |
| 683 | const struct i2c_device_id *id) |
| 684 | { |
| 685 | struct wm8971_priv *wm8971; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 686 | int ret; |
| 687 | |
Mark Brown | 028b0a0 | 2011-12-29 11:04:04 +0000 | [diff] [blame] | 688 | wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv), |
| 689 | GFP_KERNEL); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 690 | if (wm8971 == NULL) |
| 691 | return -ENOMEM; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 692 | |
Lars-Peter Clausen | 7f984b5 | 2010-12-28 21:08:57 +0100 | [diff] [blame] | 693 | wm8971->control_type = SND_SOC_I2C; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 694 | i2c_set_clientdata(i2c, wm8971); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 695 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 696 | ret = snd_soc_register_codec(&i2c->dev, |
| 697 | &soc_codec_dev_wm8971, &wm8971_dai, 1); |
Mark Brown | 028b0a0 | 2011-12-29 11:04:04 +0000 | [diff] [blame] | 698 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 699 | return ret; |
| 700 | } |
| 701 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 702 | static __devexit int wm8971_i2c_remove(struct i2c_client *client) |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 703 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 704 | snd_soc_unregister_codec(&client->dev); |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 705 | return 0; |
| 706 | } |
| 707 | |
| 708 | static const struct i2c_device_id wm8971_i2c_id[] = { |
| 709 | { "wm8971", 0 }, |
| 710 | { } |
| 711 | }; |
| 712 | MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); |
| 713 | |
| 714 | static struct i2c_driver wm8971_i2c_driver = { |
| 715 | .driver = { |
Mark Brown | 091edcc | 2011-12-02 22:08:49 +0000 | [diff] [blame] | 716 | .name = "wm8971", |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 717 | .owner = THIS_MODULE, |
| 718 | }, |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 719 | .probe = wm8971_i2c_probe, |
| 720 | .remove = __devexit_p(wm8971_i2c_remove), |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 721 | .id_table = wm8971_i2c_id, |
| 722 | }; |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 723 | |
Sachin Kamat | 28285b9 | 2012-08-06 17:25:47 +0530 | [diff] [blame] | 724 | module_i2c_driver(wm8971_i2c_driver); |
Mark Brown | 64089b8 | 2008-12-08 19:17:58 +0000 | [diff] [blame] | 725 | |
Kenneth Kiraly | 8bae3e2 | 2008-09-10 19:33:32 +0100 | [diff] [blame] | 726 | MODULE_DESCRIPTION("ASoC WM8971 driver"); |
| 727 | MODULE_AUTHOR("Lab126"); |
| 728 | MODULE_LICENSE("GPL"); |