Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 1 | /* |
| 2 | * wm8711.c -- WM8711 ALSA SoC Audio driver |
| 3 | * |
| 4 | * Copyright 2006 Wolfson Microelectronics |
| 5 | * |
| 6 | * Author: Mike Arthur <linux@wolfsonmicro.com> |
| 7 | * |
| 8 | * Based on wm8731.c by Richard Purdie |
| 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/platform_device.h> |
Takashi Iwai | bb26276 | 2009-10-01 07:39:45 +0200 | [diff] [blame] | 22 | #include <linux/spi/spi.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 23 | #include <linux/slab.h> |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 24 | #include <sound/core.h> |
| 25 | #include <sound/pcm.h> |
| 26 | #include <sound/pcm_params.h> |
| 27 | #include <sound/soc.h> |
| 28 | #include <sound/soc-dapm.h> |
Mark Brown | b5ab887 | 2009-08-18 21:29:31 +0100 | [diff] [blame] | 29 | #include <sound/tlv.h> |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 30 | #include <sound/initval.h> |
| 31 | |
| 32 | #include "wm8711.h" |
| 33 | |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 34 | /* codec private data */ |
| 35 | struct wm8711_priv { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 36 | enum snd_soc_control_type bus_type; |
| 37 | void *control_data; |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 38 | u16 reg_cache[WM8711_CACHEREGNUM]; |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 39 | unsigned int sysclk; |
| 40 | }; |
| 41 | |
| 42 | /* |
| 43 | * wm8711 register cache |
| 44 | * We can't read the WM8711 register space when we are |
| 45 | * using 2 wire for device control, so we cache them instead. |
| 46 | * There is no point in caching the reset register |
| 47 | */ |
| 48 | static const u16 wm8711_reg[WM8711_CACHEREGNUM] = { |
| 49 | 0x0079, 0x0079, 0x000a, 0x0008, |
| 50 | 0x009f, 0x000a, 0x0000, 0x0000 |
| 51 | }; |
| 52 | |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 53 | #define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0) |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 54 | |
Mark Brown | b5ab887 | 2009-08-18 21:29:31 +0100 | [diff] [blame] | 55 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); |
| 56 | |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 57 | static const struct snd_kcontrol_new wm8711_snd_controls[] = { |
| 58 | |
Mark Brown | b5ab887 | 2009-08-18 21:29:31 +0100 | [diff] [blame] | 59 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V, |
| 60 | 0, 127, 0, out_tlv), |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 61 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V, |
| 62 | 7, 1, 0), |
| 63 | |
| 64 | }; |
| 65 | |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 66 | /* Output Mixer */ |
| 67 | static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = { |
| 68 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0), |
| 69 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0), |
| 70 | }; |
| 71 | |
| 72 | static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = { |
| 73 | SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1, |
| 74 | &wm8711_output_mixer_controls[0], |
| 75 | ARRAY_SIZE(wm8711_output_mixer_controls)), |
| 76 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1), |
| 77 | SND_SOC_DAPM_OUTPUT("LOUT"), |
| 78 | SND_SOC_DAPM_OUTPUT("LHPOUT"), |
| 79 | SND_SOC_DAPM_OUTPUT("ROUT"), |
| 80 | SND_SOC_DAPM_OUTPUT("RHPOUT"), |
| 81 | }; |
| 82 | |
| 83 | static const struct snd_soc_dapm_route intercon[] = { |
| 84 | /* output mixer */ |
| 85 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, |
| 86 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, |
| 87 | |
| 88 | /* outputs */ |
| 89 | {"RHPOUT", NULL, "Output Mixer"}, |
| 90 | {"ROUT", NULL, "Output Mixer"}, |
| 91 | {"LHPOUT", NULL, "Output Mixer"}, |
| 92 | {"LOUT", NULL, "Output Mixer"}, |
| 93 | }; |
| 94 | |
| 95 | static int wm8711_add_widgets(struct snd_soc_codec *codec) |
| 96 | { |
| 97 | snd_soc_dapm_new_controls(codec, wm8711_dapm_widgets, |
| 98 | ARRAY_SIZE(wm8711_dapm_widgets)); |
| 99 | |
| 100 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); |
| 101 | |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 102 | return 0; |
| 103 | } |
| 104 | |
| 105 | struct _coeff_div { |
| 106 | u32 mclk; |
| 107 | u32 rate; |
| 108 | u16 fs; |
| 109 | u8 sr:4; |
| 110 | u8 bosr:1; |
| 111 | u8 usb:1; |
| 112 | }; |
| 113 | |
| 114 | /* codec mclk clock divider coefficients */ |
| 115 | static const struct _coeff_div coeff_div[] = { |
| 116 | /* 48k */ |
| 117 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, |
| 118 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, |
| 119 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, |
| 120 | |
| 121 | /* 32k */ |
| 122 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, |
| 123 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, |
| 124 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
| 125 | |
| 126 | /* 8k */ |
| 127 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, |
| 128 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, |
| 129 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, |
| 130 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, |
| 131 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, |
| 132 | |
| 133 | /* 96k */ |
| 134 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, |
| 135 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, |
| 136 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, |
| 137 | |
| 138 | /* 44.1k */ |
| 139 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, |
| 140 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, |
| 141 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, |
| 142 | |
| 143 | /* 88.2k */ |
| 144 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, |
| 145 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, |
| 146 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, |
| 147 | }; |
| 148 | |
| 149 | static inline int get_coeff(int mclk, int rate) |
| 150 | { |
| 151 | int i; |
| 152 | |
| 153 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| 154 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) |
| 155 | return i; |
| 156 | } |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | static int wm8711_hw_params(struct snd_pcm_substream *substream, |
| 161 | struct snd_pcm_hw_params *params, |
| 162 | struct snd_soc_dai *dai) |
| 163 | { |
| 164 | struct snd_soc_codec *codec = dai->codec; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 165 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 166 | u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc; |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 167 | int i = get_coeff(wm8711->sysclk, params_rate(params)); |
| 168 | u16 srate = (coeff_div[i].sr << 2) | |
| 169 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; |
| 170 | |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 171 | snd_soc_write(codec, WM8711_SRATE, srate); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 172 | |
| 173 | /* bit size */ |
| 174 | switch (params_format(params)) { |
| 175 | case SNDRV_PCM_FORMAT_S16_LE: |
| 176 | break; |
| 177 | case SNDRV_PCM_FORMAT_S20_3LE: |
| 178 | iface |= 0x0004; |
| 179 | break; |
| 180 | case SNDRV_PCM_FORMAT_S24_LE: |
| 181 | iface |= 0x0008; |
| 182 | break; |
| 183 | } |
| 184 | |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 185 | snd_soc_write(codec, WM8711_IFACE, iface); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | static int wm8711_pcm_prepare(struct snd_pcm_substream *substream, |
| 190 | struct snd_soc_dai *dai) |
| 191 | { |
| 192 | struct snd_soc_codec *codec = dai->codec; |
| 193 | |
| 194 | /* set active */ |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 195 | snd_soc_write(codec, WM8711_ACTIVE, 0x0001); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 196 | |
| 197 | return 0; |
| 198 | } |
| 199 | |
| 200 | static void wm8711_shutdown(struct snd_pcm_substream *substream, |
| 201 | struct snd_soc_dai *dai) |
| 202 | { |
| 203 | struct snd_soc_codec *codec = dai->codec; |
| 204 | |
| 205 | /* deactivate */ |
| 206 | if (!codec->active) { |
| 207 | udelay(50); |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 208 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 209 | } |
| 210 | } |
| 211 | |
| 212 | static int wm8711_mute(struct snd_soc_dai *dai, int mute) |
| 213 | { |
| 214 | struct snd_soc_codec *codec = dai->codec; |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 215 | u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7; |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 216 | |
| 217 | if (mute) |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 218 | snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 219 | else |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 220 | snd_soc_write(codec, WM8711_APDIGI, mute_reg); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 221 | |
| 222 | return 0; |
| 223 | } |
| 224 | |
| 225 | static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
| 226 | int clk_id, unsigned int freq, int dir) |
| 227 | { |
| 228 | struct snd_soc_codec *codec = codec_dai->codec; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 229 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 230 | |
| 231 | switch (freq) { |
| 232 | case 11289600: |
| 233 | case 12000000: |
| 234 | case 12288000: |
| 235 | case 16934400: |
| 236 | case 18432000: |
| 237 | wm8711->sysclk = freq; |
| 238 | return 0; |
| 239 | } |
| 240 | return -EINVAL; |
| 241 | } |
| 242 | |
| 243 | static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| 244 | unsigned int fmt) |
| 245 | { |
| 246 | struct snd_soc_codec *codec = codec_dai->codec; |
| 247 | u16 iface = 0; |
| 248 | |
| 249 | /* set master/slave audio interface */ |
| 250 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 251 | case SND_SOC_DAIFMT_CBM_CFM: |
| 252 | iface |= 0x0040; |
| 253 | break; |
| 254 | case SND_SOC_DAIFMT_CBS_CFS: |
| 255 | break; |
| 256 | default: |
| 257 | return -EINVAL; |
| 258 | } |
| 259 | |
| 260 | /* interface format */ |
| 261 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 262 | case SND_SOC_DAIFMT_I2S: |
| 263 | iface |= 0x0002; |
| 264 | break; |
| 265 | case SND_SOC_DAIFMT_RIGHT_J: |
| 266 | break; |
| 267 | case SND_SOC_DAIFMT_LEFT_J: |
| 268 | iface |= 0x0001; |
| 269 | break; |
| 270 | case SND_SOC_DAIFMT_DSP_A: |
| 271 | iface |= 0x0003; |
| 272 | break; |
| 273 | case SND_SOC_DAIFMT_DSP_B: |
| 274 | iface |= 0x0013; |
| 275 | break; |
| 276 | default: |
| 277 | return -EINVAL; |
| 278 | } |
| 279 | |
| 280 | /* clock inversion */ |
| 281 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 282 | case SND_SOC_DAIFMT_NB_NF: |
| 283 | break; |
| 284 | case SND_SOC_DAIFMT_IB_IF: |
| 285 | iface |= 0x0090; |
| 286 | break; |
| 287 | case SND_SOC_DAIFMT_IB_NF: |
| 288 | iface |= 0x0080; |
| 289 | break; |
| 290 | case SND_SOC_DAIFMT_NB_IF: |
| 291 | iface |= 0x0010; |
| 292 | break; |
| 293 | default: |
| 294 | return -EINVAL; |
| 295 | } |
| 296 | |
| 297 | /* set iface */ |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 298 | snd_soc_write(codec, WM8711_IFACE, iface); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | |
| 303 | static int wm8711_set_bias_level(struct snd_soc_codec *codec, |
| 304 | enum snd_soc_bias_level level) |
| 305 | { |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 306 | u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f; |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 307 | |
| 308 | switch (level) { |
| 309 | case SND_SOC_BIAS_ON: |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 310 | snd_soc_write(codec, WM8711_PWR, reg); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 311 | break; |
| 312 | case SND_SOC_BIAS_PREPARE: |
| 313 | break; |
| 314 | case SND_SOC_BIAS_STANDBY: |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 315 | snd_soc_write(codec, WM8711_PWR, reg | 0x0040); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 316 | break; |
| 317 | case SND_SOC_BIAS_OFF: |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 318 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
| 319 | snd_soc_write(codec, WM8711_PWR, 0xffff); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 320 | break; |
| 321 | } |
| 322 | codec->bias_level = level; |
| 323 | return 0; |
| 324 | } |
| 325 | |
Mark Brown | 431f777 | 2009-08-18 21:17:34 +0100 | [diff] [blame] | 326 | #define WM8711_RATES SNDRV_PCM_RATE_8000_96000 |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 327 | |
| 328 | #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
| 329 | SNDRV_PCM_FMTBIT_S24_LE) |
| 330 | |
| 331 | static struct snd_soc_dai_ops wm8711_ops = { |
| 332 | .prepare = wm8711_pcm_prepare, |
| 333 | .hw_params = wm8711_hw_params, |
| 334 | .shutdown = wm8711_shutdown, |
| 335 | .digital_mute = wm8711_mute, |
| 336 | .set_sysclk = wm8711_set_dai_sysclk, |
| 337 | .set_fmt = wm8711_set_dai_fmt, |
| 338 | }; |
| 339 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 340 | static struct snd_soc_dai_driver wm8711_dai = { |
| 341 | .name = "wm8711-hifi", |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 342 | .playback = { |
| 343 | .stream_name = "Playback", |
| 344 | .channels_min = 1, |
| 345 | .channels_max = 2, |
| 346 | .rates = WM8711_RATES, |
Mark Brown | 431f777 | 2009-08-18 21:17:34 +0100 | [diff] [blame] | 347 | .formats = WM8711_FORMATS, |
| 348 | }, |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 349 | .ops = &wm8711_ops, |
| 350 | }; |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 351 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 352 | static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state) |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 353 | { |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 354 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 355 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| 356 | return 0; |
| 357 | } |
| 358 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 359 | static int wm8711_resume(struct snd_soc_codec *codec) |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 360 | { |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 361 | int i; |
| 362 | u8 data[2]; |
| 363 | u16 *cache = codec->reg_cache; |
| 364 | |
| 365 | /* Sync reg_cache with the hardware */ |
| 366 | for (i = 0; i < ARRAY_SIZE(wm8711_reg); i++) { |
| 367 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); |
| 368 | data[1] = cache[i] & 0x00ff; |
| 369 | codec->hw_write(codec->control_data, data, 2); |
| 370 | } |
| 371 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
Mark Brown | 29e189c | 2010-05-07 20:30:00 +0100 | [diff] [blame] | 372 | |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 373 | return 0; |
| 374 | } |
| 375 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 376 | static int wm8711_probe(struct snd_soc_codec *codec) |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 377 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 378 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
| 379 | int ret, reg; |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 380 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 381 | codec->control_data = wm8711->control_data; |
| 382 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8711->bus_type); |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 383 | if (ret < 0) { |
| 384 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 385 | return ret; |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 386 | } |
| 387 | |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 388 | ret = wm8711_reset(codec); |
| 389 | if (ret < 0) { |
| 390 | dev_err(codec->dev, "Failed to issue reset\n"); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 391 | return ret; |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 392 | } |
| 393 | |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 394 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| 395 | |
| 396 | /* Latch the update bits */ |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 397 | reg = snd_soc_read(codec, WM8711_LOUT1V); |
| 398 | snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100); |
| 399 | reg = snd_soc_read(codec, WM8711_ROUT1V); |
| 400 | snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100); |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 401 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 402 | snd_soc_add_controls(codec, wm8711_snd_controls, |
| 403 | ARRAY_SIZE(wm8711_snd_controls)); |
| 404 | wm8711_add_widgets(codec); |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 405 | |
Mark Brown | d97d2e3 | 2009-08-18 21:12:30 +0100 | [diff] [blame] | 406 | return ret; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 407 | |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 408 | } |
| 409 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 410 | /* power down chip */ |
| 411 | static int wm8711_remove(struct snd_soc_codec *codec) |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 412 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 413 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| 414 | return 0; |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 415 | } |
| 416 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 417 | static struct snd_soc_codec_driver soc_codec_dev_wm8711 = { |
| 418 | .probe = wm8711_probe, |
| 419 | .remove = wm8711_remove, |
| 420 | .suspend = wm8711_suspend, |
| 421 | .resume = wm8711_resume, |
| 422 | .set_bias_level = wm8711_set_bias_level, |
| 423 | .reg_cache_size = sizeof(wm8711_reg), |
| 424 | .reg_word_size = sizeof(u16), |
| 425 | .reg_cache_default = wm8711_reg, |
| 426 | }; |
| 427 | |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 428 | #if defined(CONFIG_SPI_MASTER) |
| 429 | static int __devinit wm8711_spi_probe(struct spi_device *spi) |
| 430 | { |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 431 | struct wm8711_priv *wm8711; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 432 | int ret; |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 433 | |
| 434 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); |
| 435 | if (wm8711 == NULL) |
| 436 | return -ENOMEM; |
| 437 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 438 | spi_set_drvdata(spi, wm8711); |
| 439 | wm8711->control_data = spi; |
| 440 | wm8711->bus_type = SND_SOC_SPI; |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 441 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 442 | ret = snd_soc_register_codec(&spi->dev, |
| 443 | &soc_codec_dev_wm8711, &wm8711_dai, 1); |
| 444 | if (ret < 0) |
| 445 | kfree(wm8711); |
| 446 | return ret; |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | static int __devexit wm8711_spi_remove(struct spi_device *spi) |
| 450 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 451 | snd_soc_unregister_codec(&spi->dev); |
| 452 | kfree(spi_get_drvdata(spi)); |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 453 | return 0; |
| 454 | } |
| 455 | |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 456 | static struct spi_driver wm8711_spi_driver = { |
| 457 | .driver = { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 458 | .name = "wm8711-codec", |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 459 | .bus = &spi_bus_type, |
| 460 | .owner = THIS_MODULE, |
| 461 | }, |
| 462 | .probe = wm8711_spi_probe, |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 463 | .remove = __devexit_p(wm8711_spi_remove), |
| 464 | }; |
| 465 | #endif /* CONFIG_SPI_MASTER */ |
| 466 | |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 467 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 468 | static __devinit int wm8711_i2c_probe(struct i2c_client *client, |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 469 | const struct i2c_device_id *id) |
| 470 | { |
| 471 | struct wm8711_priv *wm8711; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 472 | int ret; |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 473 | |
| 474 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); |
| 475 | if (wm8711 == NULL) |
| 476 | return -ENOMEM; |
| 477 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 478 | i2c_set_clientdata(client, wm8711); |
| 479 | wm8711->control_data = client; |
| 480 | wm8711->bus_type = SND_SOC_I2C; |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 481 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 482 | ret = snd_soc_register_codec(&client->dev, |
| 483 | &soc_codec_dev_wm8711, &wm8711_dai, 1); |
| 484 | if (ret < 0) |
| 485 | kfree(wm8711); |
| 486 | return ret; |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | static __devexit int wm8711_i2c_remove(struct i2c_client *client) |
| 490 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 491 | snd_soc_unregister_codec(&client->dev); |
| 492 | kfree(i2c_get_clientdata(client)); |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 493 | return 0; |
| 494 | } |
| 495 | |
| 496 | static const struct i2c_device_id wm8711_i2c_id[] = { |
| 497 | { "wm8711", 0 }, |
| 498 | { } |
| 499 | }; |
| 500 | MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); |
| 501 | |
| 502 | static struct i2c_driver wm8711_i2c_driver = { |
| 503 | .driver = { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame^] | 504 | .name = "wm8711-codec", |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 505 | .owner = THIS_MODULE, |
| 506 | }, |
| 507 | .probe = wm8711_i2c_probe, |
| 508 | .remove = __devexit_p(wm8711_i2c_remove), |
| 509 | .id_table = wm8711_i2c_id, |
| 510 | }; |
| 511 | #endif |
| 512 | |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 513 | static int __init wm8711_modinit(void) |
| 514 | { |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 515 | int ret; |
| 516 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 517 | ret = i2c_add_driver(&wm8711_i2c_driver); |
| 518 | if (ret != 0) { |
| 519 | printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", |
| 520 | ret); |
| 521 | } |
| 522 | #endif |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 523 | #if defined(CONFIG_SPI_MASTER) |
Takashi Iwai | bb26276 | 2009-10-01 07:39:45 +0200 | [diff] [blame] | 524 | ret = spi_register_driver(&wm8711_spi_driver); |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 525 | if (ret != 0) { |
Takashi Iwai | bb26276 | 2009-10-01 07:39:45 +0200 | [diff] [blame] | 526 | printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n", |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 527 | ret); |
| 528 | } |
| 529 | #endif |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 530 | return 0; |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 531 | } |
| 532 | module_init(wm8711_modinit); |
| 533 | |
| 534 | static void __exit wm8711_exit(void) |
| 535 | { |
Mark Brown | 318b0b8 | 2009-08-18 20:57:33 +0100 | [diff] [blame] | 536 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 537 | i2c_del_driver(&wm8711_i2c_driver); |
| 538 | #endif |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 539 | #if defined(CONFIG_SPI_MASTER) |
Takashi Iwai | bb26276 | 2009-10-01 07:39:45 +0200 | [diff] [blame] | 540 | spi_unregister_driver(&wm8711_spi_driver); |
Mark Brown | 08aff8c | 2009-08-18 21:15:14 +0100 | [diff] [blame] | 541 | #endif |
Mike Arthur | bd6d417 | 2009-08-18 20:37:49 +0100 | [diff] [blame] | 542 | } |
| 543 | module_exit(wm8711_exit); |
| 544 | |
| 545 | MODULE_DESCRIPTION("ASoC WM8711 driver"); |
| 546 | MODULE_AUTHOR("Mike Arthur"); |
| 547 | MODULE_LICENSE("GPL"); |