Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 1 | /* |
| 2 | * AD193X Audio Codec driver supporting AD1936/7/8/9 |
| 3 | * |
| 4 | * Copyright 2010 Analog Devices Inc. |
| 5 | * |
| 6 | * Licensed under the GPL-2 or later. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/init.h> |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/device.h> |
| 13 | #include <linux/i2c.h> |
| 14 | #include <linux/spi/spi.h> |
Stephen Rothwell | 1b132ea | 2010-03-29 15:32:18 +1100 | [diff] [blame] | 15 | #include <linux/slab.h> |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 16 | #include <sound/core.h> |
| 17 | #include <sound/pcm.h> |
| 18 | #include <sound/pcm_params.h> |
| 19 | #include <sound/initval.h> |
| 20 | #include <sound/soc.h> |
| 21 | #include <sound/tlv.h> |
| 22 | #include <sound/soc-dapm.h> |
| 23 | #include "ad193x.h" |
| 24 | |
| 25 | /* codec private data */ |
| 26 | struct ad193x_priv { |
| 27 | struct snd_soc_codec codec; |
| 28 | u8 reg_cache[AD193X_NUM_REGS]; |
| 29 | }; |
| 30 | |
| 31 | /* ad193x register cache & default register settings */ |
| 32 | static const u8 ad193x_reg[AD193X_NUM_REGS] = { |
| 33 | 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, |
| 34 | }; |
| 35 | |
| 36 | static struct snd_soc_codec *ad193x_codec; |
| 37 | struct snd_soc_codec_device soc_codec_dev_ad193x; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 38 | |
| 39 | /* |
| 40 | * AD193X volume/mute/de-emphasis etc. controls |
| 41 | */ |
| 42 | static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"}; |
| 43 | |
| 44 | static const struct soc_enum ad193x_deemp_enum = |
| 45 | SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp); |
| 46 | |
| 47 | static const struct snd_kcontrol_new ad193x_snd_controls[] = { |
| 48 | /* DAC volume control */ |
Barry Song | ba0a24e | 2010-04-21 17:36:49 +0800 | [diff] [blame] | 49 | SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL, |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 50 | AD193X_DAC_R1_VOL, 0, 0xFF, 1), |
Barry Song | ba0a24e | 2010-04-21 17:36:49 +0800 | [diff] [blame] | 51 | SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL, |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 52 | AD193X_DAC_R2_VOL, 0, 0xFF, 1), |
Barry Song | ba0a24e | 2010-04-21 17:36:49 +0800 | [diff] [blame] | 53 | SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL, |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 54 | AD193X_DAC_R3_VOL, 0, 0xFF, 1), |
Barry Song | ba0a24e | 2010-04-21 17:36:49 +0800 | [diff] [blame] | 55 | SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL, |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 56 | AD193X_DAC_R4_VOL, 0, 0xFF, 1), |
| 57 | |
| 58 | /* ADC switch control */ |
| 59 | SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE, |
| 60 | AD193X_ADCR1_MUTE, 1, 1), |
| 61 | SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE, |
| 62 | AD193X_ADCR2_MUTE, 1, 1), |
| 63 | |
| 64 | /* DAC switch control */ |
| 65 | SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE, |
| 66 | AD193X_DACR1_MUTE, 1, 1), |
| 67 | SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE, |
| 68 | AD193X_DACR2_MUTE, 1, 1), |
| 69 | SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE, |
| 70 | AD193X_DACR3_MUTE, 1, 1), |
| 71 | SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE, |
| 72 | AD193X_DACR4_MUTE, 1, 1), |
| 73 | |
| 74 | /* ADC high-pass filter */ |
| 75 | SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0, |
| 76 | AD193X_ADC_HIGHPASS_FILTER, 1, 0), |
| 77 | |
| 78 | /* DAC de-emphasis */ |
| 79 | SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum), |
| 80 | }; |
| 81 | |
| 82 | static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = { |
| 83 | SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1), |
| 84 | SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), |
| 85 | SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0), |
| 86 | SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0), |
| 87 | SND_SOC_DAPM_OUTPUT("DAC1OUT"), |
| 88 | SND_SOC_DAPM_OUTPUT("DAC2OUT"), |
| 89 | SND_SOC_DAPM_OUTPUT("DAC3OUT"), |
| 90 | SND_SOC_DAPM_OUTPUT("DAC4OUT"), |
| 91 | SND_SOC_DAPM_INPUT("ADC1IN"), |
| 92 | SND_SOC_DAPM_INPUT("ADC2IN"), |
| 93 | }; |
| 94 | |
| 95 | static const struct snd_soc_dapm_route audio_paths[] = { |
| 96 | { "DAC", NULL, "PLL_PWR" }, |
| 97 | { "ADC", NULL, "PLL_PWR" }, |
| 98 | { "DAC", NULL, "ADC_PWR" }, |
| 99 | { "ADC", NULL, "ADC_PWR" }, |
| 100 | { "DAC1OUT", "DAC1 Switch", "DAC" }, |
| 101 | { "DAC2OUT", "DAC2 Switch", "DAC" }, |
| 102 | { "DAC3OUT", "DAC3 Switch", "DAC" }, |
| 103 | { "DAC4OUT", "DAC4 Switch", "DAC" }, |
| 104 | { "ADC", "ADC1 Switch", "ADC1IN" }, |
| 105 | { "ADC", "ADC2 Switch", "ADC2IN" }, |
| 106 | }; |
| 107 | |
| 108 | /* |
| 109 | * DAI ops entries |
| 110 | */ |
| 111 | |
| 112 | static int ad193x_mute(struct snd_soc_dai *dai, int mute) |
| 113 | { |
| 114 | struct snd_soc_codec *codec = dai->codec; |
| 115 | int reg; |
| 116 | |
| 117 | reg = snd_soc_read(codec, AD193X_DAC_CTRL2); |
| 118 | reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg & |
| 119 | (~AD193X_DAC_MASTER_MUTE); |
| 120 | snd_soc_write(codec, AD193X_DAC_CTRL2, reg); |
| 121 | |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, |
| 126 | unsigned int rx_mask, int slots, int width) |
| 127 | { |
| 128 | struct snd_soc_codec *codec = dai->codec; |
| 129 | int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1); |
| 130 | int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2); |
| 131 | |
| 132 | dac_reg &= ~AD193X_DAC_CHAN_MASK; |
| 133 | adc_reg &= ~AD193X_ADC_CHAN_MASK; |
| 134 | |
| 135 | switch (slots) { |
| 136 | case 2: |
| 137 | dac_reg |= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT; |
| 138 | adc_reg |= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT; |
| 139 | break; |
| 140 | case 4: |
| 141 | dac_reg |= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT; |
| 142 | adc_reg |= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT; |
| 143 | break; |
| 144 | case 8: |
| 145 | dac_reg |= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT; |
| 146 | adc_reg |= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT; |
| 147 | break; |
| 148 | case 16: |
| 149 | dac_reg |= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT; |
| 150 | adc_reg |= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT; |
| 151 | break; |
| 152 | default: |
| 153 | return -EINVAL; |
| 154 | } |
| 155 | |
| 156 | snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg); |
| 157 | snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg); |
| 158 | |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| 163 | unsigned int fmt) |
| 164 | { |
| 165 | struct snd_soc_codec *codec = codec_dai->codec; |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 166 | int adc_reg1, adc_reg2, dac_reg; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 167 | |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 168 | adc_reg1 = snd_soc_read(codec, AD193X_ADC_CTRL1); |
| 169 | adc_reg2 = snd_soc_read(codec, AD193X_ADC_CTRL2); |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 170 | dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1); |
| 171 | |
| 172 | /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S |
| 173 | * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) |
| 174 | */ |
| 175 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 176 | case SND_SOC_DAIFMT_I2S: |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 177 | adc_reg1 &= ~AD193X_ADC_SERFMT_MASK; |
| 178 | adc_reg1 |= AD193X_ADC_SERFMT_TDM; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 179 | break; |
| 180 | case SND_SOC_DAIFMT_DSP_A: |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 181 | adc_reg1 &= ~AD193X_ADC_SERFMT_MASK; |
| 182 | adc_reg1 |= AD193X_ADC_SERFMT_AUX; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 183 | break; |
| 184 | default: |
| 185 | return -EINVAL; |
| 186 | } |
| 187 | |
| 188 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 189 | case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 190 | adc_reg2 &= ~AD193X_ADC_LEFT_HIGH; |
| 191 | adc_reg2 &= ~AD193X_ADC_BCLK_INV; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 192 | dac_reg &= ~AD193X_DAC_LEFT_HIGH; |
| 193 | dac_reg &= ~AD193X_DAC_BCLK_INV; |
| 194 | break; |
| 195 | case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 196 | adc_reg2 |= AD193X_ADC_LEFT_HIGH; |
| 197 | adc_reg2 &= ~AD193X_ADC_BCLK_INV; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 198 | dac_reg |= AD193X_DAC_LEFT_HIGH; |
| 199 | dac_reg &= ~AD193X_DAC_BCLK_INV; |
| 200 | break; |
| 201 | case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 202 | adc_reg2 &= ~AD193X_ADC_LEFT_HIGH; |
| 203 | adc_reg2 |= AD193X_ADC_BCLK_INV; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 204 | dac_reg &= ~AD193X_DAC_LEFT_HIGH; |
| 205 | dac_reg |= AD193X_DAC_BCLK_INV; |
| 206 | break; |
| 207 | |
| 208 | case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 209 | adc_reg2 |= AD193X_ADC_LEFT_HIGH; |
| 210 | adc_reg2 |= AD193X_ADC_BCLK_INV; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 211 | dac_reg |= AD193X_DAC_LEFT_HIGH; |
| 212 | dac_reg |= AD193X_DAC_BCLK_INV; |
| 213 | break; |
| 214 | default: |
| 215 | return -EINVAL; |
| 216 | } |
| 217 | |
| 218 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 219 | case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 220 | adc_reg2 |= AD193X_ADC_LCR_MASTER; |
| 221 | adc_reg2 |= AD193X_ADC_BCLK_MASTER; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 222 | dac_reg |= AD193X_DAC_LCR_MASTER; |
| 223 | dac_reg |= AD193X_DAC_BCLK_MASTER; |
| 224 | break; |
| 225 | case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 226 | adc_reg2 |= AD193X_ADC_LCR_MASTER; |
| 227 | adc_reg2 &= ~AD193X_ADC_BCLK_MASTER; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 228 | dac_reg |= AD193X_DAC_LCR_MASTER; |
| 229 | dac_reg &= ~AD193X_DAC_BCLK_MASTER; |
| 230 | break; |
| 231 | case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 232 | adc_reg2 &= ~AD193X_ADC_LCR_MASTER; |
| 233 | adc_reg2 |= AD193X_ADC_BCLK_MASTER; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 234 | dac_reg &= ~AD193X_DAC_LCR_MASTER; |
| 235 | dac_reg |= AD193X_DAC_BCLK_MASTER; |
| 236 | break; |
| 237 | case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */ |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 238 | adc_reg2 &= ~AD193X_ADC_LCR_MASTER; |
| 239 | adc_reg2 &= ~AD193X_ADC_BCLK_MASTER; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 240 | dac_reg &= ~AD193X_DAC_LCR_MASTER; |
| 241 | dac_reg &= ~AD193X_DAC_BCLK_MASTER; |
| 242 | break; |
| 243 | default: |
| 244 | return -EINVAL; |
| 245 | } |
| 246 | |
Barry Song | d6bdc0f | 2010-04-21 17:36:48 +0800 | [diff] [blame] | 247 | snd_soc_write(codec, AD193X_ADC_CTRL1, adc_reg1); |
| 248 | snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg2); |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 249 | snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg); |
| 250 | |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | static int ad193x_hw_params(struct snd_pcm_substream *substream, |
| 255 | struct snd_pcm_hw_params *params, |
| 256 | struct snd_soc_dai *dai) |
| 257 | { |
| 258 | int word_len = 0, reg = 0; |
| 259 | |
| 260 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 261 | struct snd_soc_device *socdev = rtd->socdev; |
| 262 | struct snd_soc_codec *codec = socdev->card->codec; |
| 263 | |
| 264 | /* bit size */ |
| 265 | switch (params_format(params)) { |
| 266 | case SNDRV_PCM_FORMAT_S16_LE: |
| 267 | word_len = 3; |
| 268 | break; |
| 269 | case SNDRV_PCM_FORMAT_S20_3LE: |
| 270 | word_len = 1; |
| 271 | break; |
| 272 | case SNDRV_PCM_FORMAT_S24_LE: |
| 273 | case SNDRV_PCM_FORMAT_S32_LE: |
| 274 | word_len = 0; |
| 275 | break; |
| 276 | } |
| 277 | |
| 278 | reg = snd_soc_read(codec, AD193X_DAC_CTRL2); |
| 279 | reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) | word_len; |
| 280 | snd_soc_write(codec, AD193X_DAC_CTRL2, reg); |
| 281 | |
| 282 | reg = snd_soc_read(codec, AD193X_ADC_CTRL1); |
| 283 | reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len; |
| 284 | snd_soc_write(codec, AD193X_ADC_CTRL1, reg); |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | |
Mark Brown | cffce32 | 2010-03-19 12:22:03 +0000 | [diff] [blame] | 289 | static int ad193x_bus_probe(struct device *dev, void *ctrl_data, int bus_type) |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 290 | { |
| 291 | struct snd_soc_codec *codec; |
| 292 | struct ad193x_priv *ad193x; |
Barry Song | 9dd7b79 | 2010-03-29 11:16:00 +0800 | [diff] [blame] | 293 | int ret; |
| 294 | |
| 295 | if (ad193x_codec) { |
| 296 | dev_err(dev, "Another ad193x is registered\n"); |
| 297 | return -EINVAL; |
| 298 | } |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 299 | |
| 300 | ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL); |
| 301 | if (ad193x == NULL) |
| 302 | return -ENOMEM; |
| 303 | |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 304 | dev_set_drvdata(dev, ad193x); |
| 305 | |
Barry Song | 9dd7b79 | 2010-03-29 11:16:00 +0800 | [diff] [blame] | 306 | codec = &ad193x->codec; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 307 | mutex_init(&codec->mutex); |
Barry Song | 9dd7b79 | 2010-03-29 11:16:00 +0800 | [diff] [blame] | 308 | codec->control_data = ctrl_data; |
| 309 | codec->dev = dev; |
Mark Brown | b2c812e | 2010-04-14 15:35:19 +0900 | [diff] [blame] | 310 | snd_soc_codec_set_drvdata(codec, ad193x); |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 311 | codec->reg_cache = ad193x->reg_cache; |
| 312 | codec->reg_cache_size = AD193X_NUM_REGS; |
| 313 | codec->name = "AD193X"; |
| 314 | codec->owner = THIS_MODULE; |
| 315 | codec->dai = &ad193x_dai; |
| 316 | codec->num_dai = 1; |
| 317 | INIT_LIST_HEAD(&codec->dapm_widgets); |
| 318 | INIT_LIST_HEAD(&codec->dapm_paths); |
| 319 | |
| 320 | ad193x_dai.dev = codec->dev; |
| 321 | ad193x_codec = codec; |
| 322 | |
| 323 | memcpy(codec->reg_cache, ad193x_reg, AD193X_NUM_REGS); |
| 324 | |
| 325 | if (bus_type == SND_SOC_I2C) |
| 326 | ret = snd_soc_codec_set_cache_io(codec, 8, 8, bus_type); |
| 327 | else |
| 328 | ret = snd_soc_codec_set_cache_io(codec, 16, 8, bus_type); |
| 329 | if (ret < 0) { |
| 330 | dev_err(codec->dev, "failed to set cache I/O: %d\n", |
| 331 | ret); |
| 332 | kfree(ad193x); |
| 333 | return ret; |
| 334 | } |
| 335 | |
| 336 | /* default setting for ad193x */ |
| 337 | |
| 338 | /* unmute dac channels */ |
| 339 | snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0); |
| 340 | /* de-emphasis: 48kHz, powedown dac */ |
| 341 | snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A); |
| 342 | /* powerdown dac, dac in tdm mode */ |
| 343 | snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41); |
| 344 | /* high-pass filter enable */ |
| 345 | snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3); |
| 346 | /* sata delay=1, adc aux mode */ |
| 347 | snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43); |
| 348 | /* pll input: mclki/xi */ |
| 349 | snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */ |
| 350 | snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04); |
| 351 | |
| 352 | ret = snd_soc_register_codec(codec); |
| 353 | if (ret != 0) { |
| 354 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); |
| 355 | kfree(ad193x); |
| 356 | return ret; |
| 357 | } |
| 358 | |
| 359 | ret = snd_soc_register_dai(&ad193x_dai); |
| 360 | if (ret != 0) { |
| 361 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); |
| 362 | snd_soc_unregister_codec(codec); |
| 363 | kfree(ad193x); |
| 364 | return ret; |
| 365 | } |
| 366 | |
| 367 | return 0; |
| 368 | } |
| 369 | |
Barry Song | 9dd7b79 | 2010-03-29 11:16:00 +0800 | [diff] [blame] | 370 | static int ad193x_bus_remove(struct device *dev) |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 371 | { |
Barry Song | 9dd7b79 | 2010-03-29 11:16:00 +0800 | [diff] [blame] | 372 | struct ad193x_priv *ad193x = dev_get_drvdata(dev); |
| 373 | |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 374 | snd_soc_unregister_dai(&ad193x_dai); |
| 375 | snd_soc_unregister_codec(&ad193x->codec); |
| 376 | kfree(ad193x); |
| 377 | ad193x_codec = NULL; |
Barry Song | 9dd7b79 | 2010-03-29 11:16:00 +0800 | [diff] [blame] | 378 | |
| 379 | return 0; |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 380 | } |
| 381 | |
Barry Song | 9dd7b79 | 2010-03-29 11:16:00 +0800 | [diff] [blame] | 382 | static struct snd_soc_dai_ops ad193x_dai_ops = { |
| 383 | .hw_params = ad193x_hw_params, |
| 384 | .digital_mute = ad193x_mute, |
| 385 | .set_tdm_slot = ad193x_set_tdm_slot, |
| 386 | .set_fmt = ad193x_set_dai_fmt, |
| 387 | }; |
| 388 | |
| 389 | /* codec DAI instance */ |
| 390 | struct snd_soc_dai ad193x_dai = { |
| 391 | .name = "AD193X", |
| 392 | .playback = { |
| 393 | .stream_name = "Playback", |
| 394 | .channels_min = 2, |
| 395 | .channels_max = 8, |
| 396 | .rates = SNDRV_PCM_RATE_48000, |
| 397 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
| 398 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
| 399 | }, |
| 400 | .capture = { |
| 401 | .stream_name = "Capture", |
| 402 | .channels_min = 2, |
| 403 | .channels_max = 4, |
| 404 | .rates = SNDRV_PCM_RATE_48000, |
| 405 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
| 406 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
| 407 | }, |
| 408 | .ops = &ad193x_dai_ops, |
| 409 | }; |
| 410 | EXPORT_SYMBOL_GPL(ad193x_dai); |
| 411 | |
Barry Song | a1533d9 | 2010-03-19 14:48:33 +0800 | [diff] [blame] | 412 | static int ad193x_probe(struct platform_device *pdev) |
| 413 | { |
| 414 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| 415 | struct snd_soc_codec *codec; |
| 416 | int ret = 0; |
| 417 | |
| 418 | if (ad193x_codec == NULL) { |
| 419 | dev_err(&pdev->dev, "Codec device not registered\n"); |
| 420 | return -ENODEV; |
| 421 | } |
| 422 | |
| 423 | socdev->card->codec = ad193x_codec; |
| 424 | codec = ad193x_codec; |
| 425 | |
| 426 | /* register pcms */ |
| 427 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); |
| 428 | if (ret < 0) { |
| 429 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); |
| 430 | goto pcm_err; |
| 431 | } |
| 432 | |
| 433 | snd_soc_add_controls(codec, ad193x_snd_controls, |
| 434 | ARRAY_SIZE(ad193x_snd_controls)); |
| 435 | snd_soc_dapm_new_controls(codec, ad193x_dapm_widgets, |
| 436 | ARRAY_SIZE(ad193x_dapm_widgets)); |
| 437 | snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths)); |
| 438 | |
| 439 | pcm_err: |
| 440 | return ret; |
| 441 | } |
| 442 | |
| 443 | /* power down chip */ |
| 444 | static int ad193x_remove(struct platform_device *pdev) |
| 445 | { |
| 446 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| 447 | |
| 448 | snd_soc_free_pcms(socdev); |
| 449 | snd_soc_dapm_free(socdev); |
| 450 | |
| 451 | return 0; |
| 452 | } |
| 453 | |
| 454 | struct snd_soc_codec_device soc_codec_dev_ad193x = { |
| 455 | .probe = ad193x_probe, |
| 456 | .remove = ad193x_remove, |
| 457 | }; |
| 458 | EXPORT_SYMBOL_GPL(soc_codec_dev_ad193x); |
| 459 | |
| 460 | #if defined(CONFIG_SPI_MASTER) |
| 461 | static int __devinit ad193x_spi_probe(struct spi_device *spi) |
| 462 | { |
| 463 | return ad193x_bus_probe(&spi->dev, spi, SND_SOC_SPI); |
| 464 | } |
| 465 | |
| 466 | static int __devexit ad193x_spi_remove(struct spi_device *spi) |
| 467 | { |
| 468 | return ad193x_bus_remove(&spi->dev); |
| 469 | } |
| 470 | |
| 471 | static struct spi_driver ad193x_spi_driver = { |
| 472 | .driver = { |
| 473 | .name = "ad193x", |
| 474 | .owner = THIS_MODULE, |
| 475 | }, |
| 476 | .probe = ad193x_spi_probe, |
| 477 | .remove = __devexit_p(ad193x_spi_remove), |
| 478 | }; |
| 479 | #endif |
| 480 | |
| 481 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 482 | static const struct i2c_device_id ad193x_id[] = { |
| 483 | { "ad1936", 0 }, |
| 484 | { "ad1937", 0 }, |
| 485 | { } |
| 486 | }; |
| 487 | MODULE_DEVICE_TABLE(i2c, ad193x_id); |
| 488 | |
| 489 | static int __devinit ad193x_i2c_probe(struct i2c_client *client, |
| 490 | const struct i2c_device_id *id) |
| 491 | { |
| 492 | return ad193x_bus_probe(&client->dev, client, SND_SOC_I2C); |
| 493 | } |
| 494 | |
| 495 | static int __devexit ad193x_i2c_remove(struct i2c_client *client) |
| 496 | { |
| 497 | return ad193x_bus_remove(&client->dev); |
| 498 | } |
| 499 | |
| 500 | static struct i2c_driver ad193x_i2c_driver = { |
| 501 | .driver = { |
| 502 | .name = "ad193x", |
| 503 | }, |
| 504 | .probe = ad193x_i2c_probe, |
| 505 | .remove = __devexit_p(ad193x_i2c_remove), |
| 506 | .id_table = ad193x_id, |
| 507 | }; |
| 508 | #endif |
| 509 | |
| 510 | static int __init ad193x_modinit(void) |
| 511 | { |
| 512 | int ret; |
| 513 | |
| 514 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 515 | ret = i2c_add_driver(&ad193x_i2c_driver); |
| 516 | if (ret != 0) { |
| 517 | printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n", |
| 518 | ret); |
| 519 | } |
| 520 | #endif |
| 521 | |
| 522 | #if defined(CONFIG_SPI_MASTER) |
| 523 | ret = spi_register_driver(&ad193x_spi_driver); |
| 524 | if (ret != 0) { |
| 525 | printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n", |
| 526 | ret); |
| 527 | } |
| 528 | #endif |
| 529 | return ret; |
| 530 | } |
| 531 | module_init(ad193x_modinit); |
| 532 | |
| 533 | static void __exit ad193x_modexit(void) |
| 534 | { |
| 535 | #if defined(CONFIG_SPI_MASTER) |
| 536 | spi_unregister_driver(&ad193x_spi_driver); |
| 537 | #endif |
| 538 | |
| 539 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 540 | i2c_del_driver(&ad193x_i2c_driver); |
| 541 | #endif |
| 542 | } |
| 543 | module_exit(ad193x_modexit); |
| 544 | |
| 545 | MODULE_DESCRIPTION("ASoC ad193x driver"); |
| 546 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); |
| 547 | MODULE_LICENSE("GPL"); |