1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Based on sound/soc/codecs/tlv320aic3x.c by Vladimir Barinov 4 // 5 // Copyright (C) 2010 Mistral Solutions Pvt Ltd. 6 // Author: Shahina Shaik <shahina.s@mistralsolutions.com> 7 // 8 // Copyright (C) 2014-2018, Ambarella, Inc. 9 // Author: Dongge wu <dgwu@ambarella.com> 10 // 11 // Copyright (C) 2021 Axis Communications AB 12 // Author: Ricard Wanderlof <ricardw@axis.com> 13 // 14 15 #include <dt-bindings/sound/tlv320adc3xxx.h> 16 #include <linux/clk.h> 17 #include <linux/gpio/consumer.h> 18 #include <linux/module.h> 19 #include <linux/moduleparam.h> 20 #include <linux/io.h> 21 #include <linux/init.h> 22 #include <linux/delay.h> 23 #include <linux/gpio/driver.h> 24 #include <linux/pm.h> 25 #include <linux/i2c.h> 26 #include <linux/platform_device.h> 27 #include <linux/cdev.h> 28 #include <linux/of_gpio.h> 29 #include <linux/slab.h> 30 #include <sound/core.h> 31 #include <sound/pcm.h> 32 #include <sound/pcm_params.h> 33 #include <sound/soc.h> 34 #include <sound/soc-dapm.h> 35 #include <sound/tlv.h> 36 #include <sound/initval.h> 37 38 /* 39 * General definitions defining exported functionality. 40 */ 41 42 #define ADC3XXX_MICBIAS_PINS 2 43 44 /* Number of GPIO pins exposed via the gpiolib interface */ 45 #define ADC3XXX_GPIOS_MAX 2 46 47 #define ADC3XXX_RATES SNDRV_PCM_RATE_8000_96000 48 #define ADC3XXX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ 49 SNDRV_PCM_FMTBIT_S20_3LE | \ 50 SNDRV_PCM_FMTBIT_S24_3LE | \ 51 SNDRV_PCM_FMTBIT_S32_LE) 52 53 /* 54 * PLL modes, to be used for clk_id for set_sysclk callback. 55 * 56 * The default behavior (AUTO) is to take the first matching entry in the clock 57 * table, which is intended to be the PLL based one if there is more than one. 58 * 59 * Setting the clock source using simple-card (clocks or 60 * system-clock-frequency property) sets clk_id = 0 = ADC3XXX_PLL_AUTO. 61 */ 62 #define ADC3XXX_PLL_AUTO 0 /* Use first available mode */ 63 #define ADC3XXX_PLL_ENABLE 1 /* Use PLL for clock generation */ 64 #define ADC3XXX_PLL_BYPASS 2 /* Don't use PLL for clock generation */ 65 66 /* Register definitions. */ 67 68 #define ADC3XXX_PAGE_SIZE 128 69 #define ADC3XXX_REG(page, reg) ((page * ADC3XXX_PAGE_SIZE) + reg) 70 71 /* 72 * Page 0 registers. 73 */ 74 75 #define ADC3XXX_PAGE_SELECT ADC3XXX_REG(0, 0) 76 #define ADC3XXX_RESET ADC3XXX_REG(0, 1) 77 78 /* 2-3 Reserved */ 79 80 #define ADC3XXX_CLKGEN_MUX ADC3XXX_REG(0, 4) 81 #define ADC3XXX_PLL_PROG_PR ADC3XXX_REG(0, 5) 82 #define ADC3XXX_PLL_PROG_J ADC3XXX_REG(0, 6) 83 #define ADC3XXX_PLL_PROG_D_MSB ADC3XXX_REG(0, 7) 84 #define ADC3XXX_PLL_PROG_D_LSB ADC3XXX_REG(0, 8) 85 86 /* 9-17 Reserved */ 87 88 #define ADC3XXX_ADC_NADC ADC3XXX_REG(0, 18) 89 #define ADC3XXX_ADC_MADC ADC3XXX_REG(0, 19) 90 #define ADC3XXX_ADC_AOSR ADC3XXX_REG(0, 20) 91 #define ADC3XXX_ADC_IADC ADC3XXX_REG(0, 21) 92 93 /* 23-24 Reserved */ 94 95 #define ADC3XXX_CLKOUT_MUX ADC3XXX_REG(0, 25) 96 #define ADC3XXX_CLKOUT_M_DIV ADC3XXX_REG(0, 26) 97 #define ADC3XXX_INTERFACE_CTRL_1 ADC3XXX_REG(0, 27) 98 #define ADC3XXX_CH_OFFSET_1 ADC3XXX_REG(0, 28) 99 #define ADC3XXX_INTERFACE_CTRL_2 ADC3XXX_REG(0, 29) 100 #define ADC3XXX_BCLK_N_DIV ADC3XXX_REG(0, 30) 101 #define ADC3XXX_INTERFACE_CTRL_3 ADC3XXX_REG(0, 31) 102 #define ADC3XXX_INTERFACE_CTRL_4 ADC3XXX_REG(0, 32) 103 #define ADC3XXX_INTERFACE_CTRL_5 ADC3XXX_REG(0, 33) 104 #define ADC3XXX_I2S_SYNC ADC3XXX_REG(0, 34) 105 /* 35 Reserved */ 106 #define ADC3XXX_ADC_FLAG ADC3XXX_REG(0, 36) 107 #define ADC3XXX_CH_OFFSET_2 ADC3XXX_REG(0, 37) 108 #define ADC3XXX_I2S_TDM_CTRL ADC3XXX_REG(0, 38) 109 /* 39-41 Reserved */ 110 #define ADC3XXX_INTR_FLAG_1 ADC3XXX_REG(0, 42) 111 #define ADC3XXX_INTR_FLAG_2 ADC3XXX_REG(0, 43) 112 /* 44 Reserved */ 113 #define ADC3XXX_INTR_FLAG_ADC1 ADC3XXX_REG(0, 45) 114 /* 46 Reserved */ 115 #define ADC3XXX_INTR_FLAG_ADC2 ADC3XXX_REG(0, 47) 116 #define ADC3XXX_INT1_CTRL ADC3XXX_REG(0, 48) 117 #define ADC3XXX_INT2_CTRL ADC3XXX_REG(0, 49) 118 /* 50 Reserved */ 119 #define ADC3XXX_GPIO2_CTRL ADC3XXX_REG(0, 51) 120 #define ADC3XXX_GPIO1_CTRL ADC3XXX_REG(0, 52) 121 #define ADC3XXX_DOUT_CTRL ADC3XXX_REG(0, 53) 122 /* 54-56 Reserved */ 123 #define ADC3XXX_SYNC_CTRL_1 ADC3XXX_REG(0, 57) 124 #define ADC3XXX_SYNC_CTRL_2 ADC3XXX_REG(0, 58) 125 #define ADC3XXX_CIC_GAIN_CTRL ADC3XXX_REG(0, 59) 126 /* 60 Reserved */ 127 #define ADC3XXX_PRB_SELECT ADC3XXX_REG(0, 61) 128 #define ADC3XXX_INST_MODE_CTRL ADC3XXX_REG(0, 62) 129 /* 63-79 Reserved */ 130 #define ADC3XXX_MIC_POLARITY_CTRL ADC3XXX_REG(0, 80) 131 #define ADC3XXX_ADC_DIGITAL ADC3XXX_REG(0, 81) 132 #define ADC3XXX_ADC_FGA ADC3XXX_REG(0, 82) 133 #define ADC3XXX_LADC_VOL ADC3XXX_REG(0, 83) 134 #define ADC3XXX_RADC_VOL ADC3XXX_REG(0, 84) 135 #define ADC3XXX_ADC_PHASE_COMP ADC3XXX_REG(0, 85) 136 #define ADC3XXX_LEFT_CHN_AGC_1 ADC3XXX_REG(0, 86) 137 #define ADC3XXX_LEFT_CHN_AGC_2 ADC3XXX_REG(0, 87) 138 #define ADC3XXX_LEFT_CHN_AGC_3 ADC3XXX_REG(0, 88) 139 #define ADC3XXX_LEFT_CHN_AGC_4 ADC3XXX_REG(0, 89) 140 #define ADC3XXX_LEFT_CHN_AGC_5 ADC3XXX_REG(0, 90) 141 #define ADC3XXX_LEFT_CHN_AGC_6 ADC3XXX_REG(0, 91) 142 #define ADC3XXX_LEFT_CHN_AGC_7 ADC3XXX_REG(0, 92) 143 #define ADC3XXX_LEFT_AGC_GAIN ADC3XXX_REG(0, 93) 144 #define ADC3XXX_RIGHT_CHN_AGC_1 ADC3XXX_REG(0, 94) 145 #define ADC3XXX_RIGHT_CHN_AGC_2 ADC3XXX_REG(0, 95) 146 #define ADC3XXX_RIGHT_CHN_AGC_3 ADC3XXX_REG(0, 96) 147 #define ADC3XXX_RIGHT_CHN_AGC_4 ADC3XXX_REG(0, 97) 148 #define ADC3XXX_RIGHT_CHN_AGC_5 ADC3XXX_REG(0, 98) 149 #define ADC3XXX_RIGHT_CHN_AGC_6 ADC3XXX_REG(0, 99) 150 #define ADC3XXX_RIGHT_CHN_AGC_7 ADC3XXX_REG(0, 100) 151 #define ADC3XXX_RIGHT_AGC_GAIN ADC3XXX_REG(0, 101) 152 /* 102-127 Reserved */ 153 154 /* 155 * Page 1 registers. 156 */ 157 158 /* 1-25 Reserved */ 159 #define ADC3XXX_DITHER_CTRL ADC3XXX_REG(1, 26) 160 /* 27-50 Reserved */ 161 #define ADC3XXX_MICBIAS_CTRL ADC3XXX_REG(1, 51) 162 #define ADC3XXX_LEFT_PGA_SEL_1 ADC3XXX_REG(1, 52) 163 /* 53 Reserved */ 164 #define ADC3XXX_LEFT_PGA_SEL_2 ADC3XXX_REG(1, 54) 165 #define ADC3XXX_RIGHT_PGA_SEL_1 ADC3XXX_REG(1, 55) 166 #define ADC3XXX_RIGHT_PGA_SEL_2 ADC3XXX_REG(1, 57) 167 #define ADC3XXX_LEFT_APGA_CTRL ADC3XXX_REG(1, 59) 168 #define ADC3XXX_RIGHT_APGA_CTRL ADC3XXX_REG(1, 60) 169 #define ADC3XXX_LOW_CURRENT_MODES ADC3XXX_REG(1, 61) 170 #define ADC3XXX_ANALOG_PGA_FLAGS ADC3XXX_REG(1, 62) 171 /* 63-127 Reserved */ 172 173 /* 174 * Page 4 registers. First page of coefficient memory for the miniDSP. 175 */ 176 #define ADC3XXX_LEFT_ADC_IIR_COEFF_N0_MSB ADC3XXX_REG(4, 8) 177 #define ADC3XXX_LEFT_ADC_IIR_COEFF_N0_LSB ADC3XXX_REG(4, 9) 178 #define ADC3XXX_LEFT_ADC_IIR_COEFF_N1_MSB ADC3XXX_REG(4, 10) 179 #define ADC3XXX_LEFT_ADC_IIR_COEFF_N1_LSB ADC3XXX_REG(4, 11) 180 #define ADC3XXX_LEFT_ADC_IIR_COEFF_D1_MSB ADC3XXX_REG(4, 12) 181 #define ADC3XXX_LEFT_ADC_IIR_COEFF_D1_LSB ADC3XXX_REG(4, 13) 182 183 #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_MSB ADC3XXX_REG(4, 72) 184 #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_LSB ADC3XXX_REG(4, 73) 185 #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N1_MSB ADC3XXX_REG(4, 74) 186 #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N1_LSB ADC3XXX_REG(4, 75) 187 #define ADC3XXX_RIGHT_ADC_IIR_COEFF_D1_MSB ADC3XXX_REG(4, 76) 188 #define ADC3XXX_RIGHT_ADC_IIR_COEFF_D1_LSB ADC3XXX_REG(4, 77) 189 190 /* 191 * Register bits. 192 */ 193 194 /* PLL Enable bits */ 195 #define ADC3XXX_ENABLE_PLL_SHIFT 7 196 #define ADC3XXX_ENABLE_PLL (1 << ADC3XXX_ENABLE_PLL_SHIFT) 197 #define ADC3XXX_ENABLE_NADC_SHIFT 7 198 #define ADC3XXX_ENABLE_NADC (1 << ADC3XXX_ENABLE_NADC_SHIFT) 199 #define ADC3XXX_ENABLE_MADC_SHIFT 7 200 #define ADC3XXX_ENABLE_MADC (1 << ADC3XXX_ENABLE_MADC_SHIFT) 201 #define ADC3XXX_ENABLE_BCLK_SHIFT 7 202 #define ADC3XXX_ENABLE_BCLK (1 << ADC3XXX_ENABLE_BCLK_SHIFT) 203 204 /* Power bits */ 205 #define ADC3XXX_LADC_PWR_ON 0x80 206 #define ADC3XXX_RADC_PWR_ON 0x40 207 208 #define ADC3XXX_SOFT_RESET 0x01 209 #define ADC3XXX_BCLK_MASTER 0x08 210 #define ADC3XXX_WCLK_MASTER 0x04 211 212 /* Interface register masks */ 213 #define ADC3XXX_FORMAT_MASK 0xc0 214 #define ADC3XXX_FORMAT_SHIFT 6 215 #define ADC3XXX_WLENGTH_MASK 0x30 216 #define ADC3XXX_WLENGTH_SHIFT 4 217 #define ADC3XXX_CLKDIR_MASK 0x0c 218 #define ADC3XXX_CLKDIR_SHIFT 2 219 220 /* Interface register bit patterns */ 221 #define ADC3XXX_FORMAT_I2S (0 << ADC3XXX_FORMAT_SHIFT) 222 #define ADC3XXX_FORMAT_DSP (1 << ADC3XXX_FORMAT_SHIFT) 223 #define ADC3XXX_FORMAT_RJF (2 << ADC3XXX_FORMAT_SHIFT) 224 #define ADC3XXX_FORMAT_LJF (3 << ADC3XXX_FORMAT_SHIFT) 225 226 #define ADC3XXX_IFACE_16BITS (0 << ADC3XXX_WLENGTH_SHIFT) 227 #define ADC3XXX_IFACE_20BITS (1 << ADC3XXX_WLENGTH_SHIFT) 228 #define ADC3XXX_IFACE_24BITS (2 << ADC3XXX_WLENGTH_SHIFT) 229 #define ADC3XXX_IFACE_32BITS (3 << ADC3XXX_WLENGTH_SHIFT) 230 231 /* PLL P/R bit offsets */ 232 #define ADC3XXX_PLLP_SHIFT 4 233 #define ADC3XXX_PLLR_SHIFT 0 234 #define ADC3XXX_PLL_PR_MASK 0x7f 235 #define ADC3XXX_PLLJ_MASK 0x3f 236 #define ADC3XXX_PLLD_MSB_MASK 0x3f 237 #define ADC3XXX_PLLD_LSB_MASK 0xff 238 #define ADC3XXX_NADC_MASK 0x7f 239 #define ADC3XXX_MADC_MASK 0x7f 240 #define ADC3XXX_AOSR_MASK 0xff 241 #define ADC3XXX_IADC_MASK 0xff 242 #define ADC3XXX_BDIV_MASK 0x7f 243 244 /* PLL_CLKIN bits */ 245 #define ADC3XXX_PLL_CLKIN_SHIFT 2 246 #define ADC3XXX_PLL_CLKIN_MCLK 0x0 247 #define ADC3XXX_PLL_CLKIN_BCLK 0x1 248 #define ADC3XXX_PLL_CLKIN_ZERO 0x3 249 250 /* CODEC_CLKIN bits */ 251 #define ADC3XXX_CODEC_CLKIN_SHIFT 0 252 #define ADC3XXX_CODEC_CLKIN_MCLK 0x0 253 #define ADC3XXX_CODEC_CLKIN_BCLK 0x1 254 #define ADC3XXX_CODEC_CLKIN_PLL_CLK 0x3 255 256 #define ADC3XXX_USE_PLL ((ADC3XXX_PLL_CLKIN_MCLK << ADC3XXX_PLL_CLKIN_SHIFT) | \ 257 (ADC3XXX_CODEC_CLKIN_PLL_CLK << ADC3XXX_CODEC_CLKIN_SHIFT)) 258 #define ADC3XXX_NO_PLL ((ADC3XXX_PLL_CLKIN_ZERO << ADC3XXX_PLL_CLKIN_SHIFT) | \ 259 (ADC3XXX_CODEC_CLKIN_MCLK << ADC3XXX_CODEC_CLKIN_SHIFT)) 260 261 /* Analog PGA control bits */ 262 #define ADC3XXX_LPGA_MUTE 0x80 263 #define ADC3XXX_RPGA_MUTE 0x80 264 265 #define ADC3XXX_LPGA_GAIN_MASK 0x7f 266 #define ADC3XXX_RPGA_GAIN_MASK 0x7f 267 268 /* ADC current modes */ 269 #define ADC3XXX_ADC_LOW_CURR_MODE 0x01 270 271 /* Left ADC Input selection bits */ 272 #define ADC3XXX_LCH_SEL1_SHIFT 0 273 #define ADC3XXX_LCH_SEL2_SHIFT 2 274 #define ADC3XXX_LCH_SEL3_SHIFT 4 275 #define ADC3XXX_LCH_SEL4_SHIFT 6 276 277 #define ADC3XXX_LCH_SEL1X_SHIFT 0 278 #define ADC3XXX_LCH_SEL2X_SHIFT 2 279 #define ADC3XXX_LCH_SEL3X_SHIFT 4 280 #define ADC3XXX_LCH_COMMON_MODE 0x40 281 #define ADC3XXX_BYPASS_LPGA 0x80 282 283 /* Right ADC Input selection bits */ 284 #define ADC3XXX_RCH_SEL1_SHIFT 0 285 #define ADC3XXX_RCH_SEL2_SHIFT 2 286 #define ADC3XXX_RCH_SEL3_SHIFT 4 287 #define ADC3XXX_RCH_SEL4_SHIFT 6 288 289 #define ADC3XXX_RCH_SEL1X_SHIFT 0 290 #define ADC3XXX_RCH_SEL2X_SHIFT 2 291 #define ADC3XXX_RCH_SEL3X_SHIFT 4 292 #define ADC3XXX_RCH_COMMON_MODE 0x40 293 #define ADC3XXX_BYPASS_RPGA 0x80 294 295 /* MICBIAS control bits */ 296 #define ADC3XXX_MICBIAS_MASK 0x3 297 #define ADC3XXX_MICBIAS1_SHIFT 5 298 #define ADC3XXX_MICBIAS2_SHIFT 3 299 300 #define ADC3XXX_ADC_MAX_VOLUME 64 301 #define ADC3XXX_ADC_POS_VOL 24 302 303 /* GPIO control bits (GPIO1_CTRL and GPIO2_CTRL) */ 304 #define ADC3XXX_GPIO_CTRL_CFG_MASK 0x3c 305 #define ADC3XXX_GPIO_CTRL_CFG_SHIFT 2 306 #define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK 0x01 307 #define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT 0 308 #define ADC3XXX_GPIO_CTRL_INPUT_VALUE_MASK 0x02 309 #define ADC3XXX_GPIO_CTRL_INPUT_VALUE_SHIFT 1 310 311 enum adc3xxx_type { 312 ADC3001 = 0, 313 ADC3101 314 }; 315 316 struct adc3xxx { 317 struct device *dev; 318 enum adc3xxx_type type; 319 struct clk *mclk; 320 struct regmap *regmap; 321 struct gpio_desc *rst_pin; 322 unsigned int pll_mode; 323 unsigned int sysclk; 324 unsigned int gpio_cfg[ADC3XXX_GPIOS_MAX]; /* value+1 (0 => not set) */ 325 unsigned int micbias_vg[ADC3XXX_MICBIAS_PINS]; 326 int master; 327 u8 page_no; 328 int use_pll; 329 struct gpio_chip gpio_chip; 330 }; 331 332 static const unsigned int adc3xxx_gpio_ctrl_reg[ADC3XXX_GPIOS_MAX] = { 333 ADC3XXX_GPIO1_CTRL, 334 ADC3XXX_GPIO2_CTRL 335 }; 336 337 static const unsigned int adc3xxx_micbias_shift[ADC3XXX_MICBIAS_PINS] = { 338 ADC3XXX_MICBIAS1_SHIFT, 339 ADC3XXX_MICBIAS2_SHIFT 340 }; 341 342 static const struct reg_default adc3xxx_defaults[] = { 343 /* Page 0 */ 344 { 0, 0x00 }, { 1, 0x00 }, { 2, 0x00 }, { 3, 0x00 }, 345 { 4, 0x00 }, { 5, 0x11 }, { 6, 0x04 }, { 7, 0x00 }, 346 { 8, 0x00 }, { 9, 0x00 }, { 10, 0x00 }, { 11, 0x00 }, 347 { 12, 0x00 }, { 13, 0x00 }, { 14, 0x00 }, { 15, 0x00 }, 348 { 16, 0x00 }, { 17, 0x00 }, { 18, 0x01 }, { 19, 0x01 }, 349 { 20, 0x80 }, { 21, 0x80 }, { 22, 0x04 }, { 23, 0x00 }, 350 { 24, 0x00 }, { 25, 0x00 }, { 26, 0x01 }, { 27, 0x00 }, 351 { 28, 0x00 }, { 29, 0x02 }, { 30, 0x01 }, { 31, 0x00 }, 352 { 32, 0x00 }, { 33, 0x10 }, { 34, 0x00 }, { 35, 0x00 }, 353 { 36, 0x00 }, { 37, 0x00 }, { 38, 0x02 }, { 39, 0x00 }, 354 { 40, 0x00 }, { 41, 0x00 }, { 42, 0x00 }, { 43, 0x00 }, 355 { 44, 0x00 }, { 45, 0x00 }, { 46, 0x00 }, { 47, 0x00 }, 356 { 48, 0x00 }, { 49, 0x00 }, { 50, 0x00 }, { 51, 0x00 }, 357 { 52, 0x00 }, { 53, 0x12 }, { 54, 0x00 }, { 55, 0x00 }, 358 { 56, 0x00 }, { 57, 0x00 }, { 58, 0x00 }, { 59, 0x44 }, 359 { 60, 0x00 }, { 61, 0x01 }, { 62, 0x00 }, { 63, 0x00 }, 360 { 64, 0x00 }, { 65, 0x00 }, { 66, 0x00 }, { 67, 0x00 }, 361 { 68, 0x00 }, { 69, 0x00 }, { 70, 0x00 }, { 71, 0x00 }, 362 { 72, 0x00 }, { 73, 0x00 }, { 74, 0x00 }, { 75, 0x00 }, 363 { 76, 0x00 }, { 77, 0x00 }, { 78, 0x00 }, { 79, 0x00 }, 364 { 80, 0x00 }, { 81, 0x00 }, { 82, 0x88 }, { 83, 0x00 }, 365 { 84, 0x00 }, { 85, 0x00 }, { 86, 0x00 }, { 87, 0x00 }, 366 { 88, 0x7f }, { 89, 0x00 }, { 90, 0x00 }, { 91, 0x00 }, 367 { 92, 0x00 }, { 93, 0x00 }, { 94, 0x00 }, { 95, 0x00 }, 368 { 96, 0x7f }, { 97, 0x00 }, { 98, 0x00 }, { 99, 0x00 }, 369 { 100, 0x00 }, { 101, 0x00 }, { 102, 0x00 }, { 103, 0x00 }, 370 { 104, 0x00 }, { 105, 0x00 }, { 106, 0x00 }, { 107, 0x00 }, 371 { 108, 0x00 }, { 109, 0x00 }, { 110, 0x00 }, { 111, 0x00 }, 372 { 112, 0x00 }, { 113, 0x00 }, { 114, 0x00 }, { 115, 0x00 }, 373 { 116, 0x00 }, { 117, 0x00 }, { 118, 0x00 }, { 119, 0x00 }, 374 { 120, 0x00 }, { 121, 0x00 }, { 122, 0x00 }, { 123, 0x00 }, 375 { 124, 0x00 }, { 125, 0x00 }, { 126, 0x00 }, { 127, 0x00 }, 376 377 /* Page 1 */ 378 { 128, 0x00 }, { 129, 0x00 }, { 130, 0x00 }, { 131, 0x00 }, 379 { 132, 0x00 }, { 133, 0x00 }, { 134, 0x00 }, { 135, 0x00 }, 380 { 136, 0x00 }, { 137, 0x00 }, { 138, 0x00 }, { 139, 0x00 }, 381 { 140, 0x00 }, { 141, 0x00 }, { 142, 0x00 }, { 143, 0x00 }, 382 { 144, 0x00 }, { 145, 0x00 }, { 146, 0x00 }, { 147, 0x00 }, 383 { 148, 0x00 }, { 149, 0x00 }, { 150, 0x00 }, { 151, 0x00 }, 384 { 152, 0x00 }, { 153, 0x00 }, { 154, 0x00 }, { 155, 0x00 }, 385 { 156, 0x00 }, { 157, 0x00 }, { 158, 0x00 }, { 159, 0x00 }, 386 { 160, 0x00 }, { 161, 0x00 }, { 162, 0x00 }, { 163, 0x00 }, 387 { 164, 0x00 }, { 165, 0x00 }, { 166, 0x00 }, { 167, 0x00 }, 388 { 168, 0x00 }, { 169, 0x00 }, { 170, 0x00 }, { 171, 0x00 }, 389 { 172, 0x00 }, { 173, 0x00 }, { 174, 0x00 }, { 175, 0x00 }, 390 { 176, 0x00 }, { 177, 0x00 }, { 178, 0x00 }, { 179, 0x00 }, 391 { 180, 0xff }, { 181, 0x00 }, { 182, 0x3f }, { 183, 0xff }, 392 { 184, 0x00 }, { 185, 0x3f }, { 186, 0x00 }, { 187, 0x80 }, 393 { 188, 0x80 }, { 189, 0x00 }, { 190, 0x00 }, { 191, 0x00 }, 394 395 /* Page 4 */ 396 { 1024, 0x00 }, { 1026, 0x01 }, { 1027, 0x17 }, 397 { 1028, 0x01 }, { 1029, 0x17 }, { 1030, 0x7d }, { 1031, 0xd3 }, 398 { 1032, 0x7f }, { 1033, 0xff }, { 1034, 0x00 }, { 1035, 0x00 }, 399 { 1036, 0x00 }, { 1037, 0x00 }, { 1038, 0x7f }, { 1039, 0xff }, 400 { 1040, 0x00 }, { 1041, 0x00 }, { 1042, 0x00 }, { 1043, 0x00 }, 401 { 1044, 0x00 }, { 1045, 0x00 }, { 1046, 0x00 }, { 1047, 0x00 }, 402 { 1048, 0x7f }, { 1049, 0xff }, { 1050, 0x00 }, { 1051, 0x00 }, 403 { 1052, 0x00 }, { 1053, 0x00 }, { 1054, 0x00 }, { 1055, 0x00 }, 404 { 1056, 0x00 }, { 1057, 0x00 }, { 1058, 0x7f }, { 1059, 0xff }, 405 { 1060, 0x00 }, { 1061, 0x00 }, { 1062, 0x00 }, { 1063, 0x00 }, 406 { 1064, 0x00 }, { 1065, 0x00 }, { 1066, 0x00 }, { 1067, 0x00 }, 407 { 1068, 0x7f }, { 1069, 0xff }, { 1070, 0x00 }, { 1071, 0x00 }, 408 { 1072, 0x00 }, { 1073, 0x00 }, { 1074, 0x00 }, { 1075, 0x00 }, 409 { 1076, 0x00 }, { 1077, 0x00 }, { 1078, 0x7f }, { 1079, 0xff }, 410 { 1080, 0x00 }, { 1081, 0x00 }, { 1082, 0x00 }, { 1083, 0x00 }, 411 { 1084, 0x00 }, { 1085, 0x00 }, { 1086, 0x00 }, { 1087, 0x00 }, 412 { 1088, 0x00 }, { 1089, 0x00 }, { 1090, 0x00 }, { 1091, 0x00 }, 413 { 1092, 0x00 }, { 1093, 0x00 }, { 1094, 0x00 }, { 1095, 0x00 }, 414 { 1096, 0x00 }, { 1097, 0x00 }, { 1098, 0x00 }, { 1099, 0x00 }, 415 { 1100, 0x00 }, { 1101, 0x00 }, { 1102, 0x00 }, { 1103, 0x00 }, 416 { 1104, 0x00 }, { 1105, 0x00 }, { 1106, 0x00 }, { 1107, 0x00 }, 417 { 1108, 0x00 }, { 1109, 0x00 }, { 1110, 0x00 }, { 1111, 0x00 }, 418 { 1112, 0x00 }, { 1113, 0x00 }, { 1114, 0x00 }, { 1115, 0x00 }, 419 { 1116, 0x00 }, { 1117, 0x00 }, { 1118, 0x00 }, { 1119, 0x00 }, 420 { 1120, 0x00 }, { 1121, 0x00 }, { 1122, 0x00 }, { 1123, 0x00 }, 421 { 1124, 0x00 }, { 1125, 0x00 }, { 1126, 0x00 }, { 1127, 0x00 }, 422 { 1128, 0x00 }, { 1129, 0x00 }, { 1130, 0x00 }, { 1131, 0x00 }, 423 { 1132, 0x00 }, { 1133, 0x00 }, { 1134, 0x00 }, { 1135, 0x00 }, 424 { 1136, 0x00 }, { 1137, 0x00 }, { 1138, 0x00 }, { 1139, 0x00 }, 425 { 1140, 0x00 }, { 1141, 0x00 }, { 1142, 0x00 }, { 1143, 0x00 }, 426 { 1144, 0x00 }, { 1145, 0x00 }, { 1146, 0x00 }, { 1147, 0x00 }, 427 { 1148, 0x00 }, { 1149, 0x00 }, { 1150, 0x00 }, { 1151, 0x00 }, 428 }; 429 adc3xxx_volatile_reg(struct device * dev,unsigned int reg)430 static bool adc3xxx_volatile_reg(struct device *dev, unsigned int reg) 431 { 432 switch (reg) { 433 case ADC3XXX_RESET: 434 return true; 435 default: 436 return false; 437 } 438 } 439 440 static const struct regmap_range_cfg adc3xxx_ranges[] = { 441 { 442 .range_min = 0, 443 .range_max = 5 * ADC3XXX_PAGE_SIZE, 444 .selector_reg = ADC3XXX_PAGE_SELECT, 445 .selector_mask = 0xff, 446 .selector_shift = 0, 447 .window_start = 0, 448 .window_len = ADC3XXX_PAGE_SIZE, 449 } 450 }; 451 452 static const struct regmap_config adc3xxx_regmap = { 453 .reg_bits = 8, 454 .val_bits = 8, 455 456 .reg_defaults = adc3xxx_defaults, 457 .num_reg_defaults = ARRAY_SIZE(adc3xxx_defaults), 458 459 .volatile_reg = adc3xxx_volatile_reg, 460 461 .cache_type = REGCACHE_RBTREE, 462 463 .ranges = adc3xxx_ranges, 464 .num_ranges = ARRAY_SIZE(adc3xxx_ranges), 465 .max_register = 5 * ADC3XXX_PAGE_SIZE, 466 }; 467 468 struct adc3xxx_rate_divs { 469 u32 mclk; 470 u32 rate; 471 u8 pll_p; 472 u8 pll_r; 473 u8 pll_j; 474 u16 pll_d; 475 u8 nadc; 476 u8 madc; 477 u8 aosr; 478 }; 479 480 /* 481 * PLL and Clock settings. 482 * If p member is 0, PLL is not used. 483 * The order of the entries in this table have the PLL entries before 484 * the non-PLL entries, so that the PLL modes are preferred unless 485 * the PLL mode setting says otherwise. 486 */ 487 static const struct adc3xxx_rate_divs adc3xxx_divs[] = { 488 /* mclk, rate, p, r, j, d, nadc, madc, aosr */ 489 /* 8k rate */ 490 { 12000000, 8000, 1, 1, 7, 1680, 42, 2, 128 }, 491 { 12288000, 8000, 1, 1, 7, 0000, 42, 2, 128 }, 492 /* 11.025k rate */ 493 { 12000000, 11025, 1, 1, 6, 8208, 29, 2, 128 }, 494 /* 16k rate */ 495 { 12000000, 16000, 1, 1, 7, 1680, 21, 2, 128 }, 496 { 12288000, 16000, 1, 1, 7, 0000, 21, 2, 128 }, 497 /* 22.05k rate */ 498 { 12000000, 22050, 1, 1, 7, 560, 15, 2, 128 }, 499 /* 32k rate */ 500 { 12000000, 32000, 1, 1, 8, 1920, 12, 2, 128 }, 501 { 12288000, 32000, 1, 1, 8, 0000, 12, 2, 128 }, 502 /* 44.1k rate */ 503 { 12000000, 44100, 1, 1, 7, 5264, 8, 2, 128 }, 504 /* 48k rate */ 505 { 12000000, 48000, 1, 1, 7, 1680, 7, 2, 128 }, 506 { 12288000, 48000, 1, 1, 7, 0000, 7, 2, 128 }, 507 { 24576000, 48000, 1, 1, 3, 5000, 7, 2, 128 }, /* With PLL */ 508 { 24576000, 48000, 0, 0, 0, 0000, 2, 2, 128 }, /* Without PLL */ 509 /* 88.2k rate */ 510 { 12000000, 88200, 1, 1, 7, 5264, 4, 4, 64 }, 511 /* 96k rate */ 512 { 12000000, 96000, 1, 1, 8, 1920, 4, 4, 64 }, 513 }; 514 adc3xxx_get_divs(struct device * dev,int mclk,int rate,int pll_mode)515 static int adc3xxx_get_divs(struct device *dev, int mclk, int rate, int pll_mode) 516 { 517 int i; 518 519 dev_dbg(dev, "mclk = %d, rate = %d, clock mode %u\n", 520 mclk, rate, pll_mode); 521 for (i = 0; i < ARRAY_SIZE(adc3xxx_divs); i++) { 522 const struct adc3xxx_rate_divs *mode = &adc3xxx_divs[i]; 523 524 /* Skip this entry if it doesn't fulfill the intended clock 525 * mode requirement. We consider anything besides the two 526 * modes below to be the same as ADC3XXX_PLL_AUTO. 527 */ 528 if ((pll_mode == ADC3XXX_PLL_BYPASS && mode->pll_p) || 529 (pll_mode == ADC3XXX_PLL_ENABLE && !mode->pll_p)) 530 continue; 531 532 if (mode->rate == rate && mode->mclk == mclk) 533 return i; 534 } 535 536 dev_info(dev, "Master clock rate %d and sample rate %d is not supported\n", 537 mclk, rate); 538 return -EINVAL; 539 } 540 adc3xxx_pll_delay(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)541 static int adc3xxx_pll_delay(struct snd_soc_dapm_widget *w, 542 struct snd_kcontrol *kcontrol, int event) 543 { 544 /* 10msec delay needed after PLL power-up to allow 545 * PLL and dividers to stabilize (datasheet p13). 546 */ 547 usleep_range(10000, 20000); 548 549 return 0; 550 } 551 adc3xxx_coefficient_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)552 static int adc3xxx_coefficient_info(struct snd_kcontrol *kcontrol, 553 struct snd_ctl_elem_info *uinfo) 554 { 555 int numcoeff = kcontrol->private_value >> 16; 556 557 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 558 uinfo->count = numcoeff; 559 uinfo->value.integer.min = 0; 560 uinfo->value.integer.max = 0xffff; /* all coefficients are 16 bit */ 561 return 0; 562 } 563 adc3xxx_coefficient_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)564 static int adc3xxx_coefficient_get(struct snd_kcontrol *kcontrol, 565 struct snd_ctl_elem_value *ucontrol) 566 { 567 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 568 int numcoeff = kcontrol->private_value >> 16; 569 int reg = kcontrol->private_value & 0xffff; 570 int index = 0; 571 572 for (index = 0; index < numcoeff; index++) { 573 unsigned int value_msb, value_lsb, value; 574 575 value_msb = snd_soc_component_read(component, reg++); 576 if ((int)value_msb < 0) 577 return (int)value_msb; 578 579 value_lsb = snd_soc_component_read(component, reg++); 580 if ((int)value_lsb < 0) 581 return (int)value_lsb; 582 583 value = (value_msb << 8) | value_lsb; 584 ucontrol->value.integer.value[index] = value; 585 } 586 587 return 0; 588 } 589 adc3xxx_coefficient_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)590 static int adc3xxx_coefficient_put(struct snd_kcontrol *kcontrol, 591 struct snd_ctl_elem_value *ucontrol) 592 { 593 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 594 int numcoeff = kcontrol->private_value >> 16; 595 int reg = kcontrol->private_value & 0xffff; 596 int index = 0; 597 int ret; 598 599 for (index = 0; index < numcoeff; index++) { 600 unsigned int value = ucontrol->value.integer.value[index]; 601 unsigned int value_msb = (value >> 8) & 0xff; 602 unsigned int value_lsb = value & 0xff; 603 604 ret = snd_soc_component_write(component, reg++, value_msb); 605 if (ret) 606 return ret; 607 608 ret = snd_soc_component_write(component, reg++, value_lsb); 609 if (ret) 610 return ret; 611 } 612 613 return 0; 614 } 615 616 /* All on-chip filters have coefficients which are expressed in terms of 617 * 16 bit values, so represent them as strings of 16-bit integers. 618 */ 619 #define TI_COEFFICIENTS(xname, reg, numcoeffs) { \ 620 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 621 .name = xname, \ 622 .info = adc3xxx_coefficient_info, \ 623 .get = adc3xxx_coefficient_get,\ 624 .put = adc3xxx_coefficient_put, \ 625 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 626 .private_value = reg | (numcoeffs << 16) \ 627 } 628 629 static const char * const adc_softstepping_text[] = { "1 step", "2 step", "off" }; 630 static SOC_ENUM_SINGLE_DECL(adc_softstepping_enum, ADC3XXX_ADC_DIGITAL, 0, 631 adc_softstepping_text); 632 633 static const char * const multiplier_text[] = { "1", "2", "4", "8", "16", "32", "64", "128" }; 634 static SOC_ENUM_SINGLE_DECL(left_agc_attack_mult_enum, 635 ADC3XXX_LEFT_CHN_AGC_4, 0, multiplier_text); 636 static SOC_ENUM_SINGLE_DECL(right_agc_attack_mult_enum, 637 ADC3XXX_RIGHT_CHN_AGC_4, 0, multiplier_text); 638 static SOC_ENUM_SINGLE_DECL(left_agc_decay_mult_enum, 639 ADC3XXX_LEFT_CHN_AGC_5, 0, multiplier_text); 640 static SOC_ENUM_SINGLE_DECL(right_agc_decay_mult_enum, 641 ADC3XXX_RIGHT_CHN_AGC_5, 0, multiplier_text); 642 643 static const char * const dither_dc_offset_text[] = { 644 "0mV", "15mV", "30mV", "45mV", "60mV", "75mV", "90mV", "105mV", 645 "-15mV", "-30mV", "-45mV", "-60mV", "-75mV", "-90mV", "-105mV" 646 }; 647 static const unsigned int dither_dc_offset_values[] = { 648 0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15 649 }; 650 static SOC_VALUE_ENUM_DOUBLE_DECL(dither_dc_offset_enum, 651 ADC3XXX_DITHER_CTRL, 652 4, 0, 0xf, dither_dc_offset_text, 653 dither_dc_offset_values); 654 655 static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 50, 0); 656 static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 50, 0); 657 static const DECLARE_TLV_DB_SCALE(adc_fine_tlv, -40, 10, 0); 658 /* AGC target: 8 values: -5.5, -8, -10, -12, -14, -17, -20, -24 dB */ 659 /* It would be nice to declare these in the order above, but empirically 660 * TLV_DB_SCALE_ITEM doesn't take lightly to the increment (second) parameter 661 * being negative, despite there being examples to the contrary in other 662 * drivers. So declare these in the order from lowest to highest, and 663 * set the invert flag in the SOC_DOUBLE_R_TLV declaration instead. 664 */ 665 static const DECLARE_TLV_DB_RANGE(agc_target_tlv, 666 0, 0, TLV_DB_SCALE_ITEM(-2400, 0, 0), 667 1, 3, TLV_DB_SCALE_ITEM(-2000, 300, 0), 668 4, 6, TLV_DB_SCALE_ITEM(-1200, 200, 0), 669 7, 7, TLV_DB_SCALE_ITEM(-550, 0, 0)); 670 /* Since the 'disabled' value (mute) is at the highest value in the dB 671 * range (i.e. just before -32 dB) rather than the lowest, we need to resort 672 * to using a TLV_DB_RANGE in order to get the mute value in the right place. 673 */ 674 static const DECLARE_TLV_DB_RANGE(agc_thresh_tlv, 675 0, 30, TLV_DB_SCALE_ITEM(-9000, 200, 0), 676 31, 31, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */ 677 /* AGC hysteresis: 4 values: 1, 2, 4 dB, disabled (= mute) */ 678 static const DECLARE_TLV_DB_RANGE(agc_hysteresis_tlv, 679 0, 1, TLV_DB_SCALE_ITEM(100, 100, 0), 680 2, 2, TLV_DB_SCALE_ITEM(400, 0, 0), 681 3, 3, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */ 682 static const DECLARE_TLV_DB_SCALE(agc_max_tlv, 0, 50, 0); 683 /* Input attenuation: -6 dB or 0 dB */ 684 static const DECLARE_TLV_DB_SCALE(input_attenuation_tlv, -600, 600, 0); 685 686 static const struct snd_kcontrol_new adc3xxx_snd_controls[] = { 687 SOC_DOUBLE_R_TLV("PGA Capture Volume", ADC3XXX_LEFT_APGA_CTRL, 688 ADC3XXX_RIGHT_APGA_CTRL, 0, 80, 0, pga_tlv), 689 SOC_DOUBLE("PGA Capture Switch", ADC3XXX_ADC_FGA, 7, 3, 1, 1), 690 SOC_DOUBLE_R("AGC Capture Switch", ADC3XXX_LEFT_CHN_AGC_1, 691 ADC3XXX_RIGHT_CHN_AGC_1, 7, 1, 0), 692 SOC_DOUBLE_R_TLV("AGC Target Level Capture Volume", ADC3XXX_LEFT_CHN_AGC_1, 693 ADC3XXX_RIGHT_CHN_AGC_2, 4, 0x07, 1, agc_target_tlv), 694 SOC_DOUBLE_R_TLV("AGC Noise Threshold Capture Volume", ADC3XXX_LEFT_CHN_AGC_2, 695 ADC3XXX_RIGHT_CHN_AGC_2, 1, 0x1f, 1, agc_thresh_tlv), 696 SOC_DOUBLE_R_TLV("AGC Hysteresis Capture Volume", ADC3XXX_LEFT_CHN_AGC_2, 697 ADC3XXX_RIGHT_CHN_AGC_2, 6, 3, 0, agc_hysteresis_tlv), 698 SOC_DOUBLE_R("AGC Clip Stepping Capture Switch", ADC3XXX_LEFT_CHN_AGC_2, 699 ADC3XXX_RIGHT_CHN_AGC_2, 0, 1, 0), 700 /* 701 * Oddly enough, the data sheet says the default value 702 * for the left/right AGC maximum gain register field 703 * (ADC3XXX_LEFT/RIGHT_CHN_AGC_3 bits 0..6) is 0x7f = 127 704 * (verified empirically) even though this value (indeed, above 705 * 0x50) is specified as 'Reserved. Do not use.' in the accompanying 706 * table in the data sheet. 707 */ 708 SOC_DOUBLE_R_TLV("AGC Maximum Capture Volume", ADC3XXX_LEFT_CHN_AGC_3, 709 ADC3XXX_RIGHT_CHN_AGC_3, 0, 0x50, 0, agc_max_tlv), 710 SOC_DOUBLE_R("AGC Attack Time", ADC3XXX_LEFT_CHN_AGC_4, 711 ADC3XXX_RIGHT_CHN_AGC_4, 3, 0x1f, 0), 712 /* Would like to have the multipliers as LR pairs, but there is 713 * no SOC_ENUM_foo which accepts two values in separate registers. 714 */ 715 SOC_ENUM("AGC Left Attack Time Multiplier", left_agc_attack_mult_enum), 716 SOC_ENUM("AGC Right Attack Time Multiplier", right_agc_attack_mult_enum), 717 SOC_DOUBLE_R("AGC Decay Time", ADC3XXX_LEFT_CHN_AGC_5, 718 ADC3XXX_RIGHT_CHN_AGC_5, 3, 0x1f, 0), 719 SOC_ENUM("AGC Left Decay Time Multiplier", left_agc_decay_mult_enum), 720 SOC_ENUM("AGC Right Decay Time Multiplier", right_agc_decay_mult_enum), 721 SOC_DOUBLE_R("AGC Noise Debounce", ADC3XXX_LEFT_CHN_AGC_6, 722 ADC3XXX_RIGHT_CHN_AGC_6, 0, 0x1f, 0), 723 SOC_DOUBLE_R("AGC Signal Debounce", ADC3XXX_LEFT_CHN_AGC_7, 724 ADC3XXX_RIGHT_CHN_AGC_7, 0, 0x0f, 0), 725 /* Read only register */ 726 SOC_DOUBLE_R_S_TLV("AGC Applied Capture Volume", ADC3XXX_LEFT_AGC_GAIN, 727 ADC3XXX_RIGHT_AGC_GAIN, 0, -24, 40, 6, 0, adc_tlv), 728 /* ADC soft stepping */ 729 SOC_ENUM("ADC Soft Stepping", adc_softstepping_enum), 730 /* Left/Right Input attenuation */ 731 SOC_SINGLE_TLV("Left Input IN_1L Capture Volume", 732 ADC3XXX_LEFT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv), 733 SOC_SINGLE_TLV("Left Input IN_2L Capture Volume", 734 ADC3XXX_LEFT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv), 735 SOC_SINGLE_TLV("Left Input IN_3L Capture Volume", 736 ADC3XXX_LEFT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv), 737 SOC_SINGLE_TLV("Left Input IN_1R Capture Volume", 738 ADC3XXX_LEFT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv), 739 SOC_SINGLE_TLV("Left Input DIF_2L_3L Capture Volume", 740 ADC3XXX_LEFT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv), 741 SOC_SINGLE_TLV("Left Input DIF_1L_1R Capture Volume", 742 ADC3XXX_LEFT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv), 743 SOC_SINGLE_TLV("Left Input DIF_2R_3R Capture Volume", 744 ADC3XXX_LEFT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv), 745 SOC_SINGLE_TLV("Right Input IN_1R Capture Volume", 746 ADC3XXX_RIGHT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv), 747 SOC_SINGLE_TLV("Right Input IN_2R Capture Volume", 748 ADC3XXX_RIGHT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv), 749 SOC_SINGLE_TLV("Right Input IN_3R Capture Volume", 750 ADC3XXX_RIGHT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv), 751 SOC_SINGLE_TLV("Right Input IN_1L Capture Volume", 752 ADC3XXX_RIGHT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv), 753 SOC_SINGLE_TLV("Right Input DIF_2R_3R Capture Volume", 754 ADC3XXX_RIGHT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv), 755 SOC_SINGLE_TLV("Right Input DIF_1L_1R Capture Volume", 756 ADC3XXX_RIGHT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv), 757 SOC_SINGLE_TLV("Right Input DIF_2L_3L Capture Volume", 758 ADC3XXX_RIGHT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv), 759 SOC_DOUBLE_R_S_TLV("ADC Volume Control Capture Volume", ADC3XXX_LADC_VOL, 760 ADC3XXX_RADC_VOL, 0, -24, 40, 6, 0, adc_tlv), 761 /* Empirically, the following doesn't work the way it's supposed 762 * to. Values 0, -0.1, -0.2 and -0.3 dB result in the same level, and 763 * -0.4 dB drops about 0.12 dB on a specific chip. 764 */ 765 SOC_DOUBLE_TLV("ADC Fine Volume Control Capture Volume", ADC3XXX_ADC_FGA, 766 4, 0, 4, 1, adc_fine_tlv), 767 SOC_SINGLE("Left ADC Unselected CM Bias Capture Switch", 768 ADC3XXX_LEFT_PGA_SEL_2, 6, 1, 0), 769 SOC_SINGLE("Right ADC Unselected CM Bias Capture Switch", 770 ADC3XXX_RIGHT_PGA_SEL_2, 6, 1, 0), 771 SOC_ENUM("Dither Control DC Offset", dither_dc_offset_enum), 772 773 /* Coefficient memory for miniDSP. */ 774 /* For the default PRB_R1 processing block, the only available 775 * filter is the first order IIR. 776 */ 777 778 TI_COEFFICIENTS("Left ADC IIR Coefficients N0 N1 D1", 779 ADC3XXX_LEFT_ADC_IIR_COEFF_N0_MSB, 3), 780 781 TI_COEFFICIENTS("Right ADC IIR Coefficients N0 N1 D1", 782 ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_MSB, 3), 783 }; 784 785 /* Left input selection, Single Ended inputs and Differential inputs */ 786 static const struct snd_kcontrol_new left_input_mixer_controls[] = { 787 SOC_DAPM_SINGLE("IN_1L Capture Switch", 788 ADC3XXX_LEFT_PGA_SEL_1, 1, 0x1, 1), 789 SOC_DAPM_SINGLE("IN_2L Capture Switch", 790 ADC3XXX_LEFT_PGA_SEL_1, 3, 0x1, 1), 791 SOC_DAPM_SINGLE("IN_3L Capture Switch", 792 ADC3XXX_LEFT_PGA_SEL_1, 5, 0x1, 1), 793 SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch", 794 ADC3XXX_LEFT_PGA_SEL_1, 7, 0x1, 1), 795 SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch", 796 ADC3XXX_LEFT_PGA_SEL_2, 5, 0x1, 1), 797 SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch", 798 ADC3XXX_LEFT_PGA_SEL_2, 3, 0x1, 1), 799 SOC_DAPM_SINGLE("IN_1R Capture Switch", 800 ADC3XXX_LEFT_PGA_SEL_2, 1, 0x1, 1), 801 }; 802 803 /* Right input selection, Single Ended inputs and Differential inputs */ 804 static const struct snd_kcontrol_new right_input_mixer_controls[] = { 805 SOC_DAPM_SINGLE("IN_1R Capture Switch", 806 ADC3XXX_RIGHT_PGA_SEL_1, 1, 0x1, 1), 807 SOC_DAPM_SINGLE("IN_2R Capture Switch", 808 ADC3XXX_RIGHT_PGA_SEL_1, 3, 0x1, 1), 809 SOC_DAPM_SINGLE("IN_3R Capture Switch", 810 ADC3XXX_RIGHT_PGA_SEL_1, 5, 0x1, 1), 811 SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch", 812 ADC3XXX_RIGHT_PGA_SEL_1, 7, 0x1, 1), 813 SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch", 814 ADC3XXX_RIGHT_PGA_SEL_2, 5, 0x1, 1), 815 SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch", 816 ADC3XXX_RIGHT_PGA_SEL_2, 3, 0x1, 1), 817 SOC_DAPM_SINGLE("IN_1L Capture Switch", 818 ADC3XXX_RIGHT_PGA_SEL_2, 1, 0x1, 1), 819 }; 820 821 /* Left Digital Mic input for left ADC */ 822 static const struct snd_kcontrol_new left_input_dmic_controls[] = { 823 SOC_DAPM_SINGLE("Left ADC Capture Switch", 824 ADC3XXX_ADC_DIGITAL, 3, 0x1, 0), 825 }; 826 827 /* Right Digital Mic input for Right ADC */ 828 static const struct snd_kcontrol_new right_input_dmic_controls[] = { 829 SOC_DAPM_SINGLE("Right ADC Capture Switch", 830 ADC3XXX_ADC_DIGITAL, 2, 0x1, 0), 831 }; 832 833 /* DAPM widgets */ 834 static const struct snd_soc_dapm_widget adc3xxx_dapm_widgets[] = { 835 836 /* Left Input Selection */ 837 SND_SOC_DAPM_MIXER("Left Input", SND_SOC_NOPM, 0, 0, 838 &left_input_mixer_controls[0], 839 ARRAY_SIZE(left_input_mixer_controls)), 840 /* Right Input Selection */ 841 SND_SOC_DAPM_MIXER("Right Input", SND_SOC_NOPM, 0, 0, 842 &right_input_mixer_controls[0], 843 ARRAY_SIZE(right_input_mixer_controls)), 844 /* PGA selection */ 845 SND_SOC_DAPM_PGA("Left PGA", ADC3XXX_LEFT_APGA_CTRL, 7, 1, NULL, 0), 846 SND_SOC_DAPM_PGA("Right PGA", ADC3XXX_RIGHT_APGA_CTRL, 7, 1, NULL, 0), 847 848 /* Digital Microphone Input Control for Left/Right ADC */ 849 SND_SOC_DAPM_MIXER("Left DMic Input", SND_SOC_NOPM, 0, 0, 850 &left_input_dmic_controls[0], 851 ARRAY_SIZE(left_input_dmic_controls)), 852 SND_SOC_DAPM_MIXER("Right DMic Input", SND_SOC_NOPM, 0, 0, 853 &right_input_dmic_controls[0], 854 ARRAY_SIZE(right_input_dmic_controls)), 855 856 /* Left/Right ADC */ 857 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ADC3XXX_ADC_DIGITAL, 7, 0), 858 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ADC3XXX_ADC_DIGITAL, 6, 0), 859 860 /* Inputs */ 861 SND_SOC_DAPM_INPUT("IN_1L"), 862 SND_SOC_DAPM_INPUT("IN_1R"), 863 SND_SOC_DAPM_INPUT("IN_2L"), 864 SND_SOC_DAPM_INPUT("IN_2R"), 865 SND_SOC_DAPM_INPUT("IN_3L"), 866 SND_SOC_DAPM_INPUT("IN_3R"), 867 SND_SOC_DAPM_INPUT("DIFL_1L_1R"), 868 SND_SOC_DAPM_INPUT("DIFL_2L_3L"), 869 SND_SOC_DAPM_INPUT("DIFL_2R_3R"), 870 SND_SOC_DAPM_INPUT("DIFR_1L_1R"), 871 SND_SOC_DAPM_INPUT("DIFR_2L_3L"), 872 SND_SOC_DAPM_INPUT("DIFR_2R_3R"), 873 SND_SOC_DAPM_INPUT("DMic_L"), 874 SND_SOC_DAPM_INPUT("DMic_R"), 875 876 /* Digital audio interface output */ 877 SND_SOC_DAPM_AIF_OUT("AIF_OUT", "Capture", 0, SND_SOC_NOPM, 0, 0), 878 879 /* Clocks */ 880 SND_SOC_DAPM_SUPPLY("PLL_CLK", ADC3XXX_PLL_PROG_PR, ADC3XXX_ENABLE_PLL_SHIFT, 881 0, adc3xxx_pll_delay, SND_SOC_DAPM_POST_PMU), 882 883 SND_SOC_DAPM_SUPPLY("ADC_CLK", ADC3XXX_ADC_NADC, ADC3XXX_ENABLE_NADC_SHIFT, 884 0, NULL, 0), 885 SND_SOC_DAPM_SUPPLY("ADC_MOD_CLK", ADC3XXX_ADC_MADC, ADC3XXX_ENABLE_MADC_SHIFT, 886 0, NULL, 0), 887 888 /* This refers to the generated BCLK in master mode. */ 889 SND_SOC_DAPM_SUPPLY("BCLK", ADC3XXX_BCLK_N_DIV, ADC3XXX_ENABLE_BCLK_SHIFT, 890 0, NULL, 0), 891 }; 892 893 static const struct snd_soc_dapm_route adc3xxx_intercon[] = { 894 /* Left input selection from switches */ 895 { "Left Input", "IN_1L Capture Switch", "IN_1L" }, 896 { "Left Input", "IN_2L Capture Switch", "IN_2L" }, 897 { "Left Input", "IN_3L Capture Switch", "IN_3L" }, 898 { "Left Input", "DIF_2L_3L Capture Switch", "DIFL_2L_3L" }, 899 { "Left Input", "DIF_1L_1R Capture Switch", "DIFL_1L_1R" }, 900 { "Left Input", "DIF_2R_3R Capture Switch", "DIFL_2R_3R" }, 901 { "Left Input", "IN_1R Capture Switch", "IN_1R" }, 902 903 /* Left input selection to left PGA */ 904 { "Left PGA", NULL, "Left Input" }, 905 906 /* Left PGA to left ADC */ 907 { "Left ADC", NULL, "Left PGA" }, 908 909 /* Right input selection from switches */ 910 { "Right Input", "IN_1R Capture Switch", "IN_1R" }, 911 { "Right Input", "IN_2R Capture Switch", "IN_2R" }, 912 { "Right Input", "IN_3R Capture Switch", "IN_3R" }, 913 { "Right Input", "DIF_2R_3R Capture Switch", "DIFR_2R_3R" }, 914 { "Right Input", "DIF_1L_1R Capture Switch", "DIFR_1L_1R" }, 915 { "Right Input", "DIF_2L_3L Capture Switch", "DIFR_2L_3L" }, 916 { "Right Input", "IN_1L Capture Switch", "IN_1L" }, 917 918 /* Right input selection to right PGA */ 919 { "Right PGA", NULL, "Right Input" }, 920 921 /* Right PGA to right ADC */ 922 { "Right ADC", NULL, "Right PGA" }, 923 924 /* Left DMic Input selection from switch */ 925 { "Left DMic Input", "Left ADC Capture Switch", "DMic_L" }, 926 927 /* Left DMic to left ADC */ 928 { "Left ADC", NULL, "Left DMic Input" }, 929 930 /* Right DMic Input selection from switch */ 931 { "Right DMic Input", "Right ADC Capture Switch", "DMic_R" }, 932 933 /* Right DMic to right ADC */ 934 { "Right ADC", NULL, "Right DMic Input" }, 935 936 /* ADC to AIF output */ 937 { "AIF_OUT", NULL, "Left ADC" }, 938 { "AIF_OUT", NULL, "Right ADC" }, 939 940 /* Clocking */ 941 { "ADC_MOD_CLK", NULL, "ADC_CLK" }, 942 { "Left ADC", NULL, "ADC_MOD_CLK" }, 943 { "Right ADC", NULL, "ADC_MOD_CLK" }, 944 945 { "BCLK", NULL, "ADC_CLK" }, 946 }; 947 948 static const struct snd_soc_dapm_route adc3xxx_pll_intercon[] = { 949 { "ADC_CLK", NULL, "PLL_CLK" }, 950 }; 951 952 static const struct snd_soc_dapm_route adc3xxx_bclk_out_intercon[] = { 953 { "AIF_OUT", NULL, "BCLK" } 954 }; 955 adc3xxx_gpio_request(struct gpio_chip * chip,unsigned int offset)956 static int adc3xxx_gpio_request(struct gpio_chip *chip, unsigned int offset) 957 { 958 struct adc3xxx *adc3xxx = gpiochip_get_data(chip); 959 960 if (offset >= ADC3XXX_GPIOS_MAX) 961 return -EINVAL; 962 963 /* GPIO1 is offset 0, GPIO2 is offset 1 */ 964 /* We check here that the GPIO pins are either not configured in the 965 * DT, or that they purposely are set as outputs. 966 * (Input mode not yet implemented). 967 */ 968 if (adc3xxx->gpio_cfg[offset] != 0 && 969 adc3xxx->gpio_cfg[offset] != ADC3XXX_GPIO_GPO + 1) 970 return -EINVAL; 971 972 return 0; 973 } 974 adc3xxx_gpio_direction_out(struct gpio_chip * chip,unsigned int offset,int value)975 static int adc3xxx_gpio_direction_out(struct gpio_chip *chip, 976 unsigned int offset, int value) 977 { 978 struct adc3xxx *adc3xxx = gpiochip_get_data(chip); 979 980 /* Set GPIO output function. */ 981 return regmap_update_bits(adc3xxx->regmap, 982 adc3xxx_gpio_ctrl_reg[offset], 983 ADC3XXX_GPIO_CTRL_CFG_MASK | 984 ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK, 985 ADC3XXX_GPIO_GPO << ADC3XXX_GPIO_CTRL_CFG_SHIFT | 986 !!value << ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT); 987 } 988 989 /* With only GPIO outputs configured, we never get the .direction_out call, 990 * so we set the output mode and output value in the same call. Hence 991 * .set in practice does the same thing as .direction_out . 992 */ adc3xxx_gpio_set(struct gpio_chip * chip,unsigned int offset,int value)993 static void adc3xxx_gpio_set(struct gpio_chip *chip, unsigned int offset, 994 int value) 995 { 996 (void) adc3xxx_gpio_direction_out(chip, offset, value); 997 } 998 999 /* Even though we only support GPIO output for now, some GPIO clients 1000 * want to read the current pin state using the .get callback. 1001 */ adc3xxx_gpio_get(struct gpio_chip * chip,unsigned int offset)1002 static int adc3xxx_gpio_get(struct gpio_chip *chip, unsigned int offset) 1003 { 1004 struct adc3xxx *adc3xxx = gpiochip_get_data(chip); 1005 unsigned int regval; 1006 int ret; 1007 1008 /* We only allow output pins, so just read the value set in the output 1009 * pin register field. 1010 */ 1011 ret = regmap_read(adc3xxx->regmap, adc3xxx_gpio_ctrl_reg[offset], ®val); 1012 if (ret) 1013 return ret; 1014 return !!(regval & ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK); 1015 } 1016 1017 static const struct gpio_chip adc3xxx_gpio_chip = { 1018 .label = "adc3xxx", 1019 .owner = THIS_MODULE, 1020 .request = adc3xxx_gpio_request, 1021 .direction_output = adc3xxx_gpio_direction_out, 1022 .set = adc3xxx_gpio_set, 1023 .get = adc3xxx_gpio_get, 1024 .can_sleep = 1, 1025 }; 1026 adc3xxx_free_gpio(struct adc3xxx * adc3xxx)1027 static void adc3xxx_free_gpio(struct adc3xxx *adc3xxx) 1028 { 1029 #ifdef CONFIG_GPIOLIB 1030 gpiochip_remove(&adc3xxx->gpio_chip); 1031 #endif 1032 } 1033 adc3xxx_init_gpio(struct adc3xxx * adc3xxx)1034 static void adc3xxx_init_gpio(struct adc3xxx *adc3xxx) 1035 { 1036 int gpio, micbias; 1037 int ret; 1038 1039 adc3xxx->gpio_chip = adc3xxx_gpio_chip; 1040 adc3xxx->gpio_chip.ngpio = ADC3XXX_GPIOS_MAX; 1041 adc3xxx->gpio_chip.parent = adc3xxx->dev; 1042 adc3xxx->gpio_chip.base = -1; 1043 1044 ret = gpiochip_add_data(&adc3xxx->gpio_chip, adc3xxx); 1045 if (ret) 1046 dev_err(adc3xxx->dev, "Failed to add gpios: %d\n", ret); 1047 1048 /* Set up potential GPIO configuration from the devicetree. 1049 * This allows us to set up things which are not software 1050 * controllable GPIOs, such as PDM microphone I/O, 1051 */ 1052 for (gpio = 0; gpio < ADC3XXX_GPIOS_MAX; gpio++) { 1053 unsigned int cfg = adc3xxx->gpio_cfg[gpio]; 1054 1055 if (cfg) { 1056 cfg--; /* actual value to use is stored +1 */ 1057 regmap_update_bits(adc3xxx->regmap, 1058 adc3xxx_gpio_ctrl_reg[gpio], 1059 ADC3XXX_GPIO_CTRL_CFG_MASK, 1060 cfg << ADC3XXX_GPIO_CTRL_CFG_SHIFT); 1061 } 1062 } 1063 1064 /* Set up micbias voltage */ 1065 for (micbias = 0; micbias < ADC3XXX_MICBIAS_PINS; micbias++) { 1066 unsigned int vg = adc3xxx->micbias_vg[micbias]; 1067 1068 regmap_update_bits(adc3xxx->regmap, 1069 ADC3XXX_MICBIAS_CTRL, 1070 ADC3XXX_MICBIAS_MASK << adc3xxx_micbias_shift[micbias], 1071 vg << adc3xxx_micbias_shift[micbias]); 1072 } 1073 } 1074 adc3xxx_parse_dt_gpio(struct adc3xxx * adc3xxx,const char * propname,unsigned int * cfg)1075 static int adc3xxx_parse_dt_gpio(struct adc3xxx *adc3xxx, 1076 const char *propname, unsigned int *cfg) 1077 { 1078 struct device *dev = adc3xxx->dev; 1079 struct device_node *np = dev->of_node; 1080 unsigned int val; 1081 1082 if (!of_property_read_u32(np, propname, &val)) { 1083 if (val & ~15 || val == 7 || val >= 11) { 1084 dev_err(dev, "Invalid property value for '%s'\n", propname); 1085 return -EINVAL; 1086 } 1087 if (val == ADC3XXX_GPIO_GPI) 1088 dev_warn(dev, "GPIO Input read not yet implemented\n"); 1089 *cfg = val + 1; /* 0 => not set up, all others shifted +1 */ 1090 } 1091 return 0; 1092 } 1093 adc3xxx_parse_dt_micbias(struct adc3xxx * adc3xxx,const char * propname,unsigned int * vg)1094 static int adc3xxx_parse_dt_micbias(struct adc3xxx *adc3xxx, 1095 const char *propname, unsigned int *vg) 1096 { 1097 struct device *dev = adc3xxx->dev; 1098 struct device_node *np = dev->of_node; 1099 unsigned int val; 1100 1101 if (!of_property_read_u32(np, propname, &val)) { 1102 if (val > ADC3XXX_MICBIAS_AVDD) { 1103 dev_err(dev, "Invalid property value for '%s'\n", propname); 1104 return -EINVAL; 1105 } 1106 *vg = val; 1107 } 1108 return 0; 1109 } 1110 adc3xxx_parse_pll_mode(uint32_t val,unsigned int * pll_mode)1111 static int adc3xxx_parse_pll_mode(uint32_t val, unsigned int *pll_mode) 1112 { 1113 if (val != ADC3XXX_PLL_ENABLE && val != ADC3XXX_PLL_BYPASS && 1114 val != ADC3XXX_PLL_AUTO) 1115 return -EINVAL; 1116 1117 *pll_mode = val; 1118 1119 return 0; 1120 } 1121 adc3xxx_setup_pll(struct snd_soc_component * component,int div_entry)1122 static void adc3xxx_setup_pll(struct snd_soc_component *component, 1123 int div_entry) 1124 { 1125 int i = div_entry; 1126 1127 /* P & R values */ 1128 snd_soc_component_write(component, ADC3XXX_PLL_PROG_PR, 1129 (adc3xxx_divs[i].pll_p << ADC3XXX_PLLP_SHIFT) | 1130 (adc3xxx_divs[i].pll_r << ADC3XXX_PLLR_SHIFT)); 1131 /* J value */ 1132 snd_soc_component_write(component, ADC3XXX_PLL_PROG_J, 1133 adc3xxx_divs[i].pll_j & ADC3XXX_PLLJ_MASK); 1134 /* D value */ 1135 snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_LSB, 1136 adc3xxx_divs[i].pll_d & ADC3XXX_PLLD_LSB_MASK); 1137 snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_MSB, 1138 (adc3xxx_divs[i].pll_d >> 8) & ADC3XXX_PLLD_MSB_MASK); 1139 } 1140 adc3xxx_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)1141 static int adc3xxx_hw_params(struct snd_pcm_substream *substream, 1142 struct snd_pcm_hw_params *params, 1143 struct snd_soc_dai *dai) 1144 { 1145 struct snd_soc_component *component = dai->component; 1146 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(dai->component); 1147 struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); 1148 int i, width = 16; 1149 u8 iface_len, bdiv; 1150 1151 i = adc3xxx_get_divs(component->dev, adc3xxx->sysclk, 1152 params_rate(params), adc3xxx->pll_mode); 1153 1154 if (i < 0) 1155 return i; 1156 1157 /* select data word length */ 1158 switch (params_width(params)) { 1159 case 16: 1160 iface_len = ADC3XXX_IFACE_16BITS; 1161 width = 16; 1162 break; 1163 case 20: 1164 iface_len = ADC3XXX_IFACE_20BITS; 1165 width = 20; 1166 break; 1167 case 24: 1168 iface_len = ADC3XXX_IFACE_24BITS; 1169 width = 24; 1170 break; 1171 case 32: 1172 iface_len = ADC3XXX_IFACE_32BITS; 1173 width = 32; 1174 break; 1175 default: 1176 dev_err(component->dev, "Unsupported serial data format\n"); 1177 return -EINVAL; 1178 } 1179 snd_soc_component_update_bits(component, ADC3XXX_INTERFACE_CTRL_1, 1180 ADC3XXX_WLENGTH_MASK, iface_len); 1181 if (adc3xxx_divs[i].pll_p) { /* If PLL used for this mode */ 1182 adc3xxx_setup_pll(component, i); 1183 snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_USE_PLL); 1184 if (!adc3xxx->use_pll) { 1185 snd_soc_dapm_add_routes(dapm, adc3xxx_pll_intercon, 1186 ARRAY_SIZE(adc3xxx_pll_intercon)); 1187 adc3xxx->use_pll = 1; 1188 } 1189 } else { 1190 snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_NO_PLL); 1191 if (adc3xxx->use_pll) { 1192 snd_soc_dapm_del_routes(dapm, adc3xxx_pll_intercon, 1193 ARRAY_SIZE(adc3xxx_pll_intercon)); 1194 adc3xxx->use_pll = 0; 1195 } 1196 } 1197 1198 /* NADC */ 1199 snd_soc_component_update_bits(component, ADC3XXX_ADC_NADC, 1200 ADC3XXX_NADC_MASK, adc3xxx_divs[i].nadc); 1201 /* MADC */ 1202 snd_soc_component_update_bits(component, ADC3XXX_ADC_MADC, 1203 ADC3XXX_MADC_MASK, adc3xxx_divs[i].madc); 1204 /* AOSR */ 1205 snd_soc_component_update_bits(component, ADC3XXX_ADC_AOSR, 1206 ADC3XXX_AOSR_MASK, adc3xxx_divs[i].aosr); 1207 /* BDIV N Value */ 1208 /* BCLK is (by default) set up to be derived from ADC_CLK */ 1209 bdiv = (adc3xxx_divs[i].aosr * adc3xxx_divs[i].madc) / (2 * width); 1210 snd_soc_component_update_bits(component, ADC3XXX_BCLK_N_DIV, 1211 ADC3XXX_BDIV_MASK, bdiv); 1212 1213 return 0; 1214 } 1215 adc3xxx_pll_mode_text(int pll_mode)1216 static const char *adc3xxx_pll_mode_text(int pll_mode) 1217 { 1218 switch (pll_mode) { 1219 case ADC3XXX_PLL_AUTO: 1220 return "PLL auto"; 1221 case ADC3XXX_PLL_ENABLE: 1222 return "PLL enable"; 1223 case ADC3XXX_PLL_BYPASS: 1224 return "PLL bypass"; 1225 default: 1226 break; 1227 } 1228 1229 return "PLL unknown"; 1230 } 1231 adc3xxx_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)1232 static int adc3xxx_set_dai_sysclk(struct snd_soc_dai *codec_dai, 1233 int clk_id, unsigned int freq, int dir) 1234 { 1235 struct snd_soc_component *component = codec_dai->component; 1236 struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); 1237 int ret; 1238 1239 ret = adc3xxx_parse_pll_mode(clk_id, &adc3xxx->pll_mode); 1240 if (ret < 0) 1241 return ret; 1242 1243 adc3xxx->sysclk = freq; 1244 dev_dbg(component->dev, "Set sysclk to %u Hz, %s\n", 1245 freq, adc3xxx_pll_mode_text(adc3xxx->pll_mode)); 1246 return 0; 1247 } 1248 adc3xxx_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)1249 static int adc3xxx_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 1250 { 1251 struct snd_soc_component *component = codec_dai->component; 1252 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 1253 struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); 1254 u8 clkdir = 0, format = 0; 1255 int master = 0; 1256 int ret; 1257 1258 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 1259 case SND_SOC_DAIFMT_CBP_CFP: 1260 master = 1; 1261 clkdir = ADC3XXX_BCLK_MASTER | ADC3XXX_WCLK_MASTER; 1262 break; 1263 case SND_SOC_DAIFMT_CBC_CFC: 1264 master = 0; 1265 break; 1266 default: 1267 dev_err(component->dev, "Invalid DAI clock setup\n"); 1268 return -EINVAL; 1269 } 1270 1271 /* 1272 * match both interface format and signal polarities since they 1273 * are fixed 1274 */ 1275 switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK)) { 1276 case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF: 1277 format = ADC3XXX_FORMAT_I2S; 1278 break; 1279 case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF: 1280 format = ADC3XXX_FORMAT_DSP; 1281 break; 1282 case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF: 1283 format = ADC3XXX_FORMAT_DSP; 1284 break; 1285 case SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF: 1286 format = ADC3XXX_FORMAT_RJF; 1287 break; 1288 case SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF: 1289 format = ADC3XXX_FORMAT_LJF; 1290 break; 1291 default: 1292 dev_err(component->dev, "Invalid DAI format\n"); 1293 return -EINVAL; 1294 } 1295 1296 /* Add/del route enabling BCLK output as applicable */ 1297 if (master && !adc3xxx->master) 1298 snd_soc_dapm_add_routes(dapm, adc3xxx_bclk_out_intercon, 1299 ARRAY_SIZE(adc3xxx_bclk_out_intercon)); 1300 else if (!master && adc3xxx->master) 1301 snd_soc_dapm_del_routes(dapm, adc3xxx_bclk_out_intercon, 1302 ARRAY_SIZE(adc3xxx_bclk_out_intercon)); 1303 adc3xxx->master = master; 1304 1305 /* set clock direction and format */ 1306 ret = snd_soc_component_update_bits(component, 1307 ADC3XXX_INTERFACE_CTRL_1, 1308 ADC3XXX_CLKDIR_MASK | ADC3XXX_FORMAT_MASK, 1309 clkdir | format); 1310 if (ret < 0) 1311 return ret; 1312 return 0; 1313 } 1314 1315 static const struct snd_soc_dai_ops adc3xxx_dai_ops = { 1316 .hw_params = adc3xxx_hw_params, 1317 .set_sysclk = adc3xxx_set_dai_sysclk, 1318 .set_fmt = adc3xxx_set_dai_fmt, 1319 }; 1320 1321 static struct snd_soc_dai_driver adc3xxx_dai = { 1322 .name = "tlv320adc3xxx-hifi", 1323 .capture = { 1324 .stream_name = "Capture", 1325 .channels_min = 1, 1326 .channels_max = 2, 1327 .rates = ADC3XXX_RATES, 1328 .formats = ADC3XXX_FORMATS, 1329 }, 1330 .ops = &adc3xxx_dai_ops, 1331 }; 1332 1333 static const struct snd_soc_component_driver soc_component_dev_adc3xxx = { 1334 .controls = adc3xxx_snd_controls, 1335 .num_controls = ARRAY_SIZE(adc3xxx_snd_controls), 1336 .dapm_widgets = adc3xxx_dapm_widgets, 1337 .num_dapm_widgets = ARRAY_SIZE(adc3xxx_dapm_widgets), 1338 .dapm_routes = adc3xxx_intercon, 1339 .num_dapm_routes = ARRAY_SIZE(adc3xxx_intercon), 1340 .endianness = 1, 1341 }; 1342 1343 static const struct i2c_device_id adc3xxx_i2c_id[] = { 1344 { "tlv320adc3001", ADC3001 }, 1345 { "tlv320adc3101", ADC3101 }, 1346 {} 1347 }; 1348 MODULE_DEVICE_TABLE(i2c, adc3xxx_i2c_id); 1349 adc3xxx_i2c_probe(struct i2c_client * i2c)1350 static int adc3xxx_i2c_probe(struct i2c_client *i2c) 1351 { 1352 struct device *dev = &i2c->dev; 1353 struct adc3xxx *adc3xxx = NULL; 1354 const struct i2c_device_id *id; 1355 int ret; 1356 1357 adc3xxx = devm_kzalloc(dev, sizeof(struct adc3xxx), GFP_KERNEL); 1358 if (!adc3xxx) 1359 return -ENOMEM; 1360 adc3xxx->dev = dev; 1361 1362 adc3xxx->rst_pin = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); 1363 if (IS_ERR(adc3xxx->rst_pin)) { 1364 return dev_err_probe(dev, PTR_ERR(adc3xxx->rst_pin), 1365 "Failed to request rst_pin\n"); 1366 } 1367 1368 adc3xxx->mclk = devm_clk_get(dev, NULL); 1369 if (IS_ERR(adc3xxx->mclk)) { 1370 /* 1371 * The chip itself supports running off the BCLK either 1372 * directly or via the PLL, but the driver does not (yet), so 1373 * having a specified mclk is required. Otherwise, we could 1374 * use the lack of a clocks property to indicate when BCLK is 1375 * intended as the clock source. 1376 */ 1377 return dev_err_probe(dev, PTR_ERR(adc3xxx->mclk), 1378 "Failed to acquire MCLK\n"); 1379 } else if (adc3xxx->mclk) { 1380 ret = clk_prepare_enable(adc3xxx->mclk); 1381 if (ret < 0) 1382 return ret; 1383 dev_dbg(dev, "Enabled MCLK, freq %lu Hz\n", clk_get_rate(adc3xxx->mclk)); 1384 } 1385 1386 ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmdin-gpio1", &adc3xxx->gpio_cfg[0]); 1387 if (ret < 0) 1388 goto err_unprepare_mclk; 1389 ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmclk-gpio2", &adc3xxx->gpio_cfg[1]); 1390 if (ret < 0) 1391 goto err_unprepare_mclk; 1392 ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias1-vg", &adc3xxx->micbias_vg[0]); 1393 if (ret < 0) 1394 goto err_unprepare_mclk; 1395 ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias2-vg", &adc3xxx->micbias_vg[1]); 1396 if (ret < 0) 1397 goto err_unprepare_mclk; 1398 1399 adc3xxx->regmap = devm_regmap_init_i2c(i2c, &adc3xxx_regmap); 1400 if (IS_ERR(adc3xxx->regmap)) { 1401 ret = PTR_ERR(adc3xxx->regmap); 1402 goto err_unprepare_mclk; 1403 } 1404 1405 i2c_set_clientdata(i2c, adc3xxx); 1406 1407 id = i2c_match_id(adc3xxx_i2c_id, i2c); 1408 adc3xxx->type = id->driver_data; 1409 1410 /* Reset codec chip */ 1411 gpiod_set_value_cansleep(adc3xxx->rst_pin, 1); 1412 usleep_range(2000, 100000); /* Requirement: > 10 ns (datasheet p13) */ 1413 gpiod_set_value_cansleep(adc3xxx->rst_pin, 0); 1414 1415 /* Potentially set up pins used as GPIOs */ 1416 adc3xxx_init_gpio(adc3xxx); 1417 1418 ret = snd_soc_register_component(dev, 1419 &soc_component_dev_adc3xxx, &adc3xxx_dai, 1); 1420 if (ret < 0) { 1421 dev_err(dev, "Failed to register codec: %d\n", ret); 1422 goto err_unprepare_mclk; 1423 } 1424 1425 return 0; 1426 1427 err_unprepare_mclk: 1428 clk_disable_unprepare(adc3xxx->mclk); 1429 return ret; 1430 } 1431 adc3xxx_i2c_remove(struct i2c_client * client)1432 static void adc3xxx_i2c_remove(struct i2c_client *client) 1433 { 1434 struct adc3xxx *adc3xxx = i2c_get_clientdata(client); 1435 1436 if (adc3xxx->mclk) 1437 clk_disable_unprepare(adc3xxx->mclk); 1438 adc3xxx_free_gpio(adc3xxx); 1439 snd_soc_unregister_component(&client->dev); 1440 } 1441 1442 static const struct of_device_id tlv320adc3xxx_of_match[] = { 1443 { .compatible = "ti,tlv320adc3001", }, 1444 { .compatible = "ti,tlv320adc3101", }, 1445 {}, 1446 }; 1447 MODULE_DEVICE_TABLE(of, tlv320adc3xxx_of_match); 1448 1449 static struct i2c_driver adc3xxx_i2c_driver = { 1450 .driver = { 1451 .name = "tlv320adc3xxx-codec", 1452 .of_match_table = tlv320adc3xxx_of_match, 1453 }, 1454 .probe = adc3xxx_i2c_probe, 1455 .remove = adc3xxx_i2c_remove, 1456 .id_table = adc3xxx_i2c_id, 1457 }; 1458 1459 module_i2c_driver(adc3xxx_i2c_driver); 1460 1461 MODULE_DESCRIPTION("ASoC TLV320ADC3xxx codec driver"); 1462 MODULE_AUTHOR("shahina.s@mistralsolutions.com"); 1463 MODULE_LICENSE("GPL v2"); 1464