1 /* 2 * Copyright (c) 2006-2023, RT-Thread Development Team 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 * 6 * Change Logs: 7 * Date Author Notes 8 * 2018-12-05 zylx The first version for STM32F4xx 9 * 2019-4-25 misonyo port to IMXRT 10 */ 11 12 #ifndef __DRV_WM8960_H__ 13 #define __DRV_WM8960_H__ 14 15 #include <rtthread.h> 16 #include <rtdevice.h> 17 18 #include "fsl_common.h" 19 /*! 20 * @addtogroup wm8960 21 * @{ 22 */ 23 24 /******************************************************************************* 25 * Definitions 26 ******************************************************************************/ 27 /*! @name Driver version */ 28 /*@{*/ 29 /*! @brief CLOCK driver version 2.1.0 */ 30 #define FSL_WM8960_DRIVER_VERSION (MAKE_VERSION(2, 1, 0)) 31 /*@}*/ 32 33 /*! @brief wm8960 handle size */ 34 #ifndef WM8960_HANDLE_SIZE 35 #define WM8960_HANDLE_SIZE (100U) 36 #endif 37 38 /*! @brief Define the register address of WM8960. */ 39 #define WM8960_LINVOL 0x0 40 #define WM8960_RINVOL 0x1 41 #define WM8960_LOUT1 0x2 42 #define WM8960_ROUT1 0x3 43 #define WM8960_CLOCK1 0x4 44 #define WM8960_DACCTL1 0x5 45 #define WM8960_DACCTL2 0x6 46 #define WM8960_IFACE1 0x7 47 #define WM8960_CLOCK2 0x8 48 #define WM8960_IFACE2 0x9 49 #define WM8960_LDAC 0xa 50 #define WM8960_RDAC 0xb 51 52 #define WM8960_RESET 0xf 53 #define WM8960_3D 0x10 54 #define WM8960_ALC1 0x11 55 #define WM8960_ALC2 0x12 56 #define WM8960_ALC3 0x13 57 #define WM8960_NOISEG 0x14 58 #define WM8960_LADC 0x15 59 #define WM8960_RADC 0x16 60 #define WM8960_ADDCTL1 0x17 61 #define WM8960_ADDCTL2 0x18 62 #define WM8960_POWER1 0x19 63 #define WM8960_POWER2 0x1a 64 #define WM8960_ADDCTL3 0x1b 65 #define WM8960_APOP1 0x1c 66 #define WM8960_APOP2 0x1d 67 68 #define WM8960_LINPATH 0x20 69 #define WM8960_RINPATH 0x21 70 #define WM8960_LOUTMIX 0x22 71 72 #define WM8960_ROUTMIX 0x25 73 #define WM8960_MONOMIX1 0x26 74 #define WM8960_MONOMIX2 0x27 75 #define WM8960_LOUT2 0x28 76 #define WM8960_ROUT2 0x29 77 #define WM8960_MONO 0x2a 78 #define WM8960_INBMIX1 0x2b 79 #define WM8960_INBMIX2 0x2c 80 #define WM8960_BYPASS1 0x2d 81 #define WM8960_BYPASS2 0x2e 82 #define WM8960_POWER3 0x2f 83 #define WM8960_ADDCTL4 0x30 84 #define WM8960_CLASSD1 0x31 85 86 #define WM8960_CLASSD3 0x33 87 #define WM8960_PLL1 0x34 88 #define WM8960_PLL2 0x35 89 #define WM8960_PLL3 0x36 90 #define WM8960_PLL4 0x37 91 92 /*! @brief Cache register number */ 93 #define WM8960_CACHEREGNUM 56 94 95 /*! @brief WM8960_IFACE1 FORMAT bits */ 96 #define WM8960_IFACE1_FORMAT_MASK 0x03 97 #define WM8960_IFACE1_FORMAT_SHIFT 0x00 98 #define WM8960_IFACE1_FORMAT_RJ 0x00 99 #define WM8960_IFACE1_FORMAT_LJ 0x01 100 #define WM8960_IFACE1_FORMAT_I2S 0x02 101 #define WM8960_IFACE1_FORMAT_DSP 0x03 102 #define WM8960_IFACE1_FORMAT(x) ((x << WM8960_IFACE1_FORMAT_SHIFT) & WM8960_IFACE1_FORMAT_MASK) 103 104 /*! @brief WM8960_IFACE1 WL bits */ 105 #define WM8960_IFACE1_WL_MASK 0x0C 106 #define WM8960_IFACE1_WL_SHIFT 0x02 107 #define WM8960_IFACE1_WL_16BITS 0x00 108 #define WM8960_IFACE1_WL_20BITS 0x01 109 #define WM8960_IFACE1_WL_24BITS 0x02 110 #define WM8960_IFACE1_WL_32BITS 0x03 111 #define WM8960_IFACE1_WL(x) ((x << WM8960_IFACE1_WL_SHIFT) & WM8960_IFACE1_WL_MASK) 112 113 /*! @brief WM8960_IFACE1 LRP bit */ 114 #define WM8960_IFACE1_LRP_MASK 0x10 115 #define WM8960_IFACE1_LRP_SHIFT 0x04 116 #define WM8960_IFACE1_LRCLK_NORMAL_POL 0x00 117 #define WM8960_IFACE1_LRCLK_INVERT_POL 0x01 118 #define WM8960_IFACE1_DSP_MODEA 0x00 119 #define WM8960_IFACE1_DSP_MODEB 0x01 120 #define WM8960_IFACE1_LRP(x) ((x << WM8960_IFACE1_LRP_SHIFT) & WM8960_IFACE1_LRP_MASK) 121 122 /*! @brief WM8960_IFACE1 DLRSWAP bit */ 123 #define WM8960_IFACE1_DLRSWAP_MASK 0x20 124 #define WM8960_IFACE1_DLRSWAP_SHIFT 0x05 125 #define WM8960_IFACE1_DACCH_NORMAL 0x00 126 #define WM8960_IFACE1_DACCH_SWAP 0x01 127 #define WM8960_IFACE1_DLRSWAP(x) ((x << WM8960_IFACE1_DLRSWAP_SHIFT) & WM8960_IFACE1_DLRSWAP_MASK) 128 129 /*! @brief WM8960_IFACE1 MS bit */ 130 #define WM8960_IFACE1_MS_MASK 0x40 131 #define WM8960_IFACE1_MS_SHIFT 0x06 132 #define WM8960_IFACE1_SLAVE 0x00 133 #define WM8960_IFACE1_MASTER 0x01 134 #define WM8960_IFACE1_MS(x) ((x << WM8960_IFACE1_MS_SHIFT) & WM8960_IFACE1_MS_MASK) 135 136 /*! @brief WM8960_IFACE1 BCLKINV bit */ 137 #define WM8960_IFACE1_BCLKINV_MASK 0x80 138 #define WM8960_IFACE1_BCLKINV_SHIFT 0x07 139 #define WM8960_IFACE1_BCLK_NONINVERT 0x00 140 #define WM8960_IFACE1_BCLK_INVERT 0x01 141 #define WM8960_IFACE1_BCLKINV(x) ((x << WM8960_IFACE1_BCLKINV_SHIFT) & WM8960_IFACE1_BCLKINV_MASK) 142 143 /*! @brief WM8960_IFACE1 ALRSWAP bit */ 144 #define WM8960_IFACE1_ALRSWAP_MASK 0x100 145 #define WM8960_IFACE1_ALRSWAP_SHIFT 0x08 146 #define WM8960_IFACE1_ADCCH_NORMAL 0x00 147 #define WM8960_IFACE1_ADCCH_SWAP 0x01 148 #define WM8960_IFACE1_ALRSWAP(x) ((x << WM8960_IFACE1_ALRSWAP_SHIFT) & WM8960_IFACE1_ALRSWAP_MASK) 149 150 /*! @brief WM8960_POWER1 */ 151 #define WM8960_POWER1_VREF_MASK 0x40 152 #define WM8960_POWER1_VREF_SHIFT 0x06 153 154 #define WM8960_POWER1_AINL_MASK 0x20 155 #define WM8960_POWER1_AINL_SHIFT 0x05 156 157 #define WM8960_POWER1_AINR_MASK 0x10 158 #define WM8960_POWER1_AINR_SHIFT 0x04 159 160 #define WM8960_POWER1_ADCL_MASK 0x08 161 #define WM8960_POWER1_ADCL_SHIFT 0x03 162 163 #define WM8960_POWER1_ADCR_MASK 0x0 164 #define WM8960_POWER1_ADCR_SHIFT 0x02 165 166 #define WM8960_POWER1_MICB_MASK 0x02 167 #define WM8960_POWER1_MICB_SHIFT 0x01 168 169 #define WM8960_POWER1_DIGENB_MASK 0x01 170 #define WM8960_POWER1_DIGENB_SHIFT 0x00 171 172 /*! @brief WM8960_POWER2 */ 173 #define WM8960_POWER2_DACL_MASK 0x100 174 #define WM8960_POWER2_DACL_SHIFT 0x08 175 176 #define WM8960_POWER2_DACR_MASK 0x80 177 #define WM8960_POWER2_DACR_SHIFT 0x07 178 179 #define WM8960_POWER2_LOUT1_MASK 0x40 180 #define WM8960_POWER2_LOUT1_SHIFT 0x06 181 182 #define WM8960_POWER2_ROUT1_MASK 0x20 183 #define WM8960_POWER2_ROUT1_SHIFT 0x05 184 185 #define WM8960_POWER2_SPKL_MASK 0x10 186 #define WM8960_POWER2_SPKL_SHIFT 0x04 187 188 #define WM8960_POWER2_SPKR_MASK 0x08 189 #define WM8960_POWER2_SPKR_SHIFT 0x03 190 191 #define WM8960_POWER3_LMIC_MASK 0x20 192 #define WM8960_POWER3_LMIC_SHIFT 0x05 193 #define WM8960_POWER3_RMIC_MASK 0x10 194 #define WM8960_POWER3_RMIC_SHIFT 0x04 195 #define WM8960_POWER3_LOMIX_MASK 0x08 196 #define WM8960_POWER3_LOMIX_SHIFT 0x03 197 #define WM8960_POWER3_ROMIX_MASK 0x04 198 #define WM8960_POWER3_ROMIX_SHIFT 0x02 199 /*! @brief WM8960 I2C address. */ 200 #define WM8960_I2C_ADDR 0x1A 201 /*! @brief WM8960 I2C baudrate */ 202 #define WM8960_I2C_BAUDRATE (100000U) 203 204 /*! @brief Modules in WM8960 board. */ 205 typedef enum _wm8960_module 206 { 207 kWM8960_ModuleADC = 0, /*!< ADC module in WM8960 */ 208 kWM8960_ModuleDAC = 1, /*!< DAC module in WM8960 */ 209 kWM8960_ModuleVREF = 2, /*!< VREF module */ 210 kWM8960_ModuleHP = 3, /*!< Headphone */ 211 kWM8960_ModuleMICB = 4, /*!< Mic bias */ 212 kWM8960_ModuleMIC = 5, /*!< Input Mic */ 213 kWM8960_ModuleLineIn = 6, /*!< Analog in PGA */ 214 kWM8960_ModuleLineOut = 7, /*!< Line out module */ 215 kWM8960_ModuleSpeaker = 8, /*!< Speaker module */ 216 kWM8960_ModuleOMIX = 9, /*!< Output mixer */ 217 } wm8960_module_t; 218 219 /*! @brief wm8960 play channel */ 220 enum _wm8960_play_channel 221 { 222 kWM8960_HeadphoneLeft = 1, /*!< wm8960 headphone left channel */ 223 kWM8960_HeadphoneRight = 2, /*!< wm8960 headphone right channel */ 224 kWM8960_SpeakerLeft = 4, /*!< wm8960 speaker left channel */ 225 kWM8960_SpeakerRight = 8, /*!< wm8960 speaker right channel */ 226 }; 227 228 /*! @brief wm8960 play source */ 229 typedef enum _wm8960_play_source 230 { 231 kWM8960_PlaySourcePGA = 1, /*!< wm8960 play source PGA */ 232 kWM8960_PlaySourceInput = 2, /*!< wm8960 play source Input */ 233 kWM8960_PlaySourceDAC = 4, /*!< wm8960 play source DAC */ 234 } wm8960_play_source_t; 235 236 /*! 237 * @brief WM8960 data route. 238 * Only provide some typical data route, not all route listed. 239 * Note: Users cannot combine any routes, once a new route is set, the previous one would be replaced. 240 */ 241 typedef enum _wm8960_route 242 { 243 kWM8960_RouteBypass = 0, /*!< LINEIN->Headphone. */ 244 kWM8960_RoutePlayback = 1, /*!< I2SIN->DAC->Headphone. */ 245 kWM8960_RoutePlaybackandRecord = 2, /*!< I2SIN->DAC->Headphone, LINEIN->ADC->I2SOUT. */ 246 kWM8960_RouteRecord = 5 /*!< LINEIN->ADC->I2SOUT. */ 247 } wm8960_route_t; 248 249 /*! 250 * @brief The audio data transfer protocol choice. 251 * WM8960 only supports I2S format and PCM format. 252 */ 253 typedef enum _wm8960_protocol 254 { 255 kWM8960_BusI2S = 2, /*!< I2S type */ 256 kWM8960_BusLeftJustified = 1, /*!< Left justified mode */ 257 kWM8960_BusRightJustified = 0, /*!< Right justified mode */ 258 kWM8960_BusPCMA = 3, /*!< PCM A mode */ 259 kWM8960_BusPCMB = 3 | (1 << 4) /*!< PCM B mode */ 260 } wm8960_protocol_t; 261 262 /*! @brief wm8960 input source */ 263 typedef enum _wm8960_input 264 { 265 kWM8960_InputClosed = 0, /*!< Input device is closed */ 266 kWM8960_InputSingleEndedMic = 1, /*!< Input as single ended mic, only use L/RINPUT1 */ 267 kWM8960_InputDifferentialMicInput2 = 2, /*!< Input as differential mic, use L/RINPUT1 and L/RINPUT2 */ 268 kWM8960_InputDifferentialMicInput3 = 3, /*!< Input as differential mic, use L/RINPUT1 and L/RINPUT3*/ 269 kWM8960_InputLineINPUT2 = 4, /*!< Input as line input, only use L/RINPUT2 */ 270 kWM8960_InputLineINPUT3 = 5 /*!< Input as line input, only use L/RINPUT3 */ 271 } wm8960_input_t; 272 273 /*! @brief audio sample rate definition */ 274 enum _wm8960_sample_rate 275 { 276 kWM8960_AudioSampleRate8KHz = 8000U, /*!< Sample rate 8000 Hz */ 277 kWM8960_AudioSampleRate11025Hz = 11025U, /*!< Sample rate 11025 Hz */ 278 kWM8960_AudioSampleRate12KHz = 12000U, /*!< Sample rate 12000 Hz */ 279 kWM8960_AudioSampleRate16KHz = 16000U, /*!< Sample rate 16000 Hz */ 280 kWM8960_AudioSampleRate22050Hz = 22050U, /*!< Sample rate 22050 Hz */ 281 kWM8960_AudioSampleRate24KHz = 24000U, /*!< Sample rate 24000 Hz */ 282 kWM8960_AudioSampleRate32KHz = 32000U, /*!< Sample rate 32000 Hz */ 283 kWM8960_AudioSampleRate44100Hz = 44100U, /*!< Sample rate 44100 Hz */ 284 kWM8960_AudioSampleRate48KHz = 48000U, /*!< Sample rate 48000 Hz */ 285 kWM8960_AudioSampleRate96KHz = 96000U, /*!< Sample rate 96000 Hz */ 286 kWM8960_AudioSampleRate192KHz = 192000U, /*!< Sample rate 192000 Hz */ 287 kWM8960_AudioSampleRate384KHz = 384000U, /*!< Sample rate 384000 Hz */ 288 }; 289 290 /*! @brief audio bit width */ 291 enum _wm8960_audio_bit_width 292 { 293 kWM8960_AudioBitWidth16bit = 16U, /*!< audio bit width 16 */ 294 kWM8960_AudioBitWidth20bit = 20U, /*!< audio bit width 20 */ 295 kWM8960_AudioBitWidth24bit = 24U, /*!< audio bit width 24 */ 296 kWM8960_AudioBitWidth32bit = 32U, /*!< audio bit width 32 */ 297 }; 298 299 /*! @brief wm8960 audio format */ 300 typedef struct _wm8960_audio_format 301 { 302 uint32_t mclk_HZ; /*!< master clock frequency */ 303 uint32_t sampleRate; /*!< sample rate */ 304 uint32_t bitWidth; /*!< bit width */ 305 } wm8960_audio_format_t; 306 307 /*! @brief Initialize structure of WM8960 */ 308 typedef struct wm8960_config 309 { 310 wm8960_route_t route; /*!< Audio data route.*/ 311 wm8960_protocol_t bus; /*!< Audio transfer protocol */ 312 wm8960_audio_format_t format; /*!< Audio format */ 313 rt_bool_t master_slave; /*!< Master or slave. */ 314 rt_bool_t enableSpeaker; /*!< True means enable class D speaker as output, false means no */ 315 wm8960_input_t leftInputSource; /*!< Left input source for WM8960 */ 316 wm8960_input_t rightInputSource; /*!< Right input source for wm8960 */ 317 wm8960_play_source_t playSource; /*!< play source */ 318 uint8_t slaveAddress; /*!< wm8960 device address */ 319 //codec_i2c_config_t i2cConfig; /*!< i2c configuration */ 320 } wm8960_config_t; 321 322 /*! @brief wm8960 codec handler 323 * Applicationi should allocate a buffer with WM8960_HANDLE_SIZE for handle definition, such as 324 * uint8_t wm8960HandleBuffer[WM8960_HANDLE_SIZE]; 325 * wm8904_handle_t *wm8904Handle = wm8960HandleBuffer; 326 */ 327 typedef struct _wm8960_handle 328 { 329 const wm8960_config_t *config; /*!< wm8904 config pointer */ 330 void *i2cHandle; /*!< i2c handle */ 331 } wm8960_handle_t; 332 /******************************************************************************* 333 * API 334 ******************************************************************************/ 335 #if defined(__cplusplus) 336 extern "C" { 337 #endif 338 339 /*! 340 * @brief WM8960 initialize function. 341 * 342 * The second parameter is NULL to WM8960 in this version. If users want 343 * to change the settings, they have to use wm8960_write_reg() or wm8960_modify_reg() 344 * to set the register value of WM8960. 345 * Note: If the codec_config is NULL, it would initialize WM8960 using default settings. 346 * The default setting: 347 * codec_config->route = kWM8960_RoutePlaybackandRecord 348 * codec_config->bus = kWM8960_BusI2S 349 * codec_config->master = slave 350 * 351 * @param handle WM8960 handle structure. 352 * @param wm8960Config WM8960 configuration structure. 353 */ 354 void WM8960_init(struct rt_i2c_bus_device *dev, wm8960_config_t *wm8960Config); 355 356 /*! 357 * @brief Deinit the WM8960 codec. 358 * 359 * This function close all modules in WM8960 to save power. 360 * 361 * @param handle WM8960 handle structure pointer. 362 */ 363 void WM8960_Deinit(struct rt_i2c_bus_device *dev); 364 365 /*! 366 * @brief Set audio data route in WM8960. 367 * 368 * This function would set the data route according to route. The route cannot be combined, 369 * as all route would enable different modules. 370 * Note: If a new route is set, the previous route would not work. 371 * 372 * @param handle WM8960 handle structure. 373 * @param route Audio data route in WM8960. 374 */ 375 void WM8960_SetDataRoute(struct rt_i2c_bus_device *dev, wm8960_route_t route); 376 377 /*! 378 * @brief Set left audio input source in WM8960. 379 * 380 * @param handle WM8960 handle structure. 381 * @param input Audio input source. 382 */ 383 void WM8960_SetLeftInput(struct rt_i2c_bus_device *dev, wm8960_input_t input); 384 385 /*! 386 * @brief Set right audio input source in WM8960. 387 * 388 * @param handle WM8960 handle structure. 389 * @param input Audio input source. 390 */ 391 void WM8960_SetRightInput(struct rt_i2c_bus_device *dev, wm8960_input_t input); 392 393 /*! 394 * @brief Set the audio transfer protocol. 395 * 396 * WM8960 only supports I2S, left justified, right justified, PCM A, PCM B format. 397 * 398 * @param handle WM8960 handle structure. 399 * @param bus Audio data transfer protocol. 400 */ 401 void WM8960_SetProtocol(struct rt_i2c_bus_device *dev, wm8960_protocol_t protocol); 402 403 /*! 404 * @brief Set WM8960 as master or slave. 405 * 406 * @param handle WM8960 handle structure. 407 * @param master 1 represent master, 0 represent slave. 408 */ 409 void WM8960_SetMasterSlave(struct rt_i2c_bus_device *dev, rt_bool_t master); 410 411 /*! 412 * @brief Set the volume of different modules in WM8960. 413 * 414 * This function would set the volume of WM8960 modules. Uses need to appoint the module. 415 * The function assume that left channel and right channel has the same volume. 416 * 417 * @param handle WM8960 handle structure. 418 * @param module Module to set volume, it can be ADC, DAC, Headphone and so on. 419 * @param volume Volume value need to be set. 420 */ 421 void WM8960_SetVolume(struct rt_i2c_bus_device *dev, wm8960_module_t module, rt_uint32_t volume); 422 423 /*! 424 * @brief Get the volume of different modules in WM8960. 425 * 426 * This function gets the volume of WM8960 modules. Uses need to appoint the module. 427 * The function assume that left channel and right channel has the same volume. 428 * 429 * @param handle WM8960 handle structure. 430 * @param module Module to set volume, it can be ADC, DAC, Headphone and so on. 431 * @return Volume value of the module. 432 */ 433 rt_uint32_t WM8960_GetVolume(struct rt_i2c_bus_device *dev, wm8960_module_t module); 434 435 /*! 436 * @brief Mute modules in WM8960. 437 * 438 * @param handle WM8960 handle structure. 439 * @param module Modules need to be mute. 440 * @param isEnabled Mute or unmute, 1 represent mute. 441 */ 442 void WM8960_SetMute(struct rt_i2c_bus_device *dev, wm8960_module_t module, rt_bool_t isEnabled); 443 444 /*! 445 * @brief Enable/disable expected devices. 446 * 447 * @param handle WM8960 handle structure. 448 * @param module Module expected to enable. 449 * @param isEnabled Enable or disable moudles. 450 */ 451 void WM8960_SetModule(struct rt_i2c_bus_device *dev, wm8960_module_t module, rt_bool_t isEnabled); 452 453 /*! 454 * @brief SET the WM8960 play source. 455 * 456 * @param handle WM8960 handle structure. 457 * @param playSource play source , can be a value combine of kWM8960_ModuleHeadphoneSourcePGA, 458 * kWM8960_ModuleHeadphoneSourceDAC, kWM8960_ModulePlaySourceInput, kWM8960_ModulePlayMonoRight, 459 * kWM8960_ModulePlayMonoLeft. 460 * 461 * @return kStatus_WM8904_Success if successful, different code otherwise.. 462 */ 463 void WM8960_SetPlay(struct rt_i2c_bus_device *dev, uint32_t playSource); 464 465 /*! 466 * @brief Configure the data format of audio data. 467 * 468 * This function would configure the registers about the sample rate, bit depths. 469 * 470 * @param handle WM8960 handle structure pointer. 471 * @param sysclk system clock of the codec which can be generated by MCLK or PLL output. 472 * @param sample_rate Sample rate of audio file running in WM8960. WM8960 now 473 * supports 8k, 11.025k, 12k, 16k, 22.05k, 24k, 32k, 44.1k, 48k and 96k sample rate. 474 * @param bits Bit depth of audio file (WM8960 only supports 16bit, 20bit, 24bit 475 * and 32 bit in HW). 476 */ 477 void WM8960_ConfigDataFormat(struct rt_i2c_bus_device *dev, uint32_t sysclk, rt_uint32_t sample_rate, rt_uint32_t bits); 478 479 /*! 480 * @brief Enable/disable jack detect feature. 481 * 482 * @param handle WM8960 handle structure. 483 * @param isEnabled Enable or disable moudles. 484 */ 485 void WM8960_SetJackDetect(struct rt_i2c_bus_device *dev, rt_bool_t isEnabled); 486 487 /*! 488 * @brief Write register to WM8960 using I2C. 489 * 490 * @param handle WM8960 handle structure. 491 * @param reg The register address in WM8960. 492 * @param val Value needs to write into the register. 493 */ 494 void wm8960_write_reg(struct rt_i2c_bus_device *dev, rt_uint8_t reg, rt_uint16_t val); 495 496 /*! 497 * @brief Read register from WM8960 using I2C. 498 * @param handle WM8960 handle structure. 499 * @param reg The register address in WM8960. 500 * @param val Value written to. 501 */ 502 void wm8960_read_reg(struct rt_i2c_bus_device *dev, rt_uint8_t reg, rt_uint16_t *val); 503 504 /*! 505 * @brief Modify some bits in the register using I2C. 506 * @param handle WM8960 handle structure. 507 * @param reg The register address in WM8960. 508 * @param mask The mask code for the bits want to write. The bit you want to write should be 0. 509 * @param val Value needs to write into the register. 510 */ 511 void wm8960_modify_reg(struct rt_i2c_bus_device *dev, rt_uint8_t reg, rt_uint16_t mask, rt_uint16_t val); 512 513 #if defined(__cplusplus) 514 } 515 #endif 516 517 /*! @} */ 518 519 #endif /* _FSL_WM8960_H_ */ 520 521 /******************************************************************************* 522 * API 523 ******************************************************************************/ 524