130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/*
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* CS43L22.c
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*
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* Created on: Apr 3, 2021
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* Author: Think
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*/
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#include "CS43L22.h"
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//CS43L22 I2C address
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static const uint8_t CS43L22_ADDR = 0x4A << 1;
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//CS43L22 register address array for easy register dump..
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static const uint8_t REG_ARRAY[CS43L22_RESGISTER_COUNT] = {0x01, 0x02, 0x04,
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0x05, 0x06, 0x07,
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0x08, 0x09, 0x0A,
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0x0C, 0x0D, 0x0E,
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0x0F, 0x14, 0x15,
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0x1A, 0x1B, 0x1C,
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0x1D, 0x1E, 0x1F,
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0x20, 0x21, 0x22,
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0x23, 0x24, 0x25,
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0x26, 0x27, 0x28,
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0x29, 0x2E, 0x2F,
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0x30, 0x31, 0x34};
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//CS43L22 36 register definition enum
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typedef enum
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{
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_ID = 0,
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_POWER_CTL_1,
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_POWER_CTL_2,
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_CLOCKING_CTL,
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_INTERFACE_CTL_1,
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_INTERFACE_CTL_2,
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_PASSTHROUGH_A_SELECT,
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_PASSTHROUGH_B_SELECT,
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_ANALOG_ZC_AND_SR_SETTING,
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_PASSTHROUGH_GANG_CONTROL,
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_PLAYBACK_CTL_1,
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_MISC_CTL,
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_PLAYBACK_CTL_2,
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_PASSTHROUGH_A_VOL,
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_PASSTHROUGH_B_VOL,
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_PCMA_VOL,
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_PCMB_VOL,
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_BEEP_FREQ_ON_TIME,
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_BEEP_VOL_OFF_TIME,
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_BEEP_TONE_CFG,
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_TONE_CTL,
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_MASTER_A_VOL,
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_MASTER_B_VOL,
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_HEADPHONE_A_VOLUME,
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_HEADPHONE_B_VOLUME,
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_SPEAKER_A_VOLUME,
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_SPEAKER_B_VOLUME,
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_CHANNEL_MIXER_AND_SWAP,
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_LIMIT_CTL_1_THRESHOLDS,
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_LIMIT_CTL_2_THRESHOLDS,
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_LIMITER_ATTACK_RATE,
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_OVERFLOW_AND_CLOCK_STATUS,
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_BATTERY_COMPENSATION,
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_VP_BATTERY_LEVEL,
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_SPEAKER_STATUS,
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_CHARGE_PUMP_FREQUENCY,
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} CS43L22_REGISTER_e;
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//Driver function definition
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bool CS43L22_Init(CS43L22 *device, I2C_HandleTypeDef *i2cHandler)
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{
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device->i2cHandler = i2cHandler;
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//We check that the reset pin is not low...
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HAL_GPIO_WritePin(GPIOD, GPIO_PIN_4, GPIO_PIN_SET);
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return true;
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}
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const uint8_t * const CS43L22_GetRegisterArray(void)
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{
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return REG_ARRAY;
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}
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bool CS43L22_Reset(CS43L22 *device)
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{
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HAL_GPIO_WritePin(GPIOD, GPIO_PIN_4, GPIO_PIN_RESET);
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HAL_Delay(50);
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HAL_GPIO_WritePin(GPIOD, GPIO_PIN_4, GPIO_PIN_SET);
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return true;
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}
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bool CS43L22_GetDeviceID(CS43L22 *device, uint8_t *chipID, uint8_t *chipREVID)
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{
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uint8_t data;
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if(!CS43L22_ReadRegister(device, ID, &data))
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return false;
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*chipID = data >> 3;
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*chipREVID = data & 0x07;
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return true;
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}
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bool CS43L22_ReadRegister(CS43L22 *device, uint8_t registerAddr, uint8_t *data)
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{
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HAL_StatusTypeDef status = HAL_I2C_Master_Transmit(device->i2cHandler, CS43L22_ADDR, ®isterAddr, 1, HAL_MAX_DELAY);
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if(status != HAL_OK)
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return false;
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return HAL_I2C_Master_Receive(device->i2cHandler, CS43L22_ADDR, data, 1, HAL_MAX_DELAY) == HAL_OK ? true : false;
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}
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bool CS43L22_WriteRegister(CS43L22 *device, uint8_t registerAddr, uint8_t data)
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{
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uint8_t regAndData[] = {registerAddr, data};
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return HAL_I2C_Master_Transmit(device->i2cHandler, CS43L22_ADDR, regAndData, 2, HAL_MAX_DELAY) == HAL_OK ? true : false;
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}
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bool CS43L22_RegisterDump(CS43L22 *device, uint8_t registers[36])
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{
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if(!registers)
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return false;
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for(uint8_t i = 0; i < sizeof(REG_ARRAY); i++)
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{
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if(!CS43L22_ReadRegister(device, REG_ARRAY[i], registers + i))
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return false;
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}
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return true;
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}
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