1093 lines
32 KiB
C
1093 lines
32 KiB
C
|
/*
|
||
|
* Copyright (c) 2016, Freescale Semiconductor, Inc.
|
||
|
* Copyright 2016-2019 NXP
|
||
|
* All rights reserved.
|
||
|
*
|
||
|
* SPDX-License-Identifier: BSD-3-Clause
|
||
|
*/
|
||
|
|
||
|
#include "fsl_wm8904.h"
|
||
|
#if WM8904_DEBUG_REGISTER
|
||
|
#include "fsl_debug_console.h"
|
||
|
#endif
|
||
|
/*******************************************************************************
|
||
|
* Definitions
|
||
|
******************************************************************************/
|
||
|
/*! @brief wm8904 volume mapping */
|
||
|
#define WM8904_MAP_DAC_ADC_VOLUME(volume) (volume * (255 / 100U))
|
||
|
#define WM8904_MAP_PGA_VOLUME(volume) (volume > 0x1FU ? 0x1FU : volume)
|
||
|
#define WM8904_MAP_HEADPHONE_LINEOUT_VOLUME(volume) (volume > 0x3FU ? 0x3FU : volume)
|
||
|
#define WM8904_SWAP_UINT16_BYTE_SEQUENCE(x) (__REV16(x))
|
||
|
/*******************************************************************************
|
||
|
* Prototypes
|
||
|
******************************************************************************/
|
||
|
/*!
|
||
|
* @brief WM8904 update format.
|
||
|
*
|
||
|
* @param handle WM8904 handle structure.
|
||
|
* @param format format configurations.
|
||
|
* @return kStatus_Success, else failed.
|
||
|
*/
|
||
|
static status_t WM8904_UpdateFormat(wm8904_handle_t *handle, wm8904_audio_format_t *format);
|
||
|
|
||
|
/*!
|
||
|
* @brief WM8904 wait on write sequencer.
|
||
|
*
|
||
|
* @param handle WM8904 handle structure.
|
||
|
* @return kStatus_Success, else failed.
|
||
|
*/
|
||
|
static status_t WM8904_WaitOnWriteSequencer(wm8904_handle_t *handle);
|
||
|
/*******************************************************************************
|
||
|
* Variables
|
||
|
******************************************************************************/
|
||
|
#if WM8904_DEBUG_REGISTER
|
||
|
/*! @brief register definition */
|
||
|
static const uint8_t allRegisters[] = {
|
||
|
0x00, 0x04, 0x05, 0x06, 0x07, 0x0A, 0x0C, 0x0E, 0x0F, 0x12, 0x14, 0x15, 0x16, 0x18, 0x19, 0x1A, 0x1B,
|
||
|
0x1E, 0x1F, 0x20, 0x21, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x39,
|
||
|
0x3A, 0x3B, 0x3C, 0x3D, 0x43, 0x44, 0x45, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x5A, 0x5E, 0x62,
|
||
|
0x68, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7E, 0x7F,
|
||
|
0x80, 0x81, 0x82, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92, 0x93,
|
||
|
0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0xC6, 0xF7, 0xF8};
|
||
|
#endif
|
||
|
/*******************************************************************************
|
||
|
* Code
|
||
|
******************************************************************************/
|
||
|
static status_t WM8904_UpdateFormat(wm8904_handle_t *handle, wm8904_audio_format_t *format)
|
||
|
{
|
||
|
status_t result;
|
||
|
|
||
|
/* Disable SYSCLK */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_CLK_RATES_2, 0x00);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* Set Clock ratio and sample rate */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_CLK_RATES_1, (format->fsRatio << 10) | format->sampleRate);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* Set bit resolution */
|
||
|
result = WM8904_ModifyRegister(handle, WM8904_AUDIO_IF_1, 0x000C, format->bitWidth);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* Enable SYSCLK */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_CLK_RATES_2, 0x1007);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
return kStatus_WM8904_Success;
|
||
|
}
|
||
|
|
||
|
static status_t WM8904_WaitOnWriteSequencer(wm8904_handle_t *handle)
|
||
|
{
|
||
|
status_t result;
|
||
|
uint16_t value;
|
||
|
|
||
|
do
|
||
|
{
|
||
|
result = WM8904_ReadRegister(handle, WM8904_WRT_SEQUENCER_4, &value);
|
||
|
} while ((result == kStatus_WM8904_Success) && (value & 1));
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief WM8904 write register.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param reg register address.
|
||
|
* param value value to write.
|
||
|
* return kStatus_Success, else failed.
|
||
|
*/
|
||
|
status_t WM8904_WriteRegister(wm8904_handle_t *handle, uint8_t reg, uint16_t value)
|
||
|
{
|
||
|
assert(handle->config != NULL);
|
||
|
assert(handle->config->slaveAddress != 0U);
|
||
|
|
||
|
uint16_t writeValue = WM8904_SWAP_UINT16_BYTE_SEQUENCE(value);
|
||
|
|
||
|
return CODEC_I2C_Send(&(handle->i2cHandle), handle->config->slaveAddress, reg, 1U, (uint8_t *)&writeValue, 2U);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief WM8904 write register.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param reg register address.
|
||
|
* param value value to read.
|
||
|
* return kStatus_Success, else failed.
|
||
|
*/
|
||
|
status_t WM8904_ReadRegister(wm8904_handle_t *handle, uint8_t reg, uint16_t *value)
|
||
|
{
|
||
|
assert(handle->config != NULL);
|
||
|
assert(handle->config->slaveAddress != 0U);
|
||
|
|
||
|
uint8_t retval = 0;
|
||
|
uint16_t readValue = 0U;
|
||
|
|
||
|
retval = CODEC_I2C_Receive(&(handle->i2cHandle), handle->config->slaveAddress, reg, 1U, (uint8_t *)&readValue, 2U);
|
||
|
|
||
|
*value = WM8904_SWAP_UINT16_BYTE_SEQUENCE(readValue);
|
||
|
|
||
|
return retval;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief WM8904 modify register.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param reg register address.
|
||
|
* oaram mask register bits mask.
|
||
|
* param value value to write.
|
||
|
* return kStatus_Success, else failed.
|
||
|
*/
|
||
|
status_t WM8904_ModifyRegister(wm8904_handle_t *handle, uint8_t reg, uint16_t mask, uint16_t value)
|
||
|
{
|
||
|
status_t result;
|
||
|
uint16_t regValue;
|
||
|
|
||
|
result = WM8904_ReadRegister(handle, reg, ®Value);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
regValue &= (uint16_t)~mask;
|
||
|
regValue |= value;
|
||
|
|
||
|
return WM8904_WriteRegister(handle, reg, regValue);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Initializes WM8904.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param codec_config WM8904 configuration structure.
|
||
|
*/
|
||
|
status_t WM8904_Init(wm8904_handle_t *handle, wm8904_config_t *wm8904Config)
|
||
|
{
|
||
|
assert(handle != NULL);
|
||
|
assert(wm8904Config != NULL);
|
||
|
|
||
|
status_t result;
|
||
|
wm8904_config_t *config = wm8904Config;
|
||
|
handle->config = config;
|
||
|
|
||
|
/* i2c bus initialization */
|
||
|
result = CODEC_I2C_Init(&(handle->i2cHandle), wm8904Config->i2cConfig.codecI2CInstance, WM8904_I2C_BITRATE,
|
||
|
wm8904Config->i2cConfig.codecI2CSourceClock);
|
||
|
if (result != kStatus_HAL_I2cSuccess)
|
||
|
{
|
||
|
return kStatus_WM8904_Fail;
|
||
|
}
|
||
|
|
||
|
/* reset */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_RESET, 0x0000);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* MCLK_INV=0, SYSCLK_SRC=0, TOCLK_RATE=0, OPCLK_ENA=1,
|
||
|
* CLK_SYS_ENA=1, CLK_DSP_ENA=1, TOCLK_ENA=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_CLK_RATES_2, 0x000F);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* WSEQ_ENA=1, WSEQ_WRITE_INDEX=0_0000 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_WRT_SEQUENCER_0, 0x0100);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* WSEQ_ABORT=0, WSEQ_START=1, WSEQ_START_INDEX=00_0000 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_WRT_SEQUENCER_3, 0x0100);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
result = WM8904_WaitOnWriteSequencer(handle);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* TOCLK_RATE_DIV16=0, TOCLK_RATE_x4=1, SR_MODE=0, MCLK_DIV=1
|
||
|
* (Required for MMCs: SGY, KRT see erratum CE000546) */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_CLK_RATES_0, 0xA45F);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* INL_ENA=1, INR ENA=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_POWER_MGMT_0, 0x0003);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* HPL_PGA_ENA=1, HPR_PGA_ENA=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_POWER_MGMT_2, 0x0003);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* DACL_ENA=1, DACR_ENA=1, ADCL_ENA=1, ADCR_ENA=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_POWER_MGMT_6, 0x000F);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* ADC_OSR128=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_ANALOG_ADC_0, 0x0001);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* DACL_DATINV=0, DACR_DATINV=0, DAC_BOOST=00, LOOPBACK=0, AIFADCL_SRC=0,
|
||
|
* AIFADCR_SRC=1, AIFDACL_SRC=0, AIFDACR_SRC=1, ADC_COMP=0, ADC_COMPMODE=0,
|
||
|
* DAC_COMP=0, DAC_COMPMODE=0 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_AUDIO_IF_0, 0x0050);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* DAC_MONO=0, DAC_SB_FILT-0, DAC_MUTERATE=0, DAC_UNMUTE RAMP=0,
|
||
|
* DAC_OSR128=1, DAC_MUTE=0, DEEMPH=0 (none) */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_DAC_DIG_1, 0x0040);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* LINMUTE=0, LIN_VOL=0_0101 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_ANALOG_LEFT_IN_0, 0x0005);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* RINMUTE=0, RIN VOL=0_0101 LINEOUTL RMV SHORT-1, LINEOUTL ENA_OUTP=1,
|
||
|
* LINEOUTL_ENA_DLY=1, LINEOUTL_ENA=1, LINEOUTR_RMV_SHORT-1,
|
||
|
* LINEOUTR_ENA_OUTP=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_ANALOG_RIGHT_IN_0, 0x0005);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* HPOUTL_MUTE=0, HPOUT_VU=0, HPOUTLZC=0, HPOUTL_VOL=11_1001 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_ANALOG_OUT1_LEFT, 0x0039);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* HPOUTR_MUTE=0, HPOUT_VU=0, HPOUTRZC=0, HPOUTR_VOL=11_1001 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_ANALOG_OUT1_RIGHT, 0x0039);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* Enable DC servos for headphone out */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_DC_SERVO_0, 0x0003);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* HPL_RMV_SHORT=1, HPL_ENA_OUTP=1, HPL_ENA_DLY=1, HPL_ENA=1,
|
||
|
* HPR_RMV_SHORT=1, HPR_ENA_OUTP=1, HPR_ENA_DLY=1, HPR_ENA=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_ANALOG_HP_0, 0x00FF);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* CP_DYN_PWR=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_CLS_W_0, 0x0001);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* CP_ENA=1 */
|
||
|
result = WM8904_WriteRegister(handle, WM8904_CHRG_PUMP_0, 0x0001);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* set wm8904 as slave */
|
||
|
result = WM8904_SetMasterSlave(handle, config->master);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* set audio format */
|
||
|
result = WM8904_SetProtocol(handle, config->protocol);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
result = WM8904_CheckAudioFormat(handle, &config->format, config->mclk_HZ);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/* set record source and channel */
|
||
|
result = WM8904_SetRecord(handle, config->recordSource);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
result = WM8904_SetRecordChannel(handle, config->recordChannelLeft, config->recordChannelRight);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
/* set play source */
|
||
|
result = WM8904_SetPlay(handle, config->playSource);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Deinitializes the WM8904 codec.
|
||
|
*
|
||
|
* This function resets WM8904.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_Deinit(wm8904_handle_t *handle)
|
||
|
{
|
||
|
/* reset */
|
||
|
if (WM8904_WriteRegister(handle, WM8904_RESET, 0x0000) == kStatus_WM8904_Success)
|
||
|
{
|
||
|
return CODEC_I2C_Deinit(&(handle->i2cHandle));
|
||
|
}
|
||
|
|
||
|
return kStatus_WM8904_Fail;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Fills the configuration structure with default values.
|
||
|
*
|
||
|
* The default values are:
|
||
|
*
|
||
|
* master = false;
|
||
|
* protocol = kWM8904_ProtocolI2S;
|
||
|
* format.fsRatio = kWM8904_FsRatio64X;
|
||
|
* format.sampleRate = kWM8904_SampleRate48kHz;
|
||
|
* format.bitWidth = kWM8904_BitWidth16;
|
||
|
*
|
||
|
* param handle WM8904 handle structure to be filled with default values.
|
||
|
*/
|
||
|
void WM8904_GetDefaultConfig(wm8904_config_t *config)
|
||
|
{
|
||
|
memset(config, 0, sizeof(wm8904_config_t));
|
||
|
|
||
|
config->master = false;
|
||
|
config->protocol = kWM8904_ProtocolI2S;
|
||
|
config->format.sampleRate = kWM8904_SampleRate48kHz;
|
||
|
config->format.bitWidth = kWM8904_BitWidth16;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Sets WM8904 as master or slave.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param master true for master, false for slave.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetMasterSlave(wm8904_handle_t *handle, bool master)
|
||
|
{
|
||
|
if (master)
|
||
|
{
|
||
|
/* only slave currently supported */
|
||
|
return kStatus_WM8904_Fail;
|
||
|
}
|
||
|
|
||
|
return kStatus_WM8904_Success;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Sets the audio data transfer protocol.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param protocol Audio transfer protocol.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetProtocol(wm8904_handle_t *handle, wm8904_protocol_t protocol)
|
||
|
{
|
||
|
return WM8904_ModifyRegister(handle, WM8904_AUDIO_IF_1, (0x0003 | (1U << 4U)), (uint16_t)protocol);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Select LRC polarity.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param polarity LRC clock polarity.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SelectLRCPolarity(wm8904_handle_t *handle, uint32_t polarity)
|
||
|
{
|
||
|
return WM8904_ModifyRegister(handle, WM8904_AUDIO_IF_1, 0x0010, polarity);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Enable WM8904 DAC time slot.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param timeslot timeslot number.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_EnableDACTDMMode(wm8904_handle_t *handle, wm8904_timeslot_t timeSlot)
|
||
|
{
|
||
|
return WM8904_ModifyRegister(handle, WM8904_AUDIO_IF_1, 3U << 12U, 1U << 13U | timeSlot << 12U);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Enable WM8904 ADC time slot.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param timeslot timeslot number.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_EnableADCTDMMode(wm8904_handle_t *handle, wm8904_timeslot_t timeSlot)
|
||
|
{
|
||
|
return WM8904_ModifyRegister(handle, WM8904_AUDIO_IF_1, 3U << 10U, 1U << 11U | timeSlot << 10U);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief check and update the audio data format.
|
||
|
* This api is used check the fsRatio setting based on the mclk and sample rate, if fsRatio setting
|
||
|
* is not correct, it will correct it according to mclk and sample rate.
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param format audio data format
|
||
|
* param mclkFreq mclk frequency
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_CheckAudioFormat(wm8904_handle_t *handle, wm8904_audio_format_t *format, uint32_t mclkFreq)
|
||
|
{
|
||
|
assert(handle && format);
|
||
|
|
||
|
status_t result;
|
||
|
uint16_t mclkDiv = 0U;
|
||
|
uint32_t sampleRate = 0U;
|
||
|
uint32_t fsRatio = 0U;
|
||
|
|
||
|
result = WM8904_ReadRegister(handle, WM8904_CLK_RATES_0, &mclkDiv);
|
||
|
if (kStatus_WM8904_Success != result)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
switch (format->sampleRate)
|
||
|
{
|
||
|
case kWM8904_SampleRate8kHz:
|
||
|
sampleRate = 8000;
|
||
|
break;
|
||
|
case kWM8904_SampleRate12kHz:
|
||
|
sampleRate = 12000;
|
||
|
break;
|
||
|
case kWM8904_SampleRate16kHz:
|
||
|
sampleRate = 16000;
|
||
|
break;
|
||
|
case kWM8904_SampleRate24kHz:
|
||
|
sampleRate = 24000;
|
||
|
break;
|
||
|
case kWM8904_SampleRate32kHz:
|
||
|
sampleRate = 32000;
|
||
|
break;
|
||
|
case kWM8904_SampleRate48kHz:
|
||
|
sampleRate = 48000;
|
||
|
break;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
fsRatio = (mclkFreq >> (mclkDiv & 0x1U)) / sampleRate;
|
||
|
|
||
|
switch (fsRatio)
|
||
|
{
|
||
|
case 64:
|
||
|
format->fsRatio = kWM8904_FsRatio64X;
|
||
|
break;
|
||
|
case 128:
|
||
|
format->fsRatio = kWM8904_FsRatio128X;
|
||
|
break;
|
||
|
case 192:
|
||
|
format->fsRatio = kWM8904_FsRatio192X;
|
||
|
break;
|
||
|
case 256:
|
||
|
format->fsRatio = kWM8904_FsRatio256X;
|
||
|
break;
|
||
|
case 384:
|
||
|
format->fsRatio = kWM8904_FsRatio384X;
|
||
|
break;
|
||
|
case 512:
|
||
|
format->fsRatio = kWM8904_FsRatio512X;
|
||
|
break;
|
||
|
case 768:
|
||
|
format->fsRatio = kWM8904_FsRatio768X;
|
||
|
break;
|
||
|
case 1024:
|
||
|
format->fsRatio = kWM8904_FsRatio1024X;
|
||
|
break;
|
||
|
case 1408:
|
||
|
format->fsRatio = kWM8904_FsRatio1408X;
|
||
|
break;
|
||
|
case 1536:
|
||
|
format->fsRatio = kWM8904_FsRatio1536X;
|
||
|
break;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
return WM8904_UpdateFormat(handle, format);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Sets the audio data format.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param sysclk System clock frequency for codec, user should pay attention to this parater, sysclk is caculate as
|
||
|
* SYSCLK = MCLK / MCLKDIV, MCLKDIV is bit0 of WM8904_CLK_RATES_0.
|
||
|
* param sampleRate Sample rate frequency in Hz.
|
||
|
* param bitWidth Audio data bit width.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetAudioFormat(wm8904_handle_t *handle, uint32_t sysclk, uint32_t sampleRate, uint32_t bitWidth)
|
||
|
{
|
||
|
status_t result;
|
||
|
wm8904_audio_format_t format;
|
||
|
uint32_t ratio = 0;
|
||
|
|
||
|
switch (sampleRate)
|
||
|
{
|
||
|
case 8000:
|
||
|
format.sampleRate = kWM8904_SampleRate8kHz;
|
||
|
break;
|
||
|
case 11025:
|
||
|
case 12000:
|
||
|
format.sampleRate = kWM8904_SampleRate12kHz;
|
||
|
break;
|
||
|
case 16000:
|
||
|
format.sampleRate = kWM8904_SampleRate16kHz;
|
||
|
break;
|
||
|
case 22050:
|
||
|
case 24000:
|
||
|
format.sampleRate = kWM8904_SampleRate24kHz;
|
||
|
break;
|
||
|
case 32000:
|
||
|
format.sampleRate = kWM8904_SampleRate32kHz;
|
||
|
break;
|
||
|
case 44100:
|
||
|
case 48000:
|
||
|
format.sampleRate = kWM8904_SampleRate48kHz;
|
||
|
break;
|
||
|
default:
|
||
|
return kStatus_WM8904_Fail;
|
||
|
}
|
||
|
|
||
|
switch (bitWidth)
|
||
|
{
|
||
|
case 16:
|
||
|
format.bitWidth = kWM8904_BitWidth16;
|
||
|
break;
|
||
|
case 20:
|
||
|
format.bitWidth = kWM8904_BitWidth20;
|
||
|
break;
|
||
|
case 24:
|
||
|
format.bitWidth = kWM8904_BitWidth24;
|
||
|
break;
|
||
|
case 32:
|
||
|
format.bitWidth = kWM8904_BitWidth32;
|
||
|
break;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
ratio = sysclk / sampleRate;
|
||
|
switch (ratio)
|
||
|
{
|
||
|
case 64:
|
||
|
format.fsRatio = kWM8904_FsRatio64X;
|
||
|
break;
|
||
|
case 128:
|
||
|
format.fsRatio = kWM8904_FsRatio128X;
|
||
|
break;
|
||
|
case 192:
|
||
|
format.fsRatio = kWM8904_FsRatio192X;
|
||
|
break;
|
||
|
case 256:
|
||
|
format.fsRatio = kWM8904_FsRatio256X;
|
||
|
break;
|
||
|
case 384:
|
||
|
format.fsRatio = kWM8904_FsRatio384X;
|
||
|
break;
|
||
|
case 512:
|
||
|
format.fsRatio = kWM8904_FsRatio512X;
|
||
|
break;
|
||
|
case 768:
|
||
|
format.fsRatio = kWM8904_FsRatio768X;
|
||
|
break;
|
||
|
case 1024:
|
||
|
format.fsRatio = kWM8904_FsRatio1024X;
|
||
|
break;
|
||
|
case 1408:
|
||
|
format.fsRatio = kWM8904_FsRatio1408X;
|
||
|
break;
|
||
|
case 1536:
|
||
|
format.fsRatio = kWM8904_FsRatio1536X;
|
||
|
break;
|
||
|
default:
|
||
|
return kStatus_WM8904_Fail;
|
||
|
}
|
||
|
|
||
|
result = WM8904_UpdateFormat(handle, &format);
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Sets the headphone output volume.
|
||
|
*
|
||
|
* The parameter should be from 0 to 63.
|
||
|
* The resulting volume will be (parameter - 57 dB).
|
||
|
* 0 for -57 dB, 57 for 0 dB, 63 for +6 dB etc.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param volumeLeft Volume of the left channel.
|
||
|
* param volumeRight Volume of the right channel.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetVolume(wm8904_handle_t *handle, uint16_t volumeLeft, uint16_t volumeRight)
|
||
|
{
|
||
|
status_t result;
|
||
|
|
||
|
result = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_LEFT, 0x3F, volumeLeft);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
result = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_RIGHT, 0xBF, volumeRight | 0x0080);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
return kStatus_WM8904_Success;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Sets the headphone output mute.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param muteLeft true to mute left channel, false to unmute.
|
||
|
* param muteRight true to mute right channel, false to unmute.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetMute(wm8904_handle_t *handle, bool muteLeft, bool muteRight)
|
||
|
{
|
||
|
status_t result;
|
||
|
uint16_t left = muteLeft ? 0x0100 : 0x0000;
|
||
|
uint16_t right = muteRight ? 0x0100 : 0x0000;
|
||
|
|
||
|
result = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_LEFT, 0x0100, left);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
result = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_RIGHT, 0x0180, right | 0x0080);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
return kStatus_WM8904_Success;
|
||
|
}
|
||
|
|
||
|
#if WM8904_DEBUG_REGISTER
|
||
|
/*!
|
||
|
* brief Reads content of all WM8904 registers and prints it to debug console.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_PrintRegisters(wm8904_handle_t *handle)
|
||
|
{
|
||
|
status_t result;
|
||
|
uint16_t value;
|
||
|
uint32_t i;
|
||
|
|
||
|
for (i = 0; i < sizeof(allRegisters); i++)
|
||
|
{
|
||
|
result = WM8904_ReadRegister(handle, allRegisters[i], &value);
|
||
|
if (result != kStatus_WM8904_Success)
|
||
|
{
|
||
|
PRINTF("\r\n");
|
||
|
return result;
|
||
|
}
|
||
|
PRINTF("%s", ((i % 8) == 0) ? "\r\n" : "\t");
|
||
|
PRINTF("%02X:%04X", allRegisters[i], value);
|
||
|
}
|
||
|
|
||
|
PRINTF("\r\n");
|
||
|
return result;
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
/*!
|
||
|
* brief Sets the channel output volume.
|
||
|
*
|
||
|
* The parameter should be from 0 to 100.
|
||
|
* The resulting volume will be.
|
||
|
* 0 for mute, 100 for maximum volume value.
|
||
|
*
|
||
|
* param handle codec handle structure.
|
||
|
* param channel codec channel.
|
||
|
* param volume volume value.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetChannelVolume(wm8904_handle_t *handle, uint32_t channel, uint32_t volume)
|
||
|
{
|
||
|
status_t ret = kStatus_Fail;
|
||
|
volume = WM8904_MAP_HEADPHONE_LINEOUT_VOLUME(volume);
|
||
|
|
||
|
/* headphone left channel */
|
||
|
if (channel & kWM8904_HeadphoneLeft)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_LEFT, volume == 0U ? 0x100U : 0x3FU,
|
||
|
volume == 0U ? 0x100U : (volume));
|
||
|
}
|
||
|
/* headphone right channel */
|
||
|
if (channel & kWM8904_HeadphoneRight)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_RIGHT, volume == 0U ? 0x100U : 0xBFU,
|
||
|
volume == 0U ? 0x100U : (volume | 0x80U));
|
||
|
}
|
||
|
/* line out left channel */
|
||
|
if (channel & kWM8904_LineoutLeft)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT2_LEFT, volume == 0U ? 0x100U : 0x3FU,
|
||
|
volume == 0U ? 0x100U : (volume));
|
||
|
}
|
||
|
/* line out right channel */
|
||
|
if (channel & kWM8904_LineoutRight)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT2_RIGHT, volume == 0U ? 0x100U : 0xBFU,
|
||
|
volume == 0U ? 0x100U : (volume | 0x80U));
|
||
|
}
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief Sets the channel mute.
|
||
|
*
|
||
|
* param handle codec handle structure.
|
||
|
* param channel codec module name.
|
||
|
* param isMute true is mute, false unmute.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetChannelMute(wm8904_handle_t *handle, uint32_t channel, bool isMute)
|
||
|
{
|
||
|
status_t ret = kStatus_Fail;
|
||
|
uint16_t regValue = 0U, regMask = 0U;
|
||
|
|
||
|
regValue = isMute ? 0x180U : 0x80U;
|
||
|
regMask = 0x100U;
|
||
|
|
||
|
/* headphone left channel */
|
||
|
if (channel & kWM8904_HeadphoneLeft)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_LEFT, regMask, regValue);
|
||
|
}
|
||
|
|
||
|
/* headphone right channel */
|
||
|
if (channel & kWM8904_HeadphoneRight)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT1_RIGHT, regMask, regValue);
|
||
|
}
|
||
|
|
||
|
/* line out left channel */
|
||
|
if (channel & kWM8904_LineoutLeft)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT2_LEFT, regMask, regValue);
|
||
|
}
|
||
|
|
||
|
/* line out right channel */
|
||
|
if (channel & kWM8904_LineoutRight)
|
||
|
{
|
||
|
ret = WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT2_RIGHT, regMask, regValue);
|
||
|
}
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief SET the module output power.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param module wm8904 module.
|
||
|
* param isEnabled, true is power on, false is power down.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise..
|
||
|
*/
|
||
|
status_t WM8904_SetModulePower(wm8904_handle_t *handle, wm8904_module_t module, bool isEnabled)
|
||
|
{
|
||
|
uint8_t regAddr = 0, regBitMask = 0U, regValue = 0U;
|
||
|
|
||
|
switch (module)
|
||
|
{
|
||
|
case kWM8904_ModuleADC:
|
||
|
regAddr = WM8904_POWER_MGMT_6;
|
||
|
regBitMask = 3U;
|
||
|
regValue = isEnabled ? 3U : 0U;
|
||
|
break;
|
||
|
case kWM8904_ModuleDAC:
|
||
|
regAddr = WM8904_POWER_MGMT_6;
|
||
|
regBitMask = 0xCU;
|
||
|
regValue = isEnabled ? 0xCU : 0U;
|
||
|
|
||
|
break;
|
||
|
case kWM8904_ModulePGA:
|
||
|
regAddr = WM8904_POWER_MGMT_0;
|
||
|
regBitMask = 3U;
|
||
|
regValue = isEnabled ? 3U : 0U;
|
||
|
|
||
|
break;
|
||
|
case kWM8904_ModuleHeadphone:
|
||
|
regAddr = WM8904_POWER_MGMT_2;
|
||
|
regBitMask = 3U;
|
||
|
regValue = isEnabled ? 3U : 0U;
|
||
|
break;
|
||
|
case kWM8904_ModuleLineout:
|
||
|
regAddr = WM8904_POWER_MGMT_3;
|
||
|
regBitMask = 3U;
|
||
|
regValue = isEnabled ? 3U : 0U;
|
||
|
break;
|
||
|
default:
|
||
|
return kStatus_InvalidArgument;
|
||
|
}
|
||
|
|
||
|
return WM8904_ModifyRegister(handle, regAddr, regBitMask, regValue);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief SET the WM8904 record source.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param recordSource record source , can be a value of kWM8904_ModuleRecordSourceDifferentialLine,
|
||
|
* kWM8904_ModuleRecordSourceDifferentialMic, kWM8904_ModuleRecordSourceSingleEndMic,
|
||
|
* kWM8904_ModuleRecordSourceDigitalMic.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise.
|
||
|
*/
|
||
|
status_t WM8904_SetRecord(wm8904_handle_t *handle, uint32_t recordSource)
|
||
|
{
|
||
|
uint8_t regLeftAddr = WM8904_ANALOG_LEFT_IN_1, regRightAddr = WM8904_ANALOG_RIGHT_IN_1;
|
||
|
uint16_t regLeftValue = 0U, regRightValue = 0U, regBitMask;
|
||
|
status_t ret = kStatus_Success;
|
||
|
|
||
|
switch (recordSource)
|
||
|
{
|
||
|
case kWM8904_RecordSourceDifferentialLine:
|
||
|
regLeftValue = 1U;
|
||
|
regRightValue = 1U;
|
||
|
regBitMask = 0x3FU;
|
||
|
break;
|
||
|
case kWM8904_RecordSourceDifferentialMic:
|
||
|
regLeftValue = 2U;
|
||
|
regRightValue = 2U;
|
||
|
regBitMask = 0x3FU;
|
||
|
break;
|
||
|
case kWM8904_RecordSourceLineInput:
|
||
|
regLeftValue = 0U;
|
||
|
regRightValue = 0U;
|
||
|
regBitMask = 0x3FU;
|
||
|
break;
|
||
|
case kWM8904_RecordSourceDigitalMic:
|
||
|
regLeftValue = (1U << 12U);
|
||
|
regLeftAddr = WM8904_DAC_DIG_0;
|
||
|
regRightAddr = 0U;
|
||
|
regBitMask = 1U << 12U;
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
return kStatus_InvalidArgument;
|
||
|
}
|
||
|
|
||
|
ret = WM8904_ModifyRegister(handle, regLeftAddr, regBitMask, regLeftValue);
|
||
|
|
||
|
if ((ret == kStatus_Success) && (regRightAddr))
|
||
|
{
|
||
|
return WM8904_ModifyRegister(handle, regRightAddr, regBitMask, regRightValue);
|
||
|
}
|
||
|
|
||
|
return kStatus_Success;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief SET the WM8904 record source.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param leftRecordChannel channel number of left record channel when using differential source, channel number of
|
||
|
* single end left channel when using single end source, channel number of digital mic when using digital mic source.
|
||
|
* param rightRecordChannel channel number of right record channel when using differential source, channel number
|
||
|
* of single end right channel when using single end source.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise..
|
||
|
*/
|
||
|
status_t WM8904_SetRecordChannel(wm8904_handle_t *handle, uint32_t leftRecordChannel, uint32_t rightRecordChannel)
|
||
|
{
|
||
|
uint8_t regLeftAddr = WM8904_ANALOG_LEFT_IN_1, regRightAddr = WM8904_ANALOG_RIGHT_IN_1;
|
||
|
uint16_t regLeftValue = 0U, regRightValue = 0U, regBitMask;
|
||
|
status_t ret = kStatus_Success;
|
||
|
uint8_t leftPositiveChannel = 0U, leftNegativeChannel = 0U, rightPositiveChannel = 0U, rightNegativeChannel = 0U;
|
||
|
|
||
|
if (leftRecordChannel & kWM8904_RecordChannelDifferentialPositive1)
|
||
|
{
|
||
|
leftPositiveChannel = 0U;
|
||
|
}
|
||
|
else if (leftRecordChannel & kWM8904_RecordChannelDifferentialPositive2)
|
||
|
{
|
||
|
leftPositiveChannel = 1U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
leftPositiveChannel = 2U;
|
||
|
}
|
||
|
|
||
|
if (leftRecordChannel & kWM8904_RecordChannelDifferentialNegative1)
|
||
|
{
|
||
|
leftNegativeChannel = 0U;
|
||
|
}
|
||
|
else if (leftRecordChannel & kWM8904_RecordChannelDifferentialNegative2)
|
||
|
{
|
||
|
leftNegativeChannel = 1U;
|
||
|
}
|
||
|
else if (leftRecordChannel & kWM8904_RecordChannelDifferentialNegative3)
|
||
|
{
|
||
|
leftNegativeChannel = 2U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
leftNegativeChannel = leftPositiveChannel;
|
||
|
}
|
||
|
|
||
|
if (rightRecordChannel & kWM8904_RecordChannelDifferentialPositive1)
|
||
|
{
|
||
|
rightPositiveChannel = 0U;
|
||
|
}
|
||
|
else if (rightRecordChannel & kWM8904_RecordChannelDifferentialPositive2)
|
||
|
{
|
||
|
rightPositiveChannel = 1U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
rightPositiveChannel = 2U;
|
||
|
}
|
||
|
|
||
|
if (rightRecordChannel & kWM8904_RecordChannelDifferentialNegative1)
|
||
|
{
|
||
|
rightNegativeChannel = 0U;
|
||
|
}
|
||
|
else if (rightRecordChannel & kWM8904_RecordChannelDifferentialNegative2)
|
||
|
{
|
||
|
rightNegativeChannel = 1U;
|
||
|
}
|
||
|
else if (rightRecordChannel & kWM8904_RecordChannelDifferentialNegative3)
|
||
|
{
|
||
|
rightNegativeChannel = 2U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
rightNegativeChannel = rightPositiveChannel;
|
||
|
}
|
||
|
|
||
|
regLeftValue = ((leftNegativeChannel & 3U) << 4U) | ((leftPositiveChannel & 3U) << 2U);
|
||
|
regRightValue = ((rightNegativeChannel & 3U) << 4U) | ((rightPositiveChannel & 3U) << 2U);
|
||
|
regBitMask = 0x3CU;
|
||
|
|
||
|
ret = WM8904_ModifyRegister(handle, regLeftAddr, regBitMask, regLeftValue);
|
||
|
|
||
|
if ((ret == kStatus_Success) && (regRightAddr))
|
||
|
{
|
||
|
return WM8904_ModifyRegister(handle, regRightAddr, regBitMask, regRightValue);
|
||
|
}
|
||
|
|
||
|
return kStatus_Success;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* brief SET the WM8904 play source.
|
||
|
*
|
||
|
* param handle WM8904 handle structure.
|
||
|
* param playSource play source , can be a value of kWM8904_PlaySourcePGA/kWM8904_PlaySourceDAC.
|
||
|
*
|
||
|
* return kStatus_WM8904_Success if successful, different code otherwise..
|
||
|
*/
|
||
|
status_t WM8904_SetPlay(wm8904_handle_t *handle, uint32_t playSource)
|
||
|
{
|
||
|
uint16_t regValue = 0U, regBitMask = 0xFU;
|
||
|
|
||
|
/* source form PGA*/
|
||
|
if (playSource == kWM8904_PlaySourcePGA)
|
||
|
{
|
||
|
regValue |= (3U << 2U) | 3U;
|
||
|
}
|
||
|
/* source from DAC*/
|
||
|
if (playSource == kWM8904_PlaySourceDAC)
|
||
|
{
|
||
|
regValue &= ~((3U << 2U) | 3U);
|
||
|
}
|
||
|
|
||
|
return WM8904_ModifyRegister(handle, WM8904_ANALOG_OUT12_ZC, regBitMask, regValue);
|
||
|
}
|