/*================================================================
  Copyright (c) 2020 Quectel Wireless Solution, Co., Ltd.  All Rights Reserved.
  Quectel Wireless Solution Proprietary and Confidential.
=================================================================*/

#include "ql_api_common.h"
#include "ql_audio.h"
#include "ql_codec_config.h"

/*===========================================================================
 * Variables
 ===========================================================================*/	
/*
	ES8311寄存器组,用户可以对照ES8311手册在此修改寄存器
	g_es8311InitRegList: 初始化codec时会将此结构体中的配置发送给codec
	g_es8311PlayRegList: 开始播放时会将此结构体中的配置发送给codec
	g_es8311RecRegList:  开始录音时会将此结构体中的配置发送给codec
	g_es8311CloseRegList:关闭codec时会将此结构体中的配置发送给codec

	播放时的调用流程: g_es8311InitRegList --> g_es8311PlayRegList --> g_es8311CloseRegList
	录音时的调用流程: g_es8311InitRegList --> g_es8311RecRegList --> g_es8311CloseRegList
*/
static ql_codec_reg_t g_es8311InitRegList[] = ES8311_INIT_CONFIG;
static ql_codec_reg_t g_es8311PlayRegList[] = ES8311_PLAY_CONFIG;
static ql_codec_reg_t g_es8311RecRegList[] = ES8311_RECORD_CONFIG;
static ql_codec_reg_t g_es8311CloseRegList[] = ES8311_CLOSE_CONFIG;

static ql_aud_adc_cfg  ql_adc_cfg = {QL_ADC_GAIN_LEVEL_9};
static ql_aud_dac_cfg  ql_dac_cfg = {0xbf};
/*===========================================================================
 * Functions
 ===========================================================================*/
extern ql_audio_errcode_e ql_es8311_read_reg(uint8 RegAddr, uint8 *p_value);
extern ql_audio_errcode_e ql_es8311_write_reg(uint8 RegAddr, uint8 RegData);
extern void quec_es8311_write_list(ql_codec_reg_t *regList, uint16_t len);

static void quec_es8311_config_dac(bool mute_dac)
{
	if(mute_dac)
	{
		ql_es8311_write_reg(ES8311_REG_DAC, 0); //音量为0,将dac寄存器关闭做到彻底静音
	}
	else
	{
		ql_aud_set_dac_gain(&ql_dac_cfg);//音量不为0,根据ql_aud_get_adc_gain接口设置的增益来配置dac寄存器
	}
}

/*
	用户如果在app侧自行控制codec,需要在此处定义一个函数名为quec_es8311_cfg_cb的空函数,避免内核找不到此函数
	导致编译报错,内核在开机时也会调用ql_aud_ext_codec_cfg将quec_es8311_cfg_cb函数注册为codec回调,用户在app
	侧重新注册其他回调函数后,内核之前注册的回调函数就会失效,用户即可在app侧仿照此处的逻辑去控制外置codec寄存器
*/
int quec_es8311_cfg_cb(ql_codec_cb_param_t *param)
{
	switch(param->stage)
	{
		case QL_EXT_CODEC_INIT:
			quec_es8311_write_list(g_es8311InitRegList, sizeof(g_es8311InitRegList) / sizeof(ql_codec_reg_t));
			break;

		case QL_EXT_CODEC_REC:
			quec_es8311_write_list(g_es8311RecRegList, sizeof(g_es8311RecRegList) / sizeof(ql_codec_reg_t));
			ql_aud_set_adc_gain(&ql_adc_cfg);//配置增益
			break;

		case QL_EXT_CODEC_PLAY:
			quec_es8311_write_list(g_es8311PlayRegList, sizeof(g_es8311PlayRegList) / sizeof(ql_codec_reg_t));
		case QL_EXT_CODEC_SET_VOLUME:
			quec_es8311_config_dac(AUDIOHAL_SPK_MUTE == ql_get_volume() ? true : false);
			break;

		case QL_EXT_CODEC_DEINIT:
			quec_es8311_write_list(g_es8311CloseRegList, sizeof(g_es8311CloseRegList) / sizeof(ql_codec_reg_t));
			break;
			
		default:
			break;		
	}

	return 0;
}

/*
	读取/配置ES8311的adc/dac增益
*/
ql_audio_errcode_e ql_aud_set_adc_gain(ql_aud_adc_cfg * adc_cfg)
{ 
    if((NULL == adc_cfg) || (adc_cfg->adc_gain < QL_ADC_GAIN_LEVEL_1) || (adc_cfg->adc_gain > QL_ADC_GAIN_LEVEL_12))
    {
    	return QL_AUDIO_INVALID_PARAM;
    }
    if(QL_ADC_GAIN_LEVEL_1 == adc_cfg->adc_gain)
    {
        if(ql_es8311_write_reg(ES8311_REG_ADC, 0x00))// reg 0x17 set volume mute
        {
        	return QL_AUDIO_CODEC_WR_FAIL;
        }
    }
    else
    {
        uint16_t REG14 = ((1 << 4) | adc_cfg->adc_gain);// 0-3 bit  adc pga gain value
        if(ql_es8311_write_reg(ES8311_REG_SYSTEM,REG14))// 8311 change adc pga gain reg 0x14 
        {
        	return QL_AUDIO_CODEC_WR_FAIL;
        }
        if(ql_es8311_write_reg(ES8311_REG_ADC, 0xBF))
        {
        	return QL_AUDIO_CODEC_WR_FAIL;
        }        
    }	
    ql_adc_cfg.adc_gain = adc_cfg->adc_gain;
    return QL_AUDIO_SUCCESS;
}

ql_audio_errcode_e ql_aud_get_adc_gain(ql_aud_adc_cfg * adc_cfg)
{
    if(NULL == adc_cfg)
    {
    	return QL_AUDIO_INVALID_PARAM;
    }	
    adc_cfg->adc_gain =  ql_adc_cfg.adc_gain;
    return QL_AUDIO_SUCCESS;
}

ql_audio_errcode_e ql_aud_set_dac_gain(ql_aud_dac_cfg * dac_cfg)
{
    if(ql_es8311_write_reg(0x32,dac_cfg->dac_gain))// 8311 change dac volume reg 0x32 
    {
        return QL_AUDIO_CODEC_WR_FAIL;
    }
    ql_dac_cfg.dac_gain = dac_cfg->dac_gain;
    return QL_AUDIO_SUCCESS;
}

ql_audio_errcode_e ql_aud_get_dac_gain(ql_aud_dac_cfg * dac_cfg)
{
    if(dac_cfg == NULL)
    {
    	return QL_AUDIO_INVALID_PARAM;
    }
    dac_cfg->dac_gain =  ql_dac_cfg.dac_gain;
    return QL_AUDIO_SUCCESS;
}