#ifndef _STA_H
#define _STA_H

//I2C定義
#define GENERATE_STOP        0x54     /* 置位 STO, 復位 STA 、 SI          */
#define RELEASE_BUS_ACK      0x44     /* 復位 STO,STA,SI 并置位  AA (ack)  */
#define RELEASE_BUS_NOACK    0x40     /* 復位 STO,STA,SI 并置位 AA (noack) */
#define RELEASE_BUS_STA      0x64     /* 起動總線/重新起動總線, 置位 STA   */

//引腳定義：復位，數據請求，數據使能端
sbit RESET = P3^2;
sbit DATA_REQ = P3^3;
//sbit BIT_EN = P1^7;
sbit SDI = P3^0;
sbit SCKR = P3^1;

//聲道參數
#define STA_CHANNEL_RIGHT           0xF0
#define STA_CHANNEL_LEFT            0xF1
#define STA_CHANNEL_MIX             0xF2
#define STA_CHANNEL_STEREO          0xF3
                                           
//音色模式
#define STA_TIMBRE_NORMAL           0xE0    //普通
#define STA_TIMBRE_METAL            0xE1    //金屬
#define STA_TIMBRE_LOCAL            0xE2    //現場
#define STA_TIMBRE_BASS             0xE3    //重低音
#define STA_TIMBRE_SPEECH           0xE4    //語音

///////////////////////////////////////////////////////////////////////////////////
// STA013 I2C address
#define STA_I2C_DEV		       0x86
#define STA_IDENT	               0xAC

// STA013 register (sub)address
#define STA_REG_VERSION                0x00
#define STA_REG_IDENT                  0x01
#define STA_REG_PLLCTL_1               0x05
#define STA_REG_PLLCTL_2               0x06
#define STA_REG_PLLCTL_3               0x07
#define STA_REG_REQ_POL                0x0c
#define STA_REG_SCLK_POL               0x0d
#define STA_REG_ERROR_CODE             0x0f
#define STA_REG_SOFT_RESET             0x10
#define STA_REG_PLAY                   0x13
#define STA_REG_MUTE                   0x14
#define STA_REG_CMD_INTERRUPT          0x16
#define STA_REG_DATA_REQ_ENABLE        0x18
#define STA_REG_SYNCSTATUS             0x40
#define STA_REG_ANCCOUNT_L             0x41
#define STA_REG_ANCCOUNT_H             0x42
#define STA_REG_HEAD_H                 0x43
#define STA_REG_HEAD_M                 0x44
#define STA_REG_HEAD_L                 0x45
#define STA_REG_DLA                    0x46
#define STA_REG_DLB                    0x47
#define STA_REG_DRA                    0x48
#define STA_REG_DRB                    0x49
#define STA_REG_MFSDF_441              0x50
#define STA_REG_PLLFRAC_441_L          0x51
#define STA_REG_PLLFRAC_441_H          0x52
#define STA_REG_PCMDIVIDER             0x54
#define STA_REG_PCMCONF                0x55
#define STA_REG_PCMCROSS               0x56
#define STA_REG_ANC_DATA_1             0x59
#define STA_REG_ANC_DATA_2             0x5a
#define STA_REG_ANC_DATA_3             0x5b
#define STA_REG_ANC_DATA_4             0x5c
#define STA_REG_ANC_DATA_5             0x5d
#define STA_REG_MFSDF                  0x61
#define STA_REG_DAC_CLK_MODE           0x63
#define STA_REG_PLLFRAC_L              0x64
#define STA_REG_PLLFRAC_H              0x65
#define STA_REG_FRAME_CNT_L            0x67
#define STA_REG_FRAME_CNT_M            0x68
#define STA_REG_FRAME_CNT_H            0x69
#define STA_REG_AVERAGE_BITRATE        0x6a
#define STA_REG_SOFTVERSION            0x71
#define STA_REG_RUN                    0x72
#define STA_REG_TREBLE_FREQUENCY_LOW   0x77
#define STA_REG_TREBLE_FREQUENCY_HIGH  0x78
#define STA_REG_BASS_FREQUENCY_LOW     0x79
#define STA_REG_BASS_FREQUENCY_HIGH    0x7a
#define STA_REG_TREBLE_ENHANCE         0x7b
#define STA_REG_BASS_ENHANCE           0x7c
#define STA_REG_TONE_ATTEN             0x7d

#define MIN_VOLUME_ATTENUATION		0
#define MAX_VOLUME_ATTENUATION		96
#define MIN_TONE_ATTENUATION		0
#define MAX_TONE_ATTENUATION		96
#define MIN_BASS_FREQUENCY		100
#define MAX_BASS_FREQUENCY		500
#define MIN_BASS_ENHANCE		-12	// -18dB in 1.5 dB steps
#define MAX_BASS_ENHANCE		+12	// +18dB in 1.5 dB steps
#define MIN_TREBLE_FREQUENCY		1000
#define MAX_TREBLE_FREQUENCY		5000
#define MIN_TREBLE_ENHANCE		-12	// -18dB in 1.5 dB steps
#define MAX_TREBLE_ENHANCE		+12	// +18dB in 1.5 dB steps
#define SOFTMUTE_VOLUME_CHANGE		20

// volume is expected as 0-100 value
// Note:
#define MIN_VOLUME_ATTENUATION     0
#define MAX_VOLUME_ATTENUATION     96

//Functions
//硬復位
void STA_Reset(void);
//求最大值
signed char  MAX(signed char, signed char);
//求最小值
signed char  MIN(signed char, signed char);
//讀寄存器
unsigned char STA_ReadReg(unsigned char);
//寫寄存器
void STA_WriteReg(unsigned char, unsigned char);
//寫配置文件
void STA_DownloadUpdate(void);
//設置音調
void STA_SetTone(signed char, unsigned int, signed char, unsigned int);
//配置STA013并開始解壓
void STA_STArtDecoder();
//停止解壓
void STA_StopDecoder();
//暫停解壓
void STA_PauseDecoder();
//恢復解壓
void STA_ResumeDecoder();
//STA013初始化
unsigned char STA_Init();
//設置音量
void STA_SetVolume(unsigned char volume, signed char balance);
//設置音色
STA_SetTimbre(unsigned char uchVol,unsigned char uchTimbre);
//設置聲道
void STA_SetChannel(unsigned char uchChannel);
//設置MP3 Header相關寄存器
//void STA_SetHead(unsigned char,unsigned char,unsigned char)；
//發送MP3數據到STA013
void STA_SendToDecoder(unsigned char xdata *,unsigned int);

#endif //_STA_H