FM.rar_FM_rda5800

//1.0 , 04/16/2007, lilin, RDA #define FMRDA5800_GLOBALS #include "FMRDA5800.h" //Globals XWORD FMshadowReg[45]; XWORD FMseekChannels[FMCHANNELSMAX]; CWORD cwFMDefault[]={ 0x0000, 0x0000, 0xd881, //0x02 0x6300, 0x4400, //0x04 0x10f8, //0x05 0x0000, 0x00cd, 0x0096, 0x0020, 0x4163, 0x0806, 0x5800, 0x5800, 0x5800, 0x5800, 0x4817, 0x20a2, 0x0000, 0x000f, 0x06de, 0xecc0, 0x0200, 0x5383, 0x95a4, 0xe848, 0x0500, 0x00a4, 0x889b, 0x0d84, 0x4f04, 0x8832, 0x7f71, 0x0660, 0x4010, 0x6002, 0x1808, 0x6458, 0x787f, 0x0100, 0xc040, 0xc020, 0x0024, 0x0400, 0x0020, }; //================================================================ WORD FmChanToFreq(BYTE channel) large { WORD channelSpacing; WORD bottomOfBand; WORD frequency; if ((FMshadowReg[3] & 0x0002) == 0x0000) bottomOfBand = 875; else bottomOfBand = 760; if ((FMshadowReg[3] & 0x0001) == 0x0000) channelSpacing = 1; else if ((FMshadowReg[5] & 0x0001) == 0x0001) channelSpacing = 2; else channelSpacing = 1; frequency = (bottomOfBand + channelSpacing * channel); return (frequency); } //================================================================ WORD FmFreqToChan(WORD frequency) large { WORD channelSpacing; WORD bottomOfBand; WORD channel; if ((FMshadowReg[3] & 0x0002) == 0x0000) bottomOfBand = 875; else bottomOfBand = 760; if ((FMshadowReg[3] & 0x0001) == 0x0000) channelSpacing = 1; else if ((FMshadowReg[5] & 0x0001) == 0x0001) channelSpacing = 2; else channelSpacing = 1; channel = (frequency - bottomOfBand) / channelSpacing; return (channel); } //================================================================ BYTE FmWaitSTC1(void) large { #if(WAITGPIO2) WORD i; WAIT_FOR_GPIO2(); for(i=0x2000;i>0;i--); return(1); #else BYTE readData8[2]; do { if(i2c_rd(I2C_FM,I2C_FM_RD_DATA,2,readData8)==0) return(0); } while((readData8[0]&0x40)==0) return(1); #endif } //================================================================ BYTE FmWaitSTC0(void) large { WORD i; for(i=0x2000;i>0;i--) ; //lilin note, 07/03/27, this timer should longer than 50ms return(1); } //================================================================ BYTE FmInit(void) large { WORD i,j; XBYTE writeData8[86],xbTemp; I2C_FM_SEN_1(); I2C_FM_RST_0(); _nop_(); _nop_(); _nop_(); I2C_FM_RST_1(); _nop_(); _nop_(); _nop_(); for(xbTemp = 0; xbTemp < 45; xbTemp++) FMshadowReg[xbTemp] = cwFMDefault[xbTemp]; //lilin, for wait 0.5s after enable RCLK writeData8[0] = 0xd8; //0x02 0xd881 writeData8[1] = 0x81; //0x81; if (i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); #if(DCXO) //wait 500ms for RCLK stable, for(i=0x500;i>0;i--) for(j=0x500;j>0;j--) ; //wait 500ms for RCLK stable #endif for(xbTemp = 0; xbTemp < 43; xbTemp++) { writeData8[xbTemp*2] = (FMshadowReg[xbTemp+2] >> 8); writeData8[xbTemp*2+1] = (FMshadowReg[xbTemp+2]); } if (i2c_wr(I2C_FM,I2C_FM_WR_DATA,86,writeData8)) { } else return (0); //lilin, Tune caused by write REG 03H just now //wait STC==1 if(FmWaitSTC1()==0) return(0); //clear STC and lab_mode at the same time, from now only could access register 00H~0FH writeData8[0] = 0xd0; //0x02 0xd081 writeData8[1] = 0x81; //0x81; if (i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); //guarantee STC=0 if(FmWaitSTC0()==0) return(0); } //================================================================ BYTE FmTune(WORD channel) large { BYTE readData8[32]; BYTE writeData8[4]; writeData8[0] = 0xd0; //0x02 0xd081 writeData8[1] = 0x81; writeData8[2] = channel; //0x03 writeData8[3] = 0x00; if(i2c_wr(I2C_FM,I2C_FM_WR_DATA,4,writeData8)==0) return(0); //wait STC=1 if(FmWaitSTC1()==0) return(0); //read REG0A&0B #if(FMTEST) if (i2c_rd(I2C_FM,I2C_FM_RD_DATA,32,readData8)==0) return(0); #else if (i2c_rd(I2C_FM,I2C_FM_RD_DATA,4,readData8)==0) return(0); #endif FMshadowReg[10] = readData8[0]*0x100 + readData8[1]; FMshadowReg[11] = readData8[2]*0x100 + readData8[3]; #if(FMTEST) FMshadowReg[12] = readData8[4]*0x100 + readData8[5]; FMshadowReg[13] = readData8[6]*0x100 + readData8[7]; FMshadowReg[14] = readData8[8]*0x100 + readData8[9]; FMshadowReg[15] = readData8[10]*0x100 + readData8[11]; FMshadowReg[0] = readData8[12]*0x100 + readData8[13]; FMshadowReg[1] = readData8[14]*0x100 + readData8[15]; FMshadowReg[2] = readData8[16]*0x100 + readData8[17]; FMshadowReg[3] = readData8[18]*0x100 + readData8[19]; FMshadowReg[4] = readData8[20]*0x100 + readData8[21]; FMshadowReg[5] = readData8[22]*0x100 + readData8[23]; FMshadowReg[6] = readData8[24]*0x100 + readData8[25]; FMshadowReg[7] = readData8[26]*0x100 + readData8[27]; FMshadowReg[8] = readData8[28]*0x100 + readData8[29]; FMshadowReg[9] = readData8[30]*0x100 + readData8[31]; #endif //clear STC writeData8[0] = 0xd0; //0x02 0xd081 writeData8[1] = 0x81; //0x81; if (i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); //wait STC=0 if(FmWaitSTC0()==0) return(0); return(1); } //================================================================ BYTE FmSeek(BYTE seekDirection) large { BYTE readData8[4]; BYTE writeData8[2]; BOOL fTemp=0; //set seek bit if(seekDirection == 0) writeData8[0] = ((FMshadowReg[2]>>8) | 0x01); // seek down else writeData8[0] = ((FMshadowReg[2]>>8) | 0x03); // seek up writeData8[1] = FMshadowReg[2]; if(i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); //wait STC=1 if(FmWaitSTC1()==0) return(0); //read REG0A&0B if(i2c_rd(I2C_FM,I2C_FM_RD_DATA,4,readData8)==0) return(0); FMshadowReg[10] = readData8[0]*0x100 + readData8[1]; FMshadowReg[11] = readData8[2]*0x100 + readData8[3]; //check whether SF=1 if((readData8[0]&0x20)!=0) fTemp=1; //clear STC writeData8[0] = (FMshadowReg[2] >> 8); writeData8[1] = (FMshadowReg[2]); if(i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); //wait STC=0 if(FmWaitSTC0()==0) return(0); if(fTemp) return(0); else return(1); } //================================================================ BYTE FmEnterSleep(void) large { BYTE writeData8[2]; FMshadowReg[2] = 0xd080; //ENABLE = 0 writeData8[0] = (FMshadowReg[2] >> 8); writeData8[1] = (FMshadowReg[2]); if(i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); } //================================================================ BYTE FmExitSleep(void) large { BYTE readData8[4]; BYTE writeData8[4]; writeData8[0] = 0xd0; //0x02 0xd081 writeData8[1] = 0x81; if (i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); #if(DCXO) //wait 500ms for RCLK stable, for(i=0x500;i>0;i--) for(j=0x500;j>0;j--) ; //wait 500ms for RCLK stable #endif writeData8[0] = 0xd0; //0x02 0xd081 writeData8[1] = 0x81; //tune to orginal channel writeData8[2] = channel; //0x03 writeData8[3] = 0x00; if(i2c_wr(I2C_FM,I2C_FM_WR_DATA,4,writeData8)==0) return(0); //wait STC=1 if(FmWaitSTC1()==0) return(0); if (i2c_rd(I2C_FM,I2C_FM_RD_DATA,4,readData8)==0) return(0); FMshadowReg[10] = readData8[0]*0x100 + readData8[1]; FMshadowReg[11] = readData8[2]*0x100 + readData8[3]; //clear STC writeData8[0] = 0xd0; //0x02 0xd081 writeData8[1] = 0x81; //0x81; if (i2c_wr(I2C_FM,I2C_FM_WR_DATA,2,writeData8)==0) return(0); //wait STC=0 if(FmWaitSTC0()==0) return(0); return(1); } //================================================================ BYTE FmSetMute(void) { BYTE writeData8[2]; FMshadowReg[2] = 0x9881; // MUTE ENABLE = 1