📄 iis.c
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//----------------------------------------------------------
//PORT J GROUP
//Ports : GPJ7 GPJ6 GPJ5
//Signal : L3DATA L3CLOCK L3MODE
//Setting: OUTPUT OUTPUT OUTPUT
// [15:14] [13:12] [11:10]
//Binary : 01 01 01
//----------------------------------------------------------
rGPJDAT = rGPJDAT & ~(L3M|L3C|L3D) |(L3M|L3C); //Start condition : L3M=H, L3C=H
rGPJCON = rGPJCON & ~(0x3<<10) & ~(0x3<<12) & ~(0x3<<14);
rGPJCON |= (0x1<<10) |(0x1<<12) |(0x1<<14);
rGPJPU = rGPJPU & ~(0x7<<5) | (0x7<<5);
//L3 Interface
_WrL3Addr(0x14 + 2); //STATUS (000101xx+10)
_WrL3Data(0x50,0); //0,1,01, 000,0 : Status 0,Reset, 384fs,IIS-bus,no DC-filtering
_WrL3Addr(0x14 + 2); //STATUS (000101xx+10)
_WrL3Data(0x81,0); //bit[7:0] => 1,0,0,0, 0,0,01
//Record Sound via MIC-In
if(mode == 1)
{
_WrL3Addr(0x14 + 2); //STATUS (000101xx+10)
_WrL3Data(0xa2,0); //bit[7:0] => 1,0,1,0,0,0,10
_WrL3Addr(0x14 + 0); //DATA0 (000101xx+00)
_WrL3Data(0xc2, 0); //1100 0,010 : Extended addr(3bits), 010
_WrL3Data(0xf2, 0); //111,100,10 : DATA0, MIC Amplifier Gain 21dB, input channel 2 select (input channel 1 off)
}
//Record Sound via Line-In
if(mode == 2)
{
_WrL3Addr(0x14 + 2); //STATUS (000101xx+10)
_WrL3Data(0xa2,0); //bit[7:0] => 1,0,1,0, 0,0,10
_WrL3Addr(0x14 + 0); //DATA0 (000101xx+00)
_WrL3Data(0xc2, 0); //1100 0,010 : Extended addr(3bits), 010
_WrL3Data(0xf1, 0); //111,100,01 : DATA0, MIC Amplifier Gain 21dB, input channel 1 select (input channel 2 off)
}
if(mode == 3)
{
_WrL3Addr(0x14 + 2); //STATUS (000101xx+10)
_WrL3Data(0xa3,0); // 1,0,1,0,0,0,11 : OGS=0,IGS=1,ADC_NI,DAC_NI,sngl speed,AonDon
_WrL3Addr(0x14 + 0); //DATA0 (000101xx+00)
_WrL3Data(0xc2,0); //11000,010 : DATA0, Extended addr(010)
_WrL3Data(0xff,0); //010,011,01 : DATA0, MS=9dB, Ch1=on Ch2=on
}
}
void IIS_RecSound_DMA1(int mode, unsigned int rec_size)
{
pISR_DMA_SBUS = (unsigned)DMA1_Rec_Done;
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA1);
rIISCON = (0<<5)+(1<<4) + (1<<3) + (1<<1);
rIISMOD = (0<<8) + (1<<6) + (0<<5) + (0<<4) + (1<<3) + (1<<2) + (1<<0);
rIISFCON = (1<<14) + (1<<12);
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
rINTMSK = ~(BIT_DMA_SBUS);
rINTSUBMSK=~(BIT_SUB_DMA1);
//--- DMA1 Initialize
rDISRCC1 = (1<<1) + (1<<0);
rDISRC1 = ((unsigned int)0x44700010);
rDIDSTC1 = (0<<1) + (0<<0);
rDIDST1 = (int)rec_buf;
rDCON1 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(1<<22)+(2<<20)+(rec_size/4);
rDMAREQSEL1 = (3<<1) + (1<<0);
rDMASKTRIG1 = (0<<2) + (1<<1) + (0<<0); //No-stop[2], DMA1 channel On[1], No-sw trigger[0]
if(mode ==1)
printf("\n\nAre you ready to record sound via MIC-In on SMDK2460?");
if(mode ==2)
printf("\n\nAre you ready to record sound via Line-In on SMDK2460?");
printf("\nPress any key to start record!\n");
getchar();
printf("Recording...\n");
//IIS Rx start
rIISCON |= 0x1;
while(!Rec_Done)
{
//printf("STAT1: 0x%x CURR_TC: 0x%x DCDST1: 0x%x\n", rDSTAT1&0x300000, rDSTAT1&0xfffff, rDCDST1);
printf(".");
Delay(2000);
}
Rec_Done = 0;
//IIS Rx stop
Delay(10); //For end of H/W Rx
rIISCON = 0x0; //IIS stop
rDMASKTRIG1 = (1<<2); //DMA1 stop
rIISFCON = 0x0; //For FIFO flush
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA1);
rINTMSK |= (BIT_DMA_SBUS);
rINTSUBMSK |=(BIT_SUB_DMA1);
printf("\nEnd of Record!\n");
}
void IIS_RecSound_DMA1_Repeat(unsigned char *start_addr, unsigned int rec_size)
{
unsigned char Exit_Key;
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
//--- DMA1 Initialize
rDISRCC1 = (1<<1) + (1<<0);
rDISRC1 = ((unsigned int)0x44700010);
rDIDSTC1 = (0<<1) + (0<<0);
rDIDST1 = (int)start_addr;
rDCON1 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<22)+(2<<20)+(rec_size/4);
rDMAREQSEL1 = (3<<1) + (1<<0);
rDMASKTRIG1 = (0<<2) + (1<<1) + (0<<0); //No-stop[2], DMA1 channel On[1], No-sw trigger[0]
printf("\nRecording...\n");
//IIS Rx start
//rIISCON |= 0x1;
while(!Uart_GetKey())
{
Exit_Key=getchar();
if( (Exit_Key == 'x') | (Exit_Key == 'X'))
{
Rec_Done=1;
break;
}
}
//IIS Rx stop
Delay(10); //For end of H/W Rx
rIISCON = 0x0; //IIS stop
rDMASKTRIG1 = (1<<2); //DMA1 stop
rIISFCON = 0x0; //For FIFO flush
printf("\n\nEnd of Record!");
}
void __irq DMA1_Rec_Done(void)
{
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA1);
Rec_Done = 1;
}
void IIS_PlayWave_DMA2(unsigned char *start_addr, unsigned int play_size)
{
unsigned char Exit_Key;
pISR_DMA_SBUS = (unsigned)DMA2_Done;
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA2);
rIISCON = (1<<5) + (0<<4) +(1<<2) + (1<<1);
rIISMOD = (0<<8) + (3<<6) + (0<<5) + (0<<4) + (1<<3) + (1<<2) + (1<<0);
rIISFCON = (1<<15) + (1<<13);
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
rINTMSK = ~(BIT_DMA_SBUS);
rINTSUBMSK=~(BIT_SUB_DMA2);
printf("\nConnect head-phone plug into speaker-out socket on SMDK2460 and Press any key.\n");
getchar();
printf("If you want to exit, Press the 'x' key.\n");
printf("Now Play...\n");
//->
//khs.050510
// added for I2S bug test
printf("If you want to disable IIS tx(PAUSE), Press '0' key\n");
printf("If you want to enable IIS tx, Press '1' key\n");
printf("If you want to stop DMA channel(STOP), Press '2' key\n");
printf("If you want to start DMA channel, Press '3' key\n");
//<-
//DMA2 Register Setting
rDISRC2 = (int)(start_addr);
rDISRCC2 = (0<<1) + (0<<0);
rDIDST2 = ((unsigned int)0x44700010);
rDIDSTC2 = (0<<2) + (1<<1) + (1<<0);
rDCON2 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<22)+(2<<20)+(play_size/4);
rDMAREQSEL2 = (2<<1) + (1<<0);
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop, DMA2 channel On, and No-sw trigger
//IIS Tx Start
rIISCON |= 0x1; //IIS Interface start
while(!Uart_GetKey())
{
Exit_Key=getchar();
//->
//khs.050510
// added for I2S bug test
if(Exit_Key == '0'){
rIISCON |= (1<<3);
printf("\nPAUSE...\n");
}
if(Exit_Key == '1'){
rIISCON &= ~(1<<3);
}
if(Exit_Key == '2'){
rDMASKTRIG2 |= (1<<2);
rIISFCON &= ~(1<<13); //* tx fifo disable
while((rIISFCON & 0x0FC0)!=0); //* wait until tx fifo gets empty
printf("\nSTOP...\n");
}
if(Exit_Key == '3'){
rIISFCON |= (1<<13); //* tx fifo enable
rDISRC2 = (int)(start_addr);
rDMASKTRIG2 &= ~(1<<2);
rDMASKTRIG2 |= (1<<1);
}
//<-
if( (Exit_Key == 'x') | (Exit_Key == 'X'))
break;
//printf("STAT2: 0x%x CURR_TC: 0x%x DCDST2: 0x%x\n", rDSTAT2&0x300000, rDSTAT2&0xfffff, rDCDST2);
}
//IIS Tx Stop
Delay(10); //For end of H/W Tx
rIISCON &= ~(1<<0); //IIS Interface stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFCON = 0x0; //For FIFO flush
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA2);
rINTMSK |= (BIT_DMA_SBUS);
rINTSUBMSK |=(BIT_SUB_DMA2);
printf("\nEnd of Play!\n");
}
void IIS_Paly_Rec_Simul(unsigned char *start_addr, unsigned int play_size)
{
unsigned char Exit_Key;
int i;
pISR_DMA_SBUS = (unsigned)Play_Rec_Simul;
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA1);
rIISCON = (1<<5) + (1<<4) + (0<<3) + (0<<2) + (1<<1);
rIISMOD = (0<<8) + (3<<6) + (0<<5) + (0<<4) + (1<<3) + (1<<2) + (1<<0);
rIISFCON = (1<<15) + (1<<14) + (1<<13) + (1<<12);
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
rINTMSK = ~(BIT_DMA_SBUS);
rINTSUBMSK =~(BIT_SUB_DMA1);
printf("\nConnect head-phone plug into speaker-out socket on SMDK2460 and Press any key.\n");
getchar();
printf("If you want to exit, Press the 'x' key.\n");
printf("Now Play...\n");
//DMA2 Register Setting
rDISRC2 = (int)(start_addr);
rDISRCC2 = (0<<1) + (0<<0);
rDIDST2 = ((unsigned int)0x44700010);
rDIDSTC2 = (0<<2) + (1<<1) + (1<<0);
rDCON2 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<22)+(2<<20)+(play_size/4);
rDMAREQSEL2 = (2<<1) + (1<<0);
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop, DMA2 channel On, and No-sw trigger
//IIS Tx Start
rIISCON |= 0x1; //IIS Interface start
while(1)
{
Delay(10000);
IIS_RecSound_DMA1_Repeat(rec_buf1, REC_LEN_IIS);
if( Rec_Done==1)
break;
}
Rec_Done=0;
//IIS Tx Stop
Delay(10); //For end of H/W Tx
rIISCON &= ~(1<<0); //IIS Interface stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFCON = 0x0; //For FIFO flush
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA1);
rINTMSK |= (BIT_DMA_SBUS);
rINTSUBMSK |=(BIT_SUB_DMA1);
printf("\nEnd of Play!\n");
}
void __irq DMA2_Done(void)
{
rINTMSK |= (BIT_DMA_SBUS);
rINTSUBMSK |=(BIT_SUB_DMA2);
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA2);
//rIISCON &= ~(1<<0);
//rIISCON |= 0x1;
printf("\nP~~~");
rINTMSK = ~(BIT_DMA_SBUS);
rINTSUBMSK=~(BIT_SUB_DMA2);
}
void __irq Play_Rec_Simul(void)
{
rINTMSK |= (BIT_DMA_SBUS);
rINTSUBMSK |=(BIT_SUB_DMA1);
ClearPending(BIT_DMA_SBUS);
rSUBSRCPND=(BIT_SUB_DMA1);
rIISCON &= ~(1<<0);
rIISCON |= 0x1;
printf("\nR~~~");
rINTMSK = ~(BIT_DMA_SBUS);
rINTSUBMSK &=~(BIT_SUB_DMA1);
}
////////////////////////////////////////////////////////////////////////////////////
void _WrL3Addr(unsigned char data)
{
int i,j;
rGPJDAT = rGPJDAT & ~(L3D | L3M | L3C) | L3C; //L3D=L, L3M=L(in address mode), L3C=H
for(j=0;j<4;j++); //tsu(L3) > 190ns
//GPB[4:2]=L3C:L3D:L3M
for(i=0;i<8;i++) //LSB first
{
if(data & 0x1) //If data's LSB is 'H'
{
rGPJDAT &= ~L3C; //L3C=L
rGPJDAT |= L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPJDAT |= L3C; //L3C=H
rGPJDAT |= L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
else //If data's LSB is 'L'
{
rGPJDAT &= ~L3C; //L3C=L
rGPJDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPJDAT |= L3C; //L3C=H
rGPJDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
data >>= 1;
}
rGPJDAT = rGPJDAT & ~(L3D | L3M | L3C) | (L3C | L3M); //L3M=H,L3C=H
}
void _WrL3Data(unsigned char data,int halt)
{
int i,j;
if(halt)
{
rGPJDAT = rGPJDAT & ~(L3D | L3M | L3C) | L3C; //L3C=H(while tstp, L3 interface halt condition)
for(j=0;j<4;j++); //tstp(L3) > 190ns
}
rGPJDAT = rGPJDAT & ~(L3D | L3M | L3C) | (L3C | L3M); //L3M=H(in data transfer mode)
for(j=0;j<4;j++); //tsu(L3)D > 190ns
//GPB[4:2]=L3C:L3D:L3M
for(i=0;i<8;i++)
{
if(data & 0x1) //if data's LSB is 'H'
{
rGPJDAT &= ~L3C; //L3C=L
rGPJDAT |= L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPJDAT |= (L3C | L3D); //L3C=H,L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
else //If data's LSB is 'L'
{
rGPJDAT &= ~L3C; //L3C=L
rGPJDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPJDAT |= L3C; //L3C=H
rGPJDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
data >>= 1; //For check next bit
}
rGPJDAT = rGPJDAT & ~(L3D | L3M | L3C) | (L3C | L3M); //L3M=H,L3C=H
}
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