📄 wm8753.c
字号:
ret += wm8753_i2c_write(0x34, WM8753_LOUTM1, 0x0180);
/* enable right mixer */
ret += wm8753_i2c_write(0x34, WM8753_ROUTM1, 0x0180);
//set LDAC & RDAC Volume output
/* WM8753_LDAC :R8 (8h) Left Channel Digital Volume
Left Volume DAC update
8 LDVU 0 store LDACVOL in intermediate latch(no gain change)
1 Update left and right channel gains(left=LDACVOL, right=intermediate latch)
LDACVOL :Left DAC Digital Volume Control
7:0 LDACVOL 00000000 Digital Mute
00000001 -127DB
...... 0.5DB steps up to
11111111 0DB
*/
wm8753_i2c_write(0x34, WM8753_LDAC, 0x01ff);
/* WM8753_RDAC :R8 (8h) right Channel Digital Volume
right Volume DAC update
8 RDVU 0 store RDACVOL in intermediate latch(no gain change)
1 Update left and right channel gains(right=RDACVOL, left=intermediate latch)
LDACVOL :Left DAC Digital Volume Control
7:0 RDACVOL 00000000 Digital Mute
00000001 -127DB
...... 0.5DB steps up to
11111111 0DB
*/
wm8753_i2c_write(0x34, WM8753_RDAC,0x01ff); /*left right out1 volume */
ret +=wm8753_i2c_write(0x34, WM8753_LOUT1V, 0x0166);//ggggggggggggggggggggggggggg160
ret +=wm8753_i2c_write(0x34, WM8753_ROUT1V, 0x0166);//ggggggggggggggggggg160
/* set up default output audio paths, enable right out 2 */
ret += wm8753_i2c_write(0x34, WM8753_ROUTM2, 0x0103);
/* unmute hifi DAC */
ret += wm8753_i2c_write(0x34, WM8753_DAC, 0x0);
out:
return ret != 0 ? -1 : 0;
}
//============================
void * func_iis_test[][2]=
{
//IIS Function Test Item
(void *)Play_Wave_IIS, "Play Wave File. ",
(void *)RecordSound_ViaMICIn_IIS, "Record Sound via MIC-In and Play it. ",
(void *)RecordSound_ViaLineIn_IIS, "Record Sound via Line-In and Play it. ",
0,0
};
void IIS_Test(void)
{
#if 0
int i;
while(1)
{
i=0;
Uart_Printf("\n\n================== IIS Function Test =====================\n\n");
while(1)
{ //display menu
Uart_Printf("%2d:%s",i,func_iis_test[i][1]);
i++;
if((int)(func_iis_test[i][0])==0)
{
Uart_Printf("\n");
break;
}
if((i%2)==0)
Uart_Printf("\n");
}
Uart_Printf("\n==========================================================\n");
Uart_Printf("\nPress Enter key to exit : ");
i = Uart_GetIntNum();
if(i==-1) break; // return.
if(i>=0 && (i<((sizeof(func_iis_test)-1)/8)) ) // select and execute...
( (void (*)(void)) (func_iis_test[i][0]) )();
}
#else
Play_Wave_IIS();
#endif
}
//Play Wave File
void Play_Wave_IIS(void)
{
int i;
int ret = 0;
Uart_Printf("\nPlay Wave File.\n");
char *wavefile = "denglu.wav";
// for(i=0; i<600*1024; i++){
// wav[i] = (unsigned short )((rand() % 100) * i);
// }
IIS_Port_Init();
Select_IIS_Master_CLK();
// Download_Wave_File();
// Open_Wave_File(wavefile);
// Init1341(PLAY_IIS);
if ((ret = wm8753_init()) != 0) {
Uart_Printf("can't initialise WM8753 \n");
return;
}
// IIS_PlayWave_DMA2(Buf+0x30, size);
IIS_PlayWave_DMA2((unsigned char *)(0x31000000), 155760);
IIS_Port_Return();
mute = 1;
return;
}
//Record Sound via MIC-In
void RecordSound_ViaMICIn_IIS(void)
{
int ret = 0;
Uart_Printf("\nRecord Sound via MIC-In.\n");
IIS_Port_Init();
Select_IIS_Master_CLK();
// Init1341(RECORD_MICIn);
if ((ret = wm8753_init()) != 0) {
Uart_Printf("can't initialise WM8753 \n");
return;
}
IIS_RecSound_DMA1(RECORD_MICIn, REC_LEN_IIS);
// Init1341(PLAY_IIS);
IIS_PlayWave_DMA2(rec_buf, REC_LEN_IIS);
IIS_Port_Return();
mute = 1;
}
//Record Sound via Line-In
void RecordSound_ViaLineIn_IIS(void)
{
Uart_Printf("\nRecord Sound via Line-In.\n");
IIS_Port_Init();
Select_IIS_Master_CLK();
Init1341(RECORD_LineIn);
IIS_RecSound_DMA1(RECORD_LineIn, REC_LEN_IIS);
Init1341(PLAY_IIS);
IIS_PlayWave_DMA2(rec_buf, REC_LEN_IIS);
IIS_Port_Return();
mute = 1;
}
/* Sub-Routines */
//Setting Port related to IIS
void IIS_Port_Init(void)
{
save_B = rGPBCON;
save_E = rGPECON;
save_PB = rGPBUP;
save_PE = rGPEUP;
//----------------------------------------------------------
// PORT B GROUP
//Ports : GPB4 GPB3 GPB2
//Signal : L3CLOCK L3DATA L3MODE
//Setting: OUTPUT OUTPUT OUTPUT
// [9:8] [7:6} [5:4]
//Binary : 01 , 01 01
//----------------------------------------------------------
rGPBUP = rGPBUP & ~(0x7<<2) | (0x7<<2); //The pull up function is disabled GPB[4:2] 1 1100
rGPBCON = rGPBCON & ~(0x3f<<4) | (0x15<<4); //GPB[4:2]=Output(L3CLOCK):Output(L3DATA):Output(L3MODE)
//----------------------------------------------------------
// PORT E GROUP
//Ports : GPE4 GPE3 GPE2 GPE1 GPE0
//Signal : I2SSDO I2SSDI CDCLK I2SSCLK I2SLRCK
//Binary : 10 , 10 10 , 10 10
//----------------------------------------------------------
rGPEUP = rGPEUP & ~(0x1f) | 0x1f; //The pull up function is disabled GPE[4:0] 1 1111
rGPECON = rGPECON & ~(0x3ff) | 0x2aa; //GPE[4:0]=I2SSDO:I2SSDI:CDCLK:I2SSCLK:I2SLRCK
rGPFUP = ((rGPFUP & ~(1<<0)) | (1<<0)); //GPF0
rGPFCON = ((rGPFCON & ~(3<<0)) | (1<<1)); //GPF0=EINT0
rEXTINT0 = ((rEXTINT0 & ~(7<<0)) | (2<<0)); //EINT0=falling edge triggered
}
void IIS_Port_Return(void)
{
rGPBCON = save_B;
rGPECON = save_E;
rGPBUP = save_PB;
rGPEUP = save_PE;
}
void Download_Wave_File(void)
{
unsigned int temp;
pISR_UART1 = (unsigned)RxInt;
rINTMSK = ~(BIT_UART1);
rINTSUBMSK = ~(BIT_SUB_RXD1);
//Non-cacheable area = 0x31000000 ~ 0x33feffff
Buf = (unsigned char *)0x31000000;
_temp = Buf;
Uart_Printf("\n\nDownload the PCM(no ADPCM) file by DNW serial port(With header)!!\n");
Uart_Printf("Download Start Address: 0x%x\n", Buf);
while(((unsigned int)_temp - (unsigned int)Buf) < 4)
{
//Led_Display(0);
Delay(1500);
//Led_Display(15);
Delay(1500);
}
size = *(Buf) | *(Buf + 1)<<8 | *(Buf + 2)<<16 | *(Buf + 3)<<24;
Uart_Printf("\nNow, Downloading... [ File Size : %7d 0]", size);
while(((unsigned int)_temp - (unsigned int)Buf) < size)
Uart_Printf("\b\b\b\b\b\b\b\b%7d ",(unsigned int)_temp - (unsigned int)Buf);
Uart_Printf("\b\b\b\b\b\b\b\b%7d ]\n",(unsigned int)_temp - (unsigned int)Buf);
rINTSUBMSK |= BIT_SUB_RXD1;
size = *(Buf + 0x2c) | *(Buf + 0x2d)<<8 | *(Buf + 0x2e)<<16 | *(Buf + 0x2f)<<24;
size = (size>>1)<<1;
fs = *(Buf + 0x1c) | *(Buf + 0x1d)<<8 | *(Buf + 0x1e)<<16 | *(Buf + 0x1f)<<24;
Uart_Printf("Sample PCM Data Size = %d\n", size);
Uart_Printf("Sampling Frequency = %d Hz\n", fs);
}
void Open_Wave_File(char *filename)
{
int fd;
int readsize;
Buf = (unsigned char *)0x31000000;
fd = open(filename, 0);
if((readsize = read(fd, Buf, 0x800)) <= 0)
{
Uart_Printf("open file:%s error!\n", filename);
return;
}
close(fd);
size = *(Buf + 0x2c) | *(Buf + 0x2d)<<8 | *(Buf + 0x2e)<<16 | *(Buf + 0x2f)<<24;
size = (size>>1)<<1;
fd = open(filename, 0);
if((readsize = read(fd, Buf, size)) <=0)
{
Uart_Printf("open file:%s error!\n", filename);
return;
}
close(fd);
size = *(Buf + 0x2c) | *(Buf + 0x2d)<<8 | *(Buf + 0x2e)<<16 | *(Buf + 0x2f)<<24;
size = (size>>1)<<1;
fs = *(Buf + 0x1c) | *(Buf + 0x1d)<<8 | *(Buf + 0x1e)<<16 | *(Buf + 0x1f)<<24;
Uart_Printf("Sample PCM Data Size = %d\n", size);
Uart_Printf("Sampling Frequency = %d Hz\n", fs);
}
void IIS_RecSound_DMA1(int mode, U32 rec_size)
{
pISR_DMA1 = (unsigned)DMA1_Rec_Done;
if (IIS_MasterClk_Sel == 0) //IIS Master Clock Source = PCLK
{
rIISCON = (1<<4) + (1<<3) + (1<<1);
rIISMOD = (0<<9)+(0<<8) + (1<<6) + (0<<5) + (0<<4) + (1<<3) + (1<<2) + (1<<0);
rIISFCON = (1<<14) + (1<<12);
Uart_Printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
}
else //IIS Master Clock Source = MPLLin
{
rIISCON = (1<<4) + (1<<3) + (1<<1);
rIISMOD = (1<<9)+(0<<8) + (1<<6) + (0<<5) + (0<<4) + (1<<3) + (1<<2) + (1<<0);
rIISFCON = (1<<14) + (1<<12);
Uart_Printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
}
rINTMSK = ~(BIT_DMA1);
//--- DMA1 Initialize
rDISRCC1 = (1<<1) + (1<<0);
rDISRC1 = ((U32)IISFIFO);
rDIDSTC1 = (0<<1) + (0<<0);
rDIDST1 = (int)rec_buf;
rDCON1 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(2<<24)+(1<<23)+(1<<22)+(1<<20)+(rec_size/2);
rDMASKTRIG1 = (0<<2) + (1<<1) + 0; //No-stop, DMA1 channel on, No-sw trigger
if(mode ==1)
Uart_Printf("\n\nAre you ready to record sound via MIC-In on SMDK2440?");
if(mode ==2)
Uart_Printf("\n\nAre you ready to record sound via Line-In on SMDK2440?");
Uart_Printf("\nPress any key to start record!\n");
Uart_Getch();
Uart_Printf("Recording...\n");
//IIS Rx start
rIISCON |= 0x1;
while(!Rec_Done)
{
Uart_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
rINTMSK |= (BIT_DMA1);
Uart_Printf("\nEnd of Record!\n");
}
void IIS_PlayWave_DMA2(unsigned char *start_addr, U32 play_size)
{
pISR_DMA2 = (unsigned)DMA2_Done;
pISR_EINT0 = (unsigned)Muting;
if (IIS_MasterClk_Sel == 0) //IIS Master Clock Source = PCLK
{
rIISCON = (1<<5) + (1<<2) + (1<<1);
rIISMOD = (0<<9)+(0<<8) + (2<<6) + (0<<5) + (0<<4) + (1<<3) + (1<<2) + (1<<0);
rIISFCON = (1<<15) + (1<<13);
Uart_Printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
}
else //IIS Master Clock Source = MPLLin
{
rIISCON = (1<<5) + (1<<2) + (0<<1);
rIISMOD = (1<<9)+(0<<8) + (2<<6) + (0<<5) + (0<<4) + (1<<3) + (1<<2) + (1<<0);
rIISFCON = (1<<15) + (1<<13);
Uart_Printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
}
rINTMSK = ~(BIT_EINT0 | BIT_DMA2);
//DMA2 Register Setting
rDISRC2 = (int)(start_addr);
rDISRCC2 = (0<<1) + (0<<0);
rDIDST2 = ((U32)IISFIFO);
rDIDSTC2 = (0<<2) + (1<<1) + (1<<0);
rDCON2 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<24)+(1<<23)+(0<<22)+(1<<20)+(play_size/2);
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop, DMA2 channel On, and No-sw trigger
Uart_Printf("\nIf you want to mute or no mute, Push the 'EIN0' button repeatedly.\n");
Uart_Printf("Press any key to exit!\n");
Uart_Printf("\nPlay...\n");
//IIS Tx Start
rIISCON |= 0x1; //IIS Interface start
while(!Uart_GetKey());
//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
rINTMSK |= (BIT_EINT0 | BIT_DMA2);
Uart_Printf("\nEnd of Play!\n");
}
void Select_IIS_Master_CLK(void)
{
int sel;
//Uart_Printf("\nIIS Master Clock Source => MPLLin\n");
#if 0
Uart_Printf("\nSelect IIS Master Clock Source\n");
Uart_Printf("0:PCLK, 1:MPLLin\n");
sel = Uart_GetIntNum();
#else
sel = 0;
#endif
switch(sel)
{
case 0 :
//IIS Pre-scaler Setting
rIISPSR = (2<<5) + 2;
rIISMOD = (0<<9);
// ChangeClockDivider(13,12); //FCLK:HCLK:PCLK =295MHz:98.33MHz:49.2MHz
// ChangeMPllValue(97,1,2); //295Mhz
Delay(100);
// Calc_Clock(0);
// UPDATE_REFRESH(Hclk);
Uart_Init(PCLK, 115200);
Uart_Select(2);
Uart_TxEmpty(2);
Delay(0); //calibrate Delay()
//In case PCLK = 50 MHz, IIS Codec CLK = 50/(5+1) = 8.34MHz
Uart_Printf("\nIIS Master CLK(PCLK) = %4.2f MHz", (float)PCLK/MEGA);
IIS_Codec_CLK = (float)PCLK/3;
Uart_Printf("\nIIS Codec CLK = %4.2f MHz", IIS_Codec_CLK/MEGA);
IIS_MasterClk_Sel = 0;
break;
case 1 :
rIISMOD = (1<<9);
Uart_Printf("\nIIS Master CLK(MPLLin) = %4.2f MHz", (float)FIN/MEGA);
IIS_Codec_CLK = (float)FIN;
Uart_Printf("\nIIS Codec CLK = %4.2f MHz", IIS_Codec_CLK/MEGA);
IIS_MasterClk_Sel = 1;
break;
default :
rIISMOD = (1<<9);
Uart_Printf("\nIIS Master CLK(MPLLin) = %4.2f MHz", (float)FIN/MEGA);
IIS_Codec_CLK = (float)FIN;
Uart_Printf("\nIIS Codec CLK = %4.2f MHz", IIS_Codec_CLK/MEGA);
IIS_MasterClk_Sel = 1;
break;
}
}
//Initialization of UDA1341 Audio Codec using L3 Interface
void Init1341(int mode)
{
//Port Initialize
//----------------------------------------------------------
// PORT B GROUP
//Ports : GPB4 GPB3 GPB2
//Signal : L3CLOCK L3DATA L3MODE
//Setting: OUTPUT OUTPUT OUTPUT
// [9:8] [7:6] [5:4]
//Binary : 01, 01, 01
//----------------------------------------------------------
rGPBDAT = rGPBDAT & ~(L3M|L3C|L3D) |(L3M|L3C); //Start condition : L3M=H, L3C=H
rGPBUP = rGPBUP & ~(0x7<<2) |(0x7<<2); //The pull up function is disabled GPB[4:2] 1 1100
rGPBCON = rGPBCON & ~(0x3f<<4) |(0x15<<4); //GPB[4:2]=Output(L3CLOCK):Output(L3DATA):Output(L3MODE)
//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
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -