?? iis.c
字號:
/*
*********************************************************
* Copyright (c)
* All rights reserved.
*
* 文件名稱：Uart0.c
* 文件標識：
* 摘 要：S3C2410 IIS (UDA1341) Record & Play Test Program
* (DMA2, Double Buffer, Record, Play)
* 當前版本：1.0
* 作 者：劉征
* 完成日期：2005.4.3
*
* 取代版本：
* 作 者：
* 完成日期：
*********************************************************
*/
/*
*********************************************************
* 頭文件
*********************************************************
*/
#include "2410addr.h"
#include "2410lib.h"
#include "def.h"
#include "iis.h"
#include "wave.h"
#include "wave1.h"
/*
*********************************************************
* 函數原型
*********************************************************
*/
void ChangeDMA2(void);
void IIS_PortSetting(void);
void _WrL3Addr(U8 data);
void _WrL3Data(U8 data,int halt);
void __irq DMA2_Done(void);
void __irq DMA2_Rec_Done(void);
void __irq RxInt(void);
void __irq Muting(void);
/*
*********************************************************
* 常量
*********************************************************
*/
#define L3C (1<<4) //GPB4 = L3CLOCK
#define L3D (1<<3) //GPB3 = L3DATA
#define L3M (1<<2) //GPB2 = L3MODE
#define PLAY 0
#define RECORD 1
//#define REC_LEN 0x50000 //327,680 Bytes
#define REC_LEN 0x100000 //1,048,576 Bytes
#define DataCount 0x10000 //IIS Master/Slave Data Rx/Tx Count
#define DataDisplay 0x100 //IIS Master Data Display Count
#define PollMode 0 //1: Polling Mode
#define DMA2Mode 1 //1: DMA2 Mode
/*
*********************************************************
* 變量
*********************************************************
*/
unsigned char *_temp;
unsigned short *rec_buf;
volatile unsigned int size = 0;
volatile unsigned int fs = 0;
volatile char which_Buf = 1;
volatile char Rec_Done = 0;
volatile char mute = 1;
//------------------------------------------------------------------------------
// S3c2410 IIS Configuration
// GPB4 = L3CLOCK, GPB3 = L3DATA, GPB2 = L3MODE
// GPE4 = I2SSDO, GPE3 = I2SSDI, GPE2 = CDCLK, GPE1 = I2SSCLK, GPE0 = I2SLRCK
//------------------------------------------------------------------------------
/*
*********************************************************
* 函數介紹：本函數是iis play 測試程序。
* 輸入參數：無
* 輸出參數：無
* 返回值 ：無
*********************************************************
*/
void Test_Iis(void)
{
unsigned int save_B, save_E, save_PB, save_PE;
volatile unsigned char key = 0;
Uart_TxEmpty(0);
ChangeClockDivider(1,1); //1:2:4
ChangeMPllValue(0x96,0x5,0x1); //FCLK=135.428571MHz (PCLK=33.857142MHz)
Uart_Init(33857142,115200);
Uart_Printf("[ IIS test (Play) using UDA1341 CODEC ]\n");
save_B = rGPBCON;
save_E = rGPECON;
save_PB = rGPBUP;
save_PE = rGPEUP;
IIS_PortSetting();//set i/o port
//中斷函數入口
pISR_DMA2 = (unsigned)DMA2_Done;
pISR_EINT0 = (unsigned)Muting;
//外部中斷0，串口0，DMA2
rINTMSK = ~(BIT_EINT0 | BIT_DMA2);
_temp = wave;
while(1)
{
Uart_Printf("You select play wave file :\n");
Uart_Printf("'1'--wave file1, '2'--wave file2\n");
Uart_Printf("You put another key ---quit!\n");
key = Uart_Getch();
if(key == '1')
{
_temp = wave;//play wave file 1
}
else if(key == '2')
{
_temp = wave1;//play wave file 2
}
else
{
key = 0; //quit
goto STOP;
}
if(key == '1' || key == '2')
{
//根據WAVE文件的格式得到文件大小
size = *(_temp + 0x28) | *(_temp + 0x29)<<8 | *(_temp + 0x2a)<<16 | *(_temp + 0x2b)<<24;
size = (size>>1)<<1;
//根據WAVE文件的格式得到采樣率
fs = *(_temp + 0x18) | *(_temp + 0x19)<<8;
Uart_Printf("Sample Size = 0x%x\n",size/2);
Uart_Printf("Sampling Frequency = %d Hz\n",fs);
Uart_Printf("\n[ Now play the wave file .....]\n");
Uart_Printf("If you want to mute or no mute push the 'EIN0' key repeatedly\n");
//initialize UDA1341
Init1341(PLAY);
//DMA2 Initialize
//0x31000030~(Remove header)
rDISRC2 = (int)(_temp + 0x30);
rDISRCC2 = (0<<1) + (0<<0); //The source is in the system bus(AHB), Increment
rDIDST2 = ((U32)IISFIFO); //IISFIFO
rDIDSTC2 = (1<<1) + (1<<0); //The destination is in the peripheral bus(APB), Fixed
rDCON2 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<24)+(1<<23)+(0<<22)+(1<<20)+(size/4);
//1010 0000 1001 xxxx xxxx xxxx xxxx xxxx
//Handshake[31], Sync PCLK[30], CURR_TC Interrupt Request[29], Single Tx[28], Single service[27],
//I2SSDO[26:24], DMA source selected[23],Auto-reload[22], Half-word[21:20], size/2[19:0]
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop[2], DMA2 channel On[1], No-sw trigger[0]
//IIS Initialize
if(fs==44100) //11.2896MHz(256fs)
rIISPSR = (2<<5) + 2; //Prescaler A,B=2 <- FCLK 135.4752MHz(1:2:4)
else //fs=22050, 5.6448MHz(256fs)
rIISPSR = (5<<5) + 5; //Prescaler A,B=5 <- FCLK 135.4752MHz(1:2:4)
rIISCON = (1<<5) + (1<<2) + (1<<1); //Tx DMA enable[5], Rx idle[2], Prescaler enable[1]
//Master mode[8],Tx mode[7:6],Low for Left Channel[5],IIS format[4],16bit ch.[3],CDCLK 256fs[2],IISCLK 32fs[1:0]
rIISMOD = (0<<8) + (2<<6) + (0<<5) + (0<<4) + (1<<3) + (0<<2) + (1<<0);
rIISFCON = (1<<15) + (1<<13); //Tx DMA,Tx FIFO --> start piling....
Uart_Printf("\nPress 'q'or'Q' to exit!!!\n");
//IIS Tx Start
rIISCON |= 0x1; //IIS Interface start
while(!(key =Uart_Getch()))
{
if((rDSTAT2 & 0xfffff) < (size/6))
{
ChangeDMA2();
}
}
//IIS Tx Stop
Delay(10); //For end of H/W Tx
rIISCON = 0x0; //IIS Interface stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFCON = 0x0; //For FIFO flush
size = 0;
if(key == 'q' || key == 'Q')
{
key = 0;
goto STOP;
}
key = 0;
}
}
STOP:
rGPBCON = save_B;
rGPECON = save_E;
rGPBUP = save_PB;
rGPEUP = save_PE;
rINTMSK = (BIT_DMA2 | BIT_EINT0);//關DMA2中斷及外部中斷0
ChangeMPllValue(0xa1,0x3,0x1); // FCLK=202.8MHz
Uart_Init(0,115200);
mute = 1;
}
/*
*********************************************************
* 函數介紹：本函數是iis record 測試程序。
* 輸入參數：無
* 輸出參數：無
* 返回值 ：無
*********************************************************
*/
void Record_Iis(void)
{
unsigned int save_B, save_E, save_PB, save_PE;
Uart_TxEmpty(0);
ChangeClockDivider(1,1); //1:2:4
ChangeMPllValue(0x96,0x5,0x1); //FCLK=135428571Hz, PCLK=3.385714MHz
Uart_Init(33857142,115200);
Uart_Printf("[ Record test using UDA1341 ]\n");
save_B = rGPBCON;
save_E = rGPECON;
save_PB = rGPBUP;
save_PE = rGPEUP;
IIS_PortSetting();//I/O set
//Record Buf initialize, Non-cacheable area = 0x31000000 ~ 0x33feffff
rec_buf = (unsigned short *)0x31000000;
pISR_DMA2 = (unsigned)DMA2_Rec_Done;
pISR_EINT0 = (unsigned)Muting;
rINTMSK = ~(BIT_DMA2);
Init1341(RECORD);
//--- DMA2 Initialize
rDISRCC2 = (1<<1) + (1<<0); //APB, Fix
rDISRC2 = ((U32)IISFIFO); //IISFIFO
rDIDSTC2 = (0<<1) + (0<<0); //PHB, Increment
rDIDST2 = (int)rec_buf; //0x31000000 ~
rDCON2 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(1<<24)+(1<<23)+(1<<22)+(1<<20)+REC_LEN;
//Handshake, sync PCLK, TC int, single tx, single service, I2SSDI, I2S Rx request,
//Off-reload, half-word, 0x50000 half word.
rDMASKTRIG2 = (0<<2) + (1<<1) + 0; //No-stop, DMA2 channel on, No-sw trigger
//IIS Initialize
//Master,Rx,L-ch=low,IIS,16bit ch,CDCLK=256fs,IISCLK=32fs
rIISMOD = (0<<8) + (1<<6) + (0<<5) + (0<<4) + (1<<3) + (0<<2) + (1<<0);
rIISPSR = (2<<5) + 2; //Prescaler_A/B=2 <- FCLK 135.4752MHz(1:2:4),11.2896MHz(256fs),44.1KHz
rIISCON = (0<<5) + (1<<4) + (1<<3) + (0<<2) + (1<<1);
//Tx DMA disable,Rx DMA enable,Tx idle,Rx not idle,prescaler enable,stop
rIISFCON = (1<<14) + (1<<12); //Rx DMA,Rx FIFO --> start piling....
Uart_Printf("Press any key to start record!!!\n");
Uart_Getch();
Uart_Printf("Recording...\n");
//Rx start
rIISCON |= 0x1;
while(!Rec_Done);
rINTMSK = BIT_DMA2;
Rec_Done = 0;
//IIS Stop
Delay(10); //For end of H/W Rx
rIISCON = 0x0; //IIS stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFCON = 0x0; //For FIFO flush
Uart_Printf("End of Record!!!\n");
Uart_Printf("Press any key to play recorded data\n");
Uart_Printf("If you want to mute or no mute push the 'EIN0' key repeatedly\n");
Uart_Getch();//得到輸入值
size = REC_LEN * 2;
Uart_Printf("Size = %d\n",size);
//播放錄入的音頻數據
Init1341(PLAY);
pISR_DMA2 = (unsigned)DMA2_Done;
rINTMSK = ~(BIT_DMA2 | BIT_EINT0);
//DMA2 Initialize
rDISRCC2 = (0<<1) + (0<<0); //AHB, Increment
rDISRC2 = (int)rec_buf; //0x31000000
rDIDSTC2 = (1<<1) + (1<<0); //APB, Fixed
rDIDST2 = ((U32)IISFIFO); //IISFIFO
rDCON2 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<24)+(1<<23)+(0<<22)+(1<<20)+(size/2);
//Handshake, sync PCLK, TC int, single tx, single service, I2SSDO, I2S request,
//Auto-reload, half-word, size/2
rDMASKTRIG2 = (0<<2)+(1<<1)+0; //No-stop, DMA2 channel on, No-sw trigger
//IIS Initialize
//Master,Tx,L-ch=low,iis,16bit ch.,CDCLK=256fs,IISCLK=32fs
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