audiorec.c

SEED的5416声音通讯程序

/*********************************************************************************
*  MCPSB.C	v1.00   测试MCBSP同步串口测试的主程序	                             *
*  版权(c) 	2003-		北京合众达电子技术有限责任公司			                 *
*  设计者：	段立锋								                                 *
**********************************************************************************/
#include "type.h"
#include "codec.h"
#include "uart.h"
#include "sysreg.h"
#include "mcbsp54.h"
#include "memory.h"

/*帧长度的设定*/
#define  FRAMLONGTH    0x104
/*帧类型的设定*/
#define  TESTCODEDATA  0x0
#define  UARTCOMMAND   0x2

/*程序帧的参数设定*/
#define  TESTDATACONT  0x01
#define  TESTDATAEND   0x00
/*命令帧的参数设定*/
#define  UARTCONT      0x0  //命令帧不连续
#define  RECIEVEGOOD   0xAA01//接收正确
#define  RECIEVEERROR  0xAA02//接收错误
#define  RECIEVEEND    0xAA03//接收结束
#define  VAILDFRAME    0xAA04//无效帧
#define  SYSRESET      0xAA05//系统复位
#define  COMMANDNODO   0xAA06//程序不处理命令
#define  AUDIOCOPY     0xAA07//音频存贮开始
#define  AUDIOPLAY     0xAA08//音频回放
#define  AUDIOGAIN     0xAA09//音频增益调整
#define  AUDIOTRY      0xAA0A//音频试听
#define  FLASHERROR    0xAA0B//FLash无法擦除
#define  FLASHWERR     0xAA0C//Flash无法写入
#define  FLASHWOK      0xAA0D//FLASH写入成功
#define  FLASHWEND     0xAA0E//录音结束

#define  INITOVER      0xAA0F//初始化完成 


#define  TESTCODEADDR  0x28000
#define  FLASH_ADDR 0x10000
#define  FLash_ADDR_MAX 0x3FFFF

#define  DataLongth   0x100

typedef struct _UartForDec5416{
	unsigned int Length;
	unsigned int Type;
	unsigned int Mutul;
	unsigned int Data[DataLongth];
	unsigned int Check;
}UartForDec5416, *PuartForDec5416; 

	HANDLE uart_a =0;
	HANDLE codec_command =0;
	HANDLE codec_data=0;
	unsigned int audiodata =0;
	PuartForDec5416 precieve =0;	
	unsigned int i= 0;
	unsigned int k= 0;
	int uart_s=0,uart_err=0,fifostatus=0;
	unsigned long flashbaddr=0;
	unsigned long flashaddr = 0;
	PuartForDec5416 psend=0;
	unsigned int errorsend = 0;
	unsigned int uart[0x104] ={0};
	unsigned int uarts[0x104] = {0};

main()
{	
	/*设置系统时钟*/
	sys_clk(CLK160);
	/*初始化DEC5416板卡*/
	dec5416_init();
	for(i= 0; i<0x104;i++)
	{
		uart[i] = 0x5555;
		uarts[i] = 0x5555;
	}
	/*打开codec数据接口*/
	codec_data = codec_open(CODEC_DATA);
	/*打开codec命令接口*/
	codec_command = codec_open(CODEC_COMMAND);
	/*选择麦克风作为输入*/
	codec_analog_mode(codec_command,0x14);
	/*设置波特率,输入与输出均为8K*/
	codec_sample_rate(codec_command,0xd);
	
	/*获取有效的串口句柄*/
	uart_a = uart_open(UART_A);
	/*初始化串口*/
	uart_setup(uart_a,    /*串口A*/
			   buad_19k2,  /*串口的波特率设置*/
			   data_w8,   /*数据长度为8*/ 
			   data_s1,   /*数据停止位为1*/ 
			   //uart_parity,    /*设置奇较验位*/	 
			   0,
			   (fifo_enable+fifo_txdip16+fifo_rxdip16),/*FIFO设置*/ 
			   0);       /*设置自闭环方式*/		   
	/*串口A中断设置*/		   
	uart_interrupt_control( uart_a, uartint_rhr, uart_enable);
	/*设置接收长度*/
	uart_reclong_set(uart_a,FRAMLONGTH);
	/*打开系统的串口中断*/
	sysint_enable(0x2);
	
	/*配置系统存储器*/	
	memory_set(0x80);
	
	/*实验主控程序*/
	psend =  (PuartForDec5416)(&uarts[0]);
	/*通知主机，系统准备好*/
	psend->Length = FRAMLONGTH;
	psend->Type = UARTCOMMAND;
	psend->Data[0] = INITOVER;
	psend->Mutul = UARTCONT;
	uart_send(uart_a,FRAMLONGTH, (unsigned int *)psend);
	for(;;)
	{	
		uart_recive(uart_a,&uart[0]);
		/*判断串口的状态*/
		uart_s =uart_status(uart_a);
		if( uart_s == 2)
		{
			/*读RHR清 RHR interrupt*/
			uart_read_reg(uart_a,rhr);
			/*复位FIFO指针*/
			fifostatus = uart_read_reg(uart_a,fcr);
			uart_write_reg(uart_a,fcr,fifo_rreset);
			uart_write_reg(uart_a,fcr,fifostatus);
			continue;	
		}
		/*串口出错*/
		if(uart_s == ERROR)
		{
			/*读状态寄存器*/
			uart_err = uart_read_reg(uart_a,lsr);
			/*复位FIFO指针*/
			fifostatus = uart_read_reg(uart_a,fcr);
			uart_write_reg(uart_a,fcr,fifo_rreset);
			uart_write_reg(uart_a,fcr,fifostatus);
			/*通知主机程序通讯出错,准备重发*/
			psend->Length = FRAMLONGTH;
			psend->Type = UARTCOMMAND;
			psend->Data[0] =  RECIEVEERROR;
			psend->Mutul = UARTCONT;
			uart_send(uart_a,FRAMLONGTH-1, (unsigned int *)psend);
			continue;
		}
		/*数据较验出错*/
		if(uart_s == 3)
		{
			/*通知主机程序通讯出错,准备重发*/
			psend->Length = FRAMLONGTH;
			psend->Type = UARTCOMMAND;
			psend->Data[0] =  RECIEVEERROR;
			psend->Mutul = UARTCONT;
			uart_send(uart_a,FRAMLONGTH-1, (unsigned int *)psend);
			continue;	
		}
		/*数据未准备好*/
		if(uart_s == 0)
		{
			precieve = (PuartForDec5416)(&uart[0]);
			/*不是命令帧*/
			if(precieve->Type != UARTCOMMAND)
			{
				/*无效命令*/
				psend->Length = FRAMLONGTH;
				psend->Type = UARTCOMMAND;
				psend->Data[0] =  COMMANDNODO;
				psend->Mutul = UARTCONT;
				uart_send(uart_a,FRAMLONGTH-1, (unsigned int *)psend);	
			}
			continue;
		}
		/*接收从主机的数据*/
		precieve = (PuartForDec5416)(&uart[0]);
		switch(precieve->Data[0])
		{
			/*音频试听*/
			case AUDIOTRY:
				/* Wait for sample from handset */
				while (!MCBSP_RRDY(CODEC_DATA)) {};

				/* Read sample from and write back to handset codec */
				audiodata = *(volatile u16*)DRR1_ADDR(CODEC_DATA);
				*(volatile u16*)DXR1_ADDR(CODEC_DATA) = audiodata;
				break;
				
			/*音频增益调整*/	
			case AUDIOGAIN:
				codec_headhponeout_gain(codec_command, precieve->Data[1]);
				precieve->Data[0] = AUDIOTRY;
				break;
				
			/*音频存贮开始*/	
			case AUDIOCOPY:
				/*清除旧的音频数据*/
				for(flashbaddr = 0x410000; flashbaddr<0x440000; flashbaddr=flashbaddr+0x8000)
				{
					if(flash_erase(flashbaddr,BLOCK_ERASE) == 0)
					{
						/*FLash无法擦除*/
				 		psend->Length = FRAMLONGTH;
						psend->Type = UARTCOMMAND;
						psend->Data[0] = FLASHERROR;
						psend->Mutul = UARTCONT;
						uart_send(uart_a,FRAMLONGTH, (unsigned int *)psend);
						precieve->Data[0] =0;
						break;	
   					}
				}
				flashaddr = FLASH_ADDR;
				for(;;)
				{
					/* Wait for sample from handset */
   					while (!MCBSP_RRDY(CODEC_DATA)) {};

   					/* Read sample from and write back to handset codec */
   					audiodata = *(volatile u16*)DRR1_ADDR(CODEC_DATA);
   					if(flash_writes(flashaddr++,audiodata)==0)
   					{
   						/*FLash无法写入*/
					 	psend->Length = FRAMLONGTH;
						psend->Type = UARTCOMMAND;
						psend->Data[0] = FLASHWERR;
						psend->Mutul = UARTCONT;
						uart_send(uart_a,FRAMLONGTH, (unsigned int *)psend);
						precieve->Data[0] =0;
						break;		
   					}
   					k=k+1;
   					if(!(k-0x4000))
   					{
   						/*FLash写入成功*/
					 	psend->Length = FRAMLONGTH;
						psend->Type = UARTCOMMAND;
						psend->Data[0] = FLASHWOK;
						psend->Mutul = UARTCONT;
						uart_send(uart_a,FRAMLONGTH, (unsigned int *)psend);	
   					}
   					if(flashaddr-FLash_ADDR_MAX == 0)
   					{
   						/*录音结束*/
					 	psend->Length = FRAMLONGTH;
						psend->Type = UARTCOMMAND;
						psend->Data[0] = FLASHWEND;
						psend->Mutul = UARTCONT;
						uart_send(uart_a,FRAMLONGTH, (unsigned int *)psend);
						precieve->Data[0] =0;
   						break;
   					} 
				}
				break;
					
			/*音频回放*/		
			case AUDIOPLAY:
				flashaddr = FLASH_ADDR;
				for(;;)
				{
					audiodata = flash_reads(flashaddr++);
					/* Wait for sample from handset */
   					while (!MCBSP_XRDY(CODEC_DATA)) {};
   						
   					/*write back to handset codec */
   					*(volatile u16*)DXR1_ADDR(CODEC_DATA) = audiodata;
   					if(flashaddr - FLash_ADDR_MAX == 0)
   					{
   						break;
   					}
				}
				break;
				
			/*系统复位*/
			case SYSRESET:
				sys_set(0x4);
				break;
			
			default:
				break;
		} 		
	}							     
}