📄 5502_usb.c
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/***************************************************
File: seeddec5502usb.c
Author: Lifeng Duan
Created: 21/11/2003
Description:Evaluates the use of SX2 with DSP
Copyright (C) SEED SEMICONDUCTOR, 2003
*****************************************************/
#include <csl.h>
#include <csl_pll.h>
#include <csl_irq.h>
#include <csl_dma.h>
#include <csl_i2c.h>
#include <csl_mcbsp.h>
#include <csl_gpt.h>
#include "model.h"
#include "main.h"
#include "5502_flash.h"
#include "sysreg.h"
#include "CODEC_H"
#include "type.h"
#include "sx2.h"
#include "descriptors.h"
#include "ep0Req.h"
#include "timer.h"
#define decintreg 0x2
#define USBINT 0x10
void delay();
/* external variables */
extern char desctbl[];
/* global variables */
extern BYTE irqValue; /* interrupt register value */
extern BYTE setupBuff[8]; /* setup transaction buffer */
extern BOOL sx2Ready; /* status byte for POST */
extern BOOL sx2BusActivity; /* status byte for suspend */
extern BOOL sx2EnumOK; /* status byte for enumeration complete */
extern BOOL sx2EP0Buf; /* status for endpoint 0 buffer */
extern BOOL sx2Setup; /* setup flag set in Int0() ISR */
extern BOOL readFlag;
extern BOOL FLAGS_READ; /* FIFO的状态读请求*/
extern BOOL buffer_halffull;
extern BOOL buffer_full;
/* global variables specific to this test firmware */
extern unsigned char keepAliveCnt; /* counter of Timer0 interrupts */
HANDLE codec_command =0;
HANDLE codec_data=0;
unsigned int FifoWriteCnt ;
unsigned int epdatar[512] ;
unsigned int epdataw[512] ;
unsigned int epdataw1[256];
/* MCBSP接收缓冲区 */
#pragma DATA_SECTION(codecdat,".codec_buffer")
unsigned int codecdat[0x400];
DMA_Handle MyhDma;
void main()
{
unsigned int regValue = 0; /* register value from a read */
unsigned int Sx2int = 0; /*SX2的中断状态*/
unsigned int Usb2or11= 0; /*USB工作在哪一个标准上*/
unsigned int endpoint0count = 0;/*EP0的数据长度*/
unsigned int endpoint0data[64] ={0};/*EP0的数据缓冲区*/
unsigned int i = 0;
unsigned int FifoStatus24 = 0; /*FIFO24的状态标识*/
unsigned int FifoStatus68 = 0; /*FIFO68的状态标识*/
unsigned int Fifostatus = 0;
unsigned int Fifolong = 0; /*FIFO的长度*/
BOOL hshostlink = False; /*为真是高速USB接口，为假是低速USB接口*/
BOOL codec_runing = False;
BOOL codec_halt = False;
BOOL codec_rev = False;
BOOL codec_play = False;
BOOL codec_datok = False;
BOOL codec_horfull = True;
BOOL codec_back = False;
unsigned int codec_count = 0;
unsigned int codec_sample = 0;
unsigned int codec_regvalue = 0;
unsigned int audiodata =0;
unsigned int RecievedDataLongth = 0;
unsigned int LedCount = 0; /*记录LED定时器的次数*/
unsigned int DataToEndpoint0 = 0;/*写入到Endpoint0的数据缓冲*/
unsigned long flashbaddr = 0;
unsigned int flashdata = 0;
unsigned int flasherr = 0;
unsigned long flashlong = 0;
/*设置系统时钟*/
//sys_clk(CLK160);
/*初始化DEC5416板卡*/
//dec5416_init();
/*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);
/*配置系统存储器*/
//memory_set(0x80);
/* 初始化CSL库，配置USB和定时器中断 */
Csl_Config();
/*设置系统的运行速度为160MHz*/
PLL_setFreq(1, 0x8, 0, 1, 1, 3, 0);
/*初始化DEC5502板卡*/
//dec5502_init();
/* 配置I2C */
I2C_setup(&Setup);
/*配置EMIF为全EMIF接口并初始化DSP的外部EMIF*/
CHIP_RSET(XBSR,0x0001);
EMIF_config(&MyEmifConfig);
/* 配置CODEC */
Codec_Config();
/*工作在USB2.0标准*/
/*dma全局寄存器的初始化*/
MyDma_Config();
for(i = 0;i<0x200;i++)
{
codecdat[i] = 0;
}
/*xf的LED灯闪三下*/
for(i = 0;i<3;i++)
{
//asm(" RSBX XF");
asm(" BCLR XF");
delay();
//asm(" SSBX XF");
asm(" BSET XF");
delay();
}
/*判断CY68001是否准备好*/
for(;;)
{
/*判断是否有中断到来*/
//regValue = sysreg_read(decintreg);
regValue = SYSSTAT1;
if((regValue & USBINT) ==0)
{
/*判断是何种中断，并清中断*/
Sx2int = USB_Command_Read();
if(Sx2int &(SX2_INT_ENUMOK + SX2_INT_READY))
{
/*打开系统的串口中断*/
//sysint_enable(0x4);
SysInt_Enable();
break;
}
}
else
{
/*打开系统的串口中断*/
//sysint_enable(0x4);
SysInt_Enable();
break;
}
}
/*自举循环*/
while(TRUE)
{
/* initialize global variables */
readFlag = False; /* false until register read */
sx2Ready = False; /* false until POST or wakeup */
sx2BusActivity = False; /* false until absence or resumption of USB bus activity */
sx2EnumOK = False; /* false until ENUMOK interrupt */
sx2EP0Buf = False; /* false until EP0BUF interrupt */
sx2Setup = False; /* false until SETUP interrupt */
/* Initialize global variables specific to this test firmware */
keepAliveCnt = 0;
/* Initialize local variables */
/* reusable variable for read register data */
regValue = 0;
/* load descriptor tables; halt if load fails */
if(!Load_descriptors(DESCTBL_LEN, &desctbl[0]))
{
while(True);
}
/*装载描述表后，等待自举成功*/
while(!sx2EnumOK);
sysint_enable(); /*打开系统的串口中断*/
/*设置当前的接口的形式*/
Write_SX2reg(SX2_IFCONFIG , 0xE8);
/*设置当前系统中各使能信号的极性
其中SLOE、SLRD、SLWR只能有EEPROM来配置*/
Write_SX2reg(SX2_FIFOPOLAR, SX2_WUPOL | SX2_EF | SX2_FF);
/*读取当前工作在哪个USB的标准*/
Read_SX2reg(SX2_FNADDR, &Usb2or11);
hshostlink = (Usb2or11 & SX2_HSGRANT) ? True : False;
/*初始化USB的工作状态*/
if(hshostlink ==True)
{
/*工作在2.00标准,设定数字接口为16位，数据包的大小为512字节*/
Fifolong = 0x100;
Write_SX2reg(SX2_EP2PKTLENH , SX2_WORDWIDE | 0x02);
Write_SX2reg(SX2_EP2PKTLENL , 0x00);
Write_SX2reg(SX2_EP4PKTLENH , SX2_WORDWIDE | 0x02);
Write_SX2reg(SX2_EP4PKTLENL , 0x00);
Write_SX2reg(SX2_EP6PKTLENH , SX2_WORDWIDE | 0x02);
Write_SX2reg(SX2_EP6PKTLENL , 0x00);
Write_SX2reg(SX2_EP8PKTLENH , SX2_WORDWIDE | 0x02);
Write_SX2reg(SX2_EP8PKTLENL , 0x00);
}
else
{
/*工作在1.1标准,设定数字接口为16位，数据包的大小为64字节*/
Fifolong =0x20;
Write_SX2reg(SX2_EP2PKTLENH , SX2_WORDWIDE);
Write_SX2reg(SX2_EP2PKTLENL , 0x40);
Write_SX2reg(SX2_EP4PKTLENH , SX2_WORDWIDE);
Write_SX2reg(SX2_EP4PKTLENL , 0x40);
Write_SX2reg(SX2_EP6PKTLENH , SX2_WORDWIDE);
Write_SX2reg(SX2_EP6PKTLENL , 0x40);
Write_SX2reg(SX2_EP8PKTLENH , SX2_WORDWIDE);
Write_SX2reg(SX2_EP8PKTLENL , 0x40);
}
/*设置FLAGSA为FIFO6的空的标志位；
设置FLAGSB为FIFO8的空的标志位；
FLAGSC与FLAGSD的状态为默认的状态*/
Write_SX2reg(SX2_FLAGAB , SX2_FLAGA_FF6 | SX2_FLAGB_FF8);
/*清空所有的节点*/
Write_SX2reg(SX2_INPKTEND, SX2_CLEARALL);
Read_SX2reg(SX2_EP68FLAGS, &FifoStatus68);
/*自举后进行主程序的循环*/
while(sx2EnumOK)
{
/*CODEC CIRCLE运行*/
if(codec_runing == True)
{
if(codec_halt ==True)
{
codec_runing = False;
codec_halt = False;
}
else
{ /* Wait for sample from handset */
//while (!MCBSP_RRDY(CODEC_DATA)) {};
while(!MCBSP_rrdy(hMcbsp)){};
/* Read sample from and write back to handset codec */
//audiodata = *(volatile u16*)DRR1_ADDR(CODEC_DATA);
audiodata = MCBSP_read16(hMcbsp);
//*(volatile u16*)DXR1_ADDR(CODEC_DATA) = audiodata;
MCBSP_write16(hMcbsp,audiodata);
}
}/*CODEC CIRCLE运行*/
/*CODE 录音*/
if(codec_rev == True)
{
if(codec_halt ==True)
{
codec_rev = False;
codec_halt = False;
}
else
{
for(i = 0;i<Fifolong;i++)
{
/* Wait for sample from handset */
//while (!MCBSP_RRDY(CODEC_DATA)) {};
while(!MCBSP_rrdy(hMcbsp)){};
/* Read sample from and write back to handset codec */
//epdataw[i]= *(volatile u16*)DRR1_ADDR(CODEC_DATA);
epdataw[i]= MCBSP_read16(hMcbsp);
if(codec_back == True)
{
//*(volatile u16*)DXR1_ADDR(CODEC_DATA) = epdataw[i];
while(!MCBSP_xrdy(hMcbsp)) {};
MCBSP_write16(hMcbsp,epdataw[i]);
}
}
/*送给微机数据*/
SX2_FifoWrite(ENDPOINT6,&epdataw[0],Fifolong);
}
}/*CODE 录音*/
if(timer_status())
{
LedCount++;
if(LedCount & 0x1)
{
/*点亮LED*/
//asm(" SSBX XF");
asm(" BSET XF");
}
else
{
/*关掉LED*/
//asm(" RSBX XF");
asm(" BCLR XF");
}
}/*定时器的处理*/
/*慢速时的CODE 回放*/
if(codec_datok == True)
{
/* Wait for sample from handset */
//if(MCBSP_XRDY(CODEC_DATA))
if(MCBSP_xrdy(hMcbsp))
{
/* Read sample from and write back to handset codec */
//*(volatile u16*)DXR1_ADDR(CODEC_DATA) = codecdat[codec_count];
MCBSP_write16(hMcbsp,codecdat[codec_count]);
codec_count=codec_count + 1;
if(codec_count == 0x40)
{
codec_count = 0x0;
codec_datok = False;
}
}
}/*慢速时的CODE 回放*/
/*读FIFO状态*/
if(FLAGS_READ)
{
FLAGS_READ = False;
/*是音频传送*/
if(codec_play == True)
{
if(hshostlink !=True)
{
/*FIFO24状态的读取*/
if(Read_SX2reg(SX2_EP24FLAGS, &FifoStatus24))
{
/*确定是否有FIFO满*/
Fifostatus = FifoStatus24;
if(!(Fifostatus & SX2_EP2EF))
{
for(i = 0;i<Fifolong;i++)
{
codecdat[i] = SX2_FifoReadSingle(ENDPOINT2);
}
}
Fifostatus = FifoStatus24;
if(!(Fifostatus & SX2_EP4EF))
{
for(i = 0;i<Fifolong;i++)
{
codecdat[i+0x20] = SX2_FifoReadSingle(ENDPOINT4);
}
codec_datok = True;
}
}/*FIFO24状态的读*/
}
}/*是音频传送*/
else/*不是音频传送*/
{
/*FIFO24状态的读取*/
if(Read_SX2reg(SX2_EP24FLAGS, &FifoStatus24))
{
/*确定是否有FIFO满*/
Fifostatus = FifoStatus24;
if(!(Fifostatus & SX2_EP2EF))
{
RecievedDataLongth = Fifolong;
for(i = 0;i<Fifolong;i++)
{
epdatar[i] = SX2_FifoReadSingle(ENDPOINT2);
/*SX2_FifoWriteSingle(ENDPOINT6,epdatar[i]);*/
}
SX2_FifoWrite(ENDPOINT6,&epdatar[0],Fifolong);
/*小于整数据包的数据提交SX2发送给主机*/
if(RecievedDataLongth<(Fifolong-1))
{
Write_SX2reg(SX2_INPKTEND, 0x06);
}
}
Fifostatus = FifoStatus24;
if(!(Fifostatus & SX2_EP4EF))
{
i = 0;
while(!(Fifostatus & SX2_EP4EF))
{
epdatar[i] = SX2_FifoReadSingle(ENDPOINT4);
Read_SX2reg(SX2_EP24FLAGS, &Fifostatus);
RecievedDataLongth = i;
i = i +1;
}
SX2_FifoWrite(ENDPOINT8,&epdatar[0],Fifolong);
/*小于整数据包的数据提交SX2发送给主机*/
if(RecievedDataLongth<(Fifolong-1))
{
Write_SX2reg(SX2_INPKTEND, 0x08);
}
}
}/*FIFO24状态的读取*/
/*FIFO68状态的读取*/
if(Read_SX2reg(SX2_EP68FLAGS, &FifoStatus68))
{
/*无操作，可由用户测试使用*/
}
}/*不是音频传送*/
}/*读FIFO状态*/
/*关于setup中断的处理*/
if(sx2Setup)
{
/*清SETUP数据读的标志*/
sx2Setup = False;
/*解析OUT类型的命令申请*/
if(setupBuff[0] == VR_TYPE_OUT)
{
/*分析命令类型*/
switch(setupBuff[1])
{
/*系统复位*/
case VR_RESET:
/*写0到EP0的计数寄存器，结束本次控制握手*/
Write_SX2reg(SX2_EP0BC, 0);
break;
/*读命令*/
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