void IsrDma2(void)
{
U8 out_csr3;
U32 dwEmptyCnt;
U8 saveIndexReg=usbdevregs->INDEX_REG;
usbdevregs->INDEX_REG=3;
out_csr3=usbdevregs->OUT_CSR1_REG;
ClearPending_my(BIT_DMA2);
/* thisway.diy, 2006.06.22
* When the first DMA interrupt happened, it has received max (0x80000 + EP3_PKT_SIZE) bytes data from PC
*/
if (!totalDmaCount)
totalDmaCount = dwWillDMACnt + EP3_PKT_SIZE;
else
totalDmaCount+=dwWillDMACnt;
// dwUSBBufWritePtr = ((dwUSBBufWritePtr + dwWillDMACnt - USB_BUF_BASE) % USB_BUF_SIZE) + USB_BUF_BASE; /* thisway.diy, 2006.06.21 */
dwUSBBufWritePtr = ((dwUSBBufWritePtr + dwWillDMACnt - dwUSBBufBase) % dwUSBBufSize) + dwUSBBufBase;
if(totalDmaCount>=downloadFileSize)// is last?
{
totalDmaCount=downloadFileSize;
ConfigEp3IntMode();
if(out_csr3& EPO_OUT_PKT_READY)
{
CLR_EP3_OUT_PKT_READY();
}
intregs->INTMSK|=BIT_DMA2;
intregs->INTMSK&=~(BIT_USBD);
}
else
{
if((totalDmaCount+0x80000)<downloadFileSize)
{
dwWillDMACnt = 0x80000;
}
else
{
dwWillDMACnt = downloadFileSize - totalDmaCount;
}
// dwEmptyCnt = (dwUSBBufReadPtr - dwUSBBufWritePtr - 1 + USB_BUF_SIZE) % USB_BUF_SIZE; /* thisway.diy, 2006.06.21 */
dwEmptyCnt = (dwUSBBufReadPtr - dwUSBBufWritePtr - 1 + dwUSBBufSize) % dwUSBBufSize;
if (dwEmptyCnt >= dwWillDMACnt)
{
ConfigEp3DmaMode(dwUSBBufWritePtr, dwWillDMACnt);
}
else
{
bDMAPending = 1;
}
}
usbdevregs->INDEX_REG = saveIndexReg;
}
void IsrDma2()
{
struct s3c24x0_interrupt *intregs = s3c24x0_get_base_interrupt();
struct s3c24x0_usb_device *usbdevregs = s3c24x0_get_base_usb_device();
U8 out_csr3;
U32 dwEmptyCnt;
U8 saveIndexReg = usbdevregs->INDEX_REG;
usbdevregs->INDEX_REG = 3;
out_csr3 = usbdevregs->OUT_CSR1_REG;
ClearPending_my((int)BIT_DMA2);
if (!totalDmaCount)
totalDmaCount = dwWillDMACnt + EP3_PKT_SIZE;
else
totalDmaCount += dwWillDMACnt;
dwUSBBufWritePtr = ((dwUSBBufWritePtr + dwWillDMACnt - dwUSBBufBase) %
dwUSBBufSize) + dwUSBBufBase;
if (totalDmaCount >= downloadFileSize) { /* last */
totalDmaCount = downloadFileSize;
ConfigEp3IntMode();
if (out_csr3 & EPO_OUT_PKT_READY)
CLR_EP3_OUT_PKT_READY();
/* 关闭DMA2中断并重新开启USBD中断 */
intregs->INTMSK |= BIT_DMA2;
intregs->INTMSK &= ~(BIT_USBD);
} else {
if ((totalDmaCount + 0x80000) < downloadFileSize)
dwWillDMACnt = 0x80000;
else
dwWillDMACnt = downloadFileSize - totalDmaCount;
dwEmptyCnt = (dwUSBBufReadPtr - dwUSBBufWritePtr - 1 + dwUSBBufSize) %
dwUSBBufSize;
if (dwEmptyCnt >= dwWillDMACnt)
ConfigEp3DmaMode(dwUSBBufWritePtr, dwWillDMACnt);
}
usbdevregs->INDEX_REG = saveIndexReg;
}
__u32 usb_receive(char *buf, size_t len, U32 wait)
{
int first=1;
U8 tempMem[16];
U32 j;
unsigned int dwRecvTimeSec = 0;
char c;
struct s3c24x0_interrupt * intregs = s3c24x0_get_base_interrupt();
dwUSBBufReadPtr = dwUSBBufBase; // USB_BUF_BASE; thiswa.diy, 2006.06.21
dwUSBBufWritePtr = dwUSBBufBase; // USB_BUF_BASE; thiswa.diy, 2006.06.21
bDMAPending = 0;
/* add by thisway.diy */
tempDownloadAddress = dwUSBBufBase; // USB_BUF_BASE; thiswa.diy, 2006.06.21 // RAM_BASE, changed by thisway.diy for wince, 2006.06.18
downloadAddress=(U32)tempMem; //_RAM_STARTADDRESS;
downPt=(unsigned char *)downloadAddress;
//This address is used for receiving first 8 byte.
downloadFileSize=0;
/*******************************/
/* File download */
/*******************************/
if(isUsbdSetConfiguration==0)
{
printf("USB host is not connected yet.\n");
}
while(downloadFileSize==0) /* wait until send a file */
{
if(first==1 && isUsbdSetConfiguration!=0)
{
printf("USB host is connected. Waiting a download.\n");
first=0;
}
c = awaitkey(1, 0);
if ((c & 0x7f) == INTR)
{
printf("Cancelled by user\n");
return 0;
}
}
printf("get downloadFileSize = %d !!\n",downloadFileSize);
/* add by thisway.diy */
if (downloadFileSize - 10 > len)
{
printf("Length of file is too big : %d > %d\n", downloadFileSize - 10, len);
return 0;
}
Timer_InitEx();
Timer_StartEx();
#if USBDMA
writel((readl(&intregs->intmsk) & ~(BIT_DMA2)), &intregs->intmsk);
// intregs->INTMSK&=~(BIT_DMA2);
ClearEp3OutPktReady();
// indicate the first packit is processed.
// has been delayed for DMA2 cofiguration.
if(downloadFileSize>EP3_PKT_SIZE)
{
if(downloadFileSize - EP3_PKT_SIZE<=(0x80000))
{
/* set the source and length */
dwUSBBufWritePtr = downloadAddress + EP3_PKT_SIZE-8;
dwWillDMACnt = downloadFileSize - EP3_PKT_SIZE;
}
else
{
dwUSBBufWritePtr = downloadAddress + EP3_PKT_SIZE - 8;
// dwWillDMACnt = 0x80000 - EP3_PKT_SIZE;
/* Changed by thisway.diy, 2006.06.22
* We want When the first DMA interrupt happened,
* it has received (0x80000 + 8) bytes data from PC
* The format of data PC send out is: <ADDR(DATA):4>+<SIZE(n+10):4>+<DATA:n>+<CS:2>
* So, the first 8 bytes isn't the real data we want
* We want the dwUSBBufWritePtr is always 0x80000 aligin
*/
dwWillDMACnt = 0x80000 + 8 - EP3_PKT_SIZE;
}
totalDmaCount = 0;
ConfigEp3DmaMode(dwUSBBufWritePtr, dwWillDMACnt);
}
else
{
dwUSBBufWritePtr = downloadAddress + downloadFileSize - 8;
totalDmaCount = downloadFileSize;
}
#endif
printf("\nNow, Downloading [ADDRESS:%xh,TOTAL:%d]\n",
downloadAddress,downloadFileSize);
if (wait)
{
printf("RECEIVED FILE SIZE:%8d",0);
j = totalDmaCount + 0x10000;
while (totalDmaCount != downloadFileSize)
{
if (totalDmaCount > j)
{
printf("\b\b\b\b\b\b\b\b%8d", j);
j = totalDmaCount + 0x10000;
}
}
printf("\b\b\b\b\b\b\b\b%8d ", totalDmaCount);
dwRecvTimeSec = Timer_StopEx();
if (dwRecvTimeSec == 0)
{
dwRecvTimeSec = 1;
}
printf("(%dKB/S, %dS)\n", (downloadFileSize/dwRecvTimeSec/1024), dwRecvTimeSec);
}
return downloadFileSize - 10;
}
