int Egis_BulkXfer(
usb_ss801u *dev,
trans_dir dir,
void* Data,
int DataSize,
int* pActualSize,
int Timeout
)
{
int retval = -1;
int iActualRWSize;
bool bRestore=false;
//Wayne for test
// dev->bPrintDbgMsg = true;
// pr_debug("%s:%d bulk In endpoint = %d Out endpoint = %d\n", __FUNCTION__, __LINE__, dev->bulk_in_endpointAddr, dev->bulk_out_endpointAddr);
if (!dev->udev)
{
pr_debug("dev->udev = NULL\n");
}
else
{
pr_debug("dev->udev->state = %d dev->udev->speed = %d\n", dev->udev->state, dev->udev->speed);
}
// for (i = 0; i < DataSize; i++)
// {
// pr_debug("%2x ", (u8)Data[i]);
// }
// pr_debug("\n");
mutex_lock(&dev->Bulk_Mutex);
//----- if EPROTO happens, we will call clear feature and re-send again
do{
EgisMsg(dev->bPrintDbgMsg, KERN_ERR,"Do usb_bulk_msg\n");
retval = usb_bulk_msg(
dev->udev,
(dir_in == dir) ?
usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr) :
usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr),
Data,
DataSize,
&iActualRWSize,
Timeout
);
// show data
// EgisMsg(dev->bPrintDbgMsg, KERN_ERR,"following are data block of bulk transfer:\r\n");
// int iLoopIndex = 0;
// unsigned char *pData = Data;
// for(iLoopIndex = 0; iLoopIndex<DataSize; iLoopIndex++)
// {
// EgisMsg(dev->bPrintDbgMsg, KERN_ERR,"%2x", pData[iLoopIndex]);
// }
// EgisMsg(dev->bPrintDbgMsg, KERN_ERR,"\r\ndata block finish\r\n");
if(EGIS_FAIL(retval)){
//----- if error == EPROTO && not be restored --> clear halt
if(EOVERFLOW == retval)
{
EgisMsg(dev->bPrintDbgMsg, KERN_ERR,"=Egis_BulkXfer= bulk transfer error, EOVERFLOW, data size = %d"
, DataSize);
}
if(EPROTO == retval && !bRestore){
EgisMsg(dev->bPrintDbgMsg, KERN_ERR, "=Egis_BulkXfer= bulk xfer fail clear feature\r\n");
retval = usb_clear_halt(dev->udev, (dir_in == dir) ?
usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr) :
usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr)
);
bRestore = true;
}
//----- this if include "else" above and check clear halt fail
if(EGIS_FAIL(retval)){
EgisMsg(dev->bPrintDbgMsg, KERN_ERR, "=Egis_BulkXfer= bulk xfer fail %d\r\n", retval);
break;
}
}
else{
//----- if xfer is success, set bRestore=false to leave while loop
bRestore = false;
}
}while(EGIS_SUCCESS(retval) && bRestore);
memcpy(pActualSize, &iActualRWSize, sizeof(int));
EgisMsg(dev->bPrintDbgMsg, KERN_ERR, "=Egis_BulkXfer= bulk xfer actual data size: %d\r\n", iActualRWSize);
mutex_unlock(&dev->Bulk_Mutex);
//----- If xfer fails, reset device.
if(EGIS_FAIL(retval)){
Egis_Reset_device(dev);
}
//Wayne for test
dev->bPrintDbgMsg = false;
return retval;
}
int AlphaTec_SwitchIOPwrOff(usb_ss801u *dev)
{
int retval = 0;
int buf_size = 512;
unsigned char *buffer = kzalloc(buf_size, GFP_KERNEL);
/* _____ 0x300 */
retval = Read_Write_Register(dev, 0xD2, 0x13, 0x03, 0x00, 0x00, 0x01, buffer, buf_size);
buffer[0] &= 0xBF;
if (EGIS_SUCCESS(retval))
retval = Read_Write_Register(dev, 0xDA, 0x23, 0x03, 0x00, 0x00, 0x01, buffer, buf_size);
/* ____ 0x301 */
if (EGIS_SUCCESS(retval)) {
retval = Read_Write_Register(dev, 0xD2, 0x13, 0x03, 0x01, 0x00, 0x01, buffer, buf_size);
buffer[0] &= 0xFB;
if (EGIS_SUCCESS(retval))
retval = Read_Write_Register(dev, 0xDA, 0x23, 0x03, 0x01, 0x00, 0x01, buffer, buf_size);
}
/* ____ 0x0302 Off Bit5 to 0 */
if (EGIS_SUCCESS(retval)) {
retval = Read_Write_Register(dev, 0xD2, 0x13, 0x03, 0x02, 0x00, 0x01, buffer, buf_size);
buffer[0] &= 0xDF;
if (EGIS_SUCCESS(retval))
retval = Read_Write_Register(dev, 0xDA, 0x23, 0x03, 0x02, 0x00, 0x01, buffer, buf_size);
}
/* ____ 0x30c ~0x30f */
if (EGIS_SUCCESS(retval)) {
buffer[0] = 0x0;
buffer[1] = 0x0;
buffer[2] = 0x0;
buffer[3] = 0x0;
retval = Read_Write_Register(dev, 0xDA, 0x23, 0x03, 0x0C, 0x00, 0x04, buffer, buf_size);
}
/* ____ 0x310 ~ 0x313 */
if (EGIS_SUCCESS(retval)) {
buffer[0] = 0xFF;
buffer[1] = 0xFF;
buffer[2] = 0xFF;
buffer[3] = 0xFF;
retval = Read_Write_Register(dev, 0xDA, 0x23, 0x03, 0x10, 0x00, 0x04, buffer, buf_size);
}
/* ____ 0x80 */
if (EGIS_SUCCESS(retval)) {
buffer[0] = 0xFF;
retval = Read_Write_Register(dev, 0xDA, 0x2A, 0x00, 0x80, 0x00, 0x01, buffer, buf_size);
}
/* ____ 0x90 */
if (EGIS_SUCCESS(retval)) {
buffer[0] = 0xFF;
retval = Read_Write_Register(dev, 0xDA, 0x2A, 0x00, 0x90, 0x00, 0x01, buffer, buf_size);
}
/* ____ 0xA0 */
if (EGIS_SUCCESS(retval)) {
buffer[0] = 0xFF;
retval = Read_Write_Register(dev, 0xDA, 0x2A, 0x00, 0xA0, 0x00, 0x01, buffer, buf_size);
}
/* ____ 0xB0 */
if (EGIS_SUCCESS(retval)) {
buffer[0] = 0xFF;
retval = Read_Write_Register(dev, 0xDA, 0x2A, 0x00, 0xB0, 0x00, 0x01, buffer, buf_size);
}
kfree(buffer);
return retval;
}