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/* *****************************************************************************
* The MIT License
*
* Copyright (c) 2010 Andrew Meyer.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* ****************************************************************************/
#include "libmaple.h"
#include "usb.h"
#include "usb_regs.h"
#include "bootVect.h"
void usb_lpIRQHandler(void)
{
typedef void (*funcPtr)(void);
const uint32 usbIsrAddr = *(uint32*)(USB_ISR_ADDR);
void (*ptrToUsbISR)(void) = (funcPtr) usbIsrAddr;
ptrToUsbISR();
}
void usb_userToPMABufferCopy(uint8 *pbUsrBuf, uint16 wPMABufAddr, uint16 wNBytes)
{
uint32 n = (wNBytes + 1) >> 1; /* n = (wNBytes + 1) / 2 */
uint32 i, temp1, temp2;
uint16 *pdwVal;
pdwVal = (uint16 *)(wPMABufAddr * 2 + PMAAddr);
for (i = n; i != 0; i--)
{
temp1 = (uint16) * pbUsrBuf;
pbUsrBuf++;
temp2 = temp1 | (uint16) * pbUsrBuf << 8;
*pdwVal++ = temp2;
pdwVal++;
pbUsrBuf++;
}
}
void usb_PMAToUserBufferCopy(uint8 *pbUsrBuf, uint16 wPMABufAddr, uint16 wNBytes)
{
uint32 n = (wNBytes + 1) >> 1;/* /2*/
uint32 i;
uint32 *pdwVal;
pdwVal = (uint32 *)(wPMABufAddr * 2 + PMAAddr);
for (i = n; i != 0; i--)
{
*(uint16*)pbUsrBuf++ = *pdwVal++;
pbUsrBuf++;
}
}
void usb_serialWriteStr(const char* outStr) {
uint8 offset=0;
BootVectTable *bootVector = ((BootVectTable*)BOOTLOADER_VECT_TABLE);
while ((outStr[offset] != '\0')
&& (offset < USB_SERIAL_BUF_SIZE)) {
offset++;
}
delay(offset*1);
bootVector->serial_count_in = (uint32*) &offset;
usb_userToPMABufferCopy((uint8*)outStr,USB_SERIAL_ENDP_TXADDR,offset);
_SetEPTxCount(USB_SERIAL_ENDP_TX,offset);
_SetEPTxValid(USB_SERIAL_ENDP_TX);
}
void usb_serialWriteChar(unsigned char ch) {
BootVectTable *bootVector = ((BootVectTable*)BOOTLOADER_VECT_TABLE);
delay(1);
*(bootVector->serial_count_in) = 1;
usb_userToPMABufferCopy((uint8*)(&ch),USB_SERIAL_ENDP_TXADDR,1);
_SetEPTxCount(USB_SERIAL_ENDP_TX,1);
_SetEPTxValid(USB_SERIAL_ENDP_TX);
}
uint8 usb_serialGetRecvLen() {
uint8 count_out =_GetEPRxCount(USB_SERIAL_ENDP_RX);
return count_out;
}
void usb_copyRecvBuffer(unsigned char* dest, uint8 len) {
ASSERT(len < USB_SERIAL_BUF_SIZE);
usb_PMAToUserBufferCopy((uint8*)(dest),USB_SERIAL_ENDP_RXADDR,len);
_SetEPRxValid(USB_SERIAL_ENDP_RX);
}
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