uint32_t USBD_ReadEP (uint32_t EPNum, uint8_t *pData) {
uint32_t cnt = 0;
uint32_t i;
/* Setup packet */
if ((LPC_USBx->ENDPTSETUPSTAT & 1) && (!EPNum)) {
LPC_USBx->ENDPTSETUPSTAT = 1;
while (LPC_USBx->ENDPTSETUPSTAT & 1);
do {
*((__packed uint32_t*) pData) = EPQHx[EP_OUT_IDX(0)].setup[0];
*((__packed uint32_t*)(pData + 4)) = EPQHx[EP_OUT_IDX(0)].setup[1];
cnt = 8;
LPC_USBx->USBCMD_D |= (1UL << 13);
} while (!(LPC_USBx->USBCMD_D & (1UL << 13)));
LPC_USBx->USBCMD_D &= (~(1UL << 13));
LPC_USBx->ENDPTFLUSH = (1UL << EPNum) | (1UL << (EPNum + 16));
while (LPC_USBx->ENDPTFLUSH & ((1UL << (EPNum + 16)) | (1UL << EPNum)));
while (LPC_USBx->ENDPTSETUPSTAT & 1);
USBD_PrimeEp(EPNum, Ep[EP_OUT_IDX(EPNum)].maxPacket);
}
/* OUT Packet */
else {
if (Ep[EP_OUT_IDX(EPNum)].buf) {
cnt = Ep[EP_OUT_IDX(EPNum)].maxPacket -
((dTDx[EP_OUT_IDX(EPNum)].dTD_token >> 16) & 0x7FFF);
for (i = 0; i < cnt; i++) {
pData[i] = Ep[EP_OUT_IDX(EPNum)].buf[i];
}
}
LPC_USBx->ENDPTCOMPLETE = (1UL << EPNum);
cmpl_pnd &= ~(1UL << EPNum);
USBD_PrimeEp(EPNum, Ep[EP_OUT_IDX(EPNum)].maxPacket);
}
void USBD_ResetEP (uint32_t EPNum) {
if (EPNum & 0x80) {
EPNum &= 0x7F;
EPQHx[EP_IN_IDX(EPNum)].dTD_token &= 0xC0;
LPC_USBx->ENDPTFLUSH = (1UL << (EPNum + 16)); /* flush endpoint */
while (LPC_USBx->ENDPTFLUSH & (1UL << (EPNum + 16)));
ENDPTCTRL(EPNum) |= (1UL << 22); /* data toggle reset */
}
else {
EPQHx[EP_OUT_IDX(EPNum)].dTD_token &= 0xC0;
LPC_USBx->ENDPTFLUSH = (1UL << EPNum); /* flush endpoint */
while (LPC_USBx->ENDPTFLUSH & (1UL << EPNum));
ENDPTCTRL(EPNum) |= (1UL << 6 ); /* data toggle reset */
USBD_PrimeEp(EPNum, Ep[EP_OUT_IDX(EPNum)].maxPacket);
}
}
void USBD_Reset(void)
{
uint32_t i;
uint8_t *ptr;
cmpl_pnd = 0;
for (i = 1; i < USBD_EP_NUM + 1; i++) {
ENDPTCTRL(i) &= ~((1UL << 7) | (1UL << 23));
}
/* clear interrupts */
LPC_USBx->ENDPTNAK = 0xFFFFFFFF;
LPC_USBx->ENDPTNAKEN = 0;
LPC_USBx->USBSTS_D = 0xFFFFFFFF;
LPC_USBx->ENDPTSETUPSTAT = LPC_USBx->ENDPTSETUPSTAT;
LPC_USBx->ENDPTCOMPLETE = LPC_USBx->ENDPTCOMPLETE;
while (LPC_USBx->ENDPTPRIME);
LPC_USBx->ENDPTFLUSH = 0xFFFFFFFF;
while (LPC_USBx->ENDPTFLUSH);
LPC_USBx->USBCMD_D &= ~0x00FF0000; /* immediate intrrupt treshold */
/* clear endpoint queue heads */
ptr = (uint8_t *)EPQHx;
for (i = 0; i < sizeof(EPQHx); i++) {
ptr[i] = 0;
}
/* clear endpoint transfer descriptors */
ptr = (uint8_t *)dTDx;
for (i = 0; i < sizeof(dTDx); i++) {
ptr[i] = 0;
}
Ep[EP_OUT_IDX(0)].maxPacket = USBD_MAX_PACKET0;
Ep[EP_OUT_IDX(0)].buf = EPBufPool;
BufUsed = USBD_MAX_PACKET0;
Ep[EP_IN_IDX(0)].maxPacket = USBD_MAX_PACKET0;
Ep[EP_IN_IDX(0)].buf = &(EPBufPool[BufUsed]);
BufUsed += USBD_MAX_PACKET0;
dTDx[EP_OUT_IDX(0)].next_dTD = 1;
dTDx[EP_IN_IDX(0)].next_dTD = 1;
dTDx[EP_OUT_IDX(0)].dTD_token = (USBD_MAX_PACKET0 << 16) | /* total bytes */
(1UL << 15); /* int on compl */
dTDx[EP_IN_IDX(0)].dTD_token = (USBD_MAX_PACKET0 << 16) | /* total bytes */
(1UL << 15); /* int on compl */
EPQHx[EP_OUT_IDX(0)].next_dTD = (uint32_t) &dTDx[EP_OUT_IDX(0)];
EPQHx[EP_IN_IDX(0)].next_dTD = (uint32_t) &dTDx[EP_IN_IDX(0)];
EPQHx[EP_OUT_IDX(0)].cap = ((USBD_MAX_PACKET0 & 0x0EFF) << 16) |
(1UL << 29) |
(1UL << 15); /* int on setup */
EPQHx[EP_IN_IDX(0)].cap = (USBD_MAX_PACKET0 << 16) |
(1UL << 29) |
(1UL << 15); /* int on setup */
LPC_USBx->ENDPOINTLISTADDR = (uint32_t)EPQHx;
LPC_USBx->USBMODE_D |= (1UL << 3); /* Setup lockouts off */
LPC_USBx->ENDPTCTRL0 = 0x00C000C0;
USBD_PrimeEp(0, Ep[EP_OUT_IDX(0)].maxPacket);
}