53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
|
#include <AT91SAM7S64.h>
|
||
|
|
#include <interrupt-utils.h>
|
||
|
|
#include <usb-interrupt.h>
|
||
|
|
#include <usb-proto.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
static void
|
||
|
|
usb_int_safe (void) __attribute__((noinline));
|
||
|
|
|
||
|
|
static void
|
||
|
|
usb_int_safe (void)
|
||
|
|
{
|
||
|
|
unsigned int int_status;
|
||
|
|
/* putchar('*'); */
|
||
|
|
int_status = *AT91C_UDP_ISR & *AT91C_UDP_IMR;
|
||
|
|
|
||
|
|
if (int_status & (AT91C_UDP_EP1 | AT91C_UDP_EP2 | AT91C_UDP_EP3)) {
|
||
|
|
usb_epx_int();
|
||
|
|
} else if (int_status & AT91C_UDP_ENDBUSRES) {
|
||
|
|
usb_reset();
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_ENDBUSRES;
|
||
|
|
} else if (int_status & AT91C_UDP_RXSUSP) {
|
||
|
|
/* puts("Suspend"); */
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_RXSUSP;
|
||
|
|
} else if (int_status & AT91C_UDP_RXRSM) {
|
||
|
|
/* puts("Resume"); */
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_RXRSM;
|
||
|
|
} else if (int_status & AT91C_UDP_SOFINT) {
|
||
|
|
/* puts("SOF"); */
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_SOFINT;
|
||
|
|
} else if (int_status & AT91C_UDP_WAKEUP) {
|
||
|
|
/* puts("Wakeup"); */
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_WAKEUP;
|
||
|
|
} else if (int_status & AT91C_UDP_EP0) {
|
||
|
|
usb_ep0_int();
|
||
|
|
} else {
|
||
|
|
puts("Other USB interrupt");
|
||
|
|
}
|
||
|
|
/* putchar('<'); */
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void NACKEDFUNC
|
||
|
|
usb_int (void)
|
||
|
|
{
|
||
|
|
ISR_STORE();
|
||
|
|
ISR_ENABLE_NEST();
|
||
|
|
usb_int_safe();
|
||
|
|
ISR_DISABLE_NEST();
|
||
|
|
*AT91C_AIC_EOICR = 0;
|
||
|
|
ISR_RESTORE();
|
||
|
|
}
|