mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-11-19 18:40:17 +00:00
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
|
#include <AT91SAM7S64.h>
|
||
|
|
#include <interrupt-utils.h>
|
||
|
|
#include <usb-interrupt.h>
|
||
|
|
#include <usb-api.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_EP0 | AT91C_UDP_EP1 | AT91C_UDP_EP2
|
||
|
|
| AT91C_UDP_EP3)) {
|
||
|
|
unsigned int ep_index;
|
||
|
|
/* Handle enabled interrupts */
|
||
|
|
for (ep_index = 0; ep_index < 4; ep_index++) {
|
||
|
|
if (int_status & (1<<ep_index)) {
|
||
|
|
usb_arch_transfer_complete(ep_index);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (int_status & AT91C_UDP_ENDBUSRES) {
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_ENDBUSRES;
|
||
|
|
usb_arch_reset_int();
|
||
|
|
} else if (int_status & AT91C_UDP_RXSUSP) {
|
||
|
|
/* puts("Suspend"); */
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_RXSUSP;
|
||
|
|
usb_arch_suspend_int();
|
||
|
|
} else if (int_status & AT91C_UDP_RXRSM) {
|
||
|
|
/* puts("Resume"); */
|
||
|
|
*AT91C_UDP_ICR = AT91C_UDP_RXRSM;
|
||
|
|
usb_arch_resume_int();
|
||
|
|
} 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 {
|
||
|
|
puts("Other USB interrupt");
|
||
|
|
}
|
||
|
|
/* dbg_putchar('<'); */
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void NACKEDFUNC
|
||
|
|
usb_int (void)
|
||
|
|
{
|
||
|
|
ISR_STORE();
|
||
|
|
ISR_ENABLE_NEST();
|
||
|
|
usb_int_safe();
|
||
|
|
ISR_DISABLE_NEST();
|
||
|
|
*AT91C_AIC_EOICR = 0;
|
||
|
|
ISR_RESTORE();
|
||
|
|
}
|