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Moved and updated code for AT91SAM7S

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This commit is contained in:
ksb 2009-07-11 14:22:45 +00:00
parent 1658d6b42c
commit 1f72d3ea32
32 changed files with 9799 additions and 0 deletions
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59
cpu/arm/at91sam7s/usb-interrupt.c Normal file
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#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();
}