void cpld_update(void)
{
#define WAIT_LOOP_DELAY (6000000)
#define ALL_LEDS (PIN_LED1|PIN_LED2|PIN_LED3)
int i;
int error;
usb_queue_flush_endpoint(&usb_endpoint_bulk_in);
usb_queue_flush_endpoint(&usb_endpoint_bulk_out);
refill_cpld_buffer();
error = cpld_jtag_program(sizeof(cpld_xsvf_buffer),
cpld_xsvf_buffer,
refill_cpld_buffer);
if(error == 0)
{
/* blink LED1, LED2, and LED3 on success */
while (1)
{
gpio_set(PORT_LED1_3, ALL_LEDS); /* LEDs on */
for (i = 0; i < WAIT_LOOP_DELAY; i++) /* Wait a bit. */
__asm__("nop");
gpio_clear(PORT_LED1_3, ALL_LEDS); /* LEDs off */
for (i = 0; i < WAIT_LOOP_DELAY; i++) /* Wait a bit. */
__asm__("nop");
}
}else
{
/* LED3 (Red) steady on error */
gpio_set(PORT_LED1_3, PIN_LED3); /* LEDs on */
while (1);
}
}
void usb_endpoint_flush(
const usb_endpoint_t* const endpoint
) {
const uint_fast8_t endpoint_number = usb_endpoint_number(endpoint->address);
usb_queue_flush_endpoint(endpoint);
if( usb_endpoint_is_in(endpoint->address) ) {
usb_flush_primed_endpoints(USB0_ENDPTFLUSH_FETB(1 << endpoint_number));
} else {
usb_flush_primed_endpoints(USB0_ENDPTFLUSH_FERB(1 << endpoint_number));
}
}
void usb_endpoint_disable(
const usb_endpoint_t* const endpoint
) {
const uint_fast8_t endpoint_number = usb_endpoint_number(endpoint->address);
if( usb_endpoint_is_in(endpoint->address) ) {
USB0_ENDPTCTRL(endpoint_number) &= ~(USB0_ENDPTCTRL_TXE);
} else {
USB0_ENDPTCTRL(endpoint_number) &= ~(USB0_ENDPTCTRL_RXE);
}
usb_queue_flush_endpoint(endpoint);
usb_endpoint_clear_pending_interrupts(endpoint);
usb_endpoint_flush(endpoint);
}
