xboo-backdoor.h

#ifndef __XBOO_BACKDOOR
#define __XBOO_BACKDOOR

#ifdef __cplusplus
extern "C" {
#endif

// Set up GBA SIO into the correct modes, optionally enabling Serial Interrupts and the ISR.
void xboo_backdoor_init(bool enable_sio_irq, bool set_isr_ptr);

// Can act as a drop-in SIO IRQ handler, returns if not a valid Xboo request.
void xboo_backdoor_sio_irq_handler();

// Runs in an IRQ handler, checking if SIODATA32 contains BRST, returning if not.
void xboo_backdoor_check_siodata32(bool set_start_bit);

// Busy-waits for an Xboo Burst Boot Backdoor request.
//
// Will not return.
void _xboo_backdoor_listen();

// Call this if you just received a "BRST" packet _and_ also replied to it with "BOOT",
// skipping right to length transfer (but only on first attempt).
void _xboo_backdoor_skip_brst();

#ifdef __cplusplus
}
#endif

#endif /* __XBOO_BACKDOOR */