#ifndef GLOBAL_H
#define GLOBAL_H

// board type, raspi2
#define RASPI 2

// conditionally #define PERIF_BASE
#if RASPI == 4

#define PERIF_BASE 0xFE000000

#elif RASPI == 3 || RASPI == 2

#define PERIF_BASE 0x3F000000

#else // if RASPI == 1

#define PERIF_BASE 0x20000000

#endif

// GPIO_BASE is #define'd in terms of PERIF_BASE
// (as in sane kernels - like linux, not like in wiki.osdev codes...)
#define GPIO_BASE (PERIF_BASE + 0x200000)

// ARM control block
// called "base address for the ARM interrupt register" elsewhere
#define ARM_BASE (PERIF_BASE + 0xB000)

#define ARM_IRQ_BASIC_PENDING  (ARM_BASE + 0x200)
#define ARM_IRQ_PENDING_1      (ARM_BASE + 0x204)
#define ARM_IRQ_PENDING_2      (ARM_BASE + 0x208)
#define ARM_FIQ_CONTROL        (ARM_BASE + 0x20C)
#define ARM_ENABLE_IRQS_1      (ARM_BASE + 0x210)
#define ARM_ENABLE_IRQS_2      (ARM_BASE + 0x214)
#define ARM_ENABLE_BASIC_IRQS  (ARM_BASE + 0x218)
#define ARM_DISABLE_IRQS_1     (ARM_BASE + 0x21C)
#define ARM_DISABLE_IRQS_2     (ARM_BASE + 0x220)
#define ARM_DISABLE_BASIC_IRQS (ARM_BASE + 0x224)

#endif // GLOBAL_H