#ifndef _ULTRA64_HARDWARE_H_
#define _ULTRA64_HARDWARE_H_

// Segment Wrapper
// Uncached RDRAM
#define KSEG1 0xA0000000 // 0xA0000000 - 0xBFFFFFFF  Physical memory, uncached, unmapped
#define RDRAM_UNCACHED KSEG1

// Cached RDRAM
#define KSEG0 0x80000000 // 0x80000000 - 0x9FFFFFFF  Physical memory, cached, unmapped
#define RDRAM_CACHED KSEG0

// Volatile access wrapper, enforcing uncached memory
#define HW_REG(reg, type) *(volatile type*)((reg) | KSEG1)

#define AI_DRAM_ADDR_REG   0x04500000
#define AI_LEN_REG         0x04500004
#define AI_CONTROL_REG     0x04500008
#define AI_STATUS_REG      0x0450000C
#define AI_DACRATE_REG     0x04500010
#define AI_BITRATE_REG     0x04500014

#define AI_STATUS_AI_BUSY  (1 << 30)
#define AI_STATUS_AI_FULL  (1 << 31)

#define VI_STATUS_REG          0x04400000
#define VI_CONTROL_REG         0x04400000
#define VI_ORIGIN_REG          0x04400004
#define VI_DRAM_ADDR_REG       0x04400004
#define VI_WIDTH_REG           0x04400008
#define VI_H_WIDTH_REG         0x04400008
#define VI_INTR_REG            0x0440000C
#define VI_V_INTER_REG         0x0440000C
#define VI_CURRENT_REG         0x04400010
#define VI_V_CURRENT_LINE_REG  0x04400010
#define VI_BURST_REG           0x04400014
#define VI_TIMING_REG          0x04400014
#define VI_V_SYNC_REG          0x04400018 //VI vertical sync
#define VI_H_SYNC_REG          0x0440001C //VI horizontal sync
#define VI_LEAP_REG            0x04400020 //VI horizontal sync leap
#define VI_H_SYNC_LEAP_REG     0x04400020
#define VI_H_START_REG         0x04400024 //VI horizontal video
#define VI_H_VIDEO_REG         0x04400024
#define VI_V_START_REG         0x04400028 //VI vertical video
#define VI_V_VIDEO_REG         0x04400028
#define VI_V_BURST_REG         0x0440002C //VI vertical burst
#define VI_X_SCALE_REG         0x04400030 //VI x-scale
#define VI_Y_SCALE_REG         0x04400034 //VI y-scale

#define SP_IMEM_START  0x04001000
#define SP_IMEM_SIZE   0x1000

#define SP_DMEM_START  0x04000000
#define SP_DMEM_SIZE   0x1000

#define TMEM_SIZE 0x1000

#define SP_MEM_ADDR_REG   0x04040000
#define SP_DRAM_ADDR_REG  0x04040004
#define SP_RD_LEN_REG     0x04040008
#define SP_WR_LEN_REG     0x0404000C
#define SP_STATUS_REG     0x04040010
#define SP_DMA_FULL_REG   0x04040014
#define SP_DMA_BUSY_REG   0x04040018
#define SP_PC_REG         0x04080000

#define PI_DRAM_ADDR_REG     0x04600000 //PI DRAM address
#define PI_CART_ADDR_REG     0x04600004 //PI pbus (cartridge) address
#define PI_RD_LEN_REG        0x04600008 //PI read length
#define PI_WR_LEN_REG        0x0460000C //PI write length
#define PI_STATUS_REG        0x04600010 //PI status
#define PI_BSD_DOM1_LAT_REG  0x04600014 //PI dom1 latency
#define PI_DOMAIN1_REG       0x04600014
#define PI_BSD_DOM1_PWD_REG  0x04600018 //PI dom1 pulse width
#define PI_BSD_DOM1_PGS_REG  0x0460001C //PI dom1 page size
#define PI_BSD_DOM1_RLS_REG  0x04600020 //PI dom1 release
#define PI_BSD_DOM2_LAT_REG  0x04600024 //PI dom2 latency
#define PI_DOMAIN2_REG       0x04600024
#define PI_BSD_DOM2_PWD_REG  0x04600028 //PI dom2 pulse width
#define PI_BSD_DOM2_PGS_REG  0x0460002C //PI dom2 page size
#define PI_BSD_DOM2_RLS_REG  0x04600030 //PI dom2 release

#define PI_STATUS_BUSY    (1 << 0)
#define PI_STATUS_IOBUSY  (1 << 1)
#define PI_STATUS_ERROR   (1 << 2)

#define PI_STATUS_RESET_CONTROLLER  (1 << 0)
#define PI_STATUS_CLEAR_INTR        (1 << 1)

#define SI_DRAM_ADDR_REG       0x04800000
#define SI_PIF_ADDR_RD64B_REG  0x04800004
#define SI_PIF_ADDR_WR64B_REG  0x04800010
#define SI_STATUS_REG          0x04800018

#define SI_STATUS_DMA_BUSY      (1 << 0)
#define SI_STATUS_IO_READ_BUSY  (1 << 1)
#define SI_STATUS_DMA_ERROR     (1 << 3)
#define SI_STATUS_INTERRUPT     (1 << 12)

#define PIF_RAM_START  0x1FC007C0
#define PIF_RAM_SIZE   0x40

#define MI_INIT_MODE_REG  0x04300000
#define MI_MODE_REG       MI_INIT_MODE_REG
#define MI_VERSION_REG    0x04300004
#define MI_INTR_REG       0x04300008
#define MI_INTR_MASK_REG  0x0430000C

/* Interrupt pending bits */
#define	CAUSE_IP8  0x00008000  /* External level 8 pending - COMPARE */
#define	CAUSE_IP7  0x00004000  /* External level 7 pending - INT4 */
#define	CAUSE_IP6  0x00002000  /* External level 6 pending - INT3 */
#define	CAUSE_IP5  0x00001000  /* External level 5 pending - INT2 */
#define	CAUSE_IP4  0x00000800  /* External level 4 pending - INT1 */
#define	CAUSE_IP3  0x00000400  /* External level 3 pending - INT0 */
#define	CAUSE_SW2  0x00000200  /* Software level 2 pending */
#define	CAUSE_SW1  0x00000100  /* Software level 1 pending */

#endif
