/*
 * Copyright (C) 2011 Serge Vakulenko <serge@vak.ru>
 *
 * This file is part of the virtualmips distribution.
 * See LICENSE file for terms of the license.
 */
#ifndef __PIC32_H__
#define __PIC32_H__

#include "types.h"
#include "pic32mx.h"
#include "dev_sdcard.h"
#include "dev_swap.h"

#define DATA_WIDTH          32          /* MIPS32 architecture */
#define LL                              /* empty - printf format for machine word */

/*
 * Data types
 */
typedef m_uint32_t m_va_t;
typedef m_uint32_t m_pa_t;
typedef m_uint32_t m_reg_t;
typedef m_int32_t m_ireg_t;
typedef m_uint32_t m_cp0_reg_t;

/*Guest endian*/
#define GUEST_BYTE_ORDER  ARCH_LITTLE_ENDIAN

/* Host to VM conversion functions */
#if HOST_BYTE_ORDER == GUEST_BYTE_ORDER
#define htovm16(x) (x)
#define htovm32(x) (x)
#define htovm64(x) (x)

#define vmtoh16(x) (x)
#define vmtoh32(x) (x)
#define vmtoh64(x) (x)
#else //host:big guest:little

#define htovm16(x) (ntohs(x))
#define htovm32(x) (ntohl(x))
#define htovm64(x) (swap64(x))

#define vmtoh16(x) (htons(x))
#define vmtoh32(x) (htonl(x))
#define vmtoh64(x) (swap64(x))
#endif

struct pic32_system {
    /* Associated VM instance */
    vm_instance_t *vm;

    unsigned start_address;         /* jump here on reset */
    unsigned boot_flash_size;       /* size of boot flash in kbytes */
    unsigned boot_flash_address;    /* physical address of boot flash */
    char *boot_file_name;           /* image of boot flash */

    unsigned sdcard_port;           /* SPI port number */
    unsigned sdcard0_size;          /* size of SD card 0 in Mbytes */
    unsigned sdcard1_size;          /* size of SD card 1 in Mbytes */
    char *sdcard0_file_name;        /* image of SD card 0 */
    char *sdcard1_file_name;        /* image of SD card 1 */
    sdcard_t sdcard [2];            /* max number of sdcards */

    swap_t swap;                    /* swap device */

    struct vdevice *intdev;         /* interrupt controller */
    unsigned intcon;                /* interrupt control */
    unsigned intstat;               /* interrupt status */
    unsigned iptmr;                 /* temporal proximity */
    unsigned ifs[3];                /* interrupt flag status */
    unsigned iec[3];                /* interrupt enable control */
    unsigned ipc[12];               /* interrupt priority control */
    unsigned ivprio[64];            /* priority of interrupt vectors */

    struct vdevice *timer1;         /* timer 1 */
    struct vdevice *timer2;         /* timer 2 */
    struct vdevice *timer3;         /* timer 3 */
    struct vdevice *timer4;         /* timer 4 */
    struct vdevice *timer5;         /* timer 5 */

    struct vdevice *bmxdev;         /* memory controller */
    unsigned bmxcon;                /* memory control */
    unsigned bmx_ram_kpba;          /* RAM kernel program base address */
    unsigned bmx_ram_udba;          /* RAM user data base address */
    unsigned bmx_ram_upba;          /* RAM user program base address */
    unsigned bmx_flash_upba;        /* Flash user program base address */

    struct vdevice *rtcdev;         /* RTCC controller */
    unsigned rtccon;                /* RTC control */

    struct vdevice *dmadev;         /* DMA controller */
    unsigned dmacon;                /* DMA control */
    unsigned dmastat;               /* DMA status */
    unsigned dmaaddr;               /* DMA address */

    struct vdevice *sysdev;         /* System controller */
    unsigned osccon;
    unsigned osctun;
    unsigned ddpcon;                /* Debug data port control */
    unsigned devid;                 /* Device identifier */
    unsigned syskey;
    unsigned rcon;
    unsigned rswrst;

    unsigned ad1con1;               /* Analog to digital converter */
    unsigned ad1con2;
    unsigned ad1con3;
    unsigned ad1chs;
    unsigned ad1cssl;
    unsigned ad1pcfg;

    struct vdevice *cfgdev;         /* Device configuration */
    unsigned devcfg3;
    unsigned devcfg2;
    unsigned devcfg1;
    unsigned devcfg0;

    struct vdevice *prefetch;       /* Prefetch cache controller */
    unsigned checon;
};

typedef struct pic32_system pic32_t;
struct virtual_tty;

vm_instance_t *create_instance (char *conf);
int init_instance (vm_instance_t *vm);
int pic32_reset (vm_instance_t *vm);
void pic32_update_irq_flag (pic32_t *pic32);
void pic32_set_irq (vm_instance_t *vm, unsigned irq);
void pic32_clear_irq (vm_instance_t *vm, unsigned irq);
int dev_pic32_flash_init (vm_instance_t *vm, char *name,
    unsigned flash_kbytes, unsigned flash_address, char *filename);
int dev_pic32_uart_init (vm_instance_t *vm, char *name, unsigned paddr,
    unsigned irq, struct virtual_tty *vtty);
int dev_pic32_intcon_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_dmacon_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_syscon_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_adc_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_prefetch_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_bmxcon_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_rtcc_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_spi_init (vm_instance_t *vm, char *name, unsigned paddr,
    unsigned irq);
struct vdevice *dev_pic32_timer_init (vm_instance_t *vm, char *name,
    unsigned paddr, unsigned irq);
int dev_pic32_gpio_init (vm_instance_t *vm, char *name, unsigned paddr);
int dev_pic32_devcfg_init (vm_instance_t *vm, char *name, unsigned paddr);
void dev_pic32_timer_tick (cpu_mips_t *cpu, struct vdevice *dev, unsigned nclocks);
void dumpregs (cpu_mips_t *cpu);

#endif