/* $NetBSD: extern.h,v 1.5 2022/09/05 14:14:42 tsutsui Exp $ */

/*
 * Copyright (c) 2003 Naoto Shimazaki.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY NAOTO SHIMAZAKI AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE NAOTO OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LOCORE
#include <sys/types.h>

#include <netinet/in.h>
#include <netinet/in_systm.h>

#include <lib/libsa/net.h>
#include <lib/libsa/netif.h>

#include <mips/cpuregs.h>

#include <dev/ic/comreg.h>
#include <dev/ic/ns16550reg.h>
#include <dev/ic/st16650reg.h>
#define com_lcr com_cfcr

struct bootmenu_command {
        const char      *c_name;
        void (*c_fn)(char*);
};

#define BOOTOPT_MAGIC   0x4c43424fU     /* LCBO */
#define B_F_USE_BOOTP   0x00000001

struct boot_option {
        u_int32_t       b_magic;
        u_int32_t       b_flags;
        struct in_addr  b_remote_ip;
        struct in_addr  b_local_ip;
        struct in_addr  b_gate_ip;
        u_long          b_netmask;
        char            b_pathname[FNAME_SIZE];
};

#define ROMCS0_BASE     0xbe000000U
#define ROMCS3_BASE     0xbf800000U
#define FLASH_BASE      ROMCS0_BASE
#define BOOTOPTS_BASE   0xbfd20000U

/* ElapsedTime registers */
#define VRETIMEL        0x0b0000c0
#define VRETIMEM        0x0b0000c2
#define VRETIMEH        0x0b0000c4

#ifdef ROMICE
#define KERN_ROMBASE    0x80800000U
#else
#define KERN_ROMBASE    0xbf800000U
#endif

#define __REG_1(reg)    *((volatile u_int8_t*) (reg))
#define __REG_2(reg)    *((volatile u_int16_t*) (reg))
#define __REG_4(reg)    *((volatile u_int32_t*) (reg))

#define REGWRITE_1(base, off, val)      \
                (__REG_1(MIPS_PHYS_TO_KSEG1((u_int32_t) (base) + (off))) \
                 = (val))
#define REGWRITE_2(base, off, val)      \
                (__REG_2(MIPS_PHYS_TO_KSEG1((u_int32_t) (base) + (off))) \
                 = (val))
#define REGWRITE_4(base, off, val)      \
                (__REG_4(MIPS_PHYS_TO_KSEG1((u_int32_t) (base) + (off))) \
                 = (val))

#define REGREAD_1(base, off)    \
                (__REG_1(MIPS_PHYS_TO_KSEG1((u_int32_t) (base) + (off))))
#define REGREAD_2(base, off)    \
                (__REG_2(MIPS_PHYS_TO_KSEG1((u_int32_t) (base) + (off))))
#define REGREAD_4(base, off)    \
                (__REG_4(MIPS_PHYS_TO_KSEG1((u_int32_t) (base) + (off))))

#define ISKEY   ISSET(REGREAD_1(VR4181_SIU_ADDR, com_lsr), LSR_RXRDY)

#define bus_space_write_1(iot, ioh, off, val)   REGWRITE_1((ioh), (off), (val))
#define bus_space_write_2(iot, ioh, off, val)   REGWRITE_2((ioh), (off), (val))
#define bus_space_write_4(iot, ioh, off, val)   REGWRITE_4((ioh), (off), (val))
#define bus_space_read_1(iot, ioh, off) REGREAD_1((ioh), (off))
#define bus_space_read_2(iot, ioh, off) REGREAD_2((ioh), (off))
#define bus_space_read_4(iot, ioh, off) REGREAD_4((ioh), (off))
typedef void            *bus_space_tag_t;
typedef u_int32_t       bus_space_handle_t;
typedef size_t          bus_size_t;

extern struct netif_driver      cs_driver;
extern struct boot_option       bootopts;

void comcninit(void);
int iskey(void);
void start_netbsd(void);
int i28f128_probe(void *base);
int i28f128_region_write(void *dst, const void *src, size_t len);

/* dev_flash */
int flash_strategy(void *, int, daddr_t, size_t, void *, size_t *);
int flash_open(struct open_file *, ...);
int flash_close(struct open_file *);
int flash_ioctl(struct open_file *, u_long, void *);

/* dev_net */
int net_strategy(void *, int, daddr_t, size_t, void *, size_t *);
int net_open(struct open_file *, ...);
int net_close(struct open_file *);
int net_ioctl(struct open_file *, u_long, void *);

#endif /* !_LOCORE */

#define LCBOOT_STARTADDR        0x80001000
#define LCBOOT_ROMSTARTADDR     0xbfd01000
#define NETBSD_STARTADDR        0x80040000