/*      $NetBSD: boot.c,v 1.27 2014/08/08 19:45:48 joerg Exp $  */

/*
 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
 * Copyright (C) 1995, 1996 TooLs GmbH.
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by TooLs GmbH.
 * 4. The name of TooLs GmbH may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
 */

#include <lib/libsa/stand.h>
#include <lib/libsa/loadfile.h>
#include <lib/libkern/libkern.h>
#include <sys/boot_flag.h>
#include <sys/reboot.h>
#include <machine/bootinfo.h>
#include <machine/cpu.h>

#include "boot.h"
#include "sdvar.h"
#include "wdvar.h"

char *names[] = {
        "/dev/disk/scsi/000/0_0:/netbsd",
        "/dev/disk/ide/0/master/0_0:/netbsd",
        "/dev/disk/floppy:netbsd",      "/dev/disk/floppy:netbsd.gz",
        "/dev/disk/scsi/000/0_0:/onetbsd",
        "/dev/disk/ide/0/master/0_0:/onetbsd",
        "/dev/disk/floppy:onetbsd",     "/dev/disk/floppy:onetbsd.gz"
        "in",
};
#define NUMNAMES (sizeof (names) / sizeof (names[0]))

#define NAMELEN 128
char namebuf[NAMELEN];
char nametmp[NAMELEN];

struct btinfo_memory btinfo_memory;
struct btinfo_console btinfo_console;
struct btinfo_clock btinfo_clock;
struct btinfo_rootdevice btinfo_rootdevice;

extern char bootprog_name[], bootprog_rev[];

void main(void);
void exec_kernel(char *, void *);

void
main(void)
{
        int n = 0;
        int addr, speed;
        char *name, *cnname;
        void *bootinfo;

        if (whichCPU() == 1)
                cpu1();
        resetCPU1();

        scanPCI();

        /*
         * console init
         */
        cnname = cninit(&addr, &speed);

        /*
         * make bootinfo
         */
        bootinfo = (void *)0x3030;

        /*
         * memory
         */
        btinfo_memory.common.next = sizeof (btinfo_memory);
        btinfo_memory.common.type = BTINFO_MEMORY;
        btinfo_memory.memsize = *(int *)0x3010;

        /*
         * console
         */
        btinfo_console.common.next = sizeof (btinfo_console);
        btinfo_console.common.type = BTINFO_CONSOLE;
        strcpy(btinfo_console.devname, cnname);
        btinfo_console.addr = addr;
        btinfo_console.speed = speed;

        /*
         * clock
         */
        btinfo_clock.common.next = 0;
        btinfo_clock.common.type = BTINFO_CLOCK;
        btinfo_clock.ticks_per_sec = TICKS_PER_SEC;

        runCPU1((void *)start_CPU1);
        wait_for(&CPU1_alive);

        printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
        printf(">> Memory: %d k\n", btinfo_memory.memsize / 1024);

        /*
         * attached kernel check and copy.
         */
        init_in();

        printf("\n");

        /* Initialize siop@pci0 dev 12 func 0 */
        siop_init(0, 12, 0);

        /* Initialize wdc@isa port 0x1f0 */
        wdc_init(0x1f0);

        for (;;) {
                name = names[n++];
                if (n >= NUMNAMES)
                        n = 0;

                exec_kernel(name, bootinfo);
        }
}

/*
 * Exec kernel
 */
void
exec_kernel(char *name, void *bootinfo)
{
        int howto = 0, i;
        char c, *ptr;
        u_long marks[MARK_MAX];
        void *p;
#ifdef DBMONITOR
        int go_monitor;

ret:
#endif /* DBMONITOR */
        printf("\nBoot: ");
        memset(namebuf, 0, sizeof (namebuf));
        (void)tgets(namebuf);

        ptr = namebuf;
#ifdef DBMONITOR
        go_monitor = 0;
        if (*ptr == '!') {
                if (*(++ptr) == NULL) {
                        db_monitor();
                        printf("\n");
                        goto ret;
                } else {
                        go_monitor++;
                }
        }
#endif /* DBMONITOR */
        while ((c = *ptr)) {
                while (c == ' ')
                        c = *++ptr;
                if (!c)
                        goto next;
                if (c == '-') {
                        while ((c = *++ptr) && c != ' ')
                                BOOT_FLAG(c, howto);
                } else {
                        name = ptr;
                        while ((c = *++ptr) && c != ' ');
                        if (c)
                                *ptr++ = 0;
                }
        }

next:
        printf("Loading %s\n", name);

        marks[MARK_START] = 0;
        if (loadfile(name, marks, LOAD_ALL) == 0) {
#ifdef DBMONITOR
                if (go_monitor) {
                        db_monitor();
                        printf("\n");
                }
#endif /* DBMONITOR */

                p = bootinfo;

                /*
                 * root device
                 */
                btinfo_rootdevice.common.next = sizeof (btinfo_rootdevice);
                btinfo_rootdevice.common.type = BTINFO_ROOTDEVICE;
                strncpy(btinfo_rootdevice.rootdevice, name,
                    sizeof (btinfo_rootdevice.rootdevice));
                i = 0;
                while (btinfo_rootdevice.rootdevice[i] != '\0') {
                        if (btinfo_rootdevice.rootdevice[i] == ':')
                                break;
                        i++;
                }
                if (btinfo_rootdevice.rootdevice[i] == ':') {
                        /* It is NOT in-kernel. */

                        btinfo_rootdevice.rootdevice[i] = '\0';

                        memcpy(p, (void *)&btinfo_rootdevice,
                            sizeof (btinfo_rootdevice));
                        p += sizeof (btinfo_rootdevice);
                }

                memcpy(p, (void *)&btinfo_memory, sizeof (btinfo_memory));
                p += sizeof (btinfo_memory);
                memcpy(p, (void *)&btinfo_console, sizeof (btinfo_console));
                p += sizeof (btinfo_console);
                memcpy(p, (void *)&btinfo_clock, sizeof (btinfo_clock));

                printf("start=0x%lx\n\n", marks[MARK_ENTRY]);
                delay(1000);
                __syncicache((void *)marks[MARK_ENTRY],
                        (u_int)marks[MARK_SYM] - (u_int)marks[MARK_ENTRY]);

                *(volatile u_long *)0x0080 = marks[MARK_ENTRY];
                run((void *)marks[MARK_SYM],
                    (void *)marks[MARK_END],
                    (void *)howto,
                    bootinfo,
                    (void *)marks[MARK_ENTRY]);
        }
}

void
_rtt(void)
{

        /* XXXX */
        __unreachable();
}