* Copyright (c) 1995 Theo de Raadt

/* $NetBSD: prom.h,v 1.18 2013/09/23 01:39:27 tsutsui Exp $ */

/*
* Copyright (c) 1995 Theo de Raadt
* 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 THE AUTHOR ``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 AUTHOR 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.
*/

#define MVMEPROM_INCHR 0x00
#define MVMEPROM_INSTAT 0x01
#define MVMEPROM_INLN 0x02
#define MVMEPROM_READSTR 0x03
#define MVMEPROM_READLN 0x04
#define MVMEPROM_OUTCHR 0x20
#define MVMEPROM_OUTSTR 0x21
#define MVMEPROM_DSKRD 0x10
#define MVMEPROM_DSKWR 0x11
#define MVMEPROM_DSKCFIG 0x12
#define MVMEPROM_DSKFMT 0x14
#define MVMEPROM_DSKCTRL 0x15
#define MVMEPROM_NETCTRL 0x1d
#define MVMEPROM_OUTSTRCRLF 0x22
#define MVMEPROM_WRITE 0x23
#define MVMEPROM_WRITELN 0x24
#define MVMEPROM_DELAY 0x43
#define MVMEPROM_RTC_RD 0x53
#define MVMEPROM_EXIT 0x63
#define MVMEPROM_GETBRDID 0x70
#define MVMEPROM_ENVIRON 0x71

#define NETCTRLCMD_GETETHER 1

#define ENVIRONCMD_WRITE 1
#define ENVIRONCMD_READ 2
#define ENVIRONTYPE_EOL 0
#define ENVIRONTYPE_START 1
#define ENVIRONTYPE_DISKBOOT 2
#define ENVIRONTYPE_ROMBOOT 3
#define ENVIRONTYPE_NETBOOT 4
#define ENVIRONTYPE_MEMSIZE 5

#ifndef _LOCORE
struct prom_netctrl {
u_char dev;
u_char ctrl;
u_short status;
u_long cmd;
u_long addr;
u_long len;
u_long flags;
};

struct prom_environ_hdr {
u_char type;
u_char len;
};

struct mvmeprom_brdid {
u_long eye_catcher;
u_char rev;
u_char month;
u_char day;
u_char year;
u_short size;
u_short rsv1;
u_short model;
u_short suffix;
u_short options;
u_char family;
u_char cpu;
u_short ctrlun;
u_short devlun;
u_short devtype;
u_short devnum;
u_long bug;

/*
* XXX: I have seen no documentation for these!
*
* The following (appears to) exist only on the MVME162 and
* upwards. We should figure out what the other fields are.
*/
u_char xx1[16];
u_char xx2[4];
u_char longname[12];
u_char xx3[16];
u_char speed[4];
u_char xx4[12];
};

struct mvmeprom_time {
u_char year_BCD;
u_char month_BCD;
u_char day_BCD;
u_char wday_BCD;
u_char hour_BCD;
u_char min_BCD;
u_char sec_BCD;
u_char cal_BCD;
};

struct mvmeprom_dskio {
u_char ctrl_lun;
u_char dev_lun;
u_short status;
void *pbuffer;
u_long blk_num;
u_short blk_cnt;
u_char flag;
#define BUG_FILE_MARK 0x80
#define IGNORE_FILENUM 0x02
#define END_OF_FILE 0x01
u_char addr_mod;
};
#define MVMEPROM_BLOCK_SIZE 256

struct mvmeprom_args {
u_int dev_lun;
u_int ctrl_lun;
u_int flags;
u_int ctrl_addr;
u_int entry;
u_int conf_blk;
char *nbarg_start;
char *nbarg_end;
char *arg_start;
char *arg_end;
u_int cputyp;
};

#endif

#define MVMEPROM_CALL(x) \
__asm volatile ("trap #15; .short " __STRING(x))
#define MVMEPROM_NOARG() \
__asm volatile ("clrl %sp@-")
#define MVMEPROM_ARG1(arg) \
__asm volatile ("movel %0, %%sp@-"::"d" (arg))
#define MVMEPROM_ARG2(arg0, arg1) \
__asm volatile ("movel %0, %%sp@-;" \
"movel %1, %%sp@-;" \
:: "d" (arg0), "d" (arg1):)
#define MVMEPROM_GETRES(ret) \
__asm volatile ("movel %%sp@+,%0": "=d" (ret):)
#define MVMEPROM_GETSR(ret) \
__asm volatile ("movew %%sr,%0": "=d" (ret):)
#define MVMEPROM_RETURN(ret) \
MVMEPROM_GETRES(ret); \
return (ret); /* return a value (int) */
/* return a byte, ret must be int */
#define MVMEPROM_RETURN_BYTE(ret) \
MVMEPROM_GETRES(ret); \
return(int)((((unsigned int)(ret)) >> 24) & 0xff);
#define MVMEPROM_STATRET(ret) \
MVMEPROM_GETSR(ret); \
return ((ret & 0x4) == 0); /* return a 'status' in the Z flag */

#define MVMEPROM_REG_DEVLUN %d0
#define MVMEPROM_REG_CTRLLUN %d1
#define MVMEPROM_REG_FLAGS %d4
#define MVMEPROM_REG_CTRLADDR %a0
#define MVMEPROM_REG_ENTRY %a1
#define MVMEPROM_REG_CONFBLK %a2
#define MVMEPROM_REG_NBARGSTART %a3
#define MVMEPROM_REG_NBARGEND %a4
#define MVMEPROM_REG_ARGSTART %a5
#define MVMEPROM_REG_ARGEND %a6

#define MVMEPROM_ARGS_DEVLUN 0x00
#define MVMEPROM_ARGS_CTRLLUN 0x04
#define MVMEPROM_ARGS_FLAGS 0x08
#define MVMEPROM_ARGS_CTRLADDR 0x0c
#define MVMEPROM_ARGS_ENTRY 0x10
#define MVMEPROM_ARGS_CONFBLK 0x14
#define MVMEPROM_ARGS_NBARGSTART 0x18
#define MVMEPROM_ARGS_NBARGEND 0x1c
#define MVMEPROM_ARGS_ARGSTART 0x20
#define MVMEPROM_ARGS_ARGEND 0x24
#define MVMEPROM_ARGS_CPUTYP 0x28
#define MVMEPROM_ARGS_MAX 0x2c

#ifndef RB_NOSYM
#define RB_NOSYM 0x400
#endif
#ifndef RB_SBOOT
#define RB_SBOOT 0x800
#endif