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/*
* prom.h - Routines for talking to the Open Firmware PROM
*
* Copyright (C) 2001 Ethan Benson
*
* Copyright (C) 1999 Benjamin Herrenschmidt
*
* Copyright (C) 1999 Marius Vollmer
*
* Copyright (C) 1996 Paul Mackerras.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef PROM_H
#define PROM_H
#include "types.h"
#include "stdarg.h"
typedef void *prom_handle;
typedef void *ihandle;
typedef void *phandle;
#define PROM_INVALID_HANDLE ((prom_handle)-1UL)
#define BOOTDEVSZ (2048) /* iscsi args can be in excess of 1040 bytes */
#define TOK_ISCSI "iscsi"
#define PROM_CLAIM_MAX_ADDR 0x8000000
#define BOOTLASTSZ 1024
#define FW_NBR_REBOOTSZ 4
struct prom_args;
typedef int (*prom_entry)(struct prom_args *);
extern void prom_init (prom_entry pe);
extern prom_entry prom;
/* I/O */
extern prom_handle prom_stdin;
extern prom_handle prom_stdout;
prom_handle prom_open (char *spec);
int prom_read (prom_handle file, void *buf, int len);
int prom_write (prom_handle file, void *buf, int len);
int prom_seek (prom_handle file, int pos);
int prom_lseek (prom_handle file, unsigned long long pos);
int prom_readblocks (prom_handle file, int blockNum, int blockCount, void *buffer);
void prom_close (prom_handle file);
int prom_getblksize (prom_handle file);
int prom_loadmethod (prom_handle device, void* addr);
#define K_UP 0x141
#define K_DOWN 0x142
#define K_LEFT 0x144
#define K_RIGHT 0x143
int prom_getchar ();
void prom_putchar (char);
int prom_nbgetchar();
#ifdef __GNUC__
void prom_vfprintf (prom_handle, const char *, va_list) __attribute__ ((format (printf, 2, 0)));
void prom_vprintf (const char *fmt, va_list ap) __attribute__ ((format (printf, 1, 0)));
void prom_fprintf (prom_handle, const char *, ...) __attribute__ ((format (printf, 2, 3)));
void prom_printf (const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
#else
void prom_vfprintf (prom_handle, const char *, va_list);
void prom_vprintf (const char *fmt, va_list ap);
void prom_fprintf (prom_handle, const char *, ...);
void prom_printf (const char *fmt, ...);
#endif
void prom_perror (int error, char *filename);
void prom_readline (char *prompt, char *line, int len);
int prom_set_color(prom_handle device, int color, int r, int g, int b);
/* memory */
void *prom_claim_chunk(void *virt, unsigned int size, unsigned int align);
void *prom_claim (void *virt, unsigned int size, unsigned int align);
void prom_release(void *virt, unsigned int size);
void prom_map (void *phys, void *virt, int size);
/* packages and device nodes */
prom_handle prom_finddevice (char *name);
prom_handle prom_findpackage (char *path);
int prom_getprop (prom_handle dev, char *name, void *buf, int len);
int prom_setprop (prom_handle dev, char *name, void *buf, int len);
int prom_getproplen(prom_handle, const char *);
int prom_get_devtype (char *device);
/* misc */
char *prom_getargs ();
void prom_setargs (char *args);
void prom_exit ();
void prom_abort (char *fmt, ...);
void prom_sleep (int seconds);
int prom_interpret (char *forth);
int prom_get_chosen (char *name, void *mem, int len);
int prom_get_options (char *name, void *mem, int len);
int prom_set_options (char *name, void *mem, int len);
extern int prom_getms(void);
extern void prom_pause(void);
extern void *call_prom (const char *service, int nargs, int nret, ...);
extern void *call_prom_return (const char *service, int nargs, int nret, ...);
/* Netboot stuffs */
/*
* "bootp-response" is the property name which is specified in
* the recommended practice doc for obp-tftp. However, pmac
* provides a "dhcp-response" property and chrp provides a
* "bootpreply-packet" property. The latter appears to begin the
* bootp packet at offset 0x2a in the property for some reason.
*/
struct bootp_property_offset {
char *name; /* property name */
int offset; /* offset into property where bootp packet occurs */
};
static const struct bootp_property_offset bootp_response_properties[] = {
{ .name = "bootp-response", .offset = 0 },
{ .name = "dhcp-response", .offset = 0 },
{ .name = "bootpreply-packet", .offset = 0x2a },
};
struct bootp_packet {
__u8 op, htype, hlen, hops;
__u32 xid;
__u16 secs, flags;
__u32 ciaddr, yiaddr, siaddr, giaddr;
unsigned char chaddr[16];
unsigned char sname[64];
unsigned char file[128];
/* vendor options go here if we need them */
};
struct bootp_packet * prom_get_netinfo (void);
char * prom_get_macaddr(const struct bootp_packet *);
char * prom_get_ipaddr(const struct bootp_packet *);
#endif