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885 decky 1
/*
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 * Copyright (C) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef __OFW_H__
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#define __OFW_H__
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#include <types.h>
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#include <stdarg.h>
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#define BUF_SIZE        1024
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#define MEMMAP_MAX_RECORDS  32
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#define MAX_OFW_ARGS            12
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typedef unsigned long ofw_arg_t;
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typedef unsigned int ihandle;
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typedef unsigned int phandle;
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/** OpenFirmware command structure
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 *
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 */
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typedef struct {
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    const char *service;        /**< Command name */
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    unsigned long nargs;        /**< Number of in arguments */
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    unsigned long nret;     /**< Number of out arguments */
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    ofw_arg_t args[MAX_OFW_ARGS];   /**< List of arguments */
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} ofw_args_t;
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typedef struct {
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    void *start;
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    unsigned int size;
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} memzone_t;
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typedef struct {
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    unsigned int total;
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    unsigned int count;
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    memzone_t zones[MEMMAP_MAX_RECORDS];
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} memmap_t;
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typedef struct {
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    uint32_t addr;
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    unsigned int width;
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    unsigned int height;
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    unsigned int bpp;
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    unsigned int scanline;
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} screen_t;
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typedef struct {
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    uint32_t addr;
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    unsigned int size;
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} keyboard_t;
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typedef struct {
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    unsigned int info;
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    unsigned int addr_hi;
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    unsigned int addr_lo;
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} pci_addr_t;
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typedef struct {
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    pci_addr_t addr;
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    unsigned int size_hi;
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    unsigned int size_lo;
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} pci_reg_t;
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extern uintptr_t ofw_cif;
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extern phandle ofw_aliases;
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extern void init(void);
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extern void ofw_write(const char *str, const int len);
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extern int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen);
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extern phandle ofw_find_device(const char *name);
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extern int ofw(ofw_args_t *arg);
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extern void *ofw_translate(const void *virt);
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extern int ofw_translate_failed(ofw_arg_t flag);
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extern void *ofw_claim(const void *virt, const int len);
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extern int ofw_map(const void *phys, const void *virt, const int size, const int mode);
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extern int ofw_memmap(memmap_t *map);
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extern int ofw_screen(screen_t *screen);
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extern int ofw_keyboard(keyboard_t *keyboard);
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#endif