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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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/**
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 * @file
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 * @brief   Architecture dependent parts of OpenFirmware interface.
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 */
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#include <ofwarch.h>  
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#include <ofw.h>
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#include <printf.h>
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void write(const char *str, const int len)
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{
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    int i;
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    for (i = 0; i < len; i++) {
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        if (str[i] == '\n')
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            ofw_write("\r", 1);
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        ofw_write(&str[i], 1);
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    }
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}
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int ofw_translate_failed(ofw_arg_t flag)
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{
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    return flag != -1;
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}
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int ofw_keyboard(keyboard_t *keyboard)
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{
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    char device_name[BUF_SIZE];
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    uint32_t virtaddr;
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    if (ofw_get_property(ofw_aliases, "keyboard", device_name, sizeof(device_name)) <= 0)
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        return false;
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    phandle device = ofw_find_device(device_name);
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    if (device == -1)
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        return false;
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    if (ofw_get_property(device, "address", &virtaddr, sizeof(virtaddr)) <= 0)
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        return false;
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    if (!(keyboard->addr = ofw_translate((void *) ((uintptr_t) virtaddr))))
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        return false;
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    return true;
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}