Subversion Repositories HelenOS

Rev

Rev 1837 | Rev 1896 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
885 decky 1
/*
2
 * Copyright (C) 2005 Martin Decky
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
1789 jermar 28
 
29
/**
30
 * @file
31
 * @brief   Architecture dependent parts of OpenFirmware interface.
32
 */
33
 
34
#include <ofwarch.h>  
1764 jermar 35
#include <ofw.h>
36
#include <printf.h>
1881 jermar 37
#include <string.h>
38
#include "main.h"
885 decky 39
 
1837 jermar 40
int bpp2align[] = {
41
    [0] = 0,        /** Invalid bpp. */
42
    [1] = 1,        /** 8bpp is not aligned. */
43
    [2] = 2,        /** 16bpp is naturally aligned. */
44
    [3] = 4,        /** 24bpp is aligned on 4 byte boundary. */
45
    [4] = 4,        /** 32bpp is naturally aligned. */
46
};
47
 
1764 jermar 48
void write(const char *str, const int len)
885 decky 49
{
1773 jermar 50
    int i;
51
 
52
    for (i = 0; i < len; i++) {
53
        if (str[i] == '\n')
54
            ofw_write("\r", 1);
55
        ofw_write(&str[i], 1);
56
    }
885 decky 57
}
1783 jermar 58
 
59
int ofw_translate_failed(ofw_arg_t flag)
60
{
61
    return flag != -1;
62
}
1789 jermar 63
 
64
int ofw_keyboard(keyboard_t *keyboard)
65
{
66
    char device_name[BUF_SIZE];
67
    uint32_t virtaddr;
68
 
69
    if (ofw_get_property(ofw_aliases, "keyboard", device_name, sizeof(device_name)) <= 0)
70
        return false;
71
 
72
    phandle device = ofw_find_device(device_name);
73
    if (device == -1)
74
        return false;
75
 
76
    if (ofw_get_property(device, "address", &virtaddr, sizeof(virtaddr)) <= 0)
77
        return false;
78
 
79
    if (!(keyboard->addr = ofw_translate((void *) ((uintptr_t) virtaddr))))
80
        return false;
81
 
82
    return true;
83
}
1881 jermar 84
 
85
int ofw_cpu(cpu_t *cpu)
86
{
87
    char type_name[BUF_SIZE];
88
 
89
    phandle node;
90
    node = ofw_get_child_node(ofw_root);
91
    if (node == 0 || node == -1) {
92
        printf("Could not find any child nodes of the root node.\n");
93
        return;
94
    }
95
 
96
    for (; node != 0 && node != -1; node = ofw_get_peer_node(node)) {
97
        if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) {
98
            if (strncmp(type_name, "cpu", 3) == 0) {
99
                uint32_t mhz;
100
 
101
                if (ofw_get_property(node, "clock-frequency", &mhz, sizeof(mhz)) <= 0)
102
                    continue;
103
 
104
                cpu->clock_frequency = mhz;
105
                return 1;
106
            }
107
        }
108
    };
109
 
110
    return 0;
111
}