Subversion Repositories HelenOS

Rev

Rev 3022 | Rev 4201 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1596 palkovsky 1
/*
2071 jermar 2
 * Copyright (c) 2006 Ondrej Palkovsky
1596 palkovsky 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
 */
28
 
1653 cejka 29
/** @addtogroup klog KLog
4055 trochtova 30
 * @brief HelenOS KLog
1653 cejka 31
 * @{
4055 trochtova 32
 */
1653 cejka 33
/**
34
 * @file
35
 */
36
 
1596 palkovsky 37
#include <stdio.h>
38
#include <ipc/ipc.h>
39
#include <async.h>
40
#include <ipc/services.h>
41
#include <as.h>
1923 jermar 42
#include <sysinfo.h>
4055 trochtova 43
#include <io/stream.h>
44
#include <errno.h>
1596 palkovsky 45
 
4055 trochtova 46
#define NAME "klog"
47
 
48
#define KLOG_SIZE PAGE_SIZE
49
 
1596 palkovsky 50
/* Pointer to klog area */
51
static char *klog;
52
 
1721 palkovsky 53
static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
1596 palkovsky 54
{
4055 trochtova 55
    async_serialize_start();
1596 palkovsky 56
 
4055 trochtova 57
    size_t klog_start = (size_t) IPC_GET_ARG1(*call);
58
    size_t klog_len = (size_t) IPC_GET_ARG2(*call);
59
    size_t klog_stored = (size_t) IPC_GET_ARG3(*call);
60
    size_t i;
61
    for (i = klog_len - klog_stored; i < klog_len; i++)
62
        putchar(klog[(klog_start + i) % KLOG_SIZE]);
63
 
1610 palkovsky 64
    async_serialize_end();
1596 palkovsky 65
}
66
 
67
int main(int argc, char *argv[])
68
{
4055 trochtova 69
    console_wait();
1596 palkovsky 70
 
4055 trochtova 71
    klog = (char *) as_get_mappable_page(KLOG_SIZE);
72
    if (klog == NULL) {
73
        printf(NAME ": Error allocating memory area\n");
74
        return -1;
75
    }
76
 
77
    int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, KLOG_SIZE,
2677 jermar 78
        SERVICE_MEM_KLOG);
4055 trochtova 79
    if (res != EOK) {
80
        printf(NAME ": Error initializing memory area\n");
81
        return -1;
1596 palkovsky 82
    }
4055 trochtova 83
 
84
    int devno = sysinfo_value("klog.devno");
1923 jermar 85
    int inr = sysinfo_value("klog.inr");
4055 trochtova 86
    if (ipc_register_irq(inr, devno, 0, NULL) != EOK) {
87
        printf(NAME ": Error registering klog notifications\n");
88
        return -1;
1596 palkovsky 89
    }
4055 trochtova 90
 
1596 palkovsky 91
    async_set_interrupt_received(interrupt_received);
4055 trochtova 92
    klog_update();
1596 palkovsky 93
    async_manager();
94
 
95
    return 0;
96
}
1653 cejka 97
 
98
/** @}
99
 */