1/*
2 * Copyright © 2007 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Eric Anholt <eric@anholt.net>
25 *
26 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <string.h>
31#include <stdarg.h>
32#include <sys/types.h>
33#include <sys/mman.h>
34#include <pciaccess.h>
35#include <err.h>
36#include <unistd.h>
37#include <fcntl.h>
38
39#include "reg_dumper.h"
40#include "../i810_reg.h"
41
42int main(int argc, char **argv)
43{
44    I830Rec i830;
45    I830Ptr pI830 = &i830;
46    int devmem;
47    uint32_t hws_offset;
48    volatile uint32_t *hws;
49
50    intel_i830rec_init(pI830);
51
52    if (HWS_NEED_GFX(pI830))
53	errx(1, "status page in graphics virtual unsupported.\n");
54
55    hws_offset = INREG(HWS_PGA);
56
57    devmem = open("/dev/mem", O_RDWR, 0);
58    if (devmem == -1)
59	err(1, "Couldn't open /dev/mem");
60
61    hws = mmap(NULL, 4096, PROT_READ, MAP_SHARED, devmem, hws_offset);
62    if (hws == MAP_FAILED)
63	err(1, "Couldn't map /dev/mem at 0x%08x", hws_offset);
64
65    close(devmem);
66
67    for (;;) {
68	int i;
69
70	printf("\n");
71
72	for (i = 0; i < 64; i += 4) {
73	    printf("0x%04x: 0x%08x 0x%08x 0x%08x 0x%08x\n", i * 4,
74		   hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
75	}
76
77	sleep(1);
78    }
79
80    return 0;
81}
82