1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/* Copyright (c) 2006 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Neither the name of the Advanced Micro Devices, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* Includes that are used by all drivers */
#include <xf86.h>
#include <xf86_OSproc.h>
#include <xf86Resources.h>
#include <compiler.h>
#include "geode.h"
#include <unistd.h>
#include <fcntl.h>
#define DCON_SLEEP_FILE "/sys/devices/platform/dcon/sleep"
static Bool
dcon_present(void)
{
static int _dval = -1;
if (_dval == -1)
_dval = (access("/sys/devices/platform/dcon", F_OK) == 0);
return (Bool) _dval;
}
int
DCONDPMSSet(ScrnInfoPtr pScrni, int mode, int flags)
{
static int failed = -1;
int fd;
char value[1];
if (failed == -1)
failed = !dcon_present();
if (failed)
return 0;
fd = open(DCON_SLEEP_FILE, O_WRONLY);
if (fd < 0) {
failed = 1;
return 0;
}
switch (mode) {
case DPMSModeOn:
value[0] = '0';
break;
case DPMSModeStandby:
case DPMSModeSuspend:
case DPMSModeOff:
value[0] = '1';
break;
}
write(fd, value, sizeof(value));
close(fd);
return 1;
}
Bool
dcon_init(ScrnInfoPtr pScrni)
{
GeodeRec *pGeode = GEODEPTR(pScrni);
if (!dcon_present()) {
xf86DrvMsg(pScrni->scrnIndex, X_DEFAULT, "No DCON is present\n");
return FALSE;
}
/* TODO: Print board revision once sysfs exports it. */
xf86DrvMsg(pScrni->scrnIndex, X_DEFAULT, "DCON detected.\n");
/* Panel size setup */
pGeode->PanelX = DCON_DEFAULT_XRES;
pGeode->PanelY = DCON_DEFAULT_YRES;
/* FIXME: Mode setup should go here */
/* FIXME: Controller setup should go here */
return TRUE;
}
|
