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
|
/*
* Copyright (c) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*
* GPL v2
*/
#include <common.h>
#include <driver.h>
#include <init.h>
#include <malloc.h>
#include <mach/linux.h>
#include <fb.h>
#include <errno.h>
#include <gui/graphic_utils.h>
static void sdlfb_enable(struct fb_info *info)
{
int ret;
ret = sdl_open(info->xres, info->yres, info->bits_per_pixel,
info->screen_base);
if (ret)
return;
sdl_get_bitfield_rgba(&info->red, &info->green, &info->blue, &info->transp);
sdl_start_timer();
}
static void sdlfb_disable(struct fb_info *info)
{
sdl_stop_timer();
sdl_close();
}
static struct fb_ops sdlfb_ops = {
.fb_enable = sdlfb_enable,
.fb_disable = sdlfb_disable,
};
static int sdlfb_probe(struct device_d *dev)
{
struct fb_info *fb;
int ret = -EIO;
if (!dev->platform_data)
return -EIO;
fb = xzalloc(sizeof(*fb));
fb->modes.modes = fb->mode = dev->platform_data;
fb->modes.num_modes = 1;
fb->bits_per_pixel = 4 << 3;
fb->xres = fb->mode->xres;
fb->yres = fb->mode->yres;
fb->priv = fb;
fb->fbops = &sdlfb_ops,
fb->dev.parent = dev;
fb->screen_base = xzalloc(fb->xres * fb->yres *
fb->bits_per_pixel >> 3);
dev_dbg(dev, "red: length = %d, offset = %d\n",
fb->red.length, fb->red.offset);
dev_dbg(dev, "green: length = %d, offset = %d\n",
fb->green.length, fb->green.offset);
dev_dbg(dev, "blue: length = %d, offset = %d\n",
fb->blue.length, fb->blue.offset);
dev_dbg(dev, "transp: length = %d, offset = %d\n",
fb->transp.length, fb->transp.offset);
/* add runtime hardware info */
dev->priv = fb;
ret = register_framebuffer(fb);
if (!ret)
return 0;
kfree(fb->screen_base);
kfree(fb);
sdl_close();
return ret;
}
static void sdlfb_remove(struct device_d *dev)
{
struct fb_info *fb = dev->priv;
kfree(fb->screen_base);
kfree(fb);
sdl_close();
}
static struct driver_d sdlfb_driver = {
.name = "sdlfb",
.probe = sdlfb_probe,
.remove = sdlfb_remove,
};
device_platform_driver(sdlfb_driver);
|