diff options
Diffstat (limited to 'firmware/target/hosted/android/dx50/lcd-dx50.c')
-rw-r--r-- | firmware/target/hosted/android/dx50/lcd-dx50.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/firmware/target/hosted/android/dx50/lcd-dx50.c b/firmware/target/hosted/android/dx50/lcd-dx50.c new file mode 100644 index 0000000000..4d78baaf00 --- /dev/null +++ b/firmware/target/hosted/android/dx50/lcd-dx50.c | |||
@@ -0,0 +1,120 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id: lcd-bitmap.c 29248 2011-02-08 20:05:25Z thomasjfox $ | ||
9 | * | ||
10 | * Copyright (C) 2011 Lorenzo Miori, Thomas Martitz | ||
11 | * Copyright (C) 2013 Lorenzo Miori | ||
12 | * | ||
13 | * This program is free software; you can redistribute it and/or | ||
14 | * modify it under the terms of the GNU General Public License | ||
15 | * as published by the Free Software Foundation; either version 2 | ||
16 | * of the License, or (at your option) any later version. | ||
17 | * | ||
18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
19 | * KIND, either express or implied. | ||
20 | * | ||
21 | ****************************************************************************/ | ||
22 | |||
23 | #include <stdlib.h> | ||
24 | #include <unistd.h> | ||
25 | #include <stdio.h> | ||
26 | #include <linux/fb.h> | ||
27 | #include <sys/mman.h> | ||
28 | #include <sys/ioctl.h> | ||
29 | #include "config.h" | ||
30 | #include "file.h" | ||
31 | #include "debug.h" | ||
32 | #include "system.h" | ||
33 | #include "screendump.h" | ||
34 | #include "lcd.h" | ||
35 | #include "lcd-target.h" | ||
36 | |||
37 | static int dev_fd = 0; | ||
38 | fb_data *dev_fb = 0; | ||
39 | |||
40 | #ifdef HAVE_LCD_SHUTDOWN | ||
41 | void lcd_shutdown(void) | ||
42 | { | ||
43 | printf("FB closed."); | ||
44 | munmap(dev_fb, FRAMEBUFFER_SIZE); | ||
45 | close(dev_fd); | ||
46 | } | ||
47 | #endif | ||
48 | |||
49 | void lcd_init_device(void) | ||
50 | { | ||
51 | size_t screensize; | ||
52 | struct fb_var_screeninfo vinfo; | ||
53 | struct fb_fix_screeninfo finfo; | ||
54 | |||
55 | /* Open the framebuffer device */ | ||
56 | dev_fd = open("/dev/graphics/fb0", O_RDWR); | ||
57 | if (dev_fd == -1) { | ||
58 | perror("Error: cannot open framebuffer device"); | ||
59 | exit(1); | ||
60 | } | ||
61 | |||
62 | /* Get the fixed properties */ | ||
63 | if (ioctl(dev_fd, FBIOGET_FSCREENINFO, &finfo) == -1) { | ||
64 | perror("Error reading fixed information"); | ||
65 | exit(2); | ||
66 | } | ||
67 | |||
68 | |||
69 | /* Now we get the settable settings, and we set 16 bit bpp */ | ||
70 | if (ioctl(dev_fd, FBIOGET_VSCREENINFO, &vinfo) == -1) { | ||
71 | perror("Error reading variable information"); | ||
72 | exit(3); | ||
73 | } | ||
74 | /* framebuffer does not fit the screen, a bug of iBassos Firmware, not rockbox. | ||
75 | cannot be solved with parameters */ | ||
76 | vinfo.bits_per_pixel = LCD_DEPTH; | ||
77 | vinfo.xres = vinfo.xres_virtual = vinfo.width = LCD_WIDTH; | ||
78 | vinfo.yres = vinfo.yres_virtual = vinfo.height = LCD_HEIGHT; | ||
79 | |||
80 | if (ioctl(dev_fd, FBIOPUT_VSCREENINFO, &vinfo)) { | ||
81 | perror("fbset(ioctl)"); | ||
82 | exit(4); | ||
83 | } | ||
84 | |||
85 | /* Figure out the size of the screen in bytes */ | ||
86 | screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8; | ||
87 | if (screensize != FRAMEBUFFER_SIZE) { | ||
88 | exit(4); | ||
89 | perror("Display and framebuffer mismatch!\n"); | ||
90 | } | ||
91 | |||
92 | /* Map the device to memory */ | ||
93 | dev_fb = mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED, dev_fd, 0); | ||
94 | if ((int)dev_fb == -1) { | ||
95 | perror("Error: failed to map framebuffer device to memory"); | ||
96 | exit(4); | ||
97 | } | ||
98 | |||
99 | /* Be sure to turn on display at startup */ | ||
100 | ioctl(dev_fd, FBIOBLANK, VESA_NO_BLANKING); | ||
101 | #ifdef HAVE_LCD_ENABLE | ||
102 | lcd_set_active(true); | ||
103 | #endif | ||
104 | } | ||
105 | |||
106 | #ifdef HAVE_LCD_ENABLE | ||
107 | void lcd_enable(bool enable) | ||
108 | { | ||
109 | if (lcd_active() == enable) | ||
110 | return; | ||
111 | |||
112 | lcd_set_active(enable); | ||
113 | |||
114 | /* Turn on or off the display using Linux interface */ | ||
115 | ioctl(dev_fd, FBIOBLANK, enable ? VESA_NO_BLANKING : VESA_POWERDOWN); | ||
116 | |||
117 | if (enable) | ||
118 | send_event(LCD_EVENT_ACTIVATION, NULL); | ||
119 | } | ||
120 | #endif | ||