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author | Marcin Bukat <marcin.bukat@gmail.com> | 2010-04-26 21:40:16 +0000 |
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committer | Marcin Bukat <marcin.bukat@gmail.com> | 2010-04-26 21:40:16 +0000 |
commit | 28d54c6016459ffe93c0be2efea7de27c38d783c (patch) | |
tree | 9a7a71481f0a82599616a3e9f4e5bdad9fee8d6c /firmware/target/coldfire/mpio/hd200/backlight-hd200.c | |
parent | b09d3aec392538ca0934644ff6357c41aaa4c323 (diff) | |
download | rockbox-28d54c6016459ffe93c0be2efea7de27c38d783c.tar.gz rockbox-28d54c6016459ffe93c0be2efea7de27c38d783c.zip |
Add MPIO HD200 port - new files
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25725 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/coldfire/mpio/hd200/backlight-hd200.c')
-rw-r--r-- | firmware/target/coldfire/mpio/hd200/backlight-hd200.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/firmware/target/coldfire/mpio/hd200/backlight-hd200.c b/firmware/target/coldfire/mpio/hd200/backlight-hd200.c new file mode 100644 index 0000000000..783376c91e --- /dev/null +++ b/firmware/target/coldfire/mpio/hd200/backlight-hd200.c | |||
@@ -0,0 +1,86 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id:$ | ||
9 | * | ||
10 | * Copyright (C) 2010 Marcin Bukat | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | |||
22 | #include "config.h" | ||
23 | #include "cpu.h" | ||
24 | #include "kernel.h" | ||
25 | #include "system.h" | ||
26 | #include "backlight.h" | ||
27 | #include "backlight-target.h" | ||
28 | #include "lcd.h" | ||
29 | |||
30 | static bool _backlight_on = false; | ||
31 | static int _brightness = DEFAULT_BRIGHTNESS_SETTING; | ||
32 | |||
33 | /* Returns the current state of the backlight (true=ON, false=OFF). */ | ||
34 | bool _backlight_init(void) | ||
35 | { | ||
36 | and_l(~(1<<28),&GPIO_OUT); | ||
37 | or_l((1<<28),&GPIO_FUNCTION); | ||
38 | or_l((1<<28),&GPIO_ENABLE); | ||
39 | return true; | ||
40 | } | ||
41 | |||
42 | void _backlight_hw_on(void) | ||
43 | { | ||
44 | |||
45 | if (_backlight_on) | ||
46 | return; | ||
47 | |||
48 | _backlight_set_brightness(_brightness); | ||
49 | _backlight_on = true; | ||
50 | |||
51 | } | ||
52 | |||
53 | void _backlight_hw_off(void) | ||
54 | { | ||
55 | /* GPIO28 low */ | ||
56 | and_l(~(1<<28),&GPIO_OUT); | ||
57 | _backlight_on = false; | ||
58 | } | ||
59 | |||
60 | void _backlight_set_brightness(int val) | ||
61 | { | ||
62 | unsigned char i; | ||
63 | |||
64 | and_l(~(1<<28),&GPIO_OUT); | ||
65 | sleep(4); | ||
66 | |||
67 | for (i=0;i<val;i++) | ||
68 | { | ||
69 | or_l((1<<28),&GPIO_OUT); | ||
70 | and_l(~(1<<28),&GPIO_OUT); | ||
71 | } | ||
72 | |||
73 | or_l((1<<28),&GPIO_OUT); | ||
74 | |||
75 | _brightness = val; | ||
76 | } | ||
77 | |||
78 | void _remote_backlight_on(void) | ||
79 | { | ||
80 | /* I don't have remote to play with */ | ||
81 | } | ||
82 | |||
83 | void _remote_backlight_off(void) | ||
84 | { | ||
85 | /* I don't have remote to play with */ | ||
86 | } | ||