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Diffstat (limited to 'firmware/target/sh/archos/fm_v2/backlight-target.h')
-rw-r--r--firmware/target/sh/archos/fm_v2/backlight-target.h51
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diff --git a/firmware/target/sh/archos/fm_v2/backlight-target.h b/firmware/target/sh/archos/fm_v2/backlight-target.h
deleted file mode 100644
index c3dd395eca..0000000000
--- a/firmware/target/sh/archos/fm_v2/backlight-target.h
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@@ -1,51 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2007 by Jens Arnold
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#ifndef BACKLIGHT_TARGET_H
22#define BACKLIGHT_TARGET_H
23
24#include "config.h"
25#include "rtc.h"
26
27#define backlight_hw_init() true
28
29static inline void backlight_hw_on(void)
30{
31 rtc_write(0x13, 0x10); /* 32 kHz square wave */
32 rtc_write(0x0a, rtc_read(0x0a) | 0x40); /* Enable square wave */
33}
34
35static inline void backlight_hw_off(void)
36{
37 /* While on, backlight is flashing at 32 kHz. If the square wave output
38 is disabled while the backlight is lit, it will become constantly lit,
39 (brighter) and slowly fade. This resets the square wave counter and
40 results in the unlit state */
41 unsigned char rtc_0a = rtc_read(0x0a) & ~0x40;
42 rtc_write(0x0a, rtc_0a); /* Disable square wave */
43 rtc_write(0x13, 0xF0); /* 1 Hz square wave */
44 rtc_write(0x0a, rtc_0a | 0x40); /* Enable square wave */
45
46 /* When the square wave output is disabled in the unlit state,
47 the backlight stays off */
48 rtc_write(0x0a, rtc_0a);
49}
50
51#endif