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Diffstat (limited to 'firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c')
-rw-r--r--firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c80
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diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c b/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c
new file mode 100644
index 0000000000..9deab7712a
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+++ b/firmware/target/mips/ingenic_jz47xx/onda_vx767/backlight-ondavx767.c
@@ -0,0 +1,80 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2008 by Maurus Cuelenaere
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 "jz4740.h"
24#include "backlight-target.h"
25
26#define GPIO_PWM 123
27#define PWM_CHN 7
28#define PWM_FULL 101
29
30static void set_backlight(int unk, int val)
31{
32 if(val == 0)
33 __gpio_as_pwm7();
34 else
35 {
36 REG_TCU_TCSR(7) |= 2;
37 REG_TCU_TCSR(7) &= ~0x100;
38 int tmp;
39 tmp = (unk/2 + __cpm_get_rtcclk()) / unk;
40 if(tmp > 0xFFFF)
41 tmp = 0xFFFF;
42
43 __tcu_set_half_data(7, (tmp * unk * 1374389535) >> 5);
44 __tcu_set_full_data(7, tmp);
45
46 REG_TCU_TSCR = (1 << 7);
47 REG_TCU_TESR = (1 << 7);
48
49 __tcu_enable_pwm_output(7);
50 }
51 __tcu_set_count(7, 0);
52}
53
54bool _backlight_init(void)
55{
56 __gpio_as_pwm7();
57
58 __tcu_stop_counter(7);
59 __tcu_disable_pwm_output(7);
60
61 set_backlight(300, 7);
62
63 return true;
64}
65void _backlight_on(void)
66{
67 set_backlight(300, 7);
68}
69void _backlight_off(void)
70{
71 set_backlight(300, 0);
72}
73
74#ifdef HAVE_BACKLIGHT_BRIGHTNESS
75void _backlight_set_brightness(int brightness)
76{
77 (void)brightness;
78 return;
79}
80#endif