blob: 9eeb05072e4223dd0c94443c7d56f7a6a4da1b04 (
plain)
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
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "backlight-target.h"
#include "system.h"
#include "lcd.h"
#include "backlight.h"
#include "i2c-pp.h"
#include "as3514.h"
static unsigned short backlight_brightness = DEFAULT_BRIGHTNESS_SETTING;
void _backlight_set_brightness(int brightness)
{
backlight_brightness = brightness;
if (brightness > 0)
_backlight_on();
else
_backlight_off();
}
void _backlight_on(void)
{
#ifdef HAVE_LCD_ENABLE
lcd_enable(true); /* power on lcd */
#endif
#if defined(HAVE_LCD_SLEEP) && !defined(BOOTLOADER)
_lcd_sleep_timer = 0; /* LCD should be awake already */
#endif
pp_i2c_send(AS3514_I2C_ADDR, DCDC15, backlight_brightness);
}
void _backlight_off(void)
{
pp_i2c_send(AS3514_I2C_ADDR, DCDC15, 0x0);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false); /* power off lcd */
#endif
#if defined(HAVE_LCD_SLEEP) && !defined(BOOTLOADER)
/* Start LCD sleep countdown */
if (_lcd_sleep_timeout < 0)
{
_lcd_sleep_timer = 0; /* Setting == Always */
lcd_sleep();
}
else
_lcd_sleep_timer = _lcd_sleep_timeout;
#endif
}
void _buttonlight_on(void)
{
GPIO_SET_BITWISE(GPIOG_OUTPUT_VAL, 0x80);
#ifdef SANSA_C200
GPIO_SET_BITWISE(GPIOB_OUTPUT_VAL, 0x10); /* The "menu" backlight */
#endif
}
void _buttonlight_off(void)
{
GPIO_CLEAR_BITWISE(GPIOG_OUTPUT_VAL, 0x80);
#ifdef SANSA_C200
GPIO_CLEAR_BITWISE(GPIOB_OUTPUT_VAL, 0x10); /* The "menu" backlight */
#endif
}
|
