firmware/target/arm/iriver/h10/backlight-h10.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 by Barry Wardell
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include "config.h"
  20 #include "cpu.h"
  21 #include "system.h"
  22 #include "backlight.h"
  23 #include "lcd.h"
  24
  25 void _backlight_on(void)
  26 {
  27 #ifdef HAVE_LCD_SLEEP
  28     backlight_lcd_sleep_countdown(false); /* stop counter */
  29 #endif
  30 #ifdef HAVE_LCD_ENABLE
  31     lcd_enable(true); /* power on lcd + visible display */
  32 #endif
  33     GPIO_SET_BITWISE(GPIOL_OUTPUT_VAL, 0x20);
  34 }
  35
  36 void _backlight_off(void)
  37 {
  38     GPIO_CLEAR_BITWISE(GPIOL_OUTPUT_VAL, 0x20);
  39 #ifdef HAVE_LCD_ENABLE
  40     lcd_enable(false); /* power off visible display */
  41 #endif
  42 #ifdef HAVE_LCD_SLEEP
  43     backlight_lcd_sleep_countdown(true); /* start countdown */
  44 #endif
  45 }