firmware/target/arm/philips/backlight-hdd.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008 by Mark Arigo
  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 #include "config.h"
  22 #include "backlight-target.h"
  23 #include "system.h"
  24 #include "backlight.h"
  25 #include "synaptics-mep.h"
  26
  27 #ifdef HAVE_BACKLIGHT_BRIGHTNESS
  28 static const int brightness_vals[16] =
  29                 {255,237,219,201,183,165,147,130,112,94,76,58,40,22,5,0};
  30
  31 void _backlight_set_brightness(int brightness)
  32 {
  33     outl(0x80000000 | (brightness_vals[brightness-1] << 16), 0x7000a000);
  34 }
  35 #endif
  36
  37 void _backlight_on(void)
  38 {
  39     GPO32_VAL    &= ~0x1000000;
  40     GPO32_ENABLE &= ~0x1000000;
  41 }
  42
  43 void _backlight_off(void)
  44 {
  45     GPO32_VAL    |= 0x1000000;
  46     GPO32_ENABLE |= 0x1000000;
  47 }
  48
  49 #ifdef HAVE_BUTTON_LIGHT
  50 #define BUTTONLIGHT_MASK 0x7f
  51 static unsigned short buttonight_brightness = DEFAULT_BRIGHTNESS_SETTING - 1;
  52 static unsigned short buttonlight_status = 0;
  53
  54 void _buttonlight_on(void)
  55 {
  56     if (!buttonlight_status)
  57     {
  58         touchpad_set_buttonlights(BUTTONLIGHT_MASK, buttonight_brightness);
  59         buttonlight_status = 1;
  60     }
  61 }
  62
  63 void _buttonlight_off(void)
  64 {
  65     if (buttonlight_status)
  66     {
  67         touchpad_set_buttonlights(BUTTONLIGHT_MASK, 0);
  68         buttonlight_status = 0;
  69     }
  70 }
  71
  72 void _buttonlight_set_brightness(int brightness)
  73 {
  74     buttonight_brightness = brightness - 1;
  75     touchpad_set_buttonlights(BUTTONLIGHT_MASK, buttonight_brightness);
  76     buttonlight_status = 1;
  77 }
  78 #endif