firmware/target/arm/tms320dm320/mrobe-500/power-mr500.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 by Karl Kurbjun
  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 "cpu.h"
  24 #include <stdbool.h>
  25 #include "kernel.h"
  26 #include "system.h"
  27 #include "power.h"
  28 #include "lcd.h"
  29 #include "pcf50606.h"
  30 #include "backlight.h"
  31 #include "backlight-target.h"
  32 #include "lcd-remote-target.h"
  33
  34 void power_init(void)
  35 {
  36     /* Initialize IDE power pin */
  37     /* set GIO17 (ATA power) on and output */
  38     ide_power_enable(true);
  39     IO_GIO_DIR1&=~(1<<1);
  40     /* Charger detect */
  41 }
  42
  43 unsigned int power_input_status(void)
  44 {
  45         /* Charger is active low */
  46         if(!(IO_GIO_BITSET1&(1<<9)))
  47         {
  48                 return POWER_INPUT_MAIN_CHARGER;
  49         }
  50     return POWER_INPUT_NONE;
  51 }
  52
  53 /* Returns true if the unit is charging the batteries. */
  54 bool charging_state(void)
  55 {
  56     return false;
  57 }
  58
  59 void ide_power_enable(bool on)
  60 {
  61     if (on)
  62         IO_GIO_BITCLR1=(1<<1);
  63     else
  64         IO_GIO_BITSET1=(1<<1);
  65 }
  66
  67 bool ide_powered(void)
  68 {
  69     return !(IO_GIO_BITSET1&(1<<1));
  70 }
  71
  72 void power_off(void)
  73 {
  74     /* turn off backlight and wait for 1 second */
  75     _backlight_off();
  76     lcd_remote_sleep();
  77     lcd_sleep();
  78     sleep(HZ);
  79     /* Hard shutdown */
  80     IO_GIO_DIR1&=~(1<<10);
  81     IO_GIO_BITSET1|=1<<10;
  82 }