firmware/target/arm/rk27xx/hm60x/power-hm60x.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright © 2009 Bertrik Sikken
  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 <stdbool.h>
  22 #include "config.h"
  23 #include "inttypes.h"
  24 #include "power.h"
  25 #include "panic.h"
  26 #include "system.h"
  27 #include "usb_core.h"   /* for usb_charging_maxcurrent_change */
  28
  29 void power_off(void)
  30 {
  31     GPIO_PCCON &= ~(1<<0);
  32     while(1);
  33 }
  34
  35 void power_init(void)
  36 {
  37     GPIO_PCDR |= (1<<0);
  38     GPIO_PCCON |= (1<<0);
  39 }
  40
  41 unsigned int power_input_status(void)
  42 {
  43     unsigned int status = POWER_INPUT_NONE;
  44
  45     if (!(GPIO_PADR & 0x80))
  46         status |= POWER_INPUT_MAIN_CHARGER;
  47
  48     if (usb_detect() == USB_INSERTED)
  49         status |= POWER_INPUT_USB_CHARGER;
  50
  51     return status;
  52 }
  53
  54 bool charging_state(void)
  55 {
  56     return (bool)(!(GPIO_PADR & 0x80));
  57 }