firmware/target/arm/samsung/power-yh82x_yh92x.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2009 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
  22 /* Created from power.c using some iPod code, and some custom stuff based on
  23    GPIO analysis
  24 */
  25
  26 #include "config.h"
  27 #include "cpu.h"
  28 #include <stdbool.h>
  29 #include "adc.h"
  30 #include "kernel.h"
  31 #include "system.h"
  32 #include "power.h"
  33 #include "logf.h"
  34 #include "usb.h"
  35
  36 void power_init(void)
  37 {
  38 }
  39
  40 unsigned int power_input_status(void)
  41 {
  42     unsigned int status = POWER_INPUT_NONE;
  43
  44     if (GPIOL_INPUT_VAL & 0x80)
  45         status = POWER_INPUT_MAIN_CHARGER;
  46
  47     if (GPIOD_INPUT_VAL & 0x10)
  48         status |= POWER_INPUT_USB_CHARGER;
  49
  50     return status;
  51 }
  52
  53 void ide_power_enable(bool on)
  54 {
  55     (void)on;
  56     /* We do nothing */
  57 }
  58
  59
  60 bool ide_powered(void)
  61 {
  62     /* pretend we are always powered - we don't turn it off */
  63     return true;
  64 }
  65
  66 void power_off(void)
  67 {
  68     /* Disable interrupts on this core */
  69     disable_interrupt(IRQ_FIQ_STATUS);
  70
  71     /* Mask them on both cores */
  72     CPU_INT_DIS = -1;
  73     COP_INT_DIS = -1;
  74
  75     while (1)
  76         DEV_RS = -1;
  77 }