firmware/target/arm/s5l8700/ipodnano2g/power-nano2g.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 "s5l8700.h"
  25 #include "power.h"
  26 #include "panic.h"
  27 #include "pmu-target.h"
  28 #include "usb_core.h"   /* for usb_charging_maxcurrent_change */
  29
  30 void power_off(void)
  31 {
  32     pmu_ldo_on_in_standby(0, 0);
  33     pmu_ldo_on_in_standby(1, 0);
  34     pmu_ldo_on_in_standby(2, 0);
  35     pmu_ldo_on_in_standby(3, 0);
  36     pmu_ldo_on_in_standby(4, 0);
  37     pmu_ldo_on_in_standby(5, 0);
  38     pmu_ldo_on_in_standby(6, 0);
  39     pmu_ldo_on_in_standby(7, 0);
  40     pmu_set_wake_condition(0x42); /* USB inserted or EXTON1 */
  41     pmu_enter_standby();
  42
  43     while(1);
  44 }
  45
  46 void power_init(void)
  47 {
  48     pmu_write(0x1e, 0xf);         /* Vcore = 1.000V */
  49     pmu_ldo_set_voltage(2, 0x13); /* LCD   = 2.800V */
  50 }
  51
  52 #if CONFIG_CHARGING
  53
  54 #ifdef HAVE_USB_CHARGING_ENABLE
  55 void usb_charging_maxcurrent_change(int maxcurrent)
  56 {
  57     bool on = (maxcurrent >= 500);
  58     PDAT11 = (PDAT11 & ~1) | (on ? 1 : 0);
  59 }
  60 #endif
  61
  62 unsigned int power_input_status(void)
  63 {
  64     return (PDAT14 & 8) ? POWER_INPUT_NONE : POWER_INPUT_MAIN_CHARGER;
  65 }
  66
  67 bool charging_state(void)
  68 {
  69     return (PDAT11 & 0x10) ? false : true;
  70 }
  71 #endif /* CONFIG_CHARGING */