firmware/target/arm/philips/power-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
  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 "logf.h"
  29 #include "usb.h"
  30 #include "synaptics-mep.h"
  31
  32 void power_init(void)
  33 {
  34     /* power off bit */
  35     GPIOB_ENABLE |= 0x80;
  36     GPIOB_OUTPUT_VAL |= 0x80;
  37     GPIOB_OUTPUT_EN |= 0x80;
  38
  39     /* charger inserted bit */
  40     GPIOE_ENABLE |= 0x20;
  41     GPIOE_INPUT_VAL |= 0x20;
  42
  43 #if CONFIG_TUNER
  44     /* fm antenna? */
  45     GPIOE_ENABLE |= 0x40;
  46     GPIOE_OUTPUT_EN |= 0x40;
  47     GPIOE_OUTPUT_VAL &= ~0x40; /* off */
  48 #endif
  49
  50 #ifndef BOOTLOADER
  51     /* enable touchpad here because we need it for
  52        both buttons and button lights */
  53     GPO32_ENABLE     |=  0x80;
  54     GPO32_VAL        &= ~0x80;
  55     udelay(1000);
  56
  57     GPIOD_ENABLE |= 0x80;          /* enable ACK */
  58     GPIOA_ENABLE |= (0x10 | 0x20); /* enable DATA, CLK */
  59
  60     GPIOD_OUTPUT_EN  |=  0x80; /* set ACK */
  61     GPIOD_OUTPUT_VAL |=  0x80; /*    high */
  62
  63     GPIOA_OUTPUT_EN  &= ~0x20; /* CLK */
  64
  65     GPIOA_OUTPUT_EN  |=  0x10; /* set DATA */
  66     GPIOA_OUTPUT_VAL |=  0x10; /*     high */
  67
  68     if (!touchpad_init())
  69     {
  70         logf("touchpad not ready");
  71     }
  72 #endif
  73 }
  74
  75 unsigned int power_input_status(void)
  76 {
  77     unsigned int status = POWER_INPUT_NONE;
  78
  79     /* AC charger */
  80     if (GPIOE_INPUT_VAL & 0x20)
  81         status |= POWER_INPUT_MAIN_CHARGER;
  82
  83     /* Do nothing with USB for now
  84     if (GPIOE_INPUT_VAL & 0x4)
  85         status |= POWER_INPUT_USB_CHARGER;
  86     */
  87
  88     return status;
  89 }
  90
  91 void ide_power_enable(bool on)
  92 {
  93     (void)on;
  94     /* We do nothing */
  95 }
  96
  97 bool ide_powered(void)
  98 {
  99     /* pretend we are always powered - we don't turn it off */
 100     return true;
 101 }
 102
 103 void power_off(void)
 104 {
 105     /* power off bit */
 106     GPIOB_ENABLE |= 0x80;
 107     GPIOB_OUTPUT_VAL &= ~0x80;
 108     GPIOB_OUTPUT_EN |= 0x80;
 109 }
 110
 111 #if CONFIG_TUNER
 112 bool tuner_power(bool status)
 113 {
 114     if (status)
 115         GPIOE_OUTPUT_VAL |= 0x40;
 116     else
 117         GPIOE_OUTPUT_VAL &= ~0x40;
 118
 119     return status;
 120 }
 121 #endif