firmware/target/arm/tcc77x/iaudio7/power-iaudio7.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008 Vitja Makarov
  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
  23 #include "config.h"
  24 #include "cpu.h"
  25 #include "kernel.h"
  26 #include "system.h"
  27 #include "power.h"
  28 #include "backlight-target.h"
  29
  30 #include "pcf50606.h"
  31
  32 void power_init(void)
  33 {
  34     pcf50606_write(PCF5060X_DCDC1, 0x90);
  35     pcf50606_write(PCF5060X_DCDC2, 0x48);
  36     pcf50606_write(PCF5060X_DCDC3, 0xfc);
  37     pcf50606_write(PCF5060X_DCDC4, 0xb1);
  38
  39     pcf50606_write(PCF5060X_IOREGC, 0xe9);
  40     /* 3.3V, touch-panel */
  41     pcf50606_write(PCF5060X_D1REGC1, 0xf8);
  42     pcf50606_write(PCF5060X_D2REGC1, 0xf2);
  43     pcf50606_write(PCF5060X_D3REGC1, 0xf5);
  44
  45     pcf50606_write(PCF5060X_LPREGC1, 0x00);
  46     pcf50606_write(PCF5060X_LPREGC2, 0x02);
  47
  48     pcf50606_write(PCF5060X_DCUDC1, 0xe6);
  49     pcf50606_write(PCF5060X_DCUDC2, 0x30);
  50
  51     pcf50606_write(PCF5060X_DCDEC1, 0xe7);
  52     pcf50606_write(PCF5060X_DCDEC2, 0x02);
  53
  54     pcf50606_write(PCF5060X_INT1M, 0x5b);
  55     pcf50606_write(PCF5060X_INT1M, 0xaf);
  56     pcf50606_write(PCF5060X_INT1M, 0x8f);
  57
  58     pcf50606_write(PCF5060X_OOCC1, 0x40);
  59     pcf50606_write(PCF5060X_OOCC2, 0x05);
  60
  61     pcf50606_write(PCF5060X_MBCC3, 0x3a);
  62     pcf50606_write(PCF5060X_GPOC1, 0x00);
  63     pcf50606_write(PCF5060X_BBCC, 0xf8);
  64 }
  65
  66 /* Control leds on ata2501 board */
  67 void power_touch_panel(bool on)
  68 {
  69     if (on)
  70         pcf50606_write(PCF5060X_D1REGC1, 0xf8);
  71     else
  72         pcf50606_write(PCF5060X_D1REGC1, 0x00);
  73 }
  74
  75 void ide_power_enable(bool on)
  76 {
  77     (void) on;
  78 }
  79
  80 bool ide_powered(void)
  81 {
  82     return true;
  83 }
  84
  85 void power_off(void)
  86 {
  87     /* Forcibly cut power to SoC & peripherals by putting the PCF to sleep */
  88     pcf50606_write(PCF5060X_OOCC1, GOSTDBY | CHGWAK | EXTONWAK);
  89 }
  90
  91 #if CONFIG_TUNER
  92 #include "tuner.h"
  93
  94 /** Tuner **/
  95 static bool powered = false;
  96
  97 #define TUNNER_CLK  (1 << 5)
  98 #define TUNNER_DATA (1 << 6)
  99 #define TUNNER_NR_W (1 << 7)
 100
 101 bool tuner_power(bool status)
 102 {
 103     bool old_status;
 104     lv24020lp_lock();
 105
 106     old_status = powered;
 107
 108     if (status != old_status)
 109     {
 110         if (status)
 111         {
 112             /* When power up, host should initialize the 3-wire bus
 113                in host read mode: */
 114
 115             /* 1. Set direction of the DATA-line to input-mode. */
 116             GPIOA_DIR &= ~TUNNER_DATA;
 117
 118             /* 2. Drive NR_W low */
 119             GPIOA &= ~TUNNER_NR_W;
 120             GPIOA_DIR |= TUNNER_NR_W;
 121
 122             /* 3. Drive CLOCK high */
 123             GPIOA |= TUNNER_CLK;
 124             GPIOA_DIR |= TUNNER_CLK;
 125
 126             lv24020lp_power(true);
 127         }
 128         else
 129         {
 130             lv24020lp_power(false);
 131
 132             /* set all as inputs */
 133             GPIOC_DIR &= ~(TUNNER_CLK | TUNNER_DATA | TUNNER_NR_W);
 134         }
 135
 136         powered = status;
 137     }
 138
 139     lv24020lp_unlock();
 140     return old_status;
 141 }
 142
 143 #endif /* CONFIG_TUNER */
 144
 145 unsigned int power_input_status(void)
 146 {
 147     return (GPIOA & 0x1) ?
 148         POWER_INPUT_MAIN_CHARGER : POWER_INPUT_NONE;
 149 }