firmware/target/arm/ipod/powermgmt-ipod-pcf.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
  11  * Revisions copyright (C) 2005 by Gerald Van Baren
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22
  23 #include "config.h"
  24 #include "adc.h"
  25 #include "powermgmt.h"
  26 #include "pcf5060x.h"
  27 #include "pcf50605.h"
  28 #include "audiohw.h"
  29
  30 const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
  31 {
  32 #if   defined(IPOD_NANO)
  33     3330
  34 #elif defined(IPOD_VIDEO)
  35     3500
  36 #elif defined(IPOD_COLOR)
  37     3300
  38 #elif defined(IPOD_3G)
  39     3700
  40 #else
  41     /* FIXME: calibrate value for other iPods */
  42     3300
  43 #endif
  44 };
  45
  46 const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
  47 {
  48 #if   defined(IPOD_NANO)
  49     3230
  50 #elif defined(IPOD_VIDEO)
  51     3300
  52 #elif defined(IPOD_COLOR)
  53     3300
  54 #elif defined(IPOD_3G)
  55     3500
  56 #else
  57     /* FIXME: calibrate value for other iPods */
  58     3000
  59 #endif
  60 };
  61
  62 /* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
  63 const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
  64 {
  65 #if   defined(IPOD_NANO)
  66     /* measured values */
  67     { 3230, 3620, 3700, 3730, 3750, 3780, 3830, 3890, 3950, 4030, 4160 },
  68 #elif defined(IPOD_VIDEO)
  69     /* iPod Video 30GB Li-Ion 400mAh */
  70     { 3600, 3720, 3750, 3780, 3810, 3840, 3880, 3950, 4020, 4100, 4180 },
  71 #elif defined(IPOD_COLOR)
  72     /* iPod Photo 30GB, see FS#9072 */
  73     { 3450, 3660, 3700, 3730, 3750, 3770, 3820, 3870, 3920, 4040, 4170 },
  74 #elif defined(IPOD_3G)
  75     /* iPod 3G 40GB, first approach based upon measurements */
  76     { 3720, 3740, 3760, 3780, 3830, 3870, 3910, 3970, 4020, 4060, 4090 },
  77 #else
  78     /* FIXME: calibrate value for other iPods */
  79     /* Table is "provisional" from IPOD_COLOR */
  80     { 3450, 3660, 3700, 3730, 3750, 3770, 3820, 3870, 3920, 4040, 4170 }
  81 #endif
  82 };
  83
  84 #if CONFIG_CHARGING
  85 /* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
  86 const unsigned short percent_to_volt_charge[11] =
  87 {
  88 #if   defined(IPOD_NANO)
  89     /* measured values */
  90     3230, 3620, 3700, 3730, 3750, 3780, 3830, 3890, 3950, 4030, 4160
  91 #elif defined(IPOD_VIDEO)
  92     /* iPOD Video 30GB Li-Ion 400mAh */
  93     3600, 3720, 3750, 3780, 3810, 3840, 3880, 3950, 4020, 4100, 4180
  94 #elif defined(IPOD_COLOR)
  95     /* iPod Photo 30GB, see FS#9072 */
  96     3450, 3660, 3700, 3730, 3750, 3770, 3820, 3870, 3920, 4040, 4170
  97 #elif defined(IPOD_3G)
  98     /* iPod 3G 40GB, first approach based upon measurements */
  99     3720, 3740, 3760, 3780, 3830, 3870, 3910, 3970, 4020, 4060, 4090
 100 #else
 101     /* FIXME: calibrate value for other iPods */
 102     /* Table is "provisional" from IPOD_COLOR */
 103     3450, 3660, 3700, 3730, 3750, 3770, 3820, 3870, 3920, 4040, 4170
 104 #endif
 105 };
 106 #endif /* CONFIG_CHARGING */
 107
 108 #define BATTERY_SCALE_FACTOR 6000
 109 /* full-scale ADC readout (2^10) in millivolt */
 110
 111 /* Returns battery voltage from ADC [millivolts] */
 112 unsigned int battery_adc_voltage(void)
 113 {
 114     return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 10;
 115 }
 116
 117 #ifdef HAVE_ACCESSORY_SUPPLY
 118 void accessory_supply_set(bool enable)
 119 {
 120     /* Set accessory power supply to 3.3V, otherwise switch it off. */
 121     unsigned char value = enable ? 0xf8 : 0x18;
 122
 123     /* Write to register. */
 124     pcf50605_write(PCF5060X_D2REGC1, value);
 125 }
 126 #endif
 127
 128 #ifdef HAVE_LINEOUT_POWEROFF
 129 void lineout_set(bool enable)
 130 {
 131     /* Call audio hardware driver implementation */
 132     audiohw_enable_lineout(enable);
 133 }
 134 #endif