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Diffstat (limited to 'firmware/target/coldfire/mpio/hd200/powermgmt-hd200.c')
-rw-r--r--firmware/target/coldfire/mpio/hd200/powermgmt-hd200.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/firmware/target/coldfire/mpio/hd200/powermgmt-hd200.c b/firmware/target/coldfire/mpio/hd200/powermgmt-hd200.c
new file mode 100644
index 0000000000..23a0bac927
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+++ b/firmware/target/coldfire/mpio/hd200/powermgmt-hd200.c
@@ -0,0 +1,59 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id:$
9 *
10 * Copyright (C) 2010 Marcin Bukat
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 "adc.h"
24#include "powermgmt.h"
25
26const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
27{
28 3700
29};
30
31const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
32{
33 3650
34};
35
36/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
37const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
38{
39 /* from OF and measurements voltage range is 3.7-4.1 V */
40 { 3700, 3740, 3780, 3820, 3860, 3900, 3940, 3980, 4020, 4060, 4100 }
41};
42
43/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
44const unsigned short percent_to_volt_charge[11] =
45{
46 /* values measured over one full charging cycle */
47 3540, 3860, 3930, 3980, 4000, 4020, 4040, 4080, 4130, 4180, 4230 /* LiPo */
48};
49
50/* 3.33V as reference */
51#define BATTERY_SCALE_FACTOR 3330
52
53
54/* Returns battery voltage from ADC [millivolts] */
55unsigned int battery_adc_voltage(void)
56{
57 return (adc_read(ADC_BATTERY) * BATTERY_SCALE_FACTOR) >> 11;
58}
59