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-rw-r--r--firmware/target/coldfire/iriver/h100/powermgmt-h100.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/firmware/target/coldfire/iriver/h100/powermgmt-h100.c b/firmware/target/coldfire/iriver/h100/powermgmt-h100.c
new file mode 100644
index 0000000000..5b3c297715
--- /dev/null
+++ b/firmware/target/coldfire/iriver/h100/powermgmt-h100.c
@@ -0,0 +1,58 @@
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 * All files in this archive are subject to the GNU General Public License.
14 * See the file COPYING in the source tree root for full license agreement.
15 *
16 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
17 * KIND, either express or implied.
18 *
19 ****************************************************************************/
20
21#include "config.h"
22#include "adc.h"
23#include "powermgmt.h"
24
25const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
26{
27 3380
28};
29
30const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
31{
32 3020
33};
34
35/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
36const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
37{
38 /* Below 3370 the backlight starts flickering during HD access */
39 { 3370, 3650, 3700, 3740, 3780, 3820, 3870, 3930, 4000, 4080, 4160 }
40};
41
42/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
43const unsigned short percent_to_volt_charge[11] =
44{
45 /* values measured over one full charging cycle */
46 3540, 3860, 3930, 3980, 4000, 4020, 4040, 4080, 4130, 4180, 4230 /* LiPo */
47};
48
49/* FIX: this value is picked at random */
50#define BATTERY_SCALE_FACTOR 4266
51/* full-scale ADC readout (2^8) in millivolt */
52
53/* Returns battery voltage from ADC [millivolts] */
54unsigned int battery_adc_voltage(void)
55{
56 return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 8;
57}
58