diff options
Diffstat (limited to 'firmware/target/arm/imx31/gigabeat-s/powermgmt-imx31.c')
-rw-r--r-- | firmware/target/arm/imx31/gigabeat-s/powermgmt-imx31.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/firmware/target/arm/imx31/gigabeat-s/powermgmt-imx31.c b/firmware/target/arm/imx31/gigabeat-s/powermgmt-imx31.c new file mode 100644 index 0000000000..7441100a7d --- /dev/null +++ b/firmware/target/arm/imx31/gigabeat-s/powermgmt-imx31.c | |||
@@ -0,0 +1,60 @@ | |||
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 | /* FIXME: This is just the Gigabeat F/X file with a different name... */ | ||
22 | |||
23 | #include "config.h" | ||
24 | #include "adc.h" | ||
25 | #include "powermgmt.h" | ||
26 | |||
27 | const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] = | ||
28 | { | ||
29 | 3450 | ||
30 | }; | ||
31 | |||
32 | const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] = | ||
33 | { | ||
34 | 3400 | ||
35 | }; | ||
36 | |||
37 | /* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */ | ||
38 | const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] = | ||
39 | { | ||
40 | /* Toshiba Gigabeat Li Ion 830mAH figured from discharge curve */ | ||
41 | { 3480, 3550, 3590, 3610, 3630, 3650, 3700, 3760, 3800, 3910, 3990 }, | ||
42 | }; | ||
43 | |||
44 | /* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */ | ||
45 | const unsigned short percent_to_volt_charge[11] = | ||
46 | { | ||
47 | /* Toshiba Gigabeat Li Ion 830mAH */ | ||
48 | 3480, 3550, 3590, 3610, 3630, 3650, 3700, 3760, 3800, 3910, 3990 | ||
49 | }; | ||
50 | |||
51 | /* ADC[0] is (530) at discharge and 625 at full charge */ | ||
52 | #define BATTERY_SCALE_FACTOR 6605 | ||
53 | /* full-scale ADC readout (2^10) in millivolt */ | ||
54 | |||
55 | /* Returns battery voltage from ADC [millivolts] */ | ||
56 | unsigned int battery_adc_voltage(void) | ||
57 | { | ||
58 | return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 10; | ||
59 | } | ||
60 | |||