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author | Bertrik Sikken <bertrik@sikken.nl> | 2009-07-29 20:42:02 +0000 |
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committer | Bertrik Sikken <bertrik@sikken.nl> | 2009-07-29 20:42:02 +0000 |
commit | 2fb73842a9b51e554a3a14feb0b4c0814c82ebec (patch) | |
tree | 25a93a7b725a5a2f6fa59929f7952fd8ccd7fcb0 /firmware/target/arm/s5l8700/yps3/power-yps3.c | |
parent | e30f1e83c495727d2ecd108c225499c79e467ca8 (diff) | |
download | rockbox-2fb73842a9b51e554a3a14feb0b4c0814c82ebec.tar.gz rockbox-2fb73842a9b51e554a3a14feb0b4c0814c82ebec.zip |
Start of a Rockbox port to the Samsung YP-S3.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22085 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/s5l8700/yps3/power-yps3.c')
-rw-r--r-- | firmware/target/arm/s5l8700/yps3/power-yps3.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/firmware/target/arm/s5l8700/yps3/power-yps3.c b/firmware/target/arm/s5l8700/yps3/power-yps3.c new file mode 100644 index 0000000000..784a5a9629 --- /dev/null +++ b/firmware/target/arm/s5l8700/yps3/power-yps3.c | |||
@@ -0,0 +1,95 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright © 2009 Bertrik Sikken | ||
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 | #include "config.h" | ||
23 | #include "s5l8700.h" | ||
24 | #include "power.h" | ||
25 | |||
26 | /* Power handling for the S5L8700 based Samsung YP-S3 | ||
27 | |||
28 | Pins involved in with power management: | ||
29 | * P1.1: USB power detect | ||
30 | * P4.7: tuner power/enable | ||
31 | * P5.2: unknown output | ||
32 | * P5.3: unknown output, related to charging (perhaps charge current?) | ||
33 | * P5.4: charge status input (only valid if charger enabled) | ||
34 | * P5.6: charger enable | ||
35 | */ | ||
36 | |||
37 | void power_off(void) | ||
38 | { | ||
39 | /* don't know how to do this yet */ | ||
40 | } | ||
41 | |||
42 | void power_init(void) | ||
43 | { | ||
44 | /* configure pin P1.1 as input for USB power detect */ | ||
45 | PCON1 = (PCON1 & ~0x000000F0) | 0x00000000; | ||
46 | |||
47 | /* enable tuner power pin on P4.7 and turn power off */ | ||
48 | PCON4 = (PCON4 & ~0xF0000000) | 0x10000000; | ||
49 | PDAT4 &= ~(1 << 7); | ||
50 | |||
51 | /* configure pins P5.2 / P5.3 / P5.6 as output, P5.4 as input */ | ||
52 | PCON5 = (PCON5 & ~0x0F0FFF00) | 0x01001100; | ||
53 | PDAT5 &= ~((1 << 2) | (1 << 3) | (1 << 6)); | ||
54 | } | ||
55 | |||
56 | #if CONFIG_CHARGING | ||
57 | unsigned int power_input_status(void) | ||
58 | { | ||
59 | /* check USB power on P1.1 */ | ||
60 | if (PDAT1 & (1 << 1)) { | ||
61 | return POWER_INPUT_USB; | ||
62 | } | ||
63 | |||
64 | return POWER_INPUT_NONE; | ||
65 | } | ||
66 | |||
67 | bool charging_state(void) | ||
68 | { | ||
69 | if (PDAT5 & (1 << 6)) { | ||
70 | /* charger is enabled, check if charging is busy */ | ||
71 | return (PDAT5 & (1 << 4)); | ||
72 | } | ||
73 | return false; | ||
74 | } | ||
75 | #endif /* CONFIG_CHARGING */ | ||
76 | |||
77 | #if CONFIG_TUNER | ||
78 | bool tuner_power(bool status) | ||
79 | { | ||
80 | if (status) { | ||
81 | PDAT4 |= (1 << 7); | ||
82 | } | ||
83 | else { | ||
84 | PDAT4 &= ~(1 << 7); | ||
85 | } | ||
86 | /* TODO what should we return here? */ | ||
87 | return status; | ||
88 | } | ||
89 | |||
90 | bool tuner_powered(void) | ||
91 | { | ||
92 | return (PDAT4 & (1 << 7)); | ||
93 | } | ||
94 | #endif /* CONFIG_TUNER */ | ||
95 | |||