1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright © 2009 Bertrik Sikken
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdbool.h>
#include "config.h"
#include "inttypes.h"
#include "s5l87xx.h"
#include "power.h"
#include "panic.h"
#include "pmu-target.h"
#include "usb_core.h" /* for usb_charging_maxcurrent_change */
void power_off(void)
{
pmu_ldo_on_in_standby(0, 0);
pmu_ldo_on_in_standby(1, 0);
pmu_ldo_on_in_standby(2, 0);
pmu_ldo_on_in_standby(3, 0);
pmu_ldo_on_in_standby(4, 0);
pmu_ldo_on_in_standby(5, 0);
pmu_ldo_on_in_standby(6, 0);
pmu_ldo_on_in_standby(7, 0);
pmu_set_wake_condition(0x42); /* USB inserted or EXTON1 */
pmu_enter_standby();
while(1);
}
void power_init(void)
{
pmu_write(0x1e, 0xf); /* Vcore = 1.000V */
pmu_ldo_set_voltage(2, 0x13); /* LCD = 2.800V */
}
#if CONFIG_CHARGING
#ifdef HAVE_USB_CHARGING_ENABLE
void usb_charging_maxcurrent_change(int maxcurrent)
{
bool on = (maxcurrent >= 500);
PDAT11 = (PDAT11 & ~1) | (on ? 1 : 0);
}
#endif
unsigned int power_input_status(void)
{
/* This checks if USB Vbus is present. */
if (!(PDAT14 & 0x8)) return POWER_INPUT_USB_CHARGER;
/* If USB Vbus is not present, check if we have a positive power balance
regardless. This would indicate FireWire charging. Note that this will
drop to POWER_INPUT_NONE if FireWire isn't able to supply enough current
for device operation, e.g. during disk spinup. */
if (PDAT11 & 0x20) return POWER_INPUT_NONE;
/* Looks like we have FireWire power. */
return POWER_INPUT_MAIN_CHARGER;
}
bool charging_state(void)
{
return (PDAT11 & 0x10) ? 0 : 1;
}
#endif /* CONFIG_CHARGING */
|