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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Linus Nielsen Feltzing
*
* 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 "config.h"
#include "cpu.h"
#include <stdbool.h>
#include "adc.h"
#include "kernel.h"
#include "system.h"
#include "power.h"
#include "usb.h"
bool charger_enabled;
void power_init(void)
{
PBCR2 &= ~0x0c00; /* GPIO for PB5 */
or_b(0x20, &PBIORL); /* Set charging control bit to output */
charger_enable(false); /* Default to charger OFF */
}
bool charger_inserted(void)
{
/* Recorder */
return adc_read(ADC_EXT_POWER) > 0x100;
}
void charger_enable(bool on)
{
if(on)
{
and_b(~0x20, &PBDRL);
charger_enabled = 1;
}
else
{
or_b(0x20, &PBDRL);
charger_enabled = 0;
}
}
void ide_power_enable(bool on)
{
bool touched = false;
if(on)
{
or_b(0x20, &PADRL);
touched = true;
}
#ifdef HAVE_ATA_POWER_OFF
if(!on)
{
and_b(~0x20, &PADRL);
touched = true;
}
#endif /* HAVE_ATA_POWER_OFF */
/* late port preparation, else problems with read/modify/write
of other bits on same port, while input and floating high */
if (touched)
{
or_b(0x20, &PAIORL); /* PA5 is an output */
PACR2 &= 0xFBFF; /* GPIO for PA5 */
}
}
bool ide_powered(void)
{
#ifdef HAVE_ATA_POWER_OFF
if ((PACR2 & 0x0400) || !(PAIORL & 0x20)) /* not configured for output */
return true; /* would be floating high, disk on */
else
return (PADRL & 0x20) != 0;
#else /* !defined(NEEDS_ATA_POWER_ON) && !defined(HAVE_ATA_POWER_OFF) */
return true; /* pretend always powered if not controlable */
#endif
}
void power_off(void)
{
disable_irq();
and_b(~0x10, &PBDRL);
or_b(0x10, &PBIORL);
while(1);
}
|
