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
|
/*
* hp6x0 Power Management Routines
*
* Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License.
*/
#include <linux/init.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <asm/io.h>
#include <asm/hd64461.h>
#include <asm/hp6xx/hp6xx.h>
#include <asm/cpu/dac.h>
#include <asm/pm.h>
#define STBCR 0xffffff82
#define STBCR2 0xffffff88
static int hp6x0_pm_enter(suspend_state_t state)
{
u8 stbcr, stbcr2;
#ifdef CONFIG_HD64461_ENABLER
u8 scr;
u16 hd64461_stbcr;
#endif
if (state != PM_SUSPEND_MEM)
return -EINVAL;
#ifdef CONFIG_HD64461_ENABLER
outb(0, HD64461_PCC1CSCIER);
scr = inb(HD64461_PCC1SCR);
scr |= HD64461_PCCSCR_VCC1;
outb(scr, HD64461_PCC1SCR);
hd64461_stbcr = inw(HD64461_STBCR);
hd64461_stbcr |= HD64461_STBCR_SPC1ST;
outw(hd64461_stbcr, HD64461_STBCR);
#endif
ctrl_outb(0x1f, DACR);
stbcr = ctrl_inb(STBCR);
ctrl_outb(0x01, STBCR);
stbcr2 = ctrl_inb(STBCR2);
ctrl_outb(0x7f , STBCR2);
outw(0xf07f, HD64461_SCPUCR);
pm_enter();
outw(0, HD64461_SCPUCR);
ctrl_outb(stbcr, STBCR);
ctrl_outb(stbcr2, STBCR2);
#ifdef CONFIG_HD64461_ENABLER
hd64461_stbcr = inw(HD64461_STBCR);
hd64461_stbcr &= ~HD64461_STBCR_SPC1ST;
outw(hd64461_stbcr, HD64461_STBCR);
outb(0x4c, HD64461_PCC1CSCIER);
outb(0x00, HD64461_PCC1CSCR);
#endif
return 0;
}
/*
* Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk.
*/
static struct pm_ops hp6x0_pm_ops = {
.pm_disk_mode = PM_DISK_FIRMWARE,
.enter = hp6x0_pm_enter,
};
static int __init hp6x0_pm_init(void)
{
pm_set_ops(&hp6x0_pm_ops);
return 0;
}
late_initcall(hp6x0_pm_init);
|
