3aa770e797
This adds some simple PM stubs and the basic APM interfaces, primarily for use by hp6xx, where the existing userland expects it. Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
89 lines
1.7 KiB
C
89 lines
1.7 KiB
C
/*
|
|
* 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/config.h>
|
|
#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);
|