| /* |
| * 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); |