http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/pm.h

/* * pm.h - Power management interface * * Copyright (C) 2000 Andrew Henroid * * 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 program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_PM_H #define _LINUX_PM_H #ifdef __KERNEL__ #include <linux/config.h> #include <linux/list.h> #include <asm/atomic.h> /* * Power management requests... these are passed to pm_send_all() and friends. * * these functions are old and deprecated, see below. */ typedef int __bitwise pm_request_t; #define PM_SUSPEND ((__force pm_request_t) 1) /* enter D1-D3 */ #define PM_RESUME ((__force pm_request_t) 2) /* enter D0 */ /* * Device types... these are passed to pm_register */ typedef int __bitwise pm_dev_t; #define PM_UNKNOWN_DEV ((__force pm_dev_t) 0) /* generic */ #define PM_SYS_DEV ((__force pm_dev_t) 1) /* system device (fan, KB controller, ...) */ #define PM_PCI_DEV ((__force pm_dev_t) 2) /* PCI device */ #define PM_USB_DEV ((__force pm_dev_t) 3) /* USB device */ #define PM_SCSI_DEV ((__force pm_dev_t) 4) /* SCSI device */ #define PM_ISA_DEV ((__force pm_dev_t) 5) /* ISA device */ #define PM_MTD_DEV ((__force pm_dev_t) 6) /* Memory Technology Device */ /* * System device hardware ID (PnP) values */ enum { PM_SYS_UNKNOWN = 0x00000000, /* generic */ PM_SYS_KBC = 0x41d00303, /* keyboard controller */ PM_SYS_COM = 0x41d00500, /* serial port */ PM_SYS_IRDA = 0x41d00510, /* IRDA controller */ PM_SYS_FDC = 0x41d00700, /* floppy controller */ PM_SYS_VGA = 0x41d00900, /* VGA controller */ PM_SYS_PCMCIA = 0x41d00e00, /* PCMCIA controller */ }; /* * Device identifier */ #define PM_PCI_ID(dev) ((dev)->bus->number << 16 | (dev)->devfn) /* * Request handler callback */ struct pm_dev; typedef int (*pm_callback)(struct pm_dev *dev, pm_request_t rqst, void *data); /* * Dynamic device information */ struct pm_dev { pm_dev_t type; unsigned long id; pm_callback callback; void *data; unsigned long flags; unsigned long state; unsigned long prev_state; struct list_head entry; }; /* Functions above this comment are list-based old-style power * managment. Please avoid using them. */ /* * Callbacks for platform drivers to implement. */ extern void (*pm_idle)(void); extern void (*pm_power_off)(void); typedef int __bitwise suspend_state_t; #define PM_SUSPEND_ON ((__force suspend_state_t) 0) #define PM_SUSPEND_STANDBY ((__force suspend_state_t) 1) #define PM_SUSPEND_MEM ((__force suspend_state_t) 3) #define PM_SUSPEND_DISK ((__force suspend_state_t) 4) #define PM_SUSPEND_MAX ((__force suspend_state_t) 5) typedef int __bitwise suspend_disk_method_t; #define PM_DISK_FIRMWARE ((__force suspend_disk_method_t) 1) #define PM_DISK_PLATFORM ((__force suspend_disk_method_t) 2) #define PM_DISK_SHUTDOWN ((__force suspend_disk_method_t) 3) #define PM_DISK_REBOOT ((__force suspend_disk_method_t) 4) #define PM_DISK_MAX ((__force suspend_disk_method_t) 5) struct pm_ops { suspend_disk_method_t pm_disk_mode; int (*valid)(suspend_state_t state); int (*prepare)(suspend_state_t state); int (*enter)(suspend_state_t state); int (*finish)(suspend_state_t state); }; extern void pm_set_ops(struct pm_ops *); extern struct pm_ops *pm_ops; extern int pm_suspend(suspend_state_t state); /* * Device power management */ struct device; typedef struct pm_message { int event; } pm_message_t; /* * There are 4 important states driver can be in: * ON -- driver is working * FREEZE -- stop operations and apply whatever policy is applicable to a * suspended driver of that class, freeze queues for block like IDE * does, drop packets for ethernet, etc... stop DMA engine too etc... * so a consistent image can be saved; but do not power any hardware * down. * SUSPEND - like FREEZE, but hardware is doing as much powersaving as * possible. Roughly pci D3. * * Unfortunately, current drivers only recognize numeric values 0 (ON) and 3 * (SUSPEND). We'll need to fix the drivers. So yes, putting 3 to all different * defines is intentional, and will go away as soon as drivers are fixed. Also * note that typedef is neccessary, we'll probably want to switch to * typedef struct pm_message_t { int event; int flags; } pm_message_t * or something similar soon. */ #define PM_EVENT_ON 0 #define PM_EVENT_FREEZE 1 #define PM_EVENT_SUSPEND 2 #define PMSG_FREEZE ((struct pm_message){ .event = PM_EVENT_FREEZE, }) #define PMSG_SUSPEND ((struct pm_message){ .event = PM_EVENT_SUSPEND, }) #define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, }) struct dev_pm_info { pm_message_t power_state; unsigned can_wakeup:1; #ifdef CONFIG_PM unsigned should_wakeup:1; pm_message_t prev_state; void * saved_state; struct device * pm_parent; struct list_head entry; #endif }; extern void device_pm_set_parent(struct device * dev, struct device * parent); extern int device_power_down(pm_message_t state); extern void device_power_up(void); extern void device_resume(void); #ifdef CONFIG_PM extern int device_suspend(pm_message_t state); #define device_set_wakeup_enable(dev,val) \ ((dev)->power.should_wakeup = !!(val)) #define device_may_wakeup(dev) \ (device_can_wakeup(dev) && (dev)->power.should_wakeup) extern int dpm_runtime_suspend(struct device *, pm_message_t); extern void dpm_runtime_resume(struct device *); #else /* !CONFIG_PM */ static inline int device_suspend(pm_message_t state) { return 0; } #define device_set_wakeup_enable(dev,val) do{}while(0) #define device_may_wakeup(dev) (0) static inline int dpm_runtime_suspend(struct device * dev, pm_message_t state) { return 0; } static inline void dpm_runtime_resume(struct device * dev) { } #endif /* changes to device_may_wakeup take effect on the next pm state change. * by default, devices should wakeup if they can. */ #define device_can_wakeup(dev) \ ((dev)->power.can_wakeup) #define device_init_wakeup(dev,val) \ do { \ device_can_wakeup(dev) = !!(val); \ device_set_wakeup_enable(dev,val); \ } while(0) #endif /* __KERNEL__ */ #endif /* _LINUX_PM_H */