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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 | /* * 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> /* * Power management requests */ enum { PM_SUSPEND, /* enter D1-D3 */ PM_RESUME, /* enter D0 */ PM_SAVE_STATE, /* save device's state */ /* enable wake-on */ PM_SET_WAKEUP, /* bus resource management */ PM_GET_RESOURCES, PM_SET_RESOURCES, /* base station management */ PM_EJECT, PM_LOCK, }; typedef int pm_request_t; /* * Device types */ enum { PM_UNKNOWN_DEV = 0, /* generic */ PM_SYS_DEV, /* system device (fan, KB controller, ...) */ PM_PCI_DEV, /* PCI device */ PM_USB_DEV, /* USB device */ PM_SCSI_DEV, /* SCSI device */ PM_ISA_DEV, /* ISA device */ PM_MTD_DEV, /* Memory Technology Device */ }; typedef int pm_dev_t; /* * 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; int state; int prev_state; struct list_head entry; }; #ifdef CONFIG_PM extern int pm_active; #define PM_IS_ACTIVE() (pm_active != 0) /* * Register a device with power management */ struct pm_dev *pm_register(pm_dev_t type, unsigned long id, pm_callback callback); /* * Unregister a device with power management */ void pm_unregister(struct pm_dev *dev); /* * Unregister all devices with matching callback */ void pm_unregister_all(pm_callback callback); /* * Send a request to a single device */ int pm_send(struct pm_dev *dev, pm_request_t rqst, void *data); /* * Send a request to all devices */ int pm_send_all(pm_request_t rqst, void *data); /* * Find a device */ struct pm_dev *pm_find(pm_dev_t type, struct pm_dev *from); static inline void pm_access(struct pm_dev *dev) {} static inline void pm_dev_idle(struct pm_dev *dev) {} #else /* CONFIG_PM */ #define PM_IS_ACTIVE() 0 static inline struct pm_dev *pm_register(pm_dev_t type, unsigned long id, pm_callback callback) { return 0; } static inline void pm_unregister(struct pm_dev *dev) {} static inline void pm_unregister_all(pm_callback callback) {} static inline int pm_send(struct pm_dev *dev, pm_request_t rqst, void *data) { return 0; } static inline int pm_send_all(pm_request_t rqst, void *data) { return 0; } static inline struct pm_dev *pm_find(pm_dev_t type, struct pm_dev *from) { return 0; } static inline void pm_access(struct pm_dev *dev) {} static inline void pm_dev_idle(struct pm_dev *dev) {} #endif /* CONFIG_PM */ extern void (*pm_idle)(void); extern void (*pm_power_off)(void); #endif /* __KERNEL__ */ #endif /* _LINUX_PM_H */ |