include/linux/acpi.h

   1 /*
   2  * acpi.h - ACPI Interface
   3  *
   4  * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
   5  *
   6  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  23  */
  24
  25 #ifndef _LINUX_ACPI_H
  26 #define _LINUX_ACPI_H
  27
  28 #include <linux/ioport.h>       /* for struct resource */
  29
  30 #ifdef  CONFIG_ACPI
  31
  32 #ifndef _LINUX
  33 #define _LINUX
  34 #endif
  35
  36 #include <linux/list.h>
  37 #include <linux/mod_devicetable.h>
  38
  39 #include <acpi/acpi.h>
  40 #include <acpi/acpi_bus.h>
  41 #include <acpi/acpi_drivers.h>
  42 #include <acpi/acpi_numa.h>
  43 #include <asm/acpi.h>
  44 #include <linux/dmi.h>
  45
  46
  47 enum acpi_irq_model_id {
  48         ACPI_IRQ_MODEL_PIC = 0,
  49         ACPI_IRQ_MODEL_IOAPIC,
  50         ACPI_IRQ_MODEL_IOSAPIC,
  51         ACPI_IRQ_MODEL_PLATFORM,
  52         ACPI_IRQ_MODEL_COUNT
  53 };
  54
  55 extern enum acpi_irq_model_id   acpi_irq_model;
  56
  57 enum acpi_interrupt_id {
  58         ACPI_INTERRUPT_PMI      = 1,
  59         ACPI_INTERRUPT_INIT,
  60         ACPI_INTERRUPT_CPEI,
  61         ACPI_INTERRUPT_COUNT
  62 };
  63
  64 #define ACPI_SPACE_MEM          0
  65
  66 enum acpi_address_range_id {
  67         ACPI_ADDRESS_RANGE_MEMORY = 1,
  68         ACPI_ADDRESS_RANGE_RESERVED = 2,
  69         ACPI_ADDRESS_RANGE_ACPI = 3,
  70         ACPI_ADDRESS_RANGE_NVS  = 4,
  71         ACPI_ADDRESS_RANGE_COUNT
  72 };
  73
  74
  75 /* Table Handlers */
  76
  77 typedef int (*acpi_table_handler) (struct acpi_table_header *table);
  78
  79 typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
  80
  81 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
  82 void __acpi_unmap_table(char *map, unsigned long size);
  83 int early_acpi_boot_init(void);
  84 int acpi_boot_init (void);
  85 int acpi_boot_table_init (void);
  86 int acpi_mps_check (void);
  87 int acpi_numa_init (void);
  88
  89 int acpi_table_init (void);
  90 int acpi_table_parse (char *id, acpi_table_handler handler);
  91 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  92         int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  93 int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  94 int acpi_parse_mcfg (struct acpi_table_header *header);
  95 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  96
  97 /* the following four functions are architecture-dependent */
  98 void acpi_numa_slit_init (struct acpi_table_slit *slit);
  99 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 100 void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 101 void acpi_numa_arch_fixup(void);
 102
 103 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 104 /* Arch dependent functions for cpu hotplug support */
 105 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 106 int acpi_unmap_lsapic(int cpu);
 107 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 108
 109 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 110 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 111 void acpi_irq_stats_init(void);
 112 extern u32 acpi_irq_handled;
 113
 114 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 115 extern int pci_mmcfg_config_num;
 116
 117 extern int sbf_port;
 118 extern unsigned long acpi_realmode_flags;
 119
 120 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 121 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 122
 123 #ifdef CONFIG_X86_IO_APIC
 124 extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
 125 #else
 126 #define acpi_get_override_irq(bus, trigger, polarity) (-1)
 127 #endif
 128 /*
 129  * This function undoes the effect of one call to acpi_register_gsi().
 130  * If this matches the last registration, any IRQ resources for gsi
 131  * are freed.
 132  */
 133 void acpi_unregister_gsi (u32 gsi);
 134
 135 struct pci_dev;
 136
 137 int acpi_pci_irq_enable (struct pci_dev *dev);
 138 void acpi_penalize_isa_irq(int irq, int active);
 139
 140 void acpi_pci_irq_disable (struct pci_dev *dev);
 141
 142 struct acpi_pci_driver {
 143         struct acpi_pci_driver *next;
 144         int (*add)(acpi_handle handle);
 145         void (*remove)(acpi_handle handle);
 146 };
 147
 148 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 149 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 150
 151 extern int ec_read(u8 addr, u8 *val);
 152 extern int ec_write(u8 addr, u8 val);
 153 extern int ec_transaction(u8 command,
 154                           const u8 *wdata, unsigned wdata_len,
 155                           u8 *rdata, unsigned rdata_len,
 156                           int force_poll);
 157
 158 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 159
 160 typedef void (*wmi_notify_handler) (u32 value, void *context);
 161
 162 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 163                                         u32 method_id,
 164                                         const struct acpi_buffer *in,
 165                                         struct acpi_buffer *out);
 166 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 167                                         struct acpi_buffer *out);
 168 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 169                                         const struct acpi_buffer *in);
 170 extern acpi_status wmi_install_notify_handler(const char *guid,
 171                                         wmi_notify_handler handler, void *data);
 172 extern acpi_status wmi_remove_notify_handler(const char *guid);
 173 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 174 extern bool wmi_has_guid(const char *guid);
 175
 176 #endif  /* CONFIG_ACPI_WMI */
 177
 178 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 179 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 180 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 181 #define ACPI_VIDEO_BACKLIGHT                            0x0008
 182 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 183 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 184 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 185 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 186 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 187 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 188 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 189 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 190
 191 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 192
 193 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
 194 extern long acpi_is_video_device(struct acpi_device *device);
 195 extern int acpi_video_backlight_support(void);
 196 extern int acpi_video_display_switch_support(void);
 197
 198 #else
 199
 200 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 201 {
 202         return 0;
 203 }
 204
 205 static inline long acpi_is_video_device(struct acpi_device *device)
 206 {
 207         return 0;
 208 }
 209
 210 static inline int acpi_video_backlight_support(void)
 211 {
 212         return 0;
 213 }
 214
 215 static inline int acpi_video_display_switch_support(void)
 216 {
 217         return 0;
 218 }
 219
 220 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 221
 222 extern int acpi_blacklisted(void);
 223 #ifdef CONFIG_DMI
 224 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 225 extern int acpi_osi_setup(char *str);
 226 #endif
 227
 228 #ifdef CONFIG_ACPI_NUMA
 229 int acpi_get_pxm(acpi_handle handle);
 230 int acpi_get_node(acpi_handle *handle);
 231 #else
 232 static inline int acpi_get_pxm(acpi_handle handle)
 233 {
 234         return 0;
 235 }
 236 static inline int acpi_get_node(acpi_handle *handle)
 237 {
 238         return 0;
 239 }
 240 #endif
 241 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 242
 243 extern int pnpacpi_disabled;
 244
 245 #define PXM_INVAL       (-1)
 246 #define NID_INVAL       (-1)
 247
 248 int acpi_check_resource_conflict(struct resource *res);
 249
 250 int acpi_check_region(resource_size_t start, resource_size_t n,
 251                       const char *name);
 252 int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 253                       const char *name);
 254
 255 #ifdef CONFIG_PM_SLEEP
 256 void __init acpi_no_s4_hw_signature(void);
 257 void __init acpi_old_suspend_ordering(void);
 258 void __init acpi_s4_no_nvs(void);
 259 #endif /* CONFIG_PM_SLEEP */
 260 #else   /* CONFIG_ACPI */
 261
 262 static inline int early_acpi_boot_init(void)
 263 {
 264         return 0;
 265 }
 266 static inline int acpi_boot_init(void)
 267 {
 268         return 0;
 269 }
 270
 271 static inline int acpi_boot_table_init(void)
 272 {
 273         return 0;
 274 }
 275
 276 static inline int acpi_mps_check(void)
 277 {
 278         return 0;
 279 }
 280
 281 static inline int acpi_check_resource_conflict(struct resource *res)
 282 {
 283         return 0;
 284 }
 285
 286 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 287                                     const char *name)
 288 {
 289         return 0;
 290 }
 291
 292 static inline int acpi_check_mem_region(resource_size_t start,
 293                                         resource_size_t n, const char *name)
 294 {
 295         return 0;
 296 }
 297
 298 #endif  /* !CONFIG_ACPI */
 299 #endif  /*_LINUX_ACPI_H*/