linux/include/linux/acpi.h
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   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
  47enum 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
  55extern enum acpi_irq_model_id   acpi_irq_model;
  56
  57enum 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
  66enum 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
  77typedef int (*acpi_table_handler) (struct acpi_table_header *table);
  78
  79typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
  80
  81char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
  82int early_acpi_boot_init(void);
  83int acpi_boot_init (void);
  84int acpi_boot_table_init (void);
  85int acpi_mps_check (void);
  86int acpi_numa_init (void);
  87
  88int acpi_table_init (void);
  89int acpi_table_parse (char *id, acpi_table_handler handler);
  90int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  91        int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  92int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  93int acpi_parse_mcfg (struct acpi_table_header *header);
  94void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  95
  96/* the following four functions are architecture-dependent */
  97void acpi_numa_slit_init (struct acpi_table_slit *slit);
  98void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
  99void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 100void acpi_numa_arch_fixup(void);
 101
 102#ifdef CONFIG_ACPI_HOTPLUG_CPU
 103/* Arch dependent functions for cpu hotplug support */
 104int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 105int acpi_unmap_lsapic(int cpu);
 106#endif /* CONFIG_ACPI_HOTPLUG_CPU */
 107
 108int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 109int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 110void acpi_irq_stats_init(void);
 111extern u32 acpi_irq_handled;
 112
 113extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 114extern int pci_mmcfg_config_num;
 115
 116extern int sbf_port;
 117extern unsigned long acpi_realmode_flags;
 118
 119int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 120int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 121
 122#ifdef CONFIG_X86_IO_APIC
 123extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
 124#else
 125#define acpi_get_override_irq(bus, trigger, polarity) (-1)
 126#endif
 127/*
 128 * This function undoes the effect of one call to acpi_register_gsi().
 129 * If this matches the last registration, any IRQ resources for gsi
 130 * are freed.
 131 */
 132void acpi_unregister_gsi (u32 gsi);
 133
 134struct acpi_prt_entry {
 135        struct list_head        node;
 136        struct acpi_pci_id      id;
 137        u8                      pin;
 138        struct {
 139                acpi_handle             handle;
 140                u32                     index;
 141        }                       link;
 142        u32                     irq;
 143};
 144
 145struct acpi_prt_list {
 146        int                     count;
 147        struct list_head        entries;
 148};
 149
 150struct pci_dev;
 151
 152int acpi_pci_irq_enable (struct pci_dev *dev);
 153void acpi_penalize_isa_irq(int irq, int active);
 154
 155void acpi_pci_irq_disable (struct pci_dev *dev);
 156
 157struct acpi_pci_driver {
 158        struct acpi_pci_driver *next;
 159        int (*add)(acpi_handle handle);
 160        void (*remove)(acpi_handle handle);
 161};
 162
 163int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 164void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 165
 166extern int ec_read(u8 addr, u8 *val);
 167extern int ec_write(u8 addr, u8 val);
 168extern int ec_transaction(u8 command,
 169                          const u8 *wdata, unsigned wdata_len,
 170                          u8 *rdata, unsigned rdata_len,
 171                          int force_poll);
 172
 173#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 174
 175typedef void (*wmi_notify_handler) (u32 value, void *context);
 176
 177extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 178                                        u32 method_id,
 179                                        const struct acpi_buffer *in,
 180                                        struct acpi_buffer *out);
 181extern acpi_status wmi_query_block(const char *guid, u8 instance,
 182                                        struct acpi_buffer *out);
 183extern acpi_status wmi_set_block(const char *guid, u8 instance,
 184                                        const struct acpi_buffer *in);
 185extern acpi_status wmi_install_notify_handler(const char *guid,
 186                                        wmi_notify_handler handler, void *data);
 187extern acpi_status wmi_remove_notify_handler(const char *guid);
 188extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 189extern bool wmi_has_guid(const char *guid);
 190
 191#endif  /* CONFIG_ACPI_WMI */
 192
 193#define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 194#define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 195#define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 196#define ACPI_VIDEO_BACKLIGHT                            0x0008
 197#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 198#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 199#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 200#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 201#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 202#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 203#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 204#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 205
 206#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 207
 208extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
 209extern long acpi_is_video_device(struct acpi_device *device);
 210extern int acpi_video_backlight_support(void);
 211extern int acpi_video_display_switch_support(void);
 212
 213#else
 214
 215static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 216{
 217        return 0;
 218}
 219
 220static inline long acpi_is_video_device(struct acpi_device *device)
 221{
 222        return 0;
 223}
 224
 225static inline int acpi_video_backlight_support(void)
 226{
 227        return 0;
 228}
 229
 230static inline int acpi_video_display_switch_support(void)
 231{
 232        return 0;
 233}
 234
 235#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 236
 237extern int acpi_blacklisted(void);
 238#ifdef CONFIG_DMI
 239extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 240extern int acpi_osi_setup(char *str);
 241#endif
 242
 243#ifdef CONFIG_ACPI_NUMA
 244int acpi_get_pxm(acpi_handle handle);
 245int acpi_get_node(acpi_handle *handle);
 246#else
 247static inline int acpi_get_pxm(acpi_handle handle)
 248{
 249        return 0;
 250}
 251static inline int acpi_get_node(acpi_handle *handle)
 252{
 253        return 0;
 254}
 255#endif
 256extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 257
 258extern int pnpacpi_disabled;
 259
 260#define PXM_INVAL       (-1)
 261#define NID_INVAL       (-1)
 262
 263int acpi_check_resource_conflict(struct resource *res);
 264
 265int acpi_check_region(resource_size_t start, resource_size_t n,
 266                      const char *name);
 267int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 268                      const char *name);
 269
 270#ifdef CONFIG_PM_SLEEP
 271void __init acpi_no_s4_hw_signature(void);
 272void __init acpi_old_suspend_ordering(void);
 273#endif /* CONFIG_PM_SLEEP */
 274#else   /* CONFIG_ACPI */
 275
 276static inline int early_acpi_boot_init(void)
 277{
 278        return 0;
 279}
 280static inline int acpi_boot_init(void)
 281{
 282        return 0;
 283}
 284
 285static inline int acpi_boot_table_init(void)
 286{
 287        return 0;
 288}
 289
 290static inline int acpi_mps_check(void)
 291{
 292        return 0;
 293}
 294
 295static inline int acpi_check_resource_conflict(struct resource *res)
 296{
 297        return 0;
 298}
 299
 300static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 301                                    const char *name)
 302{
 303        return 0;
 304}
 305
 306static inline int acpi_check_mem_region(resource_size_t start,
 307                                        resource_size_t n, const char *name)
 308{
 309        return 0;
 310}
 311
 312#endif  /* !CONFIG_ACPI */
 313#endif  /*_LINUX_ACPI_H*/
 314
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