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
  45enum acpi_irq_model_id {
  46        ACPI_IRQ_MODEL_PIC = 0,
  47        ACPI_IRQ_MODEL_IOAPIC,
  48        ACPI_IRQ_MODEL_IOSAPIC,
  49        ACPI_IRQ_MODEL_PLATFORM,
  50        ACPI_IRQ_MODEL_COUNT
  51};
  52
  53extern enum acpi_irq_model_id   acpi_irq_model;
  54
  55enum acpi_interrupt_id {
  56        ACPI_INTERRUPT_PMI      = 1,
  57        ACPI_INTERRUPT_INIT,
  58        ACPI_INTERRUPT_CPEI,
  59        ACPI_INTERRUPT_COUNT
  60};
  61
  62#define ACPI_SPACE_MEM          0
  63
  64enum acpi_address_range_id {
  65        ACPI_ADDRESS_RANGE_MEMORY = 1,
  66        ACPI_ADDRESS_RANGE_RESERVED = 2,
  67        ACPI_ADDRESS_RANGE_ACPI = 3,
  68        ACPI_ADDRESS_RANGE_NVS  = 4,
  69        ACPI_ADDRESS_RANGE_COUNT
  70};
  71
  72
  73/* Table Handlers */
  74
  75typedef int (*acpi_table_handler) (struct acpi_table_header *table);
  76
  77typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
  78
  79char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
  80void __acpi_unmap_table(char *map, unsigned long size);
  81int early_acpi_boot_init(void);
  82int acpi_boot_init (void);
  83int acpi_boot_table_init (void);
  84int acpi_mps_check (void);
  85int acpi_numa_init (void);
  86
  87int acpi_table_init (void);
  88int acpi_table_parse (char *id, acpi_table_handler handler);
  89int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  90        int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  91int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  92int acpi_parse_mcfg (struct acpi_table_header *header);
  93void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  94
  95/* the following four functions are architecture-dependent */
  96void acpi_numa_slit_init (struct acpi_table_slit *slit);
  97void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
  98void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_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;
 112extern u32 acpi_irq_not_handled;
 113
 114extern int sbf_port;
 115extern unsigned long acpi_realmode_flags;
 116
 117int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 118int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 119
 120#ifdef CONFIG_X86_IO_APIC
 121extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
 122#else
 123#define acpi_get_override_irq(bus, trigger, polarity) (-1)
 124#endif
 125/*
 126 * This function undoes the effect of one call to acpi_register_gsi().
 127 * If this matches the last registration, any IRQ resources for gsi
 128 * are freed.
 129 */
 130void acpi_unregister_gsi (u32 gsi);
 131
 132struct pci_dev;
 133
 134int acpi_pci_irq_enable (struct pci_dev *dev);
 135void acpi_penalize_isa_irq(int irq, int active);
 136
 137void acpi_pci_irq_disable (struct pci_dev *dev);
 138
 139struct acpi_pci_driver {
 140        struct acpi_pci_driver *next;
 141        int (*add)(acpi_handle handle);
 142        void (*remove)(acpi_handle handle);
 143};
 144
 145int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 146void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 147
 148extern int ec_read(u8 addr, u8 *val);
 149extern int ec_write(u8 addr, u8 val);
 150extern int ec_transaction(u8 command,
 151                          const u8 *wdata, unsigned wdata_len,
 152                          u8 *rdata, unsigned rdata_len,
 153                          int force_poll);
 154
 155#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 156
 157typedef void (*wmi_notify_handler) (u32 value, void *context);
 158
 159extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 160                                        u32 method_id,
 161                                        const struct acpi_buffer *in,
 162                                        struct acpi_buffer *out);
 163extern acpi_status wmi_query_block(const char *guid, u8 instance,
 164                                        struct acpi_buffer *out);
 165extern acpi_status wmi_set_block(const char *guid, u8 instance,
 166                                        const struct acpi_buffer *in);
 167extern acpi_status wmi_install_notify_handler(const char *guid,
 168                                        wmi_notify_handler handler, void *data);
 169extern acpi_status wmi_remove_notify_handler(const char *guid);
 170extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 171extern bool wmi_has_guid(const char *guid);
 172
 173#endif  /* CONFIG_ACPI_WMI */
 174
 175#define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 176#define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 177#define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 178#define ACPI_VIDEO_BACKLIGHT                            0x0008
 179#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 180#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 181#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 182#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 183#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 184#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 185#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 186#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 187
 188#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 189
 190extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
 191extern long acpi_is_video_device(struct acpi_device *device);
 192extern int acpi_video_backlight_support(void);
 193extern int acpi_video_display_switch_support(void);
 194
 195#else
 196
 197static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 198{
 199        return 0;
 200}
 201
 202static inline long acpi_is_video_device(struct acpi_device *device)
 203{
 204        return 0;
 205}
 206
 207static inline int acpi_video_backlight_support(void)
 208{
 209        return 0;
 210}
 211
 212static inline int acpi_video_display_switch_support(void)
 213{
 214        return 0;
 215}
 216
 217#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 218
 219extern int acpi_blacklisted(void);
 220extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 221extern int acpi_osi_setup(char *str);
 222
 223#ifdef CONFIG_ACPI_NUMA
 224int acpi_get_pxm(acpi_handle handle);
 225int acpi_get_node(acpi_handle *handle);
 226#else
 227static inline int acpi_get_pxm(acpi_handle handle)
 228{
 229        return 0;
 230}
 231static inline int acpi_get_node(acpi_handle *handle)
 232{
 233        return 0;
 234}
 235#endif
 236extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 237
 238extern int pnpacpi_disabled;
 239
 240#define PXM_INVAL       (-1)
 241#define NID_INVAL       (-1)
 242
 243int acpi_check_resource_conflict(struct resource *res);
 244
 245int acpi_check_region(resource_size_t start, resource_size_t n,
 246                      const char *name);
 247int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 248                      const char *name);
 249
 250#ifdef CONFIG_PM_SLEEP
 251void __init acpi_no_s4_hw_signature(void);
 252void __init acpi_old_suspend_ordering(void);
 253void __init acpi_s4_no_nvs(void);
 254#endif /* CONFIG_PM_SLEEP */
 255
 256#define OSC_QUERY_TYPE                  0
 257#define OSC_SUPPORT_TYPE                1
 258#define OSC_CONTROL_TYPE                2
 259#define OSC_SUPPORT_MASKS               0x1f
 260
 261/* _OSC DW0 Definition */
 262#define OSC_QUERY_ENABLE                1
 263#define OSC_REQUEST_ERROR               2
 264#define OSC_INVALID_UUID_ERROR          4
 265#define OSC_INVALID_REVISION_ERROR      8
 266#define OSC_CAPABILITIES_MASK_ERROR     16
 267
 268/* _OSC DW1 Definition (OS Support Fields) */
 269#define OSC_EXT_PCI_CONFIG_SUPPORT              1
 270#define OSC_ACTIVE_STATE_PWR_SUPPORT            2
 271#define OSC_CLOCK_PWR_CAPABILITY_SUPPORT        4
 272#define OSC_PCI_SEGMENT_GROUPS_SUPPORT          8
 273#define OSC_MSI_SUPPORT                         16
 274
 275/* _OSC DW1 Definition (OS Control Fields) */
 276#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       1
 277#define OSC_SHPC_NATIVE_HP_CONTROL              2
 278#define OSC_PCI_EXPRESS_PME_CONTROL             4
 279#define OSC_PCI_EXPRESS_AER_CONTROL             8
 280#define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL   16
 281
 282#define OSC_CONTROL_MASKS       (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
 283                                OSC_SHPC_NATIVE_HP_CONTROL |            \
 284                                OSC_PCI_EXPRESS_PME_CONTROL |           \
 285                                OSC_PCI_EXPRESS_AER_CONTROL |           \
 286                                OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
 287
 288extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags);
 289extern void acpi_early_init(void);
 290
 291#else   /* !CONFIG_ACPI */
 292
 293#define acpi_disabled 1
 294
 295static inline void acpi_early_init(void) { }
 296
 297static inline int early_acpi_boot_init(void)
 298{
 299        return 0;
 300}
 301static inline int acpi_boot_init(void)
 302{
 303        return 0;
 304}
 305
 306static inline int acpi_boot_table_init(void)
 307{
 308        return 0;
 309}
 310
 311static inline int acpi_mps_check(void)
 312{
 313        return 0;
 314}
 315
 316static inline int acpi_check_resource_conflict(struct resource *res)
 317{
 318        return 0;
 319}
 320
 321static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 322                                    const char *name)
 323{
 324        return 0;
 325}
 326
 327static inline int acpi_check_mem_region(resource_size_t start,
 328                                        resource_size_t n, const char *name)
 329{
 330        return 0;
 331}
 332
 333struct acpi_table_header;
 334static inline int acpi_table_parse(char *id,
 335                                int (*handler)(struct acpi_table_header *))
 336{
 337        return -1;
 338}
 339#endif  /* !CONFIG_ACPI */
 340#endif  /*_LINUX_ACPI_H*/
 341