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);
  83void 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);
  99int 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);
 119int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 120
 121#ifdef CONFIG_X86_IO_APIC
 122extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 123#else
 124#define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 125#endif
 126/*
 127 * This function undoes the effect of one call to acpi_register_gsi().
 128 * If this matches the last registration, any IRQ resources for gsi
 129 * are freed.
 130 */
 131void acpi_unregister_gsi (u32 gsi);
 132
 133struct pci_dev;
 134
 135int acpi_pci_irq_enable (struct pci_dev *dev);
 136void acpi_penalize_isa_irq(int irq, int active);
 137
 138void acpi_pci_irq_disable (struct pci_dev *dev);
 139
 140struct acpi_pci_driver {
 141        struct acpi_pci_driver *next;
 142        int (*add)(acpi_handle handle);
 143        void (*remove)(acpi_handle handle);
 144};
 145
 146int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 147void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 148
 149extern int ec_read(u8 addr, u8 *val);
 150extern int ec_write(u8 addr, u8 val);
 151extern int ec_transaction(u8 command,
 152                          const u8 *wdata, unsigned wdata_len,
 153                          u8 *rdata, unsigned rdata_len);
 154extern acpi_handle ec_get_handle(void);
 155
 156#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 157
 158typedef void (*wmi_notify_handler) (u32 value, void *context);
 159
 160extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 161                                        u32 method_id,
 162                                        const struct acpi_buffer *in,
 163                                        struct acpi_buffer *out);
 164extern acpi_status wmi_query_block(const char *guid, u8 instance,
 165                                        struct acpi_buffer *out);
 166extern acpi_status wmi_set_block(const char *guid, u8 instance,
 167                                        const struct acpi_buffer *in);
 168extern acpi_status wmi_install_notify_handler(const char *guid,
 169                                        wmi_notify_handler handler, void *data);
 170extern acpi_status wmi_remove_notify_handler(const char *guid);
 171extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 172extern bool wmi_has_guid(const char *guid);
 173
 174#endif  /* CONFIG_ACPI_WMI */
 175
 176#define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 177#define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 178#define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 179#define ACPI_VIDEO_BACKLIGHT                            0x0008
 180#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 181#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 182#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 183#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 184#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 185#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 186#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 187#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 188
 189#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 190
 191extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
 192extern long acpi_is_video_device(struct acpi_device *device);
 193extern void acpi_video_dmi_promote_vendor(void);
 194extern void acpi_video_dmi_demote_vendor(void);
 195extern int acpi_video_backlight_support(void);
 196extern int acpi_video_display_switch_support(void);
 197
 198#else
 199
 200static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 201{
 202        return 0;
 203}
 204
 205static inline long acpi_is_video_device(struct acpi_device *device)
 206{
 207        return 0;
 208}
 209
 210static inline void acpi_video_dmi_promote_vendor(void)
 211{
 212}
 213
 214static inline void acpi_video_dmi_demote_vendor(void)
 215{
 216}
 217
 218static inline int acpi_video_backlight_support(void)
 219{
 220        return 0;
 221}
 222
 223static inline int acpi_video_display_switch_support(void)
 224{
 225        return 0;
 226}
 227
 228#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 229
 230extern int acpi_blacklisted(void);
 231extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 232extern void acpi_osi_setup(char *str);
 233
 234#ifdef CONFIG_ACPI_NUMA
 235int acpi_get_pxm(acpi_handle handle);
 236int acpi_get_node(acpi_handle *handle);
 237#else
 238static inline int acpi_get_pxm(acpi_handle handle)
 239{
 240        return 0;
 241}
 242static inline int acpi_get_node(acpi_handle *handle)
 243{
 244        return 0;
 245}
 246#endif
 247extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 248
 249extern int pnpacpi_disabled;
 250
 251#define PXM_INVAL       (-1)
 252
 253int acpi_check_resource_conflict(const struct resource *res);
 254
 255int acpi_check_region(resource_size_t start, resource_size_t n,
 256                      const char *name);
 257
 258int acpi_resources_are_enforced(void);
 259
 260#ifdef CONFIG_PM_SLEEP
 261void __init acpi_no_s4_hw_signature(void);
 262void __init acpi_old_suspend_ordering(void);
 263void __init acpi_nvs_nosave(void);
 264#endif /* CONFIG_PM_SLEEP */
 265
 266struct acpi_osc_context {
 267        char *uuid_str; /* uuid string */
 268        int rev;
 269        struct acpi_buffer cap; /* arg2/arg3 */
 270        struct acpi_buffer ret; /* free by caller if success */
 271};
 272
 273#define OSC_QUERY_TYPE                  0
 274#define OSC_SUPPORT_TYPE                1
 275#define OSC_CONTROL_TYPE                2
 276
 277/* _OSC DW0 Definition */
 278#define OSC_QUERY_ENABLE                1
 279#define OSC_REQUEST_ERROR               2
 280#define OSC_INVALID_UUID_ERROR          4
 281#define OSC_INVALID_REVISION_ERROR      8
 282#define OSC_CAPABILITIES_MASK_ERROR     16
 283
 284acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 285
 286/* platform-wide _OSC bits */
 287#define OSC_SB_PAD_SUPPORT              1
 288#define OSC_SB_PPC_OST_SUPPORT          2
 289#define OSC_SB_PR3_SUPPORT              4
 290#define OSC_SB_HOTPLUG_OST_SUPPORT      8
 291#define OSC_SB_APEI_SUPPORT             16
 292
 293extern bool osc_sb_apei_support_acked;
 294
 295/* PCI defined _OSC bits */
 296/* _OSC DW1 Definition (OS Support Fields) */
 297#define OSC_EXT_PCI_CONFIG_SUPPORT              1
 298#define OSC_ACTIVE_STATE_PWR_SUPPORT            2
 299#define OSC_CLOCK_PWR_CAPABILITY_SUPPORT        4
 300#define OSC_PCI_SEGMENT_GROUPS_SUPPORT          8
 301#define OSC_MSI_SUPPORT                         16
 302#define OSC_PCI_SUPPORT_MASKS                   0x1f
 303
 304/* _OSC DW1 Definition (OS Control Fields) */
 305#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       1
 306#define OSC_SHPC_NATIVE_HP_CONTROL              2
 307#define OSC_PCI_EXPRESS_PME_CONTROL             4
 308#define OSC_PCI_EXPRESS_AER_CONTROL             8
 309#define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL   16
 310
 311#define OSC_PCI_CONTROL_MASKS   (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
 312                                OSC_SHPC_NATIVE_HP_CONTROL |            \
 313                                OSC_PCI_EXPRESS_PME_CONTROL |           \
 314                                OSC_PCI_EXPRESS_AER_CONTROL |           \
 315                                OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
 316
 317#define OSC_PCI_NATIVE_HOTPLUG  (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
 318                                OSC_SHPC_NATIVE_HP_CONTROL)
 319
 320extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 321                                             u32 *mask, u32 req);
 322
 323/* Enable _OST when all relevant hotplug operations are enabled */
 324#if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 325        (defined(CONFIG_ACPI_HOTPLUG_MEMORY) ||         \
 326         defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)) && \
 327        (defined(CONFIG_ACPI_CONTAINER) ||              \
 328         defined(CONFIG_ACPI_CONTAINER_MODULE))
 329#define ACPI_HOTPLUG_OST
 330#endif
 331
 332/* _OST Source Event Code (OSPM Action) */
 333#define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 334#define ACPI_OST_EC_OSPM_EJECT                  0x103
 335#define ACPI_OST_EC_OSPM_INSERTION              0x200
 336
 337/* _OST General Processing Status Code */
 338#define ACPI_OST_SC_SUCCESS                     0x0
 339#define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 340#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 341
 342/* _OST OS Shutdown Processing (0x100) Status Code */
 343#define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 344#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 345#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 346#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 347
 348/* _OST Ejection Request (0x3, 0x103) Status Code */
 349#define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 350#define ACPI_OST_SC_DEVICE_IN_USE               0x81
 351#define ACPI_OST_SC_DEVICE_BUSY                 0x82
 352#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 353#define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 354
 355/* _OST Insertion Request (0x200) Status Code */
 356#define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 357#define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 358#define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 359
 360extern void acpi_early_init(void);
 361
 362extern int acpi_nvs_register(__u64 start, __u64 size);
 363
 364extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 365                                    void *data);
 366
 367#else   /* !CONFIG_ACPI */
 368
 369#define acpi_disabled 1
 370
 371static inline void acpi_early_init(void) { }
 372
 373static inline int early_acpi_boot_init(void)
 374{
 375        return 0;
 376}
 377static inline int acpi_boot_init(void)
 378{
 379        return 0;
 380}
 381
 382static inline void acpi_boot_table_init(void)
 383{
 384        return;
 385}
 386
 387static inline int acpi_mps_check(void)
 388{
 389        return 0;
 390}
 391
 392static inline int acpi_check_resource_conflict(struct resource *res)
 393{
 394        return 0;
 395}
 396
 397static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 398                                    const char *name)
 399{
 400        return 0;
 401}
 402
 403struct acpi_table_header;
 404static inline int acpi_table_parse(char *id,
 405                                int (*handler)(struct acpi_table_header *))
 406{
 407        return -1;
 408}
 409
 410static inline int acpi_nvs_register(__u64 start, __u64 size)
 411{
 412        return 0;
 413}
 414
 415static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 416                                           void *data)
 417{
 418        return 0;
 419}
 420
 421#endif  /* !CONFIG_ACPI */
 422
 423#ifdef CONFIG_ACPI
 424void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 425                               u32 pm1a_ctrl,  u32 pm1b_ctrl));
 426
 427acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 428                                  u32 pm1a_control, u32 pm1b_control);
 429#else
 430#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 431#endif
 432
 433#endif  /*_LINUX_ACPI_H*/
 434
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