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);
  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);
 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,
 154                          int force_poll);
 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 int acpi_video_backlight_support(void);
 194extern int acpi_video_display_switch_support(void);
 195
 196#else
 197
 198static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 199{
 200        return 0;
 201}
 202
 203static inline long acpi_is_video_device(struct acpi_device *device)
 204{
 205        return 0;
 206}
 207
 208static inline int acpi_video_backlight_support(void)
 209{
 210        return 0;
 211}
 212
 213static inline int acpi_video_display_switch_support(void)
 214{
 215        return 0;
 216}
 217
 218#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 219
 220extern int acpi_blacklisted(void);
 221extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 222extern int acpi_osi_setup(char *str);
 223
 224#ifdef CONFIG_ACPI_NUMA
 225int acpi_get_pxm(acpi_handle handle);
 226int acpi_get_node(acpi_handle *handle);
 227#else
 228static inline int acpi_get_pxm(acpi_handle handle)
 229{
 230        return 0;
 231}
 232static inline int acpi_get_node(acpi_handle *handle)
 233{
 234        return 0;
 235}
 236#endif
 237extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 238
 239extern int pnpacpi_disabled;
 240
 241#define PXM_INVAL       (-1)
 242#define NID_INVAL       (-1)
 243
 244int acpi_check_resource_conflict(const struct resource *res);
 245
 246int acpi_check_region(resource_size_t start, resource_size_t n,
 247                      const char *name);
 248int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 249                      const char *name);
 250
 251int acpi_resources_are_enforced(void);
 252
 253#ifdef CONFIG_PM_SLEEP
 254void __init acpi_no_s4_hw_signature(void);
 255void __init acpi_old_suspend_ordering(void);
 256void __init acpi_nvs_nosave(void);
 257#endif /* CONFIG_PM_SLEEP */
 258
 259struct acpi_osc_context {
 260        char *uuid_str; /* uuid string */
 261        int rev;
 262        struct acpi_buffer cap; /* arg2/arg3 */
 263        struct acpi_buffer ret; /* free by caller if success */
 264};
 265
 266#define OSC_QUERY_TYPE                  0
 267#define OSC_SUPPORT_TYPE                1
 268#define OSC_CONTROL_TYPE                2
 269
 270/* _OSC DW0 Definition */
 271#define OSC_QUERY_ENABLE                1
 272#define OSC_REQUEST_ERROR               2
 273#define OSC_INVALID_UUID_ERROR          4
 274#define OSC_INVALID_REVISION_ERROR      8
 275#define OSC_CAPABILITIES_MASK_ERROR     16
 276
 277acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 278
 279/* platform-wide _OSC bits */
 280#define OSC_SB_PAD_SUPPORT              1
 281#define OSC_SB_PPC_OST_SUPPORT          2
 282#define OSC_SB_PR3_SUPPORT              4
 283#define OSC_SB_CPUHP_OST_SUPPORT        8
 284#define OSC_SB_APEI_SUPPORT             16
 285
 286/* PCI defined _OSC bits */
 287/* _OSC DW1 Definition (OS Support Fields) */
 288#define OSC_EXT_PCI_CONFIG_SUPPORT              1
 289#define OSC_ACTIVE_STATE_PWR_SUPPORT            2
 290#define OSC_CLOCK_PWR_CAPABILITY_SUPPORT        4
 291#define OSC_PCI_SEGMENT_GROUPS_SUPPORT          8
 292#define OSC_MSI_SUPPORT                         16
 293#define OSC_PCI_SUPPORT_MASKS                   0x1f
 294
 295/* _OSC DW1 Definition (OS Control Fields) */
 296#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       1
 297#define OSC_SHPC_NATIVE_HP_CONTROL              2
 298#define OSC_PCI_EXPRESS_PME_CONTROL             4
 299#define OSC_PCI_EXPRESS_AER_CONTROL             8
 300#define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL   16
 301
 302#define OSC_PCI_CONTROL_MASKS   (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
 303                                OSC_SHPC_NATIVE_HP_CONTROL |            \
 304                                OSC_PCI_EXPRESS_PME_CONTROL |           \
 305                                OSC_PCI_EXPRESS_AER_CONTROL |           \
 306                                OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
 307
 308extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags);
 309extern void acpi_early_init(void);
 310
 311#else   /* !CONFIG_ACPI */
 312
 313#define acpi_disabled 1
 314
 315static inline void acpi_early_init(void) { }
 316
 317static inline int early_acpi_boot_init(void)
 318{
 319        return 0;
 320}
 321static inline int acpi_boot_init(void)
 322{
 323        return 0;
 324}
 325
 326static inline void acpi_boot_table_init(void)
 327{
 328        return;
 329}
 330
 331static inline int acpi_mps_check(void)
 332{
 333        return 0;
 334}
 335
 336static inline int acpi_check_resource_conflict(struct resource *res)
 337{
 338        return 0;
 339}
 340
 341static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 342                                    const char *name)
 343{
 344        return 0;
 345}
 346
 347static inline int acpi_check_mem_region(resource_size_t start,
 348                                        resource_size_t n, const char *name)
 349{
 350        return 0;
 351}
 352
 353struct acpi_table_header;
 354static inline int acpi_table_parse(char *id,
 355                                int (*handler)(struct acpi_table_header *))
 356{
 357        return -1;
 358}
 359#endif  /* !CONFIG_ACPI */
 360#endif  /*_LINUX_ACPI_H*/
 361
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