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 int early_acpi_boot_init(void);
  83 int acpi_boot_init (void);
  84 int acpi_boot_table_init (void);
  85 int acpi_mps_check (void);
  86 int acpi_numa_init (void);
  87
  88 int acpi_table_init (void);
  89 int acpi_table_parse (char *id, acpi_table_handler handler);
  90 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  91         int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  92 int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  93 int acpi_parse_mcfg (struct acpi_table_header *header);
  94 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  95
  96 /* the following four functions are architecture-dependent */
  97 void acpi_numa_slit_init (struct acpi_table_slit *slit);
  98 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
  99 void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 100 void acpi_numa_arch_fixup(void);
 101
 102 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 103 /* Arch dependent functions for cpu hotplug support */
 104 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 105 int acpi_unmap_lsapic(int cpu);
 106 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 107
 108 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 109 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 110 void acpi_irq_stats_init(void);
 111 extern u32 acpi_irq_handled;
 112
 113 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 114 extern int pci_mmcfg_config_num;
 115
 116 extern int sbf_port;
 117 extern unsigned long acpi_realmode_flags;
 118
 119 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 120 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 121
 122 #ifdef CONFIG_X86_IO_APIC
 123 extern 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  */
 132 void acpi_unregister_gsi (u32 gsi);
 133
 134 struct 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
 145 struct acpi_prt_list {
 146         int                     count;
 147         struct list_head        entries;
 148 };
 149
 150 struct pci_dev;
 151
 152 int acpi_pci_irq_enable (struct pci_dev *dev);
 153 void acpi_penalize_isa_irq(int irq, int active);
 154
 155 void acpi_pci_irq_disable (struct pci_dev *dev);
 156
 157 struct acpi_pci_driver {
 158         struct acpi_pci_driver *next;
 159         int (*add)(acpi_handle handle);
 160         void (*remove)(acpi_handle handle);
 161 };
 162
 163 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 164 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 165
 166 #ifdef CONFIG_ACPI_EC
 167
 168 extern int ec_read(u8 addr, u8 *val);
 169 extern int ec_write(u8 addr, u8 val);
 170 extern int ec_transaction(u8 command,
 171                           const u8 *wdata, unsigned wdata_len,
 172                           u8 *rdata, unsigned rdata_len,
 173                           int force_poll);
 174
 175 #endif /*CONFIG_ACPI_EC*/
 176
 177 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 178
 179 typedef void (*wmi_notify_handler) (u32 value, void *context);
 180
 181 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 182                                         u32 method_id,
 183                                         const struct acpi_buffer *in,
 184                                         struct acpi_buffer *out);
 185 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 186                                         struct acpi_buffer *out);
 187 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 188                                         const struct acpi_buffer *in);
 189 extern acpi_status wmi_install_notify_handler(const char *guid,
 190                                         wmi_notify_handler handler, void *data);
 191 extern acpi_status wmi_remove_notify_handler(const char *guid);
 192 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 193 extern bool wmi_has_guid(const char *guid);
 194
 195 #endif  /* CONFIG_ACPI_WMI */
 196
 197 extern int acpi_blacklisted(void);
 198 #ifdef CONFIG_DMI
 199 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 200 extern int acpi_osi_setup(char *str);
 201 #endif
 202
 203 #ifdef CONFIG_ACPI_NUMA
 204 int acpi_get_pxm(acpi_handle handle);
 205 int acpi_get_node(acpi_handle *handle);
 206 #else
 207 static inline int acpi_get_pxm(acpi_handle handle)
 208 {
 209         return 0;
 210 }
 211 static inline int acpi_get_node(acpi_handle *handle)
 212 {
 213         return 0;
 214 }
 215 #endif
 216 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 217
 218 extern int pnpacpi_disabled;
 219
 220 #define PXM_INVAL       (-1)
 221 #define NID_INVAL       (-1)
 222
 223 int acpi_check_resource_conflict(struct resource *res);
 224
 225 int acpi_check_region(resource_size_t start, resource_size_t n,
 226                       const char *name);
 227 int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 228                       const char *name);
 229
 230 #ifdef CONFIG_PM_SLEEP
 231 void __init acpi_no_s4_hw_signature(void);
 232 void __init acpi_old_suspend_ordering(void);
 233 #endif /* CONFIG_PM_SLEEP */
 234 #else   /* CONFIG_ACPI */
 235
 236 static inline int early_acpi_boot_init(void)
 237 {
 238         return 0;
 239 }
 240 static inline int acpi_boot_init(void)
 241 {
 242         return 0;
 243 }
 244
 245 static inline int acpi_boot_table_init(void)
 246 {
 247         return 0;
 248 }
 249
 250 static inline int acpi_mps_check(void)
 251 {
 252         return 0;
 253 }
 254
 255 static inline int acpi_check_resource_conflict(struct resource *res)
 256 {
 257         return 0;
 258 }
 259
 260 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 261                                     const char *name)
 262 {
 263         return 0;
 264 }
 265
 266 static inline int acpi_check_mem_region(resource_size_t start,
 267                                         resource_size_t n, const char *name)
 268 {
 269         return 0;
 270 }
 271
 272 #endif  /* !CONFIG_ACPI */
 273 #endif  /*_LINUX_ACPI_H*/