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 #ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
  98 #define NR_NODE_MEMBLKS MAX_NUMNODES
  99 #define acpi_numa_slit_init(slit) do {} while (0)
 100 #define acpi_numa_processor_affinity_init(pa) do {} while (0)
 101 #define acpi_numa_memory_affinity_init(ma) do {} while (0)
 102 #define acpi_numa_arch_fixup() do {} while (0)
 103 #else
 104 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 105 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 106 void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 107 void acpi_numa_arch_fixup(void);
 108 #endif
 109
 110 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 111 /* Arch dependent functions for cpu hotplug support */
 112 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 113 int acpi_unmap_lsapic(int cpu);
 114 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 115
 116 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 117 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 118 void acpi_irq_stats_init(void);
 119 extern u32 acpi_irq_handled;
 120
 121 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 122 extern int pci_mmcfg_config_num;
 123
 124 extern int sbf_port;
 125 extern unsigned long acpi_realmode_flags;
 126
 127 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 128 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 129
 130 #ifdef CONFIG_X86_IO_APIC
 131 extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
 132 #else
 133 #define acpi_get_override_irq(bus, trigger, polarity) (-1)
 134 #endif
 135 /*
 136  * This function undoes the effect of one call to acpi_register_gsi().
 137  * If this matches the last registration, any IRQ resources for gsi
 138  * are freed.
 139  */
 140 void acpi_unregister_gsi (u32 gsi);
 141
 142 struct acpi_prt_entry {
 143         struct list_head        node;
 144         struct acpi_pci_id      id;
 145         u8                      pin;
 146         struct {
 147                 acpi_handle             handle;
 148                 u32                     index;
 149         }                       link;
 150         u32                     irq;
 151 };
 152
 153 struct acpi_prt_list {
 154         int                     count;
 155         struct list_head        entries;
 156 };
 157
 158 struct pci_dev;
 159
 160 int acpi_pci_irq_enable (struct pci_dev *dev);
 161 void acpi_penalize_isa_irq(int irq, int active);
 162
 163 void acpi_pci_irq_disable (struct pci_dev *dev);
 164
 165 struct acpi_pci_driver {
 166         struct acpi_pci_driver *next;
 167         int (*add)(acpi_handle handle);
 168         void (*remove)(acpi_handle handle);
 169 };
 170
 171 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 172 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 173
 174 #ifdef CONFIG_ACPI_EC
 175
 176 extern int ec_read(u8 addr, u8 *val);
 177 extern int ec_write(u8 addr, u8 val);
 178 extern int ec_transaction(u8 command,
 179                           const u8 *wdata, unsigned wdata_len,
 180                           u8 *rdata, unsigned rdata_len,
 181                           int force_poll);
 182
 183 #endif /*CONFIG_ACPI_EC*/
 184
 185 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 186
 187 typedef void (*wmi_notify_handler) (u32 value, void *context);
 188
 189 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 190                                         u32 method_id,
 191                                         const struct acpi_buffer *in,
 192                                         struct acpi_buffer *out);
 193 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 194                                         struct acpi_buffer *out);
 195 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 196                                         const struct acpi_buffer *in);
 197 extern acpi_status wmi_install_notify_handler(const char *guid,
 198                                         wmi_notify_handler handler, void *data);
 199 extern acpi_status wmi_remove_notify_handler(const char *guid);
 200 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 201 extern bool wmi_has_guid(const char *guid);
 202
 203 #endif  /* CONFIG_ACPI_WMI */
 204
 205 extern int acpi_blacklisted(void);
 206 #ifdef CONFIG_DMI
 207 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 208 extern int acpi_osi_setup(char *str);
 209 #endif
 210
 211 #ifdef CONFIG_ACPI_NUMA
 212 int acpi_get_pxm(acpi_handle handle);
 213 int acpi_get_node(acpi_handle *handle);
 214 #else
 215 static inline int acpi_get_pxm(acpi_handle handle)
 216 {
 217         return 0;
 218 }
 219 static inline int acpi_get_node(acpi_handle *handle)
 220 {
 221         return 0;
 222 }
 223 #endif
 224 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 225
 226 extern int pnpacpi_disabled;
 227
 228 #define PXM_INVAL       (-1)
 229 #define NID_INVAL       (-1)
 230
 231 int acpi_check_resource_conflict(struct resource *res);
 232
 233 int acpi_check_region(resource_size_t start, resource_size_t n,
 234                       const char *name);
 235 int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 236                       const char *name);
 237
 238 #ifdef CONFIG_PM_SLEEP
 239 void __init acpi_no_s4_hw_signature(void);
 240 void __init acpi_old_suspend_ordering(void);
 241 #endif /* CONFIG_PM_SLEEP */
 242 #else   /* CONFIG_ACPI */
 243
 244 static inline int early_acpi_boot_init(void)
 245 {
 246         return 0;
 247 }
 248 static inline int acpi_boot_init(void)
 249 {
 250         return 0;
 251 }
 252
 253 static inline int acpi_boot_table_init(void)
 254 {
 255         return 0;
 256 }
 257
 258 static inline int acpi_mps_check(void)
 259 {
 260         return 0;
 261 }
 262
 263 static inline int acpi_check_resource_conflict(struct resource *res)
 264 {
 265         return 0;
 266 }
 267
 268 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 269                                     const char *name)
 270 {
 271         return 0;
 272 }
 273
 274 static inline int acpi_check_mem_region(resource_size_t start,
 275                                         resource_size_t n, const char *name)
 276 {
 277         return 0;
 278 }
 279
 280 #endif  /* !CONFIG_ACPI */
 281 #endif  /*_LINUX_ACPI_H*/