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_numa_init (void);
  86
  87 int acpi_table_init (void);
  88 int acpi_table_parse (char *id, acpi_table_handler handler);
  89 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  90         int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  91 int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  92 int acpi_parse_mcfg (struct acpi_table_header *header);
  93 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  94
  95 /* the following four functions are architecture-dependent */
  96 #ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
  97 #define NR_NODE_MEMBLKS MAX_NUMNODES
  98 #define acpi_numa_slit_init(slit) do {} while (0)
  99 #define acpi_numa_processor_affinity_init(pa) do {} while (0)
 100 #define acpi_numa_memory_affinity_init(ma) do {} while (0)
 101 #define acpi_numa_arch_fixup() do {} while (0)
 102 #else
 103 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 104 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 105 void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 106 void acpi_numa_arch_fixup(void);
 107 #endif
 108
 109 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 110 /* Arch dependent functions for cpu hotplug support */
 111 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 112 int acpi_unmap_lsapic(int cpu);
 113 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 114
 115 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 116 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 117 void acpi_irq_stats_init(void);
 118 extern u32 acpi_irq_handled;
 119
 120 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 121 extern int pci_mmcfg_config_num;
 122
 123 extern int sbf_port;
 124 extern unsigned long acpi_realmode_flags;
 125
 126 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 127 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 128
 129 #ifdef CONFIG_X86_IO_APIC
 130 extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
 131 #else
 132 #define acpi_get_override_irq(bus, trigger, polarity) (-1)
 133 #endif
 134 /*
 135  * This function undoes the effect of one call to acpi_register_gsi().
 136  * If this matches the last registration, any IRQ resources for gsi
 137  * are freed.
 138  */
 139 void acpi_unregister_gsi (u32 gsi);
 140
 141 struct acpi_prt_entry {
 142         struct list_head        node;
 143         struct acpi_pci_id      id;
 144         u8                      pin;
 145         struct {
 146                 acpi_handle             handle;
 147                 u32                     index;
 148         }                       link;
 149         u32                     irq;
 150 };
 151
 152 struct acpi_prt_list {
 153         int                     count;
 154         struct list_head        entries;
 155 };
 156
 157 struct pci_dev;
 158
 159 int acpi_pci_irq_enable (struct pci_dev *dev);
 160 void acpi_penalize_isa_irq(int irq, int active);
 161
 162 void acpi_pci_irq_disable (struct pci_dev *dev);
 163
 164 struct acpi_pci_driver {
 165         struct acpi_pci_driver *next;
 166         int (*add)(acpi_handle handle);
 167         void (*remove)(acpi_handle handle);
 168 };
 169
 170 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 171 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 172
 173 #ifdef CONFIG_ACPI_EC
 174
 175 extern int ec_read(u8 addr, u8 *val);
 176 extern int ec_write(u8 addr, u8 val);
 177 extern int ec_transaction(u8 command,
 178                           const u8 *wdata, unsigned wdata_len,
 179                           u8 *rdata, unsigned rdata_len,
 180                           int force_poll);
 181
 182 #endif /*CONFIG_ACPI_EC*/
 183
 184 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 185
 186 typedef void (*wmi_notify_handler) (u32 value, void *context);
 187
 188 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 189                                         u32 method_id,
 190                                         const struct acpi_buffer *in,
 191                                         struct acpi_buffer *out);
 192 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 193                                         struct acpi_buffer *out);
 194 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 195                                         const struct acpi_buffer *in);
 196 extern acpi_status wmi_install_notify_handler(const char *guid,
 197                                         wmi_notify_handler handler, void *data);
 198 extern acpi_status wmi_remove_notify_handler(const char *guid);
 199 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 200 extern bool wmi_has_guid(const char *guid);
 201
 202 #endif  /* CONFIG_ACPI_WMI */
 203
 204 extern int acpi_blacklisted(void);
 205 #ifdef CONFIG_DMI
 206 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 207 extern int acpi_osi_setup(char *str);
 208 #endif
 209
 210 #ifdef CONFIG_ACPI_NUMA
 211 int acpi_get_pxm(acpi_handle handle);
 212 int acpi_get_node(acpi_handle *handle);
 213 #else
 214 static inline int acpi_get_pxm(acpi_handle handle)
 215 {
 216         return 0;
 217 }
 218 static inline int acpi_get_node(acpi_handle *handle)
 219 {
 220         return 0;
 221 }
 222 #endif
 223 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 224
 225 extern int pnpacpi_disabled;
 226
 227 #define PXM_INVAL       (-1)
 228 #define NID_INVAL       (-1)
 229
 230 int acpi_check_resource_conflict(struct resource *res);
 231
 232 int acpi_check_region(resource_size_t start, resource_size_t n,
 233                       const char *name);
 234 int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 235                       const char *name);
 236
 237 #else   /* CONFIG_ACPI */
 238
 239 static inline int early_acpi_boot_init(void)
 240 {
 241         return 0;
 242 }
 243 static inline int acpi_boot_init(void)
 244 {
 245         return 0;
 246 }
 247
 248 static inline int acpi_boot_table_init(void)
 249 {
 250         return 0;
 251 }
 252
 253 static inline int acpi_check_resource_conflict(struct resource *res)
 254 {
 255         return 0;
 256 }
 257
 258 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 259                                     const char *name)
 260 {
 261         return 0;
 262 }
 263
 264 static inline int acpi_check_mem_region(resource_size_t start,
 265                                         resource_size_t n, const char *name)
 266 {
 267         return 0;
 268 }
 269
 270 #endif  /* !CONFIG_ACPI */
 271 #endif  /*_LINUX_ACPI_H*/