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TOMOYO Linux Cross Reference
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 
 45 enum 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 
 53 extern enum acpi_irq_model_id   acpi_irq_model;
 54 
 55 enum 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 
 64 enum 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 
 75 typedef int (*acpi_table_handler) (struct acpi_table_header *table);
 76 
 77 typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
 78 
 79 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 80 void __acpi_unmap_table(char *map, unsigned long size);
 81 int early_acpi_boot_init(void);
 82 int acpi_boot_init (void);
 83 void acpi_boot_table_init (void);
 84 int acpi_mps_check (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 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 97 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 98 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_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 extern u32 acpi_irq_not_handled;
113 extern unsigned int acpi_sci_irq;
114 #define INVALID_ACPI_IRQ        ((unsigned)-1)
115 static inline bool acpi_sci_irq_valid(void)
116 {
117         return acpi_sci_irq != INVALID_ACPI_IRQ;
118 }
119 
120 extern int sbf_port;
121 extern unsigned long acpi_realmode_flags;
122 
123 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
124 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
125 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
126 
127 #ifdef CONFIG_X86_IO_APIC
128 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
129 #else
130 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
131 #endif
132 /*
133  * This function undoes the effect of one call to acpi_register_gsi().
134  * If this matches the last registration, any IRQ resources for gsi
135  * are freed.
136  */
137 void acpi_unregister_gsi (u32 gsi);
138 
139 struct pci_dev;
140 
141 int acpi_pci_irq_enable (struct pci_dev *dev);
142 void acpi_penalize_isa_irq(int irq, int active);
143 
144 void acpi_pci_irq_disable (struct pci_dev *dev);
145 
146 struct acpi_pci_driver {
147         struct acpi_pci_driver *next;
148         int (*add)(acpi_handle handle);
149         void (*remove)(acpi_handle handle);
150 };
151 
152 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
153 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
154 
155 extern int ec_read(u8 addr, u8 *val);
156 extern int ec_write(u8 addr, u8 val);
157 extern int ec_transaction(u8 command,
158                           const u8 *wdata, unsigned wdata_len,
159                           u8 *rdata, unsigned rdata_len);
160 
161 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
162 
163 typedef void (*wmi_notify_handler) (u32 value, void *context);
164 
165 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
166                                         u32 method_id,
167                                         const struct acpi_buffer *in,
168                                         struct acpi_buffer *out);
169 extern acpi_status wmi_query_block(const char *guid, u8 instance,
170                                         struct acpi_buffer *out);
171 extern acpi_status wmi_set_block(const char *guid, u8 instance,
172                                         const struct acpi_buffer *in);
173 extern acpi_status wmi_install_notify_handler(const char *guid,
174                                         wmi_notify_handler handler, void *data);
175 extern acpi_status wmi_remove_notify_handler(const char *guid);
176 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
177 extern bool wmi_has_guid(const char *guid);
178 
179 #endif  /* CONFIG_ACPI_WMI */
180 
181 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
182 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
183 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
184 #define ACPI_VIDEO_BACKLIGHT                            0x0008
185 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
186 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
187 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
188 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
189 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
190 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
191 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
192 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
193 
194 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
195 
196 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
197 extern long acpi_is_video_device(struct acpi_device *device);
198 extern int acpi_video_backlight_support(void);
199 extern int acpi_video_display_switch_support(void);
200 
201 #else
202 
203 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
204 {
205         return 0;
206 }
207 
208 static inline long acpi_is_video_device(struct acpi_device *device)
209 {
210         return 0;
211 }
212 
213 static inline int acpi_video_backlight_support(void)
214 {
215         return 0;
216 }
217 
218 static inline int acpi_video_display_switch_support(void)
219 {
220         return 0;
221 }
222 
223 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
224 
225 extern int acpi_blacklisted(void);
226 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
227 extern void acpi_osi_setup(char *str);
228 
229 #ifdef CONFIG_ACPI_NUMA
230 int acpi_get_pxm(acpi_handle handle);
231 int acpi_get_node(acpi_handle *handle);
232 #else
233 static inline int acpi_get_pxm(acpi_handle handle)
234 {
235         return 0;
236 }
237 static inline int acpi_get_node(acpi_handle *handle)
238 {
239         return 0;
240 }
241 #endif
242 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
243 
244 extern int pnpacpi_disabled;
245 
246 #define PXM_INVAL       (-1)
247 
248 int acpi_check_resource_conflict(const struct resource *res);
249 
250 int acpi_check_region(resource_size_t start, resource_size_t n,
251                       const char *name);
252 
253 int acpi_resources_are_enforced(void);
254 
255 #ifdef CONFIG_PM_SLEEP
256 void __init acpi_no_s4_hw_signature(void);
257 void __init acpi_old_suspend_ordering(void);
258 void __init acpi_nvs_nosave(void);
259 #endif /* CONFIG_PM_SLEEP */
260 
261 struct acpi_osc_context {
262         char *uuid_str; /* uuid string */
263         int rev;
264         struct acpi_buffer cap; /* arg2/arg3 */
265         struct acpi_buffer ret; /* free by caller if success */
266 };
267 
268 #define OSC_QUERY_TYPE                  0
269 #define OSC_SUPPORT_TYPE                1
270 #define OSC_CONTROL_TYPE                2
271 
272 /* _OSC DW0 Definition */
273 #define OSC_QUERY_ENABLE                1
274 #define OSC_REQUEST_ERROR               2
275 #define OSC_INVALID_UUID_ERROR          4
276 #define OSC_INVALID_REVISION_ERROR      8
277 #define OSC_CAPABILITIES_MASK_ERROR     16
278 
279 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
280 
281 /* platform-wide _OSC bits */
282 #define OSC_SB_PAD_SUPPORT              1
283 #define OSC_SB_PPC_OST_SUPPORT          2
284 #define OSC_SB_PR3_SUPPORT              4
285 #define OSC_SB_CPUHP_OST_SUPPORT        8
286 #define OSC_SB_APEI_SUPPORT             16
287 
288 extern bool osc_sb_apei_support_acked;
289 
290 /* PCI defined _OSC bits */
291 /* _OSC DW1 Definition (OS Support Fields) */
292 #define OSC_EXT_PCI_CONFIG_SUPPORT              1
293 #define OSC_ACTIVE_STATE_PWR_SUPPORT            2
294 #define OSC_CLOCK_PWR_CAPABILITY_SUPPORT        4
295 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          8
296 #define OSC_MSI_SUPPORT                         16
297 #define OSC_PCI_SUPPORT_MASKS                   0x1f
298 
299 /* _OSC DW1 Definition (OS Control Fields) */
300 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       1
301 #define OSC_SHPC_NATIVE_HP_CONTROL              2
302 #define OSC_PCI_EXPRESS_PME_CONTROL             4
303 #define OSC_PCI_EXPRESS_AER_CONTROL             8
304 #define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL   16
305 
306 #define OSC_PCI_CONTROL_MASKS   (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
307                                 OSC_SHPC_NATIVE_HP_CONTROL |            \
308                                 OSC_PCI_EXPRESS_PME_CONTROL |           \
309                                 OSC_PCI_EXPRESS_AER_CONTROL |           \
310                                 OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
311 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
312                                              u32 *mask, u32 req);
313 extern void acpi_early_init(void);
314 
315 #else   /* !CONFIG_ACPI */
316 
317 #define acpi_disabled 1
318 
319 static inline void acpi_early_init(void) { }
320 
321 static inline int early_acpi_boot_init(void)
322 {
323         return 0;
324 }
325 static inline int acpi_boot_init(void)
326 {
327         return 0;
328 }
329 
330 static inline void acpi_boot_table_init(void)
331 {
332         return;
333 }
334 
335 static inline int acpi_mps_check(void)
336 {
337         return 0;
338 }
339 
340 static inline int acpi_check_resource_conflict(struct resource *res)
341 {
342         return 0;
343 }
344 
345 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
346                                     const char *name)
347 {
348         return 0;
349 }
350 
351 struct acpi_table_header;
352 static inline int acpi_table_parse(char *id,
353                                 int (*handler)(struct acpi_table_header *))
354 {
355         return -1;
356 }
357 #endif  /* !CONFIG_ACPI */
358 
359 #ifdef CONFIG_ACPI_SLEEP
360 int suspend_nvs_register(unsigned long start, unsigned long size);
361 #else
362 static inline int suspend_nvs_register(unsigned long a, unsigned long b)
363 {
364         return 0;
365 }
366 #endif
367 
368 #endif  /*_LINUX_ACPI_H*/
369 

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