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
114 extern int sbf_port;
115 extern unsigned long acpi_realmode_flags;
116
117 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
118 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
119 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
120
121 #ifdef CONFIG_X86_IO_APIC
122 extern 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 */
131 void acpi_unregister_gsi (u32 gsi);
132
133 struct pci_dev;
134
135 int acpi_pci_irq_enable (struct pci_dev *dev);
136 void acpi_penalize_isa_irq(int irq, int active);
137
138 void acpi_pci_irq_disable (struct pci_dev *dev);
139
140 struct acpi_pci_driver {
141 struct acpi_pci_driver *next;
142 int (*add)(acpi_handle handle);
143 void (*remove)(acpi_handle handle);
144 };
145
146 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
147 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
148
149 extern int ec_read(u8 addr, u8 *val);
150 extern int ec_write(u8 addr, u8 val);
151 extern int ec_transaction(u8 command,
152 const u8 *wdata, unsigned wdata_len,
153 u8 *rdata, unsigned rdata_len);
154 extern acpi_handle ec_get_handle(void);
155
156 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
157
158 typedef void (*wmi_notify_handler) (u32 value, void *context);
159
160 extern 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);
164 extern acpi_status wmi_query_block(const char *guid, u8 instance,
165 struct acpi_buffer *out);
166 extern acpi_status wmi_set_block(const char *guid, u8 instance,
167 const struct acpi_buffer *in);
168 extern acpi_status wmi_install_notify_handler(const char *guid,
169 wmi_notify_handler handler, void *data);
170 extern acpi_status wmi_remove_notify_handler(const char *guid);
171 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
172 extern 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
191 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
192 extern long acpi_is_video_device(struct acpi_device *device);
193 extern int acpi_video_backlight_support(void);
194 extern int acpi_video_display_switch_support(void);
195
196 #else
197
acpi_video_get_capabilities(acpi_handle graphics_dev_handle)198 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
199 {
200 return 0;
201 }
202
acpi_is_video_device(struct acpi_device * device)203 static inline long acpi_is_video_device(struct acpi_device *device)
204 {
205 return 0;
206 }
207
acpi_video_backlight_support(void)208 static inline int acpi_video_backlight_support(void)
209 {
210 return 0;
211 }
212
acpi_video_display_switch_support(void)213 static 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
220 extern int acpi_blacklisted(void);
221 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
222 extern void acpi_osi_setup(char *str);
223
224 #ifdef CONFIG_ACPI_NUMA
225 int acpi_get_pxm(acpi_handle handle);
226 int acpi_get_node(acpi_handle *handle);
227 #else
acpi_get_pxm(acpi_handle handle)228 static inline int acpi_get_pxm(acpi_handle handle)
229 {
230 return 0;
231 }
acpi_get_node(acpi_handle * handle)232 static inline int acpi_get_node(acpi_handle *handle)
233 {
234 return 0;
235 }
236 #endif
237 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
238
239 extern int pnpacpi_disabled;
240
241 #define PXM_INVAL (-1)
242
243 int acpi_check_resource_conflict(const struct resource *res);
244
245 int acpi_check_region(resource_size_t start, resource_size_t n,
246 const char *name);
247
248 int acpi_resources_are_enforced(void);
249
250 #ifdef CONFIG_PM_SLEEP
251 void __init acpi_no_s4_hw_signature(void);
252 void __init acpi_old_suspend_ordering(void);
253 void __init acpi_nvs_nosave(void);
254 #endif /* CONFIG_PM_SLEEP */
255
256 struct acpi_osc_context {
257 char *uuid_str; /* uuid string */
258 int rev;
259 struct acpi_buffer cap; /* arg2/arg3 */
260 struct acpi_buffer ret; /* free by caller if success */
261 };
262
263 #define OSC_QUERY_TYPE 0
264 #define OSC_SUPPORT_TYPE 1
265 #define OSC_CONTROL_TYPE 2
266
267 /* _OSC DW0 Definition */
268 #define OSC_QUERY_ENABLE 1
269 #define OSC_REQUEST_ERROR 2
270 #define OSC_INVALID_UUID_ERROR 4
271 #define OSC_INVALID_REVISION_ERROR 8
272 #define OSC_CAPABILITIES_MASK_ERROR 16
273
274 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
275
276 /* platform-wide _OSC bits */
277 #define OSC_SB_PAD_SUPPORT 1
278 #define OSC_SB_PPC_OST_SUPPORT 2
279 #define OSC_SB_PR3_SUPPORT 4
280 #define OSC_SB_CPUHP_OST_SUPPORT 8
281 #define OSC_SB_APEI_SUPPORT 16
282
283 extern bool osc_sb_apei_support_acked;
284
285 /* PCI defined _OSC bits */
286 /* _OSC DW1 Definition (OS Support Fields) */
287 #define OSC_EXT_PCI_CONFIG_SUPPORT 1
288 #define OSC_ACTIVE_STATE_PWR_SUPPORT 2
289 #define OSC_CLOCK_PWR_CAPABILITY_SUPPORT 4
290 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 8
291 #define OSC_MSI_SUPPORT 16
292 #define OSC_PCI_SUPPORT_MASKS 0x1f
293
294 /* _OSC DW1 Definition (OS Control Fields) */
295 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 1
296 #define OSC_SHPC_NATIVE_HP_CONTROL 2
297 #define OSC_PCI_EXPRESS_PME_CONTROL 4
298 #define OSC_PCI_EXPRESS_AER_CONTROL 8
299 #define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL 16
300
301 #define OSC_PCI_CONTROL_MASKS (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | \
302 OSC_SHPC_NATIVE_HP_CONTROL | \
303 OSC_PCI_EXPRESS_PME_CONTROL | \
304 OSC_PCI_EXPRESS_AER_CONTROL | \
305 OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
306
307 #define OSC_PCI_NATIVE_HOTPLUG (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | \
308 OSC_SHPC_NATIVE_HP_CONTROL)
309
310 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
311 u32 *mask, u32 req);
312 extern void acpi_early_init(void);
313
314 extern int acpi_nvs_register(__u64 start, __u64 size);
315
316 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
317 void *data);
318
319 #else /* !CONFIG_ACPI */
320
321 #define acpi_disabled 1
322
acpi_early_init(void)323 static inline void acpi_early_init(void) { }
324
early_acpi_boot_init(void)325 static inline int early_acpi_boot_init(void)
326 {
327 return 0;
328 }
acpi_boot_init(void)329 static inline int acpi_boot_init(void)
330 {
331 return 0;
332 }
333
acpi_boot_table_init(void)334 static inline void acpi_boot_table_init(void)
335 {
336 return;
337 }
338
acpi_mps_check(void)339 static inline int acpi_mps_check(void)
340 {
341 return 0;
342 }
343
acpi_check_resource_conflict(struct resource * res)344 static inline int acpi_check_resource_conflict(struct resource *res)
345 {
346 return 0;
347 }
348
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)349 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
350 const char *name)
351 {
352 return 0;
353 }
354
355 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))356 static inline int acpi_table_parse(char *id,
357 int (*handler)(struct acpi_table_header *))
358 {
359 return -1;
360 }
361
acpi_nvs_register(__u64 start,__u64 size)362 static inline int acpi_nvs_register(__u64 start, __u64 size)
363 {
364 return 0;
365 }
366
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)367 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
368 void *data)
369 {
370 return 0;
371 }
372
373 #endif /* !CONFIG_ACPI */
374
375 #ifdef CONFIG_ACPI
376 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
377 u32 pm1a_ctrl, u32 pm1b_ctrl));
378
379 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
380 u32 pm1a_control, u32 pm1b_control);
381 #else
382 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
383 #endif
384
385 #endif /*_LINUX_ACPI_H*/
386