1 /*-
2 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #ifndef _ACPIVAR_H_
30 #define _ACPIVAR_H_
31
32 #ifdef _KERNEL
33
34 #include "acpi_if.h"
35 #include "bus_if.h"
36 #include <sys/_eventhandler.h>
37 #ifdef INTRNG
38 #include <sys/intr.h>
39 #endif
40 #include <sys/ktr.h>
41 #include <sys/lock.h>
42 #include <sys/mutex.h>
43 #include <sys/selinfo.h>
44 #include <sys/sx.h>
45 #include <sys/sysctl.h>
46
47 #include <machine/bus.h>
48 #include <machine/resource.h>
49
50 struct apm_clone_data;
51 struct acpi_softc {
52 device_t acpi_dev;
53 struct cdev *acpi_dev_t;
54
55 int acpi_enabled;
56 int acpi_sstate;
57 int acpi_sleep_disabled;
58
59 struct sysctl_ctx_list acpi_sysctl_ctx;
60 struct sysctl_oid *acpi_sysctl_tree;
61 int acpi_power_button_sx;
62 int acpi_sleep_button_sx;
63 int acpi_lid_switch_sx;
64
65 int acpi_standby_sx;
66 int acpi_suspend_sx;
67
68 int acpi_sleep_delay;
69 int acpi_s4bios;
70 int acpi_do_disable;
71 int acpi_verbose;
72 int acpi_handle_reboot;
73
74 vm_offset_t acpi_wakeaddr;
75 vm_paddr_t acpi_wakephys;
76
77 int acpi_next_sstate; /* Next suspend Sx state. */
78 struct apm_clone_data *acpi_clone; /* Pseudo-dev for devd(8). */
79 STAILQ_HEAD(,apm_clone_data) apm_cdevs; /* All apm/apmctl/acpi cdevs. */
80 struct callout susp_force_to; /* Force suspend if no acks. */
81
82 /* System Resources */
83 struct resource_list sysres_rl;
84 };
85
86 struct acpi_device {
87 /* ACPI ivars */
88 ACPI_HANDLE ad_handle;
89 void *ad_private;
90 int ad_flags;
91 int ad_cls_class;
92 int ad_domain;
93
94 ACPI_BUFFER dsd; /* Device Specific Data */
95 const ACPI_OBJECT *dsd_pkg;
96
97 /* Resources */
98 struct resource_list ad_rl;
99 };
100
101 #ifdef INTRNG
102 struct intr_map_data_acpi {
103 struct intr_map_data hdr;
104 u_int irq;
105 u_int pol;
106 u_int trig;
107 };
108
109 #endif
110
111 /* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */
112 struct apm_clone_data {
113 STAILQ_ENTRY(apm_clone_data) entries;
114 struct cdev *cdev;
115 int flags;
116 #define ACPI_EVF_NONE 0 /* /dev/apm semantics */
117 #define ACPI_EVF_DEVD 1 /* /dev/acpi is handled via devd(8) */
118 #define ACPI_EVF_WRITE 2 /* Device instance is opened writable. */
119 int notify_status;
120 #define APM_EV_NONE 0 /* Device not yet aware of pending sleep. */
121 #define APM_EV_NOTIFIED 1 /* Device saw next sleep state. */
122 #define APM_EV_ACKED 2 /* Device agreed sleep can occur. */
123 struct acpi_softc *acpi_sc;
124 struct selinfo sel_read;
125 };
126
127 #define ACPI_PRW_MAX_POWERRES 8
128
129 struct acpi_prw_data {
130 ACPI_HANDLE gpe_handle;
131 int gpe_bit;
132 int lowest_wake;
133 ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES];
134 int power_res_count;
135 };
136
137 /* Flags for each device defined in the AML namespace. */
138 #define ACPI_FLAG_WAKE_ENABLED 0x1
139
140 /* Macros for extracting parts of a PCI address from an _ADR value. */
141 #define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16)
142 #define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff)
143
144 /*
145 * Entry points to ACPI from above are global functions defined in this
146 * file, sysctls, and I/O on the control device. Entry points from below
147 * are interrupts (the SCI), notifies, task queue threads, and the thermal
148 * zone polling thread.
149 *
150 * ACPI tables and global shared data are protected by a global lock
151 * (acpi_mutex).
152 *
153 * Each ACPI device can have its own driver-specific mutex for protecting
154 * shared access to local data. The ACPI_LOCK macros handle mutexes.
155 *
156 * Drivers that need to serialize access to functions (e.g., to route
157 * interrupts, get/set control paths, etc.) should use the sx lock macros
158 * (ACPI_SERIAL).
159 *
160 * ACPI-CA handles its own locking and should not be called with locks held.
161 *
162 * The most complicated path is:
163 * GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE
164 */
165 extern struct mtx acpi_mutex;
166 #define ACPI_LOCK(sys) mtx_lock(&sys##_mutex)
167 #define ACPI_UNLOCK(sys) mtx_unlock(&sys##_mutex)
168 #define ACPI_LOCK_ASSERT(sys) mtx_assert(&sys##_mutex, MA_OWNED);
169 #define ACPI_LOCK_DECL(sys, name) \
170 static struct mtx sys##_mutex; \
171 MTX_SYSINIT(sys##_mutex, &sys##_mutex, name, MTX_DEF)
172 #define ACPI_SERIAL_BEGIN(sys) sx_xlock(&sys##_sxlock)
173 #define ACPI_SERIAL_END(sys) sx_xunlock(&sys##_sxlock)
174 #define ACPI_SERIAL_ASSERT(sys) sx_assert(&sys##_sxlock, SX_XLOCKED);
175 #define ACPI_SERIAL_DECL(sys, name) \
176 static struct sx sys##_sxlock; \
177 SX_SYSINIT(sys##_sxlock, &sys##_sxlock, name)
178
179 /*
180 * ACPI CA does not define layers for non-ACPI CA drivers.
181 * We define some here within the range provided.
182 */
183 #define ACPI_AC_ADAPTER 0x00010000
184 #define ACPI_BATTERY 0x00020000
185 #define ACPI_BUS 0x00040000
186 #define ACPI_BUTTON 0x00080000
187 #define ACPI_EC 0x00100000
188 #define ACPI_FAN 0x00200000
189 #define ACPI_POWERRES 0x00400000
190 #define ACPI_PROCESSOR 0x00800000
191 #define ACPI_THERMAL 0x01000000
192 #define ACPI_TIMER 0x02000000
193 #define ACPI_OEM 0x04000000
194
195 /*
196 * Constants for different interrupt models used with acpi_SetIntrModel().
197 */
198 #define ACPI_INTR_PIC 0
199 #define ACPI_INTR_APIC 1
200 #define ACPI_INTR_SAPIC 2
201
202 /*
203 * Various features and capabilities for the acpi_get_features() method.
204 * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods.
205 * See the Intel document titled "Intel Processor Vendor-Specific ACPI",
206 * number 302223-007.
207 */
208 #define ACPI_CAP_PERF_MSRS (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */
209 #define ACPI_CAP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */
210 #define ACPI_CAP_THR_MSRS (1 << 2) /* Intel OnDemand throttling MSRs */
211 #define ACPI_CAP_SMP_SAME (1 << 3) /* MP C1, Px, and Tx (all the same) */
212 #define ACPI_CAP_SMP_SAME_C3 (1 << 4) /* MP C2 and C3 (all the same) */
213 #define ACPI_CAP_SMP_DIFF_PX (1 << 5) /* MP Px (different, using _PSD) */
214 #define ACPI_CAP_SMP_DIFF_CX (1 << 6) /* MP Cx (different, using _CSD) */
215 #define ACPI_CAP_SMP_DIFF_TX (1 << 7) /* MP Tx (different, using _TSD) */
216 #define ACPI_CAP_SMP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */
217 #define ACPI_CAP_SMP_C3_NATIVE (1 << 9) /* MP C2 and C3 support */
218 #define ACPI_CAP_PX_HW_COORD (1 << 11) /* Intel P-state HW coordination */
219 #define ACPI_CAP_INTR_CPPC (1 << 12) /* Native Interrupt Handling for
220 Collaborative Processor Performance Control notifications */
221 #define ACPI_CAP_HW_DUTY_C (1 << 13) /* Hardware Duty Cycling */
222
223 /*
224 * Quirk flags.
225 *
226 * ACPI_Q_BROKEN: Disables all ACPI support.
227 * ACPI_Q_TIMER: Disables support for the ACPI timer.
228 * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
229 * first APIC and that the MADT should force that by ignoring the PC-AT
230 * compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
231 * ACPI_Q_AEI_NOPULL: Specifies that _AEI objects incorrectly designate pins
232 * as "PullUp" and they should be treated as "NoPull" instead.
233 * ACPI_Q_CLEAR_PME_ON_DETACH: Specifies that PCIM_PSTAT_(PME & ~PMEENABLE)
234 * should be written to the power status register as part of ACPI Eject.
235 * ACPI_Q_DELAY_BEFORE_EJECT_RESCAN: Specifies that we need a short (10ms)
236 * delay after _EJ0 returns before rescanning the PCI bus.
237 */
238 extern int acpi_quirks;
239 #define ACPI_Q_OK 0
240 #define ACPI_Q_BROKEN (1 << 0)
241 #define ACPI_Q_TIMER (1 << 1)
242 #define ACPI_Q_MADT_IRQ0 (1 << 2)
243 #define ACPI_Q_AEI_NOPULL (1 << 3)
244 #define ACPI_Q_CLEAR_PME_ON_DETACH (1 << 4)
245 #define ACPI_Q_DELAY_BEFORE_EJECT_RESCAN (1 << 5)
246
247 #if defined(__amd64__) || defined(__i386__)
248 /*
249 * Certain Intel BIOSes have buggy AML that specify an IRQ that is
250 * edge-sensitive and active-lo. Normally, edge-sensitive IRQs should
251 * be active-hi. If this value is non-zero, edge-sensitive ISA IRQs
252 * are forced to be active-hi instead. At least some AMD systems use
253 * active-lo edge-sensitive ISA IRQs, so this setting is only enabled
254 * by default on systems with Intel CPUs.
255 */
256 extern int acpi_override_isa_irq_polarity;
257 #endif
258
259 /*
260 * Plug and play information for device matching. Matching table format
261 * is compatible with ids parameter of ACPI_ID_PROBE bus method.
262 *
263 * XXX: While ACPI_ID_PROBE matches against _HID and all _CIDs, current
264 * acpi_pnpinfo() exports only _HID and first _CID. That means second
265 * and further _CIDs should be added to both acpi_pnpinfo() and
266 * ACPICOMPAT_PNP_INFO if device matching against them is required.
267 */
268 #define ACPICOMPAT_PNP_INFO(t, busname) \
269 MODULE_PNP_INFO("Z:_HID", busname, t##hid, t, nitems(t)-1); \
270 MODULE_PNP_INFO("Z:_CID", busname, t##cid, t, nitems(t)-1);
271 #define ACPI_PNP_INFO(t) ACPICOMPAT_PNP_INFO(t, acpi)
272
273 /*
274 * Note that the low ivar values are reserved to provide
275 * interface compatibility with ISA drivers which can also
276 * attach to ACPI.
277 */
278 #define ACPI_IVAR_HANDLE 0x100
279 #define ACPI_IVAR_UNUSED 0x101 /* Unused/reserved. */
280 #define ACPI_IVAR_PRIVATE 0x102
281 #define ACPI_IVAR_FLAGS 0x103
282 #define ACPI_IVAR_DOMAIN 0x104
283
284 /*
285 * ad_domain NUMA domain special value.
286 */
287 #define ACPI_DEV_DOMAIN_UNKNOWN (-1)
288
289 /*
290 * Accessor functions for our ivars. Default value for BUS_READ_IVAR is
291 * (type) 0. The <sys/bus.h> accessor functions don't check return values.
292 */
293 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
294 \
295 static __inline type varp ## _get_ ## var(device_t dev) \
296 { \
297 uintptr_t v = 0; \
298 BUS_READ_IVAR(device_get_parent(dev), dev, \
299 ivarp ## _IVAR_ ## ivar, &v); \
300 return ((type) v); \
301 } \
302 \
303 static __inline void varp ## _set_ ## var(device_t dev, type t) \
304 { \
305 uintptr_t v = (uintptr_t) t; \
306 BUS_WRITE_IVAR(device_get_parent(dev), dev, \
307 ivarp ## _IVAR_ ## ivar, v); \
308 }
309
310 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
311 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
312 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)
313 __ACPI_BUS_ACCESSOR(acpi, domain, ACPI, DOMAIN, int)
314
315 void acpi_fake_objhandler(ACPI_HANDLE h, void *data);
316 static __inline device_t
acpi_get_device(ACPI_HANDLE handle)317 acpi_get_device(ACPI_HANDLE handle)
318 {
319 void *dev = NULL;
320 AcpiGetData(handle, acpi_fake_objhandler, &dev);
321 return ((device_t)dev);
322 }
323
324 static __inline ACPI_OBJECT_TYPE
acpi_get_type(device_t dev)325 acpi_get_type(device_t dev)
326 {
327 ACPI_HANDLE h;
328 ACPI_OBJECT_TYPE t;
329
330 if ((h = acpi_get_handle(dev)) == NULL)
331 return (ACPI_TYPE_NOT_FOUND);
332 if (ACPI_FAILURE(AcpiGetType(h, &t)))
333 return (ACPI_TYPE_NOT_FOUND);
334 return (t);
335 }
336
337 /* Find the difference between two PM tick counts. */
338 static __inline uint32_t
acpi_TimerDelta(uint32_t end,uint32_t start)339 acpi_TimerDelta(uint32_t end, uint32_t start)
340 {
341
342 if (end < start && (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) == 0)
343 end |= 0x01000000;
344 return (end - start);
345 }
346
347 #ifdef ACPI_DEBUGGER
348 void acpi_EnterDebugger(void);
349 #endif
350
351 #ifdef ACPI_DEBUG
352 #include <sys/cons.h>
353 #define STEP(x) do {printf x, printf("\n"); cngetc();} while (0)
354 #else
355 #define STEP(x)
356 #endif
357
358 #define ACPI_VPRINT(dev, acpi_sc, x...) do { \
359 if (acpi_get_verbose(acpi_sc)) \
360 device_printf(dev, x); \
361 } while (0)
362
363 /* Values for the first status word returned by _OSC. */
364 #define ACPI_OSC_FAILURE (1 << 1)
365 #define ACPI_OSC_BAD_UUID (1 << 2)
366 #define ACPI_OSC_BAD_REVISION (1 << 3)
367 #define ACPI_OSC_CAPS_MASKED (1 << 4)
368
369 #define ACPI_DEVINFO_PRESENT(x, flags) \
370 (((x) & (flags)) == (flags))
371 #define ACPI_DEVICE_PRESENT(x) \
372 ACPI_DEVINFO_PRESENT(x, ACPI_STA_DEVICE_PRESENT | \
373 ACPI_STA_DEVICE_FUNCTIONING)
374 #define ACPI_BATTERY_PRESENT(x) \
375 ACPI_DEVINFO_PRESENT(x, ACPI_STA_DEVICE_PRESENT | \
376 ACPI_STA_DEVICE_FUNCTIONING | ACPI_STA_BATTERY_PRESENT)
377
378 /* Callback function type for walking subtables within a table. */
379 typedef void acpi_subtable_handler(ACPI_SUBTABLE_HEADER *, void *);
380
381 BOOLEAN acpi_DeviceIsPresent(device_t dev);
382 BOOLEAN acpi_BatteryIsPresent(device_t dev);
383 ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
384 ACPI_HANDLE *result);
385 ACPI_STATUS acpi_GetProperty(device_t dev, ACPI_STRING propname,
386 const ACPI_OBJECT **value);
387 ACPI_BUFFER *acpi_AllocBuffer(int size);
388 ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
389 UINT32 *number);
390 ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path,
391 UINT32 *number);
392 ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path,
393 UINT32 number);
394 ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj,
395 void (*func)(ACPI_OBJECT *comp, void *arg), void *arg);
396 ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
397 ACPI_RESOURCE **resp);
398 ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf,
399 ACPI_RESOURCE *res);
400 UINT64 acpi_DSMQuery(ACPI_HANDLE h, const uint8_t *uuid,
401 int revision);
402 ACPI_STATUS acpi_EvaluateDSM(ACPI_HANDLE handle, const uint8_t *uuid,
403 int revision, UINT64 function, ACPI_OBJECT *package,
404 ACPI_BUFFER *out_buf);
405 ACPI_STATUS acpi_EvaluateDSMTyped(ACPI_HANDLE handle,
406 const uint8_t *uuid, int revision, UINT64 function,
407 ACPI_OBJECT *package, ACPI_BUFFER *out_buf,
408 ACPI_OBJECT_TYPE type);
409 ACPI_STATUS acpi_EvaluateOSC(ACPI_HANDLE handle, uint8_t *uuid,
410 int revision, int count, uint32_t *caps_in,
411 uint32_t *caps_out, bool query);
412 ACPI_STATUS acpi_OverrideInterruptLevel(UINT32 InterruptNumber);
413 ACPI_STATUS acpi_SetIntrModel(int model);
414 int acpi_ReqSleepState(struct acpi_softc *sc, int state);
415 int acpi_AckSleepState(struct apm_clone_data *clone, int error);
416 ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state);
417 int acpi_wake_set_enable(device_t dev, int enable);
418 int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
419 ACPI_STATUS acpi_Startup(void);
420 void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
421 uint8_t notify);
422 int acpi_bus_alloc_gas(device_t dev, int *type, int *rid,
423 ACPI_GENERIC_ADDRESS *gas, struct resource **res,
424 u_int flags);
425 void acpi_walk_subtables(void *first, void *end,
426 acpi_subtable_handler *handler, void *arg);
427 BOOLEAN acpi_has_hid(ACPI_HANDLE handle);
428 int acpi_MatchHid(ACPI_HANDLE h, const char *hid);
429 #define ACPI_MATCHHID_NOMATCH 0
430 #define ACPI_MATCHHID_HID 1
431 #define ACPI_MATCHHID_CID 2
432
433 static __inline bool
acpi_HasProperty(device_t dev,ACPI_STRING propname)434 acpi_HasProperty(device_t dev, ACPI_STRING propname)
435 {
436
437 return ACPI_SUCCESS(acpi_GetProperty(dev, propname, NULL));
438 }
439
440 struct acpi_parse_resource_set {
441 void (*set_init)(device_t dev, void *arg, void **context);
442 void (*set_done)(device_t dev, void *context);
443 void (*set_ioport)(device_t dev, void *context, uint64_t base,
444 uint64_t length);
445 void (*set_iorange)(device_t dev, void *context, uint64_t low,
446 uint64_t high, uint64_t length, uint64_t align);
447 void (*set_memory)(device_t dev, void *context, uint64_t base,
448 uint64_t length);
449 void (*set_memoryrange)(device_t dev, void *context, uint64_t low,
450 uint64_t high, uint64_t length, uint64_t align);
451 void (*set_irq)(device_t dev, void *context, uint8_t *irq,
452 int count, int trig, int pol);
453 void (*set_ext_irq)(device_t dev, void *context, uint32_t *irq,
454 int count, int trig, int pol);
455 void (*set_drq)(device_t dev, void *context, uint8_t *drq,
456 int count);
457 void (*set_start_dependent)(device_t dev, void *context,
458 int preference);
459 void (*set_end_dependent)(device_t dev, void *context);
460 };
461
462 extern struct acpi_parse_resource_set acpi_res_parse_set;
463
464 int acpi_identify(void);
465 void acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
466 #ifdef INTRNG
467 int acpi_map_intr(device_t dev, u_int irq, ACPI_HANDLE handle);
468 #endif
469 ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid,
470 struct resource *res, ACPI_RESOURCE *acpi_res);
471 ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
472 struct acpi_parse_resource_set *set, void *arg);
473
474 /* ACPI event handling */
475 UINT32 acpi_event_power_button_sleep(void *context);
476 UINT32 acpi_event_power_button_wake(void *context);
477 UINT32 acpi_event_sleep_button_sleep(void *context);
478 UINT32 acpi_event_sleep_button_wake(void *context);
479
480 #define ACPI_EVENT_PRI_FIRST 0
481 #define ACPI_EVENT_PRI_DEFAULT 10000
482 #define ACPI_EVENT_PRI_LAST 20000
483
484 typedef void (*acpi_event_handler_t)(void *, int);
485
486 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
487 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);
488 EVENTHANDLER_DECLARE(acpi_acad_event, acpi_event_handler_t);
489 EVENTHANDLER_DECLARE(acpi_video_event, acpi_event_handler_t);
490
491 /* Device power control. */
492 ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
493 ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);
494 acpi_pwr_for_sleep_t acpi_device_pwr_for_sleep;
495 int acpi_set_powerstate(device_t child, int state);
496
497 /* APM emulation */
498 void acpi_apm_init(struct acpi_softc *);
499
500 /* Misc. */
501 static __inline struct acpi_softc *
acpi_device_get_parent_softc(device_t child)502 acpi_device_get_parent_softc(device_t child)
503 {
504 device_t parent;
505
506 parent = device_get_parent(child);
507 if (parent == NULL)
508 return (NULL);
509 return (device_get_softc(parent));
510 }
511
512 static __inline int
acpi_get_verbose(struct acpi_softc * sc)513 acpi_get_verbose(struct acpi_softc *sc)
514 {
515 if (sc)
516 return (sc->acpi_verbose);
517 return (0);
518 }
519
520 char *acpi_name(ACPI_HANDLE handle);
521 int acpi_avoid(ACPI_HANDLE handle);
522 int acpi_disabled(char *subsys);
523 int acpi_get_acpi_device_path(device_t bus, device_t child,
524 const char *locator, struct sbuf *sb);
525 int acpi_machdep_init(device_t dev);
526 void acpi_install_wakeup_handler(struct acpi_softc *sc);
527 int acpi_sleep_machdep(struct acpi_softc *sc, int state);
528 int acpi_wakeup_machdep(struct acpi_softc *sc, int state,
529 int sleep_result, int intr_enabled);
530 int acpi_table_quirks(int *quirks);
531 int acpi_machdep_quirks(int *quirks);
532 int acpi_pnpinfo(ACPI_HANDLE handle, struct sbuf *sb);
533
534 uint32_t hpet_get_uid(device_t dev);
535
536 /* Battery Abstraction. */
537 struct acpi_battinfo;
538
539 int acpi_battery_register(device_t dev);
540 int acpi_battery_remove(device_t dev);
541 int acpi_battery_get_units(void);
542 int acpi_battery_get_info_expire(void);
543 int acpi_battery_bst_valid(struct acpi_bst *bst);
544 int acpi_battery_bix_valid(struct acpi_bix *bix);
545 int acpi_battery_get_battinfo(device_t dev,
546 struct acpi_battinfo *info);
547
548 /* Embedded controller. */
549 void acpi_ec_ecdt_probe(device_t);
550
551 /* AC adapter interface. */
552 int acpi_acad_get_acline(int *);
553
554 /* Package manipulation convenience functions. */
555 #define ACPI_PKG_VALID(pkg, size) \
556 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \
557 (pkg)->Package.Count >= (size))
558 #define ACPI_PKG_VALID_EQ(pkg, size) \
559 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \
560 (pkg)->Package.Count == (size))
561 int acpi_PkgInt(ACPI_OBJECT *res, int idx, UINT64 *dst);
562 int acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst);
563 int acpi_PkgInt16(ACPI_OBJECT *res, int idx, uint16_t *dst);
564 int acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size);
565 int acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type,
566 int *rid, struct resource **dst, u_int flags);
567 int acpi_PkgFFH_IntelCpu(ACPI_OBJECT *res, int idx, int *vendor,
568 int *class, uint64_t *address, int *accsize);
569 ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
570
571 /*
572 * Base level for BUS_ADD_CHILD. Special devices are added at orders less
573 * than this, and normal devices at or above this level. This keeps the
574 * probe order sorted so that things like sysresource are available before
575 * their children need them.
576 */
577 #define ACPI_DEV_BASE_ORDER 100
578
579 /* Default maximum number of tasks to enqueue. */
580 #ifndef ACPI_MAX_TASKS
581 #define ACPI_MAX_TASKS MAX(32, MAXCPU * 4)
582 #endif
583
584 /* Default number of task queue threads to start. */
585 #ifndef ACPI_MAX_THREADS
586 #define ACPI_MAX_THREADS 3
587 #endif
588
589 /* Use the device logging level for ktr(4). */
590 #define KTR_ACPI KTR_DEV
591
592 SYSCTL_DECL(_debug_acpi);
593
594 /*
595 * Parse and use proximity information in SRAT and SLIT.
596 */
597 int acpi_pxm_init(int ncpus, vm_paddr_t maxphys);
598 void acpi_pxm_parse_tables(void);
599 void acpi_pxm_set_mem_locality(void);
600 void acpi_pxm_set_cpu_locality(void);
601 int acpi_pxm_get_cpu_locality(int apic_id);
602 int acpi_pxm_parse(device_t dev);
603
604 /*
605 * Map a PXM to a VM domain.
606 *
607 * Returns the VM domain ID if found, or -1 if not found / invalid.
608 */
609 int acpi_map_pxm_to_vm_domainid(int pxm);
610 bus_get_cpus_t acpi_get_cpus;
611
612 #ifdef __aarch64__
613 /*
614 * ARM specific ACPI interfaces, relating to IORT table.
615 */
616 int acpi_iort_map_pci_msi(u_int seg, u_int rid, u_int *xref, u_int *devid);
617 int acpi_iort_map_pci_smmuv3(u_int seg, u_int rid, u_int *xref, u_int *devid);
618 int acpi_iort_its_lookup(u_int its_id, u_int *xref, int *pxm);
619 int acpi_iort_map_named_msi(const char *devname, u_int rid, u_int *xref,
620 u_int *devid);
621 int acpi_iort_map_named_smmuv3(const char *devname, u_int rid, u_int *xref,
622 u_int *devid);
623 #endif
624 #endif /* _KERNEL */
625 #endif /* !_ACPIVAR_H_ */
626