2 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
38 #include <sys/eventhandler.h>
41 #include <sys/mutex.h>
42 #include <sys/selinfo.h>
44 #include <sys/sysctl.h>
46 #include <machine/bus.h>
47 #include <machine/resource.h>
49 struct apm_clone_data;
52 struct cdev *acpi_dev_t;
56 int acpi_sleep_disabled;
57 int acpi_resources_reserved;
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;
72 int acpi_handle_reboot;
74 vm_offset_t acpi_wakeaddr;
75 vm_paddr_t acpi_wakephys;
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. */
85 ACPI_HANDLE ad_handle;
90 struct resource_list ad_rl;
93 /* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */
94 struct apm_clone_data {
95 STAILQ_ENTRY(apm_clone_data) entries;
98 #define ACPI_EVF_NONE 0 /* /dev/apm semantics */
99 #define ACPI_EVF_DEVD 1 /* /dev/acpi is handled via devd(8) */
100 #define ACPI_EVF_WRITE 2 /* Device instance is opened writable. */
102 #define APM_EV_NONE 0 /* Device not yet aware of pending sleep. */
103 #define APM_EV_NOTIFIED 1 /* Device saw next sleep state. */
104 #define APM_EV_ACKED 2 /* Device agreed sleep can occur. */
105 struct acpi_softc *acpi_sc;
106 struct selinfo sel_read;
109 #define ACPI_PRW_MAX_POWERRES 8
111 struct acpi_prw_data {
112 ACPI_HANDLE gpe_handle;
115 ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES];
119 /* Flags for each device defined in the AML namespace. */
120 #define ACPI_FLAG_WAKE_ENABLED 0x1
122 /* Macros for extracting parts of a PCI address from an _ADR value. */
123 #define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16)
124 #define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff)
127 * Entry points to ACPI from above are global functions defined in this
128 * file, sysctls, and I/O on the control device. Entry points from below
129 * are interrupts (the SCI), notifies, task queue threads, and the thermal
130 * zone polling thread.
132 * ACPI tables and global shared data are protected by a global lock
135 * Each ACPI device can have its own driver-specific mutex for protecting
136 * shared access to local data. The ACPI_LOCK macros handle mutexes.
138 * Drivers that need to serialize access to functions (e.g., to route
139 * interrupts, get/set control paths, etc.) should use the sx lock macros
142 * ACPI-CA handles its own locking and should not be called with locks held.
144 * The most complicated path is:
145 * GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE
147 extern struct mtx acpi_mutex;
148 #define ACPI_LOCK(sys) mtx_lock(&sys##_mutex)
149 #define ACPI_UNLOCK(sys) mtx_unlock(&sys##_mutex)
150 #define ACPI_LOCK_ASSERT(sys) mtx_assert(&sys##_mutex, MA_OWNED);
151 #define ACPI_LOCK_DECL(sys, name) \
152 static struct mtx sys##_mutex; \
153 MTX_SYSINIT(sys##_mutex, &sys##_mutex, name, MTX_DEF)
154 #define ACPI_SERIAL_BEGIN(sys) sx_xlock(&sys##_sxlock)
155 #define ACPI_SERIAL_END(sys) sx_xunlock(&sys##_sxlock)
156 #define ACPI_SERIAL_ASSERT(sys) sx_assert(&sys##_sxlock, SX_XLOCKED);
157 #define ACPI_SERIAL_DECL(sys, name) \
158 static struct sx sys##_sxlock; \
159 SX_SYSINIT(sys##_sxlock, &sys##_sxlock, name)
162 * ACPI CA does not define layers for non-ACPI CA drivers.
163 * We define some here within the range provided.
165 #define ACPI_AC_ADAPTER 0x00010000
166 #define ACPI_BATTERY 0x00020000
167 #define ACPI_BUS 0x00040000
168 #define ACPI_BUTTON 0x00080000
169 #define ACPI_EC 0x00100000
170 #define ACPI_FAN 0x00200000
171 #define ACPI_POWERRES 0x00400000
172 #define ACPI_PROCESSOR 0x00800000
173 #define ACPI_THERMAL 0x01000000
174 #define ACPI_TIMER 0x02000000
175 #define ACPI_OEM 0x04000000
178 * Constants for different interrupt models used with acpi_SetIntrModel().
180 #define ACPI_INTR_PIC 0
181 #define ACPI_INTR_APIC 1
182 #define ACPI_INTR_SAPIC 2
185 * Various features and capabilities for the acpi_get_features() method.
186 * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods.
187 * See the Intel document titled "Intel Processor Vendor-Specific ACPI",
190 #define ACPI_CAP_PERF_MSRS (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */
191 #define ACPI_CAP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */
192 #define ACPI_CAP_THR_MSRS (1 << 2) /* Intel OnDemand throttling MSRs */
193 #define ACPI_CAP_SMP_SAME (1 << 3) /* MP C1, Px, and Tx (all the same) */
194 #define ACPI_CAP_SMP_SAME_C3 (1 << 4) /* MP C2 and C3 (all the same) */
195 #define ACPI_CAP_SMP_DIFF_PX (1 << 5) /* MP Px (different, using _PSD) */
196 #define ACPI_CAP_SMP_DIFF_CX (1 << 6) /* MP Cx (different, using _CSD) */
197 #define ACPI_CAP_SMP_DIFF_TX (1 << 7) /* MP Tx (different, using _TSD) */
198 #define ACPI_CAP_SMP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */
199 #define ACPI_CAP_SMP_C3_NATIVE (1 << 9) /* MP C2 and C3 support */
200 #define ACPI_CAP_PX_HW_COORD (1 << 11) /* Intel P-state HW coordination */
205 * ACPI_Q_BROKEN: Disables all ACPI support.
206 * ACPI_Q_TIMER: Disables support for the ACPI timer.
207 * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
208 * first APIC and that the MADT should force that by ignoring the PC-AT
209 * compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
211 extern int acpi_quirks;
213 #define ACPI_Q_BROKEN (1 << 0)
214 #define ACPI_Q_TIMER (1 << 1)
215 #define ACPI_Q_MADT_IRQ0 (1 << 2)
218 * Note that the low ivar values are reserved to provide
219 * interface compatibility with ISA drivers which can also
222 #define ACPI_IVAR_HANDLE 0x100
223 #define ACPI_IVAR_UNUSED 0x101 /* Unused/reserved. */
224 #define ACPI_IVAR_PRIVATE 0x102
225 #define ACPI_IVAR_FLAGS 0x103
228 * Accessor functions for our ivars. Default value for BUS_READ_IVAR is
229 * (type) 0. The <sys/bus.h> accessor functions don't check return values.
231 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
233 static __inline type varp ## _get_ ## var(device_t dev) \
236 BUS_READ_IVAR(device_get_parent(dev), dev, \
237 ivarp ## _IVAR_ ## ivar, &v); \
241 static __inline void varp ## _set_ ## var(device_t dev, type t) \
243 uintptr_t v = (uintptr_t) t; \
244 BUS_WRITE_IVAR(device_get_parent(dev), dev, \
245 ivarp ## _IVAR_ ## ivar, v); \
248 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
249 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
250 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)
252 void acpi_fake_objhandler(ACPI_HANDLE h, void *data);
253 static __inline device_t
254 acpi_get_device(ACPI_HANDLE handle)
257 AcpiGetData(handle, acpi_fake_objhandler, &dev);
258 return ((device_t)dev);
261 static __inline ACPI_OBJECT_TYPE
262 acpi_get_type(device_t dev)
267 if ((h = acpi_get_handle(dev)) == NULL)
268 return (ACPI_TYPE_NOT_FOUND);
269 if (ACPI_FAILURE(AcpiGetType(h, &t)))
270 return (ACPI_TYPE_NOT_FOUND);
274 /* Find the difference between two PM tick counts. */
275 static __inline uint32_t
276 acpi_TimerDelta(uint32_t end, uint32_t start)
279 if (end < start && (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) == 0)
281 return (end - start);
285 void acpi_EnterDebugger(void);
289 #include <sys/cons.h>
290 #define STEP(x) do {printf x, printf("\n"); cngetc();} while (0)
295 #define ACPI_VPRINT(dev, acpi_sc, x...) do { \
296 if (acpi_get_verbose(acpi_sc)) \
297 device_printf(dev, x); \
300 /* Values for the device _STA (status) method. */
301 #define ACPI_STA_PRESENT (1 << 0)
302 #define ACPI_STA_ENABLED (1 << 1)
303 #define ACPI_STA_SHOW_IN_UI (1 << 2)
304 #define ACPI_STA_FUNCTIONAL (1 << 3)
305 #define ACPI_STA_BATT_PRESENT (1 << 4)
307 #define ACPI_DEVINFO_PRESENT(x, flags) \
308 (((x) & (flags)) == (flags))
309 #define ACPI_DEVICE_PRESENT(x) \
310 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL)
311 #define ACPI_BATTERY_PRESENT(x) \
312 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \
313 ACPI_STA_BATT_PRESENT)
315 /* Callback function type for walking subtables within a table. */
316 typedef void acpi_subtable_handler(ACPI_SUBTABLE_HEADER *, void *);
318 BOOLEAN acpi_DeviceIsPresent(device_t dev);
319 BOOLEAN acpi_BatteryIsPresent(device_t dev);
320 ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
321 ACPI_HANDLE *result);
322 ACPI_BUFFER *acpi_AllocBuffer(int size);
323 ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
325 ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path,
327 ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path,
329 ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj,
330 void (*func)(ACPI_OBJECT *comp, void *arg), void *arg);
331 ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
332 ACPI_RESOURCE **resp);
333 ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf,
335 ACPI_STATUS acpi_OverrideInterruptLevel(UINT32 InterruptNumber);
336 ACPI_STATUS acpi_SetIntrModel(int model);
337 int acpi_ReqSleepState(struct acpi_softc *sc, int state);
338 int acpi_AckSleepState(struct apm_clone_data *clone, int error);
339 ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state);
340 int acpi_wake_set_enable(device_t dev, int enable);
341 int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
342 ACPI_STATUS acpi_Startup(void);
343 void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
345 int acpi_bus_alloc_gas(device_t dev, int *type, int *rid,
346 ACPI_GENERIC_ADDRESS *gas, struct resource **res,
348 void acpi_walk_subtables(void *first, void *end,
349 acpi_subtable_handler *handler, void *arg);
350 BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid);
352 struct acpi_parse_resource_set {
353 void (*set_init)(device_t dev, void *arg, void **context);
354 void (*set_done)(device_t dev, void *context);
355 void (*set_ioport)(device_t dev, void *context, uint64_t base,
357 void (*set_iorange)(device_t dev, void *context, uint64_t low,
358 uint64_t high, uint64_t length, uint64_t align);
359 void (*set_memory)(device_t dev, void *context, uint64_t base,
361 void (*set_memoryrange)(device_t dev, void *context, uint64_t low,
362 uint64_t high, uint64_t length, uint64_t align);
363 void (*set_irq)(device_t dev, void *context, uint8_t *irq,
364 int count, int trig, int pol);
365 void (*set_ext_irq)(device_t dev, void *context, uint32_t *irq,
366 int count, int trig, int pol);
367 void (*set_drq)(device_t dev, void *context, uint8_t *drq,
369 void (*set_start_dependent)(device_t dev, void *context,
371 void (*set_end_dependent)(device_t dev, void *context);
374 extern struct acpi_parse_resource_set acpi_res_parse_set;
376 int acpi_identify(void);
377 void acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
378 ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid,
379 struct resource *res, ACPI_RESOURCE *acpi_res);
380 ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
381 struct acpi_parse_resource_set *set, void *arg);
382 struct resource *acpi_alloc_sysres(device_t child, int type, int *rid,
383 u_long start, u_long end, u_long count, u_int flags);
385 /* ACPI event handling */
386 UINT32 acpi_event_power_button_sleep(void *context);
387 UINT32 acpi_event_power_button_wake(void *context);
388 UINT32 acpi_event_sleep_button_sleep(void *context);
389 UINT32 acpi_event_sleep_button_wake(void *context);
391 #define ACPI_EVENT_PRI_FIRST 0
392 #define ACPI_EVENT_PRI_DEFAULT 10000
393 #define ACPI_EVENT_PRI_LAST 20000
395 typedef void (*acpi_event_handler_t)(void *, int);
397 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
398 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);
400 /* Device power control. */
401 ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
402 ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);
403 int acpi_device_pwr_for_sleep(device_t bus, device_t dev,
407 void acpi_apm_init(struct acpi_softc *);
410 static __inline struct acpi_softc *
411 acpi_device_get_parent_softc(device_t child)
415 parent = device_get_parent(child);
418 return (device_get_softc(parent));
422 acpi_get_verbose(struct acpi_softc *sc)
425 return (sc->acpi_verbose);
429 char *acpi_name(ACPI_HANDLE handle);
430 int acpi_avoid(ACPI_HANDLE handle);
431 int acpi_disabled(char *subsys);
432 int acpi_machdep_init(device_t dev);
433 void acpi_install_wakeup_handler(struct acpi_softc *sc);
434 int acpi_sleep_machdep(struct acpi_softc *sc, int state);
435 int acpi_wakeup_machdep(struct acpi_softc *sc, int state,
436 int sleep_result, int intr_enabled);
437 int acpi_table_quirks(int *quirks);
438 int acpi_machdep_quirks(int *quirks);
440 /* Battery Abstraction. */
441 struct acpi_battinfo;
443 int acpi_battery_register(device_t dev);
444 int acpi_battery_remove(device_t dev);
445 int acpi_battery_get_units(void);
446 int acpi_battery_get_info_expire(void);
447 int acpi_battery_bst_valid(struct acpi_bst *bst);
448 int acpi_battery_bif_valid(struct acpi_bif *bif);
449 int acpi_battery_get_battinfo(device_t dev,
450 struct acpi_battinfo *info);
452 /* Embedded controller. */
453 void acpi_ec_ecdt_probe(device_t);
455 /* AC adapter interface. */
456 int acpi_acad_get_acline(int *);
458 /* Package manipulation convenience functions. */
459 #define ACPI_PKG_VALID(pkg, size) \
460 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \
461 (pkg)->Package.Count >= (size))
462 int acpi_PkgInt(ACPI_OBJECT *res, int idx, UINT64 *dst);
463 int acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst);
464 int acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size);
465 int acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type,
466 int *rid, struct resource **dst, u_int flags);
467 ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
470 * Base level for BUS_ADD_CHILD. Special devices are added at orders less
471 * than this, and normal devices at or above this level. This keeps the
472 * probe order sorted so that things like sysresource are available before
473 * their children need them.
475 #define ACPI_DEV_BASE_ORDER 100
477 /* Default maximum number of tasks to enqueue. */
478 #ifndef ACPI_MAX_TASKS
479 #define ACPI_MAX_TASKS MAX(32, MAXCPU * 2)
482 /* Default number of task queue threads to start. */
483 #ifndef ACPI_MAX_THREADS
484 #define ACPI_MAX_THREADS 3
487 /* Use the device logging level for ktr(4). */
488 #define KTR_ACPI KTR_DEV
490 SYSCTL_DECL(_debug_acpi);
493 #endif /* !_ACPIVAR_H_ */