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 * $FreeBSD$
29 */
30
31 #ifndef _ACPIVAR_H_
32 #define _ACPIVAR_H_
33
34 #ifdef _KERNEL
35
36 #include "acpi_if.h"
37 #include "bus_if.h"
38 #include <sys/eventhandler.h>
39 #include <sys/ktr.h>
40 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/sx.h>
43 #include <sys/sysctl.h>
44
45 #include <machine/bus.h>
46 #include <machine/resource.h>
47
48 struct acpi_softc {
49 device_t acpi_dev;
50 struct cdev *acpi_dev_t;
51
52 struct resource *acpi_irq;
53 int acpi_irq_rid;
54 void *acpi_irq_handle;
55
56 int acpi_enabled;
57 int acpi_sstate;
58 int acpi_sleep_disabled;
59
60 struct sysctl_ctx_list acpi_sysctl_ctx;
61 struct sysctl_oid *acpi_sysctl_tree;
62 int acpi_power_button_sx;
63 int acpi_sleep_button_sx;
64 int acpi_lid_switch_sx;
65
66 int acpi_standby_sx;
67 int acpi_suspend_sx;
68
69 int acpi_sleep_delay;
70 int acpi_s4bios;
71 int acpi_do_disable;
72 int acpi_verbose;
73 int acpi_handle_reboot;
74
75 bus_dma_tag_t acpi_waketag;
76 bus_dmamap_t acpi_wakemap;
77 vm_offset_t acpi_wakeaddr;
78 vm_paddr_t acpi_wakephys;
79 };
80
81 struct acpi_device {
82 /* ACPI ivars */
83 ACPI_HANDLE ad_handle;
84 int ad_magic;
85 void *ad_private;
86 int ad_flags;
87
88 /* Resources */
89 struct resource_list ad_rl;
90 };
91
92 #define ACPI_PRW_MAX_POWERRES 8
93
94 struct acpi_prw_data {
95 ACPI_HANDLE gpe_handle;
96 int gpe_bit;
97 int lowest_wake;
98 ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES];
99 int power_res_count;
100 };
101
102 /* Flags for each device defined in the AML namespace. */
103 #define ACPI_FLAG_WAKE_ENABLED 0x1
104
105 /* Macros for extracting parts of a PCI address from an _ADR value. */
106 #define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16)
107 #define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff)
108
109 /*
110 * Entry points to ACPI from above are global functions defined in this
111 * file, sysctls, and I/O on the control device. Entry points from below
112 * are interrupts (the SCI), notifies, task queue threads, and the thermal
113 * zone polling thread.
114 *
115 * ACPI tables and global shared data are protected by a global lock
116 * (acpi_mutex).
117 *
118 * Each ACPI device can have its own driver-specific mutex for protecting
119 * shared access to local data. The ACPI_LOCK macros handle mutexes.
120 *
121 * Drivers that need to serialize access to functions (e.g., to route
122 * interrupts, get/set control paths, etc.) should use the sx lock macros
123 * (ACPI_SERIAL).
124 *
125 * ACPI-CA handles its own locking and should not be called with locks held.
126 *
127 * The most complicated path is:
128 * GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE
129 */
130 extern struct mtx acpi_mutex;
131 #define ACPI_LOCK(sys) mtx_lock(&sys##_mutex)
132 #define ACPI_UNLOCK(sys) mtx_unlock(&sys##_mutex)
133 #define ACPI_LOCK_ASSERT(sys) mtx_assert(&sys##_mutex, MA_OWNED);
134 #define ACPI_LOCK_DECL(sys, name) \
135 static struct mtx sys##_mutex; \
136 MTX_SYSINIT(sys##_mutex, &sys##_mutex, name, MTX_DEF)
137 #define ACPI_SERIAL_BEGIN(sys) sx_xlock(&sys##_sxlock)
138 #define ACPI_SERIAL_END(sys) sx_xunlock(&sys##_sxlock)
139 #define ACPI_SERIAL_ASSERT(sys) sx_assert(&sys##_sxlock, SX_XLOCKED);
140 #define ACPI_SERIAL_DECL(sys, name) \
141 static struct sx sys##_sxlock; \
142 SX_SYSINIT(sys##_sxlock, &sys##_sxlock, name)
143
144 /*
145 * ACPI CA does not define layers for non-ACPI CA drivers.
146 * We define some here within the range provided.
147 */
148 #define ACPI_AC_ADAPTER 0x00010000
149 #define ACPI_BATTERY 0x00020000
150 #define ACPI_BUS 0x00040000
151 #define ACPI_BUTTON 0x00080000
152 #define ACPI_EC 0x00100000
153 #define ACPI_FAN 0x00200000
154 #define ACPI_POWERRES 0x00400000
155 #define ACPI_PROCESSOR 0x00800000
156 #define ACPI_THERMAL 0x01000000
157 #define ACPI_TIMER 0x02000000
158 #define ACPI_OEM 0x04000000
159
160 /*
161 * Constants for different interrupt models used with acpi_SetIntrModel().
162 */
163 #define ACPI_INTR_PIC 0
164 #define ACPI_INTR_APIC 1
165 #define ACPI_INTR_SAPIC 2
166
167 /*
168 * Various features and capabilities for the acpi_get_features() method.
169 * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods.
170 * See the Intel document titled "Processor Driver Capabilities Bit
171 * Definitions", number 302223-002.
172 */
173 #define ACPI_CAP_PERF_MSRS (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */
174 #define ACPI_CAP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */
175 #define ACPI_CAP_THR_MSRS (1 << 2) /* Intel OnDemand throttling MSRs */
176 #define ACPI_CAP_SMP_SAME (1 << 3) /* MP C1, Px, and Tx (all the same) */
177 #define ACPI_CAP_SMP_SAME_C3 (1 << 4) /* MP C2 and C3 (all the same) */
178 #define ACPI_CAP_SMP_DIFF_PX (1 << 5) /* MP Px (different, using _PSD) */
179 #define ACPI_CAP_SMP_DIFF_CX (1 << 6) /* MP Cx (different, using _CSD) */
180 #define ACPI_CAP_SMP_DIFF_TX (1 << 7) /* MP Tx (different, using _TSD) */
181 #define ACPI_CAP_SMP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */
182
183 /*
184 * Quirk flags.
185 *
186 * ACPI_Q_BROKEN: Disables all ACPI support.
187 * ACPI_Q_TIMER: Disables support for the ACPI timer.
188 * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
189 * first APIC and that the MADT should force that by ignoring the PC-AT
190 * compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
191 */
192 extern int acpi_quirks;
193 #define ACPI_Q_OK 0
194 #define ACPI_Q_BROKEN (1 << 0)
195 #define ACPI_Q_TIMER (1 << 1)
196 #define ACPI_Q_MADT_IRQ0 (1 << 2)
197
198 /*
199 * Note that the low ivar values are reserved to provide
200 * interface compatibility with ISA drivers which can also
201 * attach to ACPI.
202 */
203 #define ACPI_IVAR_HANDLE 0x100
204 #define ACPI_IVAR_MAGIC 0x101
205 #define ACPI_IVAR_PRIVATE 0x102
206 #define ACPI_IVAR_FLAGS 0x103
207
208 /*
209 * Accessor functions for our ivars. Default value for BUS_READ_IVAR is
210 * (type) 0. The <sys/bus.h> accessor functions don't check return values.
211 */
212 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
213 \
214 static __inline type varp ## _get_ ## var(device_t dev) \
215 { \
216 uintptr_t v = 0; \
217 BUS_READ_IVAR(device_get_parent(dev), dev, \
218 ivarp ## _IVAR_ ## ivar, &v); \
219 return ((type) v); \
220 } \
221 \
222 static __inline void varp ## _set_ ## var(device_t dev, type t) \
223 { \
224 uintptr_t v = (uintptr_t) t; \
225 BUS_WRITE_IVAR(device_get_parent(dev), dev, \
226 ivarp ## _IVAR_ ## ivar, v); \
227 }
228
229 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
230 __ACPI_BUS_ACCESSOR(acpi, magic, ACPI, MAGIC, int)
231 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
232 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)
233
234 void acpi_fake_objhandler(ACPI_HANDLE h, UINT32 fn, void *data);
235 static __inline device_t
236 acpi_get_device(ACPI_HANDLE handle)
237 {
238 void *dev = NULL;
239 AcpiGetData(handle, acpi_fake_objhandler, &dev);
240 return ((device_t)dev);
241 }
242
243 static __inline ACPI_OBJECT_TYPE
244 acpi_get_type(device_t dev)
245 {
246 ACPI_HANDLE h;
247 ACPI_OBJECT_TYPE t;
248
249 if ((h = acpi_get_handle(dev)) == NULL)
250 return (ACPI_TYPE_NOT_FOUND);
251 if (AcpiGetType(h, &t) != AE_OK)
252 return (ACPI_TYPE_NOT_FOUND);
253 return (t);
254 }
255
256 #ifdef ACPI_DEBUGGER
257 void acpi_EnterDebugger(void);
258 #endif
259
260 #ifdef ACPI_DEBUG
261 #include <sys/cons.h>
262 #define STEP(x) do {printf x, printf("\n"); cngetc();} while (0)
263 #else
264 #define STEP(x)
265 #endif
266
267 #define ACPI_VPRINT(dev, acpi_sc, x...) do { \
268 if (acpi_get_verbose(acpi_sc)) \
269 device_printf(dev, x); \
270 } while (0)
271
272 /* Values for the device _STA (status) method. */
273 #define ACPI_STA_PRESENT (1 << 0)
274 #define ACPI_STA_ENABLED (1 << 1)
275 #define ACPI_STA_SHOW_IN_UI (1 << 2)
276 #define ACPI_STA_FUNCTIONAL (1 << 3)
277 #define ACPI_STA_BATT_PRESENT (1 << 4)
278
279 #define ACPI_DEVINFO_PRESENT(x, flags) \
280 (((x) & (flags)) == (flags))
281 #define ACPI_DEVICE_PRESENT(x) \
282 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL)
283 #define ACPI_BATTERY_PRESENT(x) \
284 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \
285 ACPI_STA_BATT_PRESENT)
286
287 BOOLEAN acpi_DeviceIsPresent(device_t dev);
288 BOOLEAN acpi_BatteryIsPresent(device_t dev);
289 ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
290 ACPI_HANDLE *result);
291 uint32_t acpi_TimerDelta(uint32_t end, uint32_t start);
292 ACPI_BUFFER *acpi_AllocBuffer(int size);
293 ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
294 UINT32 *number);
295 ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path,
296 UINT32 *number);
297 ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path,
298 UINT32 number);
299 ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj,
300 void (*func)(ACPI_OBJECT *comp, void *arg), void *arg);
301 ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
302 ACPI_RESOURCE **resp);
303 ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf,
304 ACPI_RESOURCE *res);
305 ACPI_STATUS acpi_OverrideInterruptLevel(UINT32 InterruptNumber);
306 ACPI_STATUS acpi_SetIntrModel(int model);
307 ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state);
308 int acpi_wake_init(device_t dev, int type);
309 int acpi_wake_set_enable(device_t dev, int enable);
310 int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
311 ACPI_STATUS acpi_Startup(void);
312 void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
313 uint8_t notify);
314 int acpi_bus_alloc_gas(device_t dev, int *type, int *rid,
315 ACPI_GENERIC_ADDRESS *gas, struct resource **res,
316 u_int flags);
317
318 struct acpi_parse_resource_set {
319 void (*set_init)(device_t dev, void *arg, void **context);
320 void (*set_done)(device_t dev, void *context);
321 void (*set_ioport)(device_t dev, void *context, uint32_t base,
322 uint32_t length);
323 void (*set_iorange)(device_t dev, void *context, uint32_t low,
324 uint32_t high, uint32_t length, uint32_t align);
325 void (*set_memory)(device_t dev, void *context, uint32_t base,
326 uint32_t length);
327 void (*set_memoryrange)(device_t dev, void *context, uint32_t low,
328 uint32_t high, uint32_t length, uint32_t align);
329 void (*set_irq)(device_t dev, void *context, u_int32_t *irq,
330 int count, int trig, int pol);
331 void (*set_drq)(device_t dev, void *context, u_int32_t *drq,
332 int count);
333 void (*set_start_dependant)(device_t dev, void *context,
334 int preference);
335 void (*set_end_dependant)(device_t dev, void *context);
336 };
337
338 extern struct acpi_parse_resource_set acpi_res_parse_set;
339
340 void acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
341 ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid,
342 struct resource *res, ACPI_RESOURCE *acpi_res);
343 ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
344 struct acpi_parse_resource_set *set, void *arg);
345
346 /* ACPI event handling */
347 UINT32 acpi_event_power_button_sleep(void *context);
348 UINT32 acpi_event_power_button_wake(void *context);
349 UINT32 acpi_event_sleep_button_sleep(void *context);
350 UINT32 acpi_event_sleep_button_wake(void *context);
351
352 #define ACPI_EVENT_PRI_FIRST 0
353 #define ACPI_EVENT_PRI_DEFAULT 10000
354 #define ACPI_EVENT_PRI_LAST 20000
355
356 typedef void (*acpi_event_handler_t)(void *, int);
357
358 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
359 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);
360
361 /* Device power control. */
362 ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
363 ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);
364
365 /* Misc. */
366 static __inline struct acpi_softc *
367 acpi_device_get_parent_softc(device_t child)
368 {
369 device_t parent;
370
371 parent = device_get_parent(child);
372 if (parent == NULL)
373 return (NULL);
374 return (device_get_softc(parent));
375 }
376
377 static __inline int
378 acpi_get_verbose(struct acpi_softc *sc)
379 {
380 if (sc)
381 return (sc->acpi_verbose);
382 return (0);
383 }
384
385 char *acpi_name(ACPI_HANDLE handle);
386 int acpi_avoid(ACPI_HANDLE handle);
387 int acpi_disabled(char *subsys);
388 int acpi_machdep_init(device_t dev);
389 void acpi_install_wakeup_handler(struct acpi_softc *sc);
390 int acpi_sleep_machdep(struct acpi_softc *sc, int state);
391 int acpi_table_quirks(int *quirks);
392 int acpi_machdep_quirks(int *quirks);
393
394 /* Battery Abstraction. */
395 struct acpi_battinfo;
396
397 int acpi_battery_register(device_t dev);
398 int acpi_battery_remove(device_t dev);
399 int acpi_battery_get_units(void);
400 int acpi_battery_get_info_expire(void);
401 int acpi_battery_bst_valid(struct acpi_bst *bst);
402 int acpi_battery_bif_valid(struct acpi_bif *bif);
403 int acpi_battery_get_battinfo(device_t dev,
404 struct acpi_battinfo *info);
405
406 /* Embedded controller. */
407 void acpi_ec_ecdt_probe(device_t);
408
409 /* AC adapter interface. */
410 int acpi_acad_get_acline(int *);
411
412 /* Package manipulation convenience functions. */
413 #define ACPI_PKG_VALID(pkg, size) \
414 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \
415 (pkg)->Package.Count >= (size))
416 int acpi_PkgInt(ACPI_OBJECT *res, int idx, ACPI_INTEGER *dst);
417 int acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst);
418 int acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size);
419 int acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type,
420 int *rid, struct resource **dst, u_int flags);
421 ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
422
423 /*
424 * Base level for BUS_ADD_CHILD. Special devices are added at orders less
425 * than this, and normal devices at or above this level. This keeps the
426 * probe order sorted so that things like sysresource are available before
427 * their children need them.
428 */
429 #define ACPI_DEV_BASE_ORDER 10
430
431 /* Default number of task queue threads to start. */
432 #define ACPI_MAX_THREADS 3
433
434 /* Use the device logging level for ktr(4). */
435 #define KTR_ACPI KTR_DEV
436
437 #endif /* _KERNEL */
438 #endif /* !_ACPIVAR_H_ */
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