2 * Copyright (c) 2009 Michael Gmelin <freebsd@grem.de>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * $FreeBSD: src/sys/dev/acpi_support/acpi_hp.c,v 1.3 2009/07/03 21:12:37 rpaulo
28 #include <sys/cdefs.h>
31 * Driver for extra ACPI-controlled features found on HP laptops
32 * that use a WMI enabled BIOS (e.g. HP Compaq 8510p and 6510p).
33 * Allows to control and read status of integrated hardware and read
34 * BIOS settings through CMI.
35 * Inspired by the hp-wmi driver, which implements a subset of these
36 * features (hotkeys) on Linux.
39 * http://h20331.www2.hp.com/Hpsub/downloads/cmi_whitepaper.pdf
41 * http://www.kernel.org
43 * http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
47 #include <sys/param.h>
51 #include <sys/kernel.h>
54 #include <sys/module.h>
55 #include <sys/sysctl.h>
56 #include <sys/device.h>
60 #include <dev/acpica5/acpivar.h>
61 #include "acpi_wmi_if.h"
63 #define _COMPONENT ACPI_OEM
64 ACPI_MODULE_NAME("HP")
66 #define ACPI_HP_WMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
67 #define ACPI_HP_WMI_BIOS_GUID "5FB7F034-2C63-45E9-BE91-3D44E2C707E4"
68 #define ACPI_HP_WMI_CMI_GUID "2D114B49-2DFB-4130-B8FE-4A3C09E75133"
70 #define ACPI_HP_WMI_DISPLAY_COMMAND 0x1
71 #define ACPI_HP_WMI_HDDTEMP_COMMAND 0x2
72 #define ACPI_HP_WMI_ALS_COMMAND 0x3
73 #define ACPI_HP_WMI_DOCK_COMMAND 0x4
74 #define ACPI_HP_WMI_WIRELESS_COMMAND 0x5
76 #define ACPI_HP_METHOD_WLAN_ENABLED 1
77 #define ACPI_HP_METHOD_WLAN_RADIO 2
78 #define ACPI_HP_METHOD_WLAN_ON_AIR 3
79 #define ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON 4
80 #define ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF 5
81 #define ACPI_HP_METHOD_BLUETOOTH_ENABLED 6
82 #define ACPI_HP_METHOD_BLUETOOTH_RADIO 7
83 #define ACPI_HP_METHOD_BLUETOOTH_ON_AIR 8
84 #define ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON 9
85 #define ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF 10
86 #define ACPI_HP_METHOD_WWAN_ENABLED 11
87 #define ACPI_HP_METHOD_WWAN_RADIO 12
88 #define ACPI_HP_METHOD_WWAN_ON_AIR 13
89 #define ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON 14
90 #define ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF 15
91 #define ACPI_HP_METHOD_ALS 16
92 #define ACPI_HP_METHOD_DISPLAY 17
93 #define ACPI_HP_METHOD_HDDTEMP 18
94 #define ACPI_HP_METHOD_DOCK 19
95 #define ACPI_HP_METHOD_CMI_DETAIL 20
96 #define ACPI_HP_METHOD_VERBOSE 21
98 #define HP_MASK_WWAN_ON_AIR 0x1000000
99 #define HP_MASK_BLUETOOTH_ON_AIR 0x10000
100 #define HP_MASK_WLAN_ON_AIR 0x100
101 #define HP_MASK_WWAN_RADIO 0x8000000
102 #define HP_MASK_BLUETOOTH_RADIO 0x80000
103 #define HP_MASK_WLAN_RADIO 0x800
104 #define HP_MASK_WWAN_ENABLED 0x2000000
105 #define HP_MASK_BLUETOOTH_ENABLED 0x20000
106 #define HP_MASK_WLAN_ENABLED 0x200
108 #define ACPI_HP_CMI_DETAIL_PATHS 0x01
109 #define ACPI_HP_CMI_DETAIL_ENUMS 0x02
110 #define ACPI_HP_CMI_DETAIL_FLAGS 0x04
111 #define ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE 0x08
113 #define sbuf_done(s) ((s)->s_flags & SBUF_FINISHED)
115 struct acpi_hp_inst_seq_pair {
116 UINT32 sequence; /* sequence number as suggested by cmi bios */
117 UINT8 instance; /* object instance on guid */
120 struct acpi_hp_softc {
124 int has_notify; /* notification GUID found */
125 int has_cmi; /* CMI GUID found */
126 int cmi_detail; /* CMI detail level
128 int verbose; /* add debug output */
129 int wlan_enable_if_radio_on; /* set by sysctl */
130 int wlan_disable_if_radio_off; /* set by sysctl */
131 int bluetooth_enable_if_radio_on; /* set by sysctl */
132 int bluetooth_disable_if_radio_off; /* set by sysctl */
133 int wwan_enable_if_radio_on; /* set by sysctl */
134 int wwan_disable_if_radio_off; /* set by sysctl */
135 int was_wlan_on_air; /* last known WLAN
137 int was_bluetooth_on_air; /* last known BT
139 int was_wwan_on_air; /* last known WWAN
141 struct sysctl_ctx_list sysctl_ctx;
142 struct sysctl_oid *sysctl_tree;
143 struct cdev *hpcmi_dev_t; /* hpcmi device handle */
144 struct sbuf hpcmi_sbuf; /* /dev/hpcmi output sbuf */
145 pid_t hpcmi_open_pid; /* pid operating on
147 int hpcmi_bufptr; /* current pointer position
148 in /dev/hpcmi output buffer
150 int cmi_order_size; /* size of cmi_order list */
151 struct acpi_hp_inst_seq_pair cmi_order[128]; /* list of CMI
152 instances ordered by BIOS suggested sequence */
160 } acpi_hp_sysctls[] = {
162 .name = "wlan_enabled",
163 .method = ACPI_HP_METHOD_WLAN_ENABLED,
164 .description = "Enable/Disable WLAN (WiFi)",
165 .access = CTLTYPE_INT | CTLFLAG_RW
168 .name = "wlan_radio",
169 .method = ACPI_HP_METHOD_WLAN_RADIO,
170 .description = "WLAN radio status",
171 .access = CTLTYPE_INT | CTLFLAG_RD
174 .name = "wlan_on_air",
175 .method = ACPI_HP_METHOD_WLAN_ON_AIR,
176 .description = "WLAN radio ready to use (enabled and radio)",
177 .access = CTLTYPE_INT | CTLFLAG_RD
180 .name = "wlan_enable_if_radio_on",
181 .method = ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON,
182 .description = "Enable WLAN if radio is turned on",
183 .access = CTLTYPE_INT | CTLFLAG_RW
186 .name = "wlan_disable_if_radio_off",
187 .method = ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF,
188 .description = "Disable WLAN if radio is turned off",
189 .access = CTLTYPE_INT | CTLFLAG_RW
192 .name = "bt_enabled",
193 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLED,
194 .description = "Enable/Disable Bluetooth",
195 .access = CTLTYPE_INT | CTLFLAG_RW
199 .method = ACPI_HP_METHOD_BLUETOOTH_RADIO,
200 .description = "Bluetooth radio status",
201 .access = CTLTYPE_INT | CTLFLAG_RD
205 .method = ACPI_HP_METHOD_BLUETOOTH_ON_AIR,
206 .description = "Bluetooth radio ready to use"
207 " (enabled and radio)",
208 .access = CTLTYPE_INT | CTLFLAG_RD
211 .name = "bt_enable_if_radio_on",
212 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON,
213 .description = "Enable bluetooth if radio is turned on",
214 .access = CTLTYPE_INT | CTLFLAG_RW
217 .name = "bt_disable_if_radio_off",
218 .method = ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF,
219 .description = "Disable bluetooth if radio is turned off",
220 .access = CTLTYPE_INT | CTLFLAG_RW
223 .name = "wwan_enabled",
224 .method = ACPI_HP_METHOD_WWAN_ENABLED,
225 .description = "Enable/Disable WWAN (UMTS)",
226 .access = CTLTYPE_INT | CTLFLAG_RW
229 .name = "wwan_radio",
230 .method = ACPI_HP_METHOD_WWAN_RADIO,
231 .description = "WWAN radio status",
232 .access = CTLTYPE_INT | CTLFLAG_RD
235 .name = "wwan_on_air",
236 .method = ACPI_HP_METHOD_WWAN_ON_AIR,
237 .description = "WWAN radio ready to use (enabled and radio)",
238 .access = CTLTYPE_INT | CTLFLAG_RD
241 .name = "wwan_enable_if_radio_on",
242 .method = ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON,
243 .description = "Enable WWAN if radio is turned on",
244 .access = CTLTYPE_INT | CTLFLAG_RW
247 .name = "wwan_disable_if_radio_off",
248 .method = ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF,
249 .description = "Disable WWAN if radio is turned off",
250 .access = CTLTYPE_INT | CTLFLAG_RW
253 .name = "als_enabled",
254 .method = ACPI_HP_METHOD_ALS,
255 .description = "Enable/Disable ALS (Ambient light sensor)",
256 .access = CTLTYPE_INT | CTLFLAG_RW
260 .method = ACPI_HP_METHOD_DISPLAY,
261 .description = "Display status",
262 .access = CTLTYPE_INT | CTLFLAG_RD
265 .name = "hdd_temperature",
266 .method = ACPI_HP_METHOD_HDDTEMP,
267 .description = "HDD temperature",
268 .access = CTLTYPE_INT | CTLFLAG_RD
272 .method = ACPI_HP_METHOD_DOCK,
273 .description = "Docking station status",
274 .access = CTLTYPE_INT | CTLFLAG_RD
277 .name = "cmi_detail",
278 .method = ACPI_HP_METHOD_CMI_DETAIL,
279 .description = "Details shown in CMI output "
281 .access = CTLTYPE_INT | CTLFLAG_RW
285 .method = ACPI_HP_METHOD_VERBOSE,
286 .description = "Verbosity level",
287 .access = CTLTYPE_INT | CTLFLAG_RW
293 ACPI_SERIAL_DECL(hp, "HP ACPI-WMI Mapping");
295 static int acpi_hp_probe(device_t dev);
296 static int acpi_hp_attach(device_t dev);
297 static int acpi_hp_detach(device_t dev);
299 static void acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc* sc);
300 static int acpi_hp_sysctl(SYSCTL_HANDLER_ARGS);
301 static int acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method,
302 int arg, int oldarg);
303 static int acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method);
304 static int acpi_hp_exec_wmi_command(device_t wmi_dev, int command,
305 int is_write, int val);
306 static void acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context);
307 static int acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid,
308 UINT8 instance, char* outbuf, size_t outsize,
309 UINT32* sequence, int detail);
310 static void acpi_hp_hex_decode(char* buffer);
312 #if defined (__FreeBSD__)
313 static d_open_t acpi_hp_hpcmi_open;
314 static d_close_t acpi_hp_hpcmi_close;
315 static d_read_t acpi_hp_hpcmi_read;
317 static int acpi_hp_hpcmi_open(struct dev_open_args *ap);
318 static int acpi_hp_hpcmi_close(struct dev_close_args *ap);
319 static int acpi_hp_hpcmi_read(struct dev_read_args *ap);
322 /* handler /dev/hpcmi device */
323 struct dev_ops hpcmi_ops = {
325 .d_open = acpi_hp_hpcmi_open,
326 .d_close = acpi_hp_hpcmi_close,
327 .d_read = acpi_hp_hpcmi_read,
330 static device_method_t acpi_hp_methods[] = {
331 DEVMETHOD(device_probe, acpi_hp_probe),
332 DEVMETHOD(device_attach, acpi_hp_attach),
333 DEVMETHOD(device_detach, acpi_hp_detach),
337 static driver_t acpi_hp_driver = {
340 sizeof(struct acpi_hp_softc),
343 static devclass_t acpi_hp_devclass;
345 DRIVER_MODULE(acpi_hp, acpi, acpi_hp_driver, acpi_hp_devclass,
347 MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1);
348 MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1);
351 acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc)
355 int new_bluetooth_status;
358 wireless = acpi_hp_exec_wmi_command(sc->wmi_dev,
359 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
360 new_wlan_status = -1;
361 new_bluetooth_status = -1;
362 new_wwan_status = -1;
365 device_printf(sc->wmi_dev, "Wireless status is %x\n", wireless);
366 if (sc->wlan_disable_if_radio_off && !(wireless & HP_MASK_WLAN_RADIO)
367 && (wireless & HP_MASK_WLAN_ENABLED)) {
368 acpi_hp_exec_wmi_command(sc->wmi_dev,
369 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x100);
372 else if (sc->wlan_enable_if_radio_on && (wireless & HP_MASK_WLAN_RADIO)
373 && !(wireless & HP_MASK_WLAN_ENABLED)) {
374 acpi_hp_exec_wmi_command(sc->wmi_dev,
375 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x101);
378 if (sc->bluetooth_disable_if_radio_off &&
379 !(wireless & HP_MASK_BLUETOOTH_RADIO) &&
380 (wireless & HP_MASK_BLUETOOTH_ENABLED)) {
381 acpi_hp_exec_wmi_command(sc->wmi_dev,
382 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x200);
383 new_bluetooth_status = 0;
385 else if (sc->bluetooth_enable_if_radio_on &&
386 (wireless & HP_MASK_BLUETOOTH_RADIO) &&
387 !(wireless & HP_MASK_BLUETOOTH_ENABLED)) {
388 acpi_hp_exec_wmi_command(sc->wmi_dev,
389 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x202);
390 new_bluetooth_status = 1;
392 if (sc->wwan_disable_if_radio_off &&
393 !(wireless & HP_MASK_WWAN_RADIO) &&
394 (wireless & HP_MASK_WWAN_ENABLED)) {
395 acpi_hp_exec_wmi_command(sc->wmi_dev,
396 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x400);
399 else if (sc->wwan_enable_if_radio_on &&
400 (wireless & HP_MASK_WWAN_RADIO) &&
401 !(wireless & HP_MASK_WWAN_ENABLED)) {
402 acpi_hp_exec_wmi_command(sc->wmi_dev,
403 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x404);
407 if (new_wlan_status == -1) {
408 new_wlan_status = (wireless & HP_MASK_WLAN_ON_AIR);
409 if ((new_wlan_status?1:0) != sc->was_wlan_on_air) {
410 sc->was_wlan_on_air = sc->was_wlan_on_air?0:1;
412 device_printf(sc->wmi_dev,
413 "WLAN on air changed to %i "
414 "(new_wlan_status is %i)\n",
415 sc->was_wlan_on_air, new_wlan_status);
416 acpi_UserNotify("HP", sc->handle,
417 0xc0+sc->was_wlan_on_air);
420 if (new_bluetooth_status == -1) {
421 new_bluetooth_status = (wireless & HP_MASK_BLUETOOTH_ON_AIR);
422 if ((new_bluetooth_status?1:0) != sc->was_bluetooth_on_air) {
423 sc->was_bluetooth_on_air = sc->was_bluetooth_on_air?
426 device_printf(sc->wmi_dev,
427 "BLUETOOTH on air changed"
428 " to %i (new_bluetooth_status is %i)\n",
429 sc->was_bluetooth_on_air,
430 new_bluetooth_status);
431 acpi_UserNotify("HP", sc->handle,
432 0xd0+sc->was_bluetooth_on_air);
435 if (new_wwan_status == -1) {
436 new_wwan_status = (wireless & HP_MASK_WWAN_ON_AIR);
437 if ((new_wwan_status?1:0) != sc->was_wwan_on_air) {
438 sc->was_wwan_on_air = sc->was_wwan_on_air?0:1;
440 device_printf(sc->wmi_dev,
441 "WWAN on air changed to %i"
442 " (new_wwan_status is %i)\n",
443 sc->was_wwan_on_air, new_wwan_status);
444 acpi_UserNotify("HP", sc->handle,
445 0xe0+sc->was_wwan_on_air);
451 acpi_hp_probe(device_t dev)
453 if (acpi_disabled("hp") || device_get_unit(dev) != 0)
455 device_set_desc(dev, "HP ACPI-WMI Mapping");
461 acpi_hp_attach(device_t dev)
463 struct acpi_hp_softc *sc;
464 struct acpi_softc *acpi_sc;
465 devclass_t wmi_devclass;
468 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
470 sc = device_get_softc(dev);
472 sc->handle = acpi_get_handle(dev);
475 sc->bluetooth_enable_if_radio_on = 0;
476 sc->bluetooth_disable_if_radio_off = 0;
477 sc->wlan_enable_if_radio_on = 0;
478 sc->wlan_disable_if_radio_off = 0;
479 sc->wlan_enable_if_radio_on = 0;
480 sc->wlan_disable_if_radio_off = 0;
481 sc->was_wlan_on_air = 0;
482 sc->was_bluetooth_on_air = 0;
483 sc->was_wwan_on_air = 0;
485 sc->cmi_order_size = -1;
487 memset(sc->cmi_order, 0, sizeof(sc->cmi_order));
488 acpi_sc = acpi_device_get_parent_softc(dev);
490 if (!(wmi_devclass = devclass_find ("acpi_wmi"))) {
491 device_printf(dev, "Couldn't find acpi_wmi devclass\n");
494 if (!(sc->wmi_dev = devclass_get_device(wmi_devclass, 0))) {
495 device_printf(dev, "Couldn't find acpi_wmi device\n");
498 if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
499 ACPI_HP_WMI_BIOS_GUID)) {
501 "WMI device does not provide the HP BIOS GUID\n");
504 if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
505 ACPI_HP_WMI_EVENT_GUID)) {
507 "HP event GUID detected, installing event handler\n");
508 if (ACPI_WMI_INSTALL_EVENT_HANDLER(sc->wmi_dev,
509 ACPI_HP_WMI_EVENT_GUID, acpi_hp_notify, dev)) {
511 "Could not install notification handler!\n");
518 ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_HP_WMI_CMI_GUID)
520 device_printf(dev, "HP CMI GUID detected\n");
524 sc->hpcmi_dev_t = make_dev(&hpcmi_ops, 0, UID_ROOT,
525 GID_WHEEL, 0644, "hpcmi");
526 sc->hpcmi_dev_t->si_drv1 = sc;
527 sc->hpcmi_open_pid = 0;
528 sc->hpcmi_bufptr = -1;
531 ACPI_SERIAL_BEGIN(hp);
533 sysctl_ctx_init(&sc->sysctl_ctx);
534 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
535 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
536 "hp", CTLFLAG_RD, 0, "");
538 for (int i = 0; acpi_hp_sysctls[i].name != NULL; ++i) {
540 if ((!sc->has_notify &&
541 (acpi_hp_sysctls[i].method ==
542 ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON ||
543 acpi_hp_sysctls[i].method ==
544 ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF ||
545 acpi_hp_sysctls[i].method ==
546 ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON ||
547 acpi_hp_sysctls[i].method ==
548 ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF ||
549 acpi_hp_sysctls[i].method ==
550 ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON ||
551 acpi_hp_sysctls[i].method ==
552 ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF)) ||
553 (arg = acpi_hp_sysctl_get(sc,
554 acpi_hp_sysctls[i].method)) < 0) {
557 if (acpi_hp_sysctls[i].method == ACPI_HP_METHOD_WLAN_ON_AIR) {
558 sc->was_wlan_on_air = arg;
560 else if (acpi_hp_sysctls[i].method ==
561 ACPI_HP_METHOD_BLUETOOTH_ON_AIR) {
562 sc->was_bluetooth_on_air = arg;
564 else if (acpi_hp_sysctls[i].method ==
565 ACPI_HP_METHOD_WWAN_ON_AIR) {
566 sc->was_wwan_on_air = arg;
569 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
570 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
571 acpi_hp_sysctls[i].name, acpi_hp_sysctls[i].access,
572 sc, i, acpi_hp_sysctl, "I",
573 acpi_hp_sysctls[i].description);
581 acpi_hp_detach(device_t dev)
585 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
586 struct acpi_hp_softc *sc = device_get_softc(dev);
587 if (sc->has_cmi && sc->hpcmi_open_pid != 0) {
591 if (sc->has_notify) {
592 ACPI_WMI_REMOVE_EVENT_HANDLER(dev,
593 ACPI_HP_WMI_EVENT_GUID);
595 if (sc->hpcmi_bufptr != -1) {
596 sbuf_delete(&sc->hpcmi_sbuf);
597 sc->hpcmi_bufptr = -1;
599 sc->hpcmi_open_pid = 0;
600 destroy_dev(sc->hpcmi_dev_t);
608 acpi_hp_sysctl(SYSCTL_HANDLER_ARGS)
610 struct acpi_hp_softc *sc;
617 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
619 sc = (struct acpi_hp_softc *)oidp->oid_arg1;
620 function = oidp->oid_arg2;
621 method = acpi_hp_sysctls[function].method;
623 ACPI_SERIAL_BEGIN(hp);
624 arg = acpi_hp_sysctl_get(sc, method);
626 error = sysctl_handle_int(oidp, &arg, 0, req);
627 if (!error && req->newptr != NULL) {
628 error = acpi_hp_sysctl_set(sc, method, arg, oldarg);
636 acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method)
640 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
641 ACPI_SERIAL_ASSERT(hp);
644 case ACPI_HP_METHOD_WLAN_ENABLED:
645 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
646 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
647 val = ((val & HP_MASK_WLAN_ENABLED) != 0);
649 case ACPI_HP_METHOD_WLAN_RADIO:
650 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
651 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
652 val = ((val & HP_MASK_WLAN_RADIO) != 0);
654 case ACPI_HP_METHOD_WLAN_ON_AIR:
655 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
656 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
657 val = ((val & HP_MASK_WLAN_ON_AIR) != 0);
659 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
660 val = sc->wlan_enable_if_radio_on;
662 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
663 val = sc->wlan_disable_if_radio_off;
665 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
666 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
667 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
668 val = ((val & HP_MASK_BLUETOOTH_ENABLED) != 0);
670 case ACPI_HP_METHOD_BLUETOOTH_RADIO:
671 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
672 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
673 val = ((val & HP_MASK_BLUETOOTH_RADIO) != 0);
675 case ACPI_HP_METHOD_BLUETOOTH_ON_AIR:
676 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
677 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
678 val = ((val & HP_MASK_BLUETOOTH_ON_AIR) != 0);
680 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
681 val = sc->bluetooth_enable_if_radio_on;
683 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
684 val = sc->bluetooth_disable_if_radio_off;
686 case ACPI_HP_METHOD_WWAN_ENABLED:
687 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
688 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
689 val = ((val & HP_MASK_WWAN_ENABLED) != 0);
691 case ACPI_HP_METHOD_WWAN_RADIO:
692 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
693 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
694 val = ((val & HP_MASK_WWAN_RADIO) != 0);
696 case ACPI_HP_METHOD_WWAN_ON_AIR:
697 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
698 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
699 val = ((val & HP_MASK_WWAN_ON_AIR) != 0);
701 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
702 val = sc->wwan_enable_if_radio_on;
704 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
705 val = sc->wwan_disable_if_radio_off;
707 case ACPI_HP_METHOD_ALS:
708 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
709 ACPI_HP_WMI_ALS_COMMAND, 0, 0);
711 case ACPI_HP_METHOD_DISPLAY:
712 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
713 ACPI_HP_WMI_DISPLAY_COMMAND, 0, 0);
715 case ACPI_HP_METHOD_HDDTEMP:
716 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
717 ACPI_HP_WMI_HDDTEMP_COMMAND, 0, 0);
719 case ACPI_HP_METHOD_DOCK:
720 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
721 ACPI_HP_WMI_DOCK_COMMAND, 0, 0);
723 case ACPI_HP_METHOD_CMI_DETAIL:
724 val = sc->cmi_detail;
726 case ACPI_HP_METHOD_VERBOSE:
735 acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method, int arg, int oldarg)
737 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
738 ACPI_SERIAL_ASSERT(hp);
740 if (method != ACPI_HP_METHOD_CMI_DETAIL &&
741 method != ACPI_HP_METHOD_VERBOSE)
746 case ACPI_HP_METHOD_WLAN_ENABLED:
747 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
748 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
750 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
751 sc->wlan_enable_if_radio_on = arg;
752 acpi_hp_evaluate_auto_on_off(sc);
754 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
755 sc->wlan_disable_if_radio_off = arg;
756 acpi_hp_evaluate_auto_on_off(sc);
758 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
759 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
760 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
762 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
763 sc->bluetooth_enable_if_radio_on = arg;
764 acpi_hp_evaluate_auto_on_off(sc);
766 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
767 sc->bluetooth_disable_if_radio_off = arg?1:0;
768 acpi_hp_evaluate_auto_on_off(sc);
770 case ACPI_HP_METHOD_WWAN_ENABLED:
771 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
772 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
774 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
775 sc->wwan_enable_if_radio_on = arg?1:0;
776 acpi_hp_evaluate_auto_on_off(sc);
778 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
779 sc->wwan_disable_if_radio_off = arg?1:0;
780 acpi_hp_evaluate_auto_on_off(sc);
782 case ACPI_HP_METHOD_ALS:
783 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
784 ACPI_HP_WMI_ALS_COMMAND, 1,
786 case ACPI_HP_METHOD_CMI_DETAIL:
787 sc->cmi_detail = arg;
788 if ((arg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) !=
789 (oldarg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE)) {
790 sc->cmi_order_size = -1;
793 case ACPI_HP_METHOD_VERBOSE:
803 acpi_hp_free_buffer(ACPI_BUFFER* buf) {
804 if (buf && buf->Pointer) {
805 AcpiOsFree(buf->Pointer);
810 acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context)
812 device_t dev = context;
813 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
815 struct acpi_hp_softc *sc = device_get_softc(dev);
816 ACPI_BUFFER response = { ACPI_ALLOCATE_BUFFER, NULL };
818 ACPI_WMI_GET_EVENT_DATA(sc->wmi_dev, notify, &response);
819 obj = (ACPI_OBJECT*) response.Pointer;
820 if (obj && obj->Type == ACPI_TYPE_BUFFER && obj->Buffer.Length == 8) {
821 if (*((UINT8 *) obj->Buffer.Pointer) == 0x5) {
822 acpi_hp_evaluate_auto_on_off(sc);
825 acpi_hp_free_buffer(&response);
829 acpi_hp_exec_wmi_command(device_t wmi_dev, int command, int is_write, int val)
831 UINT32 params[5] = { 0x55434553,
838 ACPI_BUFFER in = { sizeof(params), ¶ms };
839 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
842 if (ACPI_FAILURE(ACPI_WMI_EVALUATE_CALL(wmi_dev, ACPI_HP_WMI_BIOS_GUID,
843 0, 0x3, &in, &out))) {
844 acpi_hp_free_buffer(&out);
848 if (!obj || obj->Type != ACPI_TYPE_BUFFER) {
849 acpi_hp_free_buffer(&out);
852 result = (UINT32*) obj->Buffer.Pointer;
857 acpi_hp_free_buffer(&out);
862 static __inline char*
863 acpi_hp_get_string_from_object(ACPI_OBJECT* obj, char* dst, size_t size) {
867 if (obj->Type == ACPI_TYPE_STRING) {
868 length = obj->String.Length+1;
872 strlcpy(dst, obj->String.Pointer, length);
873 acpi_hp_hex_decode(dst);
881 * Read BIOS Setting block in instance "instance".
882 * The block returned is ACPI_TYPE_PACKAGE which should contain the following
885 * 0 Setting Name [string]
886 * 1 Value (comma separated, asterisk marks the current value) [string]
887 * 2 Path within the bios hierarchy [string]
889 * 4 DisplayInUI [int]
890 * 5 RequiresPhysicalPresence [int]
891 * 6 Sequence for ordering within the bios settings (absolute) [int]
892 * 7 Length of prerequisites array [int]
893 * 8..8+[7] PrerequisiteN [string]
894 * 9+[7] Current value (in case of enum) [string] / Array length [int]
895 * 10+[7] Enum length [int] / Array values
896 * 11+[7]ff Enum value at index x [string]
899 acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid, UINT8 instance,
900 char* outbuf, size_t outsize, UINT32* sequence, int detail)
903 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
909 char string_buffer[size];
914 if (ACPI_FAILURE(ACPI_WMI_GET_BLOCK(wmi_dev, guid, instance, &out))) {
915 acpi_hp_free_buffer(&out);
919 if (!obj && obj->Type != ACPI_TYPE_PACKAGE) {
920 acpi_hp_free_buffer(&out);
924 if (obj->Package.Count >= 8 &&
925 obj->Package.Elements[7].Type == ACPI_TYPE_INTEGER) {
926 valuebase = 8 + obj->Package.Elements[7].Integer.Value;
929 /* check if this matches our expectations based on limited knowledge */
930 if (valuebase > 7 && obj->Package.Count > valuebase + 1 &&
931 obj->Package.Elements[0].Type == ACPI_TYPE_STRING &&
932 obj->Package.Elements[1].Type == ACPI_TYPE_STRING &&
933 obj->Package.Elements[2].Type == ACPI_TYPE_STRING &&
934 obj->Package.Elements[3].Type == ACPI_TYPE_INTEGER &&
935 obj->Package.Elements[4].Type == ACPI_TYPE_INTEGER &&
936 obj->Package.Elements[5].Type == ACPI_TYPE_INTEGER &&
937 obj->Package.Elements[6].Type == ACPI_TYPE_INTEGER &&
938 obj->Package.Elements[valuebase].Type == ACPI_TYPE_STRING &&
939 obj->Package.Elements[valuebase+1].Type == ACPI_TYPE_INTEGER &&
940 obj->Package.Count > valuebase +
941 obj->Package.Elements[valuebase+1].Integer.Value
943 enumbase = valuebase + 1;
944 if (detail & ACPI_HP_CMI_DETAIL_PATHS) {
945 strlcat(outbuf, acpi_hp_get_string_from_object(
946 &obj->Package.Elements[2], string_buffer, size),
949 while (strlen(outbuf) < outlen)
950 strlcat(outbuf, " ", outsize);
952 strlcat(outbuf, acpi_hp_get_string_from_object(
953 &obj->Package.Elements[0], string_buffer, size),
956 while (strlen(outbuf) < outlen)
957 strlcat(outbuf, " ", outsize);
958 strlcat(outbuf, acpi_hp_get_string_from_object(
959 &obj->Package.Elements[valuebase], string_buffer,
963 while (strlen(outbuf) < outlen)
964 strlcat(outbuf, " ", outsize);
965 for (i = 0; i < strlen(outbuf); ++i)
966 if (outbuf[i] == '\\')
968 if (detail & ACPI_HP_CMI_DETAIL_ENUMS) {
969 for (i = enumbase + 1; i < enumbase + 1 +
970 obj->Package.Elements[enumbase].Integer.Value;
972 acpi_hp_get_string_from_object(
973 &obj->Package.Elements[i], string_buffer,
975 if (strlen(string_buffer) > 1 ||
976 (strlen(string_buffer) == 1 &&
977 string_buffer[0] != ' ')) {
979 strlcat(outbuf, "/", outsize);
981 strlcat(outbuf, " (", outsize);
982 strlcat(outbuf, string_buffer, outsize);
988 strlcat(outbuf, ")", outsize);
989 if (detail & ACPI_HP_CMI_DETAIL_FLAGS) {
990 strlcat(outbuf, obj->Package.Elements[3].Integer.Value?
991 " [ReadOnly]":"", outsize);
992 strlcat(outbuf, obj->Package.Elements[4].Integer.Value?
993 "":" [NOUI]", outsize);
994 strlcat(outbuf, obj->Package.Elements[5].Integer.Value?
995 " [RPP]":"", outsize);
997 *sequence = (UINT32) obj->Package.Elements[6].Integer.Value;
999 acpi_hp_free_buffer(&out);
1007 * Convert given two digit hex string (hexin) to an UINT8 referenced
1009 * Return != 0 if the was a problem (invalid input)
1011 static __inline int acpi_hp_hex_to_int(const UINT8 *hexin, UINT8 *byteout)
1018 if ('0' <= hi && hi <= '9')
1020 else if ('A' <= hi && hi <= 'F')
1022 else if ('a' <= hi && hi <= 'f')
1026 if ('0' <= lo && lo <= '9')
1028 else if ('A' <= lo && lo <= 'F')
1030 else if ('a' <= lo && lo <= 'f')
1034 *byteout = (hi << 4) + lo;
1041 acpi_hp_hex_decode(char* buffer)
1044 int length = strlen(buffer);
1048 if (((int)length/2)*2 == length || length < 10) return;
1050 for (i = 0; i<length; ++i) {
1052 if (buffer[i] != ' ')
1056 if (!((buffer[i] >= '0' && buffer[i] <= '9') ||
1057 (buffer[i] >= 'A' && buffer[i] <= 'F')))
1061 for (i = 0; i<length; i += 3) {
1064 acpi_hp_hex_to_int(uin, &uout);
1065 buffer[i/3] = (char) uout;
1067 buffer[(length+1)/3] = 0;
1075 acpi_hp_hpcmi_open(struct dev_open_args *ap)
1077 struct acpi_hp_softc *sc;
1079 struct cdev *dev = ap->a_head.a_dev;
1080 struct thread *td = curthread;
1082 if (dev == NULL || dev->si_drv1 == NULL)
1086 ACPI_SERIAL_BEGIN(hp);
1087 if (sc->hpcmi_open_pid != 0) {
1091 if (sbuf_new(&sc->hpcmi_sbuf, NULL, 4096, SBUF_AUTOEXTEND)
1095 sc->hpcmi_open_pid = td->td_proc->p_pid;
1096 sc->hpcmi_bufptr = 0;
1100 ACPI_SERIAL_END(hp);
1106 * close hpcmi device
1109 acpi_hp_hpcmi_close(struct dev_close_args *ap)
1111 struct acpi_hp_softc *sc;
1113 struct cdev *dev = ap->a_head.a_dev;
1115 if (dev == NULL || dev->si_drv1 == NULL)
1119 ACPI_SERIAL_BEGIN(hp);
1120 if (sc->hpcmi_open_pid == 0) {
1124 if (sc->hpcmi_bufptr != -1) {
1125 sbuf_delete(&sc->hpcmi_sbuf);
1126 sc->hpcmi_bufptr = -1;
1128 sc->hpcmi_open_pid = 0;
1131 ACPI_SERIAL_END(hp);
1137 * Read from hpcmi bios information
1140 acpi_hp_hpcmi_read(struct dev_read_args *ap)
1142 struct acpi_hp_softc *sc;
1147 int linesize = 1025;
1148 char line[linesize];
1149 struct cdev *dev = ap->a_head.a_dev;
1150 struct uio *buf = ap->a_uio;
1152 if (dev == NULL || dev->si_drv1 == NULL)
1156 ACPI_SERIAL_BEGIN(hp);
1157 if (sc->hpcmi_open_pid != buf->uio_td->td_proc->p_pid
1158 || sc->hpcmi_bufptr == -1) {
1162 if (!sbuf_done(&sc->hpcmi_sbuf)) {
1163 if (sc->cmi_order_size < 0) {
1164 maxInstance = sc->has_cmi;
1165 if (!(sc->cmi_detail &
1166 ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) &&
1170 sc->cmi_order_size = 0;
1171 for (instance = 0; instance < maxInstance;
1173 if (acpi_hp_get_cmi_block(sc->wmi_dev,
1174 ACPI_HP_WMI_CMI_GUID, instance,
1175 line, linesize, &sequence,
1177 instance = maxInstance;
1180 pos = sc->cmi_order_size;
1182 i<sc->cmi_order_size && i<127;
1184 if (sc->cmi_order[i].sequence > sequence) {
1189 for (i=sc->cmi_order_size;
1192 sc->cmi_order[i].sequence =
1193 sc->cmi_order[i-1].sequence;
1194 sc->cmi_order[i].instance =
1195 sc->cmi_order[i-1].instance;
1197 sc->cmi_order[pos].sequence =
1199 sc->cmi_order[pos].instance =
1201 sc->cmi_order_size++;
1205 for (i=0; i<sc->cmi_order_size; ++i) {
1206 if (!acpi_hp_get_cmi_block(sc->wmi_dev,
1207 ACPI_HP_WMI_CMI_GUID,
1208 sc->cmi_order[i].instance, line, linesize,
1209 &sequence, sc->cmi_detail)) {
1210 sbuf_printf(&sc->hpcmi_sbuf, "%s\n", line);
1213 sbuf_finish(&sc->hpcmi_sbuf);
1215 if (sbuf_len(&sc->hpcmi_sbuf) <= 0) {
1216 sbuf_delete(&sc->hpcmi_sbuf);
1217 sc->hpcmi_bufptr = -1;
1218 sc->hpcmi_open_pid = 0;
1221 l = min(buf->uio_resid, sbuf_len(&sc->hpcmi_sbuf) -
1223 ret = (l > 0)?uiomove(sbuf_data(&sc->hpcmi_sbuf) +
1224 sc->hpcmi_bufptr, l, buf) : 0;
1225 sc->hpcmi_bufptr += l;
1228 ACPI_SERIAL_END(hp);