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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
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>
57 #include <contrib/dev/acpica/include/acpi.h>
58 #include <contrib/dev/acpica/include/accommon.h>
59 #include <dev/acpica/acpivar.h>
60 #include "acpi_wmi_if.h"
62 #define _COMPONENT ACPI_OEM
63 ACPI_MODULE_NAME("HP")
65 #define ACPI_HP_WMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
66 #define ACPI_HP_WMI_BIOS_GUID "5FB7F034-2C63-45E9-BE91-3D44E2C707E4"
67 #define ACPI_HP_WMI_CMI_GUID "2D114B49-2DFB-4130-B8FE-4A3C09E75133"
69 #define ACPI_HP_WMI_DISPLAY_COMMAND 0x1
70 #define ACPI_HP_WMI_HDDTEMP_COMMAND 0x2
71 #define ACPI_HP_WMI_ALS_COMMAND 0x3
72 #define ACPI_HP_WMI_DOCK_COMMAND 0x4
73 #define ACPI_HP_WMI_WIRELESS_COMMAND 0x5
75 #define ACPI_HP_METHOD_WLAN_ENABLED 1
76 #define ACPI_HP_METHOD_WLAN_RADIO 2
77 #define ACPI_HP_METHOD_WLAN_ON_AIR 3
78 #define ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON 4
79 #define ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF 5
80 #define ACPI_HP_METHOD_BLUETOOTH_ENABLED 6
81 #define ACPI_HP_METHOD_BLUETOOTH_RADIO 7
82 #define ACPI_HP_METHOD_BLUETOOTH_ON_AIR 8
83 #define ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON 9
84 #define ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF 10
85 #define ACPI_HP_METHOD_WWAN_ENABLED 11
86 #define ACPI_HP_METHOD_WWAN_RADIO 12
87 #define ACPI_HP_METHOD_WWAN_ON_AIR 13
88 #define ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON 14
89 #define ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF 15
90 #define ACPI_HP_METHOD_ALS 16
91 #define ACPI_HP_METHOD_DISPLAY 17
92 #define ACPI_HP_METHOD_HDDTEMP 18
93 #define ACPI_HP_METHOD_DOCK 19
94 #define ACPI_HP_METHOD_CMI_DETAIL 20
95 #define ACPI_HP_METHOD_VERBOSE 21
97 #define HP_MASK_WWAN_ON_AIR 0x1000000
98 #define HP_MASK_BLUETOOTH_ON_AIR 0x10000
99 #define HP_MASK_WLAN_ON_AIR 0x100
100 #define HP_MASK_WWAN_RADIO 0x8000000
101 #define HP_MASK_BLUETOOTH_RADIO 0x80000
102 #define HP_MASK_WLAN_RADIO 0x800
103 #define HP_MASK_WWAN_ENABLED 0x2000000
104 #define HP_MASK_BLUETOOTH_ENABLED 0x20000
105 #define HP_MASK_WLAN_ENABLED 0x200
107 #define ACPI_HP_CMI_DETAIL_PATHS 0x01
108 #define ACPI_HP_CMI_DETAIL_ENUMS 0x02
109 #define ACPI_HP_CMI_DETAIL_FLAGS 0x04
110 #define ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE 0x08
112 struct acpi_hp_inst_seq_pair {
113 UINT32 sequence; /* sequence number as suggested by cmi bios */
114 UINT8 instance; /* object instance on guid */
117 struct acpi_hp_softc {
120 int has_notify; /* notification GUID found */
121 int has_cmi; /* CMI GUID found */
122 int cmi_detail; /* CMI detail level
124 int verbose; /* add debug output */
125 int wlan_enable_if_radio_on; /* set by sysctl */
126 int wlan_disable_if_radio_off; /* set by sysctl */
127 int bluetooth_enable_if_radio_on; /* set by sysctl */
128 int bluetooth_disable_if_radio_off; /* set by sysctl */
129 int wwan_enable_if_radio_on; /* set by sysctl */
130 int wwan_disable_if_radio_off; /* set by sysctl */
131 int was_wlan_on_air; /* last known WLAN
133 int was_bluetooth_on_air; /* last known BT
135 int was_wwan_on_air; /* last known WWAN
137 struct sysctl_ctx_list *sysctl_ctx;
138 struct sysctl_oid *sysctl_tree;
139 struct cdev *hpcmi_dev_t; /* hpcmi device handle */
140 struct sbuf hpcmi_sbuf; /* /dev/hpcmi output sbuf */
141 pid_t hpcmi_open_pid; /* pid operating on
143 int hpcmi_bufptr; /* current pointer position
144 in /dev/hpcmi output buffer
146 int cmi_order_size; /* size of cmi_order list */
147 struct acpi_hp_inst_seq_pair cmi_order[128]; /* list of CMI
148 instances ordered by BIOS suggested sequence */
156 } acpi_hp_sysctls[] = {
158 .name = "wlan_enabled",
159 .method = ACPI_HP_METHOD_WLAN_ENABLED,
160 .description = "Enable/Disable WLAN (WiFi)",
163 .name = "wlan_radio",
164 .method = ACPI_HP_METHOD_WLAN_RADIO,
165 .description = "WLAN radio status",
169 .name = "wlan_on_air",
170 .method = ACPI_HP_METHOD_WLAN_ON_AIR,
171 .description = "WLAN radio ready to use (enabled and radio)",
175 .name = "wlan_enable_if_radio_on",
176 .method = ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON,
177 .description = "Enable WLAN if radio is turned on",
180 .name = "wlan_disable_if_radio_off",
181 .method = ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF,
182 .description = "Disable WLAN if radio is turned off",
185 .name = "bt_enabled",
186 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLED,
187 .description = "Enable/Disable Bluetooth",
191 .method = ACPI_HP_METHOD_BLUETOOTH_RADIO,
192 .description = "Bluetooth radio status",
197 .method = ACPI_HP_METHOD_BLUETOOTH_ON_AIR,
198 .description = "Bluetooth radio ready to use"
199 " (enabled and radio)",
203 .name = "bt_enable_if_radio_on",
204 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON,
205 .description = "Enable bluetooth if radio is turned on",
208 .name = "bt_disable_if_radio_off",
209 .method = ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF,
210 .description = "Disable bluetooth if radio is turned off",
213 .name = "wwan_enabled",
214 .method = ACPI_HP_METHOD_WWAN_ENABLED,
215 .description = "Enable/Disable WWAN (UMTS)",
218 .name = "wwan_radio",
219 .method = ACPI_HP_METHOD_WWAN_RADIO,
220 .description = "WWAN radio status",
224 .name = "wwan_on_air",
225 .method = ACPI_HP_METHOD_WWAN_ON_AIR,
226 .description = "WWAN radio ready to use (enabled and radio)",
230 .name = "wwan_enable_if_radio_on",
231 .method = ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON,
232 .description = "Enable WWAN if radio is turned on",
235 .name = "wwan_disable_if_radio_off",
236 .method = ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF,
237 .description = "Disable WWAN if radio is turned off",
240 .name = "als_enabled",
241 .method = ACPI_HP_METHOD_ALS,
242 .description = "Enable/Disable ALS (Ambient light sensor)",
246 .method = ACPI_HP_METHOD_DISPLAY,
247 .description = "Display status",
251 .name = "hdd_temperature",
252 .method = ACPI_HP_METHOD_HDDTEMP,
253 .description = "HDD temperature",
258 .method = ACPI_HP_METHOD_DOCK,
259 .description = "Docking station status",
263 .name = "cmi_detail",
264 .method = ACPI_HP_METHOD_CMI_DETAIL,
265 .description = "Details shown in CMI output "
270 .method = ACPI_HP_METHOD_VERBOSE,
271 .description = "Verbosity level",
277 ACPI_SERIAL_DECL(hp, "HP ACPI-WMI Mapping");
279 static void acpi_hp_identify(driver_t *driver, device_t parent);
280 static int acpi_hp_probe(device_t dev);
281 static int acpi_hp_attach(device_t dev);
282 static int acpi_hp_detach(device_t dev);
284 static void acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc* sc);
285 static int acpi_hp_sysctl(SYSCTL_HANDLER_ARGS);
286 static int acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method,
287 int arg, int oldarg);
288 static int acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method);
289 static int acpi_hp_exec_wmi_command(device_t wmi_dev, int command,
290 int is_write, int val);
291 static void acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context);
292 static int acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid,
293 UINT8 instance, char* outbuf, size_t outsize,
294 UINT32* sequence, int detail);
295 static void acpi_hp_hex_decode(char* buffer);
297 static d_open_t acpi_hp_hpcmi_open;
298 static d_close_t acpi_hp_hpcmi_close;
299 static d_read_t acpi_hp_hpcmi_read;
301 /* handler /dev/hpcmi device */
302 static struct cdevsw hpcmi_cdevsw = {
303 .d_version = D_VERSION,
304 .d_open = acpi_hp_hpcmi_open,
305 .d_close = acpi_hp_hpcmi_close,
306 .d_read = acpi_hp_hpcmi_read,
310 static device_method_t acpi_hp_methods[] = {
311 DEVMETHOD(device_identify, acpi_hp_identify),
312 DEVMETHOD(device_probe, acpi_hp_probe),
313 DEVMETHOD(device_attach, acpi_hp_attach),
314 DEVMETHOD(device_detach, acpi_hp_detach),
319 static driver_t acpi_hp_driver = {
322 sizeof(struct acpi_hp_softc),
325 static devclass_t acpi_hp_devclass;
327 DRIVER_MODULE(acpi_hp, acpi_wmi, acpi_hp_driver, acpi_hp_devclass,
329 MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1);
330 MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1);
333 acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc)
337 int new_bluetooth_status;
340 wireless = acpi_hp_exec_wmi_command(sc->wmi_dev,
341 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
342 new_wlan_status = -1;
343 new_bluetooth_status = -1;
344 new_wwan_status = -1;
347 device_printf(sc->wmi_dev, "Wireless status is %x\n", wireless);
348 if (sc->wlan_disable_if_radio_off && !(wireless & HP_MASK_WLAN_RADIO)
349 && (wireless & HP_MASK_WLAN_ENABLED)) {
350 acpi_hp_exec_wmi_command(sc->wmi_dev,
351 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x100);
354 else if (sc->wlan_enable_if_radio_on && (wireless & HP_MASK_WLAN_RADIO)
355 && !(wireless & HP_MASK_WLAN_ENABLED)) {
356 acpi_hp_exec_wmi_command(sc->wmi_dev,
357 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x101);
360 if (sc->bluetooth_disable_if_radio_off &&
361 !(wireless & HP_MASK_BLUETOOTH_RADIO) &&
362 (wireless & HP_MASK_BLUETOOTH_ENABLED)) {
363 acpi_hp_exec_wmi_command(sc->wmi_dev,
364 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x200);
365 new_bluetooth_status = 0;
367 else if (sc->bluetooth_enable_if_radio_on &&
368 (wireless & HP_MASK_BLUETOOTH_RADIO) &&
369 !(wireless & HP_MASK_BLUETOOTH_ENABLED)) {
370 acpi_hp_exec_wmi_command(sc->wmi_dev,
371 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x202);
372 new_bluetooth_status = 1;
374 if (sc->wwan_disable_if_radio_off &&
375 !(wireless & HP_MASK_WWAN_RADIO) &&
376 (wireless & HP_MASK_WWAN_ENABLED)) {
377 acpi_hp_exec_wmi_command(sc->wmi_dev,
378 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x400);
381 else if (sc->wwan_enable_if_radio_on &&
382 (wireless & HP_MASK_WWAN_RADIO) &&
383 !(wireless & HP_MASK_WWAN_ENABLED)) {
384 acpi_hp_exec_wmi_command(sc->wmi_dev,
385 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x404);
389 if (new_wlan_status == -1) {
390 new_wlan_status = (wireless & HP_MASK_WLAN_ON_AIR);
391 if ((new_wlan_status?1:0) != sc->was_wlan_on_air) {
392 sc->was_wlan_on_air = sc->was_wlan_on_air?0:1;
394 device_printf(sc->wmi_dev,
395 "WLAN on air changed to %i "
396 "(new_wlan_status is %i)\n",
397 sc->was_wlan_on_air, new_wlan_status);
398 acpi_UserNotify("HP", ACPI_ROOT_OBJECT,
399 0xc0+sc->was_wlan_on_air);
402 if (new_bluetooth_status == -1) {
403 new_bluetooth_status = (wireless & HP_MASK_BLUETOOTH_ON_AIR);
404 if ((new_bluetooth_status?1:0) != sc->was_bluetooth_on_air) {
405 sc->was_bluetooth_on_air = sc->was_bluetooth_on_air?
408 device_printf(sc->wmi_dev,
409 "BLUETOOTH on air changed"
410 " to %i (new_bluetooth_status is %i)\n",
411 sc->was_bluetooth_on_air,
412 new_bluetooth_status);
413 acpi_UserNotify("HP", ACPI_ROOT_OBJECT,
414 0xd0+sc->was_bluetooth_on_air);
417 if (new_wwan_status == -1) {
418 new_wwan_status = (wireless & HP_MASK_WWAN_ON_AIR);
419 if ((new_wwan_status?1:0) != sc->was_wwan_on_air) {
420 sc->was_wwan_on_air = sc->was_wwan_on_air?0:1;
422 device_printf(sc->wmi_dev,
423 "WWAN on air changed to %i"
424 " (new_wwan_status is %i)\n",
425 sc->was_wwan_on_air, new_wwan_status);
426 acpi_UserNotify("HP", ACPI_ROOT_OBJECT,
427 0xe0+sc->was_wwan_on_air);
433 acpi_hp_identify(driver_t *driver, device_t parent)
436 /* Don't do anything if driver is disabled. */
437 if (acpi_disabled("hp"))
440 /* Add only a single device instance. */
441 if (device_find_child(parent, "acpi_hp", -1) != NULL)
444 if (BUS_ADD_CHILD(parent, 0, "acpi_hp", -1) == NULL)
445 device_printf(parent, "add acpi_hp child failed\n");
449 acpi_hp_probe(device_t dev)
452 device_set_desc(dev, "HP ACPI-WMI Mapping");
457 acpi_hp_attach(device_t dev)
459 struct acpi_hp_softc *sc;
462 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
464 sc = device_get_softc(dev);
468 sc->bluetooth_enable_if_radio_on = 0;
469 sc->bluetooth_disable_if_radio_off = 0;
470 sc->wlan_enable_if_radio_on = 0;
471 sc->wlan_disable_if_radio_off = 0;
472 sc->wlan_enable_if_radio_on = 0;
473 sc->wlan_disable_if_radio_off = 0;
474 sc->was_wlan_on_air = 0;
475 sc->was_bluetooth_on_air = 0;
476 sc->was_wwan_on_air = 0;
478 sc->cmi_order_size = -1;
480 memset(sc->cmi_order, 0, sizeof(sc->cmi_order));
482 sc->wmi_dev = device_get_parent(dev);
483 if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
484 ACPI_HP_WMI_BIOS_GUID)) {
486 "WMI device does not provide the HP BIOS GUID\n");
489 if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
490 ACPI_HP_WMI_EVENT_GUID)) {
492 "HP event GUID detected, installing event handler\n");
493 if (ACPI_WMI_INSTALL_EVENT_HANDLER(sc->wmi_dev,
494 ACPI_HP_WMI_EVENT_GUID, acpi_hp_notify, dev)) {
496 "Could not install notification handler!\n");
503 ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_HP_WMI_CMI_GUID)
505 device_printf(dev, "HP CMI GUID detected\n");
509 sc->hpcmi_dev_t = make_dev(&hpcmi_cdevsw, 0, UID_ROOT,
510 GID_WHEEL, 0644, "hpcmi");
511 sc->hpcmi_dev_t->si_drv1 = sc;
512 sc->hpcmi_open_pid = 0;
513 sc->hpcmi_bufptr = -1;
516 ACPI_SERIAL_BEGIN(hp);
518 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
519 sc->sysctl_tree = device_get_sysctl_tree(dev);
520 for (int i = 0; acpi_hp_sysctls[i].name != NULL; ++i) {
522 if ((!sc->has_notify &&
523 (acpi_hp_sysctls[i].method ==
524 ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON ||
525 acpi_hp_sysctls[i].method ==
526 ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF ||
527 acpi_hp_sysctls[i].method ==
528 ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON ||
529 acpi_hp_sysctls[i].method ==
530 ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF ||
531 acpi_hp_sysctls[i].method ==
532 ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON ||
533 acpi_hp_sysctls[i].method ==
534 ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF)) ||
535 (arg = acpi_hp_sysctl_get(sc,
536 acpi_hp_sysctls[i].method)) < 0) {
539 if (acpi_hp_sysctls[i].method == ACPI_HP_METHOD_WLAN_ON_AIR) {
540 sc->was_wlan_on_air = arg;
542 else if (acpi_hp_sysctls[i].method ==
543 ACPI_HP_METHOD_BLUETOOTH_ON_AIR) {
544 sc->was_bluetooth_on_air = arg;
546 else if (acpi_hp_sysctls[i].method ==
547 ACPI_HP_METHOD_WWAN_ON_AIR) {
548 sc->was_wwan_on_air = arg;
551 if (acpi_hp_sysctls[i].flag_rdonly != 0) {
552 SYSCTL_ADD_PROC(sc->sysctl_ctx,
553 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
554 acpi_hp_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD,
555 sc, i, acpi_hp_sysctl, "I",
556 acpi_hp_sysctls[i].description);
558 SYSCTL_ADD_PROC(sc->sysctl_ctx,
559 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
560 acpi_hp_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW,
561 sc, i, acpi_hp_sysctl, "I",
562 acpi_hp_sysctls[i].description);
571 acpi_hp_detach(device_t dev)
573 struct acpi_hp_softc *sc;
575 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
576 sc = device_get_softc(dev);
577 if (sc->has_cmi && sc->hpcmi_open_pid != 0)
581 ACPI_WMI_REMOVE_EVENT_HANDLER(dev, ACPI_HP_WMI_EVENT_GUID);
584 if (sc->hpcmi_bufptr != -1) {
585 sbuf_delete(&sc->hpcmi_sbuf);
586 sc->hpcmi_bufptr = -1;
588 sc->hpcmi_open_pid = 0;
589 destroy_dev(sc->hpcmi_dev_t);
596 acpi_hp_sysctl(SYSCTL_HANDLER_ARGS)
598 struct acpi_hp_softc *sc;
605 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
607 sc = (struct acpi_hp_softc *)oidp->oid_arg1;
608 function = oidp->oid_arg2;
609 method = acpi_hp_sysctls[function].method;
611 ACPI_SERIAL_BEGIN(hp);
612 arg = acpi_hp_sysctl_get(sc, method);
614 error = sysctl_handle_int(oidp, &arg, 0, req);
615 if (!error && req->newptr != NULL) {
616 error = acpi_hp_sysctl_set(sc, method, arg, oldarg);
624 acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method)
628 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
629 ACPI_SERIAL_ASSERT(hp);
632 case ACPI_HP_METHOD_WLAN_ENABLED:
633 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
634 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
635 val = ((val & HP_MASK_WLAN_ENABLED) != 0);
637 case ACPI_HP_METHOD_WLAN_RADIO:
638 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
639 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
640 val = ((val & HP_MASK_WLAN_RADIO) != 0);
642 case ACPI_HP_METHOD_WLAN_ON_AIR:
643 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
644 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
645 val = ((val & HP_MASK_WLAN_ON_AIR) != 0);
647 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
648 val = sc->wlan_enable_if_radio_on;
650 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
651 val = sc->wlan_disable_if_radio_off;
653 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
654 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
655 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
656 val = ((val & HP_MASK_BLUETOOTH_ENABLED) != 0);
658 case ACPI_HP_METHOD_BLUETOOTH_RADIO:
659 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
660 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
661 val = ((val & HP_MASK_BLUETOOTH_RADIO) != 0);
663 case ACPI_HP_METHOD_BLUETOOTH_ON_AIR:
664 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
665 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
666 val = ((val & HP_MASK_BLUETOOTH_ON_AIR) != 0);
668 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
669 val = sc->bluetooth_enable_if_radio_on;
671 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
672 val = sc->bluetooth_disable_if_radio_off;
674 case ACPI_HP_METHOD_WWAN_ENABLED:
675 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
676 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
677 val = ((val & HP_MASK_WWAN_ENABLED) != 0);
679 case ACPI_HP_METHOD_WWAN_RADIO:
680 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
681 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
682 val = ((val & HP_MASK_WWAN_RADIO) != 0);
684 case ACPI_HP_METHOD_WWAN_ON_AIR:
685 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
686 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
687 val = ((val & HP_MASK_WWAN_ON_AIR) != 0);
689 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
690 val = sc->wwan_enable_if_radio_on;
692 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
693 val = sc->wwan_disable_if_radio_off;
695 case ACPI_HP_METHOD_ALS:
696 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
697 ACPI_HP_WMI_ALS_COMMAND, 0, 0);
699 case ACPI_HP_METHOD_DISPLAY:
700 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
701 ACPI_HP_WMI_DISPLAY_COMMAND, 0, 0);
703 case ACPI_HP_METHOD_HDDTEMP:
704 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
705 ACPI_HP_WMI_HDDTEMP_COMMAND, 0, 0);
707 case ACPI_HP_METHOD_DOCK:
708 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
709 ACPI_HP_WMI_DOCK_COMMAND, 0, 0);
711 case ACPI_HP_METHOD_CMI_DETAIL:
712 val = sc->cmi_detail;
714 case ACPI_HP_METHOD_VERBOSE:
723 acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method, int arg, int oldarg)
725 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
726 ACPI_SERIAL_ASSERT(hp);
728 if (method != ACPI_HP_METHOD_CMI_DETAIL &&
729 method != ACPI_HP_METHOD_VERBOSE)
734 case ACPI_HP_METHOD_WLAN_ENABLED:
735 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
736 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
738 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
739 sc->wlan_enable_if_radio_on = arg;
740 acpi_hp_evaluate_auto_on_off(sc);
742 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
743 sc->wlan_disable_if_radio_off = arg;
744 acpi_hp_evaluate_auto_on_off(sc);
746 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
747 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
748 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
750 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
751 sc->bluetooth_enable_if_radio_on = arg;
752 acpi_hp_evaluate_auto_on_off(sc);
754 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
755 sc->bluetooth_disable_if_radio_off = arg?1:0;
756 acpi_hp_evaluate_auto_on_off(sc);
758 case ACPI_HP_METHOD_WWAN_ENABLED:
759 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
760 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
762 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
763 sc->wwan_enable_if_radio_on = arg?1:0;
764 acpi_hp_evaluate_auto_on_off(sc);
766 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
767 sc->wwan_disable_if_radio_off = arg?1:0;
768 acpi_hp_evaluate_auto_on_off(sc);
770 case ACPI_HP_METHOD_ALS:
771 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
772 ACPI_HP_WMI_ALS_COMMAND, 1,
774 case ACPI_HP_METHOD_CMI_DETAIL:
775 sc->cmi_detail = arg;
776 if ((arg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) !=
777 (oldarg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE)) {
778 sc->cmi_order_size = -1;
781 case ACPI_HP_METHOD_VERBOSE:
791 acpi_hp_free_buffer(ACPI_BUFFER* buf) {
792 if (buf && buf->Pointer) {
793 AcpiOsFree(buf->Pointer);
798 acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context)
800 device_t dev = context;
801 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
803 struct acpi_hp_softc *sc = device_get_softc(dev);
804 ACPI_BUFFER response = { ACPI_ALLOCATE_BUFFER, NULL };
806 ACPI_WMI_GET_EVENT_DATA(sc->wmi_dev, notify, &response);
807 obj = (ACPI_OBJECT*) response.Pointer;
808 if (obj && obj->Type == ACPI_TYPE_BUFFER && obj->Buffer.Length == 8) {
809 if (*((UINT8 *) obj->Buffer.Pointer) == 0x5) {
810 acpi_hp_evaluate_auto_on_off(sc);
813 acpi_hp_free_buffer(&response);
817 acpi_hp_exec_wmi_command(device_t wmi_dev, int command, int is_write, int val)
819 UINT32 params[5] = { 0x55434553,
826 ACPI_BUFFER in = { sizeof(params), ¶ms };
827 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
830 if (ACPI_FAILURE(ACPI_WMI_EVALUATE_CALL(wmi_dev, ACPI_HP_WMI_BIOS_GUID,
831 0, 0x3, &in, &out))) {
832 acpi_hp_free_buffer(&out);
836 if (!obj || obj->Type != ACPI_TYPE_BUFFER) {
837 acpi_hp_free_buffer(&out);
840 result = (UINT32*) obj->Buffer.Pointer;
845 acpi_hp_free_buffer(&out);
850 static __inline char*
851 acpi_hp_get_string_from_object(ACPI_OBJECT* obj, char* dst, size_t size) {
855 if (obj->Type == ACPI_TYPE_STRING) {
856 length = obj->String.Length+1;
860 strlcpy(dst, obj->String.Pointer, length);
861 acpi_hp_hex_decode(dst);
869 * Read BIOS Setting block in instance "instance".
870 * The block returned is ACPI_TYPE_PACKAGE which should contain the following
873 * 0 Setting Name [string]
874 * 1 Value (comma separated, asterisk marks the current value) [string]
875 * 2 Path within the bios hierarchy [string]
877 * 4 DisplayInUI [int]
878 * 5 RequiresPhysicalPresence [int]
879 * 6 Sequence for ordering within the bios settings (absolute) [int]
880 * 7 Length of prerequisites array [int]
881 * 8..8+[7] PrerequisiteN [string]
882 * 9+[7] Current value (in case of enum) [string] / Array length [int]
883 * 10+[7] Enum length [int] / Array values
884 * 11+[7]ff Enum value at index x [string]
887 acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid, UINT8 instance,
888 char* outbuf, size_t outsize, UINT32* sequence, int detail)
891 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
897 char string_buffer[size];
902 if (ACPI_FAILURE(ACPI_WMI_GET_BLOCK(wmi_dev, guid, instance, &out))) {
903 acpi_hp_free_buffer(&out);
907 if (!obj || obj->Type != ACPI_TYPE_PACKAGE) {
908 acpi_hp_free_buffer(&out);
912 if (obj->Package.Count >= 8 &&
913 obj->Package.Elements[7].Type == ACPI_TYPE_INTEGER) {
914 valuebase = 8 + obj->Package.Elements[7].Integer.Value;
917 /* check if this matches our expectations based on limited knowledge */
918 if (valuebase > 7 && obj->Package.Count > valuebase + 1 &&
919 obj->Package.Elements[0].Type == ACPI_TYPE_STRING &&
920 obj->Package.Elements[1].Type == ACPI_TYPE_STRING &&
921 obj->Package.Elements[2].Type == ACPI_TYPE_STRING &&
922 obj->Package.Elements[3].Type == ACPI_TYPE_INTEGER &&
923 obj->Package.Elements[4].Type == ACPI_TYPE_INTEGER &&
924 obj->Package.Elements[5].Type == ACPI_TYPE_INTEGER &&
925 obj->Package.Elements[6].Type == ACPI_TYPE_INTEGER &&
926 obj->Package.Elements[valuebase].Type == ACPI_TYPE_STRING &&
927 obj->Package.Elements[valuebase+1].Type == ACPI_TYPE_INTEGER &&
928 obj->Package.Count > valuebase +
929 obj->Package.Elements[valuebase+1].Integer.Value
931 enumbase = valuebase + 1;
932 if (detail & ACPI_HP_CMI_DETAIL_PATHS) {
933 strlcat(outbuf, acpi_hp_get_string_from_object(
934 &obj->Package.Elements[2], string_buffer, size),
937 while (strlen(outbuf) < outlen)
938 strlcat(outbuf, " ", outsize);
940 strlcat(outbuf, acpi_hp_get_string_from_object(
941 &obj->Package.Elements[0], string_buffer, size),
944 while (strlen(outbuf) < outlen)
945 strlcat(outbuf, " ", outsize);
946 strlcat(outbuf, acpi_hp_get_string_from_object(
947 &obj->Package.Elements[valuebase], string_buffer,
951 while (strlen(outbuf) < outlen)
952 strlcat(outbuf, " ", outsize);
953 for (i = 0; i < strlen(outbuf); ++i)
954 if (outbuf[i] == '\\')
956 if (detail & ACPI_HP_CMI_DETAIL_ENUMS) {
957 for (i = enumbase + 1; i < enumbase + 1 +
958 obj->Package.Elements[enumbase].Integer.Value;
960 acpi_hp_get_string_from_object(
961 &obj->Package.Elements[i], string_buffer,
963 if (strlen(string_buffer) > 1 ||
964 (strlen(string_buffer) == 1 &&
965 string_buffer[0] != ' ')) {
967 strlcat(outbuf, "/", outsize);
969 strlcat(outbuf, " (", outsize);
970 strlcat(outbuf, string_buffer, outsize);
976 strlcat(outbuf, ")", outsize);
977 if (detail & ACPI_HP_CMI_DETAIL_FLAGS) {
978 strlcat(outbuf, obj->Package.Elements[3].Integer.Value?
979 " [ReadOnly]":"", outsize);
980 strlcat(outbuf, obj->Package.Elements[4].Integer.Value?
981 "":" [NOUI]", outsize);
982 strlcat(outbuf, obj->Package.Elements[5].Integer.Value?
983 " [RPP]":"", outsize);
985 *sequence = (UINT32) obj->Package.Elements[6].Integer.Value;
987 acpi_hp_free_buffer(&out);
995 * Convert given two digit hex string (hexin) to an UINT8 referenced
997 * Return != 0 if the was a problem (invalid input)
999 static __inline int acpi_hp_hex_to_int(const UINT8 *hexin, UINT8 *byteout)
1006 if ('0' <= hi && hi <= '9')
1008 else if ('A' <= hi && hi <= 'F')
1010 else if ('a' <= hi && hi <= 'f')
1014 if ('0' <= lo && lo <= '9')
1016 else if ('A' <= lo && lo <= 'F')
1018 else if ('a' <= lo && lo <= 'f')
1022 *byteout = (hi << 4) + lo;
1029 acpi_hp_hex_decode(char* buffer)
1032 int length = strlen(buffer);
1036 if (((int)length/2)*2 == length || length < 10) return;
1038 for (i = 0; i<length; ++i) {
1040 if (buffer[i] != ' ')
1044 if (!((buffer[i] >= '0' && buffer[i] <= '9') ||
1045 (buffer[i] >= 'A' && buffer[i] <= 'F')))
1049 for (i = 0; i<length; i += 3) {
1052 acpi_hp_hex_to_int(uin, &uout);
1053 buffer[i/3] = (char) uout;
1055 buffer[(length+1)/3] = 0;
1063 acpi_hp_hpcmi_open(struct cdev* dev, int flags, int mode, struct thread *td)
1065 struct acpi_hp_softc *sc;
1068 if (dev == NULL || dev->si_drv1 == NULL)
1072 ACPI_SERIAL_BEGIN(hp);
1073 if (sc->hpcmi_open_pid != 0) {
1077 if (sbuf_new(&sc->hpcmi_sbuf, NULL, 4096, SBUF_AUTOEXTEND)
1081 sc->hpcmi_open_pid = td->td_proc->p_pid;
1082 sc->hpcmi_bufptr = 0;
1086 ACPI_SERIAL_END(hp);
1092 * close hpcmi device
1095 acpi_hp_hpcmi_close(struct cdev* dev, int flags, int mode, struct thread *td)
1097 struct acpi_hp_softc *sc;
1100 if (dev == NULL || dev->si_drv1 == NULL)
1104 ACPI_SERIAL_BEGIN(hp);
1105 if (sc->hpcmi_open_pid == 0) {
1109 if (sc->hpcmi_bufptr != -1) {
1110 sbuf_delete(&sc->hpcmi_sbuf);
1111 sc->hpcmi_bufptr = -1;
1113 sc->hpcmi_open_pid = 0;
1116 ACPI_SERIAL_END(hp);
1122 * Read from hpcmi bios information
1125 acpi_hp_hpcmi_read(struct cdev *dev, struct uio *buf, int flag)
1127 struct acpi_hp_softc *sc;
1132 int linesize = 1025;
1133 char line[linesize];
1135 if (dev == NULL || dev->si_drv1 == NULL)
1139 ACPI_SERIAL_BEGIN(hp);
1140 if (sc->hpcmi_open_pid != buf->uio_td->td_proc->p_pid
1141 || sc->hpcmi_bufptr == -1) {
1145 if (!sbuf_done(&sc->hpcmi_sbuf)) {
1146 if (sc->cmi_order_size < 0) {
1147 maxInstance = sc->has_cmi;
1148 if (!(sc->cmi_detail &
1149 ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) &&
1153 sc->cmi_order_size = 0;
1154 for (instance = 0; instance < maxInstance;
1156 if (acpi_hp_get_cmi_block(sc->wmi_dev,
1157 ACPI_HP_WMI_CMI_GUID, instance,
1158 line, linesize, &sequence,
1160 instance = maxInstance;
1163 pos = sc->cmi_order_size;
1165 i<sc->cmi_order_size && i<127;
1167 if (sc->cmi_order[i].sequence > sequence) {
1172 for (i=sc->cmi_order_size;
1175 sc->cmi_order[i].sequence =
1176 sc->cmi_order[i-1].sequence;
1177 sc->cmi_order[i].instance =
1178 sc->cmi_order[i-1].instance;
1180 sc->cmi_order[pos].sequence =
1182 sc->cmi_order[pos].instance =
1184 sc->cmi_order_size++;
1188 for (i=0; i<sc->cmi_order_size; ++i) {
1189 if (!acpi_hp_get_cmi_block(sc->wmi_dev,
1190 ACPI_HP_WMI_CMI_GUID,
1191 sc->cmi_order[i].instance, line, linesize,
1192 &sequence, sc->cmi_detail)) {
1193 sbuf_printf(&sc->hpcmi_sbuf, "%s\n", line);
1196 sbuf_finish(&sc->hpcmi_sbuf);
1198 if (sbuf_len(&sc->hpcmi_sbuf) <= 0) {
1199 sbuf_delete(&sc->hpcmi_sbuf);
1200 sc->hpcmi_bufptr = -1;
1201 sc->hpcmi_open_pid = 0;
1204 l = min(buf->uio_resid, sbuf_len(&sc->hpcmi_sbuf) -
1206 ret = (l > 0)?uiomove(sbuf_data(&sc->hpcmi_sbuf) +
1207 sc->hpcmi_bufptr, l, buf) : 0;
1208 sc->hpcmi_bufptr += l;
1211 ACPI_SERIAL_END(hp);