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 {
121 int has_notify; /* notification GUID found */
122 int has_cmi; /* CMI GUID found */
123 int cmi_detail; /* CMI detail level
125 int verbose; /* add debug output */
126 int wlan_enable_if_radio_on; /* set by sysctl */
127 int wlan_disable_if_radio_off; /* set by sysctl */
128 int bluetooth_enable_if_radio_on; /* set by sysctl */
129 int bluetooth_disable_if_radio_off; /* set by sysctl */
130 int wwan_enable_if_radio_on; /* set by sysctl */
131 int wwan_disable_if_radio_off; /* set by sysctl */
132 int was_wlan_on_air; /* last known WLAN
134 int was_bluetooth_on_air; /* last known BT
136 int was_wwan_on_air; /* last known WWAN
138 struct sysctl_ctx_list *sysctl_ctx;
139 struct sysctl_oid *sysctl_tree;
140 struct cdev *hpcmi_dev_t; /* hpcmi device handle */
141 struct sbuf hpcmi_sbuf; /* /dev/hpcmi output sbuf */
142 pid_t hpcmi_open_pid; /* pid operating on
144 int hpcmi_bufptr; /* current pointer position
145 in /dev/hpcmi output buffer
147 int cmi_order_size; /* size of cmi_order list */
148 struct acpi_hp_inst_seq_pair cmi_order[128]; /* list of CMI
149 instances ordered by BIOS suggested sequence */
157 } acpi_hp_sysctls[] = {
159 .name = "wlan_enabled",
160 .method = ACPI_HP_METHOD_WLAN_ENABLED,
161 .description = "Enable/Disable WLAN (WiFi)",
162 .access = CTLTYPE_INT | CTLFLAG_RW
165 .name = "wlan_radio",
166 .method = ACPI_HP_METHOD_WLAN_RADIO,
167 .description = "WLAN radio status",
168 .access = CTLTYPE_INT | CTLFLAG_RD
171 .name = "wlan_on_air",
172 .method = ACPI_HP_METHOD_WLAN_ON_AIR,
173 .description = "WLAN radio ready to use (enabled and radio)",
174 .access = CTLTYPE_INT | CTLFLAG_RD
177 .name = "wlan_enable_if_radio_on",
178 .method = ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON,
179 .description = "Enable WLAN if radio is turned on",
180 .access = CTLTYPE_INT | CTLFLAG_RW
183 .name = "wlan_disable_if_radio_off",
184 .method = ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF,
185 .description = "Disable WLAN if radio is turned off",
186 .access = CTLTYPE_INT | CTLFLAG_RW
189 .name = "bt_enabled",
190 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLED,
191 .description = "Enable/Disable Bluetooth",
192 .access = CTLTYPE_INT | CTLFLAG_RW
196 .method = ACPI_HP_METHOD_BLUETOOTH_RADIO,
197 .description = "Bluetooth radio status",
198 .access = CTLTYPE_INT | CTLFLAG_RD
202 .method = ACPI_HP_METHOD_BLUETOOTH_ON_AIR,
203 .description = "Bluetooth radio ready to use"
204 " (enabled and radio)",
205 .access = CTLTYPE_INT | CTLFLAG_RD
208 .name = "bt_enable_if_radio_on",
209 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON,
210 .description = "Enable bluetooth if radio is turned on",
211 .access = CTLTYPE_INT | CTLFLAG_RW
214 .name = "bt_disable_if_radio_off",
215 .method = ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF,
216 .description = "Disable bluetooth if radio is turned off",
217 .access = CTLTYPE_INT | CTLFLAG_RW
220 .name = "wwan_enabled",
221 .method = ACPI_HP_METHOD_WWAN_ENABLED,
222 .description = "Enable/Disable WWAN (UMTS)",
223 .access = CTLTYPE_INT | CTLFLAG_RW
226 .name = "wwan_radio",
227 .method = ACPI_HP_METHOD_WWAN_RADIO,
228 .description = "WWAN radio status",
229 .access = CTLTYPE_INT | CTLFLAG_RD
232 .name = "wwan_on_air",
233 .method = ACPI_HP_METHOD_WWAN_ON_AIR,
234 .description = "WWAN radio ready to use (enabled and radio)",
235 .access = CTLTYPE_INT | CTLFLAG_RD
238 .name = "wwan_enable_if_radio_on",
239 .method = ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON,
240 .description = "Enable WWAN if radio is turned on",
241 .access = CTLTYPE_INT | CTLFLAG_RW
244 .name = "wwan_disable_if_radio_off",
245 .method = ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF,
246 .description = "Disable WWAN if radio is turned off",
247 .access = CTLTYPE_INT | CTLFLAG_RW
250 .name = "als_enabled",
251 .method = ACPI_HP_METHOD_ALS,
252 .description = "Enable/Disable ALS (Ambient light sensor)",
253 .access = CTLTYPE_INT | CTLFLAG_RW
257 .method = ACPI_HP_METHOD_DISPLAY,
258 .description = "Display status",
259 .access = CTLTYPE_INT | CTLFLAG_RD
262 .name = "hdd_temperature",
263 .method = ACPI_HP_METHOD_HDDTEMP,
264 .description = "HDD temperature",
265 .access = CTLTYPE_INT | CTLFLAG_RD
269 .method = ACPI_HP_METHOD_DOCK,
270 .description = "Docking station status",
271 .access = CTLTYPE_INT | CTLFLAG_RD
274 .name = "cmi_detail",
275 .method = ACPI_HP_METHOD_CMI_DETAIL,
276 .description = "Details shown in CMI output "
278 .access = CTLTYPE_INT | CTLFLAG_RW
282 .method = ACPI_HP_METHOD_VERBOSE,
283 .description = "Verbosity level",
284 .access = CTLTYPE_INT | CTLFLAG_RW
290 ACPI_SERIAL_DECL(hp, "HP ACPI-WMI Mapping");
292 static int acpi_hp_probe(device_t dev);
293 static int acpi_hp_attach(device_t dev);
294 static int acpi_hp_detach(device_t dev);
296 static void acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc* sc);
297 static int acpi_hp_sysctl(SYSCTL_HANDLER_ARGS);
298 static int acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method,
299 int arg, int oldarg);
300 static int acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method);
301 static int acpi_hp_exec_wmi_command(device_t wmi_dev, int command,
302 int is_write, int val);
303 static void acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context);
304 static int acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid,
305 UINT8 instance, char* outbuf, size_t outsize,
306 UINT32* sequence, int detail);
307 static void acpi_hp_hex_decode(char* buffer);
309 static d_open_t acpi_hp_hpcmi_open;
310 static d_close_t acpi_hp_hpcmi_close;
311 static d_read_t acpi_hp_hpcmi_read;
313 /* handler /dev/hpcmi device */
314 static struct cdevsw hpcmi_cdevsw = {
315 .d_version = D_VERSION,
316 .d_open = acpi_hp_hpcmi_open,
317 .d_close = acpi_hp_hpcmi_close,
318 .d_read = acpi_hp_hpcmi_read,
322 static device_method_t acpi_hp_methods[] = {
323 DEVMETHOD(device_probe, acpi_hp_probe),
324 DEVMETHOD(device_attach, acpi_hp_attach),
325 DEVMETHOD(device_detach, acpi_hp_detach),
329 static driver_t acpi_hp_driver = {
332 sizeof(struct acpi_hp_softc),
335 static devclass_t acpi_hp_devclass;
337 DRIVER_MODULE(acpi_hp, acpi, acpi_hp_driver, acpi_hp_devclass,
339 MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1);
340 MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1);
343 acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc)
347 int new_bluetooth_status;
350 wireless = acpi_hp_exec_wmi_command(sc->wmi_dev,
351 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
352 new_wlan_status = -1;
353 new_bluetooth_status = -1;
354 new_wwan_status = -1;
357 device_printf(sc->wmi_dev, "Wireless status is %x\n", wireless);
358 if (sc->wlan_disable_if_radio_off && !(wireless & HP_MASK_WLAN_RADIO)
359 && (wireless & HP_MASK_WLAN_ENABLED)) {
360 acpi_hp_exec_wmi_command(sc->wmi_dev,
361 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x100);
364 else if (sc->wlan_enable_if_radio_on && (wireless & HP_MASK_WLAN_RADIO)
365 && !(wireless & HP_MASK_WLAN_ENABLED)) {
366 acpi_hp_exec_wmi_command(sc->wmi_dev,
367 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x101);
370 if (sc->bluetooth_disable_if_radio_off &&
371 !(wireless & HP_MASK_BLUETOOTH_RADIO) &&
372 (wireless & HP_MASK_BLUETOOTH_ENABLED)) {
373 acpi_hp_exec_wmi_command(sc->wmi_dev,
374 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x200);
375 new_bluetooth_status = 0;
377 else if (sc->bluetooth_enable_if_radio_on &&
378 (wireless & HP_MASK_BLUETOOTH_RADIO) &&
379 !(wireless & HP_MASK_BLUETOOTH_ENABLED)) {
380 acpi_hp_exec_wmi_command(sc->wmi_dev,
381 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x202);
382 new_bluetooth_status = 1;
384 if (sc->wwan_disable_if_radio_off &&
385 !(wireless & HP_MASK_WWAN_RADIO) &&
386 (wireless & HP_MASK_WWAN_ENABLED)) {
387 acpi_hp_exec_wmi_command(sc->wmi_dev,
388 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x400);
391 else if (sc->wwan_enable_if_radio_on &&
392 (wireless & HP_MASK_WWAN_RADIO) &&
393 !(wireless & HP_MASK_WWAN_ENABLED)) {
394 acpi_hp_exec_wmi_command(sc->wmi_dev,
395 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x404);
399 if (new_wlan_status == -1) {
400 new_wlan_status = (wireless & HP_MASK_WLAN_ON_AIR);
401 if ((new_wlan_status?1:0) != sc->was_wlan_on_air) {
402 sc->was_wlan_on_air = sc->was_wlan_on_air?0:1;
404 device_printf(sc->wmi_dev,
405 "WLAN on air changed to %i "
406 "(new_wlan_status is %i)\n",
407 sc->was_wlan_on_air, new_wlan_status);
408 acpi_UserNotify("HP", sc->handle,
409 0xc0+sc->was_wlan_on_air);
412 if (new_bluetooth_status == -1) {
413 new_bluetooth_status = (wireless & HP_MASK_BLUETOOTH_ON_AIR);
414 if ((new_bluetooth_status?1:0) != sc->was_bluetooth_on_air) {
415 sc->was_bluetooth_on_air = sc->was_bluetooth_on_air?
418 device_printf(sc->wmi_dev,
419 "BLUETOOTH on air changed"
420 " to %i (new_bluetooth_status is %i)\n",
421 sc->was_bluetooth_on_air,
422 new_bluetooth_status);
423 acpi_UserNotify("HP", sc->handle,
424 0xd0+sc->was_bluetooth_on_air);
427 if (new_wwan_status == -1) {
428 new_wwan_status = (wireless & HP_MASK_WWAN_ON_AIR);
429 if ((new_wwan_status?1:0) != sc->was_wwan_on_air) {
430 sc->was_wwan_on_air = sc->was_wwan_on_air?0:1;
432 device_printf(sc->wmi_dev,
433 "WWAN on air changed to %i"
434 " (new_wwan_status is %i)\n",
435 sc->was_wwan_on_air, new_wwan_status);
436 acpi_UserNotify("HP", sc->handle,
437 0xe0+sc->was_wwan_on_air);
443 acpi_hp_probe(device_t dev)
445 if (acpi_disabled("hp") || device_get_unit(dev) != 0)
447 device_set_desc(dev, "HP ACPI-WMI Mapping");
453 acpi_hp_attach(device_t dev)
455 struct acpi_hp_softc *sc;
456 struct acpi_softc *acpi_sc;
457 devclass_t wmi_devclass;
460 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
462 sc = device_get_softc(dev);
464 sc->handle = acpi_get_handle(dev);
467 sc->bluetooth_enable_if_radio_on = 0;
468 sc->bluetooth_disable_if_radio_off = 0;
469 sc->wlan_enable_if_radio_on = 0;
470 sc->wlan_disable_if_radio_off = 0;
471 sc->wlan_enable_if_radio_on = 0;
472 sc->wlan_disable_if_radio_off = 0;
473 sc->was_wlan_on_air = 0;
474 sc->was_bluetooth_on_air = 0;
475 sc->was_wwan_on_air = 0;
477 sc->cmi_order_size = -1;
479 memset(sc->cmi_order, 0, sizeof(sc->cmi_order));
480 acpi_sc = acpi_device_get_parent_softc(dev);
482 if (!(wmi_devclass = devclass_find ("acpi_wmi"))) {
483 device_printf(dev, "Couldn't find acpi_wmi devclass\n");
486 if (!(sc->wmi_dev = devclass_get_device(wmi_devclass, 0))) {
487 device_printf(dev, "Couldn't find acpi_wmi device\n");
490 if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
491 ACPI_HP_WMI_BIOS_GUID)) {
493 "WMI device does not provide the HP BIOS GUID\n");
496 if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
497 ACPI_HP_WMI_EVENT_GUID)) {
499 "HP event GUID detected, installing event handler\n");
500 if (ACPI_WMI_INSTALL_EVENT_HANDLER(sc->wmi_dev,
501 ACPI_HP_WMI_EVENT_GUID, acpi_hp_notify, dev)) {
503 "Could not install notification handler!\n");
510 ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_HP_WMI_CMI_GUID)
512 device_printf(dev, "HP CMI GUID detected\n");
516 sc->hpcmi_dev_t = make_dev(&hpcmi_cdevsw, 0, UID_ROOT,
517 GID_WHEEL, 0644, "hpcmi");
518 sc->hpcmi_dev_t->si_drv1 = sc;
519 sc->hpcmi_open_pid = 0;
520 sc->hpcmi_bufptr = -1;
523 ACPI_SERIAL_BEGIN(hp);
525 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
526 sc->sysctl_tree = device_get_sysctl_tree(dev);
527 for (int i = 0; acpi_hp_sysctls[i].name != NULL; ++i) {
529 if ((!sc->has_notify &&
530 (acpi_hp_sysctls[i].method ==
531 ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON ||
532 acpi_hp_sysctls[i].method ==
533 ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF ||
534 acpi_hp_sysctls[i].method ==
535 ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON ||
536 acpi_hp_sysctls[i].method ==
537 ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF ||
538 acpi_hp_sysctls[i].method ==
539 ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON ||
540 acpi_hp_sysctls[i].method ==
541 ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF)) ||
542 (arg = acpi_hp_sysctl_get(sc,
543 acpi_hp_sysctls[i].method)) < 0) {
546 if (acpi_hp_sysctls[i].method == ACPI_HP_METHOD_WLAN_ON_AIR) {
547 sc->was_wlan_on_air = arg;
549 else if (acpi_hp_sysctls[i].method ==
550 ACPI_HP_METHOD_BLUETOOTH_ON_AIR) {
551 sc->was_bluetooth_on_air = arg;
553 else if (acpi_hp_sysctls[i].method ==
554 ACPI_HP_METHOD_WWAN_ON_AIR) {
555 sc->was_wwan_on_air = arg;
558 SYSCTL_ADD_PROC(sc->sysctl_ctx,
559 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
560 acpi_hp_sysctls[i].name, acpi_hp_sysctls[i].access,
561 sc, i, acpi_hp_sysctl, "I",
562 acpi_hp_sysctls[i].description);
570 acpi_hp_detach(device_t dev)
574 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
575 struct acpi_hp_softc *sc = device_get_softc(dev);
576 if (sc->has_cmi && sc->hpcmi_open_pid != 0) {
580 if (sc->has_notify) {
581 ACPI_WMI_REMOVE_EVENT_HANDLER(dev,
582 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);
597 acpi_hp_sysctl(SYSCTL_HANDLER_ARGS)
599 struct acpi_hp_softc *sc;
606 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
608 sc = (struct acpi_hp_softc *)oidp->oid_arg1;
609 function = oidp->oid_arg2;
610 method = acpi_hp_sysctls[function].method;
612 ACPI_SERIAL_BEGIN(hp);
613 arg = acpi_hp_sysctl_get(sc, method);
615 error = sysctl_handle_int(oidp, &arg, 0, req);
616 if (!error && req->newptr != NULL) {
617 error = acpi_hp_sysctl_set(sc, method, arg, oldarg);
625 acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method)
629 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
630 ACPI_SERIAL_ASSERT(hp);
633 case ACPI_HP_METHOD_WLAN_ENABLED:
634 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
635 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
636 val = ((val & HP_MASK_WLAN_ENABLED) != 0);
638 case ACPI_HP_METHOD_WLAN_RADIO:
639 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
640 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
641 val = ((val & HP_MASK_WLAN_RADIO) != 0);
643 case ACPI_HP_METHOD_WLAN_ON_AIR:
644 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
645 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
646 val = ((val & HP_MASK_WLAN_ON_AIR) != 0);
648 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
649 val = sc->wlan_enable_if_radio_on;
651 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
652 val = sc->wlan_disable_if_radio_off;
654 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
655 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
656 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
657 val = ((val & HP_MASK_BLUETOOTH_ENABLED) != 0);
659 case ACPI_HP_METHOD_BLUETOOTH_RADIO:
660 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
661 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
662 val = ((val & HP_MASK_BLUETOOTH_RADIO) != 0);
664 case ACPI_HP_METHOD_BLUETOOTH_ON_AIR:
665 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
666 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
667 val = ((val & HP_MASK_BLUETOOTH_ON_AIR) != 0);
669 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
670 val = sc->bluetooth_enable_if_radio_on;
672 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
673 val = sc->bluetooth_disable_if_radio_off;
675 case ACPI_HP_METHOD_WWAN_ENABLED:
676 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
677 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
678 val = ((val & HP_MASK_WWAN_ENABLED) != 0);
680 case ACPI_HP_METHOD_WWAN_RADIO:
681 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
682 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
683 val = ((val & HP_MASK_WWAN_RADIO) != 0);
685 case ACPI_HP_METHOD_WWAN_ON_AIR:
686 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
687 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
688 val = ((val & HP_MASK_WWAN_ON_AIR) != 0);
690 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
691 val = sc->wwan_enable_if_radio_on;
693 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
694 val = sc->wwan_disable_if_radio_off;
696 case ACPI_HP_METHOD_ALS:
697 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
698 ACPI_HP_WMI_ALS_COMMAND, 0, 0);
700 case ACPI_HP_METHOD_DISPLAY:
701 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
702 ACPI_HP_WMI_DISPLAY_COMMAND, 0, 0);
704 case ACPI_HP_METHOD_HDDTEMP:
705 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
706 ACPI_HP_WMI_HDDTEMP_COMMAND, 0, 0);
708 case ACPI_HP_METHOD_DOCK:
709 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
710 ACPI_HP_WMI_DOCK_COMMAND, 0, 0);
712 case ACPI_HP_METHOD_CMI_DETAIL:
713 val = sc->cmi_detail;
715 case ACPI_HP_METHOD_VERBOSE:
724 acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method, int arg, int oldarg)
726 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
727 ACPI_SERIAL_ASSERT(hp);
729 if (method != ACPI_HP_METHOD_CMI_DETAIL &&
730 method != ACPI_HP_METHOD_VERBOSE)
735 case ACPI_HP_METHOD_WLAN_ENABLED:
736 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
737 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
739 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
740 sc->wlan_enable_if_radio_on = arg;
741 acpi_hp_evaluate_auto_on_off(sc);
743 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
744 sc->wlan_disable_if_radio_off = arg;
745 acpi_hp_evaluate_auto_on_off(sc);
747 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
748 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
749 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
751 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
752 sc->bluetooth_enable_if_radio_on = arg;
753 acpi_hp_evaluate_auto_on_off(sc);
755 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
756 sc->bluetooth_disable_if_radio_off = arg?1:0;
757 acpi_hp_evaluate_auto_on_off(sc);
759 case ACPI_HP_METHOD_WWAN_ENABLED:
760 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
761 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
763 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
764 sc->wwan_enable_if_radio_on = arg?1:0;
765 acpi_hp_evaluate_auto_on_off(sc);
767 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
768 sc->wwan_disable_if_radio_off = arg?1:0;
769 acpi_hp_evaluate_auto_on_off(sc);
771 case ACPI_HP_METHOD_ALS:
772 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
773 ACPI_HP_WMI_ALS_COMMAND, 1,
775 case ACPI_HP_METHOD_CMI_DETAIL:
776 sc->cmi_detail = arg;
777 if ((arg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) !=
778 (oldarg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE)) {
779 sc->cmi_order_size = -1;
782 case ACPI_HP_METHOD_VERBOSE:
792 acpi_hp_free_buffer(ACPI_BUFFER* buf) {
793 if (buf && buf->Pointer) {
794 AcpiOsFree(buf->Pointer);
799 acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context)
801 device_t dev = context;
802 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
804 struct acpi_hp_softc *sc = device_get_softc(dev);
805 ACPI_BUFFER response = { ACPI_ALLOCATE_BUFFER, NULL };
807 ACPI_WMI_GET_EVENT_DATA(sc->wmi_dev, notify, &response);
808 obj = (ACPI_OBJECT*) response.Pointer;
809 if (obj && obj->Type == ACPI_TYPE_BUFFER && obj->Buffer.Length == 8) {
810 if (*((UINT8 *) obj->Buffer.Pointer) == 0x5) {
811 acpi_hp_evaluate_auto_on_off(sc);
814 acpi_hp_free_buffer(&response);
818 acpi_hp_exec_wmi_command(device_t wmi_dev, int command, int is_write, int val)
820 UINT32 params[5] = { 0x55434553,
827 ACPI_BUFFER in = { sizeof(params), ¶ms };
828 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
831 if (ACPI_FAILURE(ACPI_WMI_EVALUATE_CALL(wmi_dev, ACPI_HP_WMI_BIOS_GUID,
832 0, 0x3, &in, &out))) {
833 acpi_hp_free_buffer(&out);
837 if (!obj || obj->Type != ACPI_TYPE_BUFFER) {
838 acpi_hp_free_buffer(&out);
841 result = (UINT32*) obj->Buffer.Pointer;
846 acpi_hp_free_buffer(&out);
851 static __inline char*
852 acpi_hp_get_string_from_object(ACPI_OBJECT* obj, char* dst, size_t size) {
856 if (obj->Type == ACPI_TYPE_STRING) {
857 length = obj->String.Length+1;
861 strlcpy(dst, obj->String.Pointer, length);
862 acpi_hp_hex_decode(dst);
870 * Read BIOS Setting block in instance "instance".
871 * The block returned is ACPI_TYPE_PACKAGE which should contain the following
874 * 0 Setting Name [string]
875 * 1 Value (comma separated, asterisk marks the current value) [string]
876 * 2 Path within the bios hierarchy [string]
878 * 4 DisplayInUI [int]
879 * 5 RequiresPhysicalPresence [int]
880 * 6 Sequence for ordering within the bios settings (absolute) [int]
881 * 7 Length of prerequisites array [int]
882 * 8..8+[7] PrerequisiteN [string]
883 * 9+[7] Current value (in case of enum) [string] / Array length [int]
884 * 10+[7] Enum length [int] / Array values
885 * 11+[7]ff Enum value at index x [string]
888 acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid, UINT8 instance,
889 char* outbuf, size_t outsize, UINT32* sequence, int detail)
892 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
898 char string_buffer[size];
903 if (ACPI_FAILURE(ACPI_WMI_GET_BLOCK(wmi_dev, guid, instance, &out))) {
904 acpi_hp_free_buffer(&out);
908 if (!obj && obj->Type != ACPI_TYPE_PACKAGE) {
909 acpi_hp_free_buffer(&out);
913 if (obj->Package.Count >= 8 &&
914 obj->Package.Elements[7].Type == ACPI_TYPE_INTEGER) {
915 valuebase = 8 + obj->Package.Elements[7].Integer.Value;
918 /* check if this matches our expectations based on limited knowledge */
919 if (valuebase > 7 && obj->Package.Count > valuebase + 1 &&
920 obj->Package.Elements[0].Type == ACPI_TYPE_STRING &&
921 obj->Package.Elements[1].Type == ACPI_TYPE_STRING &&
922 obj->Package.Elements[2].Type == ACPI_TYPE_STRING &&
923 obj->Package.Elements[3].Type == ACPI_TYPE_INTEGER &&
924 obj->Package.Elements[4].Type == ACPI_TYPE_INTEGER &&
925 obj->Package.Elements[5].Type == ACPI_TYPE_INTEGER &&
926 obj->Package.Elements[6].Type == ACPI_TYPE_INTEGER &&
927 obj->Package.Elements[valuebase].Type == ACPI_TYPE_STRING &&
928 obj->Package.Elements[valuebase+1].Type == ACPI_TYPE_INTEGER &&
929 obj->Package.Count > valuebase +
930 obj->Package.Elements[valuebase+1].Integer.Value
932 enumbase = valuebase + 1;
933 if (detail & ACPI_HP_CMI_DETAIL_PATHS) {
934 strlcat(outbuf, acpi_hp_get_string_from_object(
935 &obj->Package.Elements[2], string_buffer, size),
938 while (strlen(outbuf) < outlen)
939 strlcat(outbuf, " ", outsize);
941 strlcat(outbuf, acpi_hp_get_string_from_object(
942 &obj->Package.Elements[0], string_buffer, size),
945 while (strlen(outbuf) < outlen)
946 strlcat(outbuf, " ", outsize);
947 strlcat(outbuf, acpi_hp_get_string_from_object(
948 &obj->Package.Elements[valuebase], string_buffer,
952 while (strlen(outbuf) < outlen)
953 strlcat(outbuf, " ", outsize);
954 for (i = 0; i < strlen(outbuf); ++i)
955 if (outbuf[i] == '\\')
957 if (detail & ACPI_HP_CMI_DETAIL_ENUMS) {
958 for (i = enumbase + 1; i < enumbase + 1 +
959 obj->Package.Elements[enumbase].Integer.Value;
961 acpi_hp_get_string_from_object(
962 &obj->Package.Elements[i], string_buffer,
964 if (strlen(string_buffer) > 1 ||
965 (strlen(string_buffer) == 1 &&
966 string_buffer[0] != ' ')) {
968 strlcat(outbuf, "/", outsize);
970 strlcat(outbuf, " (", outsize);
971 strlcat(outbuf, string_buffer, outsize);
977 strlcat(outbuf, ")", outsize);
978 if (detail & ACPI_HP_CMI_DETAIL_FLAGS) {
979 strlcat(outbuf, obj->Package.Elements[3].Integer.Value?
980 " [ReadOnly]":"", outsize);
981 strlcat(outbuf, obj->Package.Elements[4].Integer.Value?
982 "":" [NOUI]", outsize);
983 strlcat(outbuf, obj->Package.Elements[5].Integer.Value?
984 " [RPP]":"", outsize);
986 *sequence = (UINT32) obj->Package.Elements[6].Integer.Value;
988 acpi_hp_free_buffer(&out);
996 * Convert given two digit hex string (hexin) to an UINT8 referenced
998 * Return != 0 if the was a problem (invalid input)
1000 static __inline int acpi_hp_hex_to_int(const UINT8 *hexin, UINT8 *byteout)
1007 if ('0' <= hi && hi <= '9')
1009 else if ('A' <= hi && hi <= 'F')
1011 else if ('a' <= hi && hi <= 'f')
1015 if ('0' <= lo && lo <= '9')
1017 else if ('A' <= lo && lo <= 'F')
1019 else if ('a' <= lo && lo <= 'f')
1023 *byteout = (hi << 4) + lo;
1030 acpi_hp_hex_decode(char* buffer)
1033 int length = strlen(buffer);
1037 if (((int)length/2)*2 == length || length < 10) return;
1039 for (i = 0; i<length; ++i) {
1041 if (buffer[i] != ' ')
1045 if (!((buffer[i] >= '0' && buffer[i] <= '9') ||
1046 (buffer[i] >= 'A' && buffer[i] <= 'F')))
1050 for (i = 0; i<length; i += 3) {
1053 acpi_hp_hex_to_int(uin, &uout);
1054 buffer[i/3] = (char) uout;
1056 buffer[(length+1)/3] = 0;
1064 acpi_hp_hpcmi_open(struct cdev* dev, int flags, int mode, struct thread *td)
1066 struct acpi_hp_softc *sc;
1069 if (dev == NULL || dev->si_drv1 == NULL)
1073 ACPI_SERIAL_BEGIN(hp);
1074 if (sc->hpcmi_open_pid != 0) {
1078 if (sbuf_new(&sc->hpcmi_sbuf, NULL, 4096, SBUF_AUTOEXTEND)
1082 sc->hpcmi_open_pid = td->td_proc->p_pid;
1083 sc->hpcmi_bufptr = 0;
1087 ACPI_SERIAL_END(hp);
1093 * close hpcmi device
1096 acpi_hp_hpcmi_close(struct cdev* dev, int flags, int mode, struct thread *td)
1098 struct acpi_hp_softc *sc;
1101 if (dev == NULL || dev->si_drv1 == NULL)
1105 ACPI_SERIAL_BEGIN(hp);
1106 if (sc->hpcmi_open_pid == 0) {
1110 if (sc->hpcmi_bufptr != -1) {
1111 sbuf_delete(&sc->hpcmi_sbuf);
1112 sc->hpcmi_bufptr = -1;
1114 sc->hpcmi_open_pid = 0;
1117 ACPI_SERIAL_END(hp);
1123 * Read from hpcmi bios information
1126 acpi_hp_hpcmi_read(struct cdev *dev, struct uio *buf, int flag)
1128 struct acpi_hp_softc *sc;
1133 int linesize = 1025;
1134 char line[linesize];
1136 if (dev == NULL || dev->si_drv1 == NULL)
1140 ACPI_SERIAL_BEGIN(hp);
1141 if (sc->hpcmi_open_pid != buf->uio_td->td_proc->p_pid
1142 || sc->hpcmi_bufptr == -1) {
1146 if (!sbuf_done(&sc->hpcmi_sbuf)) {
1147 if (sc->cmi_order_size < 0) {
1148 maxInstance = sc->has_cmi;
1149 if (!(sc->cmi_detail &
1150 ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) &&
1154 sc->cmi_order_size = 0;
1155 for (instance = 0; instance < maxInstance;
1157 if (acpi_hp_get_cmi_block(sc->wmi_dev,
1158 ACPI_HP_WMI_CMI_GUID, instance,
1159 line, linesize, &sequence,
1161 instance = maxInstance;
1164 pos = sc->cmi_order_size;
1166 i<sc->cmi_order_size && i<127;
1168 if (sc->cmi_order[i].sequence > sequence) {
1173 for (i=sc->cmi_order_size;
1176 sc->cmi_order[i].sequence =
1177 sc->cmi_order[i-1].sequence;
1178 sc->cmi_order[i].instance =
1179 sc->cmi_order[i-1].instance;
1181 sc->cmi_order[pos].sequence =
1183 sc->cmi_order[pos].instance =
1185 sc->cmi_order_size++;
1189 for (i=0; i<sc->cmi_order_size; ++i) {
1190 if (!acpi_hp_get_cmi_block(sc->wmi_dev,
1191 ACPI_HP_WMI_CMI_GUID,
1192 sc->cmi_order[i].instance, line, linesize,
1193 &sequence, sc->cmi_detail)) {
1194 sbuf_printf(&sc->hpcmi_sbuf, "%s\n", line);
1197 sbuf_finish(&sc->hpcmi_sbuf);
1199 if (sbuf_len(&sc->hpcmi_sbuf) <= 0) {
1200 sbuf_delete(&sc->hpcmi_sbuf);
1201 sc->hpcmi_bufptr = -1;
1202 sc->hpcmi_open_pid = 0;
1205 l = min(buf->uio_resid, sbuf_len(&sc->hpcmi_sbuf) -
1207 ret = (l > 0)?uiomove(sbuf_data(&sc->hpcmi_sbuf) +
1208 sc->hpcmi_bufptr, l, buf) : 0;
1209 sc->hpcmi_bufptr += l;
1212 ACPI_SERIAL_END(hp);