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
26 * $FreeBSD: src/sys/dev/acpi_support/acpi_hp.c,v 1.3 2009/07/03 21:12:37 rpaulo
30 * Driver for extra ACPI-controlled features found on HP laptops
31 * that use a WMI enabled BIOS (e.g. HP Compaq 8510p and 6510p).
32 * Allows to control and read status of integrated hardware and read
33 * BIOS settings through CMI.
34 * Inspired by the hp-wmi driver, which implements a subset of these
35 * features (hotkeys) on Linux.
38 * http://h20331.www2.hp.com/Hpsub/downloads/cmi_whitepaper.pdf
40 * http://www.kernel.org
42 * http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
46 #include <sys/param.h>
50 #include <sys/kernel.h>
53 #include <sys/module.h>
54 #include <sys/sysctl.h>
55 #include <sys/device.h>
59 #include <dev/acpica5/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 #define sbuf_done(s) ((s)->s_flags & SBUF_FINISHED)
114 struct acpi_hp_inst_seq_pair {
115 UINT32 sequence; /* sequence number as suggested by cmi bios */
116 UINT8 instance; /* object instance on guid */
119 struct acpi_hp_softc {
123 int has_notify; /* notification GUID found */
124 int has_cmi; /* CMI GUID found */
125 int cmi_detail; /* CMI detail level
127 int verbose; /* add debug output */
128 int wlan_enable_if_radio_on; /* set by sysctl */
129 int wlan_disable_if_radio_off; /* set by sysctl */
130 int bluetooth_enable_if_radio_on; /* set by sysctl */
131 int bluetooth_disable_if_radio_off; /* set by sysctl */
132 int wwan_enable_if_radio_on; /* set by sysctl */
133 int wwan_disable_if_radio_off; /* set by sysctl */
134 int was_wlan_on_air; /* last known WLAN
136 int was_bluetooth_on_air; /* last known BT
138 int was_wwan_on_air; /* last known WWAN
140 struct sysctl_ctx_list sysctl_ctx;
141 struct sysctl_oid *sysctl_tree;
142 struct cdev *hpcmi_dev_t; /* hpcmi device handle */
143 struct sbuf hpcmi_sbuf; /* /dev/hpcmi output sbuf */
144 pid_t hpcmi_open_pid; /* pid operating on
146 int hpcmi_bufptr; /* current pointer position
147 in /dev/hpcmi output buffer
149 int cmi_order_size; /* size of cmi_order list */
150 struct acpi_hp_inst_seq_pair cmi_order[128]; /* list of CMI
151 instances ordered by BIOS suggested sequence */
159 } acpi_hp_sysctls[] = {
161 .name = "wlan_enabled",
162 .method = ACPI_HP_METHOD_WLAN_ENABLED,
163 .description = "Enable/Disable WLAN (WiFi)",
164 .access = CTLTYPE_INT | CTLFLAG_RW
167 .name = "wlan_radio",
168 .method = ACPI_HP_METHOD_WLAN_RADIO,
169 .description = "WLAN radio status",
170 .access = CTLTYPE_INT | CTLFLAG_RD
173 .name = "wlan_on_air",
174 .method = ACPI_HP_METHOD_WLAN_ON_AIR,
175 .description = "WLAN radio ready to use (enabled and radio)",
176 .access = CTLTYPE_INT | CTLFLAG_RD
179 .name = "wlan_enable_if_radio_on",
180 .method = ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON,
181 .description = "Enable WLAN if radio is turned on",
182 .access = CTLTYPE_INT | CTLFLAG_RW
185 .name = "wlan_disable_if_radio_off",
186 .method = ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF,
187 .description = "Disable WLAN if radio is turned off",
188 .access = CTLTYPE_INT | CTLFLAG_RW
191 .name = "bt_enabled",
192 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLED,
193 .description = "Enable/Disable Bluetooth",
194 .access = CTLTYPE_INT | CTLFLAG_RW
198 .method = ACPI_HP_METHOD_BLUETOOTH_RADIO,
199 .description = "Bluetooth radio status",
200 .access = CTLTYPE_INT | CTLFLAG_RD
204 .method = ACPI_HP_METHOD_BLUETOOTH_ON_AIR,
205 .description = "Bluetooth radio ready to use"
206 " (enabled and radio)",
207 .access = CTLTYPE_INT | CTLFLAG_RD
210 .name = "bt_enable_if_radio_on",
211 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON,
212 .description = "Enable bluetooth if radio is turned on",
213 .access = CTLTYPE_INT | CTLFLAG_RW
216 .name = "bt_disable_if_radio_off",
217 .method = ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF,
218 .description = "Disable bluetooth if radio is turned off",
219 .access = CTLTYPE_INT | CTLFLAG_RW
222 .name = "wwan_enabled",
223 .method = ACPI_HP_METHOD_WWAN_ENABLED,
224 .description = "Enable/Disable WWAN (UMTS)",
225 .access = CTLTYPE_INT | CTLFLAG_RW
228 .name = "wwan_radio",
229 .method = ACPI_HP_METHOD_WWAN_RADIO,
230 .description = "WWAN radio status",
231 .access = CTLTYPE_INT | CTLFLAG_RD
234 .name = "wwan_on_air",
235 .method = ACPI_HP_METHOD_WWAN_ON_AIR,
236 .description = "WWAN radio ready to use (enabled and radio)",
237 .access = CTLTYPE_INT | CTLFLAG_RD
240 .name = "wwan_enable_if_radio_on",
241 .method = ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON,
242 .description = "Enable WWAN if radio is turned on",
243 .access = CTLTYPE_INT | CTLFLAG_RW
246 .name = "wwan_disable_if_radio_off",
247 .method = ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF,
248 .description = "Disable WWAN if radio is turned off",
249 .access = CTLTYPE_INT | CTLFLAG_RW
252 .name = "als_enabled",
253 .method = ACPI_HP_METHOD_ALS,
254 .description = "Enable/Disable ALS (Ambient light sensor)",
255 .access = CTLTYPE_INT | CTLFLAG_RW
259 .method = ACPI_HP_METHOD_DISPLAY,
260 .description = "Display status",
261 .access = CTLTYPE_INT | CTLFLAG_RD
264 .name = "hdd_temperature",
265 .method = ACPI_HP_METHOD_HDDTEMP,
266 .description = "HDD temperature",
267 .access = CTLTYPE_INT | CTLFLAG_RD
271 .method = ACPI_HP_METHOD_DOCK,
272 .description = "Docking station status",
273 .access = CTLTYPE_INT | CTLFLAG_RD
276 .name = "cmi_detail",
277 .method = ACPI_HP_METHOD_CMI_DETAIL,
278 .description = "Details shown in CMI output "
280 .access = CTLTYPE_INT | CTLFLAG_RW
284 .method = ACPI_HP_METHOD_VERBOSE,
285 .description = "Verbosity level",
286 .access = CTLTYPE_INT | CTLFLAG_RW
292 ACPI_SERIAL_DECL(hp, "HP ACPI-WMI Mapping");
294 static int acpi_hp_probe(device_t dev);
295 static int acpi_hp_attach(device_t dev);
296 static int acpi_hp_detach(device_t dev);
298 static void acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc* sc);
299 static int acpi_hp_sysctl(SYSCTL_HANDLER_ARGS);
300 static int acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method,
301 int arg, int oldarg);
302 static int acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method);
303 static int acpi_hp_exec_wmi_command(device_t wmi_dev, int command,
304 int is_write, int val);
305 static void acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context);
306 static int acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid,
307 UINT8 instance, char* outbuf, size_t outsize,
308 UINT32* sequence, int detail);
309 static void acpi_hp_hex_decode(char* buffer);
311 #if defined (__FreeBSD__)
312 static d_open_t acpi_hp_hpcmi_open;
313 static d_close_t acpi_hp_hpcmi_close;
314 static d_read_t acpi_hp_hpcmi_read;
316 static int acpi_hp_hpcmi_open(struct dev_open_args *ap);
317 static int acpi_hp_hpcmi_close(struct dev_close_args *ap);
318 static int acpi_hp_hpcmi_read(struct dev_read_args *ap);
321 /* handler /dev/hpcmi device */
322 static struct dev_ops hpcmi_ops = {
324 .d_open = acpi_hp_hpcmi_open,
325 .d_close = acpi_hp_hpcmi_close,
326 .d_read = acpi_hp_hpcmi_read,
329 static device_method_t acpi_hp_methods[] = {
330 DEVMETHOD(device_probe, acpi_hp_probe),
331 DEVMETHOD(device_attach, acpi_hp_attach),
332 DEVMETHOD(device_detach, acpi_hp_detach),
336 static driver_t acpi_hp_driver = {
339 sizeof(struct acpi_hp_softc),
342 static devclass_t acpi_hp_devclass;
344 DRIVER_MODULE(acpi_hp, acpi, acpi_hp_driver, acpi_hp_devclass,
346 MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1);
347 MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1);
350 acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc)
354 int new_bluetooth_status;
357 wireless = acpi_hp_exec_wmi_command(sc->wmi_dev,
358 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
359 new_wlan_status = -1;
360 new_bluetooth_status = -1;
361 new_wwan_status = -1;
364 device_printf(sc->wmi_dev, "Wireless status is %x\n", wireless);
365 if (sc->wlan_disable_if_radio_off && !(wireless & HP_MASK_WLAN_RADIO)
366 && (wireless & HP_MASK_WLAN_ENABLED)) {
367 acpi_hp_exec_wmi_command(sc->wmi_dev,
368 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x100);
371 else if (sc->wlan_enable_if_radio_on && (wireless & HP_MASK_WLAN_RADIO)
372 && !(wireless & HP_MASK_WLAN_ENABLED)) {
373 acpi_hp_exec_wmi_command(sc->wmi_dev,
374 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x101);
377 if (sc->bluetooth_disable_if_radio_off &&
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, 0x200);
382 new_bluetooth_status = 0;
384 else if (sc->bluetooth_enable_if_radio_on &&
385 (wireless & HP_MASK_BLUETOOTH_RADIO) &&
386 !(wireless & HP_MASK_BLUETOOTH_ENABLED)) {
387 acpi_hp_exec_wmi_command(sc->wmi_dev,
388 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x202);
389 new_bluetooth_status = 1;
391 if (sc->wwan_disable_if_radio_off &&
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, 0x400);
398 else if (sc->wwan_enable_if_radio_on &&
399 (wireless & HP_MASK_WWAN_RADIO) &&
400 !(wireless & HP_MASK_WWAN_ENABLED)) {
401 acpi_hp_exec_wmi_command(sc->wmi_dev,
402 ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x404);
406 if (new_wlan_status == -1) {
407 new_wlan_status = (wireless & HP_MASK_WLAN_ON_AIR);
408 if ((new_wlan_status?1:0) != sc->was_wlan_on_air) {
409 sc->was_wlan_on_air = sc->was_wlan_on_air?0:1;
411 device_printf(sc->wmi_dev,
412 "WLAN on air changed to %i "
413 "(new_wlan_status is %i)\n",
414 sc->was_wlan_on_air, new_wlan_status);
415 acpi_UserNotify("HP", sc->handle,
416 0xc0+sc->was_wlan_on_air);
419 if (new_bluetooth_status == -1) {
420 new_bluetooth_status = (wireless & HP_MASK_BLUETOOTH_ON_AIR);
421 if ((new_bluetooth_status?1:0) != sc->was_bluetooth_on_air) {
422 sc->was_bluetooth_on_air = sc->was_bluetooth_on_air?
425 device_printf(sc->wmi_dev,
426 "BLUETOOTH on air changed"
427 " to %i (new_bluetooth_status is %i)\n",
428 sc->was_bluetooth_on_air,
429 new_bluetooth_status);
430 acpi_UserNotify("HP", sc->handle,
431 0xd0+sc->was_bluetooth_on_air);
434 if (new_wwan_status == -1) {
435 new_wwan_status = (wireless & HP_MASK_WWAN_ON_AIR);
436 if ((new_wwan_status?1:0) != sc->was_wwan_on_air) {
437 sc->was_wwan_on_air = sc->was_wwan_on_air?0:1;
439 device_printf(sc->wmi_dev,
440 "WWAN on air changed to %i"
441 " (new_wwan_status is %i)\n",
442 sc->was_wwan_on_air, new_wwan_status);
443 acpi_UserNotify("HP", sc->handle,
444 0xe0+sc->was_wwan_on_air);
450 acpi_hp_probe(device_t dev)
452 if (acpi_disabled("hp") || device_get_unit(dev) != 0)
454 device_set_desc(dev, "HP ACPI-WMI Mapping");
460 acpi_hp_attach(device_t dev)
462 struct acpi_hp_softc *sc;
463 struct acpi_softc *acpi_sc;
464 devclass_t wmi_devclass;
467 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
469 sc = device_get_softc(dev);
471 sc->handle = acpi_get_handle(dev);
474 sc->bluetooth_enable_if_radio_on = 0;
475 sc->bluetooth_disable_if_radio_off = 0;
476 sc->wlan_enable_if_radio_on = 0;
477 sc->wlan_disable_if_radio_off = 0;
478 sc->wlan_enable_if_radio_on = 0;
479 sc->wlan_disable_if_radio_off = 0;
480 sc->was_wlan_on_air = 0;
481 sc->was_bluetooth_on_air = 0;
482 sc->was_wwan_on_air = 0;
484 sc->cmi_order_size = -1;
486 memset(sc->cmi_order, 0, sizeof(sc->cmi_order));
487 acpi_sc = acpi_device_get_parent_softc(dev);
489 if (!(wmi_devclass = devclass_find ("acpi_wmi"))) {
490 device_printf(dev, "Couldn't find acpi_wmi devclass\n");
493 if (!(sc->wmi_dev = devclass_get_device(wmi_devclass, 0))) {
494 device_printf(dev, "Couldn't find acpi_wmi device\n");
497 if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
498 ACPI_HP_WMI_BIOS_GUID)) {
500 "WMI device does not provide the HP BIOS GUID\n");
503 if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
504 ACPI_HP_WMI_EVENT_GUID)) {
506 "HP event GUID detected, installing event handler\n");
507 if (ACPI_WMI_INSTALL_EVENT_HANDLER(sc->wmi_dev,
508 ACPI_HP_WMI_EVENT_GUID, acpi_hp_notify, dev)) {
510 "Could not install notification handler!\n");
517 ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_HP_WMI_CMI_GUID)
519 device_printf(dev, "HP CMI GUID detected\n");
523 sc->hpcmi_dev_t = make_dev(&hpcmi_ops, 0, UID_ROOT,
524 GID_WHEEL, 0644, "hpcmi");
525 sc->hpcmi_dev_t->si_drv1 = sc;
526 sc->hpcmi_open_pid = 0;
527 sc->hpcmi_bufptr = -1;
530 ACPI_SERIAL_BEGIN(hp);
532 sysctl_ctx_init(&sc->sysctl_ctx);
533 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
534 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
535 "hp", CTLFLAG_RD, 0, "");
537 for (int i = 0; acpi_hp_sysctls[i].name != NULL; ++i) {
539 if ((!sc->has_notify &&
540 (acpi_hp_sysctls[i].method ==
541 ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON ||
542 acpi_hp_sysctls[i].method ==
543 ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF ||
544 acpi_hp_sysctls[i].method ==
545 ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON ||
546 acpi_hp_sysctls[i].method ==
547 ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF ||
548 acpi_hp_sysctls[i].method ==
549 ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON ||
550 acpi_hp_sysctls[i].method ==
551 ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF)) ||
552 (arg = acpi_hp_sysctl_get(sc,
553 acpi_hp_sysctls[i].method)) < 0) {
556 if (acpi_hp_sysctls[i].method == ACPI_HP_METHOD_WLAN_ON_AIR) {
557 sc->was_wlan_on_air = arg;
559 else if (acpi_hp_sysctls[i].method ==
560 ACPI_HP_METHOD_BLUETOOTH_ON_AIR) {
561 sc->was_bluetooth_on_air = arg;
563 else if (acpi_hp_sysctls[i].method ==
564 ACPI_HP_METHOD_WWAN_ON_AIR) {
565 sc->was_wwan_on_air = arg;
568 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
569 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
570 acpi_hp_sysctls[i].name, acpi_hp_sysctls[i].access,
571 sc, i, acpi_hp_sysctl, "I",
572 acpi_hp_sysctls[i].description);
580 acpi_hp_detach(device_t dev)
584 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
585 struct acpi_hp_softc *sc = device_get_softc(dev);
586 if (sc->has_cmi && sc->hpcmi_open_pid != 0) {
590 if (sc->has_notify) {
591 ACPI_WMI_REMOVE_EVENT_HANDLER(dev,
592 ACPI_HP_WMI_EVENT_GUID);
594 if (sc->hpcmi_bufptr != -1) {
595 sbuf_delete(&sc->hpcmi_sbuf);
596 sc->hpcmi_bufptr = -1;
598 sc->hpcmi_open_pid = 0;
599 destroy_dev(sc->hpcmi_dev_t);
607 acpi_hp_sysctl(SYSCTL_HANDLER_ARGS)
609 struct acpi_hp_softc *sc;
616 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
618 sc = (struct acpi_hp_softc *)oidp->oid_arg1;
619 function = oidp->oid_arg2;
620 method = acpi_hp_sysctls[function].method;
622 ACPI_SERIAL_BEGIN(hp);
623 arg = acpi_hp_sysctl_get(sc, method);
625 error = sysctl_handle_int(oidp, &arg, 0, req);
626 if (!error && req->newptr != NULL) {
627 error = acpi_hp_sysctl_set(sc, method, arg, oldarg);
635 acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method)
639 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
640 ACPI_SERIAL_ASSERT(hp);
643 case ACPI_HP_METHOD_WLAN_ENABLED:
644 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
645 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
646 val = ((val & HP_MASK_WLAN_ENABLED) != 0);
648 case ACPI_HP_METHOD_WLAN_RADIO:
649 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
650 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
651 val = ((val & HP_MASK_WLAN_RADIO) != 0);
653 case ACPI_HP_METHOD_WLAN_ON_AIR:
654 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
655 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
656 val = ((val & HP_MASK_WLAN_ON_AIR) != 0);
658 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
659 val = sc->wlan_enable_if_radio_on;
661 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
662 val = sc->wlan_disable_if_radio_off;
664 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
665 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
666 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
667 val = ((val & HP_MASK_BLUETOOTH_ENABLED) != 0);
669 case ACPI_HP_METHOD_BLUETOOTH_RADIO:
670 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
671 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
672 val = ((val & HP_MASK_BLUETOOTH_RADIO) != 0);
674 case ACPI_HP_METHOD_BLUETOOTH_ON_AIR:
675 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
676 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
677 val = ((val & HP_MASK_BLUETOOTH_ON_AIR) != 0);
679 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
680 val = sc->bluetooth_enable_if_radio_on;
682 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
683 val = sc->bluetooth_disable_if_radio_off;
685 case ACPI_HP_METHOD_WWAN_ENABLED:
686 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
687 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
688 val = ((val & HP_MASK_WWAN_ENABLED) != 0);
690 case ACPI_HP_METHOD_WWAN_RADIO:
691 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
692 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
693 val = ((val & HP_MASK_WWAN_RADIO) != 0);
695 case ACPI_HP_METHOD_WWAN_ON_AIR:
696 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
697 ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
698 val = ((val & HP_MASK_WWAN_ON_AIR) != 0);
700 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
701 val = sc->wwan_enable_if_radio_on;
703 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
704 val = sc->wwan_disable_if_radio_off;
706 case ACPI_HP_METHOD_ALS:
707 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
708 ACPI_HP_WMI_ALS_COMMAND, 0, 0);
710 case ACPI_HP_METHOD_DISPLAY:
711 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
712 ACPI_HP_WMI_DISPLAY_COMMAND, 0, 0);
714 case ACPI_HP_METHOD_HDDTEMP:
715 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
716 ACPI_HP_WMI_HDDTEMP_COMMAND, 0, 0);
718 case ACPI_HP_METHOD_DOCK:
719 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
720 ACPI_HP_WMI_DOCK_COMMAND, 0, 0);
722 case ACPI_HP_METHOD_CMI_DETAIL:
723 val = sc->cmi_detail;
725 case ACPI_HP_METHOD_VERBOSE:
734 acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method, int arg, int oldarg)
736 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
737 ACPI_SERIAL_ASSERT(hp);
739 if (method != ACPI_HP_METHOD_CMI_DETAIL &&
740 method != ACPI_HP_METHOD_VERBOSE)
745 case ACPI_HP_METHOD_WLAN_ENABLED:
746 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
747 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
749 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
750 sc->wlan_enable_if_radio_on = arg;
751 acpi_hp_evaluate_auto_on_off(sc);
753 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
754 sc->wlan_disable_if_radio_off = arg;
755 acpi_hp_evaluate_auto_on_off(sc);
757 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
758 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
759 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
761 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
762 sc->bluetooth_enable_if_radio_on = arg;
763 acpi_hp_evaluate_auto_on_off(sc);
765 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
766 sc->bluetooth_disable_if_radio_off = arg?1:0;
767 acpi_hp_evaluate_auto_on_off(sc);
769 case ACPI_HP_METHOD_WWAN_ENABLED:
770 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
771 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
773 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
774 sc->wwan_enable_if_radio_on = arg?1:0;
775 acpi_hp_evaluate_auto_on_off(sc);
777 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
778 sc->wwan_disable_if_radio_off = arg?1:0;
779 acpi_hp_evaluate_auto_on_off(sc);
781 case ACPI_HP_METHOD_ALS:
782 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
783 ACPI_HP_WMI_ALS_COMMAND, 1,
785 case ACPI_HP_METHOD_CMI_DETAIL:
786 sc->cmi_detail = arg;
787 if ((arg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) !=
788 (oldarg & ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE)) {
789 sc->cmi_order_size = -1;
792 case ACPI_HP_METHOD_VERBOSE:
802 acpi_hp_free_buffer(ACPI_BUFFER* buf) {
803 if (buf && buf->Pointer) {
804 AcpiOsFree(buf->Pointer);
809 acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context)
811 device_t dev = context;
812 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
814 struct acpi_hp_softc *sc = device_get_softc(dev);
815 ACPI_BUFFER response = { ACPI_ALLOCATE_BUFFER, NULL };
817 ACPI_WMI_GET_EVENT_DATA(sc->wmi_dev, notify, &response);
818 obj = (ACPI_OBJECT*) response.Pointer;
819 if (obj && obj->Type == ACPI_TYPE_BUFFER && obj->Buffer.Length == 8) {
820 if (*((UINT8 *) obj->Buffer.Pointer) == 0x5) {
821 acpi_hp_evaluate_auto_on_off(sc);
824 acpi_hp_free_buffer(&response);
828 acpi_hp_exec_wmi_command(device_t wmi_dev, int command, int is_write, int val)
830 UINT32 params[5] = { 0x55434553,
837 ACPI_BUFFER in = { sizeof(params), ¶ms };
838 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
841 if (ACPI_FAILURE(ACPI_WMI_EVALUATE_CALL(wmi_dev, ACPI_HP_WMI_BIOS_GUID,
842 0, 0x3, &in, &out))) {
843 acpi_hp_free_buffer(&out);
847 if (!obj || obj->Type != ACPI_TYPE_BUFFER) {
848 acpi_hp_free_buffer(&out);
851 result = (UINT32*) obj->Buffer.Pointer;
856 acpi_hp_free_buffer(&out);
861 static __inline char*
862 acpi_hp_get_string_from_object(ACPI_OBJECT* obj, char* dst, size_t size) {
866 if (obj->Type == ACPI_TYPE_STRING) {
867 length = obj->String.Length+1;
871 strlcpy(dst, obj->String.Pointer, length);
872 acpi_hp_hex_decode(dst);
880 * Read BIOS Setting block in instance "instance".
881 * The block returned is ACPI_TYPE_PACKAGE which should contain the following
884 * 0 Setting Name [string]
885 * 1 Value (comma separated, asterisk marks the current value) [string]
886 * 2 Path within the bios hierarchy [string]
888 * 4 DisplayInUI [int]
889 * 5 RequiresPhysicalPresence [int]
890 * 6 Sequence for ordering within the bios settings (absolute) [int]
891 * 7 Length of prerequisites array [int]
892 * 8..8+[7] PrerequisiteN [string]
893 * 9+[7] Current value (in case of enum) [string] / Array length [int]
894 * 10+[7] Enum length [int] / Array values
895 * 11+[7]ff Enum value at index x [string]
898 acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid, UINT8 instance,
899 char* outbuf, size_t outsize, UINT32* sequence, int detail)
902 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
908 char string_buffer[size];
913 if (ACPI_FAILURE(ACPI_WMI_GET_BLOCK(wmi_dev, guid, instance, &out))) {
914 acpi_hp_free_buffer(&out);
918 if (!obj && obj->Type != ACPI_TYPE_PACKAGE) {
919 acpi_hp_free_buffer(&out);
923 if (obj->Package.Count >= 8 &&
924 obj->Package.Elements[7].Type == ACPI_TYPE_INTEGER) {
925 valuebase = 8 + obj->Package.Elements[7].Integer.Value;
928 /* check if this matches our expectations based on limited knowledge */
929 if (valuebase > 7 && obj->Package.Count > valuebase + 1 &&
930 obj->Package.Elements[0].Type == ACPI_TYPE_STRING &&
931 obj->Package.Elements[1].Type == ACPI_TYPE_STRING &&
932 obj->Package.Elements[2].Type == ACPI_TYPE_STRING &&
933 obj->Package.Elements[3].Type == ACPI_TYPE_INTEGER &&
934 obj->Package.Elements[4].Type == ACPI_TYPE_INTEGER &&
935 obj->Package.Elements[5].Type == ACPI_TYPE_INTEGER &&
936 obj->Package.Elements[6].Type == ACPI_TYPE_INTEGER &&
937 obj->Package.Elements[valuebase].Type == ACPI_TYPE_STRING &&
938 obj->Package.Elements[valuebase+1].Type == ACPI_TYPE_INTEGER &&
939 obj->Package.Count > valuebase +
940 obj->Package.Elements[valuebase+1].Integer.Value
942 enumbase = valuebase + 1;
943 if (detail & ACPI_HP_CMI_DETAIL_PATHS) {
944 strlcat(outbuf, acpi_hp_get_string_from_object(
945 &obj->Package.Elements[2], string_buffer, size),
948 while (strlen(outbuf) < outlen)
949 strlcat(outbuf, " ", outsize);
951 strlcat(outbuf, acpi_hp_get_string_from_object(
952 &obj->Package.Elements[0], string_buffer, size),
955 while (strlen(outbuf) < outlen)
956 strlcat(outbuf, " ", outsize);
957 strlcat(outbuf, acpi_hp_get_string_from_object(
958 &obj->Package.Elements[valuebase], string_buffer,
962 while (strlen(outbuf) < outlen)
963 strlcat(outbuf, " ", outsize);
964 for (i = 0; i < strlen(outbuf); ++i)
965 if (outbuf[i] == '\\')
967 if (detail & ACPI_HP_CMI_DETAIL_ENUMS) {
968 for (i = enumbase + 1; i < enumbase + 1 +
969 obj->Package.Elements[enumbase].Integer.Value;
971 acpi_hp_get_string_from_object(
972 &obj->Package.Elements[i], string_buffer,
974 if (strlen(string_buffer) > 1 ||
975 (strlen(string_buffer) == 1 &&
976 string_buffer[0] != ' ')) {
978 strlcat(outbuf, "/", outsize);
980 strlcat(outbuf, " (", outsize);
981 strlcat(outbuf, string_buffer, outsize);
987 strlcat(outbuf, ")", outsize);
988 if (detail & ACPI_HP_CMI_DETAIL_FLAGS) {
989 strlcat(outbuf, obj->Package.Elements[3].Integer.Value?
990 " [ReadOnly]":"", outsize);
991 strlcat(outbuf, obj->Package.Elements[4].Integer.Value?
992 "":" [NOUI]", outsize);
993 strlcat(outbuf, obj->Package.Elements[5].Integer.Value?
994 " [RPP]":"", outsize);
996 *sequence = (UINT32) obj->Package.Elements[6].Integer.Value;
998 acpi_hp_free_buffer(&out);
1006 * Convert given two digit hex string (hexin) to an UINT8 referenced
1008 * Return != 0 if the was a problem (invalid input)
1010 static __inline int acpi_hp_hex_to_int(const UINT8 *hexin, UINT8 *byteout)
1017 if ('0' <= hi && hi <= '9')
1019 else if ('A' <= hi && hi <= 'F')
1021 else if ('a' <= hi && hi <= 'f')
1025 if ('0' <= lo && lo <= '9')
1027 else if ('A' <= lo && lo <= 'F')
1029 else if ('a' <= lo && lo <= 'f')
1033 *byteout = (hi << 4) + lo;
1040 acpi_hp_hex_decode(char* buffer)
1043 int length = strlen(buffer);
1047 if (((int)length/2)*2 == length || length < 10) return;
1049 for (i = 0; i<length; ++i) {
1051 if (buffer[i] != ' ')
1055 if (!((buffer[i] >= '0' && buffer[i] <= '9') ||
1056 (buffer[i] >= 'A' && buffer[i] <= 'F')))
1060 for (i = 0; i<length; i += 3) {
1063 acpi_hp_hex_to_int(uin, &uout);
1064 buffer[i/3] = (char) uout;
1066 buffer[(length+1)/3] = 0;
1074 acpi_hp_hpcmi_open(struct dev_open_args *ap)
1076 struct acpi_hp_softc *sc;
1078 struct cdev *dev = ap->a_head.a_dev;
1079 struct thread *td = curthread;
1081 if (dev == NULL || dev->si_drv1 == NULL)
1085 ACPI_SERIAL_BEGIN(hp);
1086 if (sc->hpcmi_open_pid != 0) {
1090 if (sbuf_new(&sc->hpcmi_sbuf, NULL, 4096, SBUF_AUTOEXTEND)
1094 sc->hpcmi_open_pid = td->td_proc->p_pid;
1095 sc->hpcmi_bufptr = 0;
1099 ACPI_SERIAL_END(hp);
1105 * close hpcmi device
1108 acpi_hp_hpcmi_close(struct dev_close_args *ap)
1110 struct acpi_hp_softc *sc;
1112 struct cdev *dev = ap->a_head.a_dev;
1114 if (dev == NULL || dev->si_drv1 == NULL)
1118 ACPI_SERIAL_BEGIN(hp);
1119 if (sc->hpcmi_open_pid == 0) {
1123 if (sc->hpcmi_bufptr != -1) {
1124 sbuf_delete(&sc->hpcmi_sbuf);
1125 sc->hpcmi_bufptr = -1;
1127 sc->hpcmi_open_pid = 0;
1130 ACPI_SERIAL_END(hp);
1136 * Read from hpcmi bios information
1139 acpi_hp_hpcmi_read(struct dev_read_args *ap)
1141 struct acpi_hp_softc *sc;
1146 int linesize = 1025;
1147 char line[linesize];
1148 struct cdev *dev = ap->a_head.a_dev;
1149 struct uio *buf = ap->a_uio;
1151 if (dev == NULL || dev->si_drv1 == NULL)
1155 ACPI_SERIAL_BEGIN(hp);
1156 if (sc->hpcmi_open_pid != buf->uio_td->td_proc->p_pid
1157 || sc->hpcmi_bufptr == -1) {
1161 if (!sbuf_done(&sc->hpcmi_sbuf)) {
1162 if (sc->cmi_order_size < 0) {
1163 maxInstance = sc->has_cmi;
1164 if (!(sc->cmi_detail &
1165 ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE) &&
1169 sc->cmi_order_size = 0;
1170 for (instance = 0; instance < maxInstance;
1172 if (acpi_hp_get_cmi_block(sc->wmi_dev,
1173 ACPI_HP_WMI_CMI_GUID, instance,
1174 line, linesize, &sequence,
1176 instance = maxInstance;
1179 pos = sc->cmi_order_size;
1181 i<sc->cmi_order_size && i<127;
1183 if (sc->cmi_order[i].sequence > sequence) {
1188 for (i=sc->cmi_order_size;
1191 sc->cmi_order[i].sequence =
1192 sc->cmi_order[i-1].sequence;
1193 sc->cmi_order[i].instance =
1194 sc->cmi_order[i-1].instance;
1196 sc->cmi_order[pos].sequence =
1198 sc->cmi_order[pos].instance =
1200 sc->cmi_order_size++;
1204 for (i=0; i<sc->cmi_order_size; ++i) {
1205 if (!acpi_hp_get_cmi_block(sc->wmi_dev,
1206 ACPI_HP_WMI_CMI_GUID,
1207 sc->cmi_order[i].instance, line, linesize,
1208 &sequence, sc->cmi_detail)) {
1209 sbuf_printf(&sc->hpcmi_sbuf, "%s\n", line);
1212 sbuf_finish(&sc->hpcmi_sbuf);
1214 if (sbuf_len(&sc->hpcmi_sbuf) <= 0) {
1215 sbuf_delete(&sc->hpcmi_sbuf);
1216 sc->hpcmi_bufptr = -1;
1217 sc->hpcmi_open_pid = 0;
1220 l = min(buf->uio_resid, sbuf_len(&sc->hpcmi_sbuf) -
1222 ret = (l > 0)?uiomove(sbuf_data(&sc->hpcmi_sbuf) +
1223 sc->hpcmi_bufptr, l, buf) : 0;
1224 sc->hpcmi_bufptr += l;
1227 ACPI_SERIAL_END(hp);