Deleted Added
sdiff udiff text old ( 195185 ) new ( 195325 )
full compact
1/*-
2 * Copyright (c) 2009 Michael Gmelin <freebsd@grem.de>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/acpi_support/acpi_hp.c 195185 2009-06-30 09:51:41Z rpaulo $");
28__FBSDID("$FreeBSD: head/sys/dev/acpi_support/acpi_hp.c 195325 2009-07-03 21:12:37Z rpaulo $");
29
30/*
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.
37 *
38 * HP CMI whitepaper:
39 * http://h20331.www2.hp.com/Hpsub/downloads/cmi_whitepaper.pdf
40 * wmi-hp for Linux:
41 * http://www.kernel.org
42 * WMI and ACPI:
43 * http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
44 */
45
46#include "opt_acpi.h"
47#include <sys/param.h>
48#include <sys/conf.h>
49#include <sys/uio.h>
50#include <sys/proc.h>
51#include <sys/kernel.h>
52#include <sys/bus.h>
53#include <sys/sbuf.h>
54#include <sys/module.h>
55#include <sys/sysctl.h>
56
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"
61
62#define _COMPONENT ACPI_OEM
63ACPI_MODULE_NAME("HP")
64
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"
68
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
74
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
96
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
106
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
111
112struct acpi_hp_inst_seq_pair {
113 UINT32 sequence; /* sequence number as suggested by cmi bios */
114 UINT8 instance; /* object instance on guid */
115};
116
117struct acpi_hp_softc {
118 device_t dev;
119 ACPI_HANDLE handle;
120 device_t wmi_dev;
121 int has_notify; /* notification GUID found */
122 int has_cmi; /* CMI GUID found */
123 int cmi_detail; /* CMI detail level
124 (set by sysctl) */
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
133 on air status */
134 int was_bluetooth_on_air; /* last known BT
135 on air status */
136 int was_wwan_on_air; /* last known WWAN
137 on air status */
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
143 /dev/hpcmi */
144 int hpcmi_bufptr; /* current pointer position
145 in /dev/hpcmi output buffer
146 */
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 */
150};
151
152static struct {
153 char *name;
154 int method;
155 char *description;
156 int access;
157} acpi_hp_sysctls[] = {
158 {
159 .name = "wlan_enabled",
160 .method = ACPI_HP_METHOD_WLAN_ENABLED,
161 .description = "Enable/Disable WLAN (WiFi)",
162 .access = CTLTYPE_INT | CTLFLAG_RW
163 },
164 {
165 .name = "wlan_radio",
166 .method = ACPI_HP_METHOD_WLAN_RADIO,
167 .description = "WLAN radio status",
168 .access = CTLTYPE_INT | CTLFLAG_RD
169 },
170 {
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
175 },
176 {
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
181 },
182 {
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
187 },
188 {
189 .name = "bt_enabled",
190 .method = ACPI_HP_METHOD_BLUETOOTH_ENABLED,
191 .description = "Enable/Disable Bluetooth",
192 .access = CTLTYPE_INT | CTLFLAG_RW
193 },
194 {
195 .name = "bt_radio",
196 .method = ACPI_HP_METHOD_BLUETOOTH_RADIO,
197 .description = "Bluetooth radio status",
198 .access = CTLTYPE_INT | CTLFLAG_RD
199 },
200 {
201 .name = "bt_on_air",
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
206 },
207 {
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
212 },
213 {
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
218 },
219 {
220 .name = "wwan_enabled",
221 .method = ACPI_HP_METHOD_WWAN_ENABLED,
222 .description = "Enable/Disable WWAN (UMTS)",
223 .access = CTLTYPE_INT | CTLFLAG_RW
224 },
225 {
226 .name = "wwan_radio",
227 .method = ACPI_HP_METHOD_WWAN_RADIO,
228 .description = "WWAN radio status",
229 .access = CTLTYPE_INT | CTLFLAG_RD
230 },
231 {
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
236 },
237 {
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
242 },
243 {
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
248 },
249 {
250 .name = "als_enabled",
251 .method = ACPI_HP_METHOD_ALS,
252 .description = "Enable/Disable ALS (Ambient light sensor)",
253 .access = CTLTYPE_INT | CTLFLAG_RW
254 },
255 {
256 .name = "display",
257 .method = ACPI_HP_METHOD_DISPLAY,
258 .description = "Display status",
259 .access = CTLTYPE_INT | CTLFLAG_RD
260 },
261 {
262 .name = "hdd_temperature",
263 .method = ACPI_HP_METHOD_HDDTEMP,
264 .description = "HDD temperature",
265 .access = CTLTYPE_INT | CTLFLAG_RD
266 },
267 {
268 .name = "is_docked",
269 .method = ACPI_HP_METHOD_DOCK,
270 .description = "Docking station status",
271 .access = CTLTYPE_INT | CTLFLAG_RD
272 },
273 {
274 .name = "cmi_detail",
275 .method = ACPI_HP_METHOD_CMI_DETAIL,
276 .description = "Details shown in CMI output "
277 "(cat /dev/hpcmi)",
278 .access = CTLTYPE_INT | CTLFLAG_RW
279 },
280 {
281 .name = "verbose",
282 .method = ACPI_HP_METHOD_VERBOSE,
283 .description = "Verbosity level",
284 .access = CTLTYPE_INT | CTLFLAG_RW
285 },
286
287 { NULL, 0, NULL, 0 }
288};
289
290ACPI_SERIAL_DECL(hp, "HP ACPI-WMI Mapping");
291
292static int acpi_hp_probe(device_t dev);
293static int acpi_hp_attach(device_t dev);
294static int acpi_hp_detach(device_t dev);
295
296static void acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc* sc);
297static int acpi_hp_sysctl(SYSCTL_HANDLER_ARGS);
298static int acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method,
299 int arg, int oldarg);
300static int acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method);
301static int acpi_hp_exec_wmi_command(device_t wmi_dev, int command,
302 int is_write, int val);
303static void acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context);
304static 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);
307static void acpi_hp_hex_decode(char* buffer);
308
309static d_open_t acpi_hp_hpcmi_open;
310static d_close_t acpi_hp_hpcmi_close;
311static d_read_t acpi_hp_hpcmi_read;
312
313/* handler /dev/hpcmi device */
314static 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,
319 .d_name = "hpcmi",
320};
321
322static 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),
326 {0, 0}
327};
328
329static driver_t acpi_hp_driver = {
330 "acpi_hp",
331 acpi_hp_methods,
332 sizeof(struct acpi_hp_softc),
333};
334
335static devclass_t acpi_hp_devclass;
336
337DRIVER_MODULE(acpi_hp, acpi, acpi_hp_driver, acpi_hp_devclass,
338 0, 0);
339MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1);
340MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1);
341
342static void
343acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc)
344{
337 int wireless;
338 int new_wlan_status;
339 int new_bluetooth_status;
340 int new_wwan_status;
345 int wireless;
346 int new_wlan_status;
347 int new_bluetooth_status;
348 int new_wwan_status;
349
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;
355
348 device_printf(sc->wmi_dev, "Wireless status is %x\n", wireless);
356 if (sc->verbose)
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);
362 new_wlan_status = 0;
363 }
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);
368 new_wlan_status = 1;
369 }
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;
376 }
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;
383 }
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);
389 new_wwan_status = 0;
390 }
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);
396 new_wwan_status = 1;
397 }
398
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;
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);
403 if (sc->verbose)
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);
410 }
411 }
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?
416 0:1;
407 device_printf(sc->wmi_dev, "BLUETOOTH on air changed"
408 " to %i (new_bluetooth_status is %i)\n",
409 sc->was_bluetooth_on_air, new_bluetooth_status);
417 if (sc->verbose)
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);
425 }
426 }
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;
418 device_printf(sc->wmi_dev, "WWAN on air changed to %i"
419 " (new_wwan_status is %i)\n",
420 sc->was_wwan_on_air, new_wwan_status);
431 if (sc->verbose)
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);
438 }
439 }
440}
441
442static int
443acpi_hp_probe(device_t dev)
444{
445 if (acpi_disabled("hp") || device_get_unit(dev) != 0)
446 return (ENXIO);
447 device_set_desc(dev, "HP ACPI-WMI Mapping");
448
449 return (0);
450}
451
452static int
453acpi_hp_attach(device_t dev)
454{
455 struct acpi_hp_softc *sc;
456 struct acpi_softc *acpi_sc;
457 devclass_t wmi_devclass;
443 int arg;
458 int arg;
459
460 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
461
462 sc = device_get_softc(dev);
463 sc->dev = dev;
464 sc->handle = acpi_get_handle(dev);
465 sc->has_notify = 0;
466 sc->has_cmi = 0;
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;
476 sc->cmi_detail = 0;
477 sc->cmi_order_size = -1;
478 sc->verbose = 0;
479 memset(sc->cmi_order, 0, sizeof(sc->cmi_order));
480 acpi_sc = acpi_device_get_parent_softc(dev);
481
482 if (!(wmi_devclass = devclass_find ("acpi_wmi"))) {
483 device_printf(dev, "Couldn't find acpi_wmi devclass\n");
484 return (EINVAL);
485 }
486 if (!(sc->wmi_dev = devclass_get_device(wmi_devclass, 0))) {
487 device_printf(dev, "Couldn't find acpi_wmi device\n");
488 return (EINVAL);
489 }
490 if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
491 ACPI_HP_WMI_BIOS_GUID)) {
492 device_printf(dev,
493 "WMI device does not provide the HP BIOS GUID\n");
494 return (EINVAL);
495 }
496 if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
497 ACPI_HP_WMI_EVENT_GUID)) {
498 device_printf(dev,
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)) {
502 device_printf(dev,
503 "Could not install notification handler!\n");
504 }
505 else {
506 sc->has_notify = 1;
507 }
508 }
509 if ((sc->has_cmi =
510 ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_HP_WMI_CMI_GUID)
511 )) {
512 device_printf(dev, "HP CMI GUID detected\n");
513 }
514
515 if (sc->has_cmi) {
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;
521 }
522
523 ACPI_SERIAL_BEGIN(hp);
524
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) {
528 arg = 0;
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) {
544 continue;
545 }
546 if (acpi_hp_sysctls[i].method == ACPI_HP_METHOD_WLAN_ON_AIR) {
547 sc->was_wlan_on_air = arg;
548 }
549 else if (acpi_hp_sysctls[i].method ==
550 ACPI_HP_METHOD_BLUETOOTH_ON_AIR) {
551 sc->was_bluetooth_on_air = arg;
552 }
553 else if (acpi_hp_sysctls[i].method ==
554 ACPI_HP_METHOD_WWAN_ON_AIR) {
555 sc->was_wwan_on_air = arg;
556 }
557
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);
563 }
564 ACPI_SERIAL_END(hp);
565
566 return (0);
567}
568
569static int
570acpi_hp_detach(device_t dev)
571{
556 int ret;
572 int ret;
573
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) {
577 ret = EBUSY;
578 }
579 else {
580 if (sc->has_notify) {
581 ACPI_WMI_REMOVE_EVENT_HANDLER(dev,
582 ACPI_HP_WMI_EVENT_GUID);
583 }
584 if (sc->hpcmi_bufptr != -1) {
585 sbuf_delete(&sc->hpcmi_sbuf);
586 sc->hpcmi_bufptr = -1;
587 }
588 sc->hpcmi_open_pid = 0;
589 destroy_dev(sc->hpcmi_dev_t);
590 ret = 0;
591 }
592
593 return (ret);
594}
595
596static int
597acpi_hp_sysctl(SYSCTL_HANDLER_ARGS)
598{
583 struct acpi_hp_softc *sc;
584 int arg;
585 int oldarg;
586 int error = 0;
587 int function;
588 int method;
599 struct acpi_hp_softc *sc;
600 int arg;
601 int oldarg;
602 int error = 0;
603 int function;
604 int method;
605
606 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
607
608 sc = (struct acpi_hp_softc *)oidp->oid_arg1;
609 function = oidp->oid_arg2;
610 method = acpi_hp_sysctls[function].method;
611
612 ACPI_SERIAL_BEGIN(hp);
613 arg = acpi_hp_sysctl_get(sc, method);
614 oldarg = arg;
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);
618 }
619 ACPI_SERIAL_END(hp);
620
621 return (error);
622}
623
624static int
625acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method)
626{
611 int val = 0;
627 int val = 0;
628
629 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
630 ACPI_SERIAL_ASSERT(hp);
631
632 switch (method) {
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);
637 break;
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);
642 break;
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);
647 break;
648 case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
649 val = sc->wlan_enable_if_radio_on;
650 break;
651 case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
652 val = sc->wlan_disable_if_radio_off;
653 break;
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);
658 break;
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);
663 break;
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);
668 break;
669 case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
670 val = sc->bluetooth_enable_if_radio_on;
671 break;
672 case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
673 val = sc->bluetooth_disable_if_radio_off;
674 break;
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);
679 break;
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);
684 break;
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);
689 break;
690 case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
691 val = sc->wwan_enable_if_radio_on;
692 break;
693 case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
694 val = sc->wwan_disable_if_radio_off;
695 break;
696 case ACPI_HP_METHOD_ALS:
697 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
698 ACPI_HP_WMI_ALS_COMMAND, 0, 0);
699 break;
700 case ACPI_HP_METHOD_DISPLAY:
701 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
702 ACPI_HP_WMI_DISPLAY_COMMAND, 0, 0);
703 break;
704 case ACPI_HP_METHOD_HDDTEMP:
705 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
706 ACPI_HP_WMI_HDDTEMP_COMMAND, 0, 0);
707 break;
708 case ACPI_HP_METHOD_DOCK:
709 val = acpi_hp_exec_wmi_command(sc->wmi_dev,
710 ACPI_HP_WMI_DOCK_COMMAND, 0, 0);
711 break;
712 case ACPI_HP_METHOD_CMI_DETAIL:
713 val = sc->cmi_detail;
714 break;
715 case ACPI_HP_METHOD_VERBOSE:
716 val = sc->verbose;
717 break;
718 }
719
720 return (val);
721}
722
723static int
724acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method, int arg, int oldarg)
725{
726 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
727 ACPI_SERIAL_ASSERT(hp);
728
710 if (method != ACPI_HP_METHOD_CMI_DETAIL)
729 if (method != ACPI_HP_METHOD_CMI_DETAIL &&
730 method != ACPI_HP_METHOD_VERBOSE)
731 arg = arg?1:0;
732
733 if (arg != oldarg) {
734 switch (method) {
735 case ACPI_HP_METHOD_WLAN_ENABLED:
736 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
737 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
738 arg?0x101:0x100));
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);
742 break;
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);
746 break;
747 case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
748 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
749 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
750 arg?0x202:0x200));
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);
754 break;
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);
758 break;
759 case ACPI_HP_METHOD_WWAN_ENABLED:
760 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
761 ACPI_HP_WMI_WIRELESS_COMMAND, 1,
762 arg?0x404:0x400));
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);
766 break;
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);
770 break;
771 case ACPI_HP_METHOD_ALS:
772 return (acpi_hp_exec_wmi_command(sc->wmi_dev,
773 ACPI_HP_WMI_ALS_COMMAND, 1,
774 arg?1:0));
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;
780 }
781 break;
782 case ACPI_HP_METHOD_VERBOSE:
783 sc->verbose = arg;
784 break;
785 }
786 }
787
788 return (0);
789}
790
791static __inline void
792acpi_hp_free_buffer(ACPI_BUFFER* buf) {
793 if (buf && buf->Pointer) {
794 AcpiOsFree(buf->Pointer);
795 }
796}
797
798static void
799acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context)
800{
801 device_t dev = context;
802 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
803
804 struct acpi_hp_softc *sc = device_get_softc(dev);
805 ACPI_BUFFER response = { ACPI_ALLOCATE_BUFFER, NULL };
806 ACPI_OBJECT *obj;
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);
812 }
813 }
814 acpi_hp_free_buffer(&response);
815}
816
817static int
818acpi_hp_exec_wmi_command(device_t wmi_dev, int command, int is_write, int val)
819{
797 UINT32 params[5] = { 0x55434553,
798 is_write?2:1,
799 command,
800 is_write?4:0,
801 val};
802 UINT32* result;
803 ACPI_OBJECT *obj;
804 ACPI_BUFFER in = { sizeof(params), &params };
805 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
820 UINT32 params[5] = { 0x55434553,
821 is_write?2:1,
822 command,
823 is_write?4:0,
824 val};
825 UINT32* result;
826 ACPI_OBJECT *obj;
827 ACPI_BUFFER in = { sizeof(params), &params };
828 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
829 int retval;
830
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);
834 return (-EINVAL);
835 }
836 obj = out.Pointer;
837 if (!obj || obj->Type != ACPI_TYPE_BUFFER) {
838 acpi_hp_free_buffer(&out);
839 return (-EINVAL);
840 }
841 result = (UINT32*) obj->Buffer.Pointer;
842 retval = result[2];
843 if (result[1] > 0) {
844 retval = result[1];
845 }
846 acpi_hp_free_buffer(&out);
847
848 return (retval);
849}
850
851static __inline char*
852acpi_hp_get_string_from_object(ACPI_OBJECT* obj, char* dst, size_t size) {
830 int length;
853 int length;
854
855 dst[0] = 0;
856 if (obj->Type == ACPI_TYPE_STRING) {
857 length = obj->String.Length+1;
858 if (length > size) {
859 length = size - 1;
860 }
861 strlcpy(dst, obj->String.Pointer, length);
862 acpi_hp_hex_decode(dst);
863 }
864
865 return (dst);
866}
867
868
869/*
870 * Read BIOS Setting block in instance "instance".
871 * The block returned is ACPI_TYPE_PACKAGE which should contain the following
872 * elements:
873 * Index Meaning
850 * 0 Setting Name [string]
851 * 1 Value (comma separated, asterisk marks the current value) [string]
852 * 2 Path within the bios hierarchy [string]
853 * 3 IsReadOnly [int]
854 * 4 DisplayInUI [int]
855 * 5 RequiresPhysicalPresence [int]
856 * 6 Sequence for ordering within the bios settings (absolute) [int]
857 * 7 Length of prerequisites array [int]
858 * 8 Prerequisite1 [string]
859 * 9 Prerequisite2 [string]
860 * 10 Prerequisite3 [string]
861 * 11 Current value (in case of enum) [string] / Array length [int]
862 * 12 Enum length [int] / Array values
863 * 13ff Enum value at index x [string]
874 * 0 Setting Name [string]
875 * 1 Value (comma separated, asterisk marks the current value) [string]
876 * 2 Path within the bios hierarchy [string]
877 * 3 IsReadOnly [int]
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]
886 */
887static int
888acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid, UINT8 instance,
889 char* outbuf, size_t outsize, UINT32* sequence, int detail)
890{
869 ACPI_OBJECT *obj;
870 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
871 int i;
872 int outlen;
873 int size = 255;
874 int has_enums = 0;
875 char string_buffer[size];
876 int enumbase;
891 ACPI_OBJECT *obj;
892 ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
893 int i;
894 int outlen;
895 int size = 255;
896 int has_enums = 0;
897 int valuebase = 0;
898 char string_buffer[size];
899 int enumbase;
900
901 outlen = 0;
902 outbuf[0] = 0;
903 if (ACPI_FAILURE(ACPI_WMI_GET_BLOCK(wmi_dev, guid, instance, &out))) {
904 acpi_hp_free_buffer(&out);
905 return (-EINVAL);
906 }
907 obj = out.Pointer;
908 if (!obj && obj->Type != ACPI_TYPE_PACKAGE) {
909 acpi_hp_free_buffer(&out);
910 return (-EINVAL);
911 }
912
913 if (obj->Package.Count >= 8 &&
914 obj->Package.Elements[7].Type == ACPI_TYPE_INTEGER) {
915 valuebase = 8 + obj->Package.Elements[7].Integer.Value;
916 }
917
918 /* check if this matches our expectations based on limited knowledge */
891 if (obj->Package.Count >= 13 &&
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 &&
899 obj->Package.Elements[7].Type == ACPI_TYPE_INTEGER &&
900 obj->Package.Elements[8].Type == ACPI_TYPE_STRING &&
901 obj->Package.Elements[9].Type == ACPI_TYPE_STRING &&
902 obj->Package.Elements[10].Type == ACPI_TYPE_STRING &&
903 ((obj->Package.Elements[11].Type == ACPI_TYPE_STRING &&
904 obj->Package.Elements[12].Type == ACPI_TYPE_INTEGER &&
905 obj->Package.Count >=
906 13+obj->Package.Elements[12].Integer.Value) ||
907 (obj->Package.Elements[11].Type == ACPI_TYPE_INTEGER &&
908 obj->Package.Count >=
909 12+obj->Package.Elements[11].Integer.Value))
910 ) {
911 enumbase = obj->Package.Elements[11].Type == ACPI_TYPE_STRING?
912 12:11;
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
931 ) {
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),
936 outsize);
937 outlen += 48;
938 while (strlen(outbuf) < outlen)
939 strlcat(outbuf, " ", outsize);
940 }
941 strlcat(outbuf, acpi_hp_get_string_from_object(
942 &obj->Package.Elements[0], string_buffer, size),
943 outsize);
944 outlen += 43;
945 while (strlen(outbuf) < outlen)
946 strlcat(outbuf, " ", outsize);
927 if (enumbase == 12)
928 strlcat(outbuf, acpi_hp_get_string_from_object(
929 &obj->Package.Elements[11],
930 string_buffer, size),
931 outsize);
947 strlcat(outbuf, acpi_hp_get_string_from_object(
948 &obj->Package.Elements[valuebase], string_buffer,
949 size),
950 outsize);
951 outlen += 21;
952 while (strlen(outbuf) < outlen)
953 strlcat(outbuf, " ", outsize);
954 for (i = 0; i < strlen(outbuf); ++i)
955 if (outbuf[i] == '\\')
956 outbuf[i] = '/';
957 if (detail & ACPI_HP_CMI_DETAIL_ENUMS) {
939 for (i = enumbase+1; i < enumbase + 1 +
958 for (i = enumbase + 1; i < enumbase + 1 +
959 obj->Package.Elements[enumbase].Integer.Value;
960 ++i) {
961 acpi_hp_get_string_from_object(
962 &obj->Package.Elements[i], string_buffer,
963 size);
964 if (strlen(string_buffer) > 1 ||
965 (strlen(string_buffer) == 1 &&
966 string_buffer[0] != ' ')) {
967 if (has_enums)
968 strlcat(outbuf, "/", outsize);
969 else
970 strlcat(outbuf, " (", outsize);
971 strlcat(outbuf, string_buffer, outsize);
972 has_enums = 1;
973 }
974 }
975 }
976 if (has_enums)
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);
985 }
986 *sequence = (UINT32) obj->Package.Elements[6].Integer.Value;
987 }
988 acpi_hp_free_buffer(&out);
989
990 return (0);
991}
992
993
994
995/*
996 * Convert given two digit hex string (hexin) to an UINT8 referenced
997 * by byteout.
998 * Return != 0 if the was a problem (invalid input)
999 */
1000static __inline int acpi_hp_hex_to_int(const UINT8 *hexin, UINT8 *byteout)
1001{
983 unsigned int hi;
984 unsigned int lo;
1002 unsigned int hi;
1003 unsigned int lo;
1004
1005 hi = hexin[0];
1006 lo = hexin[1];
1007 if ('0' <= hi && hi <= '9')
1008 hi -= '0';
1009 else if ('A' <= hi && hi <= 'F')
1010 hi -= ('A' - 10);
1011 else if ('a' <= hi && hi <= 'f')
1012 hi -= ('a' - 10);
1013 else
1014 return (1);
1015 if ('0' <= lo && lo <= '9')
1016 lo -= '0';
1017 else if ('A' <= lo && lo <= 'F')
1018 lo -= ('A' - 10);
1019 else if ('a' <= lo && lo <= 'f')
1020 lo -= ('a' - 10);
1021 else
1022 return (1);
1023 *byteout = (hi << 4) + lo;
1024
1025 return (0);
1026}
1027
1028
1029static void
1030acpi_hp_hex_decode(char* buffer)
1031{
1013 int i;
1014 int length = strlen(buffer);
1015 UINT8 *uin;
1016 UINT8 uout;
1032 int i;
1033 int length = strlen(buffer);
1034 UINT8 *uin;
1035 UINT8 uout;
1036
1037 if (((int)length/2)*2 == length || length < 10) return;
1038
1039 for (i = 0; i<length; ++i) {
1040 if (!((i+1)%3)) {
1041 if (buffer[i] != ' ')
1042 return;
1043 }
1044 else
1045 if (!((buffer[i] >= '0' && buffer[i] <= '9') ||
1046 (buffer[i] >= 'A' && buffer[i] <= 'F')))
1047 return;
1048 }
1049
1050 for (i = 0; i<length; i += 3) {
1051 uin = &buffer[i];
1052 uout = 0;
1053 acpi_hp_hex_to_int(uin, &uout);
1054 buffer[i/3] = (char) uout;
1055 }
1056 buffer[(length+1)/3] = 0;
1057}
1058
1059
1060/*
1061 * open hpcmi device
1062 */
1063static int
1064acpi_hp_hpcmi_open(struct cdev* dev, int flags, int mode, struct thread *td)
1065{
1047 struct acpi_hp_softc *sc;
1048 int ret;
1066 struct acpi_hp_softc *sc;
1067 int ret;
1068
1069 if (dev == NULL || dev->si_drv1 == NULL)
1070 return (EBADF);
1071 sc = dev->si_drv1;
1072
1073 ACPI_SERIAL_BEGIN(hp);
1074 if (sc->hpcmi_open_pid != 0) {
1075 ret = EBUSY;
1076 }
1077 else {
1078 if (sbuf_new(&sc->hpcmi_sbuf, NULL, 4096, SBUF_AUTOEXTEND)
1079 == NULL) {
1080 ret = ENXIO;
1081 } else {
1082 sc->hpcmi_open_pid = td->td_proc->p_pid;
1083 sc->hpcmi_bufptr = 0;
1084 ret = 0;
1085 }
1086 }
1087 ACPI_SERIAL_END(hp);
1088
1089 return (ret);
1090}
1091
1092/*
1093 * close hpcmi device
1094 */
1095static int
1096acpi_hp_hpcmi_close(struct cdev* dev, int flags, int mode, struct thread *td)
1097{
1079 struct acpi_hp_softc *sc;
1080 int ret;
1098 struct acpi_hp_softc *sc;
1099 int ret;
1100
1101 if (dev == NULL || dev->si_drv1 == NULL)
1102 return (EBADF);
1103 sc = dev->si_drv1;
1104
1105 ACPI_SERIAL_BEGIN(hp);
1106 if (sc->hpcmi_open_pid == 0) {
1107 ret = EBADF;
1108 }
1109 else {
1110 if (sc->hpcmi_bufptr != -1) {
1111 sbuf_delete(&sc->hpcmi_sbuf);
1112 sc->hpcmi_bufptr = -1;
1113 }
1114 sc->hpcmi_open_pid = 0;
1115 ret = 0;
1116 }
1117 ACPI_SERIAL_END(hp);
1118
1119 return (ret);
1120}
1121
1122/*
1123 * Read from hpcmi bios information
1124 */
1125static int
1126acpi_hp_hpcmi_read(struct cdev *dev, struct uio *buf, int flag)
1127{
1109 struct acpi_hp_softc *sc;
1110 int pos, i, l, ret;
1111 UINT8 instance;
1112 UINT8 maxInstance;
1113 UINT32 sequence;
1114 int linesize = 1025;
1115 char line[linesize];
1128 struct acpi_hp_softc *sc;
1129 int pos, i, l, ret;
1130 UINT8 instance;
1131 UINT8 maxInstance;
1132 UINT32 sequence;
1133 int linesize = 1025;
1134 char line[linesize];
1135
1136 if (dev == NULL || dev->si_drv1 == NULL)
1137 return (EBADF);
1138 sc = dev->si_drv1;
1139
1140 ACPI_SERIAL_BEGIN(hp);
1141 if (sc->hpcmi_open_pid != buf->uio_td->td_proc->p_pid
1142 || sc->hpcmi_bufptr == -1) {
1143 ret = EBADF;
1144 }
1145 else {
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) &&
1151 maxInstance > 0) {
1152 maxInstance--;
1153 }
1154 sc->cmi_order_size = 0;
1155 for (instance = 0; instance < maxInstance;
1156 ++instance) {
1157 if (acpi_hp_get_cmi_block(sc->wmi_dev,
1158 ACPI_HP_WMI_CMI_GUID, instance,
1159 line, linesize, &sequence,
1160 sc->cmi_detail)) {
1161 instance = maxInstance;
1162 }
1163 else {
1164 pos = sc->cmi_order_size;
1165 for (i=0;
1166 i<sc->cmi_order_size && i<127;
1167 ++i) {
1168 if (sc->cmi_order[i].sequence > sequence) {
1169 pos = i;
1170 break;
1171 }
1172 }
1173 for (i=sc->cmi_order_size;
1174 i>pos;
1175 --i) {
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;
1180 }
1181 sc->cmi_order[pos].sequence =
1182 sequence;
1183 sc->cmi_order[pos].instance =
1184 instance;
1185 sc->cmi_order_size++;
1186 }
1187 }
1188 }
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);
1195 }
1196 }
1197 sbuf_finish(&sc->hpcmi_sbuf);
1198 }
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;
1203 ret = ENOMEM;
1204 } else {
1205 l = min(buf->uio_resid, sbuf_len(&sc->hpcmi_sbuf) -
1206 sc->hpcmi_bufptr);
1207 ret = (l > 0)?uiomove(sbuf_data(&sc->hpcmi_sbuf) +
1208 sc->hpcmi_bufptr, l, buf) : 0;
1209 sc->hpcmi_bufptr += l;
1210 }
1211 }
1212 ACPI_SERIAL_END(hp);
1213
1214 return (ret);
1215}