2 * Copyright (c) 2003 OGAWA Takaya <t-ogawa@triaez.kaisei.org>
3 * Copyright (c) 2004 TAKAHASHI Yoshihiro <nyan@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/acpi_support/acpi_panasonic.c,v 1.15 2009/06/05 18:44:36 jkim
31 #include <sys/param.h>
32 #include <sys/kernel.h>
33 #include <sys/malloc.h>
34 #include <sys/module.h>
36 #include <sys/power.h>
40 #include <dev/acpica5/acpivar.h>
42 #define _COMPONENT ACPI_OEM
43 ACPI_MODULE_NAME("Panasonic")
46 #undef ACPI_PANASONIC_DEBUG
53 #define HKEY_REG_LCD_BRIGHTNESS_MAX_AC 0x02
54 #define HKEY_REG_LCD_BRIGHTNESS_MIN_AC 0x03
55 #define HKEY_REG_LCD_BRIGHTNESS_AC 0x04
56 #define HKEY_REG_LCD_BRIGHTNESS_MAX_DC 0x05
57 #define HKEY_REG_LCD_BRIGHTNESS_MIN_DC 0x06
58 #define HKEY_REG_LCD_BRIGHTNESS_DC 0x07
59 #define HKEY_REG_SOUND_MUTE 0x08
61 /* Field definitions */
62 #define HKEY_LCD_BRIGHTNESS_BITS 4
63 #define HKEY_LCD_BRIGHTNESS_DIV ((1 << HKEY_LCD_BRIGHTNESS_BITS) - 1)
65 struct acpi_panasonic_softc {
69 struct sysctl_ctx_list sysctl_ctx;
70 struct sysctl_oid *sysctl_tree;
72 eventhandler_tag power_evh;
75 /* Prototype for HKEY functions for getting/setting a value. */
76 typedef int hkey_fn_t(ACPI_HANDLE, int, UINT32 *);
78 static int acpi_panasonic_probe(device_t dev);
79 static int acpi_panasonic_attach(device_t dev);
80 static int acpi_panasonic_detach(device_t dev);
81 static int acpi_panasonic_shutdown(device_t dev);
82 static int acpi_panasonic_sysctl(SYSCTL_HANDLER_ARGS);
83 static ACPI_INTEGER acpi_panasonic_sinf(ACPI_HANDLE h, ACPI_INTEGER index);
84 static void acpi_panasonic_sset(ACPI_HANDLE h, ACPI_INTEGER index,
86 static int acpi_panasonic_hkey_event(struct acpi_panasonic_softc *sc,
87 ACPI_HANDLE h, UINT32 *arg);
88 static void acpi_panasonic_hkey_action(struct acpi_panasonic_softc *sc,
89 ACPI_HANDLE h, UINT32 key);
90 static void acpi_panasonic_notify(ACPI_HANDLE h, UINT32 notify,
92 static void acpi_panasonic_power_profile(void *arg);
94 static hkey_fn_t hkey_lcd_brightness_max;
95 static hkey_fn_t hkey_lcd_brightness_min;
96 static hkey_fn_t hkey_lcd_brightness;
97 static hkey_fn_t hkey_sound_mute;
98 ACPI_SERIAL_DECL(panasonic, "ACPI Panasonic extras");
100 /* Table of sysctl names and HKEY functions to call. */
106 {"lcd_brightness_max", hkey_lcd_brightness_max},
107 {"lcd_brightness_min", hkey_lcd_brightness_min},
108 {"lcd_brightness", hkey_lcd_brightness},
109 {"sound_mute", hkey_sound_mute},
113 static device_method_t acpi_panasonic_methods[] = {
114 DEVMETHOD(device_probe, acpi_panasonic_probe),
115 DEVMETHOD(device_attach, acpi_panasonic_attach),
116 DEVMETHOD(device_detach, acpi_panasonic_detach),
117 DEVMETHOD(device_shutdown, acpi_panasonic_shutdown),
122 static driver_t acpi_panasonic_driver = {
124 acpi_panasonic_methods,
125 sizeof(struct acpi_panasonic_softc),
128 static devclass_t acpi_panasonic_devclass;
130 DRIVER_MODULE(acpi_panasonic, acpi, acpi_panasonic_driver,
131 acpi_panasonic_devclass, 0, 0);
132 MODULE_DEPEND(acpi_panasonic, acpi, 1, 1, 1);
135 acpi_panasonic_probe(device_t dev)
137 static char *mat_ids[] = { "MAT0019", NULL };
139 if (acpi_disabled("panasonic") ||
140 ACPI_ID_PROBE(device_get_parent(dev), dev, mat_ids) == NULL ||
141 device_get_unit(dev) != 0)
144 device_set_desc(dev, "Panasonic Notebook Hotkeys");
149 acpi_panasonic_attach(device_t dev)
151 struct acpi_panasonic_softc *sc;
152 struct acpi_softc *acpi_sc;
156 sc = device_get_softc(dev);
158 sc->handle = acpi_get_handle(dev);
160 acpi_sc = acpi_device_get_parent_softc(dev);
162 /* Build sysctl tree */
163 sysctl_ctx_init(&sc->sysctl_ctx);
164 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
165 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
166 "panasonic", CTLFLAG_RD, 0, "");
167 for (i = 0; sysctl_table[i].name != NULL; i++) {
168 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
169 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
170 sysctl_table[i].name,
171 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY,
172 sc, i, acpi_panasonic_sysctl, "I", "");
176 /* Activate hotkeys */
177 status = AcpiEvaluateObject(sc->handle, "", NULL, NULL);
178 if (ACPI_FAILURE(status)) {
179 device_printf(dev, "enable FN keys failed\n");
180 sysctl_ctx_free(&sc->sysctl_ctx);
185 /* Handle notifies */
186 status = AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
187 acpi_panasonic_notify, sc);
188 if (ACPI_FAILURE(status)) {
189 device_printf(dev, "couldn't install notify handler - %s\n",
190 AcpiFormatException(status));
191 sysctl_ctx_free(&sc->sysctl_ctx);
195 /* Install power profile event handler */
196 sc->power_evh = EVENTHANDLER_REGISTER(power_profile_change,
197 acpi_panasonic_power_profile, sc->handle, 0);
203 acpi_panasonic_detach(device_t dev)
205 struct acpi_panasonic_softc *sc;
207 sc = device_get_softc(dev);
209 /* Remove power profile event handler */
210 EVENTHANDLER_DEREGISTER(power_profile_change, sc->power_evh);
212 /* Remove notify handler */
213 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
214 acpi_panasonic_notify);
216 /* Free sysctl tree */
217 sysctl_ctx_free(&sc->sysctl_ctx);
223 acpi_panasonic_shutdown(device_t dev)
225 struct acpi_panasonic_softc *sc;
228 /* Mute the main audio during reboot to prevent static burst to speaker. */
229 sc = device_get_softc(dev);
231 hkey_sound_mute(sc->handle, HKEY_SET, &mute);
236 acpi_panasonic_sysctl(SYSCTL_HANDLER_ARGS)
238 struct acpi_panasonic_softc *sc;
243 sc = (struct acpi_panasonic_softc *)oidp->oid_arg1;
244 function = oidp->oid_arg2;
245 handler = sysctl_table[function].handler;
247 /* Get the current value from the appropriate function. */
248 ACPI_SERIAL_BEGIN(panasonic);
249 error = handler(sc->handle, HKEY_GET, &arg);
253 /* Send the current value to the user and return if no new value. */
254 error = sysctl_handle_int(oidp, &arg, 0, req);
255 if (error != 0 || req->newptr == NULL)
258 /* Set the new value via the appropriate function. */
259 error = handler(sc->handle, HKEY_SET, &arg);
262 ACPI_SERIAL_END(panasonic);
267 acpi_panasonic_sinf(ACPI_HANDLE h, ACPI_INTEGER index)
273 ACPI_SERIAL_ASSERT(panasonic);
275 buf.Length = ACPI_ALLOCATE_BUFFER;
277 AcpiEvaluateObject(h, "SINF", NULL, &buf);
278 res = (ACPI_OBJECT *)buf.Pointer;
279 if (res->Type == ACPI_TYPE_PACKAGE)
280 ret = res->Package.Elements[index].Integer.Value;
281 AcpiOsFree(buf.Pointer);
287 acpi_panasonic_sset(ACPI_HANDLE h, ACPI_INTEGER index, ACPI_INTEGER val)
289 ACPI_OBJECT_LIST args;
292 ACPI_SERIAL_ASSERT(panasonic);
293 obj[0].Type = ACPI_TYPE_INTEGER;
294 obj[0].Integer.Value = index;
295 obj[1].Type = ACPI_TYPE_INTEGER;
296 obj[1].Integer.Value = val;
299 AcpiEvaluateObject(h, "SSET", &args, NULL);
303 hkey_lcd_brightness_max(ACPI_HANDLE h, int op, UINT32 *val)
307 ACPI_SERIAL_ASSERT(panasonic);
308 reg = (power_profile_get_state() == POWER_PROFILE_PERFORMANCE) ?
309 HKEY_REG_LCD_BRIGHTNESS_MAX_AC : HKEY_REG_LCD_BRIGHTNESS_MAX_DC;
316 *val = acpi_panasonic_sinf(h, reg);
324 hkey_lcd_brightness_min(ACPI_HANDLE h, int op, UINT32 *val)
328 ACPI_SERIAL_ASSERT(panasonic);
329 reg = (power_profile_get_state() == POWER_PROFILE_PERFORMANCE) ?
330 HKEY_REG_LCD_BRIGHTNESS_MIN_AC : HKEY_REG_LCD_BRIGHTNESS_MIN_DC;
337 *val = acpi_panasonic_sinf(h, reg);
345 hkey_lcd_brightness(ACPI_HANDLE h, int op, UINT32 *val)
350 reg = (power_profile_get_state() == POWER_PROFILE_PERFORMANCE) ?
351 HKEY_REG_LCD_BRIGHTNESS_AC : HKEY_REG_LCD_BRIGHTNESS_DC;
353 ACPI_SERIAL_ASSERT(panasonic);
356 hkey_lcd_brightness_max(h, HKEY_GET, &max);
357 hkey_lcd_brightness_min(h, HKEY_GET, &min);
358 if (*val < min || *val > max)
360 acpi_panasonic_sset(h, reg, *val);
363 *val = acpi_panasonic_sinf(h, reg);
371 hkey_sound_mute(ACPI_HANDLE h, int op, UINT32 *val)
374 ACPI_SERIAL_ASSERT(panasonic);
377 if (*val != 0 && *val != 1)
379 acpi_panasonic_sset(h, HKEY_REG_SOUND_MUTE, *val);
382 *val = acpi_panasonic_sinf(h, HKEY_REG_SOUND_MUTE);
390 acpi_panasonic_hkey_event(struct acpi_panasonic_softc *sc, ACPI_HANDLE h,
398 ACPI_SERIAL_ASSERT(panasonic);
401 buf.Length = ACPI_ALLOCATE_BUFFER;
403 AcpiEvaluateObject(h, "HINF", NULL, &buf);
404 res = (ACPI_OBJECT *)buf.Pointer;
405 if (res->Type != ACPI_TYPE_INTEGER) {
406 device_printf(sc->dev, "HINF returned non-integer\n");
409 val = res->Integer.Value;
410 #ifdef ACPI_PANASONIC_DEBUG
411 device_printf(sc->dev, "%s button Fn+F%d\n",
412 (val & 0x80) ? "Pressed" : "Released",
415 if ((val & 0x7f) > 0 && (val & 0x7f) < 11) {
421 AcpiOsFree(buf.Pointer);
427 acpi_panasonic_hkey_action(struct acpi_panasonic_softc *sc, ACPI_HANDLE h,
430 struct acpi_softc *acpi_sc;
433 acpi_sc = acpi_device_get_parent_softc(sc->dev);
435 ACPI_SERIAL_ASSERT(panasonic);
438 /* Decrease LCD brightness. */
439 hkey_lcd_brightness_max(h, HKEY_GET, &max);
440 hkey_lcd_brightness_min(h, HKEY_GET, &min);
441 hkey_lcd_brightness(h, HKEY_GET, &arg);
442 arg -= max / HKEY_LCD_BRIGHTNESS_DIV;
447 hkey_lcd_brightness(h, HKEY_SET, &arg);
450 /* Increase LCD brightness. */
451 hkey_lcd_brightness_max(h, HKEY_GET, &max);
452 hkey_lcd_brightness_min(h, HKEY_GET, &min);
453 hkey_lcd_brightness(h, HKEY_GET, &arg);
454 arg += max / HKEY_LCD_BRIGHTNESS_DIV;
459 hkey_lcd_brightness(h, HKEY_SET, &arg);
462 /* Toggle sound mute. */
463 hkey_sound_mute(h, HKEY_GET, &arg);
468 hkey_sound_mute(h, HKEY_SET, &arg);
472 acpi_event_sleep_button_sleep(acpi_sc);
478 acpi_panasonic_notify(ACPI_HANDLE h, UINT32 notify, void *context)
480 struct acpi_panasonic_softc *sc;
483 sc = (struct acpi_panasonic_softc *)context;
487 ACPI_SERIAL_BEGIN(panasonic);
488 if (acpi_panasonic_hkey_event(sc, h, &key) == 0) {
489 acpi_panasonic_hkey_action(sc, h, key);
490 acpi_UserNotify("Panasonic", h, (uint8_t)key);
492 ACPI_SERIAL_END(panasonic);
495 device_printf(sc->dev, "unknown notify: %#x\n", notify);
501 acpi_panasonic_power_profile(void *arg)
506 handle = (ACPI_HANDLE)arg;
508 /* Reset current brightness according to new power state. */
509 ACPI_SERIAL_BEGIN(panasonic);
510 hkey_lcd_brightness(handle, HKEY_GET, &brightness);
511 hkey_lcd_brightness(handle, HKEY_SET, &brightness);
512 ACPI_SERIAL_END(panasonic);