1/*-
2 * Copyright (c) 2000 Mitsaru IWASAKI <iwasaki@jp.freebsd.org>
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/acpica/acpi_button.c 121493 2003-10-25 05:03:25Z njl $
29 */
30
31#include "opt_acpi.h"
32#include <sys/param.h>
33#include <sys/kernel.h>
34#include <sys/bus.h>
35
36#include "acpi.h"

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55static int acpi_button_probe(device_t dev);
56static int acpi_button_attach(device_t dev);
57static int acpi_button_suspend(device_t dev);
58static int acpi_button_resume(device_t dev);
59static void acpi_button_notify_handler(ACPI_HANDLE h, UINT32 notify,
60 void *context);
61static ACPI_STATUS
62 acpi_button_fixed_handler(void *context);
63static void acpi_button_notify_pressed_for_sleep(void *arg);
64static void acpi_button_notify_pressed_for_wakeup(void *arg);
65
66static device_method_t acpi_button_methods[] = {
67 /* Device interface */
68 DEVMETHOD(device_probe, acpi_button_probe),
69 DEVMETHOD(device_attach, acpi_button_attach),
70 DEVMETHOD(device_suspend, acpi_button_suspend),
71 DEVMETHOD(device_shutdown, acpi_button_suspend),
72 DEVMETHOD(device_resume, acpi_button_resume),

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122 ACPI_STATUS status;
123 int event;
124
125 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
126
127 sc = device_get_softc(dev);
128 sc->button_dev = dev;
129 sc->button_handle = acpi_get_handle(dev);
130
131 if (sc->fixed) {
132 event = (sc->button_type == ACPI_SLEEP_BUTTON) ?
133 ACPI_EVENT_SLEEP_BUTTON : ACPI_EVENT_POWER_BUTTON;
134 status = AcpiInstallFixedEventHandler(event,
135 acpi_button_fixed_handler, sc);
136 } else {
137 status = AcpiInstallNotifyHandler(sc->button_handle,
138 ACPI_DEVICE_NOTIFY, acpi_button_notify_handler, sc);
139 }
140 if (ACPI_FAILURE(status)) {
141 device_printf(sc->button_dev, "couldn't install notify handler - %s\n",
142 AcpiFormatException(status));
143 return_VALUE (ENXIO);
144 }
145 acpi_device_enable_wake_capability(sc->button_handle, 1);
146 return_VALUE (0);
147}
148
149static int
150acpi_button_suspend(device_t dev)
151{
152 struct acpi_button_softc *sc;
153

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158
159static int
160acpi_button_resume(device_t dev)
161{
162 return (0);
163}
164
165static void
166acpi_button_notify_pressed_for_sleep(void *arg)
167{
168 struct acpi_button_softc *sc;
169 struct acpi_softc *acpi_sc;
170
171 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
172
173 sc = (struct acpi_button_softc *)arg;
174 acpi_sc = acpi_device_get_parent_softc(sc->button_dev);
175 if (acpi_sc == NULL)
176 return_VOID;
177
178 acpi_UserNotify("Button", sc->button_handle, sc->button_type);
179
180 switch (sc->button_type) {
181 case ACPI_POWER_BUTTON:
182 ACPI_VPRINT(sc->button_dev, acpi_sc, "power button pressed\n");
183 acpi_eventhandler_power_button_for_sleep((void *)acpi_sc);
184 break;
185 case ACPI_SLEEP_BUTTON:
186 ACPI_VPRINT(sc->button_dev, acpi_sc, "sleep button pressed\n");
187 acpi_eventhandler_sleep_button_for_sleep((void *)acpi_sc);
188 break;
189 default:
190 break; /* unknown button type */
191 }
192}
193
194static void
195acpi_button_notify_pressed_for_wakeup(void *arg)
196{
197 struct acpi_button_softc *sc;
198 struct acpi_softc *acpi_sc;
199
200 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
201
202 sc = (struct acpi_button_softc *)arg;
203 acpi_sc = acpi_device_get_parent_softc(sc->button_dev);
204 if (acpi_sc == NULL)
205 return_VOID;
206
207 acpi_UserNotify("Button", sc->button_handle, sc->button_type);
208
209 switch (sc->button_type) {
210 case ACPI_POWER_BUTTON:
211 ACPI_VPRINT(sc->button_dev, acpi_sc, "wakeup by power button\n");
212 acpi_eventhandler_power_button_for_wakeup((void *)acpi_sc);
213 break;
214 case ACPI_SLEEP_BUTTON:
215 ACPI_VPRINT(sc->button_dev, acpi_sc, "wakeup by sleep button\n");
216 acpi_eventhandler_sleep_button_for_wakeup((void *)acpi_sc);
217 break;
218 default:
219 break; /* unknown button type */
220 }
221}
222
223static void
224acpi_button_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
225{
226 struct acpi_button_softc *sc = (struct acpi_button_softc *)context;
227
228 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
229
230 switch (notify) {
231 case ACPI_NOTIFY_BUTTON_PRESSED_FOR_SLEEP:
232 AcpiOsQueueForExecution(OSD_PRIORITY_LO,
233 acpi_button_notify_pressed_for_sleep, sc);
234 break;
235 case ACPI_NOTIFY_BUTTON_PRESSED_FOR_WAKEUP:
236 AcpiOsQueueForExecution(OSD_PRIORITY_LO,
237 acpi_button_notify_pressed_for_wakeup, sc);
238 break;
239 default:
240 break; /* unknown notification value */
241 }
242}
243
244static ACPI_STATUS
245acpi_button_fixed_handler(void *context)

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