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 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 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 * $FreeBSD$ 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" 37 38 #include <dev/acpica/acpivar.h> 39 40 struct acpi_button_softc { 41 device_t button_dev; 42 ACPI_HANDLE button_handle; 43 #define ACPI_POWER_BUTTON 0 44 #define ACPI_SLEEP_BUTTON 1 45 boolean_t button_type; /* Power or Sleep Button */ 46 }; 47 48 static int acpi_button_probe(device_t dev); 49 static int acpi_button_attach(device_t dev); 50 static void acpi_button_notify_handler(ACPI_HANDLE h,UINT32 notify, void *context); 51 static void acpi_button_notify_pressed_for_sleep(void *arg); 52 static void acpi_button_notify_pressed_for_wakeup(void *arg); 53 54 static device_method_t acpi_button_methods[] = { 55 /* Device interface */ 56 DEVMETHOD(device_probe, acpi_button_probe), 57 DEVMETHOD(device_attach, acpi_button_attach), 58 59 {0, 0} 60 }; 61 62 static driver_t acpi_button_driver = { 63 "acpi_button", 64 acpi_button_methods, 65 sizeof(struct acpi_button_softc), 66 }; 67 68 devclass_t acpi_button_devclass; 69 DRIVER_MODULE(acpi_button, acpi, acpi_button_driver, acpi_button_devclass, 0, 0); 70 71 static int 72 acpi_button_probe(device_t dev) 73 { 74 struct acpi_button_softc *sc; 75 76 sc = device_get_softc(dev); 77 if (acpi_get_type(dev) == ACPI_TYPE_DEVICE) { 78 if (acpi_MatchHid(dev, "PNP0C0C")) { 79 device_set_desc(dev, "Control Method Power Button Device"); 80 sc->button_type = ACPI_POWER_BUTTON; 81 return(0); 82 } 83 if (acpi_MatchHid(dev, "PNP0C0E")) { 84 device_set_desc(dev, "Control Method Sleep Button Device"); 85 sc->button_type = ACPI_SLEEP_BUTTON; 86 return(0); 87 } 88 return(ENXIO); 89 } 90 return(ENXIO); 91 } 92 93 static int 94 acpi_button_attach(device_t dev) 95 { 96 struct acpi_button_softc *sc; 97 ACPI_STATUS status; 98 99 sc = device_get_softc(dev); 100 sc->button_dev = dev; 101 sc->button_handle = acpi_get_handle(dev); 102 103 if ((status = AcpiInstallNotifyHandler(sc->button_handle, ACPI_DEVICE_NOTIFY, 104 acpi_button_notify_handler, sc)) != AE_OK) { 105 device_printf(sc->button_dev, "couldn't install Notify handler - %s\n", acpi_strerror(status)); 106 return(ENXIO); 107 } 108 return(0); 109 } 110 111 static void 112 acpi_button_notify_pressed_for_sleep(void *arg) 113 { 114 struct acpi_button_softc *sc; 115 struct acpi_softc *acpi_sc; 116 117 sc = (struct acpi_button_softc *)arg; 118 acpi_sc = acpi_device_get_parent_softc(sc->button_dev); 119 if (acpi_sc == NULL) { 120 return; 121 } 122 123 switch (sc->button_type) { 124 case ACPI_POWER_BUTTON: 125 acpi_eventhandler_power_button_for_sleep((void *)acpi_sc); 126 break; 127 case ACPI_SLEEP_BUTTON: 128 acpi_eventhandler_sleep_button_for_sleep((void *)acpi_sc); 129 break; 130 default: 131 return; /* unknown button type */ 132 } 133 } 134 135 static void 136 acpi_button_notify_pressed_for_wakeup(void *arg) 137 { 138 struct acpi_button_softc *sc; 139 struct acpi_softc *acpi_sc; 140 141 sc = (struct acpi_button_softc *)arg; 142 acpi_sc = acpi_device_get_parent_softc(sc->button_dev); 143 if (acpi_sc == NULL) { 144 return; 145 } 146 147 switch (sc->button_type) { 148 case ACPI_POWER_BUTTON: 149 acpi_eventhandler_power_button_for_wakeup((void *)acpi_sc); 150 break; 151 case ACPI_SLEEP_BUTTON: 152 acpi_eventhandler_sleep_button_for_wakeup((void *)acpi_sc); 153 break; 154 default: 155 return; /* unknown button type */ 156 } 157 } 158 159 /* XXX maybe not here */ 160 #define ACPI_NOTIFY_BUTTON_PRESSED_FOR_SLEEP 0x80 161 #define ACPI_NOTIFY_BUTTON_PRESSED_FOR_WAKEUP 0x02 162 163 static void 164 acpi_button_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context) 165 { 166 struct acpi_button_softc *sc = (struct acpi_button_softc *)context; 167 168 switch (notify) { 169 case ACPI_NOTIFY_BUTTON_PRESSED_FOR_SLEEP: 170 AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_button_notify_pressed_for_sleep, sc); 171 device_printf(sc->button_dev, "pressed for sleep, button type: %d\n", sc->button_type); 172 break; 173 case ACPI_NOTIFY_BUTTON_PRESSED_FOR_WAKEUP: 174 AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_button_notify_pressed_for_wakeup, sc); 175 device_printf(sc->button_dev, "pressed for wakeup, button type: %d\n", sc->button_type); 176 break; 177 default: 178 return; /* unknown notification value */ 179 } 180 } 181 182 183