/*- * Copyright (c) 2012 Alexander Motin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include #include #include #include #include #include #include #include #include #include #include #include #include "acpi_wmi_if.h" #define _COMPONENT ACPI_OEM ACPI_MODULE_NAME("ASUS-WMI") #define ACPI_ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" #define ACPI_ASUS_WMI_EVENT_GUID "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C" #define ACPI_EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000" /* WMI Methods */ #define ASUS_WMI_METHODID_SPEC 0x43455053 #define ASUS_WMI_METHODID_SFUN 0x4E554653 #define ASUS_WMI_METHODID_DSTS 0x53544344 #define ASUS_WMI_METHODID_DSTS2 0x53545344 #define ASUS_WMI_METHODID_DEVS 0x53564544 #define ASUS_WMI_METHODID_INIT 0x54494E49 #define ASUS_WMI_METHODID_HKEY 0x59454B48 #define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE /* Wireless */ #define ASUS_WMI_DEVID_HW_SWITCH 0x00010001 #define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002 #define ASUS_WMI_DEVID_CWAP 0x00010003 #define ASUS_WMI_DEVID_WLAN 0x00010011 #define ASUS_WMI_DEVID_BLUETOOTH 0x00010013 #define ASUS_WMI_DEVID_GPS 0x00010015 #define ASUS_WMI_DEVID_WIMAX 0x00010017 #define ASUS_WMI_DEVID_WWAN3G 0x00010019 #define ASUS_WMI_DEVID_UWB 0x00010021 /* LEDs */ #define ASUS_WMI_DEVID_LED1 0x00020011 #define ASUS_WMI_DEVID_LED2 0x00020012 #define ASUS_WMI_DEVID_LED3 0x00020013 #define ASUS_WMI_DEVID_LED4 0x00020014 #define ASUS_WMI_DEVID_LED5 0x00020015 #define ASUS_WMI_DEVID_LED6 0x00020016 /* Backlight and Brightness */ #define ASUS_WMI_DEVID_BACKLIGHT 0x00050011 #define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012 #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021 #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* Misc */ #define ASUS_WMI_DEVID_CAMERA 0x00060013 #define ASUS_WMI_DEVID_CARDREADER 0x00080013 #define ASUS_WMI_DEVID_TOUCHPAD 0x00100011 #define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012 #define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011 #define ASUS_WMI_DEVID_FAN_CTRL 0x00110012 #define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012 /* DSTS masks */ #define ASUS_WMI_DSTS_STATUS_BIT 0x00000001 #define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002 #define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000 #define ASUS_WMI_DSTS_USER_BIT 0x00020000 #define ASUS_WMI_DSTS_BIOS_BIT 0x00040000 #define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF #define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00 struct acpi_asus_wmi_softc { device_t dev; device_t wmi_dev; const char *notify_guid; struct sysctl_ctx_list *sysctl_ctx; struct sysctl_oid *sysctl_tree; int dsts_id; int handle_keys; }; static struct { char *name; int dev_id; char *description; int flag_rdonly; } acpi_asus_wmi_sysctls[] = { { .name = "hw_switch", .dev_id = ASUS_WMI_DEVID_HW_SWITCH, .description = "hw_switch", }, { .name = "wireless_led", .dev_id = ASUS_WMI_DEVID_WIRELESS_LED, .description = "Wireless LED control", }, { .name = "cwap", .dev_id = ASUS_WMI_DEVID_CWAP, .description = "Alt+F2 function", }, { .name = "wlan", .dev_id = ASUS_WMI_DEVID_WLAN, .description = "WLAN power control", }, { .name = "bluetooth", .dev_id = ASUS_WMI_DEVID_BLUETOOTH, .description = "Bluetooth power control", }, { .name = "gps", .dev_id = ASUS_WMI_DEVID_GPS, .description = "GPS power control", }, { .name = "wimax", .dev_id = ASUS_WMI_DEVID_WIMAX, .description = "WiMAX power control", }, { .name = "wwan3g", .dev_id = ASUS_WMI_DEVID_WWAN3G, .description = "WWAN-3G power control", }, { .name = "uwb", .dev_id = ASUS_WMI_DEVID_UWB, .description = "UWB power control", }, { .name = "led1", .dev_id = ASUS_WMI_DEVID_LED1, .description = "LED1 control", }, { .name = "led2", .dev_id = ASUS_WMI_DEVID_LED2, .description = "LED2 control", }, { .name = "led3", .dev_id = ASUS_WMI_DEVID_LED3, .description = "LED3 control", }, { .name = "led4", .dev_id = ASUS_WMI_DEVID_LED4, .description = "LED4 control", }, { .name = "led5", .dev_id = ASUS_WMI_DEVID_LED5, .description = "LED5 control", }, { .name = "led6", .dev_id = ASUS_WMI_DEVID_LED6, .description = "LED6 control", }, { .name = "backlight", .dev_id = ASUS_WMI_DEVID_BACKLIGHT, .description = "LCD backlight on/off control", }, { .name = "brightness", .dev_id = ASUS_WMI_DEVID_BRIGHTNESS, .description = "LCD backlight brightness control", }, { .name = "kbd_backlight", .dev_id = ASUS_WMI_DEVID_KBD_BACKLIGHT, .description = "Keyboard backlight brightness control", }, { .name = "light_sensor", .dev_id = ASUS_WMI_DEVID_LIGHT_SENSOR, .description = "Ambient light sensor", }, { .name = "camera", .dev_id = ASUS_WMI_DEVID_CAMERA, .description = "Camera power control", }, { .name = "cardreader", .dev_id = ASUS_WMI_DEVID_CARDREADER, .description = "Cardreader power control", }, { .name = "touchpad", .dev_id = ASUS_WMI_DEVID_TOUCHPAD, .description = "Touchpad control", }, { .name = "touchpad_led", .dev_id = ASUS_WMI_DEVID_TOUCHPAD_LED, .description = "Touchpad LED control", }, { .name = "themperature", .dev_id = ASUS_WMI_DEVID_THERMAL_CTRL, .description = "Temperature (C)", .flag_rdonly = 1 }, { .name = "fan_speed", .dev_id = ASUS_WMI_DEVID_FAN_CTRL, .description = "Fan speed (0-3)", .flag_rdonly = 1 }, { .name = "processor_state", .dev_id = ASUS_WMI_DEVID_PROCESSOR_STATE, .flag_rdonly = 1 }, { NULL, 0, NULL, 0 } }; ACPI_SERIAL_DECL(asus_wmi, "ASUS WMI device"); static void acpi_asus_wmi_identify(driver_t *driver, device_t parent); static int acpi_asus_wmi_probe(device_t dev); static int acpi_asus_wmi_attach(device_t dev); static int acpi_asus_wmi_detach(device_t dev); static int acpi_asus_wmi_sysctl(SYSCTL_HANDLER_ARGS); static int acpi_asus_wmi_sysctl_set(struct acpi_asus_wmi_softc *sc, int dev_id, int arg, int oldarg); static int acpi_asus_wmi_sysctl_get(struct acpi_asus_wmi_softc *sc, int dev_id); static int acpi_asus_wmi_evaluate_method(device_t wmi_dev, int method, UINT32 arg0, UINT32 arg1, UINT32 *retval); static int acpi_wpi_asus_get_devstate(struct acpi_asus_wmi_softc *sc, UINT32 dev_id, UINT32 *retval); static int acpi_wpi_asus_set_devstate(struct acpi_asus_wmi_softc *sc, UINT32 dev_id, UINT32 ctrl_param, UINT32 *retval); static void acpi_asus_wmi_notify(ACPI_HANDLE h, UINT32 notify, void *context); static device_method_t acpi_asus_wmi_methods[] = { DEVMETHOD(device_identify, acpi_asus_wmi_identify), DEVMETHOD(device_probe, acpi_asus_wmi_probe), DEVMETHOD(device_attach, acpi_asus_wmi_attach), DEVMETHOD(device_detach, acpi_asus_wmi_detach), DEVMETHOD_END }; static driver_t acpi_asus_wmi_driver = { "acpi_asus_wmi", acpi_asus_wmi_methods, sizeof(struct acpi_asus_wmi_softc), }; static devclass_t acpi_asus_wmi_devclass; DRIVER_MODULE(acpi_asus_wmi, acpi_wmi, acpi_asus_wmi_driver, acpi_asus_wmi_devclass, 0, 0); MODULE_DEPEND(acpi_asus_wmi, acpi_wmi, 1, 1, 1); MODULE_DEPEND(acpi_asus_wmi, acpi, 1, 1, 1); static void acpi_asus_wmi_identify(driver_t *driver, device_t parent) { /* Don't do anything if driver is disabled. */ if (acpi_disabled("asus_wmi")) return; /* Add only a single device instance. */ if (device_find_child(parent, "acpi_asus_wmi", -1) != NULL) return; /* Check management GUID to see whether system is compatible. */ if (!ACPI_WMI_PROVIDES_GUID_STRING(parent, ACPI_ASUS_WMI_MGMT_GUID)) return; if (BUS_ADD_CHILD(parent, 0, "acpi_asus_wmi", -1) == NULL) device_printf(parent, "add acpi_asus_wmi child failed\n"); } static int acpi_asus_wmi_probe(device_t dev) { if (!ACPI_WMI_PROVIDES_GUID_STRING(device_get_parent(dev), ACPI_ASUS_WMI_MGMT_GUID)) return (EINVAL); device_set_desc(dev, "ASUS WMI device"); return (0); } static int acpi_asus_wmi_attach(device_t dev) { struct acpi_asus_wmi_softc *sc; UINT32 val; int dev_id, i; ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); sc = device_get_softc(dev); sc->dev = dev; sc->wmi_dev = device_get_parent(dev); sc->handle_keys = 1; /* Check management GUID. */ if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_ASUS_WMI_MGMT_GUID)) { device_printf(dev, "WMI device does not provide the ASUS management GUID\n"); return (EINVAL); } /* Find proper DSTS method. */ sc->dsts_id = ASUS_WMI_METHODID_DSTS; next: for (i = 0; acpi_asus_wmi_sysctls[i].name != NULL; ++i) { dev_id = acpi_asus_wmi_sysctls[i].dev_id; if (acpi_wpi_asus_get_devstate(sc, dev_id, &val)) continue; break; } if (acpi_asus_wmi_sysctls[i].name == NULL) { if (sc->dsts_id == ASUS_WMI_METHODID_DSTS) { sc->dsts_id = ASUS_WMI_METHODID_DSTS2; goto next; } else { device_printf(dev, "Can not detect DSTS method ID\n"); return (EINVAL); } } /* Find proper and attach to notufy GUID. */ if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_ASUS_WMI_EVENT_GUID)) sc->notify_guid = ACPI_ASUS_WMI_EVENT_GUID; else if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_EEEPC_WMI_EVENT_GUID)) sc->notify_guid = ACPI_EEEPC_WMI_EVENT_GUID; else sc->notify_guid = NULL; if (sc->notify_guid != NULL) { if (ACPI_WMI_INSTALL_EVENT_HANDLER(sc->wmi_dev, sc->notify_guid, acpi_asus_wmi_notify, dev)) sc->notify_guid = NULL; } if (sc->notify_guid == NULL) device_printf(dev, "Could not install event handler!\n"); /* Initialize. */ if (!acpi_asus_wmi_evaluate_method(sc->wmi_dev, ASUS_WMI_METHODID_INIT, 0, 0, &val) && bootverbose) device_printf(dev, "Initialization: %#x\n", val); if (!acpi_asus_wmi_evaluate_method(sc->wmi_dev, ASUS_WMI_METHODID_SPEC, 0, 0x9, &val) && bootverbose) device_printf(dev, "WMI BIOS version: %d.%d\n", val >> 16, val & 0xFF); if (!acpi_asus_wmi_evaluate_method(sc->wmi_dev, ASUS_WMI_METHODID_SFUN, 0, 0, &val) && bootverbose) device_printf(dev, "SFUN value: %#x\n", val); ACPI_SERIAL_BEGIN(asus_wmi); sc->sysctl_ctx = device_get_sysctl_ctx(dev); sc->sysctl_tree = device_get_sysctl_tree(dev); SYSCTL_ADD_INT(sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "handle_keys", CTLFLAG_RW, &sc->handle_keys, 0, "Handle some hardware keys inside the driver"); for (i = 0; acpi_asus_wmi_sysctls[i].name != NULL; ++i) { dev_id = acpi_asus_wmi_sysctls[i].dev_id; if (acpi_wpi_asus_get_devstate(sc, dev_id, &val)) continue; switch (dev_id) { case ASUS_WMI_DEVID_THERMAL_CTRL: case ASUS_WMI_DEVID_PROCESSOR_STATE: case ASUS_WMI_DEVID_FAN_CTRL: case ASUS_WMI_DEVID_BRIGHTNESS: if (val == 0) continue; break; default: if ((val & ASUS_WMI_DSTS_PRESENCE_BIT) == 0) continue; break; } if (acpi_asus_wmi_sysctls[i].flag_rdonly != 0) { SYSCTL_ADD_PROC(sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, acpi_asus_wmi_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD, sc, i, acpi_asus_wmi_sysctl, "I", acpi_asus_wmi_sysctls[i].description); } else { SYSCTL_ADD_PROC(sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, acpi_asus_wmi_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW, sc, i, acpi_asus_wmi_sysctl, "I", acpi_asus_wmi_sysctls[i].description); } } ACPI_SERIAL_END(asus_wmi); return (0); } static int acpi_asus_wmi_detach(device_t dev) { struct acpi_asus_wmi_softc *sc = device_get_softc(dev); ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); if (sc->notify_guid) ACPI_WMI_REMOVE_EVENT_HANDLER(dev, sc->notify_guid); return (0); } static int acpi_asus_wmi_sysctl(SYSCTL_HANDLER_ARGS) { struct acpi_asus_wmi_softc *sc; int arg; int oldarg; int error = 0; int function; int dev_id; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); sc = (struct acpi_asus_wmi_softc *)oidp->oid_arg1; function = oidp->oid_arg2; dev_id = acpi_asus_wmi_sysctls[function].dev_id; ACPI_SERIAL_BEGIN(asus_wmi); arg = acpi_asus_wmi_sysctl_get(sc, dev_id); oldarg = arg; error = sysctl_handle_int(oidp, &arg, 0, req); if (!error && req->newptr != NULL) error = acpi_asus_wmi_sysctl_set(sc, dev_id, arg, oldarg); ACPI_SERIAL_END(asus_wmi); return (error); } static int acpi_asus_wmi_sysctl_get(struct acpi_asus_wmi_softc *sc, int dev_id) { UINT32 val = 0; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); ACPI_SERIAL_ASSERT(asus_wmi); acpi_wpi_asus_get_devstate(sc, dev_id, &val); switch(dev_id) { case ASUS_WMI_DEVID_THERMAL_CTRL: val = (val - 2732 + 5) / 10; break; case ASUS_WMI_DEVID_PROCESSOR_STATE: case ASUS_WMI_DEVID_FAN_CTRL: break; case ASUS_WMI_DEVID_BRIGHTNESS: val &= ASUS_WMI_DSTS_BRIGHTNESS_MASK; break; case ASUS_WMI_DEVID_KBD_BACKLIGHT: val &= 0x7; break; default: if (val & ASUS_WMI_DSTS_UNKNOWN_BIT) val = -1; else val = !!(val & ASUS_WMI_DSTS_STATUS_BIT); break; } return (val); } static int acpi_asus_wmi_sysctl_set(struct acpi_asus_wmi_softc *sc, int dev_id, int arg, int oldarg) { ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); ACPI_SERIAL_ASSERT(asus_wmi); switch(dev_id) { case ASUS_WMI_DEVID_KBD_BACKLIGHT: arg = min(0x7, arg); if (arg != 0) arg |= 0x80; break; } acpi_wpi_asus_set_devstate(sc, dev_id, arg, NULL); return (0); } static __inline void acpi_asus_wmi_free_buffer(ACPI_BUFFER* buf) { if (buf && buf->Pointer) { AcpiOsFree(buf->Pointer); } } static void acpi_asus_wmi_notify(ACPI_HANDLE h, UINT32 notify, void *context) { device_t dev = context; ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); UINT32 val; int code = 0; struct acpi_asus_wmi_softc *sc = device_get_softc(dev); ACPI_BUFFER response = { ACPI_ALLOCATE_BUFFER, NULL }; ACPI_OBJECT *obj; ACPI_WMI_GET_EVENT_DATA(sc->wmi_dev, notify, &response); obj = (ACPI_OBJECT*) response.Pointer; if (obj && obj->Type == ACPI_TYPE_INTEGER) { code = obj->Integer.Value; acpi_UserNotify("ASUS", ACPI_ROOT_OBJECT, code); } if (code && sc->handle_keys) { /* Keyboard backlight control. */ if (code == 0xc4 || code == 0xc5) { acpi_wpi_asus_get_devstate(sc, ASUS_WMI_DEVID_KBD_BACKLIGHT, &val); val &= 0x7; if (code == 0xc4) { if (val < 0x7) val++; } else if (val > 0) val--; if (val != 0) val |= 0x80; acpi_wpi_asus_set_devstate(sc, ASUS_WMI_DEVID_KBD_BACKLIGHT, val, NULL); } /* Touchpad control. */ if (code == 0x6b) { acpi_wpi_asus_get_devstate(sc, ASUS_WMI_DEVID_TOUCHPAD, &val); val = !(val & 1); acpi_wpi_asus_set_devstate(sc, ASUS_WMI_DEVID_TOUCHPAD, val, NULL); } } acpi_asus_wmi_free_buffer(&response); } static int acpi_asus_wmi_evaluate_method(device_t wmi_dev, int method, UINT32 arg0, UINT32 arg1, UINT32 *retval) { UINT32 params[2] = { arg0, arg1 }; UINT32 result; ACPI_OBJECT *obj; ACPI_BUFFER in = { sizeof(params), ¶ms }; ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL }; if (ACPI_FAILURE(ACPI_WMI_EVALUATE_CALL(wmi_dev, ACPI_ASUS_WMI_MGMT_GUID, 1, method, &in, &out))) { acpi_asus_wmi_free_buffer(&out); return (-EINVAL); } obj = out.Pointer; if (obj && obj->Type == ACPI_TYPE_INTEGER) result = (UINT32) obj->Integer.Value; else result = 0; acpi_asus_wmi_free_buffer(&out); if (retval) *retval = result; return (result == ASUS_WMI_UNSUPPORTED_METHOD ? -ENODEV : 0); } static int acpi_wpi_asus_get_devstate(struct acpi_asus_wmi_softc *sc, UINT32 dev_id, UINT32 *retval) { return (acpi_asus_wmi_evaluate_method(sc->wmi_dev, sc->dsts_id, dev_id, 0, retval)); } static int acpi_wpi_asus_set_devstate(struct acpi_asus_wmi_softc *sc, UINT32 dev_id, UINT32 ctrl_param, UINT32 *retval) { return (acpi_asus_wmi_evaluate_method(sc->wmi_dev, ASUS_WMI_METHODID_DEVS, dev_id, ctrl_param, retval)); }