@@ -441,4 +441,15 @@ config ACPI_TOSHIBA
If you have a legacy free Toshiba laptop (such as the Libretto L1
series), say Y.
+
+config MSI_WMI
+ tristate "MSI WMI extras"
+ depends on ACPI_WMI
+ depends on INPUT
+ ---help---
+ Say Y here if you want to support WMI-based hotkeys on MSI all-in-one
+ WindTop AE1900-WT.
+
+ To compile this driver as a module, choose M here: the module will
+ be called msi-wmi.
endif # X86_PLATFORM_DEVICES
@@ -21,3 +21,4 @@ obj-$(CONFIG_ACPI_WMI) += wmi.o
obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
+obj-$(CONFIG_MSI_WMI) += msi-wmi.o
new file mode 100644
@@ -0,0 +1,212 @@
+/*
+ * MSI WMI hotkeys
+ *
+ * Copyright (C) 2009 Jérôme Pouiller <jezz@sysmic.org>
+ *
+ * Portions based on hp-wmi.c:
+ * Copyright (C) 2008 Red Hat <mjg@redhat.com>
+ *
+ * Portions based on wistron_btns.c:
+ * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
+ * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
+ * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/acpi.h>
+#include <linux/jiffies.h>
+
+#define MSIWMI_EVENT_GUID "b6f3eef2-3d2f-49dc-9de3-85bce18c62f2"
+
+struct key_entry {
+ u16 code;
+ u16 keycode;
+};
+
+static struct key_entry msi_wmi_keymap[] = {
+ /*Brightness keys should be used for a backlight driver*/
+ {208, KEY_BRIGHTNESSUP},
+ {209, KEY_BRIGHTNESSDOWN},
+ {210, KEY_VOLUMEUP},
+ {211, KEY_VOLUMEDOWN},
+ {0}
+};
+
+static struct input_dev *msi_wmi_input_dev;
+static unsigned long long msi_wmi_time_last_press;
+static unsigned pression_timeout = 10;
+
+static struct key_entry *msi_wmi_get_entry_by_scancode(int code)
+{
+ struct key_entry *key;
+
+ for (key = msi_wmi_keymap; key->code; key++)
+ if (code == key->code)
+ return key;
+
+ return NULL;
+}
+
+static struct key_entry *msi_wmi_get_entry_by_keycode(int keycode)
+{
+ struct key_entry *key;
+
+ for (key = msi_wmi_keymap; key->code; key++)
+ if (keycode == key->keycode)
+ return key;
+
+ return NULL;
+}
+
+static void msi_wmi_notify(u32 value, void *context)
+{
+ struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+ static struct key_entry *key;
+ union acpi_object *obj;
+
+ acpi_status ret;
+ ret = wmi_get_event_data(value, &response);
+ obj = (union acpi_object *)response.pointer;
+
+ if (!obj || obj->type != ACPI_TYPE_INTEGER) {
+ printk(KERN_INFO "MSI WMI: Unknown response received\n");
+ return;
+ }
+
+ if (jiffies_to_msecs(get_jiffies_64() - msi_wmi_time_last_press)
+ > pression_timeout) {
+ printk(KERN_DEBUG
+ "MSI WMI: event correctly received: %llu\n",
+ obj->integer.value);
+ msi_wmi_time_last_press = get_jiffies_64();
+ key = msi_wmi_get_entry_by_scancode(obj->integer.value);
+ input_report_key(msi_wmi_input_dev, key->keycode, 1);
+ input_sync(msi_wmi_input_dev);
+ input_report_key(msi_wmi_input_dev, key->keycode, 0);
+ input_sync(msi_wmi_input_dev);
+ }
+}
+
+static int msi_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode)
+{
+ struct key_entry *key = msi_wmi_get_entry_by_scancode(scancode);
+
+ if (key && key->code) {
+ *keycode = key->keycode;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int msi_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode)
+{
+ struct key_entry *key;
+ int old_keycode;
+
+ if (keycode < 0 || keycode > KEY_MAX)
+ return -EINVAL;
+
+ key = msi_wmi_get_entry_by_scancode(scancode);
+ if (key && key->code) {
+ old_keycode = key->keycode;
+ key->keycode = keycode;
+ set_bit(keycode, dev->keybit);
+ if (!msi_wmi_get_entry_by_keycode(old_keycode))
+ clear_bit(old_keycode, dev->keybit);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int __init msi_wmi_input_setup(void)
+{
+ struct key_entry *key;
+ int err;
+
+ msi_wmi_input_dev = input_allocate_device();
+
+ msi_wmi_input_dev->name = "MSI WMI hotkeys";
+ msi_wmi_input_dev->phys = "wmi/input0";
+ msi_wmi_input_dev->id.bustype = BUS_HOST;
+ msi_wmi_input_dev->getkeycode = msi_wmi_getkeycode;
+ msi_wmi_input_dev->setkeycode = msi_wmi_setkeycode;
+
+ for (key = msi_wmi_keymap; key->code; key++) {
+ set_bit(EV_KEY, msi_wmi_input_dev->evbit);
+ set_bit(key->keycode, msi_wmi_input_dev->keybit);
+ }
+
+ err = input_register_device(msi_wmi_input_dev);
+
+ if (err)
+ input_free_device(msi_wmi_input_dev);
+
+ return err;
+}
+
+static int __init msi_wmi_init(void)
+{
+ int err;
+
+ msi_wmi_time_last_press = get_jiffies_64();
+ if (!wmi_has_guid(MSIWMI_EVENT_GUID)) {
+ printk(KERN_ERR
+ "This machine doesn't have MSI-hotkeys through WMI\n");
+ goto load_error;
+ }
+ err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
+ msi_wmi_notify, NULL);
+ if (err) {
+ printk(KERN_ERR
+ "MSI WMI: Error while installing notify handler\n");
+ goto load_error;
+ }
+
+ msi_wmi_input_setup();
+
+ return 0;
+load_error:
+ return -ENODEV;
+}
+
+static void __exit msi_wmi_exit(void)
+{
+ if (wmi_has_guid(MSIWMI_EVENT_GUID)) {
+ wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
+ input_unregister_device(msi_wmi_input_dev);
+ }
+}
+
+module_init(msi_wmi_init);
+module_exit(msi_wmi_exit);
+module_param(pression_timeout, uint, 0);
+
+MODULE_AUTHOR("Jérôme Pouiller <jezz@sysmic.org>");
+MODULE_AUTHOR("Michael Bouchaud <michael@substantiel.fr");
+MODULE_AUTHOR("Anisse Astier <anisse@astier.eu");
+MODULE_DESCRIPTION("MSI all-in-one WMI hotkeys driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("wmi:" MSIWMI_EVENT_GUID);
+/*This one is useless if there is wmi-autoloading*/
+MODULE_ALIAS("dmi:bvnMICRO-STARINTERNATIONALCO.,LTD:*:svnMICRO-STARINTERNATIO"
+ "NALCO.,LTD:pnMS-6638:*:rnMS-7438:*:cvnMICRO-STARINTERNATIONALCO."
+ ",LTD:*");
+MODULE_PARM_DESC(pression_timeout,
+ "How much time interrupts are ignored between each pression");