asus-nb-wmi: Asus Notebooks WMI Driver

Introduce a new driver for Asus Notebooks shipped with
a WMI device instead of the old ACPI device. The WMI
device is almost the same as the one present in Eee PC,
but the event guid and the keymap are different.

The keymap comes from asus-laptop module.

On Asus notebooks, when you call the WMI device, you always
need a 64bit buffer, even if you only want to get the state
of a device (tested on a G73).

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

3 files changed, 114 insertions, 1 deletions

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 7fde7ba01ab0..45f4d63c7939 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -465,11 +465,25 @@ config ASUS_WMI
         select LEDS_CLASS
         select NEW_LEDS
         ---help---
-          Say Y here if you have a WMI aware Asus laptop (like Eee PCs).
+          Say Y here if you have a WMI aware Asus laptop (like Eee PCs or new
+          Asus Notebooks).
 
           To compile this driver as a module, choose M here: the module will
           be called asus-wmi.
 
+config ASUS_NB_WMI
+        tristate "Asus Notebook WMI Driver (EXPERIMENTAL)"
+        depends on ASUS_WMI
+        ---help---
+          This is a driver for newer Asus notebooks. It adds extra features
+          like wireless radio and bluetooth control, leds, hotkeys, backlight...
+
+          For more informations, see
+          <file:Documentation/ABI/testing/sysfs-platform-asus-wmi>
+
+          If you have an ACPI-WMI compatible Asus Notebook, say Y or M
+          here.
+
 config EEEPC_WMI
         tristate "Eee PC WMI Driver (EXPERIMENTAL)"
         depends on ASUS_WMI
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index f9c83f48c922..0f7b23c0714b 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -4,6 +4,7 @@
 #
 obj-$(CONFIG_ASUS_LAPTOP)       += asus-laptop.o
 obj-$(CONFIG_ASUS_WMI)          += asus-wmi.o
+obj-$(CONFIG_ASUS_NB_WMI)       += asus-nb-wmi.o
 obj-$(CONFIG_EEEPC_LAPTOP)      += eeepc-laptop.o
 obj-$(CONFIG_EEEPC_WMI)         += eeepc-wmi.o
 obj-$(CONFIG_MSI_LAPTOP)        += msi-laptop.o
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
new file mode 100644
index 000000000000..0580d99b0798
--- /dev/null
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -0,0 +1,98 @@
+/*
+ * Asus Notebooks WMI hotkey driver
+ *
+ * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com>
+ *
+ *  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
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+
+#include "asus-wmi.h"
+
+#define ASUS_NB_WMI_FILE        "asus-nb-wmi"
+
+MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>");
+MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver");
+MODULE_LICENSE("GPL");
+
+#define ASUS_NB_WMI_EVENT_GUID  "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"
+
+MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);
+
+static const struct key_entry asus_nb_wmi_keymap[] = {
+        { KE_KEY, 0x30, { KEY_VOLUMEUP } },
+        { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
+        { KE_KEY, 0x32, { KEY_MUTE } },
+        { KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
+        { KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
+        { KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
+        { KE_KEY, 0x41, { KEY_NEXTSONG } },
+        { KE_KEY, 0x43, { KEY_STOPCD } },
+        { KE_KEY, 0x45, { KEY_PLAYPAUSE } },
+        { KE_KEY, 0x4c, { KEY_MEDIA } },
+        { KE_KEY, 0x50, { KEY_EMAIL } },
+        { KE_KEY, 0x51, { KEY_WWW } },
+        { KE_KEY, 0x55, { KEY_CALC } },
+        { KE_KEY, 0x5C, { KEY_F15 } },  /* Power Gear key */
+        { KE_KEY, 0x5D, { KEY_WLAN } },
+        { KE_KEY, 0x5E, { KEY_WLAN } },
+        { KE_KEY, 0x5F, { KEY_WLAN } },
+        { KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
+        { KE_KEY, 0x7E, { KEY_BLUETOOTH } },
+        { KE_KEY, 0x7D, { KEY_BLUETOOTH } },
+        { KE_KEY, 0x82, { KEY_CAMERA } },
+        { KE_KEY, 0x88, { KEY_RFKILL  } },
+        { KE_KEY, 0x8A, { KEY_PROG1 } },
+        { KE_KEY, 0x95, { KEY_MEDIA } },
+        { KE_KEY, 0x99, { KEY_PHONE } },
+        { KE_KEY, 0xb5, { KEY_CALC } },
+        { KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
+        { KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },
+        { KE_END, 0},
+};
+
+static struct asus_wmi_driver asus_nb_wmi_driver = {
+        .name = ASUS_NB_WMI_FILE,
+        .owner = THIS_MODULE,
+        .event_guid = ASUS_NB_WMI_EVENT_GUID,
+        .keymap = asus_nb_wmi_keymap,
+        .input_name = "Asus WMI hotkeys",
+        .input_phys = ASUS_NB_WMI_FILE "/input0",
+};
+
+
+static int __init asus_nb_wmi_init(void)
+{
+        return asus_wmi_register_driver(&asus_nb_wmi_driver);
+}
+
+static void __exit asus_nb_wmi_exit(void)
+{
+        asus_wmi_unregister_driver(&asus_nb_wmi_driver);
+}
+
+module_init(asus_nb_wmi_init);
+module_exit(asus_nb_wmi_exit);