ACPI: thinkpad-acpi: register input device

Register an input device to send input events to userspace.

This patch is based on a patch by Richard Hughes <hughsient@gmail.com>.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Richard Hughes <hughsient@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 78ea4c88d560..00f1bd73df8f 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -39,6 +39,7 @@
 #include <linux/platform_device.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
+#include <linux/input.h>
 #include <asm/uaccess.h>
 
 #include <linux/dmi.h>
@@ -48,6 +49,7 @@
 #include <acpi/acpi_drivers.h>
 #include <acpi/acnamesp.h>
 
+#include <linux/pci_ids.h>
 
 /****************************************************************************
  * Main driver
@@ -98,6 +100,11 @@ static const char *str_supported(int is_supported);
 #define vdbg_printk(a_dbg_level, format, arg...)
 #endif
 
+/* Input IDs */
+#define TPACPI_HKEY_INPUT_VENDOR        PCI_VENDOR_ID_IBM
+#define TPACPI_HKEY_INPUT_PRODUCT       0x5054 /* "TP" */
+#define TPACPI_HKEY_INPUT_VERSION       0x4101
+
 /* ACPI HIDs */
 #define IBM_HKEY_HID    "IBM0068"
 #define IBM_PCI_HID     "PNP0A03"
@@ -161,6 +168,7 @@ static int parse_strtoul(const char *buf, unsigned long max,
 static struct platform_device *tpacpi_pdev;
 static struct class_device *tpacpi_hwmon;
 static struct platform_driver tpacpi_pdriver;
+static struct input_dev *tpacpi_inputdev;
 static int tpacpi_create_driver_attributes(struct device_driver *drv);
 static void tpacpi_remove_driver_attributes(struct device_driver *drv);
 
@@ -233,6 +241,7 @@ static struct {
         u16 light_status:1;
         u16 wan:1;
         u16 fan_ctrl_status_undef:1;
+        u16 input_device_registered:1;
 } tp_features;
 
 static struct list_head tpacpi_all_drivers;