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authorIke Panhc <ike.pan@canonical.com>2010-12-13 18:00:38 +0800
committerMatthew Garrett <mjg@redhat.com>2011-01-07 17:03:46 -0500
commitf63409ae91ff94e2192dafbeb00c278ba299f80e (patch)
tree905c847ca636d8d15ae0fbfd4bde4d587c28ea12 /drivers/platform
parentc9f718d0c6b4cf8033aa0f5ac892d68ddfb865aa (diff)
downloadlinux-f63409ae91ff94e2192dafbeb00c278ba299f80e.tar.bz2
ideapad: add hotkey support
Hotkey enabled by this patch: Fn+F3: Video mode switch Fn+F5: software rfkill for wifi For some ideapad when push Fn+F3, hardware generates Super-P keys, those key will not be enabled by this patch. Thanks for Dave Hansen report the problem. If CONFIG_INPUT_SPARSEKMAP is not set, when building, you will have error message: ERROR: "sparse_keymap_setup" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "sparse_keymap_free" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "sparse_keymap_report_event" [drivers/platform/x86/ideapad-laptop.ko] undefined! To select INPUT_SPARSEKMAP solve this issue. Ref: http://lkml.org/lkml/2010/12/2/340 Signed-off-by: Ike Panhc <ike.pan@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/Kconfig1
-rw-r--r--drivers/platform/x86/ideapad-laptop.c72
2 files changed, 73 insertions, 0 deletions
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 4c7f8b926103..254c4ef6be35 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -226,6 +226,7 @@ config IDEAPAD_LAPTOP
tristate "Lenovo IdeaPad Laptop Extras"
depends on ACPI
depends on RFKILL
+ select INPUT_SPARSEKMAP
help
This is a driver for the rfkill switches on Lenovo IdeaPad netbooks.
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 49f207fc61d2..04b4f5b3114d 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -28,6 +28,8 @@
#include <acpi/acpi_drivers.h>
#include <linux/rfkill.h>
#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
#define IDEAPAD_DEV_CAMERA 0
#define IDEAPAD_DEV_WLAN 1
@@ -39,6 +41,7 @@ struct ideapad_private {
acpi_handle handle;
struct rfkill *rfk[5];
struct platform_device *platform_device;
+ struct input_dev *inputdev;
} *ideapad_priv;
static struct {
@@ -325,6 +328,66 @@ static void ideapad_platform_exit(void)
}
/* the above is platform device */
+/*
+ * input device
+ */
+static const struct key_entry ideapad_keymap[] = {
+ { KE_KEY, 0x06, { KEY_SWITCHVIDEOMODE } },
+ { KE_KEY, 0x0D, { KEY_WLAN } },
+ { KE_END, 0 },
+};
+
+static int __devinit ideapad_input_init(void)
+{
+ struct input_dev *inputdev;
+ int error;
+
+ inputdev = input_allocate_device();
+ if (!inputdev) {
+ pr_info("Unable to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ inputdev->name = "Ideapad extra buttons";
+ inputdev->phys = "ideapad/input0";
+ inputdev->id.bustype = BUS_HOST;
+ inputdev->dev.parent = &ideapad_priv->platform_device->dev;
+
+ error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL);
+ if (error) {
+ pr_err("Unable to setup input device keymap\n");
+ goto err_free_dev;
+ }
+
+ error = input_register_device(inputdev);
+ if (error) {
+ pr_err("Unable to register input device\n");
+ goto err_free_keymap;
+ }
+
+ ideapad_priv->inputdev = inputdev;
+ return 0;
+
+err_free_keymap:
+ sparse_keymap_free(inputdev);
+err_free_dev:
+ input_free_device(inputdev);
+ return error;
+}
+
+static void __devexit ideapad_input_exit(void)
+{
+ sparse_keymap_free(ideapad_priv->inputdev);
+ input_unregister_device(ideapad_priv->inputdev);
+ ideapad_priv->inputdev = NULL;
+}
+
+static void ideapad_input_report(unsigned long scancode)
+{
+ sparse_keymap_report_event(ideapad_priv->inputdev, scancode, 1, true);
+}
+/* the above is input device */
+
static const struct acpi_device_id ideapad_device_ids[] = {
{ "VPC2004", 0},
{ "", 0},
@@ -350,6 +413,10 @@ static int ideapad_acpi_add(struct acpi_device *adevice)
if (ret)
goto platform_failed;
+ ret = ideapad_input_init();
+ if (ret)
+ goto input_failed;
+
for (i = IDEAPAD_DEV_WLAN; i < IDEAPAD_DEV_KILLSW; i++) {
if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
ideapad_register_rfkill(adevice, i);
@@ -358,6 +425,8 @@ static int ideapad_acpi_add(struct acpi_device *adevice)
return 0;
+input_failed:
+ ideapad_platform_exit();
platform_failed:
kfree(priv);
return ret;
@@ -370,6 +439,7 @@ static int ideapad_acpi_remove(struct acpi_device *adevice, int type)
for (i = IDEAPAD_DEV_WLAN; i < IDEAPAD_DEV_KILLSW; i++)
ideapad_unregister_rfkill(adevice, i);
+ ideapad_input_exit();
ideapad_platform_exit();
dev_set_drvdata(&adevice->dev, NULL);
kfree(priv);
@@ -392,6 +462,8 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
if (test_bit(vpc_bit, &vpc1)) {
if (vpc_bit == 9)
ideapad_sync_rfk_state(adevice);
+ else
+ ideapad_input_report(vpc_bit);
}
}
}