1 files changed, 59 insertions, 137 deletions

diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c
index 02f3d4e9e66..e597de05e6c 100644
--- a/drivers/platform/x86/topstar-laptop.c
+++ b/drivers/platform/x86/topstar-laptop.c
@@ -16,8 +16,10 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
 
 #define ACPI_TOPSTAR_CLASS "topstar"
 
@@ -25,52 +27,38 @@ struct topstar_hkey {
 	struct input_dev *inputdev;
 };
 
-struct tps_key_entry {
-	u8 code;
-	u16 keycode;
-};
-
-static struct tps_key_entry topstar_keymap[] = {
-	{ 0x80, KEY_BRIGHTNESSUP },
-	{ 0x81, KEY_BRIGHTNESSDOWN },
-	{ 0x83, KEY_VOLUMEUP },
-	{ 0x84, KEY_VOLUMEDOWN },
-	{ 0x85, KEY_MUTE },
-	{ 0x86, KEY_SWITCHVIDEOMODE },
-	{ 0x87, KEY_F13 }, /* touchpad enable/disable key */
-	{ 0x88, KEY_WLAN },
-	{ 0x8a, KEY_WWW },
-	{ 0x8b, KEY_MAIL },
-	{ 0x8c, KEY_MEDIA },
-	{ 0x96, KEY_F14 }, /* G key? */
-	{ }
-};
-
-static struct tps_key_entry *tps_get_key_by_scancode(int code)
-{
-	struct tps_key_entry *key;
-
-	for (key = topstar_keymap; key->code; key++)
-		if (code == key->code)
-			return key;
-
-	return NULL;
-}
+static const struct key_entry topstar_keymap[] = {
+	{ KE_KEY, 0x80, { KEY_BRIGHTNESSUP } },
+	{ KE_KEY, 0x81, { KEY_BRIGHTNESSDOWN } },
+	{ KE_KEY, 0x83, { KEY_VOLUMEUP } },
+	{ KE_KEY, 0x84, { KEY_VOLUMEDOWN } },
+	{ KE_KEY, 0x85, { KEY_MUTE } },
+	{ KE_KEY, 0x86, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, 0x87, { KEY_F13 } }, /* touchpad enable/disable key */
+	{ KE_KEY, 0x88, { KEY_WLAN } },
+	{ KE_KEY, 0x8a, { KEY_WWW } },
+	{ KE_KEY, 0x8b, { KEY_MAIL } },
+	{ KE_KEY, 0x8c, { KEY_MEDIA } },
 
-static struct tps_key_entry *tps_get_key_by_keycode(int code)
-{
-	struct tps_key_entry *key;
+	/* Known non hotkey events don't handled or that we don't care yet */
+	{ KE_IGNORE, 0x82, }, /* backlight event */
+	{ KE_IGNORE, 0x8e, },
+	{ KE_IGNORE, 0x8f, },
+	{ KE_IGNORE, 0x90, },
 
-	for (key = topstar_keymap; key->code; key++)
-		if (code == key->keycode)
-			return key;
+	/*
+	 * 'G key' generate two event codes, convert to only
+	 * one event/key code for now, consider replacing by
+	 * a switch (3G switch - SW_3G?)
+	 */
+	{ KE_KEY, 0x96, { KEY_F14 } },
+	{ KE_KEY, 0x97, { KEY_F14 } },
 
-	return NULL;
-}
+	{ KE_END, 0 }
+};
 
 static void acpi_topstar_notify(struct acpi_device *device, u32 event)
 {
-	struct tps_key_entry *key;
 	static bool dup_evnt[2];
 	bool *dup;
 	struct topstar_hkey *hkey = acpi_driver_data(device);
@@ -85,39 +73,16 @@ static void acpi_topstar_notify(struct acpi_device *device, u32 event)
 		*dup = true;
 	}
 
-	/*
-	 * 'G key' generate two event codes, convert to only
-	 * one event/key code for now (3G switch?)
-	 */
-	if (event == 0x97)
-		event = 0x96;
-
-	key = tps_get_key_by_scancode(event);
-	if (key) {
-		input_report_key(hkey->inputdev, key->keycode, 1);
-		input_sync(hkey->inputdev);
-		input_report_key(hkey->inputdev, key->keycode, 0);
-		input_sync(hkey->inputdev);
-		return;
-	}
-
-	/* Known non hotkey events don't handled or that we don't care yet */
-	if (event == 0x8e || event == 0x8f || event == 0x90)
-		return;
-
-	pr_info("unknown event = 0x%02x\n", event);
+	if (!sparse_keymap_report_event(hkey->inputdev, event, 1, true))
+		pr_info("unknown event = 0x%02x\n", event);
 }
 
 static int acpi_topstar_fncx_switch(struct acpi_device *device, bool state)
 {
 	acpi_status status;
-	union acpi_object fncx_params[1] = {
-		{ .type = ACPI_TYPE_INTEGER }
-	};
-	struct acpi_object_list fncx_arg_list = { 1, &fncx_params[0] };
 
-	fncx_params[0].integer.value = state ? 0x86 : 0x87;
-	status = acpi_evaluate_object(device->handle, "FNCX", &fncx_arg_list, NULL);
+	status = acpi_execute_simple_method(device->handle, "FNCX",
+						state ? 0x86 : 0x87);
 	if (ACPI_FAILURE(status)) {
 		pr_err("Unable to switch FNCX notifications\n");
 		return -ENODEV;
@@ -126,63 +91,39 @@ static int acpi_topstar_fncx_switch(struct acpi_device *device, bool state)
 	return 0;
 }
 
-static int topstar_getkeycode(struct input_dev *dev, int scancode, int *keycode)
-{
-	struct tps_key_entry *key = tps_get_key_by_scancode(scancode);
-
-	if (!key)
-		return -EINVAL;
-
-	*keycode = key->keycode;
-	return 0;
-}
-
-static int topstar_setkeycode(struct input_dev *dev, int scancode, int keycode)
+static int acpi_topstar_init_hkey(struct topstar_hkey *hkey)
 {
-	struct tps_key_entry *key;
-	int old_keycode;
-
-	if (keycode < 0 || keycode > KEY_MAX)
-		return -EINVAL;
-
-	key = tps_get_key_by_scancode(scancode);
+	struct input_dev *input;
+	int error;
 
-	if (!key)
-		return -EINVAL;
-
-	old_keycode = key->keycode;
-	key->keycode = keycode;
-	set_bit(keycode, dev->keybit);
-	if (!tps_get_key_by_keycode(old_keycode))
-		clear_bit(old_keycode, dev->keybit);
-	return 0;
-}
+	input = input_allocate_device();
+	if (!input)
+		return -ENOMEM;
 
-static int acpi_topstar_init_hkey(struct topstar_hkey *hkey)
-{
-	struct tps_key_entry *key;
+	input->name = "Topstar Laptop extra buttons";
+	input->phys = "topstar/input0";
+	input->id.bustype = BUS_HOST;
 
-	hkey->inputdev = input_allocate_device();
-	if (!hkey->inputdev) {
-		pr_err("Unable to allocate input device\n");
-		return -ENODEV;
-	}
-	hkey->inputdev->name = "Topstar Laptop extra buttons";
-	hkey->inputdev->phys = "topstar/input0";
-	hkey->inputdev->id.bustype = BUS_HOST;
-	hkey->inputdev->getkeycode = topstar_getkeycode;
-	hkey->inputdev->setkeycode = topstar_setkeycode;
-	for (key = topstar_keymap; key->code; key++) {
-		set_bit(EV_KEY, hkey->inputdev->evbit);
-		set_bit(key->keycode, hkey->inputdev->keybit);
+	error = sparse_keymap_setup(input, topstar_keymap, NULL);
+	if (error) {
+		pr_err("Unable to setup input device keymap\n");
+		goto err_free_dev;
 	}
-	if (input_register_device(hkey->inputdev)) {
+
+	error = input_register_device(input);
+	if (error) {
 		pr_err("Unable to register input device\n");
-		input_free_device(hkey->inputdev);
-		return -ENODEV;
+		goto err_free_keymap;
 	}
 
+	hkey->inputdev = input;
 	return 0;
+
+ err_free_keymap:
+	sparse_keymap_free(input);
+ err_free_dev:
+	input_free_device(input);
+	return error;
 }
 
 static int acpi_topstar_add(struct acpi_device *device)
@@ -210,12 +151,13 @@ add_err:
 	return -ENODEV;
 }
 
-static int acpi_topstar_remove(struct acpi_device *device, int type)
+static int acpi_topstar_remove(struct acpi_device *device)
 {
 	struct topstar_hkey *tps_hkey = acpi_driver_data(device);
 
 	acpi_topstar_fncx_switch(device, false);
 
+	sparse_keymap_free(tps_hkey->inputdev);
 	input_unregister_device(tps_hkey->inputdev);
 	kfree(tps_hkey);
 
@@ -238,27 +180,7 @@ static struct acpi_driver acpi_topstar_driver = {
 		.notify = acpi_topstar_notify,
 	},
 };
-
-static int __init topstar_laptop_init(void)
-{
-	int ret;
-
-	ret = acpi_bus_register_driver(&acpi_topstar_driver);
-	if (ret < 0)
-		return ret;
-
-	printk(KERN_INFO "Topstar Laptop ACPI extras driver loaded\n");
-
-	return 0;
-}
-
-static void __exit topstar_laptop_exit(void)
-{
-	acpi_bus_unregister_driver(&acpi_topstar_driver);
-}
-
-module_init(topstar_laptop_init);
-module_exit(topstar_laptop_exit);
+module_acpi_driver(acpi_topstar_driver);
 
 MODULE_AUTHOR("Herton Ronaldo Krzesinski");
 MODULE_DESCRIPTION("Topstar Laptop ACPI Extras driver");