Input: dvb-usb-remote - convert to new style of get/setkeycode

Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/media/dvb/dvb-usb/dvb-usb-remote.c

@@ -8,60 +8,71 @@
 #include "dvb-usb-common.h"
 #include <linux/usb/input.h>
 
-static int legacy_dvb_usb_getkeycode(struct input_dev *dev,
-				unsigned int scancode, unsigned int *keycode)
+static unsigned int
+legacy_dvb_usb_get_keymap_index(const struct input_keymap_entry *ke,
+				struct rc_map_table *keymap,
+				unsigned int keymap_size)
 {
-	struct dvb_usb_device *d = input_get_drvdata(dev);
+	unsigned int index;
+	unsigned int scancode;
 
-	struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
-	int i;
+	if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
+		index = ke->index;
+	} else {
+		if (input_scancode_to_scalar(ke, &scancode))
+			return keymap_size;
 
 		/* See if we can match the raw key code. */
-	for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
-		if (keymap[i].scancode == scancode) {
-			*keycode = keymap[i].keycode;
-			return 0;
-		}
+		for (index = 0; index < keymap_size; index++)
+			if (keymap[index].scancode == scancode)
+				break;
 
-	/*
-	 * If is there extra space, returns KEY_RESERVED,
-	 * otherwise, input core won't let legacy_dvb_usb_setkeycode
-	 * to work
-	 */
-	for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
-		if (keymap[i].keycode == KEY_RESERVED ||
-		    keymap[i].keycode == KEY_UNKNOWN) {
-			*keycode = KEY_RESERVED;
-			return 0;
+		/* See if there is an unused hole in the map */
+		if (index >= keymap_size) {
+			for (index = 0; index < keymap_size; index++) {
+				if (keymap[index].keycode == KEY_RESERVED ||
+				    keymap[index].keycode == KEY_UNKNOWN) {
+					break;
+				}
+			}
+		}
 	}
 
-	return -EINVAL;
+	return index;
 }
 
-static int legacy_dvb_usb_setkeycode(struct input_dev *dev,
-				unsigned int scancode, unsigned int keycode)
+static int legacy_dvb_usb_getkeycode(struct input_dev *dev,
+				     struct input_keymap_entry *ke)
 {
 	struct dvb_usb_device *d = input_get_drvdata(dev);
-
 	struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
-	int i;
+	unsigned int keymap_size = d->props.rc.legacy.rc_map_size;
+	unsigned int index;
 
-	/* Search if it is replacing an existing keycode */
-	for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
-		if (keymap[i].scancode == scancode) {
-			keymap[i].keycode = keycode;
-			return 0;
-		}
+	index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size);
+	if (index >= keymap_size)
+		return -EINVAL;
+
+	ke->keycode = keymap[index].keycode;
+	if (ke->keycode == KEY_UNKNOWN)
+		ke->keycode = KEY_RESERVED;
+	ke->len = sizeof(keymap[index].scancode);
+	memcpy(&ke->scancode, &keymap[index].scancode, ke->len);
+	ke->index = index;
 
-	/* Search if is there a clean entry. If so, use it */
-	for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
-		if (keymap[i].keycode == KEY_RESERVED ||
-		    keymap[i].keycode == KEY_UNKNOWN) {
-			keymap[i].scancode = scancode;
-			keymap[i].keycode = keycode;
 	return 0;
-		}
+}
 
+static int legacy_dvb_usb_setkeycode(struct input_dev *dev,
+				     const struct input_keymap_entry *ke,
+				     unsigned int *old_keycode)
+{
+	struct dvb_usb_device *d = input_get_drvdata(dev);
+	struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
+	unsigned int keymap_size = d->props.rc.legacy.rc_map_size;
+	unsigned int index;
+
+	index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size);
 	/*
 	 * FIXME: Currently, it is not possible to increase the size of
 	 * scancode table. For it to happen, one possibility
@@ -69,8 +80,24 @@ static int legacy_dvb_usb_setkeycode(struct input_dev *dev,
 	 * copying data, appending the new key on it, and freeing
 	 * the old one - or maybe just allocating some spare space
 	 */
-
+	if (index >= keymap_size)
 		return -EINVAL;
+
+	*old_keycode = keymap[index].keycode;
+	keymap->keycode = ke->keycode;
+	__set_bit(ke->keycode, dev->keybit);
+
+	if (*old_keycode != KEY_RESERVED) {
+		__clear_bit(*old_keycode, dev->keybit);
+		for (index = 0; index < keymap_size; index++) {
+			if (keymap[index].keycode == *old_keycode) {
+				__set_bit(*old_keycode, dev->keybit);
+				break;
+			}
+		}
+	}
+
+	return 0;
 }
 
 /* Remote-control poll function - called every dib->rc_query_interval ms to see
@@ -171,8 +198,8 @@ static int legacy_dvb_usb_remote_init(struct dvb_usb_device *d)
 	d->input_dev = input_dev;
 	d->rc_dev = NULL;
 
-	input_dev->getkeycode = legacy_dvb_usb_getkeycode;
-	input_dev->setkeycode = legacy_dvb_usb_setkeycode;
+	input_dev->getkeycode_new = legacy_dvb_usb_getkeycode;
+	input_dev->setkeycode_new = legacy_dvb_usb_setkeycode;
 
 	/* set the bits for the keys */
 	deb_rc("key map size: %d\n", d->props.rc.legacy.rc_map_size);