[media] ir-core: make struct rc_dev the primary interface

This patch merges the ir_input_dev and ir_dev_props structs into a single
struct called rc_dev. The drivers and various functions in rc-core used
by the drivers are also changed to use rc_dev as the primary interface
when dealing with rc-core.

This means that the input_dev is abstracted away from the drivers which
is necessary if we ever want to support multiple input devs per rc device.

The new API is similar to what the input subsystem uses, i.e:
rc_device_alloc()
rc_device_free()
rc_device_register()
rc_device_unregister()

[mchehab@redhat.com: Fix compilation on mceusb and cx231xx, due to merge conflicts]
Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Jarod Wilson <jarod@redhat.com>
Tested-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 274 insertions, 338 deletions

diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 67a6bd5..5b67eea 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -20,11 +20,6 @@
 #include <linux/device.h>
 #include "rc-core-priv.h"
 
-#define IRRCV_NUM_DEVICES	256
-
-/* bit array to represent IR sysfs device number */
-static unsigned long ir_core_dev_number;
-
 /* Sizes are in bytes, 256 bytes allows for 32 entries on x64 */
 #define IR_TAB_MIN_SIZE	256
 #define IR_TAB_MAX_SIZE	8192
@@ -36,12 +31,6 @@ static unsigned long ir_core_dev_number;
 static LIST_HEAD(rc_map_list);
 static DEFINE_SPINLOCK(rc_map_lock);
 
-/* Forward declarations */
-static int ir_register_class(struct input_dev *input_dev);
-static void ir_unregister_class(struct input_dev *input_dev);
-static int ir_register_input(struct input_dev *input_dev);
-
-
 static struct rc_keymap *seek_rc_map(const char *name)
 {
 	struct rc_keymap *map = NULL;
@@ -127,7 +116,7 @@ static struct rc_keymap empty_map = {
  * @return:	zero on success or a negative error code
  *
  * This routine will initialize the ir_scancode_table and will allocate
- * memory to hold at least the specified number elements.
+ * memory to hold at least the specified number of elements.
  */
 static int ir_create_table(struct ir_scancode_table *rc_tab,
 			   const char *name, u64 ir_type, size_t size)
@@ -209,16 +198,16 @@ static int ir_resize_table(struct ir_scancode_table *rc_tab, gfp_t gfp_flags)
 
 /**
  * ir_update_mapping() - set a keycode in the scancode->keycode table
- * @dev:	the struct input_dev device descriptor
+ * @dev:	the struct rc_dev device descriptor
  * @rc_tab:	scancode table to be adjusted
  * @index:	index of the mapping that needs to be updated
  * @keycode:	the desired keycode
  * @return:	previous keycode assigned to the mapping
  *
- * This routine is used to update scancode->keycopde mapping at given
+ * This routine is used to update scancode->keycode mapping at given
  * position.
  */
-static unsigned int ir_update_mapping(struct input_dev *dev,
+static unsigned int ir_update_mapping(struct rc_dev *dev,
 				      struct ir_scancode_table *rc_tab,
 				      unsigned int index,
 				      unsigned int new_keycode)
@@ -239,16 +228,16 @@ static unsigned int ir_update_mapping(struct input_dev *dev,
 			   old_keycode == KEY_RESERVED ? "New" : "Replacing",
 			   rc_tab->scan[index].scancode, new_keycode);
 		rc_tab->scan[index].keycode = new_keycode;
-		__set_bit(new_keycode, dev->keybit);
+		__set_bit(new_keycode, dev->input_dev->keybit);
 	}
 
 	if (old_keycode != KEY_RESERVED) {
 		/* A previous mapping was updated... */
-		__clear_bit(old_keycode, dev->keybit);
+		__clear_bit(old_keycode, dev->input_dev->keybit);
 		/* ... but another scancode might use the same keycode */
 		for (i = 0; i < rc_tab->len; i++) {
 			if (rc_tab->scan[i].keycode == old_keycode) {
-				__set_bit(old_keycode, dev->keybit);
+				__set_bit(old_keycode, dev->input_dev->keybit);
 				break;
 			}
 		}
@@ -262,7 +251,7 @@ static unsigned int ir_update_mapping(struct input_dev *dev,
 
 /**
  * ir_establish_scancode() - set a keycode in the scancode->keycode table
- * @ir_dev:	the struct ir_input_dev device descriptor
+ * @dev:	the struct rc_dev device descriptor
  * @rc_tab:	scancode table to be searched
  * @scancode:	the desired scancode
  * @resize:	controls whether we allowed to resize the table to
@@ -274,7 +263,7 @@ static unsigned int ir_update_mapping(struct input_dev *dev,
  * If scancode is not yet present the routine will allocate a new slot
  * for it.
  */
-static unsigned int ir_establish_scancode(struct ir_input_dev *ir_dev,
+static unsigned int ir_establish_scancode(struct rc_dev *dev,
 					  struct ir_scancode_table *rc_tab,
 					  unsigned int scancode,
 					  bool resize)
@@ -286,10 +275,11 @@ static unsigned int ir_establish_scancode(struct ir_input_dev *ir_dev,
 	 * all bits for the complete IR code. In general, they provide only
 	 * the command part of the IR code. Yet, as it is possible to replace
 	 * the provided IR with another one, it is needed to allow loading
-	 * IR tables from other remotes. So,
+	 * IR tables from other remotes. So, we support specifying a mask to
+	 * indicate the valid bits of the scancodes.
 	 */
-	if (ir_dev->props && ir_dev->props->scanmask)
-		scancode &= ir_dev->props->scanmask;
+	if (dev->scanmask)
+		scancode &= dev->scanmask;
 
 	/* First check if we already have a mapping for this ir command */
 	for (i = 0; i < rc_tab->len; i++) {
@@ -320,19 +310,19 @@ static unsigned int ir_establish_scancode(struct ir_input_dev *ir_dev,
 
 /**
  * ir_setkeycode() - set a keycode in the scancode->keycode table
- * @dev:	the struct input_dev device descriptor
+ * @idev:	the struct input_dev device descriptor
  * @scancode:	the desired scancode
  * @keycode:	result
  * @return:	-EINVAL if the keycode could not be inserted, otherwise zero.
  *
  * This routine is used to handle evdev EVIOCSKEY ioctl.
  */
-static int ir_setkeycode(struct input_dev *dev,
+static int ir_setkeycode(struct input_dev *idev,
 			 const struct input_keymap_entry *ke,
 			 unsigned int *old_keycode)
 {
-	struct ir_input_dev *ir_dev = input_get_drvdata(dev);
-	struct ir_scancode_table *rc_tab = &ir_dev->rc_tab;
+	struct rc_dev *rdev = input_get_drvdata(idev);
+	struct ir_scancode_table *rc_tab = &rdev->rc_tab;
 	unsigned int index;
 	unsigned int scancode;
 	int retval;
@@ -351,14 +341,14 @@ static int ir_setkeycode(struct input_dev *dev,
 		if (retval)
 			goto out;
 
-		index = ir_establish_scancode(ir_dev, rc_tab, scancode, true);
+		index = ir_establish_scancode(rdev, rc_tab, scancode, true);
 		if (index >= rc_tab->len) {
 			retval = -ENOMEM;
 			goto out;
 		}
 	}
 
-	*old_keycode = ir_update_mapping(dev, rc_tab, index, ke->keycode);
+	*old_keycode = ir_update_mapping(rdev, rc_tab, index, ke->keycode);
 
 out:
 	spin_unlock_irqrestore(&rc_tab->lock, flags);
@@ -367,22 +357,22 @@ out:
 
 /**
  * ir_setkeytable() - sets several entries in the scancode->keycode table
- * @dev:	the struct input_dev device descriptor
+ * @dev:	the struct rc_dev device descriptor
  * @to:		the struct ir_scancode_table to copy entries to
  * @from:	the struct ir_scancode_table to copy entries from
  * @return:	-ENOMEM if all keycodes could not be inserted, otherwise zero.
  *
  * This routine is used to handle table initialization.
  */
-static int ir_setkeytable(struct ir_input_dev *ir_dev,
+static int ir_setkeytable(struct rc_dev *dev,
 			  const struct ir_scancode_table *from)
 {
-	struct ir_scancode_table *rc_tab = &ir_dev->rc_tab;
+	struct ir_scancode_table *rc_tab = &dev->rc_tab;
 	unsigned int i, index;
 	int rc;
 
-	rc = ir_create_table(&ir_dev->rc_tab,
-			     from->name, from->ir_type, from->size);
+	rc = ir_create_table(rc_tab, from->name,
+			     from->ir_type, from->size);
 	if (rc)
 		return rc;
 
@@ -390,14 +380,14 @@ static int ir_setkeytable(struct ir_input_dev *ir_dev,
 		   rc_tab->size, rc_tab->alloc);
 
 	for (i = 0; i < from->size; i++) {
-		index = ir_establish_scancode(ir_dev, rc_tab,
+		index = ir_establish_scancode(dev, rc_tab,
 					      from->scan[i].scancode, false);
 		if (index >= rc_tab->len) {
 			rc = -ENOMEM;
 			break;
 		}
 
-		ir_update_mapping(ir_dev->input_dev, rc_tab, index,
+		ir_update_mapping(dev, rc_tab, index,
 				  from->scan[i].keycode);
 	}
 
@@ -409,7 +399,7 @@ static int ir_setkeytable(struct ir_input_dev *ir_dev,
 
 /**
  * ir_lookup_by_scancode() - locate mapping by scancode
- * @rc_tab:	the &struct ir_scancode_table to search
+ * @rc_tab:	the struct ir_scancode_table to search
  * @scancode:	scancode to look for in the table
  * @return:	index in the table, -1U if not found
  *
@@ -438,18 +428,18 @@ static unsigned int ir_lookup_by_scancode(const struct ir_scancode_table *rc_tab
 
 /**
  * ir_getkeycode() - get a keycode from the scancode->keycode table
- * @dev:	the struct input_dev device descriptor
+ * @idev:	the struct input_dev device descriptor
  * @scancode:	the desired scancode
  * @keycode:	used to return the keycode, if found, or KEY_RESERVED
  * @return:	always returns zero.
  *
  * This routine is used to handle evdev EVIOCGKEY ioctl.
  */
-static int ir_getkeycode(struct input_dev *dev,
+static int ir_getkeycode(struct input_dev *idev,
 			 struct input_keymap_entry *ke)
 {
-	struct ir_input_dev *ir_dev = input_get_drvdata(dev);
-	struct ir_scancode_table *rc_tab = &ir_dev->rc_tab;
+	struct rc_dev *rdev = input_get_drvdata(idev);
+	struct ir_scancode_table *rc_tab = &rdev->rc_tab;
 	struct ir_scancode *entry;
 	unsigned long flags;
 	unsigned int index;
@@ -492,18 +482,17 @@ out:
 
 /**
  * ir_g_keycode_from_table() - gets the keycode that corresponds to a scancode
- * @input_dev:	the struct input_dev descriptor of the device
- * @scancode:	the scancode that we're seeking
+ * @dev:	the struct rc_dev descriptor of the device
+ * @scancode:	the scancode to look for
+ * @return:	the corresponding keycode, or KEY_RESERVED
  *
- * This routine is used by the input routines when a key is pressed at the
- * IR. The scancode is received and needs to be converted into a keycode.
- * If the key is not found, it returns KEY_RESERVED. Otherwise, returns the
- * corresponding keycode from the table.
+ * This routine is used by drivers which need to convert a scancode to a
+ * keycode. Normally it should not be used since drivers should have no
+ * interest in keycodes.
  */
-u32 ir_g_keycode_from_table(struct input_dev *dev, u32 scancode)
+u32 ir_g_keycode_from_table(struct rc_dev *dev, u32 scancode)
 {
-	struct ir_input_dev *ir_dev = input_get_drvdata(dev);
-	struct ir_scancode_table *rc_tab = &ir_dev->rc_tab;
+	struct ir_scancode_table *rc_tab = &dev->rc_tab;
 	unsigned int keycode;
 	unsigned int index;
 	unsigned long flags;
@@ -518,7 +507,7 @@ u32 ir_g_keycode_from_table(struct input_dev *dev, u32 scancode)
 
 	if (keycode != KEY_RESERVED)
 		IR_dprintk(1, "%s: scancode 0x%04x keycode 0x%02x\n",
-			   dev->name, scancode, keycode);
+			   dev->input_name, scancode, keycode);
 
 	return keycode;
 }
@@ -526,50 +515,49 @@ EXPORT_SYMBOL_GPL(ir_g_keycode_from_table);
 
 /**
  * ir_do_keyup() - internal function to signal the release of a keypress
- * @ir:         the struct ir_input_dev descriptor of the device
+ * @dev:	the struct rc_dev descriptor of the device
  *
  * This function is used internally to release a keypress, it must be
  * called with keylock held.
  */
-static void ir_do_keyup(struct ir_input_dev *ir)
+static void ir_do_keyup(struct rc_dev *dev)
 {
-	if (!ir->keypressed)
+	if (!dev->keypressed)
 		return;
 
-	IR_dprintk(1, "keyup key 0x%04x\n", ir->last_keycode);
-	input_report_key(ir->input_dev, ir->last_keycode, 0);
-	input_sync(ir->input_dev);
-	ir->keypressed = false;
+	IR_dprintk(1, "keyup key 0x%04x\n", dev->last_keycode);
+	input_report_key(dev->input_dev, dev->last_keycode, 0);
+	input_sync(dev->input_dev);
+	dev->keypressed = false;
 }
 
 /**
- * ir_keyup() - generates input event to signal the release of a keypress
- * @dev:        the struct input_dev descriptor of the device
+ * ir_keyup() - signals the release of a keypress
+ * @dev:	the struct rc_dev descriptor of the device
  *
  * This routine is used to signal that a key has been released on the
  * remote control.
  */
-void ir_keyup(struct input_dev *dev)
+void ir_keyup(struct rc_dev *dev)
 {
 	unsigned long flags;
-	struct ir_input_dev *ir = input_get_drvdata(dev);
 
-	spin_lock_irqsave(&ir->keylock, flags);
-	ir_do_keyup(ir);
-	spin_unlock_irqrestore(&ir->keylock, flags);
+	spin_lock_irqsave(&dev->keylock, flags);
+	ir_do_keyup(dev);
+	spin_unlock_irqrestore(&dev->keylock, flags);
 }
 EXPORT_SYMBOL_GPL(ir_keyup);
 
 /**
  * ir_timer_keyup() - generates a keyup event after a timeout
- * @cookie:     a pointer to struct ir_input_dev passed to setup_timer()
+ * @cookie:	a pointer to the struct rc_dev for the device
  *
  * This routine will generate a keyup event some time after a keydown event
  * is generated when no further activity has been detected.
  */
 static void ir_timer_keyup(unsigned long cookie)
 {
-	struct ir_input_dev *ir = (struct ir_input_dev *)cookie;
+	struct rc_dev *dev = (struct rc_dev *)cookie;
 	unsigned long flags;
 
 	/*
@@ -582,43 +570,42 @@ static void ir_timer_keyup(unsigned long cookie)
 	 * to allow the input subsystem to do its auto-repeat magic or
 	 * a keyup event might follow immediately after the keydown.
 	 */
-	spin_lock_irqsave(&ir->keylock, flags);
-	if (time_is_before_eq_jiffies(ir->keyup_jiffies))
-		ir_do_keyup(ir);
-	spin_unlock_irqrestore(&ir->keylock, flags);
+	spin_lock_irqsave(&dev->keylock, flags);
+	if (time_is_before_eq_jiffies(dev->keyup_jiffies))
+		ir_do_keyup(dev);
+	spin_unlock_irqrestore(&dev->keylock, flags);
 }
 
 /**
- * ir_repeat() - notifies the IR core that a key is still pressed
- * @dev:        the struct input_dev descriptor of the device
+ * ir_repeat() - signals that a key is still pressed
+ * @dev:	the struct rc_dev descriptor of the device
  *
  * This routine is used by IR decoders when a repeat message which does
  * not include the necessary bits to reproduce the scancode has been
  * received.
  */
-void ir_repeat(struct input_dev *dev)
+void ir_repeat(struct rc_dev *dev)
 {
 	unsigned long flags;
-	struct ir_input_dev *ir = input_get_drvdata(dev);
 
-	spin_lock_irqsave(&ir->keylock, flags);
+	spin_lock_irqsave(&dev->keylock, flags);
 
-	input_event(dev, EV_MSC, MSC_SCAN, ir->last_scancode);
+	input_event(dev->input_dev, EV_MSC, MSC_SCAN, dev->last_scancode);
 
-	if (!ir->keypressed)
+	if (!dev->keypressed)
 		goto out;
 
-	ir->keyup_jiffies = jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT);
-	mod_timer(&ir->timer_keyup, ir->keyup_jiffies);
+	dev->keyup_jiffies = jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT);
+	mod_timer(&dev->timer_keyup, dev->keyup_jiffies);
 
 out:
-	spin_unlock_irqrestore(&ir->keylock, flags);
+	spin_unlock_irqrestore(&dev->keylock, flags);
 }
 EXPORT_SYMBOL_GPL(ir_repeat);
 
 /**
  * ir_do_keydown() - internal function to process a keypress
- * @dev:        the struct input_dev descriptor of the device
+ * @dev:	the struct rc_dev descriptor of the device
  * @scancode:   the scancode of the keypress
  * @keycode:    the keycode of the keypress
  * @toggle:     the toggle value of the keypress
@@ -626,231 +613,96 @@ EXPORT_SYMBOL_GPL(ir_repeat);
  * This function is used internally to register a keypress, it must be
  * called with keylock held.
  */
-static void ir_do_keydown(struct input_dev *dev, int scancode,
+static void ir_do_keydown(struct rc_dev *dev, int scancode,
 			  u32 keycode, u8 toggle)
 {
-	struct ir_input_dev *ir = input_get_drvdata(dev);
-
-	input_event(dev, EV_MSC, MSC_SCAN, scancode);
+	input_event(dev->input_dev, EV_MSC, MSC_SCAN, scancode);
 
 	/* Repeat event? */
-	if (ir->keypressed &&
-	    ir->last_scancode == scancode &&
-	    ir->last_toggle == toggle)
+	if (dev->keypressed &&
+	    dev->last_scancode == scancode &&
+	    dev->last_toggle == toggle)
 		return;
 
 	/* Release old keypress */
-	ir_do_keyup(ir);
+	ir_do_keyup(dev);
 
-	ir->last_scancode = scancode;
-	ir->last_toggle = toggle;
-	ir->last_keycode = keycode;
+	dev->last_scancode = scancode;
+	dev->last_toggle = toggle;
+	dev->last_keycode = keycode;
 
 	if (keycode == KEY_RESERVED)
 		return;
 
 	/* Register a keypress */
-	ir->keypressed = true;
+	dev->keypressed = true;
 	IR_dprintk(1, "%s: key down event, key 0x%04x, scancode 0x%04x\n",
-		   dev->name, keycode, scancode);
-	input_report_key(dev, ir->last_keycode, 1);
-	input_sync(dev);
+		   dev->input_name, keycode, scancode);
+	input_report_key(dev->input_dev, dev->last_keycode, 1);
+	input_sync(dev->input_dev);
 }
 
 /**
  * ir_keydown() - generates input event for a key press
- * @dev:        the struct input_dev descriptor of the device
+ * @dev:	the struct rc_dev descriptor of the device
  * @scancode:   the scancode that we're seeking
  * @toggle:     the toggle value (protocol dependent, if the protocol doesn't
  *              support toggle values, this should be set to zero)
  *
- * This routine is used by the input routines when a key is pressed at the
- * IR. It gets the keycode for a scancode and reports an input event via
- * input_report_key().
+ * This routine is used to signal that a key has been pressed on the
+ * remote control.
  */
-void ir_keydown(struct input_dev *dev, int scancode, u8 toggle)
+void ir_keydown(struct rc_dev *dev, int scancode, u8 toggle)
 {
 	unsigned long flags;
-	struct ir_input_dev *ir = input_get_drvdata(dev);
 	u32 keycode = ir_g_keycode_from_table(dev, scancode);
 
-	spin_lock_irqsave(&ir->keylock, flags);
+	spin_lock_irqsave(&dev->keylock, flags);
 	ir_do_keydown(dev, scancode, keycode, toggle);
 
-	if (ir->keypressed) {
-		ir->keyup_jiffies = jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT);
-		mod_timer(&ir->timer_keyup, ir->keyup_jiffies);
+	if (dev->keypressed) {
+		dev->keyup_jiffies = jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT);
+		mod_timer(&dev->timer_keyup, dev->keyup_jiffies);
 	}
-	spin_unlock_irqrestore(&ir->keylock, flags);
+	spin_unlock_irqrestore(&dev->keylock, flags);
 }
 EXPORT_SYMBOL_GPL(ir_keydown);
 
 /**
  * ir_keydown_notimeout() - generates input event for a key press without
  *                          an automatic keyup event at a later time
- * @dev:        the struct input_dev descriptor of the device
+ * @dev:	the struct rc_dev descriptor of the device
  * @scancode:   the scancode that we're seeking
  * @toggle:     the toggle value (protocol dependent, if the protocol doesn't
  *              support toggle values, this should be set to zero)
  *
- * This routine is used by the input routines when a key is pressed at the
- * IR. It gets the keycode for a scancode and reports an input event via
- * input_report_key(). The driver must manually call ir_keyup() at a later
- * stage.
+ * This routine is used to signal that a key has been pressed on the
+ * remote control. The driver must manually call ir_keyup() at a later stage.
  */
-void ir_keydown_notimeout(struct input_dev *dev, int scancode, u8 toggle)
+void ir_keydown_notimeout(struct rc_dev *dev, int scancode, u8 toggle)
 {
 	unsigned long flags;
-	struct ir_input_dev *ir = input_get_drvdata(dev);
 	u32 keycode = ir_g_keycode_from_table(dev, scancode);
 
-	spin_lock_irqsave(&ir->keylock, flags);
+	spin_lock_irqsave(&dev->keylock, flags);
 	ir_do_keydown(dev, scancode, keycode, toggle);
-	spin_unlock_irqrestore(&ir->keylock, flags);
+	spin_unlock_irqrestore(&dev->keylock, flags);
 }
 EXPORT_SYMBOL_GPL(ir_keydown_notimeout);
 
-static int ir_open(struct input_dev *input_dev)
-{
-	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
-
-	return ir_dev->props->open(ir_dev->props->priv);
-}
-
-static void ir_close(struct input_dev *input_dev)
-{
-	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
-
-	ir_dev->props->close(ir_dev->props->priv);
-}
-
-/**
- * __ir_input_register() - sets the IR keycode table and add the handlers
- *			    for keymap table get/set
- * @input_dev:	the struct input_dev descriptor of the device
- * @rc_tab:	the struct ir_scancode_table table of scancode/keymap
- *
- * This routine is used to initialize the input infrastructure
- * to work with an IR.
- * It will register the input/evdev interface for the device and
- * register the syfs code for IR class
- */
-int __ir_input_register(struct input_dev *input_dev,
-		      const struct ir_scancode_table *rc_tab,
-		      struct ir_dev_props *props,
-		      const char *driver_name)
+static int ir_open(struct input_dev *idev)
 {
-	struct ir_input_dev *ir_dev;
-	int rc;
-
-	if (rc_tab->scan == NULL || !rc_tab->size)
-		return -EINVAL;
-
-	ir_dev = kzalloc(sizeof(*ir_dev), GFP_KERNEL);
-	if (!ir_dev)
-		return -ENOMEM;
-
-	ir_dev->driver_name = kasprintf(GFP_KERNEL, "%s", driver_name);
-	if (!ir_dev->driver_name) {
-		rc = -ENOMEM;
-		goto out_dev;
-	}
-
-	input_dev->getkeycode_new = ir_getkeycode;
-	input_dev->setkeycode_new = ir_setkeycode;
-	input_set_drvdata(input_dev, ir_dev);
-	ir_dev->input_dev = input_dev;
-
-	spin_lock_init(&ir_dev->rc_tab.lock);
-	spin_lock_init(&ir_dev->keylock);
-	setup_timer(&ir_dev->timer_keyup, ir_timer_keyup, (unsigned long)ir_dev);
-
-	if (props) {
-		ir_dev->props = props;
-		if (props->open)
-			input_dev->open = ir_open;
-		if (props->close)
-			input_dev->close = ir_close;
-	}
-
-	set_bit(EV_KEY, input_dev->evbit);
-	set_bit(EV_REP, input_dev->evbit);
-	set_bit(EV_MSC, input_dev->evbit);
-	set_bit(MSC_SCAN, input_dev->mscbit);
-
-	rc = ir_setkeytable(ir_dev, rc_tab);
-	if (rc)
-		goto out_name;
+	struct rc_dev *rdev = input_get_drvdata(idev);
 
-	rc = ir_register_class(input_dev);
-	if (rc < 0)
-		goto out_table;
-
-	if (ir_dev->props)
-		if (ir_dev->props->driver_type == RC_DRIVER_IR_RAW) {
-			rc = ir_raw_event_register(input_dev);
-			if (rc < 0)
-				goto out_event;
-		}
-
-	rc = ir_register_input(input_dev);
-	if (rc < 0)
-		goto out_event;
-
-	IR_dprintk(1, "Registered input device on %s for %s remote%s.\n",
-		   driver_name, rc_tab->name,
-		   (ir_dev->props && ir_dev->props->driver_type == RC_DRIVER_IR_RAW) ?
-			" in raw mode" : "");
-
-	/*
-	 * Default delay of 250ms is too short for some protocols, expecially
-	 * since the timeout is currently set to 250ms. Increase it to 500ms,
-	 * to avoid wrong repetition of the keycodes.
-	 */
-	input_dev->rep[REP_DELAY] = 500;
-
-	return 0;
-
-out_event:
-	ir_unregister_class(input_dev);
-out_table:
-	ir_free_table(&ir_dev->rc_tab);
-out_name:
-	kfree(ir_dev->driver_name);
-out_dev:
-	kfree(ir_dev);
-	return rc;
+	return rdev->open(rdev);
 }
-EXPORT_SYMBOL_GPL(__ir_input_register);
-
-/**
- * ir_input_unregister() - unregisters IR and frees resources
- * @input_dev:	the struct input_dev descriptor of the device
 
- * This routine is used to free memory and de-register interfaces.
- */
-void ir_input_unregister(struct input_dev *input_dev)
+static void ir_close(struct input_dev *idev)
 {
-	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
-
-	if (!ir_dev)
-		return;
-
-	IR_dprintk(1, "Freed keycode table\n");
+	struct rc_dev *rdev = input_get_drvdata(idev);
 
-	del_timer_sync(&ir_dev->timer_keyup);
-	if (ir_dev->props)
-		if (ir_dev->props->driver_type == RC_DRIVER_IR_RAW)
-			ir_raw_event_unregister(input_dev);
-
-	ir_free_table(&ir_dev->rc_tab);
-
-	ir_unregister_class(input_dev);
-
-	kfree(ir_dev->driver_name);
-	kfree(ir_dev);
+	rdev->close(rdev);
 }
-EXPORT_SYMBOL_GPL(ir_input_unregister);
 
 /* class for /sys/class/rc */
 static char *ir_devnode(struct device *dev, mode_t *mode)
@@ -881,7 +733,7 @@ static struct {
 
 /**
  * show_protocols() - shows the current IR protocol(s)
- * @d:		the device descriptor
+ * @device:	the device descriptor
  * @mattr:	the device attribute struct (unused)
  * @buf:	a pointer to the output buffer
  *
@@ -890,26 +742,25 @@ static struct {
  * It returns the protocol names of supported protocols.
  * Enabled protocols are printed in brackets.
  */
-static ssize_t show_protocols(struct device *d,
+static ssize_t show_protocols(struct device *device,
 			      struct device_attribute *mattr, char *buf)
 {
-	struct ir_input_dev *ir_dev = dev_get_drvdata(d);
+	struct rc_dev *dev = to_rc_dev(device);
 	u64 allowed, enabled;
 	char *tmp = buf;
 	int i;
 
 	/* Device is being removed */
-	if (!ir_dev)
+	if (!dev)
 		return -EINVAL;
 
-	if (ir_dev->props && ir_dev->props->driver_type == RC_DRIVER_SCANCODE) {
-		enabled = ir_dev->rc_tab.ir_type;
-		allowed = ir_dev->props->allowed_protos;
-	} else if (ir_dev->raw) {
-		enabled = ir_dev->raw->enabled_protocols;
+	if (dev->driver_type == RC_DRIVER_SCANCODE) {
+		enabled = dev->rc_tab.ir_type;
+		allowed = dev->allowed_protos;
+	} else {
+		enabled = dev->raw->enabled_protocols;
 		allowed = ir_raw_get_allowed_protocols();
-	} else
-		return sprintf(tmp, "[builtin]\n");
+	}
 
 	IR_dprintk(1, "allowed - 0x%llx, enabled - 0x%llx\n",
 		   (long long)allowed,
@@ -930,12 +781,12 @@ static ssize_t show_protocols(struct device *d,
 
 /**
  * store_protocols() - changes the current IR protocol(s)
- * @d:		the device descriptor
+ * @device:	the device descriptor
  * @mattr:	the device attribute struct (unused)
  * @buf:	a pointer to the input buffer
  * @len:	length of the input buffer
  *
- * This routine is a callback routine for changing the IR protocol type.
+ * This routine is for changing the IR protocol type.
  * It is trigged by writing to /sys/class/rc/rc?/protocols.
  * Writing "+proto" will add a protocol to the list of enabled protocols.
  * Writing "-proto" will remove a protocol from the list of enabled protocols.
@@ -944,12 +795,12 @@ static ssize_t show_protocols(struct device *d,
  * Returns -EINVAL if an invalid protocol combination or unknown protocol name
  * is used, otherwise @len.
  */
-static ssize_t store_protocols(struct device *d,
+static ssize_t store_protocols(struct device *device,
 			       struct device_attribute *mattr,
 			       const char *data,
 			       size_t len)
 {
-	struct ir_input_dev *ir_dev = dev_get_drvdata(d);
+	struct rc_dev *dev = to_rc_dev(device);
 	bool enable, disable;
 	const char *tmp;
 	u64 type;
@@ -958,13 +809,13 @@ static ssize_t store_protocols(struct device *d,
 	unsigned long flags;
 
 	/* Device is being removed */
-	if (!ir_dev)
+	if (!dev)
 		return -EINVAL;
 
-	if (ir_dev->props && ir_dev->props->driver_type == RC_DRIVER_SCANCODE)
-		type = ir_dev->rc_tab.ir_type;
-	else if (ir_dev->raw)
-		type = ir_dev->raw->enabled_protocols;
+	if (dev->driver_type == RC_DRIVER_SCANCODE)
+		type = dev->rc_tab.ir_type;
+	else if (dev->raw)
+		type = dev->raw->enabled_protocols;
 	else {
 		IR_dprintk(1, "Protocol switching not supported\n");
 		return -EINVAL;
@@ -1019,9 +870,8 @@ static ssize_t store_protocols(struct device *d,
 		return -EINVAL;
 	}
 
-	if (ir_dev->props && ir_dev->props->change_protocol) {
-		rc = ir_dev->props->change_protocol(ir_dev->props->priv,
-						    type);
+	if (dev->change_protocol) {
+		rc = dev->change_protocol(dev, type);
 		if (rc < 0) {
 			IR_dprintk(1, "Error setting protocols to 0x%llx\n",
 				   (long long)type);
@@ -1029,12 +879,12 @@ static ssize_t store_protocols(struct device *d,
 		}
 	}
 
-	if (ir_dev->props && ir_dev->props->driver_type == RC_DRIVER_SCANCODE) {
-		spin_lock_irqsave(&ir_dev->rc_tab.lock, flags);
-		ir_dev->rc_tab.ir_type = type;
-		spin_unlock_irqrestore(&ir_dev->rc_tab.lock, flags);
+	if (dev->driver_type == RC_DRIVER_SCANCODE) {
+		spin_lock_irqsave(&dev->rc_tab.lock, flags);
+		dev->rc_tab.ir_type = type;
+		spin_unlock_irqrestore(&dev->rc_tab.lock, flags);
 	} else {
-		ir_dev->raw->enabled_protocols = type;
+		dev->raw->enabled_protocols = type;
 	}
 
 	IR_dprintk(1, "Current protocol(s): 0x%llx\n",
@@ -1043,6 +893,14 @@ static ssize_t store_protocols(struct device *d,
 	return len;
 }
 
+static void rc_dev_release(struct device *device)
+{
+	struct rc_dev *dev = to_rc_dev(device);
+
+	kfree(dev);
+	module_put(THIS_MODULE);
+}
+
 #define ADD_HOTPLUG_VAR(fmt, val...)					\
 	do {								\
 		int err = add_uevent_var(env, fmt, val);		\
@@ -1052,12 +910,12 @@ static ssize_t store_protocols(struct device *d,
 
 static int rc_dev_uevent(struct device *device, struct kobj_uevent_env *env)
 {
-	struct ir_input_dev *ir_dev = dev_get_drvdata(device);
+	struct rc_dev *dev = to_rc_dev(device);
 
-	if (ir_dev->rc_tab.name)
-		ADD_HOTPLUG_VAR("NAME=%s", ir_dev->rc_tab.name);
-	if (ir_dev->driver_name)
-		ADD_HOTPLUG_VAR("DRV_NAME=%s", ir_dev->driver_name);
+	if (dev->rc_tab.name)
+		ADD_HOTPLUG_VAR("NAME=%s", dev->rc_tab.name);
+	if (dev->driver_name)
+		ADD_HOTPLUG_VAR("DRV_NAME=%s", dev->driver_name);
 
 	return 0;
 }
@@ -1084,84 +942,162 @@ static const struct attribute_group *rc_dev_attr_groups[] = {
 
 static struct device_type rc_dev_type = {
 	.groups		= rc_dev_attr_groups,
+	.release	= rc_dev_release,
 	.uevent		= rc_dev_uevent,
 };
 
-/**
- * ir_register_class() - creates the sysfs for /sys/class/rc/rc?
- * @input_dev:	the struct input_dev descriptor of the device
- *
- * This routine is used to register the syfs code for IR class
- */
-static int ir_register_class(struct input_dev *input_dev)
+struct rc_dev *rc_allocate_device(void)
 {
-	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
-	int devno = find_first_zero_bit(&ir_core_dev_number,
-					IRRCV_NUM_DEVICES);
-
-	if (unlikely(devno < 0))
-		return devno;
-
-	ir_dev->dev.type = &rc_dev_type;
-	ir_dev->devno = devno;
-
-	ir_dev->dev.class = &ir_input_class;
-	ir_dev->dev.parent = input_dev->dev.parent;
-	input_dev->dev.parent = &ir_dev->dev;
-	dev_set_name(&ir_dev->dev, "rc%d", devno);
-	dev_set_drvdata(&ir_dev->dev, ir_dev);
-	return  device_register(&ir_dev->dev);
-};
+	struct rc_dev *dev;
 
-/**
- * ir_register_input - registers ir input device with input subsystem
- * @input_dev:	the struct input_dev descriptor of the device
- */
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+
+	dev->input_dev = input_allocate_device();
+	if (!dev->input_dev) {
+		kfree(dev);
+		return NULL;
+	}
+
+	dev->input_dev->getkeycode_new = ir_getkeycode;
+	dev->input_dev->setkeycode_new = ir_setkeycode;
+	input_set_drvdata(dev->input_dev, dev);
+
+	spin_lock_init(&dev->rc_tab.lock);
+	spin_lock_init(&dev->keylock);
+	setup_timer(&dev->timer_keyup, ir_timer_keyup, (unsigned long)dev);
 
-static int ir_register_input(struct input_dev *input_dev)
+	dev->dev.type = &rc_dev_type;
+	dev->dev.class = &ir_input_class;
+	device_initialize(&dev->dev);
+
+	__module_get(THIS_MODULE);
+	return dev;
+}
+EXPORT_SYMBOL_GPL(rc_allocate_device);
+
+void rc_free_device(struct rc_dev *dev)
 {
-	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
-	int rc;
+	if (dev) {
+		input_free_device(dev->input_dev);
+		put_device(&dev->dev);
+	}
+}
+EXPORT_SYMBOL_GPL(rc_free_device);
+
+int rc_register_device(struct rc_dev *dev)
+{
+	static atomic_t devno = ATOMIC_INIT(0);
+	struct ir_scancode_table *rc_tab;
 	const char *path;
+	int rc;
 
+	if (!dev || !dev->map_name)
+		return -EINVAL;
 
-	rc = input_register_device(input_dev);
-	if (rc < 0) {
-		device_del(&ir_dev->dev);
+	rc_tab = get_rc_map(dev->map_name);
+	if (!rc_tab)
+		rc_tab = get_rc_map(RC_MAP_EMPTY);
+	if (!rc_tab || !rc_tab->scan || rc_tab->size == 0)
+		return -EINVAL;
+
+	set_bit(EV_KEY, dev->input_dev->evbit);
+	set_bit(EV_REP, dev->input_dev->evbit);
+	set_bit(EV_MSC, dev->input_dev->evbit);
+	set_bit(MSC_SCAN, dev->input_dev->mscbit);
+	if (dev->open)
+		dev->input_dev->open = ir_open;
+	if (dev->close)
+		dev->input_dev->close = ir_close;
+
+	dev->devno = (unsigned long)(atomic_inc_return(&devno) - 1);
+	dev_set_name(&dev->dev, "rc%ld", dev->devno);
+	dev_set_drvdata(&dev->dev, dev);
+	rc = device_add(&dev->dev);
+	if (rc)
 		return rc;
-	}
 
-	__module_get(THIS_MODULE);
+	rc = ir_setkeytable(dev, rc_tab);
+	if (rc)
+		goto out_dev;
+
+	dev->input_dev->dev.parent = &dev->dev;
+	memcpy(&dev->input_dev->id, &dev->input_id, sizeof(dev->input_id));
+	dev->input_dev->phys = dev->input_phys;
+	dev->input_dev->name = dev->input_name;
+	rc = input_register_device(dev->input_dev);
+	if (rc)
+		goto out_table;
 
-	path = kobject_get_path(&ir_dev->dev.kobj, GFP_KERNEL);
+	/*
+	 * Default delay of 250ms is too short for some protocols, expecially
+	 * since the timeout is currently set to 250ms. Increase it to 500ms,
+	 * to avoid wrong repetition of the keycodes. Note that this must be
+	 * set after the call to input_register_device().
+	 */
+	dev->input_dev->rep[REP_DELAY] = 500;
+
+	path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL);
 	printk(KERN_INFO "%s: %s as %s\n",
-		dev_name(&ir_dev->dev),
-		input_dev->name ? input_dev->name : "Unspecified device",
+		dev_name(&dev->dev),
+		dev->input_name ? dev->input_name : "Unspecified device",
 		path ? path : "N/A");
 	kfree(path);
 
-	set_bit(ir_dev->devno, &ir_core_dev_number);
+	if (dev->driver_type == RC_DRIVER_IR_RAW) {
+		rc = ir_raw_event_register(dev);
+		if (rc < 0)
+			goto out_input;
+	}
+
+	if (dev->change_protocol) {
+		rc = dev->change_protocol(dev, rc_tab->ir_type);
+		if (rc < 0)
+			goto out_raw;
+	}
+
+	IR_dprintk(1, "Registered rc%ld (driver: %s, remote: %s, mode %s)\n",
+		   dev->devno,
+		   dev->driver_name ? dev->driver_name : "unknown",
+		   rc_tab->name ? rc_tab->name : "unknown",
+		   dev->driver_type == RC_DRIVER_IR_RAW ? "raw" : "cooked");
+
 	return 0;
+
+out_raw:
+	if (dev->driver_type == RC_DRIVER_IR_RAW)
+		ir_raw_event_unregister(dev);
+out_input:
+	input_unregister_device(dev->input_dev);
+	dev->input_dev = NULL;
+out_table:
+	ir_free_table(&dev->rc_tab);
+out_dev:
+	device_del(&dev->dev);
+	return rc;
 }
+EXPORT_SYMBOL_GPL(rc_register_device);
 
-/**
- * ir_unregister_class() - removes the sysfs for sysfs for
- *			   /sys/class/rc/rc?
- * @input_dev:	the struct input_dev descriptor of the device
- *
- * This routine is used to unregister the syfs code for IR class
- */
-static void ir_unregister_class(struct input_dev *input_dev)
+void rc_unregister_device(struct rc_dev *dev)
 {
-	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+	if (!dev)
+		return;
 
-	input_set_drvdata(input_dev, NULL);
-	clear_bit(ir_dev->devno, &ir_core_dev_number);
-	input_unregister_device(input_dev);
-	device_del(&ir_dev->dev);
+	del_timer_sync(&dev->timer_keyup);
 
-	module_put(THIS_MODULE);
+	if (dev->driver_type == RC_DRIVER_IR_RAW)
+		ir_raw_event_unregister(dev);
+
+	input_unregister_device(dev->input_dev);
+	dev->input_dev = NULL;
+
+	ir_free_table(&dev->rc_tab);
+	IR_dprintk(1, "Freed keycode table\n");
+
+	device_unregister(&dev->dev);
 }
+EXPORT_SYMBOL_GPL(rc_unregister_device);
 
 /*
  * Init/exit code for the module. Basically, creates/removes /sys/class/rc