summary refs log tree commit diff
path: root/drivers/media/rc/rc-ir-raw.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/rc/rc-ir-raw.c')
-rw-r--r--drivers/media/rc/rc-ir-raw.c139
1 files changed, 0 insertions, 139 deletions
diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c
index b9e4645c731c..b732ac6a26d8 100644
--- a/drivers/media/rc/rc-ir-raw.c
+++ b/drivers/media/rc/rc-ir-raw.c
@@ -30,7 +30,6 @@ static LIST_HEAD(ir_raw_client_list);
 static DEFINE_MUTEX(ir_raw_handler_lock);
 static LIST_HEAD(ir_raw_handler_list);
 static u64 available_protocols;
-static u64 encode_protocols;
 
 static int ir_raw_event_thread(void *data)
 {
@@ -241,146 +240,12 @@ ir_raw_get_allowed_protocols(void)
 	return protocols;
 }
 
-/* used internally by the sysfs interface */
-u64
-ir_raw_get_encode_protocols(void)
-{
-	u64 protocols;
-
-	mutex_lock(&ir_raw_handler_lock);
-	protocols = encode_protocols;
-	mutex_unlock(&ir_raw_handler_lock);
-	return protocols;
-}
-
 static int change_protocol(struct rc_dev *dev, u64 *rc_type)
 {
 	/* the caller will update dev->enabled_protocols */
 	return 0;
 }
 
-/**
- * ir_raw_gen_manchester() - Encode data with Manchester (bi-phase) modulation.
- * @ev:		Pointer to pointer to next free event. *@ev is incremented for
- *		each raw event filled.
- * @max:	Maximum number of raw events to fill.
- * @timings:	Manchester modulation timings.
- * @n:		Number of bits of data.
- * @data:	Data bits to encode.
- *
- * Encodes the @n least significant bits of @data using Manchester (bi-phase)
- * modulation with the timing characteristics described by @timings, writing up
- * to @max raw IR events using the *@ev pointer.
- *
- * Returns:	0 on success.
- *		-ENOBUFS if there isn't enough space in the array to fit the
- *		full encoded data. In this case all @max events will have been
- *		written.
- */
-int ir_raw_gen_manchester(struct ir_raw_event **ev, unsigned int max,
-			  const struct ir_raw_timings_manchester *timings,
-			  unsigned int n, unsigned int data)
-{
-	bool need_pulse;
-	unsigned int i;
-	int ret = -ENOBUFS;
-
-	i = 1 << (n - 1);
-
-	if (timings->leader) {
-		if (!max--)
-			return ret;
-		if (timings->pulse_space_start) {
-			init_ir_raw_event_duration((*ev)++, 1, timings->leader);
-
-			if (!max--)
-				return ret;
-			init_ir_raw_event_duration((*ev), 0, timings->leader);
-		} else {
-			init_ir_raw_event_duration((*ev), 1, timings->leader);
-		}
-		i >>= 1;
-	} else {
-		/* continue existing signal */
-		--(*ev);
-	}
-	/* from here on *ev will point to the last event rather than the next */
-
-	while (n && i > 0) {
-		need_pulse = !(data & i);
-		if (timings->invert)
-			need_pulse = !need_pulse;
-		if (need_pulse == !!(*ev)->pulse) {
-			(*ev)->duration += timings->clock;
-		} else {
-			if (!max--)
-				goto nobufs;
-			init_ir_raw_event_duration(++(*ev), need_pulse,
-						   timings->clock);
-		}
-
-		if (!max--)
-			goto nobufs;
-		init_ir_raw_event_duration(++(*ev), !need_pulse,
-					   timings->clock);
-		i >>= 1;
-	}
-
-	if (timings->trailer_space) {
-		if (!(*ev)->pulse)
-			(*ev)->duration += timings->trailer_space;
-		else if (!max--)
-			goto nobufs;
-		else
-			init_ir_raw_event_duration(++(*ev), 0,
-						   timings->trailer_space);
-	}
-
-	ret = 0;
-nobufs:
-	/* point to the next event rather than last event before returning */
-	++(*ev);
-	return ret;
-}
-EXPORT_SYMBOL(ir_raw_gen_manchester);
-
-/**
- * ir_raw_encode_scancode() - Encode a scancode as raw events
- *
- * @protocols:		permitted protocols
- * @scancode:		scancode filter describing a single scancode
- * @events:		array of raw events to write into
- * @max:		max number of raw events
- *
- * Attempts to encode the scancode as raw events.
- *
- * Returns:	The number of events written.
- *		-ENOBUFS if there isn't enough space in the array to fit the
- *		encoding. In this case all @max events will have been written.
- *		-EINVAL if the scancode is ambiguous or invalid, or if no
- *		compatible encoder was found.
- */
-int ir_raw_encode_scancode(u64 protocols,
-			   const struct rc_scancode_filter *scancode,
-			   struct ir_raw_event *events, unsigned int max)
-{
-	struct ir_raw_handler *handler;
-	int ret = -EINVAL;
-
-	mutex_lock(&ir_raw_handler_lock);
-	list_for_each_entry(handler, &ir_raw_handler_list, list) {
-		if (handler->protocols & protocols && handler->encode) {
-			ret = handler->encode(protocols, scancode, events, max);
-			if (ret >= 0 || ret == -ENOBUFS)
-				break;
-		}
-	}
-	mutex_unlock(&ir_raw_handler_lock);
-
-	return ret;
-}
-EXPORT_SYMBOL(ir_raw_encode_scancode);
-
 /*
  * Used to (un)register raw event clients
  */
@@ -463,8 +328,6 @@ int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler)
 		list_for_each_entry(raw, &ir_raw_client_list, list)
 			ir_raw_handler->raw_register(raw->dev);
 	available_protocols |= ir_raw_handler->protocols;
-	if (ir_raw_handler->encode)
-		encode_protocols |= ir_raw_handler->protocols;
 	mutex_unlock(&ir_raw_handler_lock);
 
 	return 0;
@@ -481,8 +344,6 @@ void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler)
 		list_for_each_entry(raw, &ir_raw_client_list, list)
 			ir_raw_handler->raw_unregister(raw->dev);
 	available_protocols &= ~ir_raw_handler->protocols;
-	if (ir_raw_handler->encode)
-		encode_protocols &= ~ir_raw_handler->protocols;
 	mutex_unlock(&ir_raw_handler_lock);
 }
 EXPORT_SYMBOL(ir_raw_handler_unregister);