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Commit d34aee10 authored by Andi Shyti's avatar Andi Shyti Committed by Mauro Carvalho Chehab
Browse files

[media] rc-core: add support for IR raw transmitters 



IR raw transmitter driver type is specified in the enum
rc_driver_type as RC_DRIVER_IR_RAW_TX which includes all those
devices that transmit raw stream of bit to a receiver.

The data are provided by userspace applications, therefore they
don't need any input device allocation, but still they need to be
registered as raw devices.

Suggested-by: default avatarSean Young <sean@mess.org>
Signed-off-by: default avatarAndi Shyti <andi.shyti@samsung.com>
Signed-off-by: default avatarSean Young <sean@mess.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 7ff2c2bc

drivers/media/rc/rc-main.c

+25 −17
Original line number Original line Diff line number Diff line
@@ -1585,6 +1585,7 @@ struct rc_dev *rc_allocate_device(enum rc_driver_type type) 
	if (!dev)

	if (!dev)

		return NULL;

		return NULL;





	if (type != RC_DRIVER_IR_RAW_TX) {

		dev->input_dev = input_allocate_device();

		dev->input_dev = input_allocate_device();

		if (!dev->input_dev) {

		if (!dev->input_dev) {

			kfree(dev);

			kfree(dev);
@@ -1595,10 +1596,13 @@ struct rc_dev *rc_allocate_device(enum rc_driver_type type) 
		dev->input_dev->setkeycode = ir_setkeycode;

		dev->input_dev->setkeycode = ir_setkeycode;

		input_set_drvdata(dev->input_dev, dev);

		input_set_drvdata(dev->input_dev, dev);





		setup_timer(&dev->timer_keyup, ir_timer_keyup,

			    (unsigned long)dev);



		spin_lock_init(&dev->rc_map.lock);

		spin_lock_init(&dev->rc_map.lock);

		spin_lock_init(&dev->keylock);

		spin_lock_init(&dev->keylock);

	}

	mutex_init(&dev->lock);

	mutex_init(&dev->lock);

	setup_timer(&dev->timer_keyup, ir_timer_keyup, (unsigned long)dev);





	dev->dev.type = &rc_dev_type;

	dev->dev.type = &rc_dev_type;

	dev->dev.class = &rc_class;

	dev->dev.class = &rc_class;
@@ -1727,7 +1731,7 @@ static int rc_setup_rx_device(struct rc_dev *dev) 




static void rc_free_rx_device(struct rc_dev *dev)

static void rc_free_rx_device(struct rc_dev *dev)

{

{

	if (!dev)

	if (!dev || dev->driver_type == RC_DRIVER_IR_RAW_TX)

		return;

		return;





	ir_free_table(&dev->rc_map);

	ir_free_table(&dev->rc_map);
@@ -1757,6 +1761,7 @@ int rc_register_device(struct rc_dev *dev) 
	atomic_set(&dev->initialized, 0);

	atomic_set(&dev->initialized, 0);





	dev->dev.groups = dev->sysfs_groups;

	dev->dev.groups = dev->sysfs_groups;

	if (dev->driver_type != RC_DRIVER_IR_RAW_TX)

		dev->sysfs_groups[attr++] = &rc_dev_protocol_attr_grp;

		dev->sysfs_groups[attr++] = &rc_dev_protocol_attr_grp;

	if (dev->s_filter)

	if (dev->s_filter)

		dev->sysfs_groups[attr++] = &rc_dev_filter_attr_grp;

		dev->sysfs_groups[attr++] = &rc_dev_filter_attr_grp;
@@ -1773,11 +1778,14 @@ int rc_register_device(struct rc_dev *dev) 
		dev->input_name ?: "Unspecified device", path ?: "N/A");

		dev->input_name ?: "Unspecified device", path ?: "N/A");

	kfree(path);

	kfree(path);





	if (dev->driver_type != RC_DRIVER_IR_RAW_TX) {

		rc = rc_setup_rx_device(dev);

		rc = rc_setup_rx_device(dev);

		if (rc)

		if (rc)

			goto out_dev;

			goto out_dev;

	}





	if (dev->driver_type == RC_DRIVER_IR_RAW) {

	if (dev->driver_type == RC_DRIVER_IR_RAW ||

	    dev->driver_type == RC_DRIVER_IR_RAW_TX) {

		if (!raw_init) {

		if (!raw_init) {

			request_module_nowait("ir-lirc-codec");

			request_module_nowait("ir-lirc-codec");

			raw_init = true;

			raw_init = true;

include/media/rc-core.h

+6 −3
Original line number Original line Diff line number Diff line
@@ -35,10 +35,13 @@ do { \ 
 * @RC_DRIVER_SCANCODE:	 Driver or hardware generates a scancode

 * @RC_DRIVER_SCANCODE:	 Driver or hardware generates a scancode

 * @RC_DRIVER_IR_RAW:	 Driver or hardware generates pulse/space sequences.

 * @RC_DRIVER_IR_RAW:	 Driver or hardware generates pulse/space sequences.

 *			 It needs a Infra-Red pulse/space decoder

 *			 It needs a Infra-Red pulse/space decoder

 * @RC_DRIVER_IR_RAW_TX: Device transmitter only,

 *			 driver requires pulse/space data sequence.

 */

 */

enum rc_driver_type {

enum rc_driver_type {

	RC_DRIVER_SCANCODE = 0,

	RC_DRIVER_SCANCODE = 0,

	RC_DRIVER_IR_RAW,

	RC_DRIVER_IR_RAW,

	RC_DRIVER_IR_RAW_TX,

};

};





/**

/**