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: Sean Young <sean@xxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxx>
Reviewed-by: Sean Young <sean@xxxxxxxx>
---
drivers/media/rc/rc-main.c | 42 +++++++++++++++++++++++++-----------------
include/media/rc-core.h | 9 ++++++---
2 files changed, 31 insertions(+), 20 deletions(-)
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 7c8411a40305..f527fe1f50ba 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -1365,20 +1365,24 @@ struct rc_dev *rc_allocate_device(enum rc_driver_type type)
if (!dev)
return NULL;
- dev->input_dev = input_allocate_device();
- if (!dev->input_dev) {
- kfree(dev);
- return NULL;
- }
+ if (type != RC_DRIVER_IR_RAW_TX) {
+ dev->input_dev = input_allocate_device();
+ if (!dev->input_dev) {
+ kfree(dev);
+ return NULL;
+ }
+
+ dev->input_dev->getkeycode = ir_getkeycode;
+ dev->input_dev->setkeycode = ir_setkeycode;
+ input_set_drvdata(dev->input_dev, dev);
- dev->input_dev->getkeycode = ir_getkeycode;
- dev->input_dev->setkeycode = ir_setkeycode;
- 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->keylock);
+ spin_lock_init(&dev->rc_map.lock);
+ spin_lock_init(&dev->keylock);
+ }
mutex_init(&dev->lock);
- setup_timer(&dev->timer_keyup, ir_timer_keyup, (unsigned long)dev);
dev->dev.type = &rc_dev_type;
dev->dev.class = &rc_class;
@@ -1507,7 +1511,7 @@ static int rc_setup_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;
ir_free_table(&dev->rc_map);
@@ -1537,7 +1541,8 @@ int rc_register_device(struct rc_dev *dev)
atomic_set(&dev->initialized, 0);
dev->dev.groups = dev->sysfs_groups;
- dev->sysfs_groups[attr++] = &rc_dev_protocol_attr_grp;
+ if (dev->driver_type != RC_DRIVER_IR_RAW_TX)
+ dev->sysfs_groups[attr++] = &rc_dev_protocol_attr_grp;
if (dev->s_filter)
dev->sysfs_groups[attr++] = &rc_dev_filter_attr_grp;
if (dev->s_wakeup_filter)
@@ -1555,11 +1560,14 @@ int rc_register_device(struct rc_dev *dev)
dev->input_name ?: "Unspecified device", path ?: "N/A");
kfree(path);
- rc = rc_setup_rx_device(dev);
- if (rc)
- goto out_dev;
+ if (dev->driver_type != RC_DRIVER_IR_RAW_TX) {
+ rc = rc_setup_rx_device(dev);
+ if (rc)
+ 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) {
request_module_nowait("ir-lirc-codec");
raw_init = true;
diff --git a/include/media/rc-core.h b/include/media/rc-core.h
index ba92c86c47ff..e6cb336b4668 100644
--- a/include/media/rc-core.h
+++ b/include/media/rc-core.h
@@ -32,13 +32,16 @@ do { \
/**
* enum rc_driver_type - type of the RC output
*
- * @RC_DRIVER_SCANCODE: Driver or hardware generates a scancode
- * @RC_DRIVER_IR_RAW: Driver or hardware generates pulse/space sequences.
- * It needs a Infra-Red pulse/space decoder
+ * @RC_DRIVER_SCANCODE: Driver or hardware generates a scancode
+ * @RC_DRIVER_IR_RAW: Driver or hardware generates pulse/space sequences.
+ * 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 {
RC_DRIVER_SCANCODE = 0,
RC_DRIVER_IR_RAW,
+ RC_DRIVER_IR_RAW_TX,
};
/**
--
2.11.0
--
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