From: Marco Felsch <m.felsch@pengutronix.de>
To: mchehab@kernel.org, sakari.ailus@linux.intel.com,
hans.verkuil@cisco.com, jacopo+renesas@jmondi.org,
robh+dt@kernel.org, laurent.pinchart@ideasonboard.com
Cc: devicetree@vger.kernel.org, kernel@pengutronix.de,
linux-media@vger.kernel.org
Subject: [PATCH v13 16/21] media: tvp5150: add v4l2-event support
Date: Thu, 12 Mar 2020 11:31:51 +0100 [thread overview]
Message-ID: <20200312103156.3178-17-m.felsch@pengutronix.de> (raw)
In-Reply-To: <20200312103156.3178-1-m.felsch@pengutronix.de>
Currently the driver notifies internal subdevs if the signal is locked
or not. This information is also useful for userpace applications e.g. to
switch to another input device upon a signal lost event.
This commit adds the support for the userspace to subscribe to the
V4L2_EVENT_SOURCE_CHANGE and V4L2_EVENT_CTRL events.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
drivers/media/i2c/tvp5150.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 06ca3081f3d1..d59b52775334 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -17,6 +17,7 @@
#include <linux/regmap.h>
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-mc.h>
@@ -1526,6 +1527,19 @@ static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
}
#endif
+static int tvp5150_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
+ struct v4l2_event_subscription *sub)
+{
+ switch (sub->type) {
+ case V4L2_EVENT_SOURCE_CHANGE:
+ return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
+ case V4L2_EVENT_CTRL:
+ return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
+ default:
+ return -EINVAL;
+ }
+}
+
static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
int status = tvp5150_read(sd, 0x88);
@@ -1617,6 +1631,8 @@ static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
.g_register = tvp5150_g_register,
.s_register = tvp5150_s_register,
#endif
+ .subscribe_event = tvp5150_subscribe_event,
+ .unsubscribe_event = v4l2_event_subdev_unsubscribe,
};
static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
@@ -2045,7 +2061,7 @@ static int tvp5150_probe(struct i2c_client *c)
sd = &core->sd;
v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
sd->internal_ops = &tvp5150_internal_ops;
- sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
if (IS_ENABLED(CONFIG_OF) && np) {
res = tvp5150_parse_dt(core, np);
--
2.20.1
next prev parent reply other threads:[~2020-03-12 10:32 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-12 10:31 [PATCH v13 00/19] TVP5150 Features and Fixes Marco Felsch
2020-03-12 10:31 ` [PATCH v13 01/21] dt-bindings: connector: analog: add sdtv standards property Marco Felsch
2020-03-12 10:31 ` [PATCH v13 02/21] dt-bindings: display: add sdtv-standards defines Marco Felsch
2020-03-12 10:31 ` [PATCH v13 03/21] media: v4l: link dt-bindings and uapi Marco Felsch
2020-03-12 10:31 ` [PATCH v13 04/21] media: v4l2-fwnode: fix v4l2_fwnode_parse_link handling Marco Felsch
2020-03-12 10:37 ` Sakari Ailus
2020-03-12 10:42 ` Sakari Ailus
2020-03-12 10:43 ` Sakari Ailus
2020-03-12 11:14 ` Marco Felsch
2020-03-12 10:31 ` [PATCH v13 05/21] media: v4l2-fwnode: simplify v4l2_fwnode_parse_link Marco Felsch
2020-03-12 10:31 ` [PATCH v13 06/21] media: v4l2-fwnode: add endpoint id field to v4l2_fwnode_link Marco Felsch
2020-03-12 10:31 ` [PATCH v13 07/21] media: v4l2-fwnode: add v4l2_fwnode_connector Marco Felsch
2020-03-12 10:31 ` [PATCH v13 08/21] media: v4l2-fwnode: add initial connector parsing support Marco Felsch
2020-03-12 10:31 ` [PATCH v13 09/21] partial revert of "[media] tvp5150: add HW input connectors support" Marco Felsch
2020-03-12 10:31 ` [PATCH v13 10/21] media: tvp5150: add input source selection of_graph support Marco Felsch
2020-03-12 10:31 ` [PATCH v13 11/21] media: dt-bindings: tvp5150: Add input port connectors DT bindings Marco Felsch
2020-03-12 10:31 ` [PATCH v13 12/21] media: tvp5150: fix set_selection rectangle handling Marco Felsch
2020-03-12 10:31 ` [PATCH v13 13/21] media: tvp5150: add FORMAT_TRY support for get/set selection handlers Marco Felsch
2020-03-12 10:31 ` [PATCH v13 14/21] media: tvp5150: initialize subdev before parsing device tree Marco Felsch
2020-03-12 10:31 ` [PATCH v13 15/21] media: tvp5150: move irq en-/disable into runtime-pm ops Marco Felsch
2020-03-12 10:31 ` Marco Felsch [this message]
2020-03-12 10:31 ` [PATCH v13 17/21] media: tvp5150: add subdev open/close callbacks Marco Felsch
2020-03-12 10:31 ` [PATCH v13 18/21] media: dt-bindings: tvp5150: cleanup bindings stlye Marco Felsch
2020-03-12 10:31 ` [PATCH v13 19/21] media: dt-bindings: tvp5150: add optional sdtv standards documentation Marco Felsch
2020-03-12 10:31 ` [PATCH v13 20/21] media: tvp5150: add support to limit sdtv standards Marco Felsch
2020-03-12 10:31 ` [PATCH v13 21/21] media: tvp5150: make debug output more readable Marco Felsch
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