V4L/DVB (10249): v4l2-common: added v4l2_i2c_tuner_addrs()

Add v4l2_i2c_tuner_addrs() to obtain the various I2C tuner addresses.
This will be used in several drivers, so make this a common function
as we do not want to have these I2C addresses all over the place.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 95e74f1874e1..0f864f8daaf2 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -150,6 +150,19 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
 void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
                 const struct v4l2_subdev_ops *ops);
 
+enum v4l2_i2c_tuner_type {
+        ADDRS_RADIO,    /* Radio tuner addresses */
+        ADDRS_DEMOD,    /* Demod tuner addresses */
+        ADDRS_TV,       /* TV tuner addresses */
+        /* TV tuner addresses if demod is present, this excludes
+           addresses used by the demodulator from the list of
+           candidates. */
+        ADDRS_TV_WITH_DEMOD,
+};
+/* Return a list of I2C tuner addresses to probe. Use only if the tuner
+   addresses are unknown. */
+const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type);
+
 /* ------------------------------------------------------------------------- */
 
 /* Internal ioctls */