V4L/DVB (7942): Hardware frequency seek ioctl interface
Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/compat_ioctl32.c b/drivers/media/video/compat_ioctl32.c
index cefd138..54de0cd 100644
--- a/drivers/media/video/compat_ioctl32.c
+++ b/drivers/media/video/compat_ioctl32.c
@@ -884,6 +884,7 @@
case VIDIOC_G_INPUT32:
case VIDIOC_S_INPUT32:
case VIDIOC_TRY_FMT32:
+ case VIDIOC_S_HW_FREQ_SEEK:
ret = do_video_ioctl(file, cmd, arg);
break;
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 7649860..52c5667 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -278,6 +278,7 @@
[_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER",
[_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT",
+ [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK",
#endif
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
@@ -1763,6 +1764,17 @@
ret = vfd->vidioc_default(file, fh, cmd, arg);
break;
}
+ case VIDIOC_S_HW_FREQ_SEEK:
+ {
+ struct v4l2_hw_freq_seek *p = arg;
+ if (!vfd->vidioc_s_hw_freq_seek)
+ break;
+ dbgarg(cmd,
+ "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n",
+ p->tuner, p->type, p->seek_upward, p->wrap_around);
+ ret = vfd->vidioc_s_hw_freq_seek(file, fh, p);
+ break;
+ }
} /* switch */
if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) {
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 4a535ea..9385c82 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -246,6 +246,7 @@
#define V4L2_CAP_SLICED_VBI_OUTPUT 0x00000080 /* Is a sliced VBI output device */
#define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */
#define V4L2_CAP_VIDEO_OUTPUT_OVERLAY 0x00000200 /* Can do video output overlay */
+#define V4L2_CAP_HW_FREQ_SEEK 0x00000400 /* Can do hardware frequency seek */
#define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
@@ -1156,6 +1157,14 @@
__u32 reserved[8];
};
+struct v4l2_hw_freq_seek {
+ __u32 tuner;
+ enum v4l2_tuner_type type;
+ __u32 seek_upward;
+ __u32 wrap_around;
+ __u32 reserved[8];
+};
+
/*
* A U D I O
*/
@@ -1441,6 +1450,7 @@
#define VIDIOC_G_CHIP_IDENT _IOWR ('V', 81, struct v4l2_chip_ident)
#endif
+#define VIDIOC_S_HW_FREQ_SEEK _IOW ('V', 82, struct v4l2_hw_freq_seek)
#ifdef __OLD_VIDIOC_
/* for compatibility, will go away some day */
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 859f7a6..53b651a 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -306,6 +306,8 @@
/* Log status ioctl */
int (*vidioc_log_status) (struct file *file, void *fh);
+ int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh,
+ struct v4l2_hw_freq_seek *a);
/* Debugging ioctls */
#ifdef CONFIG_VIDEO_ADV_DEBUG
