V4L/DVB: v4l: move vbi-specific video ops to a new vbi ops struct

Only a relatively small number of video receivers and transmitters actually
support VBI. So start moving the vbi specific ops to an ops struct of their
own.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx18/cx18-av-core.c

@@ -1403,17 +1403,21 @@ static const struct v4l2_subdev_audio_ops cx18_av_audio_ops = {
 
 static const struct v4l2_subdev_video_ops cx18_av_video_ops = {
 	.s_routing = cx18_av_s_video_routing,
-	.decode_vbi_line = cx18_av_decode_vbi_line,
 	.s_stream = cx18_av_s_stream,
 	.g_fmt = cx18_av_g_fmt,
 	.s_fmt = cx18_av_s_fmt,
 };
 
+static const struct v4l2_subdev_vbi_ops cx18_av_vbi_ops = {
+	.decode_vbi_line = cx18_av_decode_vbi_line,
+};
+
 static const struct v4l2_subdev_ops cx18_av_ops = {
 	.core = &cx18_av_general_ops,
 	.tuner = &cx18_av_tuner_ops,
 	.audio = &cx18_av_audio_ops,
 	.video = &cx18_av_video_ops,
+	.vbi = &cx18_av_vbi_ops,
 };
 
 int cx18_av_probe(struct cx18 *cx)

drivers/media/video/cx18/cx18-vbi.c

@@ -174,7 +174,7 @@ static u32 compress_sliced_buf(struct cx18 *cx, u8 *buf, u32 size,
 		     p[3] != sliced_vbi_eav_rp[1]))
 			continue;
 		vbi.p = p + 4;
-		v4l2_subdev_call(cx->sd_av, video, decode_vbi_line, &vbi);
+		v4l2_subdev_call(cx->sd_av, vbi, decode_vbi_line, &vbi);
 		if (vbi.type) {
 			cx->vbi.sliced_data[line].id = vbi.type;
 			cx->vbi.sliced_data[line].field = vbi.is_second_field;

drivers/media/video/cx25840/cx25840-core.c

@@ -1635,15 +1635,19 @@ static const struct v4l2_subdev_video_ops cx25840_video_ops = {
 	.s_routing = cx25840_s_video_routing,
 	.g_fmt = cx25840_g_fmt,
 	.s_fmt = cx25840_s_fmt,
-	.decode_vbi_line = cx25840_decode_vbi_line,
 	.s_stream = cx25840_s_stream,
 };
 
+static const struct v4l2_subdev_vbi_ops cx25840_vbi_ops = {
+	.decode_vbi_line = cx25840_decode_vbi_line,
+};
+
 static const struct v4l2_subdev_ops cx25840_ops = {
 	.core = &cx25840_core_ops,
 	.tuner = &cx25840_tuner_ops,
 	.audio = &cx25840_audio_ops,
 	.video = &cx25840_video_ops,
+	.vbi = &cx25840_vbi_ops,
 };
 
 /* ----------------------------------------------------------------------- */

drivers/media/video/ivtv/ivtv-vbi.c

@@ -38,7 +38,7 @@ static void ivtv_set_vps(struct ivtv *itv, int enabled)
 	data.data[9] = itv->vbi.vps_payload.data[2];
 	data.data[10] = itv->vbi.vps_payload.data[3];
 	data.data[11] = itv->vbi.vps_payload.data[4];
-	ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_vbi_data, &data);
+	ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
 }
 
 static void ivtv_set_cc(struct ivtv *itv, int mode, const struct vbi_cc *cc)
@@ -52,12 +52,12 @@ static void ivtv_set_cc(struct ivtv *itv, int mode, const struct vbi_cc *cc)
 	data.line = (mode & 1) ? 21 : 0;
 	data.data[0] = cc->odd[0];
 	data.data[1] = cc->odd[1];
-	ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_vbi_data, &data);
+	ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
 	data.field = 1;
 	data.line = (mode & 2) ? 21 : 0;
 	data.data[0] = cc->even[0];
 	data.data[1] = cc->even[1];
-	ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_vbi_data, &data);
+	ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
 }
 
 static void ivtv_set_wss(struct ivtv *itv, int enabled, int mode)
@@ -80,7 +80,7 @@ static void ivtv_set_wss(struct ivtv *itv, int enabled, int mode)
 	data.line = enabled ? 23 : 0;
 	data.data[0] = mode & 0xff;
 	data.data[1] = (mode >> 8) & 0xff;
-	ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_vbi_data, &data);
+	ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
 }
 
 static int odd_parity(u8 c)
@@ -316,7 +316,7 @@ static u32 compress_sliced_buf(struct ivtv *itv, u32 line, u8 *buf, u32 size, u8
 			continue;
 		}
 		vbi.p = p + 4;
-		v4l2_subdev_call(itv->sd_video, video, decode_vbi_line, &vbi);
+		v4l2_subdev_call(itv->sd_video, vbi, decode_vbi_line, &vbi);
 		if (vbi.type && !(lines & (1 << vbi.line))) {
 			lines |= 1 << vbi.line;
 			itv->vbi.sliced_data[line].id = vbi.type;
@@ -440,7 +440,7 @@ void ivtv_vbi_work_handler(struct ivtv *itv)
 			data.id = V4L2_SLICED_WSS_625;
 			data.field = 0;
 
-			if (v4l2_subdev_call(itv->sd_video, video, g_vbi_data, &data) == 0) {
+			if (v4l2_subdev_call(itv->sd_video, vbi, g_vbi_data, &data) == 0) {
 				ivtv_set_wss(itv, 1, data.data[0] & 0xf);
 				vi->wss_missing_cnt = 0;
 			} else if (vi->wss_missing_cnt == 4) {
@@ -454,13 +454,13 @@ void ivtv_vbi_work_handler(struct ivtv *itv)
 
 			data.id = V4L2_SLICED_CAPTION_525;
 			data.field = 0;
-			if (v4l2_subdev_call(itv->sd_video, video, g_vbi_data, &data) == 0) {
+			if (v4l2_subdev_call(itv->sd_video, vbi, g_vbi_data, &data) == 0) {
 				mode |= 1;
 				cc.odd[0] = data.data[0];
 				cc.odd[1] = data.data[1];
 			}
 			data.field = 1;
-			if (v4l2_subdev_call(itv->sd_video, video, g_vbi_data, &data) == 0) {
+			if (v4l2_subdev_call(itv->sd_video, vbi, g_vbi_data, &data) == 0) {
 				mode |= 2;
 				cc.even[0] = data.data[0];
 				cc.even[1] = data.data[1];

drivers/media/video/saa7115.c

@@ -1550,18 +1550,22 @@ static const struct v4l2_subdev_video_ops saa711x_video_ops = {
 	.s_crystal_freq = saa711x_s_crystal_freq,
 	.g_fmt = saa711x_g_fmt,
 	.s_fmt = saa711x_s_fmt,
-	.g_vbi_data = saa711x_g_vbi_data,
-	.decode_vbi_line = saa711x_decode_vbi_line,
 	.s_stream = saa711x_s_stream,
 	.querystd = saa711x_querystd,
 	.g_input_status = saa711x_g_input_status,
 };
 
+static const struct v4l2_subdev_vbi_ops saa711x_vbi_ops = {
+	.g_vbi_data = saa711x_g_vbi_data,
+	.decode_vbi_line = saa711x_decode_vbi_line,
+};
+
 static const struct v4l2_subdev_ops saa711x_ops = {
 	.core = &saa711x_core_ops,
 	.tuner = &saa711x_tuner_ops,
 	.audio = &saa711x_audio_ops,
 	.video = &saa711x_video_ops,
+	.vbi = &saa711x_vbi_ops,
 };
 
 /* ----------------------------------------------------------------------- */

drivers/media/video/saa7127.c

@@ -727,16 +727,20 @@ static const struct v4l2_subdev_core_ops saa7127_core_ops = {
 };
 
 static const struct v4l2_subdev_video_ops saa7127_video_ops = {
-	.s_vbi_data = saa7127_s_vbi_data,
 	.g_fmt = saa7127_g_fmt,
 	.s_std_output = saa7127_s_std_output,
 	.s_routing = saa7127_s_routing,
 	.s_stream = saa7127_s_stream,
 };
 
+static const struct v4l2_subdev_vbi_ops saa7127_vbi_ops = {
+	.s_vbi_data = saa7127_s_vbi_data,
+};
+
 static const struct v4l2_subdev_ops saa7127_ops = {
 	.core = &saa7127_core_ops,
 	.video = &saa7127_video_ops,
+	.vbi = &saa7127_vbi_ops,
 };
 
 /* ----------------------------------------------------------------------- */

drivers/media/video/tvp5150.c

@@ -1046,6 +1046,9 @@ static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
 	.s_routing = tvp5150_s_routing,
 	.g_fmt = tvp5150_g_fmt,
 	.s_fmt = tvp5150_s_fmt,
+};
+
+static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
 	.g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
 };
 
@@ -1053,6 +1056,7 @@ static const struct v4l2_subdev_ops tvp5150_ops = {
 	.core = &tvp5150_core_ops,
 	.tuner = &tvp5150_tuner_ops,
 	.video = &tvp5150_video_ops,
+	.vbi = &tvp5150_vbi_ops,
 };
 
 

include/media/v4l2-subdev.h

@@ -184,28 +184,6 @@ struct v4l2_subdev_audio_ops {
 };
 
 /*
-   decode_vbi_line: video decoders that support sliced VBI need to implement
-	this ioctl. Field p of the v4l2_sliced_vbi_line struct is set to the
-	start of the VBI data that was generated by the decoder. The driver
-	then parses the sliced VBI data and sets the other fields in the
-	struct accordingly. The pointer p is updated to point to the start of
-	the payload which can be copied verbatim into the data field of the
-	v4l2_sliced_vbi_data struct. If no valid VBI data was found, then the
-	type field is set to 0 on return.
-
-   s_vbi_data: used to generate VBI signals on a video signal.
-	v4l2_sliced_vbi_data is filled with the data packets that should be
-	output. Note that if you set the line field to 0, then that VBI signal
-	is disabled. If no valid VBI data was found, then the type field is
-	set to 0 on return.
-
-   g_vbi_data: used to obtain the sliced VBI packet from a readback register.
-	Not all video decoders support this. If no data is available because
-	the readback register contains invalid or erroneous data -EIO is
-	returned. Note that you must fill in the 'id' member and the 'field'
-	member (to determine whether CC data from the first or second field
-	should be obtained).
-
    s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by
 	video input devices.
 
@@ -243,10 +221,6 @@ struct v4l2_subdev_audio_ops {
 struct v4l2_subdev_video_ops {
 	int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config);
 	int (*s_crystal_freq)(struct v4l2_subdev *sd, u32 freq, u32 flags);
-	int (*decode_vbi_line)(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi_line);
-	int (*s_vbi_data)(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *vbi_data);
-	int (*g_vbi_data)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *vbi_data);
-	int (*g_sliced_vbi_cap)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_cap *cap);
 	int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std);
 	int (*querystd)(struct v4l2_subdev *sd, v4l2_std_id *std);
 	int (*g_input_status)(struct v4l2_subdev *sd, u32 *status);
@@ -280,6 +254,36 @@ struct v4l2_subdev_video_ops {
 			  struct v4l2_mbus_framefmt *fmt);
 };
 
+/*
+   decode_vbi_line: video decoders that support sliced VBI need to implement
+	this ioctl. Field p of the v4l2_sliced_vbi_line struct is set to the
+	start of the VBI data that was generated by the decoder. The driver
+	then parses the sliced VBI data and sets the other fields in the
+	struct accordingly. The pointer p is updated to point to the start of
+	the payload which can be copied verbatim into the data field of the
+	v4l2_sliced_vbi_data struct. If no valid VBI data was found, then the
+	type field is set to 0 on return.
+
+   s_vbi_data: used to generate VBI signals on a video signal.
+	v4l2_sliced_vbi_data is filled with the data packets that should be
+	output. Note that if you set the line field to 0, then that VBI signal
+	is disabled. If no valid VBI data was found, then the type field is
+	set to 0 on return.
+
+   g_vbi_data: used to obtain the sliced VBI packet from a readback register.
+	Not all video decoders support this. If no data is available because
+	the readback register contains invalid or erroneous data -EIO is
+	returned. Note that you must fill in the 'id' member and the 'field'
+	member (to determine whether CC data from the first or second field
+	should be obtained).
+ */
+struct v4l2_subdev_vbi_ops {
+	int (*decode_vbi_line)(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi_line);
+	int (*s_vbi_data)(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *vbi_data);
+	int (*g_vbi_data)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *vbi_data);
+	int (*g_sliced_vbi_cap)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_cap *cap);
+};
+
 /**
  * struct v4l2_subdev_sensor_ops - v4l2-subdev sensor operations
  * @g_skip_top_lines: number of lines at the top of the image to be skipped.
@@ -379,6 +383,7 @@ struct v4l2_subdev_ops {
 	const struct v4l2_subdev_tuner_ops	*tuner;
 	const struct v4l2_subdev_audio_ops	*audio;
 	const struct v4l2_subdev_video_ops	*video;
+	const struct v4l2_subdev_vbi_ops	*vbi;
 	const struct v4l2_subdev_ir_ops		*ir;
 	const struct v4l2_subdev_sensor_ops	*sensor;
 };