[media] SDI: add flag for SDI formats and SMPTE 125M definition

Adding others generic flags, which could be used by many
components like GS1662.
Signed-off-by: Charles-Antoine Couret <charles-antoine.couret@nexvision.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/v4l2-core/v4l2-dv-timings.c

@@ -306,7 +306,7 @@ void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
 			(bt->polarities & V4L2_DV_VSYNC_POS_POL) ? "+" : "-",
 			bt->il_vsync, bt->il_vbackporch);
 	pr_info("%s: pixelclock: %llu\n", dev_prefix, bt->pixelclock);
-	pr_info("%s: flags (0x%x):%s%s%s%s%s%s\n", dev_prefix, bt->flags,
+	pr_info("%s: flags (0x%x):%s%s%s%s%s%s%s\n", dev_prefix, bt->flags,
 			(bt->flags & V4L2_DV_FL_REDUCED_BLANKING) ?
 			" REDUCED_BLANKING" : "",
 			((bt->flags & V4L2_DV_FL_REDUCED_BLANKING) &&
@@ -318,12 +318,15 @@ void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
 			(bt->flags & V4L2_DV_FL_HALF_LINE) ?
 			" HALF_LINE" : "",
 			(bt->flags & V4L2_DV_FL_IS_CE_VIDEO) ?
-			" CE_VIDEO" : "");
-	pr_info("%s: standards (0x%x):%s%s%s%s\n", dev_prefix, bt->standards,
+			" CE_VIDEO" : "",
+			(bt->flags & V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE) ?
+			" FIRST_FIELD_EXTRA_LINE" : "");
+	pr_info("%s: standards (0x%x):%s%s%s%s%s\n", dev_prefix, bt->standards,
 			(bt->standards & V4L2_DV_BT_STD_CEA861) ?  " CEA" : "",
 			(bt->standards & V4L2_DV_BT_STD_DMT) ?  " DMT" : "",
 			(bt->standards & V4L2_DV_BT_STD_CVT) ?  " CVT" : "",
-			(bt->standards & V4L2_DV_BT_STD_GTF) ?  " GTF" : "");
+			(bt->standards & V4L2_DV_BT_STD_GTF) ?  " GTF" : "",
+			(bt->standards & V4L2_DV_BT_STD_SDI) ?  " SDI" : "");
 }
 EXPORT_SYMBOL_GPL(v4l2_print_dv_timings);
 

include/uapi/linux/v4l2-dv-timings.h

@@ -934,4 +934,16 @@
 		V4L2_DV_FL_REDUCED_BLANKING) \
 }
 
+/* SDI timings definitions */
+
+/* SMPTE-125M */
+#define V4L2_DV_BT_SDI_720X487I60 { \
+	.type = V4L2_DV_BT_656_1120, \
+	V4L2_INIT_BT_TIMINGS(720, 487, 1, \
+		V4L2_DV_HSYNC_POS_POL, \
+		13500000, 16, 121, 0, 0, 19, 0, 0, 19, 0, \
+		V4L2_DV_BT_STD_SDI, \
+		V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE) \
+}
+
 #endif

include/uapi/linux/videodev2.h

@@ -1274,6 +1274,7 @@ struct v4l2_bt_timings {
 #define V4L2_DV_BT_STD_DMT	(1 << 1)  /* VESA Discrete Monitor Timings */
 #define V4L2_DV_BT_STD_CVT	(1 << 2)  /* VESA Coordinated Video Timings */
 #define V4L2_DV_BT_STD_GTF	(1 << 3)  /* VESA Generalized Timings Formula */
+#define V4L2_DV_BT_STD_SDI	(1 << 4)  /* SDI Timings */
 
 /* Flags */
 
@@ -1305,6 +1306,11 @@ struct v4l2_bt_timings {
  * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
  * except for the 640x480 format are CE formats. */
 #define V4L2_DV_FL_IS_CE_VIDEO			(1 << 4)
+/* Some formats like SMPTE-125M have an interlaced signal with a odd
+ * total height. For these formats, if this flag is set, the first
+ * field has the extra line. If not, it is the second field.
+ */
+#define V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE		(1 << 5)
 
 /* A few useful defines to calculate the total blanking and frame sizes */
 #define V4L2_DV_BT_BLANKING_WIDTH(bt) \
@@ -1429,6 +1435,8 @@ struct v4l2_input {
 /* field 'status' - analog */
 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
+#define V4L2_IN_ST_NO_V_LOCK   0x00000400  /* No vertical sync lock */
+#define V4L2_IN_ST_NO_STD_LOCK 0x00000800  /* No standard format lock */
 
 /* field 'status' - digital */
 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */