Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 45cc29af authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] v4l2-ctrls: add V4L2_CID_DV_RX/TX_IT_CONTENT_TYPE controls 



HDMI and DisplayPort both support IT Content Type information that
tells the receiver what type of material the video is, graphics such
as from a PC desktop, Photo, Cinema or Game (low-latency).

This patch adds controls for receivers and transmitters to get/set
this information.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent bd3e275f

drivers/media/v4l2-core/v4l2-ctrls.c

+16 −0
Original line number Diff line number Diff line
@@ -462,6 +462,14 @@ const char * const *v4l2_ctrl_get_menu(u32 id) 
		"RGB full range (0-255)",

		NULL,

	};

	static const char * const dv_it_content_type[] = {

		"Graphics",

		"Photo",

		"Cinema",

		"Game",

		"No IT Content",

		NULL,

	};

	static const char * const detect_md_mode[] = {

		"Disabled",

		"Global",
@@ -560,6 +568,9 @@ const char * const *v4l2_ctrl_get_menu(u32 id) 
	case V4L2_CID_DV_TX_RGB_RANGE:

	case V4L2_CID_DV_RX_RGB_RANGE:

		return dv_rgb_range;

	case V4L2_CID_DV_TX_IT_CONTENT_TYPE:

	case V4L2_CID_DV_RX_IT_CONTENT_TYPE:

		return dv_it_content_type;

	case V4L2_CID_DETECT_MD_MODE:

		return detect_md_mode;
@@ -881,8 +892,10 @@ const char *v4l2_ctrl_get_name(u32 id) 
	case V4L2_CID_DV_TX_EDID_PRESENT:	return "EDID Present";

	case V4L2_CID_DV_TX_MODE:		return "Transmit Mode";

	case V4L2_CID_DV_TX_RGB_RANGE:		return "Tx RGB Quantization Range";

	case V4L2_CID_DV_TX_IT_CONTENT_TYPE:	return "Tx IT Content Type";

	case V4L2_CID_DV_RX_POWER_PRESENT:	return "Power Present";

	case V4L2_CID_DV_RX_RGB_RANGE:		return "Rx RGB Quantization Range";

	case V4L2_CID_DV_RX_IT_CONTENT_TYPE:	return "Rx IT Content Type";



	case V4L2_CID_FM_RX_CLASS:		return "FM Radio Receiver Controls";

	case V4L2_CID_TUNE_DEEMPHASIS:		return "De-Emphasis";
@@ -1038,7 +1051,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, 
	case V4L2_CID_SCENE_MODE:

	case V4L2_CID_DV_TX_MODE:

	case V4L2_CID_DV_TX_RGB_RANGE:

	case V4L2_CID_DV_TX_IT_CONTENT_TYPE:

	case V4L2_CID_DV_RX_RGB_RANGE:

	case V4L2_CID_DV_RX_IT_CONTENT_TYPE:

	case V4L2_CID_TEST_PATTERN:

	case V4L2_CID_TUNE_DEEMPHASIS:

	case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL:
@@ -1185,6 +1200,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, 
	case V4L2_CID_DV_TX_RXSENSE:

	case V4L2_CID_DV_TX_EDID_PRESENT:

	case V4L2_CID_DV_RX_POWER_PRESENT:

	case V4L2_CID_DV_RX_IT_CONTENT_TYPE:

	case V4L2_CID_RDS_RX_PTY:

	case V4L2_CID_RDS_RX_PS_NAME:

	case V4L2_CID_RDS_RX_RADIO_TEXT:

include/uapi/linux/v4l2-controls.h

+10 −0
Original line number Diff line number Diff line
@@ -912,8 +912,18 @@ enum v4l2_dv_rgb_range { 
	V4L2_DV_RGB_RANGE_FULL	  = 2,

};



#define V4L2_CID_DV_TX_IT_CONTENT_TYPE		(V4L2_CID_DV_CLASS_BASE + 6)

enum v4l2_dv_it_content_type {

	V4L2_DV_IT_CONTENT_TYPE_GRAPHICS  = 0,

	V4L2_DV_IT_CONTENT_TYPE_PHOTO	  = 1,

	V4L2_DV_IT_CONTENT_TYPE_CINEMA	  = 2,

	V4L2_DV_IT_CONTENT_TYPE_GAME	  = 3,

	V4L2_DV_IT_CONTENT_TYPE_NO_ITC	  = 4,

};



#define	V4L2_CID_DV_RX_POWER_PRESENT		(V4L2_CID_DV_CLASS_BASE + 100)

#define V4L2_CID_DV_RX_RGB_RANGE		(V4L2_CID_DV_CLASS_BASE + 101)

#define V4L2_CID_DV_RX_IT_CONTENT_TYPE		(V4L2_CID_DV_CLASS_BASE + 102)



#define V4L2_CID_FM_RX_CLASS_BASE		(V4L2_CTRL_CLASS_FM_RX | 0x900)

#define V4L2_CID_FM_RX_CLASS			(V4L2_CTRL_CLASS_FM_RX | 1)