Merge tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Lots of improvements at the DVB API DocBook documentation.  Now, the
   frontend and the network APIs are fully in sync with the Kernel and
   looks more like the rest of the media documentation;

 - New frontend driver: cx24120

 - New driver for a PCI device: cobalt.  This driver is actually not
   sold in the market, but it is a good example of a multi-HDMI input
   device;

 - The dt3155 driver were promoted from staging;

 - The mantis driver got remote controller support;

 - New V4L2 driver for ST bdisp SoC chipsets;

 - Make sparse and smatch happier: several bugs were solved by fixing
   the issues reported by those static code analyzers.

 - Lots of new device additions, new features, improvements and cleanups
   at the existing drivers.

* tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (553 commits)
  [media] lmedm04: fix the range for relative measurements
  [media] lmedm04: use u32 instead of u64 for relative stats
  [media] omap3isp: remove unused var
  [media] saa7134: fix page size on some archs
  [media] use CONFIG_PM_SLEEP for suspend/resume
  [media] tuner-i2c: be consistent with I2C declaration
  [media] si470x: cleanup define namespace
  [media] bdisp: prevent compiling on random arch
  [media] vb2: Don't WARN when v4l2_buffer.bytesused is 0 for multiplanar buffers
  [media] MAINTAINERS: Add entry for the Renesas VSP1 driver
  [media] videodev2.h: fix copy-and-paste error in V4L2_MAP_XFER_FUNC_DEFAULT
  [media] Revert "[media] vb2: Push mmap_sem down to memops"
  [media] mantis: cleanup a warning
  [media] bdisp-debug: don't try to divide by s64
  [media] cx88: don't declare restart_video_queue if not used
  [media] au0828: move dev->boards atribuition to happen earlier
  [media] lmedm04: implement dvb v5 statistics
  [media] bdisp: remove unused var
  [media] bdisp: remove needless check
  ts2020: fix compilation on i386
  ...

4 files changed, 206 insertions, 114 deletions

diff --git a/include/uapi/linux/dvb/dmx.h b/include/uapi/linux/dvb/dmx.h
index b4fb650d9d4f..427e4899ed69 100644
--- a/include/uapi/linux/dvb/dmx.h
+++ b/include/uapi/linux/dvb/dmx.h
@@ -32,7 +32,7 @@
 
 #define DMX_FILTER_SIZE 16
 
-typedef enum
+enum dmx_output
 {
 	DMX_OUT_DECODER, /* Streaming directly to decoder. */
 	DMX_OUT_TAP,     /* Output going to a memory buffer */
@@ -41,10 +41,11 @@ typedef enum
 			 /* (to be retrieved by reading from the */
 			 /* logical DVR device).                 */
 	DMX_OUT_TSDEMUX_TAP /* Like TS_TAP but retrieved from the DMX device */
-} dmx_output_t;
+};
 
+typedef enum dmx_output dmx_output_t;
 
-typedef enum
+typedef enum dmx_input
 {
 	DMX_IN_FRONTEND, /* Input from a front-end device.  */
 	DMX_IN_DVR       /* Input from the logical DVR device.  */
@@ -122,7 +123,7 @@ typedef struct dmx_caps {
 	int num_decoders;
 } dmx_caps_t;
 
-typedef enum {
+typedef enum dmx_source {
 	DMX_SOURCE_FRONT0 = 0,
 	DMX_SOURCE_FRONT1,
 	DMX_SOURCE_FRONT2,
@@ -139,7 +140,6 @@ struct dmx_stc {
 	__u64 stc;		/* output: stc in 'base'*90 kHz units */
 };
 
-
 #define DMX_START                _IO('o', 41)
 #define DMX_STOP                 _IO('o', 42)
 #define DMX_SET_FILTER           _IOW('o', 43, struct dmx_sct_filter_params)
diff --git a/include/uapi/linux/dvb/frontend.h b/include/uapi/linux/dvb/frontend.h
index c56d77c496a5..00a20cd21ee2 100644
--- a/include/uapi/linux/dvb/frontend.h
+++ b/include/uapi/linux/dvb/frontend.h
@@ -28,15 +28,14 @@
 
 #include <linux/types.h>
 
-typedef enum fe_type {
+enum fe_type {
 	FE_QPSK,
 	FE_QAM,
 	FE_OFDM,
 	FE_ATSC
-} fe_type_t;
-
+};
 
-typedef enum fe_caps {
+enum fe_caps {
 	FE_IS_STUPID			= 0,
 	FE_CAN_INVERSION_AUTO		= 0x1,
 	FE_CAN_FEC_1_2			= 0x2,
@@ -68,12 +67,11 @@ typedef enum fe_caps {
 	FE_NEEDS_BENDING		= 0x20000000, /* not supported anymore, don't use (frontend requires frequency bending) */
 	FE_CAN_RECOVER			= 0x40000000, /* frontend can recover from a cable unplug automatically */
 	FE_CAN_MUTE_TS			= 0x80000000  /* frontend can stop spurious TS data output */
-} fe_caps_t;
-
+};
 
 struct dvb_frontend_info {
 	char       name[128];
-	fe_type_t  type;			/* DEPRECATED. Use DTV_ENUM_DELSYS instead */
+	enum fe_type type;	/* DEPRECATED. Use DTV_ENUM_DELSYS instead */
 	__u32      frequency_min;
 	__u32      frequency_max;
 	__u32      frequency_stepsize;
@@ -82,7 +80,7 @@ struct dvb_frontend_info {
 	__u32      symbol_rate_max;
 	__u32      symbol_rate_tolerance;	/* ppm */
 	__u32      notifier_delay;		/* DEPRECATED */
-	fe_caps_t  caps;
+	enum fe_caps caps;
 };
 
 
@@ -95,32 +93,27 @@ struct dvb_diseqc_master_cmd {
 	__u8 msg_len;	/*  valid values are 3...6  */
 };
 
-
 struct dvb_diseqc_slave_reply {
 	__u8 msg [4];	/*  { framing, data [3] } */
 	__u8 msg_len;	/*  valid values are 0...4, 0 means no msg  */
 	int  timeout;	/*  return from ioctl after timeout ms with */
 };			/*  errorcode when no message was received  */
 
-
-typedef enum fe_sec_voltage {
+enum fe_sec_voltage {
 	SEC_VOLTAGE_13,
 	SEC_VOLTAGE_18,
 	SEC_VOLTAGE_OFF
-} fe_sec_voltage_t;
-
+};
 
-typedef enum fe_sec_tone_mode {
+enum fe_sec_tone_mode {
 	SEC_TONE_ON,
 	SEC_TONE_OFF
-} fe_sec_tone_mode_t;
-
+};
 
-typedef enum fe_sec_mini_cmd {
+enum fe_sec_mini_cmd {
 	SEC_MINI_A,
 	SEC_MINI_B
-} fe_sec_mini_cmd_t;
-
+};
 
 /**
  * enum fe_status - enumerates the possible frontend status
@@ -133,8 +126,7 @@ typedef enum fe_sec_mini_cmd {
  * @FE_REINIT:		frontend was reinitialized, application is recommended
  *			to reset DiSEqC, tone and parameters
  */
-
-typedef enum fe_status {
+enum fe_status {
 	FE_HAS_SIGNAL		= 0x01,
 	FE_HAS_CARRIER		= 0x02,
 	FE_HAS_VITERBI		= 0x04,
@@ -142,16 +134,15 @@ typedef enum fe_status {
 	FE_HAS_LOCK		= 0x10,
 	FE_TIMEDOUT		= 0x20,
 	FE_REINIT		= 0x40,
-} fe_status_t;
+};
 
-typedef enum fe_spectral_inversion {
+enum fe_spectral_inversion {
 	INVERSION_OFF,
 	INVERSION_ON,
 	INVERSION_AUTO
-} fe_spectral_inversion_t;
-
+};
 
-typedef enum fe_code_rate {
+enum fe_code_rate {
 	FEC_NONE = 0,
 	FEC_1_2,
 	FEC_2_3,
@@ -165,10 +156,9 @@ typedef enum fe_code_rate {
 	FEC_3_5,
 	FEC_9_10,
 	FEC_2_5,
-} fe_code_rate_t;
-
+};
 
-typedef enum fe_modulation {
+enum fe_modulation {
 	QPSK,
 	QAM_16,
 	QAM_32,
@@ -183,9 +173,9 @@ typedef enum fe_modulation {
 	APSK_32,
 	DQPSK,
 	QAM_4_NR,
-} fe_modulation_t;
+};
 
-typedef enum fe_transmit_mode {
+enum fe_transmit_mode {
 	TRANSMISSION_MODE_2K,
 	TRANSMISSION_MODE_8K,
 	TRANSMISSION_MODE_AUTO,
@@ -195,21 +185,9 @@ typedef enum fe_transmit_mode {
 	TRANSMISSION_MODE_32K,
 	TRANSMISSION_MODE_C1,
 	TRANSMISSION_MODE_C3780,
-} fe_transmit_mode_t;
-
-#if defined(__DVB_CORE__) || !defined (__KERNEL__)
-typedef enum fe_bandwidth {
-	BANDWIDTH_8_MHZ,
-	BANDWIDTH_7_MHZ,
-	BANDWIDTH_6_MHZ,
-	BANDWIDTH_AUTO,
-	BANDWIDTH_5_MHZ,
-	BANDWIDTH_10_MHZ,
-	BANDWIDTH_1_712_MHZ,
-} fe_bandwidth_t;
-#endif
+};
 
-typedef enum fe_guard_interval {
+enum fe_guard_interval {
 	GUARD_INTERVAL_1_32,
 	GUARD_INTERVAL_1_16,
 	GUARD_INTERVAL_1_8,
@@ -221,16 +199,15 @@ typedef enum fe_guard_interval {
 	GUARD_INTERVAL_PN420,
 	GUARD_INTERVAL_PN595,
 	GUARD_INTERVAL_PN945,
-} fe_guard_interval_t;
-
+};
 
-typedef enum fe_hierarchy {
+enum fe_hierarchy {
 	HIERARCHY_NONE,
 	HIERARCHY_1,
 	HIERARCHY_2,
 	HIERARCHY_4,
 	HIERARCHY_AUTO
-} fe_hierarchy_t;
+};
 
 enum fe_interleaving {
 	INTERLEAVING_NONE,
@@ -239,51 +216,6 @@ enum fe_interleaving {
 	INTERLEAVING_720,
 };
 
-#if defined(__DVB_CORE__) || !defined (__KERNEL__)
-struct dvb_qpsk_parameters {
-	__u32		symbol_rate;  /* symbol rate in Symbols per second */
-	fe_code_rate_t	fec_inner;    /* forward error correction (see above) */
-};
-
-struct dvb_qam_parameters {
-	__u32		symbol_rate; /* symbol rate in Symbols per second */
-	fe_code_rate_t	fec_inner;   /* forward error correction (see above) */
-	fe_modulation_t	modulation;  /* modulation type (see above) */
-};
-
-struct dvb_vsb_parameters {
-	fe_modulation_t	modulation;  /* modulation type (see above) */
-};
-
-struct dvb_ofdm_parameters {
-	fe_bandwidth_t      bandwidth;
-	fe_code_rate_t      code_rate_HP;  /* high priority stream code rate */
-	fe_code_rate_t      code_rate_LP;  /* low priority stream code rate */
-	fe_modulation_t     constellation; /* modulation type (see above) */
-	fe_transmit_mode_t  transmission_mode;
-	fe_guard_interval_t guard_interval;
-	fe_hierarchy_t      hierarchy_information;
-};
-
-
-struct dvb_frontend_parameters {
-	__u32 frequency;     /* (absolute) frequency in Hz for QAM/OFDM/ATSC */
-			     /* intermediate frequency in kHz for QPSK */
-	fe_spectral_inversion_t inversion;
-	union {
-		struct dvb_qpsk_parameters qpsk;
-		struct dvb_qam_parameters  qam;
-		struct dvb_ofdm_parameters ofdm;
-		struct dvb_vsb_parameters vsb;
-	} u;
-};
-
-struct dvb_frontend_event {
-	fe_status_t status;
-	struct dvb_frontend_parameters parameters;
-};
-#endif
-
 /* S2API Commands */
 #define DTV_UNDEFINED		0
 #define DTV_TUNE		1
@@ -377,20 +309,20 @@ struct dvb_frontend_event {
 
 #define DTV_MAX_COMMAND		DTV_STAT_TOTAL_BLOCK_COUNT
 
-typedef enum fe_pilot {
+enum fe_pilot {
 	PILOT_ON,
 	PILOT_OFF,
 	PILOT_AUTO,
-} fe_pilot_t;
+};
 
-typedef enum fe_rolloff {
+enum fe_rolloff {
 	ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
 	ROLLOFF_20,
 	ROLLOFF_25,
 	ROLLOFF_AUTO,
-} fe_rolloff_t;
+};
 
-typedef enum fe_delivery_system {
+enum fe_delivery_system {
 	SYS_UNDEFINED,
 	SYS_DVBC_ANNEX_A,
 	SYS_DVBC_ANNEX_B,
@@ -410,7 +342,7 @@ typedef enum fe_delivery_system {
 	SYS_DVBT2,
 	SYS_TURBO,
 	SYS_DVBC_ANNEX_C,
-} fe_delivery_system_t;
+};
 
 /* backward compatibility */
 #define SYS_DVBC_ANNEX_AC	SYS_DVBC_ANNEX_A
@@ -467,7 +399,7 @@ struct dtv_cmds_h {
  * @FE_SCALE_NOT_AVAILABLE: That QoS measure is not available. That
  *			    could indicate a temporary or a permanent
  *			    condition.
- * @FE_SCALE_DECIBEL: The scale is measured in 0.0001 dB steps, typically
+ * @FE_SCALE_DECIBEL: The scale is measured in 0.001 dB steps, typically
  *		  used on signal measures.
  * @FE_SCALE_RELATIVE: The scale is a relative percentual measure,
  *			ranging from 0 (0%) to 0xffff (100%).
@@ -503,20 +435,20 @@ enum fecap_scale_params {
  *
  * In other words, for ISDB, those values should be filled like:
  *	u.st.stat.svalue[0] = global statistics;
- *	u.st.stat.scale[0] = FE_SCALE_DECIBELS;
+ *	u.st.stat.scale[0] = FE_SCALE_DECIBEL;
  *	u.st.stat.value[1] = layer A statistics;
  *	u.st.stat.scale[1] = FE_SCALE_NOT_AVAILABLE (if not available);
  *	u.st.stat.svalue[2] = layer B statistics;
- *	u.st.stat.scale[2] = FE_SCALE_DECIBELS;
+ *	u.st.stat.scale[2] = FE_SCALE_DECIBEL;
  *	u.st.stat.svalue[3] = layer C statistics;
- *	u.st.stat.scale[3] = FE_SCALE_DECIBELS;
+ *	u.st.stat.scale[3] = FE_SCALE_DECIBEL;
  *	u.st.len = 4;
  */
 struct dtv_stats {
 	__u8 scale;	/* enum fecap_scale_params type */
 	union {
 		__u64 uvalue;	/* for counters and relative scales */
-		__s64 svalue;	/* for 0.0001 dB measures */
+		__s64 svalue;	/* for 0.001 dB measures */
 	};
 } __attribute__ ((packed));
 
@@ -552,10 +484,88 @@ struct dtv_properties {
 	struct dtv_property *props;
 };
 
+#if defined(__DVB_CORE__) || !defined (__KERNEL__)
+
+/*
+ * DEPRECATED: The DVBv3 ioctls, structs and enums should not be used on
+ * newer programs, as it doesn't support the second generation of digital
+ * TV standards, nor supports newer delivery systems.
+ */
+
+enum fe_bandwidth {
+	BANDWIDTH_8_MHZ,
+	BANDWIDTH_7_MHZ,
+	BANDWIDTH_6_MHZ,
+	BANDWIDTH_AUTO,
+	BANDWIDTH_5_MHZ,
+	BANDWIDTH_10_MHZ,
+	BANDWIDTH_1_712_MHZ,
+};
+
+/* This is needed for legacy userspace support */
+typedef enum fe_sec_voltage fe_sec_voltage_t;
+typedef enum fe_caps fe_caps_t;
+typedef enum fe_type fe_type_t;
+typedef enum fe_sec_tone_mode fe_sec_tone_mode_t;
+typedef enum fe_sec_mini_cmd fe_sec_mini_cmd_t;
+typedef enum fe_status fe_status_t;
+typedef enum fe_spectral_inversion fe_spectral_inversion_t;
+typedef enum fe_code_rate fe_code_rate_t;
+typedef enum fe_modulation fe_modulation_t;
+typedef enum fe_transmit_mode fe_transmit_mode_t;
+typedef enum fe_bandwidth fe_bandwidth_t;
+typedef enum fe_guard_interval fe_guard_interval_t;
+typedef enum fe_hierarchy fe_hierarchy_t;
+typedef enum fe_pilot fe_pilot_t;
+typedef enum fe_rolloff fe_rolloff_t;
+typedef enum fe_delivery_system fe_delivery_system_t;
+
+struct dvb_qpsk_parameters {
+	__u32		symbol_rate;  /* symbol rate in Symbols per second */
+	fe_code_rate_t	fec_inner;    /* forward error correction (see above) */
+};
+
+struct dvb_qam_parameters {
+	__u32		symbol_rate; /* symbol rate in Symbols per second */
+	fe_code_rate_t	fec_inner;   /* forward error correction (see above) */
+	fe_modulation_t	modulation;  /* modulation type (see above) */
+};
+
+struct dvb_vsb_parameters {
+	fe_modulation_t	modulation;  /* modulation type (see above) */
+};
+
+struct dvb_ofdm_parameters {
+	fe_bandwidth_t      bandwidth;
+	fe_code_rate_t      code_rate_HP;  /* high priority stream code rate */
+	fe_code_rate_t      code_rate_LP;  /* low priority stream code rate */
+	fe_modulation_t     constellation; /* modulation type (see above) */
+	fe_transmit_mode_t  transmission_mode;
+	fe_guard_interval_t guard_interval;
+	fe_hierarchy_t      hierarchy_information;
+};
+
+struct dvb_frontend_parameters {
+	__u32 frequency;     /* (absolute) frequency in Hz for DVB-C/DVB-T/ATSC */
+			     /* intermediate frequency in kHz for DVB-S */
+	fe_spectral_inversion_t inversion;
+	union {
+		struct dvb_qpsk_parameters qpsk;	/* DVB-S */
+		struct dvb_qam_parameters  qam;		/* DVB-C */
+		struct dvb_ofdm_parameters ofdm;	/* DVB-T */
+		struct dvb_vsb_parameters vsb;		/* ATSC */
+	} u;
+};
+
+struct dvb_frontend_event {
+	fe_status_t status;
+	struct dvb_frontend_parameters parameters;
+};
+#endif
+
 #define FE_SET_PROPERTY		   _IOW('o', 82, struct dtv_properties)
 #define FE_GET_PROPERTY		   _IOR('o', 83, struct dtv_properties)
 
-
 /**
  * When set, this flag will disable any zigzagging or other "normal" tuning
  * behaviour. Additionally, there will be no automatic monitoring of the lock
@@ -565,7 +575,6 @@ struct dtv_properties {
  */
 #define FE_TUNE_MODE_ONESHOT 0x01
 
-
 #define FE_GET_INFO		   _IOR('o', 61, struct dvb_frontend_info)
 
 #define FE_DISEQC_RESET_OVERLOAD   _IO('o', 62)
diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
index 26db20647e6f..9cac6325cc7e 100644
--- a/include/uapi/linux/v4l2-mediabus.h
+++ b/include/uapi/linux/v4l2-mediabus.h
@@ -24,6 +24,7 @@
  * @colorspace:	colorspace of the data (from enum v4l2_colorspace)
  * @ycbcr_enc:	YCbCr encoding of the data (from enum v4l2_ycbcr_encoding)
  * @quantization: quantization of the data (from enum v4l2_quantization)
+ * @xfer_func:  transfer function of the data (from enum v4l2_xfer_func)
  */
 struct v4l2_mbus_framefmt {
 	__u32			width;
@@ -33,7 +34,8 @@ struct v4l2_mbus_framefmt {
 	__u32			colorspace;
 	__u16			ycbcr_enc;
 	__u16			quantization;
-	__u32			reserved[6];
+	__u16			xfer_func;
+	__u16			reserved[11];
 };
 
 #ifndef __KERNEL__
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index fa376f7666ba..3228fbebcd63 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -178,6 +178,12 @@ enum v4l2_memory {
 
 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
 enum v4l2_colorspace {
+	/*
+	 * Default colorspace, i.e. let the driver figure it out.
+	 * Can only be used with video capture.
+	 */
+	V4L2_COLORSPACE_DEFAULT       = 0,
+
 	/* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
 	V4L2_COLORSPACE_SMPTE170M     = 1,
 
@@ -220,8 +226,56 @@ enum v4l2_colorspace {
 
 	/* BT.2020 colorspace, used for UHDTV. */
 	V4L2_COLORSPACE_BT2020        = 10,
+
+	/* Raw colorspace: for RAW unprocessed images */
+	V4L2_COLORSPACE_RAW           = 11,
+};
+
+/*
+ * Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
+ * This depends on whether this is a SDTV image (use SMPTE 170M), an
+ * HDTV image (use Rec. 709), or something else (use sRGB).
+ */
+#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
+	((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
+	 ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))
+
+enum v4l2_xfer_func {
+	/*
+	 * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
+	 * for the various colorspaces:
+	 *
+	 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
+	 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
+	 * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
+	 *
+	 * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
+	 *
+	 * V4L2_COLORSPACE_ADOBERGB: V4L2_XFER_FUNC_ADOBERGB
+	 *
+	 * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
+	 *
+	 * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
+	 */
+	V4L2_XFER_FUNC_DEFAULT     = 0,
+	V4L2_XFER_FUNC_709         = 1,
+	V4L2_XFER_FUNC_SRGB        = 2,
+	V4L2_XFER_FUNC_ADOBERGB    = 3,
+	V4L2_XFER_FUNC_SMPTE240M   = 4,
+	V4L2_XFER_FUNC_NONE        = 5,
 };
 
+/*
+ * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
+ * This depends on the colorspace.
+ */
+#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
+	((colsp) == V4L2_COLORSPACE_ADOBERGB ? V4L2_XFER_FUNC_ADOBERGB : \
+	 ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
+	  ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
+	   ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \
+	    V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709))))
+
 enum v4l2_ycbcr_encoding {
 	/*
 	 * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
@@ -266,6 +320,16 @@ enum v4l2_ycbcr_encoding {
 	V4L2_YCBCR_ENC_SMPTE240M      = 8,
 };
 
+/*
+ * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
+ * This depends on the colorspace.
+ */
+#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
+	((colsp) == V4L2_COLORSPACE_REC709 ? V4L2_YCBCR_ENC_709 : \
+	 ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
+	  ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
+	   V4L2_YCBCR_ENC_601)))
+
 enum v4l2_quantization {
 	/*
 	 * The default for R'G'B' quantization is always full range, except
@@ -278,6 +342,17 @@ enum v4l2_quantization {
 	V4L2_QUANTIZATION_LIM_RANGE   = 2,
 };
 
+/*
+ * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
+ * This depends on whether the image is RGB or not, the colorspace and the
+ * Y'CbCr encoding.
+ */
+#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \
+	(((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \
+	 (((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \
+	  (ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) ? \
+	 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
+
 enum v4l2_priority {
 	V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
 	V4L2_PRIORITY_BACKGROUND  = 1,
@@ -370,6 +445,7 @@ struct v4l2_pix_format {
 	__u32			flags;		/* format flags (V4L2_PIX_FMT_FLAG_*) */
 	__u32			ycbcr_enc;	/* enum v4l2_ycbcr_encoding */
 	__u32			quantization;	/* enum v4l2_quantization */
+	__u32			xfer_func;	/* enum v4l2_xfer_func */
 };
 
 /*      Pixel format         FOURCC                          depth  Description  */
@@ -404,6 +480,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '0', ' ') /* 10  Greyscale     */
 #define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
 #define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
+#define V4L2_PIX_FMT_Y16_BE  v4l2_fourcc_be('Y', '1', '6', ' ') /* 16  Greyscale BE  */
 
 /* Grey bit-packed formats */
 #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
@@ -810,6 +887,8 @@ struct v4l2_buffer {
 #define V4L2_BUF_FLAG_TSTAMP_SRC_MASK		0x00070000
 #define V4L2_BUF_FLAG_TSTAMP_SRC_EOF		0x00000000
 #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE		0x00010000
+/* mem2mem encoder/decoder */
+#define V4L2_BUF_FLAG_LAST			0x00100000
 
 /**
  * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
@@ -1865,6 +1944,7 @@ struct v4l2_plane_pix_format {
  * @flags:		format flags (V4L2_PIX_FMT_FLAG_*)
  * @ycbcr_enc:		enum v4l2_ycbcr_encoding, Y'CbCr encoding
  * @quantization:	enum v4l2_quantization, colorspace quantization
+ * @xfer_func:		enum v4l2_xfer_func, colorspace transfer function
  */
 struct v4l2_pix_format_mplane {
 	__u32				width;
@@ -1878,7 +1958,8 @@ struct v4l2_pix_format_mplane {
 	__u8				flags;
 	__u8				ycbcr_enc;
 	__u8				quantization;
-	__u8				reserved[8];
+	__u8				xfer_func;
+	__u8				reserved[7];
 } __attribute__ ((packed));
 
 /**