V4L/DVB (5307): Add support for the cx23415 MPEG decoding features.

The cx23415 adds some extra features that this DVB decoding API did
not support. This API has been expanded to support the required
features. Both source and binary backwards compatibility is kept
intact by these changes. So existing applications are not affected.

Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Ralph Metzler <[e-mail]>
Signed-off-by: Oliver Endriss <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/dvb/ttpci/av7110_av.c

···
 		if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 			ret = av7110_av_stop(av7110, RP_VIDEO);
 		else
-			ret = vidcom(av7110, VIDEO_CMD_STOP,
+			ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
 			       av7110->videostate.video_blank ? 0 : 1);
 		if (!ret)
 			av7110->trickmode = TRICK_NONE;
···
 		av7110->trickmode = TRICK_NONE;
 		if (av7110->videostate.play_state == VIDEO_FREEZED) {
 			av7110->videostate.play_state = VIDEO_PLAYING;
-			ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
+			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
 			if (ret)
 				break;
 		}
···
 			ret = av7110_av_start_play(av7110, RP_VIDEO);
 		}
 		if (!ret)
-			ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
+			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
 		if (!ret)
 			av7110->videostate.play_state = VIDEO_PLAYING;
 		break;
···
 		if (av7110->playing & RP_VIDEO)
 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
 		else
-			ret = vidcom(av7110, VIDEO_CMD_FREEZE, 1);
+			ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
 		if (!ret)
 			av7110->trickmode = TRICK_FREEZE;
 		break;
···
 		if (av7110->playing & RP_VIDEO)
 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
 		if (!ret)
-			ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
+			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
 		if (!ret) {
 			av7110->videostate.play_state = VIDEO_PLAYING;
 			av7110->trickmode = TRICK_NONE;
···
 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
 					    __Scan_I, 2, AV_PES, 0);
 		else
-			ret = vidcom(av7110, VIDEO_CMD_FFWD, arg);
+			ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
 		if (!ret) {
 			av7110->trickmode = TRICK_FAST;
 			av7110->videostate.play_state = VIDEO_PLAYING;
···
 		if (av7110->playing&RP_VIDEO) {
 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
 			if (!ret)
-				ret = vidcom(av7110, VIDEO_CMD_SLOW, arg);
+				ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
 		} else {
-			ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
+			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
 			if (!ret)
-				ret = vidcom(av7110, VIDEO_CMD_STOP, 0);
+				ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
 			if (!ret)
-				ret = vidcom(av7110, VIDEO_CMD_SLOW, arg);
+				ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
 		}
 		if (!ret) {
 			av7110->trickmode = TRICK_SLOW;
···
 				ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
 						    __Slow, 2, 0, 0);
 				if (!ret)
-					ret = vidcom(av7110, VIDEO_CMD_SLOW, arg);
+					ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
 			}
 			if (av7110->trickmode == TRICK_FREEZE)
-				ret = vidcom(av7110, VIDEO_CMD_STOP, 1);
+				ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
 		}
 		break;
 

drivers/media/dvb/ttpci/av7110_hw.h

···
 #define VID_CENTRE_CUT_PREF	0x05	/* PanScan with zero vector */
 
 /* MPEG video decoder commands */
-#define VIDEO_CMD_STOP		0x000e
-#define VIDEO_CMD_PLAY		0x000d
-#define VIDEO_CMD_FREEZE	0x0102
-#define VIDEO_CMD_FFWD		0x0016
-#define VIDEO_CMD_SLOW		0x0022
+#define AV_VIDEO_CMD_STOP	0x000e
+#define AV_VIDEO_CMD_PLAY	0x000d
+#define AV_VIDEO_CMD_FREEZE	0x0102
+#define AV_VIDEO_CMD_FFWD	0x0016
+#define AV_VIDEO_CMD_SLOW	0x0022
 
 /* MPEG audio decoder commands */
 #define AUDIO_CMD_MUTE		0x0001

include/linux/dvb/audio.h

···
 typedef enum {
 	AUDIO_STEREO,
 	AUDIO_MONO_LEFT,
-	AUDIO_MONO_RIGHT
+	AUDIO_MONO_RIGHT,
+	AUDIO_MONO,
+	AUDIO_STEREO_SWAPPED
 } audio_channel_select_t;
 
 
···
  * extracted by the PES parser.
  */
 #define AUDIO_GET_PTS              _IOR('o', 19, __u64)
+#define AUDIO_BILINGUAL_CHANNEL_SELECT _IO('o', 20)
 
 #endif /* _DVBAUDIO_H_ */

include/linux/dvb/version.h

···
 #define _DVBVERSION_H_
 
 #define DVB_API_VERSION 3
-#define DVB_API_VERSION_MINOR 1
+#define DVB_API_VERSION_MINOR 2
 
 #endif /*_DVBVERSION_H_*/

include/linux/dvb/video.h

···
 } video_play_state_t;
 
 
+/* Decoder commands */
+#define VIDEO_CMD_PLAY        (0)
+#define VIDEO_CMD_STOP        (1)
+#define VIDEO_CMD_FREEZE      (2)
+#define VIDEO_CMD_CONTINUE    (3)
+
+/* Flags for VIDEO_CMD_FREEZE */
+#define VIDEO_CMD_FREEZE_TO_BLACK     	(1 << 0)
+
+/* Flags for VIDEO_CMD_STOP */
+#define VIDEO_CMD_STOP_TO_BLACK      	(1 << 0)
+#define VIDEO_CMD_STOP_IMMEDIATELY     	(1 << 1)
+
+/* Play input formats: */
+/* The decoder has no special format requirements */
+#define VIDEO_PLAY_FMT_NONE         (0)
+/* The decoder requires full GOPs */
+#define VIDEO_PLAY_FMT_GOP          (1)
+
+/* The structure must be zeroed before use by the application
+   This ensures it can be extended safely in the future. */
+struct video_command {
+	__u32 cmd;
+	__u32 flags;
+	union {
+		struct {
+			__u64 pts;
+		} stop;
+
+		struct {
+			__u32 speed;
+			__u32 format;
+		} play;
+
+		struct {
+			__u32 data[16];
+		} raw;
+	};
+};
+
+
 struct video_event {
 	int32_t type;
 #define VIDEO_EVENT_SIZE_CHANGED	1
 #define VIDEO_EVENT_FRAME_RATE_CHANGED	2
+#define VIDEO_EVENT_DECODER_STOPPED 	3
+#define VIDEO_EVENT_VSYNC 		4
 	time_t timestamp;
 	union {
 		video_size_t size;
···
  * extracted by the PES parser.
  */
 #define VIDEO_GET_PTS              _IOR('o', 57, __u64)
+
+/* Read the number of displayed frames since the decoder was started */
+#define VIDEO_GET_FRAME_COUNT  	   _IOR('o', 58, __u64)
+
+#define VIDEO_COMMAND     	   _IOWR('o', 59, struct video_command)
+#define VIDEO_TRY_COMMAND 	   _IOWR('o', 60, struct video_command)
 
 #endif /*_DVBVIDEO_H_*/