#ifndef __SAA7146_VV__
  #define __SAA7146_VV__
  
  #include <media/v4l2-common.h>
  #include <media/v4l2-ioctl.h>
  #include <media/v4l2-fh.h>
  #include <media/saa7146.h>
  #include <media/videobuf-dma-sg.h>
  
  #define MAX_SAA7146_CAPTURE_BUFFERS	32	/* arbitrary */
  #define BUFFER_TIMEOUT     (HZ/2)  /* 0.5 seconds */
  
  #define WRITE_RPS0(x) do { \
  	dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
  	} while (0);
  
  #define WRITE_RPS1(x) do { \
  	dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
  	} while (0);
  
  struct	saa7146_video_dma {
  	u32 base_odd;
  	u32 base_even;
  	u32 prot_addr;
  	u32 pitch;
  	u32 base_page;
  	u32 num_line_byte;
  };
  
  #define FORMAT_BYTE_SWAP	0x1
  #define FORMAT_IS_PLANAR	0x2
  
  struct saa7146_format {
  	char	*name;
  	u32	pixelformat;
  	u32	trans;
  	u8	depth;
  	u8	flags;
  	u8	swap;
  };
  
  struct saa7146_standard
  {
  	char          *name;
  	v4l2_std_id   id;
  
  	int v_offset;	/* number of lines of vertical offset before processing */
  	int v_field;	/* number of lines in a field for HPS to process */
  
  	int h_offset;	/* horizontal offset of processing window */
  	int h_pixels;	/* number of horizontal pixels to process */
  
  	int v_max_out;
  	int h_max_out;
  };
  
  /* buffer for one video/vbi frame */
  struct saa7146_buf {
  	/* common v4l buffer stuff -- must be first */
  	struct videobuf_buffer vb;
  
  	/* saa7146 specific */
  	struct v4l2_pix_format  *fmt;
  	int (*activate)(struct saa7146_dev *dev,
  			struct saa7146_buf *buf,
  			struct saa7146_buf *next);
  
  	/* page tables */
  	struct saa7146_pgtable  pt[3];
  };
  
  struct saa7146_dmaqueue {
  	struct saa7146_dev	*dev;
  	struct saa7146_buf	*curr;
  	struct list_head	queue;
  	struct timer_list	timeout;
  };
  
  struct saa7146_overlay {
  	struct saa7146_fh	*fh;
  	struct v4l2_window	win;
  	struct v4l2_clip	clips[16];
  	int			nclips;
  };
  
  /* per open data */
  struct saa7146_fh {
  	/* Must be the first field! */
  	struct v4l2_fh		fh;
  	struct saa7146_dev	*dev;
  
  	/* video capture */
  	struct videobuf_queue	video_q;
  
  	/* vbi capture */
  	struct videobuf_queue	vbi_q;
  
  	unsigned int resources;	/* resource management for device open */
  };
  
  #define STATUS_OVERLAY	0x01
  #define STATUS_CAPTURE	0x02
  
  struct saa7146_vv
  {
  	/* vbi capture */
  	struct saa7146_dmaqueue		vbi_dmaq;
  	struct v4l2_vbi_format		vbi_fmt;
  	struct timer_list		vbi_read_timeout;
  	/* vbi workaround interrupt queue */
  	wait_queue_head_t		vbi_wq;
  	int				vbi_fieldcount;
  	struct saa7146_fh		*vbi_streaming;
  
  	int				video_status;
  	struct saa7146_fh		*video_fh;
  
  	/* video overlay */
  	struct saa7146_overlay		ov;
  	struct v4l2_framebuffer		ov_fb;
  	struct saa7146_format		*ov_fmt;
  	struct saa7146_fh		*ov_suspend;
  
  	/* video capture */
  	struct saa7146_dmaqueue		video_dmaq;
  	struct v4l2_pix_format		video_fmt;
  	enum v4l2_field			last_field;
  
  	/* common: fixme? shouldn't this be in saa7146_fh?
  	   (this leads to a more complicated question: shall the driver
  	   store the different settings (for example S_INPUT) for every open
  	   and restore it appropriately, or should all settings be common for
  	   all opens? currently, we do the latter, like all other
  	   drivers do... */
  	struct saa7146_standard	*standard;
  
  	int	vflip;
  	int	hflip;
  	int	current_hps_source;
  	int	current_hps_sync;
  
  	struct saa7146_dma	d_clipping;	/* pointer to clipping memory */
  
  	unsigned int resources;	/* resource management for device */
  };
  
  /* flags */
  #define SAA7146_USE_PORT_B_FOR_VBI	0x2     /* use input port b for vbi hardware bug workaround */
  
  struct saa7146_ext_vv
  {
  	/* informations about the video capabilities of the device */
  	int	inputs;
  	int	audios;
  	u32	capabilities;
  	int	flags;
  
  	/* additionally supported transmission standards */
  	struct saa7146_standard *stds;
  	int num_stds;
  	int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
  
  	/* the extension can override this */
  	struct v4l2_ioctl_ops vid_ops;
  	struct v4l2_ioctl_ops vbi_ops;
  	/* pointer to the saa7146 core ops */
  	const struct v4l2_ioctl_ops *core_ops;
  
  	struct v4l2_file_operations vbi_fops;
  };
  
  struct saa7146_use_ops  {
  	void (*init)(struct saa7146_dev *, struct saa7146_vv *);
  	int(*open)(struct saa7146_dev *, struct file *);
  	void (*release)(struct saa7146_dev *, struct file *);
  	void (*irq_done)(struct saa7146_dev *, unsigned long status);
  	ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
  };
  
  /* from saa7146_fops.c */
  int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type);
  int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev);
  void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
  void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
  int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
  void saa7146_buffer_timeout(unsigned long data);
  void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
  						struct saa7146_buf *buf);
  
  int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
  int saa7146_vv_release(struct saa7146_dev* dev);
  
  /* from saa7146_hlp.c */
  int saa7146_enable_overlay(struct saa7146_fh *fh);
  void saa7146_disable_overlay(struct saa7146_fh *fh);
  
  void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
  void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
  void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
  void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
  
  /* from saa7146_video.c */
  extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
  extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops;
  extern struct saa7146_use_ops saa7146_video_uops;
  int saa7146_start_preview(struct saa7146_fh *fh);
  int saa7146_stop_preview(struct saa7146_fh *fh);
  long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
  int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);
  
  /* from saa7146_vbi.c */
  extern struct saa7146_use_ops saa7146_vbi_uops;
  
  /* resource management functions */
  int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
  void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
  
  #define RESOURCE_DMA1_HPS	0x1
  #define RESOURCE_DMA2_CLP	0x2
  #define RESOURCE_DMA3_BRS	0x4
  
  /* saa7146 source inputs */
  #define SAA7146_HPS_SOURCE_PORT_A	0x00
  #define SAA7146_HPS_SOURCE_PORT_B	0x01
  #define SAA7146_HPS_SOURCE_YPB_CPA	0x02
  #define SAA7146_HPS_SOURCE_YPA_CPB	0x03
  
  /* sync inputs */
  #define SAA7146_HPS_SYNC_PORT_A		0x00
  #define SAA7146_HPS_SYNC_PORT_B		0x01
  
  /* some memory sizes */
  /* max. 16 clipping rectangles */
  #define SAA7146_CLIPPING_MEM	(16 * 4 * sizeof(u32))
  
  /* some defines for the various clipping-modes */
  #define SAA7146_CLIPPING_RECT		0x4
  #define SAA7146_CLIPPING_RECT_INVERTED	0x5
  #define SAA7146_CLIPPING_MASK		0x6
  #define SAA7146_CLIPPING_MASK_INVERTED	0x7
  
  /* output formats: each entry holds four informations */
  #define RGB08_COMPOSED	0x0217 /* composed is used in the sense of "not-planar" */
  /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
  #define RGB15_COMPOSED	0x0213
  #define RGB16_COMPOSED	0x0210
  #define RGB24_COMPOSED	0x0201
  #define RGB32_COMPOSED	0x0202
  
  #define Y8			0x0006
  #define YUV411_COMPOSED		0x0003
  #define YUV422_COMPOSED		0x0000
  /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
  #define YUV411_DECOMPOSED	0x100b
  #define YUV422_DECOMPOSED	0x1009
  #define YUV420_DECOMPOSED	0x100a
  
  #define IS_PLANAR(x) (x & 0xf000)
  
  /* misc defines */
  #define SAA7146_NO_SWAP		(0x0)
  #define SAA7146_TWO_BYTE_SWAP	(0x1)
  #define SAA7146_FOUR_BYTE_SWAP	(0x2)
  
  #endif