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vbi.h

#ifndef VBI_H
#define VBI_H

#include "vt.h"
#include "dllist.h"
#include "cache.h"
#include "lang.h"

#define PLL_ADJUST      4

struct raw_page
{
    struct vt_page page[1];
    struct enhance enh[1];
};

struct vbi
{
    int fd;
    struct cache *cache;
    struct dl_head clients[1];
    /*  raw buffer management */
    int bufsize;                /*  nr of bytes sent by this device */
    int bpl;                    /*  bytes per line */
    u32 seq;
    /*  page assembly */
    struct raw_page rpage[8];   /*  one for each magazin */
    struct raw_page *ppage;     /*  points to page of previous pkt0 */
    /*  phase correction */
    int pll_fixed;              /*  0 = auto, 1..2*PLL_ADJUST+1 = fixed */
    int pll_adj;
    int pll_dir;
    int pll_cnt;
    int pll_err, pll_lerr;
    /*  v4l2 decoder data */
    int bpb;                    /*  bytes per bit * 2^16 */
    int bp8bl, bp8bh;           /*  bytes per 8-bit low/high */
    int soc, eoc;               /*  start/end of clock run-in */
};

struct vbi_client
{
    struct dl_node node[1];
    void (*handler)(void *data, struct vt_event *ev);
    void *data;
};

struct vbi *vbi_open(char *vbi_dev_name, struct cache *ca, int fine_tune,
                                                                int big_buf);
void vbi_close(struct vbi *vbi);
void vbi_reset(struct vbi *vbi);
int vbi_add_handler(struct vbi *vbi, void *handler, void *data);
void vbi_del_handler(struct vbi *vbi, void *handler, void *data);
struct vt_page *vbi_query_page(struct vbi *vbi, int pgno, int subno);
void vbi_pll_reset(struct vbi *vbi, int fine_tune);

#endif

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