sys/dev/scd/scdvar.h

   1 /*
   2  * $FreeBSD$
   3  */
   4
   5 struct scd_mbx {
   6         short           retry;
   7         short           nblk;
   8         int             sz;
   9         u_long          skip;
  10         struct bio *    bp;
  11         short           count;
  12 };
  13
  14 struct scd_data {
  15         char                    double_speed;
  16         char *                  name;
  17         short                   flags;
  18         int                     blksize;
  19         u_long                  disksize;
  20         int                     openflag;
  21         struct {
  22                 unsigned int    adr :4;
  23                 unsigned int    ctl :4; /* xcdplayer needs this */
  24                 unsigned char   start_msf[3];
  25         } toc[MAX_TRACKS];
  26         short                   first_track;
  27         short                   last_track;
  28         struct  ioc_play_msf    last_play;
  29
  30         short                   audio_status;
  31         struct bio_queue_head   head;        /* head of bio queue */
  32         struct scd_mbx          mbx;
  33 };
  34
  35 struct scd_softc {
  36         device_t                dev;
  37         struct cdev *scd_dev_t;
  38         int                     debug;
  39
  40         struct resource *       port;
  41         int                     port_rid;
  42         int                     port_type;
  43         bus_space_tag_t         port_bst;
  44         bus_space_handle_t      port_bsh;
  45
  46         struct mtx              mtx;
  47
  48         struct callout_handle   ch;
  49         int                     ch_state;
  50         struct scd_mbx *        ch_mbxsave;
  51
  52         struct scd_data         data;
  53 };
  54
  55 #define SCD_LOCK(_sc)           splx(&(_sc)->mtx
  56 #define SCD_UNLOCK(_sc)         splx(&(_sc)->mtx
  57
  58 #define SCD_READ(_sc, _reg) \
  59         bus_space_read_1(_sc->port_bst, _sc->port_bsh, _reg)
  60 #define SCD_READ_MULTI(_sc, _reg, _addr, _count) \
  61         bus_space_read_multi_1(_sc->port_bst, _sc->port_bsh, _reg, _addr, _count)
  62 #define SCD_WRITE(_sc, _reg, _val) \
  63         bus_space_write_1(_sc->port_bst, _sc->port_bsh, _reg, _val)
  64
  65 int     scd_probe       (struct scd_softc *);
  66 int     scd_attach      (struct scd_softc *);