file: slh.h


#include <linux/ioctl.h>

/*
 * Macros to help debugging
 */

#undef PDEBUG             /* undef it, just in case */
#ifdef SLH_DEBUG
     /* This one if debugging is on, and kernel space */
#    define SLHDEBUG(fmt, args...) printk( KERN_CRIT "SLH: " fmt, ## args)
#  else
     /* This one for user space */
#    define PDEBUG(fmt, args...) fprintf(stderr, fmt, ## args)
#  endif
#else
#  define SLHDEBUG(fmt, args...) /* not debugging: nothing */
#  define PDEBUG(fmt, args...) /* not debugging: nothing */
#endif

#undef PDEBUGG
#define PDEBUGG(fmt, args...) /* nothing: it's a placeholder */


#define SLH_MAJOR 0   /* dynamic major by default */


/*
 * Ioctl definitions
 */

#define SLH_IOC_MAGIC  'K'

#define SLH_IOCRESET    _IO(SLH_IOC_MAGIC, 0)
#define SLH_IOCPUMP     _IO(SLH_IOC_MAGIC, 1)
#define SLH_IOCPARAMS   _IO(SLH_IOC_MAGIC, 2)
#define SLH_IOCREAD     _IO(SLH_IOC_MAGIC, 3)
#define SLH_IOCSET      _IO(SLH_IOC_MAGIC, 4)

#define NUM_DMX_CHANS   512

typedef struct {
	unsigned long channel;    /* DMX-512 channel */
	unsigned long new_value;  /* new channel value */
	unsigned long transition; /* transition time to new value */
} CHAN_VALUE;

typedef struct {
	unsigned long num_chan;
	CHAN_VALUE    chan_value[NUM_DMX_CHANS];
} DMX_CHANNELS;

#define CHAN_STRUCT_SZ( num ) \
    ( sizeof(DMX_CHANNELS) - (NUM_DMX_CHANS-(num))*sizeof(CHAN_VALUE) )


/* board.c */
extern int  slh_board_mod_init();
extern void slh_board_mod_cleanup();
extern int  slh_board_find();
extern int  slh_board_pump( unsigned char *, unsigned long );
extern int  slh_board_pump_parms();
extern int  slh_board_start();
extern int  slh_board_stop();
extern void slh_board_chan_set( unsigned long, unsigned long );

/* channel.c */
extern int  slh_channel_mod_init();
extern void slh_channel_mod_cleanup();
extern void slh_channel_dim( unsigned long, unsigned long, unsigned long );
extern void slh_channel_timeout( unsigned long );
extern void slh_channel_timer_start();
extern void slh_channel_timer_stop();
extern int  slh_channel_load();
extern void slh_channel_read( unsigned char * );

#endif



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