ddl_lib.hh

#ifndef _DDL_LIB_H_
#define _DDL_LIB_H_

#include <RORC/rorc_lib.h>      // for the descriptors

#include "rb.hh"

class ddlDriver : public rb {
public:
        ddlDriver(int board, int channel, int fifo_cou, u_int buff_bytes) ;
        ~ddlDriver() { ; } ;

        int open(char *vbuff = 0, u_int pbuff = 0) ;    // open device
        int open_23(char *vbuff = 0, u_int pbuff = 0) ; // open device
        int init() ; // new for FY23 & TPX
        void close() ;  // close device

        int start(u_int what=4) ;       // start run
        int stop() ;    // stop run


        int cmd(u_char cmd, u_int param=0, u_int dest=4) ;                      // send a command and wait ?
        int read(u_int param=0) ;               // this just issues the STBRD command!

        int write(char *inbuff, int bytes, int no_delay=0, int param=0) ;       // write something to the device

        int link_check() ;

        int busy() ;

        int mark(char *addr, u_int how) ;
        int get(char **addr, u_int *status) ;           // returns word count; 0 for no data; negative for error
        int get_priority(char **addr, u_int *status, int *ix=0) ;               // returns word count; 0 for no data; negative for error
        int free(char *addr) ;          // return the particular buffer to the free pile
        int free_ix(int ix) ;

        int get_free_fifos() ;

        void emu_place_event(int ix, char *data, int bytes) ;
        void emu_go() ;

        u_int status ;  // bitmask: xxx1=requested; xx1x=opened; x1xx=error
//      u_int alloced ; // how many bytes we used of physmem...
        int start_ix ;

        unsigned int fifo_order[128] ;
        unsigned int fifo_order_cou ;

private:
        // from the initializer
//      char *buff ;
        u_int phys_buff ;
//      int fifo_cou ;
//      u_int buff_bytes ;
        
//      int board ;     // board:       0,1,2
//      int ch ;        // channel:     0=lower fiber,1=upper fiber

        rorcDescriptor_t dev ;
        int board_23 ;
        int ch_23 ;

        // storage
//      volatile rorcReadyFifo_t *sfifo ;
        volatile u_int sfifo_p ;

//      char *sbuff ;
        u_int sbuff_p ;

//      volatile rorcReadyFifo_t *rfifo ;
        volatile u_int rfifo_p ;

//      char *rbuff ;
        u_int rbuff_p ;


        int set_base(char *vbuff, u_int pbuff) ;
} ;


#endif