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#ifndef GLKPROTO_H
#define GLKPROTO_H
/* Necessary pre-defines */
#include <termios.h>
/* Protocol values */
extern unsigned char GLKCommand ;
extern unsigned char GLKConfirm ;
extern unsigned char GLKDeny ;
extern unsigned char GLKBufferFull ;
extern unsigned char GLKBufferEmpty ;
#define GLKFLOW_OK (0)
#define GLKFLOW_STOPPED (1)
#define GLKFLOW_DISABLE (-1)
/* Structure to hold various information about a
* device
*/
#define UNGETBUFSIZE (16)
typedef struct {
int fd ;
struct termios saved ;
int flow ;
int timeout ;
int ungetin, ungetout ;
unsigned char ungetbuf[UNGETBUFSIZE] ;
} GLKDisplay ;
/* Quote from Matrix Orbital GLK users manual:
*
* ... during file downloads, the modules may need
* to spend considerable time moving files to make
* room for the new file. This delay during download
* can be as much as a minute, but generally it will
* not exceed 10 seconds.
*/
/* Default timeout = 25.4 seconds */
#define GLK_TIMEOUT (254)
/* Functions */
GLKDisplay * glkopen( char * name, tcflag_t speed );
int glktimeout( GLKDisplay * fd, int timeout );
int glkclose( GLKDisplay * );
int glkput_confirm( GLKDisplay * fd, int c );
int glkputa_confirm( GLKDisplay * fd, int len, unsigned char * str );
int glkput_echo( GLKDisplay * fd, int c );
int glkputl( GLKDisplay * fd, ... );
int glkputa( GLKDisplay * fd, int len, unsigned char * str );
int glkputs( GLKDisplay * fd, char * str );
int glkput( GLKDisplay * fd, int c );
int glkget( GLKDisplay * fd );
int glkgetc( GLKDisplay * fd );
int glkpoll( GLKDisplay * fd, int timeout );
int glkflow( GLKDisplay * fd, int full, int empty );
int glkunget( GLKDisplay * fd, int c );
#endif
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