3dcam-headers/pcdrv.c

#include "pcdrv.h"

int waitForSIODone( int * flag ){
    
    // This should wait for a signal from the SIO to tell when it's done 
    // Returns val < 0 if wrong
    
    uint timeOut = 1000;
    
    int result  = 0;
    
    for ( uint t = 0; t < timeOut; t ++){
        
        if ( * flag == 1 ){
     
            result = * flag;
            
            break;
        }
        
    }
    
    return result;

};

void PCload( u_long * loadAddress, u_short * flagAddress, const char * filename ) {
    
  // Send filename , load address, and flag address
  // flag address points to an int16 that when set to 1 enable lvl/pointers/screen refresh
  // Returns 1 if all good, 0 else

  //~ int flag = 0;

  printf("load:%08x:%08x:%s", loadAddress, flagAddress, filename);
  
  //~ return ; // If all is well, returns a positive int . If -1, wrong

};

//~ int PCopen(const char * filename, int attributes) {
    
  //~ // Send filename and attributes (ro,wo,rw..)
  //~ // expects an int referring to a file descriptor on the PC 

  //~ int fd = 0; // File Descriptor https://en.wikipedia.org/wiki/File_descriptor

  //~ printf("open:%s:%i:%08x", filename, attributes, &fd);
  
  //~ waitForSIODone(0);
  
  //~ return fd; // If all is well, returns a positive int . If -1, wrong

//~ };

//~ int PCcreate(const char * filename, int attributes) {
    
  //~ // Send filename and attributes (ro,wo,rw..)
  //~ // expects an int referring to a file descriptor on the PC 

  //~ int fd = 0; // File Descriptor https://en.wikipedia.org/wiki/File_descriptor

  //~ printf("create:%s:%i:%08x", filename, attributes, &fd);
  
  //~ waitForSIODone(5); // Should return int fd, -1 else
  
  //~ return fd; // If all is well, returns a positive int . If -1, wrong

//~ };

//~ int PCclose( int fd ) {
  
  //~ // Send the close command and fd as int

  //~ printf("close:%d", fd);
  
  //~ return waitForSIODone(1); // Should return 1 if ok, 0 if wrong, or -1 if wrong ?

//~ };

//~ int PCseek( int fd, int offset, int accessMode){
  
  //~ // Move file pointer in fd at offset
  //~ // Access mode can be 0 abs, 1 rel to start, 2 rel to end 

  //~ printf("seek:%i:%08x:%i", fd, offset, accessMode);
  
  //~ return waitForSIODone(2);
    
//~ };

//~ int PCread( int fd, int len, char * buffer ){
  
  //~ // Read len bytes of fd and put them in buff

  //~ int count = 0;

  //~ printf("read:%i:%08x:%i", fd, len, buffer, count);
  
  //~ waitForSIODone(3);
  
  //~ return count;
    
//~ };