Shamusworld >> Repos - apple2/blob - src/floppy.h

   1 //\r
   2 // Apple 2 floppy disk support\r
   3 //\r
   4 \r
   5 #ifndef __FLOPPY_H__\r
   6 #define __FLOPPY_H__\r
   7 \r
   8 // MAX_PATH isn't defined in stdlib.h on *nix, so we do it here...\r
   9 #ifdef __GCCUNIX__\r
  10 #include <limits.h>\r
  11 #define MAX_PATH                _POSIX_PATH_MAX\r
  12 #else\r
  13 #include <stdlib.h>                                                             // for MAX_PATH on MinGW/Darwin\r
  14 #endif\r
  15 #include "types.h"\r
  16 \r
  17 enum { DT_UNKNOWN, DT_DOS33, DT_PRODOS, DT_NYBBLE };\r
  18 \r
  19 class FloppyDrive\r
  20 {\r
  21         public:\r
  22                 FloppyDrive();\r
  23                 ~FloppyDrive();\r
  24 \r
  25                 bool LoadImage(const char * filename, uint8 driveNum = 0);\r
  26                 bool SaveImage(uint8 driveNum = 0);\r
  27                 bool SaveImageAs(const char * filename, uint8 driveNum = 0);\r
  28                 void CreateBlankImage(uint8 driveNum = 0);\r
  29                 void SwapImages(void);\r
  30 \r
  31                 // I/O functions ($C0Ex accesses)\r
  32 \r
  33                 void ControlStepper(uint8 addr);\r
  34                 void ControlMotor(uint8 addr);\r
  35                 void DriveEnable(uint8 addr);\r
  36                 uint8 ReadWrite(void);\r
  37                 uint8 GetLatchValue(void);\r
  38                 void SetLatchValue(uint8 value);\r
  39                 void SetReadMode(void);\r
  40                 void SetWriteMode(void);\r
  41 \r
  42         protected:\r
  43                 void DetectImageType(const char * filename, uint8 driveNum);\r
  44                 void NybblizeImage(uint8 driveNum);\r
  45                 void DenybblizeImage(uint8 driveNum);\r
  46 \r
  47         private:\r
  48                 char imageName[2][MAX_PATH];\r
  49                 uint8 * disk[2];\r
  50                 uint32 diskSize[2];\r
  51                 uint8 diskType[2];\r
  52                 bool imageDirty[2];\r
  53                 uint8 motorOn;\r
  54                 uint8 activeDrive;\r
  55                 uint8 ioMode;\r
  56                 uint8 latchValue;\r
  57                 uint8 phase;\r
  58                 uint8 track;\r
  59 \r
  60                 uint8 nybblizedImage[2][232960];\r
  61                 uint32 currentPos;\r
  62 \r
  63                 // And here are some private class variables (to reduce function redundancy):\r
  64                 static uint8 header[21];\r
  65                 static uint8 doSector[16];\r
  66                 static uint8 poSector[16];\r
  67 };\r
  68 \r
  69 #endif  // __FLOPPY_H__\r