source/src/vm/fmr30/scsi.h

   1 /*
   2         FUJITSU FMR-30 Emulator 'eFMR-30'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2016.03.04-
   6
   7         [ scsi ]
   8 */
   9
  10 #ifndef _SCSI_H_
  11 #define _SCSI_H_
  12
  13 #include "../vm.h"
  14 #include "../../emu.h"
  15 #include "../device.h"
  16
  17 #define SIG_SCSI_IRQ    0
  18 #define SIG_SCSI_DRQ    1
  19 #define SIG_SCSI_TC     2
  20
  21 class SCSI : public DEVICE
  22 {
  23 private:
  24         DEVICE *d_dma, *d_pic, *d_host;
  25
  26         uint8_t ctrl_reg, intm_reg;
  27         bool phase_status, eop_status;
  28
  29 public:
  30         SCSI(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu) {
  31                 set_device_name(_T("SCSI I/F"));
  32         }
  33         ~SCSI() {}
  34
  35         // common functions
  36         void reset();
  37         void write_io8(uint32_t addr, uint32_t data);
  38         uint32_t read_io8(uint32_t addr);
  39         void write_signal(int id, uint32_t data, uint32_t mask);
  40         bool process_state(FILEIO* state_fio, bool loading);
  41
  42         // unique functions
  43         void set_context_dma(DEVICE* device)
  44         {
  45                 d_dma = device;
  46         }
  47         void set_context_pic(DEVICE* device)
  48         {
  49                 d_pic = device;
  50         }
  51         void set_context_host(DEVICE* device)
  52         {
  53                 d_host = device;
  54         }
  55         void decl_state();
  56         void save_state(FILEIO* state_fio);
  57         bool load_state(FILEIO* state_fio);
  58 };
  59
  60 #endif
  61