source/src/vm/mz3500/keyboard.h

   1 /*
   2         SHARP MZ-5500 Emulator 'EmuZ-5500'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2008.04.10 -
   6
   7         [ keyboard ]
   8 */
   9
  10 #ifndef _KEYBOARD_H_
  11 #define _KEYBOARD_H_
  12
  13 #include "../vm.h"
  14 #include "../../emu.h"
  15 #include "../device.h"
  16
  17 #define SIG_KEYBOARD_ACKC       0
  18 #define SIG_KEYBOARD_STC        1
  19 #define SIG_KEYBOARD_DC         2
  20
  21 class FIFO;
  22
  23 class KEYBOARD : public DEVICE
  24 {
  25 private:
  26         DEVICE *d_subcpu, *d_ls244;
  27         const uint8_t *key_stat;
  28
  29         FIFO *key_buf;
  30         int phase;
  31         uint16_t send_data;
  32         uint32_t stc_clock;
  33         uint8_t recv_data;
  34         bool recv_ok;
  35         bool stc, dc;
  36         bool caps, kana;
  37         bool pro_mode;
  38
  39         void drive();
  40         void set_stk(bool value);
  41         void set_dk(bool value);
  42
  43 public:
  44         KEYBOARD(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  45         {
  46                 set_device_name(_T("Keyboard"));
  47         }
  48         ~KEYBOARD() {}
  49
  50         // common functions
  51         void initialize();
  52         void release();
  53         void reset();
  54         void write_signal(int id, uint32_t data, uint32_t mask);
  55         void event_callback(int event_id, int err);
  56         void event_frame();
  57         void decl_state();
  58         void save_state(FILEIO* state_fio);
  59         bool load_state(FILEIO* state_fio);
  60
  61         // unique functions
  62         void set_context_subcpu(DEVICE* device)
  63         {
  64                 d_subcpu = device;
  65         }
  66         void set_context_ls244(DEVICE* device)
  67         {
  68                 d_ls244 = device;
  69         }
  70         void key_down(int code);
  71         void key_up(int code);
  72         bool get_caps_locked()
  73         {
  74                 return caps;
  75         }
  76         bool get_kana_locked()
  77         {
  78                 return kana;
  79         }
  80 };
  81
  82 #endif