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 namespace MZ3500 {
  24
  25 class KEYBOARD : public DEVICE
  26 {
  27 private:
  28         DEVICE *d_subcpu, *d_ls244;
  29         const uint8_t *key_stat;
  30
  31         FIFO *key_buf;
  32         int phase;
  33         uint16_t send_data;
  34         uint32_t stc_clock;
  35         uint8_t recv_data;
  36         bool recv_ok;
  37         bool stc, dc;
  38         bool caps, kana;
  39         bool pro_mode;
  40
  41         void drive();
  42         void set_stk(bool value);
  43         void set_dk(bool value);
  44
  45 public:
  46         KEYBOARD(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  47         {
  48                 set_device_name(_T("Keyboard"));
  49         }
  50         ~KEYBOARD() {}
  51
  52         // common functions
  53         void initialize();
  54         void release();
  55         void reset();
  56         void write_signal(int id, uint32_t data, uint32_t mask);
  57         void event_callback(int event_id, int err);
  58         void event_frame();
  59         bool process_state(FILEIO* state_fio, bool loading);
  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 }
  83 #endif