include/ps2.hpp

   1 #ifndef PS2_HPP
   2 #define PS2_HPP
   3
   4 #include "device.hpp"
   5 #include "pin.hpp"
   6 #include "util.hpp"
   7
   8 #define PS2_QUEUE_SIZE 256
   9
  10 class PS2Controller;
  11 class PS2Device;
  12
  13 class PS2Controller
  14 {
  15 public:
  16     virtual void data_ready(PS2Device *device) = 0;
  17 };
  18
  19 class PS2Device : public Device
  20 {
  21 public:
  22     virtual ~PS2Device(void) = 0;
  23
  24     virtual void write(int val) = 0;
  25     uint32_t read(void);
  26     bool can_read(void);
  27
  28     virtual void pickle(Marshaller *m, const char *name);
  29     virtual void reset(void);
  30
  31     void queue(int b);
  32
  33     Socket<PS2Controller> bus;
  34
  35 protected:
  36     bool queue_has_space(int count);
  37
  38     int32_t write_cmd;
  39
  40 private:
  41     Array<uint8_t, PS2_QUEUE_SIZE> data;
  42     int rptr, wptr, count;
  43 };
  44
  45 #endif