iodev/serial_raw.h

   1 /////////////////////////////////////////////////////////////////////////
   2 // $Id: serial_raw.h,v 1.13 2007/11/03 16:47:49 vruppert Exp $
   3 /////////////////////////////////////////////////////////////////////////
   4 //
   5
   6 #if USE_RAW_SERIAL
   7
   8 #ifdef __linux__
   9 #include <linux/serial.h>
  10 #endif
  11
  12 #ifdef WIN32
  13 // experimental raw serial receive support on win32
  14 //#define WIN32_RECEIVE_RAW
  15 #endif
  16
  17 #define P_NONE  0
  18 #define P_ODD   1
  19 #define P_EVEN  2
  20 #define P_HIGH  3
  21 #define P_LOW   4
  22
  23 #define RAW_EVENT_BREAK    -1
  24 #define RAW_EVENT_CTS_ON   -2
  25 #define RAW_EVENT_CTS_OFF  -3
  26 #define RAW_EVENT_DSR_ON   -4
  27 #define RAW_EVENT_DSR_OFF  -5
  28 #define RAW_EVENT_RING_ON  -6
  29 #define RAW_EVENT_RING_OFF -7
  30 #define RAW_EVENT_RLSD_ON  -8
  31 #define RAW_EVENT_RLSD_OFF -9
  32 #define RAW_EVENT_FRAME   -10
  33 #define RAW_EVENT_OVERRUN -11
  34 #define RAW_EVENT_PARITY  -12
  35
  36 #define THREAD_RX_BUFSIZE 8192
  37 #define RX_BUFSIZE 256
  38
  39 class serial_raw : public logfunctions {
  40 public:
  41     serial_raw(const char *devname);
  42     virtual ~serial_raw();
  43     void set_baudrate(int rate);
  44     void set_data_bits(int);
  45     void set_stop_bits(int);
  46     void set_parity_mode(int mode);
  47     void set_break(int mode);
  48     void set_modem_control(int ctrl);
  49     int get_modem_status();
  50     void transmit(Bit8u byte);
  51     bx_bool ready_transmit();
  52     bx_bool ready_receive();
  53     int receive ();
  54 #ifdef WIN32_RECEIVE_RAW
  55     void serial_thread();
  56 #endif
  57
  58   private:
  59     void setup_port();
  60 #ifdef WIN32_RECEIVE_RAW
  61     void enq_event(Bit16s event);
  62 #endif
  63     bx_bool present;
  64     unsigned rxdata_count;
  65 #ifdef WIN32
  66     HANDLE hCOM;
  67     DCB dcb;
  68     BOOL DCBchanged;
  69     DWORD MSR_value;
  70     Bit16s rxdata_buffer[RX_BUFSIZE];
  71 #ifdef WIN32_RECEIVE_RAW
  72     HANDLE hRawSerialThread;
  73     BOOL thread_active;
  74     BOOL thread_quit;
  75     OVERLAPPED rx_ovl;
  76     OVERLAPPED thread_ovl;
  77     unsigned thread_rxdata_count;
  78     Bit16s thread_rxdata_buffer[THREAD_RX_BUFSIZE];
  79 #endif
  80 #endif
  81 };
  82 #endif