Cleaned up compile on Win32 for MS/TP datalink. Still not reliable yet.

bacnet-stack/ports/win32/dlmstp.c

@@ -22,6 +22,7 @@
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 *********************************************************************/
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <stddef.h>
@@ -39,6 +40,7 @@
 #include "npdu.h"
 #include "bits.h"
 #include "ringbuf.h"
+#include "timer.h"
 
 #define WIN32_LEAN_AND_MEAN
 #define STRICT 1
@@ -70,33 +72,16 @@ static uint16_t Treply_timeout = 260;
 static uint8_t Tusage_timeout = 50;
 
 /* Timer that indicates line silence - and functions */
-static uint16_t SilenceTime;
-#define INCREMENT_AND_LIMIT_UINT16(x) {if (x < 0xFFFF) x++;}
-static uint16_t Timer_Silence(
+static uint32_t Timer_Silence(
     void)
 {
-    return SilenceTime;
+    return timer_milliseconds(TIMER_SILENCE);
 }
 
 static void Timer_Silence_Reset(
     void)
 {
-    SilenceTime = 0;
-}
-
-static void dlmstp_millisecond_timer(
-    void)
-{
-    INCREMENT_AND_LIMIT_UINT16(SilenceTime);
-}
-
-static void dlmstp_reinit(
-    void)
-{
-    /*RS485_Reinit(); */
-    dlmstp_set_mac_address(DEFAULT_MAC_ADDRESS);
-    dlmstp_set_max_info_frames(DEFAULT_MAX_INFO_FRAMES);
-    dlmstp_set_max_master(DEFAULT_MAX_MASTER);
+    timer_reset(TIMER_SILENCE);
 }
 
 void dlmstp_cleanup(
@@ -230,18 +215,6 @@ static void dlmstp_master_fsm_task(
     }
 }
 
-static void dlmstp_millisecond_task(
-    void *pArg)
-{
-    (void) pArg;
-    (void) SetThreadPriority(GetCurrentThread(),
-        THREAD_PRIORITY_TIME_CRITICAL);
-    for (;;) {
-        dlmstp_millisecond_timer();
-        Sleep(1);
-    }
-}
-
 void dlmstp_fill_bacnet_address(
     BACNET_ADDRESS * src,
     uint8_t mstp_address)
@@ -622,7 +595,7 @@ bool dlmstp_init(
         exit(1);
     }
     /* initialize hardware */
-    /* initialize hardware */
+    timer_init();
     if (ifname) {
         RS485_Set_Interface(ifname);
 #if PRINT_ENABLED
@@ -672,11 +645,6 @@ bool dlmstp_init(
     fprintf(stderr, "MS/TP Max_Info_Frames: %u\n",
         (unsigned) MSTP_Port.Nmax_info_frames);
 #endif
-    /* start the threads */
-    hThread = _beginthread(dlmstp_millisecond_task, 4096, &arg_value);
-    if (hThread == 0) {
-        fprintf(stderr, "Failed to start timer task\n");
-    }
     hThread = _beginthread(dlmstp_receive_fsm_task, 4096, &arg_value);
     if (hThread == 0) {
         fprintf(stderr, "Failed to start recive FSM task\n");

bacnet-stack/ports/win32/rs485.c

@@ -33,12 +33,12 @@
  -------------------------------------------
 ####COPYRIGHTEND####*/
 
-/* The module handles sending data out the RS-485 port */
-/* and handles receiving data from the RS-485 port. */
-/* Customize this file for your specific hardware */
+/** @file win32/rs485.c  Provides Windows-specific functions for RS-485 */
+
 /* Suggested USB to RS485 devices:
    B&B Electronics USOPTL4
    SerialGear USB-COMi-SI-M
+   USB-RS485-WE-1800-BT
 */
 
 #include <stddef.h>
@@ -54,6 +54,7 @@
 #define STRICT 1
 #include <windows.h>
 #include "rs485.h"
+#include "fifo.h"
 
 /* details from Serial Communications in Win32 at MSDN */
 
@@ -83,6 +84,11 @@ static DWORD RS485_DTRControl = DTR_CONTROL_DISABLE;
     RTS_CONTROL_ENABLE, RTS_CONTROL_DISABLE,
     RTS_CONTROL_HANDSHAKE, RTS_CONTROL_TOGGLE */
 static DWORD RS485_RTSControl = RTS_CONTROL_DISABLE;
+/* Ring buffer for incoming bytes, in order to speed up the receiving. */
+static FIFO_BUFFER Rx_FIFO;
+/* buffer size needs to be a power of 2 */
+static uint8_t Rx_Buffer[1 << 12];
+
 
 /****************************************************************************
 * DESCRIPTION: Change the characters in a string to uppercase
@@ -99,8 +105,6 @@ static void strupper(
     }
 }
 
-#pragma
-
 /****************************************************************************
 * DESCRIPTION: Initializes the RS485 hardware and variables, and starts in
 *              receive mode.
@@ -211,6 +215,26 @@ static void RS485_Configure_Status(
     }
 }
 
+/****************************************************************************
+* DESCRIPTION: Cleans up any handles that were created at startup.
+* RETURN:      none
+* ALGORITHM:   none
+* NOTES:       none
+*****************************************************************************/
+static void RS485_Cleanup(
+    void)
+{
+    if (!EscapeCommFunction(RS485_Handle, CLRDTR)) {
+        RS485_Print_Error();
+    }
+
+    if (!SetCommTimeouts(RS485_Handle, &RS485_Timeouts)) {
+        RS485_Print_Error();
+    }
+
+    CloseHandle(RS485_Handle);
+}
+
 /****************************************************************************
 * DESCRIPTION: Initializes the RS485 hardware and variables, and starts in
 *              receive mode.
@@ -236,23 +260,11 @@ void RS485_Initialize(
     }
     RS485_Configure_Status();
 
+    atexit(RS485_Cleanup);
+
     return;
 }
 
-void RS485_Cleanup(
-    void)
-{
-    if (!EscapeCommFunction(RS485_Handle, CLRDTR)) {
-        RS485_Print_Error();
-    }
-
-    if (!SetCommTimeouts(RS485_Handle, &RS485_Timeouts)) {
-        RS485_Print_Error();
-    }
-
-    CloseHandle(RS485_Handle);
-}
-
 /****************************************************************************
 * DESCRIPTION: Returns the baud rate that we are currently running at
 * RETURN:      none