Fixing Makefile build for bip6 with win32 MinGW and in github workflows. (#1125)

2025-10-30 12:00:01 -05:00
parent 895d9b3e21
commit 17259b37f3
10 changed files with 216 additions and 104 deletions
@@ -0,0 +1,129 @@
+/**
+ * @file
+ * @brief Provides port specific functions for ARCNET
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date October 2025
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#include <stdint.h>
+#include "bacnet/bacdef.h"
+#include "bacnet/npdu.h"
+#include "bacnet/datalink/arcnet.h"
+
+/* my local device data - MAC address */
+uint8_t ARCNET_MAC_Address = 0;
+/* ARCNET file handle */
+static int ARCNET_Sock_FD = -1;
+/* Broadcast address */
+#define ARCNET_BROADCAST 0
+
+/*
+Hints:
+
+When using a PCI20-485D ARCNET card from Contemporary Controls,
+you might need to know about the following settings:
+
+Assuming a 20MHz clock on the COM20020 chip:
+
+clockp Clock Prescaler DataRate
+------ --------------- --------
+0           8          2.5 Mbps
+1           16         1.25 Mbps
+2           32         625 Kbps
+3           64         312.5 Kbps
+4           128        156.25Kbps
+
+1. Install the arcnet driver and arcnet raw mode driver
+2. The hardware address (MAC address) is set using the dipswitch
+   on the back of the card.  0 is broadcast, so don't use 0.
+3. The backplane mode on the PCI20-485D card is done in hardware,
+   so the driver does not need to do backplane mode.  If you
+   use another type of PCI20 card, you could pass in backplane=1 or
+   backplane=0 as an option to the modprobe of com20020_pci.
+*/
+
+bool arcnet_valid(void)
+{
+    return (ARCNET_Sock_FD >= 0);
+}
+
+void arcnet_cleanup(void)
+{
+    if (arcnet_valid()) {
+        /* close the interface */
+    }
+    ARCNET_Sock_FD = -1;
+
+    return;
+}
+
+bool arcnet_init(char *interface_name)
+{
+    (void)interface_name;
+    return arcnet_valid();
+}
+
+/* function to send a PDU out the socket */
+/* returns number of bytes sent on success, negative on failure */
+int arcnet_send_pdu(
+    BACNET_ADDRESS *dest, /* destination address */
+    BACNET_NPDU_DATA *npdu_data, /* network information */
+    uint8_t *pdu, /* any data to be sent - may be null */
+    unsigned pdu_len)
+{
+    int bytes = 0;
+
+    (void)dest;
+    (void)npdu_data;
+    (void)pdu;
+    (void)pdu_len;
+
+    return bytes;
+}
+
+/* receives an framed packet */
+/* returns the number of octets in the PDU, or zero on failure */
+uint16_t arcnet_receive(
+    BACNET_ADDRESS *src, /* source address */
+    uint8_t *pdu, /* PDU data */
+    uint16_t pdu_size, /* amount of space available in the PDU  */
+    unsigned timeout)
+{
+    (void)src;
+    (void)pdu;
+    (void)timeout;
+    (void)pdu_size;
+    return 0;
+}
+
+void arcnet_get_my_address(BACNET_ADDRESS *my_address)
+{
+    int i = 0;
+
+    my_address->mac_len = 1;
+    my_address->mac[0] = ARCNET_MAC_Address;
+    my_address->net = 0; /* DNET=0 is local only, no routing */
+    my_address->len = 0;
+    for (i = 0; i < MAX_MAC_LEN; i++) {
+        my_address->adr[i] = 0;
+    }
+
+    return;
+}
+
+void arcnet_get_broadcast_address(BACNET_ADDRESS *dest)
+{ /* destination address */
+    int i = 0; /* counter */
+
+    if (dest) {
+        dest->mac[0] = ARCNET_BROADCAST;
+        dest->mac_len = 1;
+        dest->net = BACNET_BROADCAST_NETWORK;
+        dest->len = 0; /* always zero when DNET is broadcast */
+        for (i = 0; i < MAX_MAC_LEN; i++) {
+            dest->adr[i] = 0;
+        }
+    }
+
+    return;
+}