Decrease eth irq priority.

[bertos.git] / bertos / net / ax25.c

diff --git a/bertos/net/ax25.c b/bertos/net/ax25.c
index 68a6ae56d777066356d1ce66bff0473d1a99f862..3bd3e75ce2376c3d7220ee056daae962e3e21917 100644 (file)
--- a/bertos/net/ax25.c
+++ b/bertos/net/ax25.c
@@ -34,7 +34,6 @@
  * For now, only UI frames without any Layer 3 protocol are handled.
  * This however is enough to send/receive APRS packets.
  *
- * \version $Id$
  * \author Francesco Sacchi <batt@develer.com>
  *
  */
@@ -51,10 +50,22 @@
 #include <string.h> //memset, memcmp
 #include <ctype.h>  //isalnum, toupper
 
+#if CONFIG_AX25_RPT_LST
+       #define AX25_SET_REPEATED(msg, idx, val) \
+               do \
+               { \
+                       if (val) \
+                               (msg)->rpt_flags |= BV(idx) ; \
+                       else \
+                               (msg)->rpt_flags &= ~BV(idx) ; \
+               } while(0) 
+#endif
+
 #define DECODE_CALL(buf, addr) \
        for (unsigned i = 0; i < sizeof((addr)); i++) \
        { \
-               (addr)[i] = *(buf)++ >> 1; \
+               char c = (*(buf)++ >> 1); \
+               (addr)[i] = (c == ' ') ? '\x0' : c; \
        }
 
 static void ax25_decode(AX25Ctx *ctx)
@@ -76,7 +87,12 @@ static void ax25_decode(AX25Ctx *ctx)
                {
                        DECODE_CALL(buf, msg.rpt_lst[msg.rpt_cnt].call);
                        msg.rpt_lst[msg.rpt_cnt].ssid = (*buf >> 1) & 0x0F;
-                       LOG_INFO("RPT%d[%.6s-%d]\n", msg.rpt_cnt, msg.rpt_lst[msg.rpt_cnt].call, msg.rpt_lst[msg.rpt_cnt].ssid);
+                       AX25_SET_REPEATED(&msg, msg.rpt_cnt, (*buf & 0x80));
+
+                       LOG_INFO("RPT%d[%.6s-%d]%c\n", msg.rpt_cnt, 
+                               msg.rpt_lst[msg.rpt_cnt].call, 
+                               msg.rpt_lst[msg.rpt_cnt].ssid,
+                               (AX25_REPEATED(&msg, msg.rpt_cnt) ? '*' : ' '));
                }
        #else
                while (!(*buf++ & 0x01))
@@ -210,8 +226,10 @@ static void ax25_sendCall(AX25Ctx *ctx, const AX25Call *addr, bool last)
                for (unsigned i = 0; i < sizeof(addr->call) - len; i++)
                        ax25_putchar(ctx, ' ' << 1);
 
+       /* The bit7 "has-been-repeated" flag is not implemented here */
+       /* Bits6:5 should be set to 1 for all SSIDs (0x60) */
        /* The bit0 of last call SSID should be set to 1 */
-       uint8_t ssid = addr->ssid << 1 | (last ? 0x01 : 0);
+       uint8_t ssid = 0x60 | (addr->ssid << 1) | (last ? 0x01 : 0);
        ax25_putchar(ctx, ssid);
 }
 
@@ -258,6 +276,39 @@ void ax25_sendVia(AX25Ctx *ctx, const AX25Call *path, size_t path_len, const voi
        kfile_putc(HDLC_FLAG, ctx->ch);
 }
 
+static void print_call(KFile *ch, const AX25Call *call)
+{
+       kfile_printf(ch, "%.6s", call->call);
+       if (call->ssid)
+               kfile_printf(ch, "-%d", call->ssid);
+}
+
+/**
+ * Print a AX25 message in TNC-2 packet monitor format.
+ * \param ch a kfile channel where the message will be printed.
+ * \param msg the message to be printed.
+ */
+void ax25_print(KFile *ch, const AX25Msg *msg)
+{
+       print_call(ch, &msg->src);
+       kfile_putc('>', ch);
+       print_call(ch, &msg->dst);
+
+       #if CONFIG_AX25_RPT_LST
+       for (int i = 0; i < msg->rpt_cnt; i++)
+       {
+               kfile_putc(',', ch);
+               print_call(ch, &msg->rpt_lst[i]);
+               /* Print a '*' if packet has already been transmitted 
+                * by this repeater */
+               if (AX25_REPEATED(msg, i))
+                       kfile_putc('*', ch);
+       }
+       #endif
+
+       kfile_printf(ch, ":%.*s\n", msg->len, msg->info);
+}
+
 
 /**
  * Init the AX25 protocol decoder.