-Added g_preserve_channel.

libraries/base/dp/src/vhdl/dp_block_gen.vhd

@@ -60,7 +60,8 @@ ENTITY dp_block_gen IS
     g_error              : NATURAL := 0;
     g_bsn                : NATURAL := 0;
     g_preserve_sync      : BOOLEAN := FALSE;
-    g_preserve_bsn       : BOOLEAN := FALSE
+    g_preserve_bsn       : BOOLEAN := FALSE;
+    g_preserve_channel   : BOOLEAN := FALSE
   );             
   PORT (         
     rst        : IN  STD_LOGIC;
@@ -130,6 +131,7 @@ BEGIN
     nxt_r.src_out.sop   <= '0';
     nxt_r.src_out.eop   <= '0';
     nxt_r.src_out.bsn   <= snk_in.bsn;
+    nxt_r.src_out.channel <= snk_in.channel; 
    
     CASE r.state IS
       WHEN s_sop =>
@@ -154,6 +156,8 @@ BEGIN
             IF g_preserve_bsn=FALSE THEN
               nxt_r.bsn             <= INCR_UVEC(r.bsn, 1);
               nxt_r.src_out.bsn     <= r.bsn;
+            END IF;
+            IF g_preserve_channel=FALSE THEN
               nxt_r.src_out.channel <= TO_DP_CHANNEL(g_channel);
             END IF;
             IF g_nof_data=1 THEN