Moved header transmission to txhead, about to switch to 16-bit length field.

[goodfet] / firmware / lib / command.c

diff --git a/firmware/lib/command.c b/firmware/lib/command.c
index f585e4c..8d9eac1 100644 (file)
--- a/firmware/lib/command.c
+++ b/firmware/lib/command.c
@@ -1,10 +1,14 @@
+/*! \file command.c
+  \author Travis Goodspeed
+  \brief These functions manage command interpretation.
+*/
+
 #include "command.h"
 #include "platform.h"
 #include <string.h>
 
-//! Different command handling functions.
-
 unsigned char cmddata[256];
+unsigned char silent=0;
 
 //! Transmit a string.
 void txstring(unsigned char app,
@@ -18,19 +22,41 @@ void txstring(unsigned char app,
     serial_tx(*(str++));
 }
 
-//! Transmit data.
-void txdata(unsigned char app,
+/*! \brief Transmit a debug string.
+  
+  Transmits a debugging string that is to be printed
+  out of line by the client.  This is just for record-keeping;
+  it is not considered a proper reply to a query.
+ */
+void debugstr(const char *str){
+  txstring(0xFF,0xFF,str);
+}
+
+//! Transmit a header.
+void txhead(unsigned char app,
            unsigned char verb,
-           unsigned char len){
-  unsigned int i=0;
+           unsigned int len){
   serial_tx(app);
   serial_tx(verb);
   serial_tx(len);
+}
+
+//! Transmit data.
+void txdata(unsigned char app,
+           unsigned char verb,
+           unsigned int len){
+  unsigned int i=0;
+  if(silent)
+    return;
+  txhead(app,verb,len);
   for(i=0;i<len;i++){
     serial_tx(cmddata[i]);
   }
 }
 
+//Be very careful changing delay().
+//It was chosen poorly by trial and error.
+
 //! Delay for a count.
 void delay(unsigned int count){
   volatile unsigned int i=count;