+/*! \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 cmddata[CMDDATALEN];
+unsigned char silent=0;
//! Transmit a string.
void txstring(unsigned char app,
unsigned char verb,
const char *str){
- unsigned char len=strlen(str);
- serial_tx(app);
- serial_tx(verb);
- serial_tx(len);
+ unsigned long len=strlen(str);
+ txhead(app,verb,len);
while(len--)
serial_tx(*(str++));
}
+/*! \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);
+}
+
+//! brief Debug a hex word string.
+void debughex(u16 v) {
+ unsigned char a[7];
+ a[0]='0'; a[1]='x';
+
+ a[2]=0xf&(v>>12);
+ a[2]+=(a[2]>9)?('a'-10):'0';
+
+ a[3]=0xf&(v>>8);
+ a[3]+=(a[3]>9)?('a'-10):'0';
+
+ a[4]=0xf&(v>>4);
+ a[4]+=(a[4]>9)?('a'-10):'0';
+
+ a[5]=0xf&(v>>0);
+ a[5]+=(a[5]>9)?('a'-10):'0';
+
+ a[6]=0;
+
+ txstring(0xFF,0xFF,a);
+}
+
+/*! \brief Transmit debug bytes.
+
+ Transmits bytes for debugging.
+*/
+void debugbytes(const char *bytes, unsigned int len){
+ u16 i;
+ txhead(0xFF,0xFE,len);
+ for(i=0;i<len;i++)
+ serial_tx(bytes[i]);
+}
+
+
+//! Transmit a header.
+void txhead(unsigned char app,
+ unsigned char verb,
+ unsigned long len){
+ serial_tx(app);
+ serial_tx(verb);
+ //serial_tx(len); //old protocol
+ txword(len);
+}
+
//! Transmit data.
void txdata(unsigned char app,
unsigned char verb,
- unsigned char len){
+ unsigned long len){
unsigned int i=0;
- serial_tx(app);
- serial_tx(verb);
- serial_tx(len);
+ if(silent)
+ return;
+ txhead(app,verb,len);
for(i=0;i<len;i++){
serial_tx(cmddata[i]);
}
}
+//! Receive a long.
+unsigned long rxlong(){
+ unsigned long toret=0;
+ toret=serial_rx();
+ toret|=(((long)serial_rx())<<8);
+ toret|=(((long)serial_rx())<<16);
+ toret|=(((long)serial_rx())<<24);
+ return toret;
+}
+//! Receive a word.
+unsigned int rxword(){
+ unsigned long toret=0;
+ toret=serial_rx();
+ toret|=(((long)serial_rx())<<8);
+ return toret;
+}
+//! Transmit a long.
+void txlong(unsigned long l){
+ serial_tx(l&0xFF);
+ l>>=8;
+ serial_tx(l&0xFF);
+ l>>=8;
+ serial_tx(l&0xFF);
+ l>>=8;
+ serial_tx(l&0xFF);
+ l>>=8;
+}
+//! Transmit a word.
+void txword(unsigned int l){
+ serial_tx(l&0xFF);
+ l>>=8;
+ serial_tx(l&0xFF);
+ l>>=8;
+}
+
+//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;