From 01579c8ee0a90c0e9d34377f344c7a0885104fe7 Mon Sep 17 00:00:00 2001
From: travisutk <travisutk@12e2690d-a6be-4b82-a7b7-67c4a43b65c8>
Date: Thu, 23 Dec 2010 00:28:38 +0000
Subject: [PATCH] Support for fixed length packets, shell code now installs to
 client/.

git-svn-id: https://svn.code.sf.net/p/goodfet/code/trunk@792 12e2690d-a6be-4b82-a7b7-67c4a43b65c8
---
 shellcode/chipcon/cc1110/Makefile   |  3 +++
 shellcode/chipcon/cc1110/crystal.c  | 18 +++++++++++++-----
 shellcode/chipcon/cc1110/rxpacket.c | 26 +++++++++++++++++++-------
 3 files changed, 35 insertions(+), 12 deletions(-)

diff --git a/shellcode/chipcon/cc1110/Makefile b/shellcode/chipcon/cc1110/Makefile
index 12df0f3..1b17200 100644
--- a/shellcode/chipcon/cc1110/Makefile
+++ b/shellcode/chipcon/cc1110/Makefile
@@ -16,3 +16,6 @@ all: $(objs)
 	$(CC) $<
 clean:
 	rm -f *.ihx *.rel *.hex *.sym *.asm *.lst *.lnk *.map *.mem *.rst *.adb
+install: all
+	cp $(objs) ../../../client/shellcode/chipcon/cc1110/
+	#Shellcode installed.
diff --git a/shellcode/chipcon/cc1110/crystal.c b/shellcode/chipcon/cc1110/crystal.c
index 226cbfd..f32e755 100644
--- a/shellcode/chipcon/cc1110/crystal.c
+++ b/shellcode/chipcon/cc1110/crystal.c
@@ -3,11 +3,19 @@
 
 //! Start the crystal oscillator at 26MHz.
 void main(){
-  SLEEP &= ~SLEEP_OSC_PD; // Turn both high speed oscillators on
-  while( !(SLEEP & SLEEP_XOSC_S) ); // Wait until xtal oscillator is stable
-  CLKCON = (CLKCON & ~(CLKCON_CLKSPD | CLKCON_OSC)) | CLKSPD_DIV_1; // Select xtal osc, 26 MHz
-  while (CLKCON & CLKCON_OSC); // Wait for change to take effect
-  SLEEP |= SLEEP_OSC_PD; // Turn off the other high speed oscillator (the RC osc)
+  // Turn both high speed oscillators on
+  SLEEP &= ~SLEEP_OSC_PD;
+  // Wait until xtal oscillator is stable
+  while( !(SLEEP & SLEEP_XOSC_S) ); 
+
+  // Select xtal osc, 26 MHz
+  CLKCON = 
+    (CLKCON & ~(CLKCON_CLKSPD | CLKCON_OSC))
+    | CLKSPD_DIV_1; 
+  // Wait for change to take effect
+  while (CLKCON & CLKCON_OSC); 
+  // Turn off the RC osc.
+  SLEEP |= SLEEP_OSC_PD; 
   
   HALT;
 }
diff --git a/shellcode/chipcon/cc1110/rxpacket.c b/shellcode/chipcon/cc1110/rxpacket.c
index 0535f0b..13ec690 100644
--- a/shellcode/chipcon/cc1110/rxpacket.c
+++ b/shellcode/chipcon/cc1110/rxpacket.c
@@ -24,13 +24,25 @@ void main(){
     //Begin to receive.
     RFST=RFST_SRX;
     while(MARCSTATE!=MARC_STATE_RX);
-  
-    while(i<len+3){ //len+3 if status is appended.
-      while(!RFTXRXIF); //Wait for byte to be ready.
-      RFTXRXIF=0;      //Clear the flag.
-      
-      packet[i++]=RFD; //Grab the next byte.
-      len=packet[0];   //First byte of the packet is the length.
+    
+    if(PKTCTRL0&1){
+      //auto length
+      while(i<len+3){ //len+3 if status is appended.
+	while(!RFTXRXIF); //Wait for byte to be ready.
+	RFTXRXIF=0;      //Clear the flag.
+	
+	packet[i++]=RFD; //Grab the next byte.
+	len=packet[0];   //First byte of the packet is the length.
+      }
+    }else{
+      //Fixed length
+      packet[i++]=PKTLEN;
+      while(i<PKTLEN){
+	while(!RFTXRXIF); //Wait for byte to be ready.
+	RFTXRXIF=0;      //Clear the flag.
+	
+	packet[i++]=RFD; //Grab the next byte.
+      }
     }
     RFST = RFST_SIDLE; //End receive.
     
-- 
2.20.1