X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FGoodFET.py;h=cf01c85cd341d9a13bb677208f4cba5a157c89c8;hp=387eeab5f74b3148fda75da2b45603f2d07ab257;hb=2b654b579b948558edecc63dd7ab3aa4543f050d;hpb=a653ba1562dc444e4be791e22264a89a3c6b4a19

diff --git a/client/GoodFET.py b/client/GoodFET.py
index 387eeab..cf01c85 100755
--- a/client/GoodFET.py
+++ b/client/GoodFET.py
@@ -3,25 +3,37 @@
 # 
 # (C) 2009 Travis Goodspeed <travis at radiantmachines.com>
 #
-# This code is ugly as sin, for bootstrapping the firmware only.
-# Rewrite cleanly as soon as is convenient.
+# This code is being rewritten and refactored.  You've been warned!
 
-import sys, time, string, cStringIO, struct
-sys.path.append("/usr/lib/tinyos")
-import serial
+import sys, time, string, cStringIO, struct, glob, serial, os;
 
 
 class GoodFET:
+    """GoodFET Client Library"""
     def __init__(self, *args, **kargs):
-        print "inited\n";
         self.data=[0];
     def timeout(self):
-        print "timout\n";
-    def serInit(self, port):
+        print "timeout\n";
+    def serInit(self, port=None):
         """Open the serial port"""
+        
+        if port is None and os.environ.get("GOODFET")!=None:
+            glob_list = glob.glob(os.environ.get("GOODFET"));
+            if len(glob_list) > 0:
+                port = glob_list[0];
+        if port is None:
+            glob_list = glob.glob("/dev/tty.usbserial*");
+            if len(glob_list) > 0:
+                port = glob_list[0];
+        if port is None:
+            glob_list = glob.glob("/dev/ttyUSB*");
+            if len(glob_list) > 0:
+                port = glob_list[0];
+        
         self.serialport = serial.Serial(
             port,
-            9600,
+            #9600,
+            115200,
             parity = serial.PARITY_NONE
             )
         #Drop DTR, which is !RST, low to begin the app.
@@ -30,13 +42,12 @@ class GoodFET:
         self.serialport.flushOutput()
         
         #Read and handle the initial command.
-        time.sleep(1);
+        #time.sleep(1);
         self.readcmd(); #Read the first command.
         if(self.verb!=0x7F):
-            print "Verb is wrong.  Incorrect firmware?";
-        
-        
-    def writecmd(self, app, verb, count, data):
+            print "Verb %02x is wrong.  Incorrect firmware?" % self.verb;
+        #print "Connected."
+    def writecmd(self, app, verb, count=0, data=[], blocks=1):
         """Write a command and some data to the GoodFET."""
         self.serialport.write(chr(app));
         self.serialport.write(chr(verb));
@@ -45,17 +56,24 @@ class GoodFET:
         if count!=0:
             for d in data:
                 self.serialport.write(chr(d));
-        self.readcmd();  #Uncomment this later, to ensure a response.
-    def readcmd(self):
+        
+        self.readcmd(blocks);  #Uncomment this later, to ensure a response.
+    def readcmd(self,blocks=1):
         """Read a reply from the GoodFET."""
         self.app=ord(self.serialport.read(1));
         self.verb=ord(self.serialport.read(1));
         self.count=ord(self.serialport.read(1));
-        if self.count>0:
-            self.data=self.serialport.read(self.count);
+        self.data=self.serialport.read(self.count*blocks);
         #print "READ %02x %02x %02x " % (self.app, self.verb, self.count);
+        return self.data;
         
     #Monitor stuff
+    def out(self,byte):
+        """Write a byte to P5OUT."""
+        self.writecmd(0,0xA1,1,[byte]);
+    def dir(self,byte):
+        """Write a byte to P5DIR."""
+        self.writecmd(0,0xA0,1,[byte]);
     def peekbyte(self,address):
         """Read a byte of memory from the monitor."""
         self.data=[address&0xff,address>>8];
@@ -70,12 +88,65 @@ class GoodFET:
         self.data=[address&0xff,address>>8,value];
         self.writecmd(0,0x03,3,self.data);
         return ord(self.data[0]);
+    def dumpmem(self,begin,end):
+        i=begin;
+        while i<end:
+            print "%04x %04x" % (i, self.peekword(i));
+            i+=2;
+    def monitor_ram_pattern(self):
+        """Overwrite all of RAM with 0xBEEF."""
+        self.writecmd(0,0x90,0,self.data);
+        return;
+    def monitor_ram_depth(self):
+        """Determine how many bytes of RAM are unused by looking for 0xBEEF.."""
+        self.writecmd(0,0x91,0,self.data);
+        return ord(self.data[0])+(ord(self.data[1])<<8);
     
+    #Baud rates.
+    baudrates=[115200, 
+               9600,
+               19200,
+               38400,
+               57600,
+               115200];
+    def setBaud(self,baud):
+        """Change the baud rate.  TODO fix this."""
+        rates=self.baudrates;
+        self.data=[baud];
+        print "Changing FET baud."
+        self.serialport.write(chr(0x00));
+        self.serialport.write(chr(0x80));
+        self.serialport.write(chr(1));
+        self.serialport.write(chr(baud));
+        
+        print "Changed host baud."
+        self.serialport.setBaudrate(rates[baud]);
+        time.sleep(1);
+        self.serialport.flushInput()
+        self.serialport.flushOutput()
+        
+        print "Baud is now %i." % rates[baud];
+        return;
+    def readbyte(self):
+        return ord(self.serialport.read(1));
+    def findbaud(self):
+        for r in self.baudrates:
+            print "\nTrying %i" % r;
+            self.serialport.setBaudrate(r);
+            #time.sleep(1);
+            self.serialport.flushInput()
+            self.serialport.flushOutput()
+            
+            for i in range(1,10):
+                self.readbyte();
+            
+            print "Read %02x %02x %02x %02x" % (
+                self.readbyte(),self.readbyte(),self.readbyte(),self.readbyte());
     def monitortest(self):
         """Self-test several functions through the monitor."""
         print "Performing monitor self-test.";
         
-        if self.peekword(0x0c00)!=0x0c04:
+        if self.peekword(0x0c00)!=0x0c04 and self.peekword(0x0c00)!=0x0c06:
             print "ERROR Fetched wrong value from 0x0c04.";
         self.pokebyte(0x0021,0); #Drop LED
         if self.peekbyte(0x0021)!=0:
@@ -84,81 +155,158 @@ class GoodFET:
         
         print "Self-test complete.";
     
-    def spisetup(self):
-        """Moved the FET into the SPI application."""
-        print "Initializing SPI.";
-        self.writecmd(1,0x10,0,self.data); #SPI/SETUP
-        #self.readcmd();
-    def spitrans8(self,byte):
-        """Read and write 8 bits by SPI."""
-        self.data=[byte];
-        self.writecmd(1,0,1,self.data);    #SPI exchange
-        #self.readcmd();
-        
-        if self.app!=1 or self.verb!=0:
-            print "Error in SPI transaction; app=%02x, verb=%02x" % (self.app, self.verb);
-        return ord(self.data[0]);
-    def MSP430setup(self):
-        """Move the FET into the MSP430 JTAG application."""
-        print "Initializing MSP430.";
-        self.writecmd(0x11,0x10,0,self.data);
-    def MSP430peek(self,adr):
-        """Read the contents of memory at an address."""
-        self.data=[adr&0xff, (adr&0xff00)>>8];
-        self.writecmd(0x11,0x02,2,self.data);
-        return ord(self.data[0])+(ord(self.data[1])<<8);
-    def MSP430poke(self,adr,val):
-        """Read the contents of memory at an address."""
-        self.data=[adr&0xff, (adr&0xff00)>>8, val&0xff, (val&0xff00)>>8];
-        self.writecmd(0x11,0x03,4,self.data);
-        return;# ord(self.data[0])+(ord(self.data[1])<<8);
     
-    def MSP430start(self):
-        """Start debugging."""
-        self.writecmd(0x11,0x20,0,self.data);
-    def MSP430haltcpu(self):
+
+    def I2Csetup(self):
+        """Move the FET into the I2C application."""
+        self.writecmd(0x02,0x10,0,self.data); #SPI/SETUP
+    def I2Cstart(self):
+        """Start an I2C transaction."""
+        self.writecmd(0x02,0x20,0,self.data); #SPI/SETUP
+    def I2Cstop(self):
+        """Stop an I2C transaction."""
+        self.writecmd(0x02,0x21,0,self.data); #SPI/SETUP
+    def I2Cread(self,len=1):
+        """Read len bytes by I2C."""
+        self.writecmd(0x02,0x00,1,[len]); #SPI/SETUP
+        return self.data;
+    def I2Cwrite(self,bytes):
+        """Write bytes by I2C."""
+        self.writecmd(0x02,0x01,len(bytes),bytes); #SPI/SETUP
+        return ord(self.data[0]);
+class GoodFETCC(GoodFET):
+    """A GoodFET variant for use with Chipcon 8051 Zigbe SoC."""
+    def CChaltcpu(self):
         """Halt the CPU."""
-        self.writecmd(0x11,0xA0,0,self.data);
-    def MSP430releasecpu(self):
+        self.writecmd(0x30,0x86,0,self.data);
+    def CCreleasecpu(self):
         """Resume the CPU."""
-        self.writecmd(0x11,0xA1,0,self.data);
+        self.writecmd(0x30,0x87,0,self.data);
+    def CCtest(self):
+        self.CCreleasecpu();
+        self.CChaltcpu();
+        #print "Status: %s" % self.CCstatusstr();
+        
+        #Grab ident three times, should be equal.
+        ident1=self.CCident();
+        ident2=self.CCident();
+        ident3=self.CCident();
+        if(ident1!=ident2 or ident2!=ident3):
+            print "Error, repeated ident attempts unequal."
+            print "%04x, %04x, %04x" % (ident1, ident2, ident3);
+        
+        #Single step, printing PC.
+        print "Tracing execution at startup."
+        for i in range(1,15):
+            pc=self.CCgetPC();
+            byte=self.CCpeekcodebyte(i);
+            #print "PC=%04x, %02x" % (pc, byte);
+            self.CCstep_instr();
+        
+        print "Verifying that debugging a NOP doesn't affect the PC."
+        for i in range(1,15):
+            pc=self.CCgetPC();
+            self.CCdebuginstr([0x00]);
+            if(pc!=self.CCgetPC()):
+                print "ERROR: PC changed during CCdebuginstr([NOP])!";
+        
+        
+        #print "Status: %s." % self.CCstatusstr();
+        #Exit debugger
+        self.CCstop();
+        print "Done.";
 
-    def MSP430shiftir8(self,ins):
-        """Shift the 8-bit Instruction Register."""
-        data=[ins];
-        self.writecmd(0x11,0x80,1,data);
+    def CCsetup(self):
+        """Move the FET into the CC2430/CC2530 application."""
+        #print "Initializing Chipcon.";
+        self.writecmd(0x30,0x10,0,self.data);
+    def CCrd_config(self):
+        """Read the config register of a Chipcon."""
+        self.writecmd(0x30,0x82,0,self.data);
         return ord(self.data[0]);
-    def MSP430shiftdr16(self,dat):
-        """Shift the 16-bit Data Register."""
-        data=[dat&0xFF,(dat&0xFF00)>>8];
-        self.writecmd(0x11,0x81,2,data);
-        return ord(self.data[0])#+(ord(self.data[1])<<8);
-    def MSP430setinstrfetch(self):
-        """Set the instruction fetch mode."""
-        self.writecmd(0x11,0xC1,0,self.data);
-        return self.data[0];
-    def MSP430test(self):
-        """Test MSP430 JTAG.  Requires that a chip be attached."""
-        self.MSP430setup();
-        self.MSP430start();
-        self.MSP430haltcpu();
-        
-        ident=self.MSP430peek(0x0ff0);
-        print "Target identifies as %04x." % ident;
-        if ident==0xffff:
-            print "Is anything connected?";
-        print "Testing RAM.";
-        temp=self.MSP430peek(0x0200);
-        self.MSP430poke(0x0200,0xdead);
-        if(self.MSP430peek(0x0200)!=0xdead):
-            print "Poke of 0x0200 did not set to 0xDEAD properly.";
-            exit;
-        self.MSP430poke(0x0200,temp); #restore old value.
-        self.MSP430releasecpu();
+    def CCwr_config(self,config):
+        """Write the config register of a Chipcon."""
+        self.writecmd(0x30,0x81,1,[config&0xFF]);
+    
+    CCversions={0x0100:"CC1110",
+                0x8500:"CC2430",
+                0x8900:"CC2431",
+                0x8100:"CC2510",
+                0x9100:"CC2511",
+                0xFF00:"CCmissing"};
+    def CCidentstr(self):
+        ident=self.CCident();
+        chip=self.CCversions.get(ident&0xFF00);
+        return "%s/r%02x" % (chip, ident&0xFF); 
+    def CCident(self):
+        """Get a chipcon's ID."""
+        self.writecmd(0x30,0x8B,0,None);
+        chip=ord(self.data[0]);
+        rev=ord(self.data[1]);
+        return (chip<<8)+rev;
+    def CCgetPC(self):
+        """Get a chipcon's PC."""
+        self.writecmd(0x30,0x83,0,None);
+        hi=ord(self.data[0]);
+        lo=ord(self.data[1]);
+        return (hi<<8)+lo;
+    def CCdebuginstr(self,instr):
+        self.writecmd(0x30,0x88,len(instr),instr);
+        return ord(self.data[0]);
+    def CCpeekcodebyte(self,adr):
+        """Read the contents of code memory at an address."""
+        self.data=[adr&0xff, (adr&0xff00)>>8];
+        self.writecmd(0x30,0x90,2,self.data);
+        return ord(self.data[0]);
+    def CCpeekdatabyte(self,adr):
+        """Read the contents of data memory at an address."""
+        self.data=[adr&0xff, (adr&0xff00)>>8];
+        self.writecmd(0x30,0x91, 2, self.data);
+        return ord(self.data[0]);
+    def CCpokedatabyte(self,adr,val):
+        """Write a byte to data memory."""
+        self.data=[adr&0xff, (adr&0xff00)>>8, val];
+        self.writecmd(0x30, 0x92, 3, self.data);
+        return ord(self.data[0]);
+    def CCchiperase(self):
+        """Erase all of the target's memory."""
+        self.writecmd(0x30,0x80,0,None);
+    def CCstatus(self):
+        """Check the status."""
+        self.writecmd(0x30,0x84,0,None);
+        return ord(self.data[0])
+    CCstatusbits={0x80 : "erased",
+                  0x40 : "pcon_idle",
+                  0x20 : "halted",
+                  0x10 : "pm0",
+                  0x08 : "halted",
+                  0x04 : "locked",
+                  0x02 : "oscstable",
+                  0x01 : "overflow"};
+    def CCstatusstr(self):
+        """Check the status as a string."""
+        status=self.CCstatus();
+        str="";
+        i=1;
+        while i<0x100:
+            if(status&i):
+                str="%s %s" %(self.CCstatusbits[i],str);
+            i*=2;
+        return str;
+    def CCstart(self):
+        """Start debugging."""
+        self.writecmd(0x30,0x20,0,self.data);
+        ident=self.CCidentstr();
+        print "Target identifies as %s." % ident;
+        #print "Status: %s." % self.CCstatusstr();
+        self.CCreleasecpu();
+        self.CChaltcpu();
+        #print "Status: %s." % self.CCstatusstr();
         
-    def MSP430dumpbsl(self):
-        i=0xC00;
-        while i<0x1000:
-            print "%04x %04x" % (i, self.MSP430peek(i));
-            i+=2;
+    def CCstop(self):
+        """Stop debugging."""
+        self.writecmd(0x30,0x21,0,self.data);
+    def CCstep_instr(self):
+        """Step one instruction."""
+        self.writecmd(0x30,0x89,0,self.data);