X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FGoodFET.py;h=3bea6020c04f230652a4b355f7933bdff6e3be34;hp=da652c3a447c797aaa32f91b20b327c2c328dcf5;hb=0a80646c9c1732fa8ec74e33de1ebd3afe5eb9cd;hpb=43d125b5bca16f0941450bee6ba7bd94ab41dc72

diff --git a/client/GoodFET.py b/client/GoodFET.py
index da652c3..3bea602 100755
--- a/client/GoodFET.py
+++ b/client/GoodFET.py
@@ -6,21 +6,80 @@
 # This code is being rewritten and refactored.  You've been warned!
 
 import sys, time, string, cStringIO, struct, glob, serial, os;
+import sqlite3;
 
+fmt = ("B", "<H", None, "<L")
+
+def getClient(name="GoodFET"):
+    import GoodFET, GoodFETCC, GoodFETAVR, GoodFETSPI, GoodFETMSP430;
+    if(name=="GoodFET" or name=="monitor"): return GoodFET.GoodFET();
+    elif name=="cc" or name=="chipcon": return GoodFETCC.GoodFETCC();
+    elif name=="avr": return GoodFETAVR.GoodFETAVR();
+    elif name=="spi": return GoodFETSPI.GoodFETSPI();
+    elif name=="msp430": return GoodFETMSP430.GoodFETMSP430();
+    
+    print "Unsupported target: %s" % name;
+    sys.exit(0);
+
+class SymbolTable:
+    """GoodFET Symbol Table"""
+    db=sqlite3.connect(":memory:");
+    
+    def __init__(self, *args, **kargs):
+        self.db.execute("create table if not exists symbols(adr,name,memory,size,comment);");
+    def get(self,name):
+        self.db.commit();
+        c=self.db.cursor();
+        try:
+            c.execute("select adr,memory from symbols where name=?",(name,));
+            for row in c:
+                #print "Found it.";
+                sys.stdout.flush();
+                return row[0];
+            #print "No dice.";
+        except:# sqlite3.OperationalError:
+            #print "SQL error.";
+            return eval(name);
+        return eval(name);
+    def define(self,adr,name,comment="",memory="vn",size=16):
+        self.db.execute("insert into symbols(adr,name,memory,size,comment)"
+                        "values(?,?,?,?,?);", (
+                adr,name,memory,size,comment));
+        #print "Set %s=%s." % (name,adr);
 
 class GoodFET:
     """GoodFET Client Library"""
+
+    besilent=0;
+    app=0;
+    verb=0;
+    count=0;
+    data="";
+    verbose=False
+    
+    GLITCHAPP=0x71;
+    MONITORAPP=0x00;
+    symbols=SymbolTable();
+    
     def __init__(self, *args, **kargs):
         self.data=[0];
+    def getConsole(self):
+        from GoodFETConsole import GoodFETConsole;
+        return GoodFETConsole(self);
+    def name2adr(self,name):
+        return self.symbols.get(name);
     def timeout(self):
         print "timeout\n";
-    def serInit(self, port=None):
+    def serInit(self, port=None, timeout=2):
         """Open the serial port"""
+        # Make timeout None to wait forever, 0 for non-blocking mode.
         
         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];
+            else:
+                port = os.environ.get("GOODFET");
         if port is None:
             glob_list = glob.glob("/dev/tty.usbserial*");
             if len(glob_list) > 0:
@@ -30,26 +89,46 @@ class GoodFET:
             if len(glob_list) > 0:
                 port = glob_list[0];
         
+        
         self.serialport = serial.Serial(
             port,
             #9600,
             115200,
-            parity = serial.PARITY_NONE
+            parity = serial.PARITY_NONE,
+            timeout=timeout
             )
         
-        #Explicitly set RTS
-        self.serialport.setRTS(1);
-        #Drop DTR, which is !RST, low to begin the app.
-        self.serialport.setDTR(0);
-        self.serialport.flushInput()
-        self.serialport.flushOutput()
+        self.verb=0;
+        attempts=0;
+        connected=0;
+        while connected==0:
+            while self.verb!=0x7F or self.data!="http://goodfet.sf.net/":
+                #print "Resyncing.";
+                self.serialport.flushInput()
+                self.serialport.flushOutput()
+                #Explicitly set RTS and DTR to halt board.
+                self.serialport.setRTS(1);
+                self.serialport.setDTR(1);
+                #Drop DTR, which is !RST, low to begin the app.
+                self.serialport.setDTR(0);
+                self.serialport.flushInput()
+                self.serialport.flushOutput()
+                #time.sleep(60);
+                attempts=attempts+1;
+                self.readcmd(); #Read the first command.
+            #Here we have a connection, but maybe not a good one.
+            connected=1;
+            olds=self.infostring();
+            clocking=self.monitorclocking();
+            for foo in range(1,30):
+                if not self.monitorecho():
+                    if self.verbose: print "Comm error on %i try, resyncing out of %s." % (foo,
+                                                  clocking);
+                    connected=0;
+                    break;
+        if self.verbose: print "Connected after %02i attempts." % attempts;
+        self.mon_connected();
         
-        #Read and handle the initial command.
-        #time.sleep(1);
-        self.readcmd(); #Read the first command.
-        if(self.verb!=0x7F):
-            print "Verb %02x is wrong.  Incorrect firmware?" % self.verb;
-        #print "Connected."
     def getbuffer(self,size=0x1c00):
         writecmd(0,0xC2,[size&0xFF,(size>>16)&0xFF]);
         print "Got %02x%02x buffer size." % (self.data[1],self.data[0]);
@@ -61,49 +140,100 @@ class GoodFET:
         #if data!=None:
         #    count=len(data); #Initial count ignored.
         
-        #print "TX %02x %02x" % (app,verb);
+        #print "TX %02x %02x %04x" % (app,verb,count);
         
         #little endian 16-bit length
         self.serialport.write(chr(count&0xFF));
         self.serialport.write(chr(count>>8));
+
+        if self.verbose:
+            print "Tx: ( 0x%02x, 0x%02x, 0x%04x )" % ( app, verb, count )
         
         #print "count=%02x, len(data)=%04x" % (count,len(data));
         
         if count!=0:
-            for i in range(0,count):
+            if(isinstance(data,list)):
+                for i in range(0,count):
                 #print "Converting %02x at %i" % (data[i],i)
-                data[i]=chr(data[i]);
+                    data[i]=chr(data[i]);
+            #print type(data);
             outstr=''.join(data);
-            #outstr=data;
             self.serialport.write(outstr);
         if not self.besilent:
-            self.readcmd();
-        
-    besilent=0;
-    app=0;
-    verb=0;
-    count=0;
-    data="";
+            return self.readcmd()
+        else:
+            return []
 
     def readcmd(self):
         """Read a reply from the GoodFET."""
-        while 1:
-            #print "Reading...";
-            self.app=ord(self.serialport.read(1));
-            #print "APP=%2x" % self.app;
-            self.verb=ord(self.serialport.read(1));
-            #print "VERB=%02x" % self.verb;
-            self.count=(
-                ord(self.serialport.read(1))
-                +(ord(self.serialport.read(1))<<8)
-                );
+        while 1:#self.serialport.inWaiting(): # Loop while input data is available
+            try:
+                #print "Reading...";
+                self.app=ord(self.serialport.read(1));
+                #print "APP=%2x" % self.app;
+                self.verb=ord(self.serialport.read(1));
+                #print "VERB=%02x" % self.verb;
+                self.count=(
+                    ord(self.serialport.read(1))
+                    +(ord(self.serialport.read(1))<<8)
+                    );
+
+                if self.verbose:
+                    print "Rx: ( 0x%02x, 0x%02x, 0x%04x )" % ( self.app, self.verb, self.count )
             
-            #Debugging string; print, but wait.
-            if self.app==0xFF and self.verb==0xFF:
-                print "DEBUG %s" % self.serialport.read(self.count);
-            else:
-                self.data=self.serialport.read(self.count);
+                #Debugging string; print, but wait.
+                if self.app==0xFF:
+                    if self.verb==0xFF:
+                        print "# DEBUG %s" % self.serialport.read(self.count)
+               	    elif self.verb==0xFE:
+                        print "# DEBUG 0x%x" % struct.unpack(fmt[self.count-1], self.serialport.read(self.count))[0]
+                    sys.stdout.flush();
+                else:
+                    self.data=self.serialport.read(self.count);
+                    return self.data;
+            except TypeError:
+                if self.connected:
+                    print "Error: waiting for serial read timed out (most likely).";
+                    print "This shouldn't happen after syncing.  Exiting for safety.";
+                    sys.exit(-1)
                 return self.data;
+    #Glitching stuff.
+    def glitchApp(self,app):
+        """Glitch into a device by its application."""
+        self.data=[app&0xff];
+        self.writecmd(self.GLITCHAPP,0x80,1,self.data);
+        #return ord(self.data[0]);
+    def glitchVerb(self,app,verb,data):
+        """Glitch during a transaction."""
+        if data==None: data=[];
+        self.data=[app&0xff, verb&0xFF]+data;
+        self.writecmd(self.GLITCHAPP,0x81,len(self.data),self.data);
+        #return ord(self.data[0]);
+    def glitchstart(self):
+        """Glitch into the AVR application."""
+        self.glitchVerb(self.APP,0x20,None);
+    def glitchstarttime(self):
+        """Measure the timer of the START verb."""
+        return self.glitchTime(self.APP,0x20,None);
+    def glitchTime(self,app,verb,data):
+        """Time the execution of a verb."""
+        if data==None: data=[];
+        self.data=[app&0xff, verb&0xFF]+data;
+        self.writecmd(self.GLITCHAPP,0x82,len(self.data),self.data);
+        return ord(self.data[0])+(ord(self.data[1])<<8);
+    def glitchVoltages(self,low=0x0880, high=0x0fff):
+        """Set glitching voltages. (0x0fff is max.)"""
+        self.data=[low&0xff, (low>>8)&0xff,
+                   high&0xff, (high>>8)&0xff];
+        self.writecmd(self.GLITCHAPP,0x90,4,self.data);
+        #return ord(self.data[0]);
+    def glitchRate(self,count=0x0800):
+        """Set glitching count period."""
+        self.data=[count&0xff, (count>>8)&0xff];
+        self.writecmd(self.GLITCHAPP,0x91,2,
+                      self.data);
+        #return ord(self.data[0]);
+    
     
     #Monitor stuff
     def silent(self,s=0):
@@ -111,13 +241,25 @@ class GoodFET:
         self.besilent=s;
         print "besilent is %i" % self.besilent;
         self.writecmd(0,0xB0,1,[s]);
-        
+    connected=0;
+    def mon_connected(self):
+        """Announce to the monitor that the connection is good."""
+        self.connected=1;
+        self.writecmd(0,0xB1,0,[]);
     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 call(self,adr):
+        """Call to an address."""
+        self.writecmd(0,0x30,2,
+                      [adr&0xFF,(adr>>8)&0xFF]);
+    def execute(self,code):
+        """Execute supplied code."""
+        self.writecmd(0,0x31,2,#len(code),
+                      code);
     def peekbyte(self,address):
         """Read a byte of memory from the monitor."""
         self.data=[address&0xff,address>>8];
@@ -189,32 +331,76 @@ class GoodFET:
     def monitortest(self):
         """Self-test several functions through the monitor."""
         print "Performing monitor self-test.";
-        
-        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:
-            print "ERROR, P1OUT not cleared.";
-        self.pokebyte(0x0021,1); #Light LED
-        
+        self.monitorclocking();
+        for f in range(0,3000):
+            a=self.peekword(0x0c00);
+            b=self.peekword(0x0c02);
+            if a!=0x0c04 and a!=0x0c06:
+                print "ERROR Fetched %04x, %04x" % (a,b);
+            self.pokebyte(0x0021,0); #Drop LED
+            if self.peekbyte(0x0021)!=0:
+                print "ERROR, P1OUT not cleared.";
+            self.pokebyte(0x0021,1); #Light LED
+            if not self.monitorecho():
+                print "Echo test failed.";
         print "Self-test complete.";
-    
-    
+        self.monitorclocking();
+    def monitorecho(self):
+        data="The quick brown fox jumped over the lazy dog.";
+        self.writecmd(self.MONITORAPP,0x81,len(data),data);
+        if self.data!=data:
+            if self.verbose: print "Comm error recognized by monitorecho().";
+            return 0;
+        return 1;
+    def monitorclocking(self):
+        DCOCTL=self.peekbyte(0x0056);
+        BCSCTL1=self.peekbyte(0x0057);
+        return "0x%02x, 0x%02x" % (DCOCTL, BCSCTL1);
 
-    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]);
+    # The following functions ought to be implemented in
+    # every client.
+
+    def infostring(self):
+        a=self.peekbyte(0xff0);
+        b=self.peekbyte(0xff1);
+        return "%02x%02x" % (a,b);
+    def lock(self):
+        print "Locking Unsupported.";
+    def erase(self):
+        print "Erasure Unsupported.";
+    def setup(self):
+        return;
+    def start(self):
+        return;
+    def test(self):
+        print "Unimplemented.";
+        return;
+    def status(self):
+        print "Unimplemented.";
+        return;
+    def halt(self):
+        print "Unimplemented.";
+        return;
+    def resume(self):
+        print "Unimplemented.";
+        return;
+    def getpc(self):
+        print "Unimplemented.";
+        return 0xdead;
+    def flash(self,file):
+        """Flash an intel hex file to code memory."""
+        print "Flash not implemented.";
+    def dump(self,file,start=0,stop=0xffff):
+        """Dump an intel hex file from code memory."""
+        print "Dump not implemented.";
+
+    def peek32(self,address, memory="vn"):
+        return (self.peek16(address,memory)+
+                (self.peek16(address+2,memory)<<16));
+    def peek16(self,address, memory="vn"):
+        return (self.peek8(address,memory)+
+                (self.peek8(address+1,memory)<<8));
+    def peek8(self,address, memory="vn"):
+        return self.peekbyte(address); #monitor
+    def loadsymbols(self):
+        return;