X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FGoodFET.py;h=af24201cbcd74b8db97c041bdc157678e7487484;hp=952ae98f10332a2e3e1f00f582c44c1ea011ab1d;hb=1706a7f4cfa73ed716b56f5b0322bfb67b560ade;hpb=92560226caf1a463eb144324978b0a390327e09e

diff --git a/client/GoodFET.py b/client/GoodFET.py
index 952ae98..af24201 100755
--- a/client/GoodFET.py
+++ b/client/GoodFET.py
@@ -3,21 +3,33 @@
 # 
 # (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):
         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,
@@ -33,9 +45,12 @@ class GoodFET:
         #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 getbuffer(self,size=0x1c00):
+        writecmd(0,0xC2,[size&0xFF,(size>>16)&0xFF]);
+        print "Got %02x%02x buffer size." % (self.data[1],self.data[0]);
+    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));
@@ -44,17 +59,46 @@ 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):
-        """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);
-        #print "READ %02x %02x %02x " % (self.app, self.verb, self.count);
         
+        if not self.besilent:
+            #print "Reading reply to %02x/%02x." % (app,verb);
+            self.readcmd(blocks);
+            #print "Read reply."
+    
+    besilent=0;
+    app=0;
+    verb=0;
+    count=0;
+    data="";
+
+    def readcmd(self,blocks=1):
+        """Read a reply from the GoodFET."""
+        while 1:
+            self.app=ord(self.serialport.read(1));
+            self.verb=ord(self.serialport.read(1));
+            self.count=ord(self.serialport.read(1));
+            self.data=self.serialport.read(self.count*blocks);
+            #print "READ %02x %02x %02x " % (self.app, self.verb, self.count);
+            
+            #Debugging string; print, but wait.
+            if self.app==0xFF and self.verb==0xFF:
+                print "DEBUG %s" % self.data;
+            else:
+                return self.data;
+    
     #Monitor stuff
+    def silent(self,s=0):
+        """Transmissions halted when 1."""
+        self.besilent=s;
+        print "besilent is %i" % self.besilent;
+        self.writecmd(0,0xB0,1,[s]);
+        
+    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];
@@ -69,8 +113,30 @@ 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):
-        rates=[9600, 9600, 19200, 38400];
+        """Change the baud rate.  TODO fix this."""
+        rates=self.baudrates;
         self.data=[baud];
         print "Changing FET baud."
         self.serialport.write(chr(0x00));
@@ -86,11 +152,26 @@ class GoodFET:
         
         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:
@@ -99,81 +180,70 @@ class GoodFET:
         
         print "Self-test complete.";
     
-    def SPIsetup(self):
-        """Moved the FET into the SPI application."""
-        self.writecmd(0x01,0x10,0,self.data); #SPI/SETUP
-        #self.readcmd();
-    def SPItrans8(self,byte):
-        """Read and write 8 bits by SPI."""
-        data=self.SPItrans([byte]);
-        return ord(data[0]);
     
-    def SPItrans(self,data):
-        """Exchange data by SPI."""
-        self.data=data;
-        self.writecmd(0x01,0x00,len(data),data);
+
+    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;
-    
-    JEDECmanufacturers={0xFF: "MISSING",
-                        0xEF: "Winbond"};
-    JEDECdevices={0xEF3014: "W25X80L",
-                  0xEF3013: "W25X40L",
-                  0xEF3012: "W25X20L",
-                  0xEF3011: "W25X10L"};
-    def SPIjedec(self):
-        """Grab an SPI Flash ROM's JEDEC bytes."""
-        data=[0x9f, 0, 0, 0];
-        data=self.SPItrans(data);
-        #print "Manufacturer: %02x\nType: %02x\nCapacity: %02x" % (ord(data[1]),ord(data[2]),ord(data[3]));
-        self.JEDECmanufacturer=ord(data[1]);
-        self.JEDECtype=ord(data[2]);
-        self.JEDECcapacity=ord(data[3]);
-        self.JEDECdevice=(ord(data[1])<<16)+(ord(data[2])<<8)+ord(data[3]);
-        return data;
-    def SPIpeek(self,adr):
-        """Grab a byte from an SPI Flash ROM."""
-        data=[0x03,
-              (adr&0xFF0000)>>16,
-              (adr&0xFF00)>>8,
-              adr&0xFF,
-              0];
-        self.SPItrans(data);
-        return ord(self.data[4]);
-    def SPIpeekblock(self,adr):
-        """Grab a byte from an SPI Flash ROM."""
-        data=[(adr&0xFF0000)>>16,
-              (adr&0xFF00)>>8,
-              adr&0xFF];
+    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(0x30,0x86,0,self.data);
+    def CCreleasecpu(self):
+        """Resume the CPU."""
+        self.writecmd(0x30,0x87,0,self.data);
+    def CCtest(self):
+        self.CCreleasecpu();
+        self.CChaltcpu();
+        #print "Status: %s" % self.CCstatusstr();
         
-        self.writecmd(0x01,0x02,3,data);
-        return self.data;
-    
-    def SPIjedecmanstr(self):
-        """Grab the JEDEC manufacturer string.  Call after SPIjedec()."""
-        man=self.JEDECmanufacturers[self.JEDECmanufacturer];
-        if man==0:
-            man="UNKNOWN";
-        return man;
-    
-    def SPIjedecstr(self):
-        """Grab the JEDEC manufacturer string.  Call after SPIjedec()."""
-        man=self.JEDECmanufacturers[self.JEDECmanufacturer];
-        if man==0:
-            man="UNKNOWN";
-        device=self.JEDECdevices[self.JEDECdevice];
-        if device==0:
-            device="???"
-        return "%s %s" % (man,device);
-    def MSP430setup(self):
-        """Move the FET into the MSP430 JTAG application."""
-        print "Initializing MSP430.";
-        self.writecmd(0x11,0x10,0,self.data);
+        #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 CCsetup(self):
         """Move the FET into the CC2430/CC2530 application."""
-        print "Initializing Chipcon.";
+        #print "Initializing Chipcon.";
         self.writecmd(0x30,0x10,0,self.data);
     def CCrd_config(self):
         """Read the config register of a Chipcon."""
@@ -191,7 +261,7 @@ class GoodFET:
                 0xFF00:"CCmissing"};
     def CCidentstr(self):
         ident=self.CCident();
-        chip=self.CCversions[ident&0xFF00];
+        chip=self.CCversions.get(ident&0xFF00);
         return "%s/r%02x" % (chip, ident&0xFF); 
     def CCident(self):
         """Get a chipcon's ID."""
@@ -208,11 +278,6 @@ class GoodFET:
     def CCdebuginstr(self,instr):
         self.writecmd(0x30,0x88,len(instr),instr);
         return ord(self.data[0]);
-    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 CCpeekcodebyte(self,adr):
         """Read the contents of code memory at an address."""
         self.data=[adr&0xff, (adr&0xff00)>>8];
@@ -253,140 +318,20 @@ class GoodFET:
                 str="%s %s" %(self.CCstatusbits[i],str);
             i*=2;
         return str;
-    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);
-        ident=self.MSP430ident();
-        print "Target identifies as %04x." % ident;
-    
     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();
+        #print "Status: %s." % self.CCstatusstr();
         self.CCreleasecpu();
         self.CChaltcpu();
-        print "Status: %s." % self.CCstatusstr();
+        #print "Status: %s." % self.CCstatusstr();
+        
     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);
-    def MSP430stop(self):
-        """Stop debugging."""
-        self.writecmd(0x11,0x21,0,self.data);
-    def MSP430haltcpu(self):
-        """Halt the CPU."""
-        self.writecmd(0x11,0xA0,0,self.data);
-    def MSP430releasecpu(self):
-        """Resume the CPU."""
-        self.writecmd(0x11,0xA1,0,self.data);
-    def CChaltcpu(self):
-        """Halt the CPU."""
-        self.writecmd(0x30,0x86,0,self.data);
-    def CCreleasecpu(self):
-        """Resume the CPU."""
-        self.writecmd(0x30,0x87,0,self.data);
-    def MSP430shiftir8(self,ins):
-        """Shift the 8-bit Instruction Register."""
-        data=[ins];
-        self.writecmd(0x11,0x80,1,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 MSP430ident(self):
-        """Grab self-identification word from 0x0FF0 as big endian."""
-        i=self.MSP430peek(0x0ff0);
-        return ((i&0xFF00)>>8)+((i&0xFF)<<8)
-    def MSP430test(self):
-        """Test MSP430 JTAG.  Requires that a chip be attached."""
-        if self.MSP430ident()==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.";
-            return;
-        self.MSP430poke(0x0200,temp); #restore old value.
-    def MSP430flashtest(self):
-        self.MSP430masserase();
-        i=0x2500;
-        while(i<0xFFFF):
-            if(self.MSP430peek(i)!=0xFFFF):
-                print "ERROR: Unerased flash at %04x."%i;
-            self.MSP430writeflash(i,0xDEAD);
-            i+=2;
-    def MSP430masserase(self):
-        """Erase MSP430 flash memory."""
-        self.writecmd(0x11,0xE3,0,None);
-    def MSP430writeflash(self,adr,val):
-        """Write a word of flash memory."""
-        if(self.MSP430peek(adr)!=0xFFFF):
-            print "FLASH ERROR: %04x not clear." % adr;
-        data=[adr&0xFF,(adr&0xFF00)>>8,val&0xFF,(val&0xFF00)>>8];
-        self.writecmd(0x11,0xE1,4,data);
-        rval=ord(self.data[0])+(ord(self.data[1])<<8);
-        if(val!=rval):
-            print "FLASH WRITE ERROR AT %04x.  Found %04x, wrote %04x." % (adr,rval,val);
-            
-    def MSP430dumpbsl(self):
-        self.MSP430dumpmem(0xC00,0xfff);
-    def MSP430dumpallmem(self):
-        self.MSP430dumpmem(0x200,0xffff);
-    def MSP430dumpmem(self,begin,end):
-        i=begin;
-        while i<end:
-            print "%04x %04x" % (i, self.MSP430peek(i));
-            i+=2;
-    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])!";
-        for i in range(0xE500,0xE600):
-            byte=self.CCpeekdatabyte(i);
-            print "data %04x: %02x" % (i,byte);
-            self.CCpokedatabyte(i,i&0xFF);
-            byte=self.CCpeekdatabyte(i);
-            print "data %04x: %02x" % (i,byte);
-        print "Status: %s." % self.CCstatusstr();
-        #Exit debugger
-        self.CCstop();
-        print "Done.";
+