X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FGoodFETSPI.py;h=9c684b7c7fd14b1af7c96b830a29888385427162;hp=e0a6126d614fc3d92ae70d12b1bc8705954bd309;hb=b606e1a567586b0498a0632142904ad1a79d6e44;hpb=aa39840460c7b1c557beb82f3154cb38978d9607

diff --git a/client/GoodFETSPI.py b/client/GoodFETSPI.py
index e0a6126..9c684b7 100644
--- a/client/GoodFETSPI.py
+++ b/client/GoodFETSPI.py
@@ -25,11 +25,28 @@ class GoodFETSPI(GoodFET):
         self.writecmd(0x01,0x00,len(data),data);
         return self.data;
 
+class GoodFETSPI25C(GoodFETSPI):
+    #opcodes
+    WREN=0x06;
+    WRDI=0x04;
+    RDSR=0x05;
+    WRSR=0x01;
+    READ=0x03;
+    WRITE=0x02;
+    
+    def peek8(self,adr,memory="vn"):
+        """Read a byte from the given address."""
+        data=self.SPItrans([self.READ,(adr>>8)&0xFF,adr&0xFF,0x00]);
+        return ord(data[3]);
+
+
 class GoodFETSPIFlash(GoodFETSPI):
     JEDECmanufacturers={0xFF: "MISSING",
                         0xEF: "Winbond",
                         0xC2: "MXIC",
-                        0x20: "Numonyx/ST"
+                        0x20: "Numonyx/ST",
+                        0x1F: "Atmel",
+                        0x01: "AMD/Spansion"
                         };
 
     JEDECdevices={0xFFFFFF: "MISSING",
@@ -43,7 +60,9 @@ class GoodFETSPIFlash(GoodFETSPI):
                   0xC22015: "MX25L1605D",
                   0xC22014: "MX25L8005",
                   0xC22013: "MX25L4005",
-                  0x204011: "M45PE10"
+                  0x204011: "M45PE10",
+                  0x202014: "M25P80",
+                  0x1f4501: "AT24DF081",
                   };
     
     JEDECsizes={0x17: 0x800000,
@@ -61,13 +80,17 @@ class GoodFETSPIFlash(GoodFETSPI):
         """Grab an SPI Flash ROM's JEDEC bytes."""
         data=[0x9f, 0, 0, 0];
         data=self.SPItrans(data);
+        
         self.JEDECmanufacturer=ord(data[1]);
         self.JEDECtype=ord(data[2]);
         self.JEDECcapacity=ord(data[3]);
         self.JEDECsize=self.JEDECsizes.get(self.JEDECcapacity);
         if self.JEDECsize==None:
             self.JEDECsize=0;
-        self.JEDECdevice=(ord(data[1])<<16)+(ord(data[2])<<8)+ord(data[3]);
+        jedec=(ord(data[1])<<16)+(ord(data[2])<<8)+ord(data[3]);
+        if jedec==0x1F4501:
+            self.JEDECsize=1024**2;
+        self.JEDECdevice=jedec;
         return data;
     def SPIpeek(self,adr):
         """Grab a byte from an SPI Flash ROM."""
@@ -78,30 +101,31 @@ class GoodFETSPIFlash(GoodFETSPI):
               0];
         self.SPItrans(data);
         return ord(self.data[4]);
-    def SPIpeekblock(self,adr,blocks=1):
+    def SPIpeekblock(self,adr):
         """Grab a few block from an SPI Flash ROM.  Block size is unknown"""
         data=[(adr&0xFF0000)>>16,
               (adr&0xFF00)>>8,
-              adr&0xFF,
-              blocks];
+              adr&0xFF];
         
-        self.writecmd(0x01,0x02,4,data,blocks);
+        self.writecmd(0x01,0x02,3,data);
         return self.data;
     
     def SPIpokebyte(self,adr,val):
         self.SPIpokebytes(adr,[val]);
     def SPIpokebytes(self,adr,data):
-        #self.SPIwriteenable();
-        adranddata=[(adr&0xFF0000)>>16,
-              (adr&0xFF00)>>8,
-              adr&0xFF
-              ]+data;
+        #Used to be 24 bits, BE, not 32 bits, LE.
+        adranddata=[adr&0xFF,
+                    (adr&0xFF00)>>8,
+                    (adr&0xFF0000)>>16,
+                    0, #MSB
+                    ]+data;
+        #print "%06x: poking %i bytes" % (adr,len(data));
         self.writecmd(0x01,0x03,
                       len(adranddata),adranddata);
         
     def SPIchiperase(self):
         """Mass erase an SPI Flash ROM."""
-        self.writecmd(0x01,0x81,0,[]);
+        self.writecmd(0x01,0x81);
     def SPIwriteenable(self):
         """SPI Flash Write Enable"""
         data=[0x06];