Added basic AVR flashing support, and an associated avrdude patch

[goodfet] / firmware / apps / avr / avr.c

diff --git a/firmware/apps/avr/avr.c b/firmware/apps/avr/avr.c
index 53d9f30..0cc4c0d 100644 (file)
--- a/firmware/apps/avr/avr.c
+++ b/firmware/apps/avr/avr.c
@@ -24,18 +24,18 @@ void avrconnect(){
   avrsetup(); //Cut this?
   
   SETSS;
-  delay(50);
+  //delay(50);
   
   //Pulse !RST (SS) at least twice while CLK is low.
   CLRCLK;
   CLRSS;
-  delay(5);
+  //delay(5);
 
   SETSS;
   CLRCLK;
-  delay(5);
+  //delay(5);
   CLRSS;
-  delay(5);
+  //delay(5);
   
   //Enable programming
   avr_prgen();
@@ -130,6 +130,16 @@ u8 avr_peekflash(u16 adr){
     return avrexchange(0x20,a>>8,a&0xff,0);
 }
 
+void avr_bulk_load(u16 start, u16 len, u8 *data) {
+  u16 adr;
+  for (adr = 0; adr < len; adr++) {
+    u16 a = adr + start;
+    avrexchange((adr & 1) ? 0x48 : 0x40,
+               a >> 9,
+               (a >> 1) & 0xff,
+               data[adr]);
+  }
+}
 
 //! Handles an AVR command.
 void avrhandle(unsigned char app,
@@ -158,6 +168,9 @@ void avrhandle(unsigned char app,
     avrconnect();
     txdata(app,verb,0);
     break;//Used to fall through here.
+  case STOP:
+    SETSS;
+    txdata(app, verb, 0);
   case AVR_PEEKSIG:
     for(i=0;i<4;i++)
       cmddata[i]=avr_sig(i);
@@ -182,6 +195,16 @@ void avrhandle(unsigned char app,
     cmddata[0]=avr_peekeeprom(cmddataword[0]);
     txdata(app,verb,1);
     break;
+  case AVR_BULKLOAD:
+    if (len < 3) {
+      debugstr("Length too short");
+      txdata(app, NOK, 0);
+    } else {
+      at = cmddataword[0];
+      avr_bulk_load(at, len - 2, cmddata + 2);
+      txdata(app, verb, 0);
+    }
+    break;
   case PEEK:
     //cmddata[0]=avr_peekflash(cmddataword[0]);
     //txdata(app,verb,1);