From: thequux <thequux@12e2690d-a6be-4b82-a7b7-67c4a43b65c8>
Date: Tue, 16 Nov 2010 20:40:39 +0000 (+0000)
Subject: Added basic AVR flashing support, and an associated avrdude patch
X-Git-Url: http://git.rot13.org/?p=goodfet;a=commitdiff_plain;h=3e4992b4d109f361b42abdda403471860edfeabf;ds=sidebyside

Added basic AVR flashing support, and an associated avrdude patch

git-svn-id: https://svn.code.sf.net/p/goodfet/code/trunk@763 12e2690d-a6be-4b82-a7b7-67c4a43b65c8
---

diff --git a/firmware/apps/avr/avr.c b/firmware/apps/avr/avr.c
index 9531563..0cc4c0d 100644
--- a/firmware/apps/avr/avr.c
+++ b/firmware/apps/avr/avr.c
@@ -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);
diff --git a/firmware/include/avr.h b/firmware/include/avr.h
index c56d86c..f0e8614 100644
--- a/firmware/include/avr.h
+++ b/firmware/include/avr.h
@@ -55,3 +55,5 @@ u8 avr_isready();
 #define AVR_READFUSES 0x84
 //! Read calibration byte.
 #define AVR_READCAL 0x85
+//! Bulk load data
+#define AVR_BULKLOAD 0x86