X-Git-Url: http://git.linex4red.de/pub/USBaspLoader.git/blobdiff_plain/5b0272d9af73a164da192d796fc33ec736b93f0a..refs/heads/testing:/updater/updater.c

diff --git a/updater/updater.c b/updater/updater.c
index 6b9cde3..479df80 100644
--- a/updater/updater.c
+++ b/updater/updater.c
@@ -2,14 +2,21 @@
   #define F_CPU 1000000UL /* 1 Mhz-Takt; hier richtigen Wert eintragen */
 #endif
 
-// 1) Test the "changed"     - feature by debugging a LED-PIN to high (PB0?)
-// 2) Test the "needs_erase" - feature by debugging a LED-PIN to high (PB1?)
-// #define mypgmdebug 1
 
+#include "../misc/iofixes.h"
 #include "../firmware/spminterface.h"
-#include "firmware.h"
+#include "usbasploader.h"
+
+// activate updaters full set of features
+#ifndef CONFIG_UPDATER_REDUCEWRITES
+  #define CONFIG_UPDATER_REDUCEWRITES
+#endif
+
+#ifndef CONFIG_UPDATER_CLEANMEMCLEAR
+  #define CONFIG_UPDATER_CLEANMEMCLEAR
+#endif
+
 
-#include <avr/io.h>
 #include <avr/interrupt.h>
 #include <avr/wdt.h>
 
@@ -20,7 +27,15 @@
 #include <util/delay.h>
 #include <string.h>
 
+#define	updater_pagefillcode	((1<<SPMEN))
+#define	updater_pageerasecode	((1<<PGERS) | (1<<SPMEN))
+#define	updater_pagewritecode	((1<<PGWRT) | (1<<SPMEN))
+
 
+#include "../firmware/bootloaderconfig.h"
+#if !HAVE_SPMINTEREFACE
+  #error "bootloader does not support updating itself! (HAVE_SPMINTEREFACE)"
+#endif
 
 // helpful definitions and makros ////
 
@@ -115,6 +130,25 @@ void temp_do_spm(const uint32_t flash_byteaddress, const uint8_t spmcrval, const
 typedef uint32_t mypgm_addr_t;
 typedef void (*mypgm_spminterface)(const uint32_t flash_byteaddress, const uint8_t spmcrval, const uint16_t dataword);
 
+#if FLASHEND > 65535
+#	define	FULLCORRECTFLASHADDRESS(addr)	(((mypgm_addr_t)(addr)) | (((mypgm_addr_t)FLASHADDRESS) & ((mypgm_addr_t)0xffff0000)))
+#	define	mymemcpy_PF mymemcpy_PF_far
+void *mymemcpy_PF_far (void *dest, mypgm_addr_t src, size_t n) {
+  uint8_t	*pagedata	= (void*)dest;
+  mypgm_addr_t	 pageaddr	= src;
+  size_t	i;
+
+  for (i=0;i<n;i+=1) {
+    pagedata[i]=pgm_read_byte_far(pageaddr);
+    pageaddr+=1;
+  }
+
+  return dest;
+}
+#else
+#	define	FULLCORRECTFLASHADDRESS(addr)	(addr)
+#	define	mymemcpy_PF memcpy_PF 
+#endif
 
 #if 0
 size_t mypgm_readpage(const mypgm_addr_t byteaddress,const void* buffer, const size_t bufferbytesize) {
@@ -125,7 +159,7 @@ size_t mypgm_readpage(const mypgm_addr_t byteaddress,const void* buffer, const s
   size_t	i;
   
   for (i=0;i<pagesize;i+=1) {
-    pagedata[i]=pgm_read_word(pageaddr);
+    pagedata[i]=pgm_read_word_far(pageaddr);
     pageaddr+=2;
   }
   
@@ -137,12 +171,13 @@ size_t mypgm_readpage(const mypgm_addr_t byteaddress,const void* buffer, const s
   size_t	result		= (bufferbytesize < SPM_PAGESIZE)?bufferbytesize:SPM_PAGESIZE;
   mypgm_addr_t	pageaddr	= byteaddress - (byteaddress % SPM_PAGESIZE);
   
-  memcpy_PF((void*)buffer, (uint_farptr_t)pageaddr, result);
+  mymemcpy_PF((void*)buffer, (uint_farptr_t)pageaddr, result);
   
   return result;
 }
 #endif
 
+#ifdef CONFIG_UPDATER_REDUCEWRITES
 size_t mypgm_WRITEpage(const mypgm_addr_t byteaddress,const void* buffer, const size_t bufferbytesize, mypgm_spminterface spmfunc) {
   size_t	result		= (bufferbytesize < SPM_PAGESIZE)?bufferbytesize:SPM_PAGESIZE;
   size_t	pagesize	= result >> 1;
@@ -156,7 +191,11 @@ size_t mypgm_WRITEpage(const mypgm_addr_t byteaddress,const void* buffer, const
   
   // just check, if page needs a rewrite or an erase...
   for (i=0;i<pagesize;i+=1) {
+#if (FLASHEND > 65535)
+    deeword=pgm_read_word_far(pageaddr);
+#else
     deeword=pgm_read_word(pageaddr);
+#endif
 
     if (deeword != pagedata[i]) changed=1;
 
@@ -178,35 +217,23 @@ size_t mypgm_WRITEpage(const mypgm_addr_t byteaddress,const void* buffer, const
   }
 
   if (changed) {
-#ifdef mypgmdebug
-    DDRB  |= (1<<PB0);
-    PORTB |= (1<<PB0);
-#endif
     
     if (needs_erase) {
       //do a page-erase, ATTANTION: flash only can be erased a limited number of times !
-      spmfunc(pageaddr_bakup, 0x3, 0);
-#ifndef mypgmdebug
-    }
-#else 
-    } else {
-      DDRB  |= (1<<PB1);
-      PORTB |= (1<<PB1);
+      spmfunc(pageaddr_bakup, updater_pageerasecode, 0);
     }
-#endif
-
     
     // from now on, the page is assumed empty !! (hopefully our code is located somewhere else!)
     // now, fill the tempoary buffer
     // ATTANTION: see comment on "do_spm" !
     pageaddr	= pageaddr_bakup;
     for (i=0;i<pagesize;i+=1) {
-      spmfunc(pageaddr, 0x1, pagedata[i]);
+      spmfunc(pageaddr, updater_pagefillcode, pagedata[i]);
       pageaddr+=2;
     }
     
     // so, now finally write the page to the FLASH
-    spmfunc(pageaddr_bakup, 0x5, 0);
+    spmfunc(pageaddr_bakup, updater_pagewritecode, 0);
   } else {
     // no change - no write...
     result = 0;
@@ -215,31 +242,78 @@ size_t mypgm_WRITEpage(const mypgm_addr_t byteaddress,const void* buffer, const
   
   return result;
 }
+#else
+size_t mypgm_WRITEpage(const mypgm_addr_t byteaddress,const void* buffer, const size_t bufferbytesize, mypgm_spminterface spmfunc) {
+  size_t	result		= (bufferbytesize < SPM_PAGESIZE)?bufferbytesize:SPM_PAGESIZE;
+  size_t	pagesize	= result >> 1;
+  uint16_t	*pagedata	= (void*)buffer;
+  mypgm_addr_t	pageaddr_bakup	= byteaddress - (byteaddress % SPM_PAGESIZE);
+  mypgm_addr_t	pageaddr	= pageaddr_bakup;
+
+  size_t	i;
+    
+  //do a page-erase, ATTANTION: flash only can be erased a limited number of times !
+  spmfunc(pageaddr_bakup, updater_pageerasecode, 0);
+    
+  // from now on, the page is assumed empty !! (hopefully our code is located somewhere else!)
+  // now, fill the tempoary buffer
+  // ATTANTION: see comment on "do_spm" !
+  pageaddr	= pageaddr_bakup;
+  for (i=0;i<pagesize;i+=1) {
+    spmfunc(pageaddr, updater_pagefillcode, pagedata[i]);
+    pageaddr+=2;
+  }
+    
+  // so, now finally write the page to the FLASH
+  spmfunc(pageaddr_bakup, updater_pagewritecode, 0);
+  
+  return result;
+}
+#endif
+
+#if defined(UPDATECRC32)
+#include "crccheck.c"
+#endif
 
 // #pragma GCC diagnostic ignored "-Wno-pointer-to-int-cast"
 int main(void)
 {
+#if defined(UPDATECRC32)
+    uint32_t crcval;
+#endif
     size_t  i;
     uint8_t buffer[SPM_PAGESIZE];
     
     wdt_disable();
     cli();
 
-#ifdef mypgmdebug
-    DDRD  |= (1<<PD3);
-    DDRD  |= (1<<PD5);
-    PORTD |= (1<<PD3);
-    PORTD |= (1<<PD5);
+#if defined(UPDATECRC32)
+    // check if new firmware-image is corrupted
+    crcval = D_32;
+    for (i=0;i<SIZEOF_new_firmware;i+=1) {
+#if (FLASHEND > 65535)
+      crcval = update_crc_32(crcval, pgm_read_byte_far(FULLCORRECTFLASHADDRESS(&new_firmware[i])));
+#else
+      crcval = update_crc_32(crcval, pgm_read_byte(FULLCORRECTFLASHADDRESS(&new_firmware[i])));
 #endif
+    }
+    crcval ^= D_32;
 
-
+    // allow to change the firmware
+    if (crcval == ((uint32_t)UPDATECRC32)) {
+#endif
 
     // check if firmware would change...
     buffer[0]=0;
     for (i=0;i<SIZEOF_new_firmware;i+=2) {
       uint16_t a, b;
-      a=pgm_read_word((void*)&new_firmware[i]);
+#if (FLASHEND > 65535)
+      a=pgm_read_word_far(FULLCORRECTFLASHADDRESS(&new_firmware[i]));
+      b=pgm_read_word_far(NEW_BOOTLOADER_ADDRESS+i);
+#else
+      a=pgm_read_word(FULLCORRECTFLASHADDRESS(&new_firmware[i]));
       b=pgm_read_word(NEW_BOOTLOADER_ADDRESS+i);
+#endif
       if (a!=b) {
 	buffer[0]=1;
 	break;
@@ -251,67 +325,45 @@ int main(void)
     // need to change the firmware...
     if (buffer[0]) {
 
-
       // A
       // copy the current "bootloader__do_spm" to tempoary position via std. "bootloader__do_spm"
       for (i=0;i<TEMP_SPM_BLKSIZE;i+=SPM_PAGESIZE) {
 	mypgm_WRITEpage(TEMP_SPM_PAGEADR+i, buffer, mypgm_readpage(funcaddr___bootloader__do_spm+i, buffer, sizeof(buffer)), do_spm);
-  #ifdef mypgmdebug
-	PORTD ^= (1<<PD3);
-	_delay_ms(500);
-	PORTD ^= (1<<PD3);
-	_delay_ms(500);
-  #endif
       }
 
       // B
       // start updating the firmware to "NEW_BOOTLOADER_ADDRESS" until at least "TEMP_SPM_BLKSIZE"-bytes after "NEW_SPM_ADDRESS" were written
       // therefore use the tempoary "bootloader__do_spm" (since we most probably will overwrite the default do_spm)
       for (i=0;;i+=SPM_PAGESIZE) {
+#ifdef CONFIG_UPDATER_CLEANMEMCLEAR
 	memset((void*)buffer, 0xff, sizeof(buffer));
-	memcpy_PF((void*)buffer, (uint_farptr_t)((void*)&new_firmware[i]), ((SIZEOF_new_firmware-i)>sizeof(buffer))?sizeof(buffer):(SIZEOF_new_firmware-i));
+#endif
+	mymemcpy_PF((void*)buffer, (uint_farptr_t)(FULLCORRECTFLASHADDRESS(&new_firmware[i])), ((SIZEOF_new_firmware-i)>sizeof(buffer))?sizeof(buffer):(SIZEOF_new_firmware-i));
 	
 	mypgm_WRITEpage(NEW_BOOTLOADER_ADDRESS+i, buffer, sizeof(buffer), temp_do_spm);
 	
-  #ifdef mypgmdebug
-	PORTD ^= (1<<PD3);
-	_delay_ms(500);
-	PORTD ^= (1<<PD3);
-	_delay_ms(500);
-  #endif
-
 	if ((NEW_BOOTLOADER_ADDRESS+i) > (NEW_SPM_ADDRESS+TEMP_SPM_BLKSIZE)) break;
       }
 
       // C
       // continue writeing the new_firmware after "NEW_SPM_ADDRESS+TEMP_SPM_BLKSIZE" this time use the "new_do_spm"
       for (;i<SIZEOF_new_firmware;i+=SPM_PAGESIZE) {
+#ifdef CONFIG_UPDATER_CLEANMEMCLEAR
 	memset((void*)buffer, 0xff, sizeof(buffer));
-	memcpy_PF((void*)buffer, (uint_farptr_t)((void*)&new_firmware[i]), ((SIZEOF_new_firmware-i)>sizeof(buffer))?sizeof(buffer):(SIZEOF_new_firmware-i));
+#endif
+	mymemcpy_PF((void*)buffer, (uint_farptr_t)(FULLCORRECTFLASHADDRESS(&new_firmware[i])), ((SIZEOF_new_firmware-i)>sizeof(buffer))?sizeof(buffer):(SIZEOF_new_firmware-i));
 
 	mypgm_WRITEpage(NEW_BOOTLOADER_ADDRESS+i, buffer, sizeof(buffer), new_do_spm);
 	
-  #ifdef mypgmdebug
-	PORTD ^= (1<<PD3);
-	_delay_ms(500);
-	PORTD ^= (1<<PD3);
-	_delay_ms(500);
-  #endif
       }
 
 
 
     }
 
-#ifdef mypgmdebug
-    PORTD |= (1<<PD3);
-#endif
-    while(1)
-    {
-#ifdef mypgmdebug
-      PORTD ^= (1<<PD5);
-      _delay_ms(100);
-#endif
+#if defined(UPDATECRC32)
     }
+#endif
 
+    return 0;
 }