have updater check HAVE_SPMINTEREFACE and raise error if not supported

[pub/USBaspLoader.git] / firmware / main.c

diff --git a/firmware/main.c b/firmware/main.c
index 5c78e31..c80ab7d 100644 (file)
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -1,7 +1,9 @@
 /* Name: main.c
  * Project: USBaspLoader
  * Author: Christian Starkjohann
+ * Author: Stephan Baerwolf
  * Creation Date: 2007-12-08
+ * Modification Date: 2012-11-10
  * Tabsize: 4
  * Copyright: (c) 2007 by OBJECTIVE DEVELOPMENT Software GmbH
  * License: GNU GPL v2 (see License.txt)
@@ -80,16 +82,6 @@ static void leaveBootloader() __attribute__((__noreturn__));
 #   define uint     unsigned int
 #endif
 
-/* defaults if not in config file: */
-#ifndef HAVE_EEPROM_PAGED_ACCESS
-#   define HAVE_EEPROM_PAGED_ACCESS 0
-#endif
-#ifndef HAVE_EEPROM_BYTE_ACCESS
-#   define HAVE_EEPROM_BYTE_ACCESS  0
-#endif
-#ifndef BOOTLOADER_CAN_EXIT
-#   define  BOOTLOADER_CAN_EXIT     0
-#endif
 
 /* allow compatibility with avrusbboot's bootloaderconfig.h: */
 #ifdef BOOTLOADER_INIT
@@ -123,9 +115,8 @@ typedef union longConverter{
 
 
 #if BOOTLOADER_CAN_EXIT
-static uchar                   requestBootLoaderExit;
-#endif
 static volatile unsigned char  stayinloader = 0xfe;
+#endif
 
 static longConverter_t         currentAddress; /* in bytes */
 static uchar                   bytesRemaining;
@@ -141,9 +132,13 @@ static const uchar  signatureBytes[4] = {
     SIGNATURE_BYTES
 #elif defined (__AVR_ATmega8__) || defined (__AVR_ATmega8A__) || defined (__AVR_ATmega8HVA__)
     0x1e, 0x93, 0x07, 0
+#elif defined (__AVR_ATmega32__)
+    0x1e, 0x95, 0x02, 0
 #elif defined (__AVR_ATmega48__) || defined (__AVR_ATmega48A__) || defined (__AVR_ATmega48P__)
+    #error ATmega48 does not support bootloaders!
     0x1e, 0x92, 0x05, 0
 #elif defined (__AVR_ATmega48PA__)
+    #error ATmega48 does not support bootloaders!
     0x1e, 0x92, 0x0A, 0
 #elif defined (__AVR_ATmega88__) || defined (__AVR_ATmega88A__) || defined (__AVR_ATmega88P__)
     0x1e, 0x93, 0x0a, 0
@@ -157,8 +152,6 @@ static const uchar  signatureBytes[4] = {
     0x1e, 0x94, 0x06, 0
 #elif defined (__AVR_ATmega168PA__)
     0x1e, 0x94, 0x0B, 0
-#elif defined (__AVR_ATmega32__)
-    0x1e, 0x95, 0x02, 0
 #elif defined (__AVR_ATmega324A__)
     0x1e, 0x95, 0x15, 0
 #elif defined (__AVR_ATmega324P__)
@@ -297,13 +290,15 @@ static uchar    replyBuffer[4];
         }
 
     }else if(rq->bRequest == USBASP_FUNC_DISCONNECT){
-      stayinloader        &= (0xfe);
+
 #if BOOTLOADER_CAN_EXIT
-      requestBootLoaderExit = 1;      /* allow proper shutdown/close of connection */
+      stayinloader        &= (0xfe);
 #endif
     }else{
         /* ignore: others, but could be USBASP_FUNC_CONNECT */
+#if BOOTLOADER_CAN_EXIT
        stayinloader       |= (0x01);
+#endif
     }
     return len;
 }
@@ -411,21 +406,13 @@ int __attribute__((noreturn)) main(void)
     GICR = (1 << IVSEL); /* move interrupts to boot flash section */
 #endif
     if(bootLoaderCondition()){
+#if NEED_WATCHDOG
        wdt_disable();    /* main app may have enabled watchdog */
-#if BOOTLOADER_CAN_EXIT
-        uchar i = 0, j = 0;
 #endif
         initForUsbConnectivity();
         do{
             usbPoll();
 #if BOOTLOADER_CAN_EXIT
-            if(requestBootLoaderExit){
-                if(--i == 0){
-                    if(--j == 0)
-                        break;
-                }
-            }
-#endif
        if (stayinloader >= 0x10) {
          if (!bootLoaderCondition()) {
            stayinloader-=0x10;
@@ -435,8 +422,13 @@ int __attribute__((noreturn)) main(void)
            if (stayinloader > 1) stayinloader-=2;
          }
        }
+#endif
 
-        }while (stayinloader);  /* main event loop */
+#if BOOTLOADER_CAN_EXIT
+        }while (stayinloader); /* main event loop, if BOOTLOADER_CAN_EXIT*/
+#else
+        }while (1);            /* main event loop */
+#endif
     }
     leaveBootloader();
 }