#ifndef __bootloaderconfig_h_included__
#define __bootloaderconfig_h_included__
-#include <avr/io.h>
+#include "../misc/iofixes.h"
/*
General Description:
* "B", the registers PORTB, PINB and DDRB will be used.
*/
#ifndef USB_CFG_INTPORT_BIT
- #if (defined(__AVR_ATmega640__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__))
+ #if (defined(__AVR_ATmega640__) || defined (__AVR_ATmega128__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__))
#define USB_CFG_INTPORT_BIT 0
#else
#define USB_CFG_INTPORT_BIT 2
* as soon as the programming software disconnects.
*/
-#ifndef BOOTLOADER_LOOPCYCLES_TIMEOUT
-# define BOOTLOADER_LOOPCYCLES_TIMEOUT 0
+#ifdef CONFIG_BOOTLOADER_LOOPCYCLES_TIMEOUT
+# define BOOTLOADER_LOOPCYCLES_TIMEOUT (CONFIG_BOOTLOADER_LOOPCYCLES_TIMEOUT)
+#else
+# define BOOTLOADER_LOOPCYCLES_TIMEOUT (0)
#endif
/*
* When greater than "0", "BOOTLOADER_LOOPCYCLES_TIMEOUT"
* exit as long as bootLoaderConditionSimple stays on.
*/
+#ifdef CONFIG_HAVE__BOOTLOADER_ABORTTIMEOUTONACT
+#endif
+/*
+ * When defined, the bootloader will abort the timeout when
+ * it sees some activity (bootLoaderConditionSimple() or
+ * programming).
+ * After aborting timeout, the bootloader falls back to
+ * conventional exitting.
+ */
+
#ifdef CONFIG_HAVE__BOOTLOADER_ALWAYSENTERPROGRAMMODE
+# if (BOOTLOADER_CAN_EXIT)
+# define BOOTLOADER_ALWAYSENTERPROGRAMMODE 1
+# else
+# define BOOTLOADER_ALWAYSENTERPROGRAMMODE 0
+# endif
+#else
+# define BOOTLOADER_ALWAYSENTERPROGRAMMODE 0
#endif
/*
* Ignore bootLoaderCondition() (BUT NOT bootLoaderConditionSimple())
* and always enter the program-mode.
* This is helpful to emulate behaviour of Arduino bootloaders
+ *
+ * However, this feature may be dangerous, since bootloader may never exit.
+ * So it is enabled, only if "CONFIG_NO__BOOTLOADER_CAN_EXIT" is disabled.
+ *
+ */
+
+#ifdef CONFIG_HAVE__BOOTLOADER_IGNOREPROGBUTTON
+# if ( (BOOTLOADER_ALWAYSENTERPROGRAMMODE) && (defined(BOOTLOADER_CAN_EXIT)) && (BOOTLOADER_LOOPCYCLES_TIMEOUT >= 8) )
+# define BOOTLOADER_IGNOREPROGBUTTON 1
+# else
+# define BOOTLOADER_IGNOREPROGBUTTON 0
+# endif
+#endif
+/*
+ * Generates an USBaspLoader without using the PROGBUTTON.
+ * It can be used to reduce the required PINcount for USBaspLoader
+ * on the MCU.
+ * However this feature is very dangerous, so it becomes only
+ * enabled, if "CONFIG_HAVE__BOOTLOADER_ALWAYSENTERPROGRAMMODE" is
+ * enabled and "CONFIG_NO__BOOTLOADER_CAN_EXIT" is disabled, too.
+ * Additionally "BOOTLOADER_LOOPCYCLES_TIMEOUT" must be greater
+ * or equal than 8 (In order to give user enough time to program).
+ *
+ * When active, "JUMPER_PORT" and "JUMPER_BIT" are ignored and
+ * can be soldered otherwise.
+ */
+
+#ifdef CONFIG_NO__BOOTLOADER_ADDITIONALDEVICEWAIT
+# define HAVE_BOOTLOADER_ADDITIONALMSDEVICEWAIT 0
+#else
+# define HAVE_BOOTLOADER_ADDITIONALMSDEVICEWAIT 50
+#endif
+/*
+ * When enabling "HAVE_BOOTLOADER_ADDITIONALMSDEVICEWAIT", then
+ * the bootloader will alway delay its bootup by the configured
+ * number of milliseconds.
+ * This gives the pullups additional time to charge up.
*/
//#define SIGNATURE_BYTES 0x1e, 0x93, 0x07, 0 /* ATMega8 */
static inline void bootLoaderInit(void)
{
+#if (BOOTLOADER_IGNOREPROGBUTTON)
+#else
PIN_DDR(JUMPER_PORT) = 0;
PIN_PORT(JUMPER_PORT) = (1<< PIN(JUMPER_PORT, JUMPER_BIT)); /* activate pull-up */
+#endif
// deactivated by Stephan - reset after each avrdude op is annoing!
// if(!(MCUCSR & (1 << EXTRF))) /* If this was not an external reset, ignore */
static inline void bootLoaderExit(void)
{
+#if (BOOTLOADER_IGNOREPROGBUTTON)
+#else
PIN_PORT(JUMPER_PORT) = 0; /* undo bootLoaderInit() changes */
+#endif
}
-#define bootLoaderConditionSimple() ((PIN_PIN(JUMPER_PORT) & (1 << PIN(JUMPER_PORT, JUMPER_BIT))) == 0)
+#if (BOOTLOADER_IGNOREPROGBUTTON)
+# define bootLoaderConditionSimple() (false)
+#else
+# define bootLoaderConditionSimple() ((PIN_PIN(JUMPER_PORT) & (1 << PIN(JUMPER_PORT, JUMPER_BIT))) == 0)
+#endif
#if (HAVE_BOOTLOADERENTRY_FROMSOFTWARE)
/*
static volatile uint8_t __BOOTLOADERENTRY_FROMSOFTWARE__bootup_RAMEND_doesmatch __attribute__ ((section(".noinit")));
static volatile uint8_t __BOOTLOADERENTRY_FROMSOFTWARE__bootup_MCUCSR __attribute__ ((section(".noinit")));
-# ifdef CONFIG_HAVE__BOOTLOADER_ALWAYSENTERPROGRAMMODE
+# if (BOOTLOADER_ALWAYSENTERPROGRAMMODE)
# define bootLoaderCondition() (true)
# else
static inline bool bootLoaderCondition(void)
}
# endif
#else
-# ifdef CONFIG_HAVE__BOOTLOADER_ALWAYSENTERPROGRAMMODE
+# if (BOOTLOADER_ALWAYSENTERPROGRAMMODE)
# define bootLoaderCondition() (true)
# else
# define bootLoaderCondition bootLoaderConditionSimple