// $Id: bootloader.h,v 1.13 2004/08/26 22:55:09 jwhui Exp $/*									tab:4 * * * "Copyright (c) 2000-2004 The Regents of the University  of California.   * All rights reserved. * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose, without fee, and without written agreement is * hereby granted, provided that the above copyright notice, the following * two paragraphs and the author appear in all copies of this software. *  * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *  * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS." * *//** * bootloader.h - For avr platform. * * @author  Jonathan Hui <jwhui@cs.berkeley.edu> * @since   0.1 */#ifndef __AVR_BOOTLOADER_H__#define __AVR_BOOTLOADER_H__#include <inttypes.h>typedef uint8_t (*programBufPtr_t)(void*, uint32_t, uint16_t);typedef uint8_t (*programImgPtr_t)(uint32_t);#define BL_EXTERNAL_PAGE_SIZE         ((uint32_t)256)#define BL_GOLDEN_IMG_ADDR            ((uint32_t)0)#define BL_GESTURE_MAX_COUNT          5#define IS_WDT_RESET()					\  (bit_is_set(MCUCSR, WDRF) && (!IS_NETPROG_RESET()) && (!IS_PROG_FAIL_RESET()))#define IS_POWER_ON_RESET()			\  bit_is_set(MCUCSR, PORF)#define IS_BROWN_OUT_RESET()			\  bit_is_set(MCUCSR, BORF)#define IS_EXTERNAL_RESET()			\  (bit_is_set(MCUCSR, EXTRF) && (!IS_POWER_ON_RESET()) && (!IS_NETPROG_RESET()))#define IS_NETPROG_RESET()						\  (eeprom_read_byte((uint8_t*)BL_FLAGS_ADDR) & BL_EXPLICIT_REBOOT)#define IS_PROG_FAIL_RESET()						\  (eeprom_read_byte((uint8_t*)BL_FLAGS_ADDR) & BL_PROGRAM_FAIL_FLAG)#define CLEAR_WDT_RESET_FLAG()			\  cbi(MCUCSR,WDRF);#define CLEAR_POWER_ON_RESET_FLAG()		\  cbi(MCUCSR,PORF);#define CLEAR_BROWN_OUT_RESET_FLAG()		\  cbi(MCUCSR,BORF);#define CLEAR_EXTERNAL_RESET_FLAG()		\  cbi(MCUCSR,EXTRF);#define CLEAR_NETPROG_RESET_FLAG()				\  {								\    uint8_t tmp = eeprom_read_byte((uint8_t*)BL_FLAGS_ADDR);	\    tmp &= ~BL_EXPLICIT_REBOOT;					\    eeprom_write_byte((uint8_t*)BL_FLAGS_ADDR, tmp);		\    while(!eeprom_is_ready());					\  }#define CLEAR_PROG_FAIL_RESET_FLAG()				\  {								\    uint8_t tmp = eeprom_read_byte((uint8_t*)BL_FLAGS_ADDR);	\    tmp &= ~BL_PROGRAM_FAIL_FLAG;				\    eeprom_write_byte((uint8_t*)BL_FLAGS_ADDR, tmp);		\    while(!eeprom_is_ready());					\  }#define BL_RESET_LOG_ENTRY_SIZE 3 // in bits#define BL_RESET_LOG_ENTRY_MASK 7enum {  BL_NULL_ENTRY_RESET = 0,  BL_WDT_RESET = 1,   BL_EXTERNAL_RESET = 2,  BL_POWER_ON_RESET = 3,  BL_BROWN_OUT_RESET = 4,  BL_PROGRAM_FAIL = 5,  BL_NETPROG_RESET = 6,};enum {  BL_GOLDEN_IMG_LOADED = 1,  BL_EXPLICIT_REBOOT = 2,  BL_PROGRAM_FAIL_FLAG = 4,};// reset counters#define BL_WDT_RESET_COUNTER          0xFE0 // 2 bytes#define BL_EXTERNAL_RESET_COUNTER     0xFE2 // 2 bytes#define BL_POWER_ON_RESET_COUNTER     0xFE4 // 2 bytes#define BL_BROWN_OUT_RESET_COUNTER    0xFE6 // 2 bytes#define BL_PROGRAM_FAIL_COUNTER       0xFE8 // 2 bytes#define BL_NETPROG_RESET_COUNTER      0xFEA // 2 bytes#define BL_RESET_HISTORY              0xFEC // 2 bytes// bootloader state#define BL_LOAD_IMG_ADDR              0xFF0 // 1 byte#define BL_GESTURE_COUNT_ADDR         0xFF1 // 1 byte#define BL_NEW_IMG_START_PAGE_ADDR    0xFF2 // 2 bytes#define BL_CUR_IMG_START_PAGE_ADDR    0xFF4 // 2 bytes#define BL_PROGRAM_BUF_ADDR           0xFF6 // 4 bytes#define BL_FLAGS_ADDR                 0xFFE // 1 byte#endif