avr_flash.h

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/*
 *  avr_flash.h
 * 
 *  Copyright 2008, 2009 Michel Pollet <buserror@gmail.com>
 * 
 *  This file is part of simavr.
 * 
 *  simavr is free software: you can redistribute it and/or modify it under the terms of the GNU
 *  General Public License as published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 * 
 *  simavr is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 *  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 *  Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License along with simavr.  If not, see
 *  <http://www.gnu.org/licenses/>.
*/

#ifndef __AVR_FLASH_H___
#define __AVR_FLASH_H___

#ifdef __cplusplus
extern "C"
{
#endif

#include "sim_avr.h"

  typedef struct avr_flash_t
  {
    avr_io_t io;

    uint16_t flags;
    uint16_t *tmppage;
    uint8_t *tmppage_used;
    uint16_t spm_pagesize;
    uint8_t r_spm;
    avr_regbit_t selfprgen;
    avr_regbit_t pgers;   
    avr_regbit_t pgwrt;   
    avr_regbit_t blbset;   
    avr_regbit_t rwwsre;   
    avr_regbit_t rwwsb;   

    avr_int_vector_t flash;   
  } avr_flash_t;

#define AVR_SELFPROG_HAVE_RWW (1 << 0)

  void avr_flash_init (avr_t * avr, avr_flash_t * p);

#define AVR_IOCTL_FLASH_SPM  AVR_IOCTL_DEF('f','s','p','m')

#define AVR_SELFPROG_DECLARE_INTERNAL(_spmr, _spen, _vector)    \
  .r_spm = _spmr,                       \
    .spm_pagesize = SPM_PAGESIZE,               \
    .selfprgen = AVR_IO_REGBIT(_spmr, _spen),           \
    .pgers = AVR_IO_REGBIT(_spmr, PGERS),           \
    .pgwrt = AVR_IO_REGBIT(_spmr, PGWRT),           \
    .blbset = AVR_IO_REGBIT(_spmr, BLBSET),         \
    .flash = {                          \
    .enable = AVR_IO_REGBIT(_spmr, SPMIE),          \
    .vector = _vector,                      \
  }                             \

#define AVR_SELFPROG_DECLARE_NORWW(_spmr, _spen, _vector)   \
  .selfprog = {                         \
    .flags = 0,                         \
    AVR_SELFPROG_DECLARE_INTERNAL(_spmr, _spen, _vector),   \
  }

#define AVR_SELFPROG_DECLARE(_spmr, _spen, _vector)     \
  .selfprog = {                         \
    .flags = AVR_SELFPROG_HAVE_RWW,             \
    AVR_SELFPROG_DECLARE_INTERNAL(_spmr, _spen, _vector),   \
    .rwwsre = AVR_IO_REGBIT(_spmr, RWWSRE),         \
    .rwwsb = AVR_IO_REGBIT(_spmr, RWWSB),           \
  }

#ifdef __cplusplus
};
#endif

#endif /* __AVR_FLASH_H___ */