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cfs-coffee-arch.h
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/**
* \addtogroup mb851-platform
*
* @{
*/
/*
* Copyright (c) 2010, STMicroelectronics.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/**
* \file
* Coffee architecture-dependent header for the STM32W108-based mb851
* platform. STM32W108 has 128KB of program flash.
* \author
* Salvatore Pitrulli <[email protected]>
*/
#ifndef CFS_COFFEE_ARCH_H
#define CFS_COFFEE_ARCH_H
#include "contiki-conf.h"
#include "hal/error.h"
#include "hal/micro/cortexm3/flash.h"
/*
* STM32W108 has 128KB of program flash in 128 pages of 1024 bytes each = 128KB.
* The smallest erasable unit is one page and the smallest writable
* unit is an aligned 16-bit half-word.
*/
/* Byte page size, starting address on page boundary, and size of file system */
#define FLASH_START 0x8000000
/* Minimum erasable unit. */
#define FLASH_PAGE_SIZE 1024
/* Last 3 pages reserved for NVM. */
#define FLASH_PAGES 125
/* Minimum reservation unit for Coffee. It can be changed by the user. */
#define COFFEE_PAGE_SIZE (FLASH_PAGE_SIZE/4)
/*
* If using IAR, COFFEE_ADDRESS reflects the static value in the linker script
* iar-cfg-coffee.icf, so it can't be passed as a parameter for Make.
*/
#ifdef __ICCARM__
#define COFFEE_ADDRESS 0x8010c00
#endif
#if (COFFEE_ADDRESS & 0x3FF) != 0
#error "COFFEE_ADDRESS not aligned to a 1024-bytes page boundary."
#endif
#define COFFEE_PAGES ((FLASH_PAGES*FLASH_PAGE_SIZE- \
(COFFEE_ADDRESS-FLASH_START))/COFFEE_PAGE_SIZE)
#define COFFEE_START (COFFEE_ADDRESS & ~(COFFEE_PAGE_SIZE-1))
#define COFFEE_SIZE (COFFEE_PAGES*COFFEE_PAGE_SIZE)
/* These must agree with the parameters passed to makefsdata */
#define COFFEE_SECTOR_SIZE FLASH_PAGE_SIZE
#define COFFEE_NAME_LENGTH 20
/* These are used internally by the AVR flash read routines */
/* Word reads are faster but take 130 bytes more PROGMEM */
/* #define FLASH_WORD_READS 1 */
/*
* 1 = Slower reads, but no page writes after erase and 18 bytes less PROGMEM.
* Best for dynamic file system
*/
/* #define FLASH_COMPLEMENT_DATA 0 */
/* These are used internally by the coffee file system */
#define COFFEE_MAX_OPEN_FILES 4
#define COFFEE_FD_SET_SIZE 8
#define COFFEE_DYN_SIZE (COFFEE_PAGE_SIZE*1)
/* Micro logs are not needed for single page sectors */
#define COFFEE_MICRO_LOGS 0
#define COFFEE_LOG_TABLE_LIMIT 16 /* It doesnt' matter as */
#define COFFEE_LOG_SIZE 128 /* COFFEE_MICRO_LOGS is 0. */
#if COFFEE_PAGES <= 127
#define coffee_page_t int8_t
#elif COFFEE_PAGES <= 0x7FFF
#define coffee_page_t int16_t
#endif
#define COFFEE_WRITE(buf, size, offset) \
stm32w_flash_write(COFFEE_START + offset, buf, size)
#define COFFEE_READ(buf, size, offset) \
stm32w_flash_read(COFFEE_START + offset, buf, size)
#define COFFEE_ERASE(sector) \
stm32w_flash_erase(sector)
void stm32w_flash_read(uint32_t address, void *data, uint32_t length);
void stm32w_flash_write(uint32_t address, const void *data, uint32_t length);
void stm32w_flash_erase(uint8_t sector);
int coffee_file_test(void);
#endif /* !COFFEE_ARCH_H */
/** @} */