+++ /dev/null
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos 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 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction. Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License. This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2007 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \brief Function library for AT45DB081D Flash memory.
- *
- *
- * \version $Id: dataflash.h 20677 2008-02-19 14:29:52Z batt $
- * \author Daniele Basile <asterix@develer.com>
- */
-
-
-#ifndef DRV_DATAFLASH_H
-#define DRV_DATAFLASH_H
-
-#include <kern/kfile.h>
-#include <cfg/compiler.h>
-
-#include <appconfig.h>
-
-
-/**
- * Type definitions for dflash memory.
- * \{
- */
-typedef uint32_t dataflash_page_t;
-typedef uint32_t dataflash_offset_t;
-typedef uint32_t dataflash_size_t;
-/*\}*/
-
-/**
- *
- */
-typedef void (dataflash_setReset_t)(bool);
-typedef void (dataflash_setCS_t)(bool);
-
-/**
- * Memory definitions.
- *
- * List of supported memory devices by this drive.
- * Every time we call dataflash_init() we check device id to
- * ensure we choose the right memory configuration.
- * (see dataflash.c for more details).
- */
-typedef enum DataflashType
-{
- DFT_AT45DB041B,
- DFT_AT45DB081D,
- DFT_AT45DB161D,
- DFT_CNT
-} DataflashType;
-
-
-/**
- * Dataflash KFile context structure.
- */
-typedef struct KFileDataflash
-{
- KFile fd; ///< File descriptor.
- KFile *channel; ///< Dataflash comm channel (usually SPI).
- DataflashType dev; ///< Memory device type;
- dataflash_page_t current_page; ///< Current loaded dataflash page.
- bool page_dirty; ///< True if current_page is dirty (needs to be flushed).
- dataflash_setReset_t *setReset; ///< Callback used to set reset pin of dataflash.
- dataflash_setCS_t *setCS; ///< Callback used to set CS pin of dataflash.
-} KFileDataflash;
-
-/**
- * ID for dataflash.
- */
-#define KFT_DATAFLASH MAKE_ID('D', 'F', 'L', 'H')
-
-/**
- * Convert + ASSERT from generic KFile to KFileDataflash.
- */
-INLINE KFileDataflash * KFILEDATAFLASH(KFile *fd)
-{
- ASSERT(fd->_type == KFT_DATAFLASH);
- return (KFileDataflash *)fd;
-}
-
-#define RESET_PULSE_WIDTH 10 ///< Width of reset pulse in usec.
-#define BUSY_BIT 0x80 ///< Select a busy bit in status register.
-#define CMP_BIT 0x40 ///< Select a compare bit in status register.
-
-/**
- * Select bits 2-5 of status register. These
- * bits indicate device density (see datasheet for
- * more details).
- */
-#define GET_ID_DESITY_DEVICE(reg_stat) (((reg_stat) & 0x3C) >> 2)
-
-/**
- * Data flash opcode commands.
- */
-typedef enum DataFlashOpcode {
- /**
- * Dataflash read commands.
- * \{
- */
- DFO_READ_FLASH_MEM_BYTE_D = 0x0B, ///< Continuos array read for D type memories.
- DFO_READ_FLASH_MEM_BYTE_B = 0xE8, ///< Continuos array read for B type memories.
-
- DFO_READ_FLASH_MEM = 0xD2, ///< Main memory page read.
- DFO_READ_BUFF1 = 0xD4, ///< SRAM buffer 1 read.
- DFO_READ_BUFF2 = 0xD6, ///< SRAM buffer 2 read.
- /* \}*/
-
- /**
- * Program and erase commands data flash.
- * \{
- */
- DFO_WRITE_BUFF1 = 0x84, ///< SRAM buffer 1 write.
- DFO_WRITE_BUFF2 = 0x87, ///< SRAM buffer 2 write.
- DFO_WRITE_BUFF1_TO_MEM_E = 0x83, ///< Buffer 1 to main memory page program with built-in erase.
- DFO_WRITE_BUFF2_TO_MEM_E = 0x86, ///< Buffer 2 to main memory page program with built-in erase.
- DFO_WRITE_BUFF1_TO_MEM = 0x88, ///< Buffer 1 to main memory page program without built-in erase.
- DFO_WRITE_BUFF2_TO_MEM = 0x89, ///< Buffer 2 to main memory page program without built-in erase.
- DFO_ERASE_PAGE = 0x81, ///< Erase page.
- DFO_ERASE_BLOCK = 0x50, ///< Erase block.
- DFO_ERASE_SECTOR = 0x7C, ///< Erase sector.
- DFO_WRITE_MEM_TR_BUFF1 = 0x82, ///< Write main memory page through buffer 1.
- DFO_WRITE_MEM_TR_BUFF2 = 0x85, ///< Write main memory page through buffer 2.
- /* \}*/
-
- /**
- * Additional dataflash commands.
- * \{
- */
- DFO_MOV_MEM_TO_BUFF1 = 0x53, ///< Transfer main mmemory to buffer 1.
- DFO_MOV_MEM_TO_BUFF2 = 0x55, ///< Transfer main mmemory to buffer 2.
- DFO_CMP_MEM_TO_BUFF1 = 0x60, ///< Compare main mmemory with buffer 1.
- DFO_CMP_MEM_TO_BUFF2 = 0x61, ///< Compare main mmemory with buffer 2.
- DFO_ARW_MEM_TR_BUFF1 = 0x58, ///< Auto page rewrite through buffer 1.
- DFO_ARW_MEM_TR_BUFF2 = 0x59, ///< Auto page rewrite through buffer 2
- DFO_PWR_DOWN = 0xB9, ///< Deep power-down.
- DFO_RESUME_PWR_DOWN = 0xAB, ///< Resume from deep power-down.
- DFO_READ_STATUS = 0xD7, ///< Read status register.
- DFO_ID_DEV = 0x9F ///< Read manufacturer and device ID.
- /* \}*/
-} DataFlashOpcode;
-
-
-/**
- * Structure used to describe a dataflash memory.
- */
-typedef struct DataflashInfo
-{
- uint8_t density_id; ///< Density id, used to check memory type.
- dataflash_size_t page_size; ///< Page size, in bytes.
- uint8_t page_bits; ///< Number of bits needed to access a page.
- uint16_t page_cnt; ///< Number of pages on memory.
- DataFlashOpcode read_cmd; ///< Command to be used to perform a continuous array.
-} DataflashInfo;
-
-
-bool dataflash_init(KFileDataflash *fd, KFile *ch, DataflashType type, dataflash_setCS_t *setCS, dataflash_setReset_t *setReset);
-
-#endif /* DRV_DATAFLASH_H */
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