+++ /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: dflash.h 15402 2007-04-10 09:10:56Z asterix $
- * \author Daniele Basile <asterix@develer.com>
- */
-
-
-#ifndef DATAFLASH_H
-#define DATAFLASH_H
-
-#include <kern/kfile.h>
-#include <cfg/compiler.h>
-#include <drv/spi.h>
-#include "hw_spi.h"
-
-#include <appconfig.h>
-
-/**
- * Type definition for dflash memory.
- */
-typedef uint32_t dflashAddr_t;
-typedef uint32_t dflashSize_t;
-
-#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 2,3,4,5 bits of status register, those
- * bits indicate a id of density device (see datasheet for
- * more detail).
- */
-#define GET_ID_DESITY_DEVICE(reg_stat)\
- do {\
- reg_stat &= 0x3C;\
- reg_stat >>= 2;\
- } while (0)
-
-/**
- * Pin definition.
- *
- * \note RESET and WP are asserted when logic
- * level is low.
- * \{
- */
-#define RESET PC0 ///< Connect to RESET pin of flash memory
-#define WP PC1 ///< Connect to WP pin of flash memory
-#define DFLASH_PORT PORTC ///< Micro pin PORT register.
-#define DFLASH_PIN PINC ///< Micro pin PIN register.
-#define DFLASH_DDR DDRC ///< Micro pin DDR register.
-/* \} */
-
-/**
- * Pin logic level.
- *
- * \{
- */
-#define RESET_LOW() do { DFLASH_PORT &= ~BV(RESET); } while(0)
-#define RESET_HIGH() do { DFLASH_PORT |= BV(RESET); } while(0)
-#define WP_LOW() do { DFLASH_PORT &= ~BV(WP); } while(0)
-#define WP_HIGH() do { DFLASH_PORT |= BV(WP); } while(0)
-/* \} */
-
-/**
- * Commands pin.
- *
- * \note To reset flash memory it needs a pulse
- * long about 10 usec. To do this we insert a
- * for cycle.
- *
- * \{
- */
-#define RESET_OUT() do { DFLASH_DDR |= BV(RESET); } while(0)
-#define WP_OUT() do { DFLASH_DDR |= BV(WP); } while(0)
-#define WRITE_ENABLE() WP_HIGH()
-#define WRITE_DISABLE() WP_LOW()
-#define RESET_ENABLE() RESET_LOW()
-#define RESET_DISABLE() RESET_HIGH()
-/* \} */
-
-
-/**
- * Memory definition.
- *
- * \note Below are defined valid flash memory support to
- * this drive. Every time we call dflash_init() function we check
- * if memory defined are right (see dflash.c form more detail).
- * \{
- */
-#define DFLASH_AT45DB041B 1
-#define DFLASH_AT45DB081D 2
-#define DFLASH_AT45DB161D 3
-
-#if CONFIG_DATA_FLASH == DFLASH_AT45DB161D
- #define DFLASH_ID_DEVICE_DENSITY 0xb ///< This indicate AT45DB161D data flah memory.
- #define DFLASH_PAGE_SIZE 528 ///< Number of byte in one page.
- #define DFLASH_PAGE_ADDRESS_BIT 10 ///< Number bit for addressing one page.
- #define DFLASH_NUM_PAGE 4096 ///< Number page in data flash memory.
-#elif CONFIG_DATA_FLASH == DFLASH_AT45DB081D
- #define DFLASH_ID_DEVICE_DENSITY 0x9 ///< This indicate AT45DB081D data flah memory.
- #define DFLASH_PAGE_SIZE 264 ///< Number of byte in one page.
- #define DFLASH_PAGE_ADDRESS_BIT 9 ///< Number bit for addressing one page.
- #define DFLASH_NUM_PAGE 4096 ///< Number page in data flash memory.
-#elif CONFIG_DATA_FLASH == DFLASH_AT45DB041B
- #define DFLASH_ID_DEVICE_DENSITY 0x7 ///< This indicate AT45DB041B data flah memory.
- #define DFLASH_PAGE_SIZE 264 ///< Number of byte in one page.
- #define DFLASH_PAGE_ADDRESS_BIT 9 ///< Number bit for addressing one page.
- #define DFLASH_NUM_PAGE 2048 ///< Number page in data flash memory.
-#else
- #error Nothing memory defined in CONFIG_DATA_FLASH are support.
-#endif
-/* \} */
-
-
-/**
- * Data flash opcode commands.
- */
-typedef enum {
- /**
- * Read commands data flash.
- * \{
- */
-
-#if CONFIG_DATA_FLASH == DFLASH_AT45DB081D || CONFIG_DATA_FLASH == AT45DB161D
- DFO_READ_FLASH_MEM_BYTE = 0x0B, ///< Continuos array read.
-#elif CONFIG_DATA_FLASH == DFLASH_AT45DB041B
- DFO_READ_FLASH_MEM_BYTE = 0xE8, ///< Continuos array read.
-#else
- #error No supported memory defined in CONFIG_DATA_FLASH.
-#endif
- 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 build-in erase.
- DFO_WRITE_BUFF2_TO_MEM_E = 0x86, ///< Buffer 2 to main memory page program with build-in erase.
- DFO_WRITE_BUFF1_TO_MEM = 0x88, ///< Buffer 1 to main memory page program without build-in erase.
- DFO_WRITE_BUFF2_TO_MEM = 0x89, ///< Buffer 2 to main memory page program without build-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 program through buffer 1.
- DFO_WRITE_MEM_TR_BUFF2 = 0x85, ///< Write main memory page program through buffer 2.
- /* \}*/
-
- /**
- * Additional commands data flash.
- * \{
- */
- DFO_MOV_MEM_TO_BUFF1 = 0x53, ///< Main mmemory to buffer 1 transfer.
- DFO_MOV_MEM_TO_BUFF2 = 0x55, ///< Main mmemory to buffer 2 transfer.
- DFO_CMP_MEM_TO_BUFF1 = 0x60, ///< Main mmemory to buffer 1 compare.
- DFO_CMP_MEM_TO_BUFF2 = 0x61, ///< Main mmemory to buffer 2 compare.
- 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, ///< Status register read.
- DFO_ID_DEV = 0x9F ///< Manufacturer and device ID read.
- /* \}*/
-} DFlashOpcode;
-
-void dflash_init(struct _KFile *fd)
-
-#endif /* DATAFLASH_H */
-
projects / bertos.git / blobdiff