--- /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 serial Flash memory.
+ *
+ *
+ * \version $Id$
+ * \author Daniele Basile <asterix@develer.com>
+ */
+
+
+#ifndef DRV_FLASH25_H
+#define DRV_FLASH25_H
+
+#include <kern/kfile.h>
+#include <cfg/compiler.h>
+
+
+#include <appconfig.h>
+
+/**
+ * Type definition for serial flash memory.
+ */
+typedef uint32_t flash25Addr_t;
+typedef uint32_t flash25Size_t;
+typedef uint8_t flash25Offset_t;
+
+
+/**
+ * Memory definition.
+ *
+ * \note Below are defined valid serial flash memory support to
+ * this drive. Every time we call flash25_init() function we check
+ * if memory defined are right (see flash25.c form more detail).
+ * \{
+ */
+#define FLASH25_AT25F2048 1
+
+#if CONFIG_FLASH25 == FLASH25_AT25F2048
+ #define FLASH25_MANUFACTURER_ID 0x1F // ATMEL
+ #define FLASH25_DEVICE_ID 0x63 // Device ID
+ #define FLASH25_PAGE_SIZE 256 // Page size in byte
+ #define FLASH25_NUM_SECTOR 4 // Number of section in serial memory
+ #define FLASH25_SECTOR_SIZE 65536UL // Section size in byte
+ #define FLASH25_MEM_SIZE FLASH25_NUM_SECTOR * FLASH25_SECTOR_SIZE
+ #define FLASH25_NUM_PAGE FLASH25_MEM_SIZE / FLASH25_PAGE_SIZE
+#elif
+ #error Nothing memory defined in CONFIG_FLASH25 are support.
+#endif
+
+#define RDY_BIT 0x1 // Statuts of write cycle
+/* \} */
+
+/**
+ * Serial flash opcode commands.
+ */
+typedef enum {
+ FLASH25_WREN = 0x6, ///< Set write enable latch
+ FLASH25_WRDI = 0x4, ///< Reset enable write latch
+ FLASH25_RDSR = 0x5, ///< Read status register
+ FLASH25_WRSR = 0x1, ///< Write status register
+ FLASH25_READ = 0x3, ///< Read data from memory array
+ FLASH25_PROGRAM = 0x2, ///< Program data into memory array
+ FLASH25_SECTORE_ERASE = 0x52, ///< Erase one sector in memory array
+ FLASH25_CHIP_ERASE = 0x62, ///< Erase all sector in memory array
+ FLASH25_RDID = 0x15 ///< Read Manufacturer and product ID
+} Flash25Opcode;
+
+/**
+ * Serial flash sector memory address.
+ */
+#if CONFIG_FLASH25 != FLASH25_AT25F2048
+ #error Nothing memory defined in CONFIG_FLASH25 are support.
+#endif
+
+typedef enum {
+ FLASH25_SECT1 = 0x0, ///< Sector 1 (0x0 -0xFFFF)
+ FLASH25_SECT2 = 0x10000, ///< Sector 2 (0x10000 -0x1FFFF)
+ FLASH25_SECT3 = 0x20000, ///< Sector 3 (0x20000 -0x2FFFF)
+ FLASH25_SECT4 = 0x30000, ///< Sector 4 (0x30000 -0x3FFFF)
+} Flash25Sector;
+
+void flash25_init(struct KFile *fd, struct KFile *_channel);
+void flash25_chipErase(void);
+void flash25_sectorErase(Flash25Sector sector);
+bool flash25_test(KFile *channel);
+
+#endif /* DRV_FLASH25_H */
+
projects / bertos.git / blobdiff