X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Feeprom.h;h=21ae105ae6c49a3faa3ba536b30912f769a26f83;hb=7af44c59736ad212ad0f7b0269493db8d5122dc5;hp=6410d0e5b10c1f8d3b6b4c8b3dc7194ee332bc78;hpb=8e90a9cdc1bf5a30c92edcc218e9cc16327d7d21;p=bertos.git

diff --git a/drv/eeprom.h b/drv/eeprom.h
old mode 100755
new mode 100644
index 6410d0e5..21ae105a
--- a/drv/eeprom.h
+++ b/drv/eeprom.h
@@ -1,38 +1,87 @@
-/*!
+/**
  * \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 2003, 2004 Develer S.r.l. (http://www.develer.com/)
- * All Rights Reserved.
+ *
  * -->
  *
  * \version $Id$
  *
  * \author Stefano Fedrigo <aleph@develer.com>
+ * \author Bernardo Innocenti <bernie@develer.com>
  *
- * \brief I2C eeprom driver
+ * \brief Driver for the 24xx16 and 24xx256 I2C EEPROMS (interface)
  */
 
-/*
- * $Log$
- * Revision 1.1  2004/07/20 17:11:18  bernie
- * Import into DevLib.
- *
- */
 #ifndef DRV_EEPROM_H
 #define DRV_EEPROM_H
 
-#include "compiler.h"
+#include <cfg/compiler.h>
+#include <appconfig.h>
 
-//! Eeprom block size
-#define EEPROM_BLKSIZE 0x40
+/**
+ * \name Values for CONFIG_EEPROM_TYPE
+ * \{
+ */
+#define EEPROM_24XX16 1
+#define EEPROM_24XX256 2
+/*\}*/
+
+#if CONFIG_EEPROM_TYPE == EEPROM_24XX16
+	#define EEPROM_BLKSIZE   0x10 ///< Eeprom block size (16byte)
+	#define EEPROM_SIZE     0x800 ///< Eeprom total size (2kB)
+#elif CONFIG_EEPROM_TYPE == EEPROM_24XX256
+	#define EEPROM_BLKSIZE   0x40 ///< Eeprom block size (64byte)
+	#define EEPROM_SIZE    0x8000 ///< Eeprom total size (32kB)
+#else
+	#error Unsupported EEPROM type.
+#endif
 
-//! Type for eeprom addresses
+/// Type for EEPROM addresses
 typedef uint16_t e2addr_t;
 
+/**
+ * Macro for E2Layout offset calculation
+ *
+ * \note We can't just use offsetof() here because we could use
+ *       non-constant expressions to access array elements.
+ *
+ * \note 'type' is the structure type holding eeprom layout
+ *       and must be defined in user files.
+ */
+#define e2addr(type, field) ((e2addr_t)&(((type *)0)->field))
+
+
 bool eeprom_write(e2addr_t addr, const void *buf, size_t count);
 bool eeprom_read(e2addr_t addr, void *buf, size_t count);
 bool eeprom_write_char(e2addr_t addr, char c);
 int eeprom_read_char(e2addr_t addr);
+void eeprom_erase(e2addr_t addr, size_t count);
 void eeprom_init(void);
 void eeprom_test(void);