X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Feeprom.c;h=c1c5214c83085e43d31730abd5247bd7c60495aa;hb=9789f35306bc77d4fd1dffe5f721ee45341a8268;hp=9a52e5cd7f5c625da189a43280381f3d7ade5788;hpb=26a8aa6dd6bb3be9d41da7f826f2d1925373de71;p=bertos.git

diff --git a/drv/eeprom.c b/drv/eeprom.c
old mode 100755
new mode 100644
index 9a52e5cd..c1c5214c
--- a/drv/eeprom.c
+++ b/drv/eeprom.c
@@ -1,8 +1,33 @@
-/*!
+/**
  * \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, 2005 Develer S.r.l. (http://www.develer.com/)
- * This file is part of DevLib - See README.devlib for information.
+ *
  * -->
  *
  * \brief Driver for the 24xx16 and 24xx256 I2C EEPROMS (implementation)
@@ -16,6 +41,18 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.20  2006/07/19 12:56:25  bernie
+ *#* Convert to new Doxygen style.
+ *#*
+ *#* Revision 1.19  2006/03/20 17:49:50  bernie
+ *#* Make the TWI driver more generic to work with devices other than EEPROMS.
+ *#*
+ *#* Revision 1.18  2005/11/27 23:33:40  bernie
+ *#* Use appconfig.h instead of cfg/config.h.
+ *#*
+ *#* Revision 1.17  2005/04/11 19:10:27  bernie
+ *#* Include top-level headers from cfg/ subdir.
+ *#*
  *#* Revision 1.16  2005/03/01 23:25:09  bernie
  *#* Prune CVS log.
  *#*
@@ -31,9 +68,9 @@
 
 #include "eeprom.h"
 
-#include <debug.h>
-#include <config.h>  // CONFIG_EEPROM_VERIFY
-#include <macros.h>  // MIN()
+#include <cfg/debug.h>
+#include <appconfig.h>  // CONFIG_EEPROM_VERIFY
+#include <cfg/macros.h>  // MIN()
 #include <drv/twi.h>
 #include <drv/wdt.h>
 #include <mware/byteorder.h> // cpu_to_be16()
@@ -46,8 +83,20 @@
 	#error CONFIG_EEPROM_VERIFY must be defined to either 0 or 1
 #endif
 
+/**
+ * EEPROM ID code
+ */
+#define EEPROM_ID  0xA0
+
+/**
+ * This macros form the correct slave address for EEPROMs
+ */
+#define EEPROM_ADDR(x) (EEPROM_ID | (((uint8_t)(x)) << 1))
+
+
+
 
-/*!
+/**
  * Copy \c count bytes from buffer \c buf to
  * eeprom at address \c addr.
  */
@@ -74,7 +123,7 @@ static bool eeprom_writeRaw(e2addr_t addr, const void *buf, size_t count)
 		uint8_t blk_offs = (uint8_t)addr;
 
 		result =
-			twi_start_w(blk_addr)
+			twi_start_w(EEPROM_ADDR(blk_addr))
 			&& twi_send(&blk_offs, sizeof blk_offs)
 			&& twi_send(buf, size);
 
@@ -84,7 +133,7 @@ static bool eeprom_writeRaw(e2addr_t addr, const void *buf, size_t count)
 		uint16_t addr_be = cpu_to_be16(addr);
 
 		result =
-			twi_start_w(0)
+			twi_start_w(EEPROM_ID)
 			&& twi_send((uint8_t *)&addr_be, sizeof addr_be)
 			&& twi_send(buf, size);
 
@@ -113,7 +162,7 @@ static bool eeprom_writeRaw(e2addr_t addr, const void *buf, size_t count)
 
 
 #if CONFIG_EEPROM_VERIFY
-/*!
+/**
  * Check that the contents of an EEPROM range
  * match with a provided data buffer.
  *
@@ -173,7 +222,7 @@ bool eeprom_write(e2addr_t addr, const void *buf, size_t count)
 }
 
 
-/*!
+/**
  * Copy \c count bytes at address \c addr
  * from eeprom to RAM to buffer \c buf.
  *
@@ -192,9 +241,9 @@ bool eeprom_read(e2addr_t addr, void *buf, size_t count)
 	uint8_t blk_offs = (uint8_t)addr;
 
 	bool res =
-		twi_start_w(blk_addr)
+		twi_start_w(EEPROM_ADDR(blk_addr))
 		&& twi_send(&blk_offs, sizeof blk_offs)
-		&& twi_start_r(blk_addr)
+		&& twi_start_r(EEPROM_ADDR(blk_addr))
 		&& twi_recv(buf, count);
 
 #elif CONFIG_EEPROM_TYPE == EEPROM_24XX256
@@ -203,9 +252,9 @@ bool eeprom_read(e2addr_t addr, void *buf, size_t count)
 	addr = cpu_to_be16(addr);
 
 	bool res =
-		twi_start_w(0)
+		twi_start_w(EEPROM_ID)
 		&& twi_send((uint8_t *)&addr, sizeof(addr))
-		&& twi_start_r(0)
+		&& twi_start_r(EEPROM_ID)
 		&& twi_recv(buf, count);
 #else
 	#error Unknown device type
@@ -219,7 +268,7 @@ bool eeprom_read(e2addr_t addr, void *buf, size_t count)
 }
 
 
-/*!
+/**
  * Write a single character \a c at address \a addr.
  */
 bool eeprom_write_char(e2addr_t addr, char c)
@@ -228,7 +277,7 @@ bool eeprom_write_char(e2addr_t addr, char c)
 }
 
 
-/*!
+/**
  * Read a single character at address \a addr.
  *
  * \return the requested character or -1 in case of failure.
@@ -244,7 +293,7 @@ int eeprom_read_char(e2addr_t addr)
 }
 
 
-/*!
+/**
  * Erase specified part of eeprom, writing 0xFF.
  *
  * \param addr   starting address
@@ -269,7 +318,7 @@ void eeprom_erase(e2addr_t addr, size_t count)
 }
 
 
-/*!
+/**
  * Initialize TWI module.
  */
 void eeprom_init(void)