Add flash module. Refactor the cpu implementation.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3647 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/bertos/drv/flash.h b/bertos/drv/flash.h
new file mode 100644 (file)
index 0000000..eda1e98
--- /dev/null
+++ b/bertos/drv/flash.h
@@ -0,0 +1,109 @@
+/**
+* \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 2005 Develer S.r.l. (http://www.develer.com/)
+* -->
+*
+*
+* \brief Embedded flash for cpu.
+*
+* \author Francesco Sacchi <batt@develer.com>
+* \author Daniele Basile <asterix@develer.com>
+*
+* $WIZ$ module_name = "flash"
+* $WIZ$ module_depends = "kfile"
+*/
+
+#ifndef DRV_FLASH_H
+#define DRV_FLASH_H
+
+#include <cfg/macros.h>
+#include <cfg/module.h>
+
+
+#include CPU_HEADER(flash)
+
+/**
+* EmbFlash KFile context structure.
+*/
+typedef struct Flash
+{
+       /**
+        * File descriptor.
+        */
+       KFile fd;
+
+       /**
+        * Flag for checking if current page is modified.
+        */
+       bool page_dirty;
+
+       /**
+        * Current buffered page.
+        */
+       page_t curr_page;
+
+       /**
+        * Temporary buffer cointaing data block to
+        * write on flash.
+        */
+       uint8_t page_buf[FLASH_PAGE_SIZE];
+} Flash;
+
+/**
+* ID for FLASH
+*/
+#define KFT_FLASH MAKE_ID('F', 'L', 'A', 'S')
+
+/**
+* Convert + ASSERT from generic KFile to Flash.
+*/
+INLINE Flash * FLASH_CAST(KFile *fd)
+{
+       ASSERT(fd->_type == KFT_FLASH);
+       return (Flash *)fd;
+}
+
+
+MOD_DEFINE(flash);
+
+/**
+ *
+ * Initialize PWM hw.
+ */
+INLINE void flash_init(Flash *fd)
+{
+       flash_hw_init(fd);
+
+       MOD_INIT(flash);
+}
+
+
+
+#endif /* DRV_FLASH_H */
+