shithub: lwext4

Download patch

ref: 107a9ee9b40fc55a65e84c755b5433e7ad465332
parent: fd69372547ede31874302ac2921abb7e3b34a60c
author: gkostka <kostka.grzegorz@gmail.com>
date: Mon Sep 21 18:58:46 EDT 2015

Demo apps refactoring

diff: cannot open b/blockdev/chibios//null: file does not exist: 'b/blockdev/chibios//null' diff: cannot open a/blockdev/filedev//null: file does not exist: 'a/blockdev/filedev//null' diff: cannot open a/blockdev/filedev_win//null: file does not exist: 'a/blockdev/filedev_win//null' diff: cannot open b/blockdev/linux//null: file does not exist: 'b/blockdev/linux//null' diff: cannot open b/blockdev/windows//null: file does not exist: 'b/blockdev/windows//null'
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,7 @@
 include_directories(blockdev/filedev)
 include_directories(blockdev/filedev_win)
 
+set(BLOCKDEV_TYPE  none)
 
 #Examples
 if    (CMAKE_SYSTEM_PROCESSOR STREQUAL  cortex-m0)
@@ -34,10 +35,12 @@
     #...
 else()
     #Generic example target
-    add_subdirectory(blockdev)
+    set(BLOCKDEV_TYPE  linux)
     add_subdirectory(fs_test)
     add_subdirectory(demos/generic)
 endif()
+
+add_subdirectory(blockdev)
 
 #Library build
 add_subdirectory(lwext4)
--- a/blockdev/CMakeLists.txt
+++ b/blockdev/CMakeLists.txt
@@ -1,5 +1,15 @@
 #Blockdev library
-aux_source_directory(filedev BLOCKDEV_SRC)
-aux_source_directory(filedev_win BLOCKDEV_SRC)
+
+if    (BLOCKDEV_TYPE STREQUAL  linux)
+aux_source_directory(linux BLOCKDEV_SRC)
+elseif    (BLOCKDEV_TYPE STREQUAL  windows)
+aux_source_directory(windows BLOCKDEV_SRC)
+elseif    (BLOCKDEV_TYPE STREQUAL  chibios)
+aux_source_directory(chibios BLOCKDEV_SRC)
+else()
+endif()
+
+aux_source_directory(. BLOCKDEV_SRC)
+
 add_library(blockdev  ${BLOCKDEV_SRC})
 
--- /dev/null
+++ b/blockdev/chibios/sdc_lwext4.c
@@ -1,0 +1,184 @@
+/*
+ * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "../chibios/sdc_lwext4.h"
+
+#include <config.h>
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+#include <ext4_errno.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include <hal.h>
+#include <sdc.h>
+
+
+/**@brief   Block size.*/
+#define SDC_BLOCK_SIZE 512
+
+/**@brief   MBR_block ID*/
+#define MBR_BLOCK_ID 0
+#define MBR_PART_TABLE_OFF 446
+
+struct part_tab_entry {
+	uint8_t status;
+	uint8_t chs1[3];
+	uint8_t type;
+	uint8_t chs2[3];
+	uint32_t first_lba;
+	uint32_t sectors;
+} __attribute__((packed));
+
+/**@brief   Partition block offset*/
+static uint32_t part_offset;
+
+/**@brief IO timings*/
+struct sdc_io_timings {
+	uint64_t acc_bread;
+	uint64_t acc_bwrite;
+
+	uint32_t cnt_bread;
+	uint32_t cnt_bwrite;
+
+	uint32_t av_bread;
+	uint32_t av_bwrite;
+};
+
+static struct sdc_io_timings io_timings;
+
+void io_timings_clear(void)
+{
+	memset(&io_timings, 0, sizeof(struct sdc_io_timings));
+}
+
+const struct ext4_io_stats *io_timings_get(uint32_t time_sum_ms)
+{
+	static struct ext4_io_stats s;
+
+	s.io_read = (((float)io_timings.acc_bread * 100.0) / time_sum_ms);
+	s.io_read /= 1000.0;
+
+	s.io_write = (((float)io_timings.acc_bwrite * 100.0) / time_sum_ms);
+	s.io_write /= 1000.0;
+
+	s.cpu = 100.0 - s.io_read - s.io_write;
+
+	return &s;
+}
+
+/**********************BLOCKDEV INTERFACE**************************************/
+static int sdc_open(struct ext4_blockdev *bdev);
+static int sdc_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+		     uint32_t blk_cnt);
+static int sdc_bwrite(struct ext4_blockdev *bdev, const void *buf,
+		      uint64_t blk_id, uint32_t blk_cnt);
+static int sdc_close(struct ext4_blockdev *bdev);
+
+/******************************************************************************/
+EXT4_BLOCKDEV_STATIC_INSTANCE(_sdc, SDC_BLOCK_SIZE, 0, sdc_open, sdc_bread,
+			      sdc_bwrite, sdc_close);
+
+/******************************************************************************/
+EXT4_BCACHE_STATIC_INSTANCE(_sdc_cache, CONFIG_BLOCK_DEV_CACHE_SIZE,
+			    EXT_LOGICAL_BLOCK_SIZE);
+
+/******************************************************************************/
+
+static int sdc_open(struct ext4_blockdev *bdev)
+{
+	(void)bdev;
+
+	static uint8_t mbr[512];
+	struct part_tab_entry *part0;
+
+	sdcStart(&SDCD1, NULL);
+
+	if (sdcConnect(&SDCD1) != HAL_SUCCESS)
+		return EIO;
+
+	if (sdcRead(&SDCD1, 0, mbr, 1) != HAL_SUCCESS)
+		return EIO;
+
+	part0 = (struct part_tab_entry *)(mbr + MBR_PART_TABLE_OFF);
+
+	part_offset = part0->first_lba;
+	_sdc.ph_bcnt = SDCD1.capacity * SDC_BLOCK_SIZE;
+
+	return EOK;
+}
+
+static int sdc_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+		     uint32_t blk_cnt)
+{
+	(void)bdev;
+	bool status;
+	uint64_t v = tim_get_us();
+
+	status = sdcRead(&SDCD1, blk_id, buf, blk_cnt);
+	if (status != HAL_SUCCESS)
+		return EIO;
+
+	io_timings.acc_bread += tim_get_us() - v;
+	io_timings.cnt_bread++;
+	io_timings.av_bread = io_timings.acc_bread / io_timings.cnt_bread;
+
+	return EOK;
+}
+
+static int sdc_bwrite(struct ext4_blockdev *bdev, const void *buf,
+		      uint64_t blk_id, uint32_t blk_cnt)
+{
+	(void)bdev;
+	bool status;
+	uint64_t v = tim_get_us();
+
+	status = sdcWrite(&SDCD1, blk_id, buf, blk_cnt);
+	if (status != HAL_SUCCESS)
+		return EIO;
+
+	io_timings.acc_bwrite += tim_get_us() - v;
+	io_timings.cnt_bwrite++;
+	io_timings.av_bwrite = io_timings.acc_bwrite / io_timings.cnt_bwrite;
+
+	return EOK;
+}
+
+static int sdc_close(struct ext4_blockdev *bdev)
+{
+	(void)bdev;
+	return EOK;
+}
+
+/******************************************************************************/
+
+struct ext4_bcache *sdc_cache_get(void) { return &_sdc_cache; }
+
+struct ext4_blockdev *sdc_bdev_get(void) { return &_sdc; }
--- /dev/null
+++ b/blockdev/chibios/sdc_lwext4.h
@@ -1,0 +1,45 @@
+/*
+ * Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef SDC_LWEXT4_H_
+#define SDC_LWEXT4_H_
+
+#include <config.h>
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/**@brief   SDC cache get.*/
+struct ext4_bcache *sdc_cache_get(void);
+
+/**@brief   SDC blockdev get.*/
+struct ext4_blockdev *sdc_bdev_get(void);
+
+
+#endif /* CHIBI_SDC_LWEXT4_H_ */
--- /dev/null
+++ b/blockdev/chibios/spi_lwext4.c
@@ -1,0 +1,211 @@
+/*
+ * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "../chibios/spi_lwext4.h"
+
+#include <config.h>
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+#include <ext4_errno.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include <hal.h>
+#include <mmc_spi.h>
+
+
+#if HAL_USE_MMC_SPI
+extern MMCDriver MMCD1;
+#endif
+
+/**@brief   Block size.*/
+#define SPI_BLOCK_SIZE 512
+
+/**@brief   MBR_block ID*/
+#define MBR_BLOCK_ID 0
+#define MBR_PART_TABLE_OFF 446
+
+struct part_tab_entry {
+	uint8_t status;
+	uint8_t chs1[3];
+	uint8_t type;
+	uint8_t chs2[3];
+	uint32_t first_lba;
+	uint32_t sectors;
+} __attribute__((packed));
+
+/**@brief   Partition block offset*/
+static uint32_t part_offset;
+
+/**@brief IO timings*/
+struct spi_io_timings {
+	uint64_t acc_bread;
+	uint64_t acc_bwrite;
+
+	uint32_t cnt_bread;
+	uint32_t cnt_bwrite;
+
+	uint32_t av_bread;
+	uint32_t av_bwrite;
+};
+
+static struct spi_io_timings io_timings;
+
+void io_timings_clear(void)
+{
+	memset(&io_timings, 0, sizeof(struct spi_io_timings));
+}
+
+const struct ext4_io_stats *io_timings_get(uint32_t time_sum_ms)
+{
+	static struct ext4_io_stats s;
+
+	s.io_read = (((float)io_timings.acc_bread * 100.0) / time_sum_ms);
+	s.io_read /= 1000.0;
+
+	s.io_write = (((float)io_timings.acc_bwrite * 100.0) / time_sum_ms);
+	s.io_write /= 1000.0;
+
+	s.cpu = 100.0 - s.io_read - s.io_write;
+
+	return &s;
+}
+
+/**********************BLOCKDEV INTERFACE**************************************/
+static int spi_open(struct ext4_blockdev *bdev);
+static int spi_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+		     uint32_t blk_cnt);
+static int spi_bwrite(struct ext4_blockdev *bdev, const void *buf,
+		      uint64_t blk_id, uint32_t blk_cnt);
+static int spi_close(struct ext4_blockdev *bdev);
+
+/******************************************************************************/
+EXT4_BLOCKDEV_STATIC_INSTANCE(_spi, SPI_BLOCK_SIZE, 0, spi_open, spi_bread,
+			      spi_bwrite, spi_close);
+
+/******************************************************************************/
+EXT4_BCACHE_STATIC_INSTANCE(_spi_cache, CONFIG_BLOCK_DEV_CACHE_SIZE,
+			    EXT_LOGICAL_BLOCK_SIZE);
+
+/******************************************************************************/
+
+static int spi_open(struct ext4_blockdev *bdev)
+{
+
+	(void)bdev;
+
+	static uint8_t mbr[512];
+	struct part_tab_entry *part0;
+
+	if (mmcConnect(&MMCD1) != HAL_SUCCESS)
+		return EIO;
+
+	if (mmcStartSequentialRead(&MMCD1, 0) != HAL_SUCCESS)
+		return EIO;
+
+	if (mmcSequentialRead(&MMCD1, mbr) != HAL_SUCCESS)
+		return EIO;
+
+	if (mmcStopSequentialRead(&MMCD1) != HAL_SUCCESS)
+		return EIO;
+
+	part0 = (struct part_tab_entry *)(mbr + MBR_PART_TABLE_OFF);
+
+	part_offset = part0->first_lba;
+	_spi.ph_bcnt = MMCD1.capacity * SPI_BLOCK_SIZE;
+
+	return EOK;
+}
+
+static int spi_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+		     uint32_t blk_cnt)
+{
+	(void)bdev;
+	uint64_t v = tim_get_us();
+
+	if (mmcStartSequentialRead(&MMCD1, blk_id) != HAL_SUCCESS)
+		return EIO;
+
+	while (blk_cnt) {
+		if (mmcSequentialRead(&MMCD1, buf) != HAL_SUCCESS)
+			return EIO;
+
+		buf += SPI_BLOCK_SIZE;
+		blk_cnt--;
+	}
+
+	if (mmcStopSequentialRead(&MMCD1) != HAL_SUCCESS)
+		return EIO;
+
+	io_timings.acc_bread += tim_get_us() - v;
+	io_timings.cnt_bread++;
+	io_timings.av_bread = io_timings.acc_bread / io_timings.cnt_bread;
+
+	return EOK;
+}
+
+static int spi_bwrite(struct ext4_blockdev *bdev, const void *buf,
+		      uint64_t blk_id, uint32_t blk_cnt)
+{
+	(void)bdev;
+	uint64_t v = tim_get_us();
+
+	if (mmcStartSequentialWrite(&MMCD1, blk_id) != HAL_SUCCESS)
+		return EIO;
+
+	while (blk_cnt) {
+		if (mmcSequentialWrite(&MMCD1, buf) != HAL_SUCCESS)
+			return EIO;
+
+		buf += SPI_BLOCK_SIZE;
+		blk_cnt--;
+	}
+
+	if (mmcStopSequentialWrite(&MMCD1) != HAL_SUCCESS)
+		return EIO;
+
+	io_timings.acc_bwrite += tim_get_us() - v;
+	io_timings.cnt_bwrite++;
+	io_timings.av_bwrite = io_timings.acc_bwrite / io_timings.cnt_bwrite;
+
+	return EOK;
+}
+
+static int spi_close(struct ext4_blockdev *bdev)
+{
+	(void)bdev;
+	return EOK;
+}
+
+/******************************************************************************/
+
+struct ext4_bcache *spi_cache_get(void) { return &_spi_cache; }
+
+struct ext4_blockdev *spi_bdev_get(void) { return &_spi; }
--- /dev/null
+++ b/blockdev/chibios/spi_lwext4.h
@@ -1,0 +1,24 @@
+/*
+ * spi_lwext4.h
+ *
+ *  Created on: 21 gru 2014
+ *      Author: gko
+ */
+
+#ifndef SPI_LWEXT4_H_
+#define SPI_LWEXT4_H_
+
+#include <config.h>
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/**@brief   SPI cache get.*/
+struct ext4_bcache *spi_cache_get(void);
+
+/**@brief   SPI blockdev get.*/
+struct ext4_blockdev *spi_bdev_get(void);
+
+#endif /* SPI_LWEXT4_H_ */
--- /dev/null
+++ b/blockdev/chibios/timings.c
@@ -1,0 +1,49 @@
+/*
+ * Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "../chibios/timings.h"
+
+#include <config.h>
+
+#include <ch.h>
+#include <chvt.h>
+
+
+void tim_wait_ms(uint32_t v) { chThdSleepMilliseconds(v); }
+
+uint64_t tim_get_us(void)
+{
+	uint64_t v = chVTGetSystemTimeX();
+	return ST2US(v);
+}
+
+uint32_t tim_get_ms(void)
+{
+	uint32_t v = chVTGetSystemTimeX();
+	return ST2MS(v);
+}
--- a/blockdev/filedev/ext4_filedev.c
+++ /dev/null
@@ -1,133 +1,0 @@
-/*
- * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * - The name of the author may not be used to endorse or promote products
- *   derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#define _FILE_OFFSET_BITS 64
-
-#include <ext4_config.h>
-#include <ext4_blockdev.h>
-#include <ext4_errno.h>
-#include <stdio.h>
-#include <stdbool.h>
-#include <string.h>
-#include <fcntl.h>
-
-/**@brief   Default filename.*/
-static const char *fname = "ext2";
-
-/**@brief   Image block size.*/
-#define EXT4_FILEDEV_BSIZE 512
-
-/**@brief   Image file descriptor.*/
-static FILE *dev_file;
-
-#define DROP_LINUXCACHE_BUFFERS 0
-
-/**********************BLOCKDEV INTERFACE**************************************/
-static int filedev_open(struct ext4_blockdev *bdev);
-static int filedev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
-			 uint32_t blk_cnt);
-static int filedev_bwrite(struct ext4_blockdev *bdev, const void *buf,
-			  uint64_t blk_id, uint32_t blk_cnt);
-static int filedev_close(struct ext4_blockdev *bdev);
-
-/******************************************************************************/
-EXT4_BLOCKDEV_STATIC_INSTANCE(_filedev, EXT4_FILEDEV_BSIZE, 0, filedev_open,
-			      filedev_bread, filedev_bwrite, filedev_close);
-
-/******************************************************************************/
-static int filedev_open(struct ext4_blockdev *bdev)
-{
-	dev_file = fopen(fname, "r+b");
-
-	if (!dev_file)
-		return EIO;
-
-	/*No buffering at file.*/
-	setbuf(dev_file, 0);
-
-	if (fseek(dev_file, 0, SEEK_END))
-		return EFAULT;
-
-	_filedev.ph_bcnt = ftell(dev_file) / _filedev.ph_bsize;
-
-	return EOK;
-}
-
-/******************************************************************************/
-
-static int filedev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
-			 uint32_t blk_cnt)
-{
-	if (fseek(dev_file, blk_id * bdev->ph_bsize, SEEK_SET))
-		return EIO;
-
-	if (!fread(buf, bdev->ph_bsize * blk_cnt, 1, dev_file))
-		return EIO;
-
-	return EOK;
-}
-
-static void drop_cache(void)
-{
-#if defined(__linux__) && DROP_LINUXCACHE_BUFFERS
-	int fd;
-	char *data = "3";
-
-	sync();
-	fd = open("/proc/sys/vm/drop_caches", O_WRONLY);
-	write(fd, data, sizeof(char));
-	close(fd);
-#endif
-}
-
-/******************************************************************************/
-static int filedev_bwrite(struct ext4_blockdev *bdev, const void *buf,
-			  uint64_t blk_id, uint32_t blk_cnt)
-{
-	if (fseek(dev_file, blk_id * bdev->ph_bsize, SEEK_SET))
-		return EIO;
-
-	if (!fwrite(buf, bdev->ph_bsize * blk_cnt, 1, dev_file))
-		return EIO;
-
-	drop_cache();
-	return EOK;
-}
-/******************************************************************************/
-static int filedev_close(struct ext4_blockdev *bdev)
-{
-	fclose(dev_file);
-	return EOK;
-}
-
-/******************************************************************************/
-struct ext4_blockdev *ext4_filedev_get(void) { return &_filedev; }
-/******************************************************************************/
-void ext4_filedev_filename(const char *n) { fname = n; }
-
-/******************************************************************************/
--- a/blockdev/filedev/ext4_filedev.h
+++ /dev/null
@@ -1,43 +1,0 @@
-/*
- * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * - The name of the author may not be used to endorse or promote products
- *   derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef EXT4_FILEDEV_H_
-#define EXT4_FILEDEV_H_
-
-#include <ext4_config.h>
-#include <ext4_blockdev.h>
-
-#include <stdint.h>
-#include <stdbool.h>
-
-/**@brief   File blockdev get.*/
-struct ext4_blockdev *ext4_filedev_get(void);
-
-/**@brief   Set filename to open.*/
-void ext4_filedev_filename(const char *n);
-
-#endif /* EXT4_FILEDEV_H_ */
--- a/blockdev/filedev_win/io_raw.c
+++ /dev/null
@@ -1,161 +1,0 @@
-/*
- * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * - The name of the author may not be used to endorse or promote products
- *   derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <ext4_config.h>
-#include <ext4_blockdev.h>
-#include <ext4_errno.h>
-#include <stdio.h>
-#include <stdbool.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <windows.h>
-#include <winioctl.h>
-
-/**@brief   Default filename.*/
-static const char *fname = "ext2";
-
-/**@brief   IO block size.*/
-#define EXT4_IORAW_BSIZE 512
-
-/**@brief   Image file descriptor.*/
-static HANDLE dev_file;
-
-/**********************BLOCKDEV INTERFACE**************************************/
-static int io_raw_open(struct ext4_blockdev *bdev);
-static int io_raw_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
-			uint32_t blk_cnt);
-static int io_raw_bwrite(struct ext4_blockdev *bdev, const void *buf,
-			 uint64_t blk_id, uint32_t blk_cnt);
-static int io_raw_close(struct ext4_blockdev *bdev);
-
-/******************************************************************************/
-EXT4_BLOCKDEV_STATIC_INSTANCE(_filedev, EXT4_IORAW_BSIZE, 0, io_raw_open,
-			      io_raw_bread, io_raw_bwrite, io_raw_close);
-
-/******************************************************************************/
-static int io_raw_open(struct ext4_blockdev *bdev)
-{
-	char path[64];
-	DISK_GEOMETRY pdg;
-	uint64_t disk_size;
-	BOOL bResult = FALSE;
-	DWORD junk;
-
-	sprintf(path, "\\\\.\\%s", fname);
-
-	dev_file =
-	    CreateFile(path, GENERIC_READ | GENERIC_WRITE,
-		       FILE_SHARE_WRITE | FILE_SHARE_READ, NULL, OPEN_EXISTING,
-		       FILE_FLAG_NO_BUFFERING | FILE_FLAG_WRITE_THROUGH, NULL);
-
-	if (dev_file == INVALID_HANDLE_VALUE) {
-		return EIO;
-	}
-
-	bResult =
-	    DeviceIoControl(dev_file, IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0,
-			    &pdg, sizeof(pdg), &junk, (LPOVERLAPPED)NULL);
-
-	if (bResult == FALSE) {
-		CloseHandle(dev_file);
-		return EIO;
-	}
-
-	disk_size = pdg.Cylinders.QuadPart * (ULONG)pdg.TracksPerCylinder *
-		    (ULONG)pdg.SectorsPerTrack * (ULONG)pdg.BytesPerSector;
-
-	_filedev.ph_bsize = pdg.BytesPerSector;
-	_filedev.ph_bcnt = disk_size / pdg.BytesPerSector;
-
-	return EOK;
-}
-
-/******************************************************************************/
-
-static int io_raw_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
-			uint32_t blk_cnt)
-{
-	long hipart = blk_id >> (32 - 9);
-	long lopart = blk_id << 9;
-	long err;
-
-	SetLastError(0);
-	lopart = SetFilePointer(dev_file, lopart, &hipart, FILE_BEGIN);
-
-	if (lopart == -1 && NO_ERROR != (err = GetLastError())) {
-		return EIO;
-	}
-
-	DWORD n;
-
-	if (!ReadFile(dev_file, buf, blk_cnt * 512, &n, NULL)) {
-		err = GetLastError();
-		return EIO;
-	}
-	return EOK;
-}
-
-/******************************************************************************/
-static int io_raw_bwrite(struct ext4_blockdev *bdev, const void *buf,
-			 uint64_t blk_id, uint32_t blk_cnt)
-{
-	long hipart = blk_id >> (32 - 9);
-	long lopart = blk_id << 9;
-	long err;
-
-	SetLastError(0);
-	lopart = SetFilePointer(dev_file, lopart, &hipart, FILE_BEGIN);
-
-	if (lopart == -1 && NO_ERROR != (err = GetLastError())) {
-		return EIO;
-	}
-
-	DWORD n;
-
-	if (!WriteFile(dev_file, buf, blk_cnt * 512, &n, NULL)) {
-		err = GetLastError();
-		return EIO;
-	}
-	return EOK;
-}
-
-/******************************************************************************/
-static int io_raw_close(struct ext4_blockdev *bdev)
-{
-	CloseHandle(dev_file);
-	return EOK;
-}
-
-/******************************************************************************/
-struct ext4_blockdev *ext4_io_raw_dev_get(void) { return &_filedev; }
-/******************************************************************************/
-void ext4_io_raw_filename(const char *n) { fname = n; }
-
-/******************************************************************************/
-#endif
--- a/blockdev/filedev_win/io_raw.h
+++ /dev/null
@@ -1,43 +1,0 @@
-/*
- * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * - The name of the author may not be used to endorse or promote products
- *   derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef IO_RAW_H_
-#define IO_RAW_H_
-
-#include <ext4_config.h>
-#include <ext4_blockdev.h>
-
-#include <stdint.h>
-#include <stdbool.h>
-
-/**@brief   IO raw blockdev get.*/
-struct ext4_blockdev *ext4_io_raw_dev_get(void);
-
-/**@brief   Set filrname to open.*/
-void ext4_io_raw_filename(const char *n);
-
-#endif /* IO_RAW_H_ */
--- /dev/null
+++ b/blockdev/linux/ext4_filedev.c
@@ -1,0 +1,133 @@
+/*
+ * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define _FILE_OFFSET_BITS 64
+
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+#include <ext4_errno.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <fcntl.h>
+
+/**@brief   Default filename.*/
+static const char *fname = "ext2";
+
+/**@brief   Image block size.*/
+#define EXT4_FILEDEV_BSIZE 512
+
+/**@brief   Image file descriptor.*/
+static FILE *dev_file;
+
+#define DROP_LINUXCACHE_BUFFERS 0
+
+/**********************BLOCKDEV INTERFACE**************************************/
+static int filedev_open(struct ext4_blockdev *bdev);
+static int filedev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+			 uint32_t blk_cnt);
+static int filedev_bwrite(struct ext4_blockdev *bdev, const void *buf,
+			  uint64_t blk_id, uint32_t blk_cnt);
+static int filedev_close(struct ext4_blockdev *bdev);
+
+/******************************************************************************/
+EXT4_BLOCKDEV_STATIC_INSTANCE(_filedev, EXT4_FILEDEV_BSIZE, 0, filedev_open,
+			      filedev_bread, filedev_bwrite, filedev_close);
+
+/******************************************************************************/
+static int filedev_open(struct ext4_blockdev *bdev)
+{
+	dev_file = fopen(fname, "r+b");
+
+	if (!dev_file)
+		return EIO;
+
+	/*No buffering at file.*/
+	setbuf(dev_file, 0);
+
+	if (fseek(dev_file, 0, SEEK_END))
+		return EFAULT;
+
+	_filedev.ph_bcnt = ftell(dev_file) / _filedev.ph_bsize;
+
+	return EOK;
+}
+
+/******************************************************************************/
+
+static int filedev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+			 uint32_t blk_cnt)
+{
+	if (fseek(dev_file, blk_id * bdev->ph_bsize, SEEK_SET))
+		return EIO;
+
+	if (!fread(buf, bdev->ph_bsize * blk_cnt, 1, dev_file))
+		return EIO;
+
+	return EOK;
+}
+
+static void drop_cache(void)
+{
+#if defined(__linux__) && DROP_LINUXCACHE_BUFFERS
+	int fd;
+	char *data = "3";
+
+	sync();
+	fd = open("/proc/sys/vm/drop_caches", O_WRONLY);
+	write(fd, data, sizeof(char));
+	close(fd);
+#endif
+}
+
+/******************************************************************************/
+static int filedev_bwrite(struct ext4_blockdev *bdev, const void *buf,
+			  uint64_t blk_id, uint32_t blk_cnt)
+{
+	if (fseek(dev_file, blk_id * bdev->ph_bsize, SEEK_SET))
+		return EIO;
+
+	if (!fwrite(buf, bdev->ph_bsize * blk_cnt, 1, dev_file))
+		return EIO;
+
+	drop_cache();
+	return EOK;
+}
+/******************************************************************************/
+static int filedev_close(struct ext4_blockdev *bdev)
+{
+	fclose(dev_file);
+	return EOK;
+}
+
+/******************************************************************************/
+struct ext4_blockdev *ext4_filedev_get(void) { return &_filedev; }
+/******************************************************************************/
+void ext4_filedev_filename(const char *n) { fname = n; }
+
+/******************************************************************************/
--- /dev/null
+++ b/blockdev/linux/ext4_filedev.h
@@ -1,0 +1,43 @@
+/*
+ * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef EXT4_FILEDEV_H_
+#define EXT4_FILEDEV_H_
+
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/**@brief   File blockdev get.*/
+struct ext4_blockdev *ext4_filedev_get(void);
+
+/**@brief   Set filename to open.*/
+void ext4_filedev_filename(const char *n);
+
+#endif /* EXT4_FILEDEV_H_ */
--- /dev/null
+++ b/blockdev/test_lwext4.c
@@ -1,0 +1,375 @@
+/*
+ * Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <ext4.h>
+
+#include <stdio.h>
+#include <time.h>
+#include <inttypes.h>
+#include <string.h>
+
+#include "test_lwext4.h"
+
+/**@brief   Read-write size*/
+#define READ_MAX_WRITE_SZIZE 1024 * 8
+
+/**@brief   File read/write buffer*/
+static uint8_t rw_buff[READ_MAX_WRITE_SZIZE];
+
+/**@brief   Block device handle.*/
+static struct ext4_blockdev *bd;
+
+/**@brief   Block cache handle.*/
+static struct ext4_bcache *bc;
+
+static char *entry_to_str(uint8_t type)
+{
+	switch (type) {
+	case EXT4_DIRENTRY_UNKNOWN:
+		return "[unk] ";
+	case EXT4_DIRENTRY_REG_FILE:
+		return "[fil] ";
+	case EXT4_DIRENTRY_DIR:
+		return "[dir] ";
+	case EXT4_DIRENTRY_CHRDEV:
+		return "[cha] ";
+	case EXT4_DIRENTRY_BLKDEV:
+		return "[blk] ";
+	case EXT4_DIRENTRY_FIFO:
+		return "[fif] ";
+	case EXT4_DIRENTRY_SOCK:
+		return "[soc] ";
+	case EXT4_DIRENTRY_SYMLINK:
+		return "[sym] ";
+	default:
+		break;
+	}
+	return "[???]";
+}
+
+static clock_t get_ms(void) { return tim_get_ms(); }
+
+static void printf_io_timings(clock_t diff)
+{
+	const struct ext4_io_stats *stats = io_timings_get(diff);
+	printf("io_timings:\n");
+	printf("  io_read: %.3f%%\n", stats->io_read);
+	printf("  io_write: %.3f%%\n", stats->io_write);
+	printf("  io_cpu: %.3f%%\n", stats->cpu);
+}
+
+void test_lwext4_dir_ls(const char *path)
+{
+	char sss[255];
+	ext4_dir d;
+	const ext4_direntry *de;
+
+	printf("ls %s\n", path);
+
+	ext4_dir_open(&d, path);
+	de = ext4_dir_entry_next(&d);
+
+	while (de) {
+		memcpy(sss, de->name, de->name_length);
+		sss[de->name_length] = 0;
+		printf("  %s%s\n", entry_to_str(de->inode_type), sss);
+		de = ext4_dir_entry_next(&d);
+	}
+	ext4_dir_close(&d);
+}
+
+void test_lwext4_mp_stats(void)
+{
+	struct ext4_mount_stats stats;
+	ext4_mount_point_stats("/mp/", &stats);
+
+	printf("********************\n");
+	printf("ext4_mount_point_stats\n");
+	printf("inodes_count = %" PRIu32 "\n", stats.inodes_count);
+	printf("free_inodes_count = %" PRIu32 "\n", stats.free_inodes_count);
+	printf("blocks_count = %" PRIu32 "\n", (uint32_t)stats.blocks_count);
+	printf("free_blocks_count = %" PRIu32 "\n",
+	       (uint32_t)stats.free_blocks_count);
+	printf("block_size = %" PRIu32 "\n", stats.block_size);
+	printf("block_group_count = %" PRIu32 "\n", stats.block_group_count);
+	printf("blocks_per_group= %" PRIu32 "\n", stats.blocks_per_group);
+	printf("inodes_per_group = %" PRIu32 "\n", stats.inodes_per_group);
+	printf("volume_name = %s\n", stats.volume_name);
+	printf("********************\n");
+}
+
+void test_lwext4_block_stats(void)
+{
+	if (!bd)
+		return;
+
+	printf("********************\n");
+	printf("ext4 blockdev stats\n");
+	printf("bdev->bread_ctr = %" PRIu32 "\n", bd->bread_ctr);
+	printf("bdev->bwrite_ctr = %" PRIu32 "\n", bd->bwrite_ctr);
+
+	printf("bcache->ref_blocks = %" PRIu32 "\n", bc->ref_blocks);
+	printf("bcache->max_ref_blocks = %" PRIu32 "\n", bc->max_ref_blocks);
+	printf("bcache->lru_ctr = %" PRIu32 "\n", bc->lru_ctr);
+
+	printf("\n");
+
+	uint32_t i;
+	for (i = 0; i < bc->cnt; ++i) {
+		printf("bcache->refctr[%" PRIu32 "]= %" PRIu32 "\n", i,
+		       bc->refctr[i]);
+	}
+
+	printf("\n");
+	for (i = 0; i < bc->cnt; ++i) {
+		printf("bcache->lru_id[%" PRIu32 "] = %" PRIu32 "\n", i,
+		       bc->lru_id[i]);
+	}
+
+	printf("\n");
+	for (i = 0; i < bc->cnt; ++i) {
+		printf("bcache->free_delay[%" PRIu32 "] = %d\n", i,
+		       bc->free_delay[i]);
+	}
+
+	printf("\n");
+	for (i = 0; i < bc->cnt; ++i) {
+		printf("bcache->lba[%" PRIu32 "] = %" PRIu32 "\n", i,
+		       (uint32_t)bc->lba[i]);
+	}
+
+	printf("********************\n");
+}
+
+bool test_lwext4_dir_test(int len)
+{
+	ext4_file f;
+	int r;
+	int i;
+	char path[64];
+	clock_t diff;
+	clock_t stop;
+	clock_t start;
+
+	printf("test_lwext4_dir_test: %d\n", len);
+	io_timings_clear();
+	start = get_ms();
+
+	printf("directory create: /mp/dir1\n");
+	r = ext4_dir_mk("/mp/dir1");
+	if (r != EOK) {
+		printf("ext4_dir_mk: rc = %d\n", r);
+		return false;
+	}
+
+	printf("add files to: /mp/dir1\n");
+	for (i = 0; i < len; ++i) {
+		sprintf(path, "/mp/dir1/f%d", i);
+		r = ext4_fopen(&f, path, "wb");
+		if (r != EOK) {
+			printf("ext4_fopen: rc = %d\n", r);
+			return false;
+		}
+	}
+
+	stop = get_ms();
+	diff = stop - start;
+	test_lwext4_dir_ls("/mp/dir1");
+	printf("test_lwext4_dir_test: time: %d ms\n", (int)diff);
+	printf("test_lwext4_dir_test: av: %d ms/entry\n", (int)diff / len);
+	printf_io_timings(diff);
+	return true;
+}
+
+static int verify_buf(const unsigned char *b, size_t len, unsigned char c)
+{
+	size_t i;
+	for (i = 0; i < len; ++i) {
+		if (b[i] != c)
+			return c - b[i];
+	}
+
+	return 0;
+}
+
+bool test_lwext4_file_test(uint32_t rw_szie, uint32_t rw_count)
+{
+	int r;
+	size_t size;
+	uint32_t i;
+	clock_t start;
+	clock_t stop;
+	clock_t diff;
+	uint32_t kbps;
+	uint64_t size_bytes;
+
+	ext4_file f;
+
+	printf("file_test:\n");
+	printf("  rw size: %" PRIu32 "\n", rw_szie);
+	printf("  rw count: %" PRIu32 "\n", rw_count);
+
+	/*Add hello world file.*/
+	r = ext4_fopen(&f, "/mp/hello.txt", "wb");
+	r = ext4_fwrite(&f, "Hello World !\n", strlen("Hello World !\n"), 0);
+	r = ext4_fclose(&f);
+
+	io_timings_clear();
+	start = get_ms();
+	r = ext4_fopen(&f, "/mp/test1", "wb");
+	if (r != EOK) {
+		printf("ext4_fopen ERROR = %d\n", r);
+		return false;
+	}
+
+	printf("ext4_write: %" PRIu32 " * %" PRIu32 " ...\n", rw_szie,
+	       rw_count);
+	for (i = 0; i < rw_count; ++i) {
+
+		memset(rw_buff, i % 10 + '0', rw_szie);
+
+		r = ext4_fwrite(&f, rw_buff, rw_szie, &size);
+
+		if ((r != EOK) || (size != rw_szie))
+			break;
+	}
+
+	if (i != rw_count) {
+		printf("  file_test: rw_count = %" PRIu32 "\n", i);
+		return false;
+	}
+
+	stop = get_ms();
+	diff = stop - start;
+	size_bytes = rw_szie * rw_count;
+	size_bytes = (size_bytes * 1000) / 1024;
+	kbps = (size_bytes) / (diff + 1);
+	printf("  write time: %d ms\n", (int)diff);
+	printf("  write speed: %" PRIu32 " KB/s\n", kbps);
+	printf_io_timings(diff);
+	r = ext4_fclose(&f);
+
+	io_timings_clear();
+	start = get_ms();
+	r = ext4_fopen(&f, "/mp/test1", "r+");
+	if (r != EOK) {
+		printf("ext4_fopen ERROR = %d\n", r);
+		return false;
+	}
+
+	printf("ext4_read: %" PRIu32 " * %" PRIu32 " ...\n", rw_szie, rw_count);
+
+	for (i = 0; i < rw_count; ++i) {
+		r = ext4_fread(&f, rw_buff, rw_szie, &size);
+
+		if ((r != EOK) || (size != rw_szie))
+			break;
+
+		if (verify_buf(rw_buff, rw_szie, i % 10 + '0'))
+			break;
+	}
+
+	if (i != rw_count) {
+		printf("  file_test: rw_count = %" PRIu32 "\n", i);
+		return false;
+	}
+
+	stop = get_ms();
+	diff = stop - start;
+	size_bytes = rw_szie * rw_count;
+	size_bytes = (size_bytes * 1000) / 1024;
+	kbps = (size_bytes) / (diff + 1);
+	printf("  read time: %d ms\n", (int)diff);
+	printf("  read speed: %d KB/s\n", (int)kbps);
+	printf_io_timings(diff);
+
+	r = ext4_fclose(&f);
+	return true;
+}
+void test_lwext4_cleanup(void)
+{
+	clock_t start;
+	clock_t stop;
+	clock_t diff;
+
+	printf("\ncleanup:\n");
+	ext4_fremove("/mp/hello.txt");
+
+	printf("remove /mp/test1\n");
+	ext4_fremove("/mp/test1");
+
+	printf("remove /mp/dir1\n");
+	io_timings_clear();
+	start = get_ms();
+	ext4_dir_rm("/mp/dir1");
+	stop = get_ms();
+	diff = stop - start;
+	printf("cleanup: time: %d ms\n", (int)diff);
+	printf_io_timings(diff);
+}
+
+bool test_lwext4_mount(struct ext4_blockdev *bdev, struct ext4_bcache *bcache)
+{
+	int r;
+
+	bc = bcache;
+	bd = bdev;
+
+	if (!bd) {
+		printf("test_lwext4_mount: no block device\n");
+		return false;
+	}
+
+	ext4_dmask_set(EXT4_DEBUG_ALL);
+
+	r = ext4_device_register(bd, bc ? bc : 0, "ext4_fs");
+	if (r != EOK) {
+		printf("ext4_device_register: rc = %d\n", r);
+		return false;
+	}
+
+	r = ext4_mount("ext4_fs", "/mp/");
+	if (r != EOK) {
+		printf("ext4_mount: rc = %d\n", r);
+		return false;
+	}
+
+	ext4_cache_write_back("/mp/", 1);
+	return true;
+}
+
+bool test_lwext4_umount(void)
+{
+	ext4_cache_write_back("/mp/", 0);
+	int r = ext4_umount("/mp/");
+	if (r != EOK) {
+		printf("ext4_umount: fail %d", r);
+		return false;
+	}
+	return true;
+}
--- /dev/null
+++ b/blockdev/test_lwext4.h
@@ -1,0 +1,59 @@
+/*
+ * Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TEST_LWEXT4_H_
+#define TEST_LWEXT4_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+
+void test_lwext4_dir_ls(const char *path);
+void test_lwext4_mp_stats(void);
+void test_lwext4_block_stats(void);
+bool test_lwext4_dir_test(int len);
+bool test_lwext4_file_test(uint32_t rw_szie, uint32_t rw_count);
+void test_lwext4_cleanup(void);
+
+bool test_lwext4_mount(struct ext4_blockdev *bdev, struct ext4_bcache *bcache);
+bool test_lwext4_umount(void);
+
+void tim_wait_ms(uint32_t v);
+
+uint32_t tim_get_ms(void);
+uint64_t tim_get_us(void);
+
+struct ext4_io_stats {
+	float io_read;
+	float io_write;
+	float cpu;
+};
+
+void io_timings_clear(void);
+const struct ext4_io_stats *io_timings_get(uint32_t time_sum_ms);
+
+#endif /* TEST_LWEXT4_H_ */
--- /dev/null
+++ b/blockdev/windows/io_raw.c
@@ -1,0 +1,161 @@
+/*
+ * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+#include <ext4_errno.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+
+#ifdef WIN32
+#include <windows.h>
+#include <winioctl.h>
+
+/**@brief   Default filename.*/
+static const char *fname = "ext2";
+
+/**@brief   IO block size.*/
+#define EXT4_IORAW_BSIZE 512
+
+/**@brief   Image file descriptor.*/
+static HANDLE dev_file;
+
+/**********************BLOCKDEV INTERFACE**************************************/
+static int io_raw_open(struct ext4_blockdev *bdev);
+static int io_raw_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+			uint32_t blk_cnt);
+static int io_raw_bwrite(struct ext4_blockdev *bdev, const void *buf,
+			 uint64_t blk_id, uint32_t blk_cnt);
+static int io_raw_close(struct ext4_blockdev *bdev);
+
+/******************************************************************************/
+EXT4_BLOCKDEV_STATIC_INSTANCE(_filedev, EXT4_IORAW_BSIZE, 0, io_raw_open,
+			      io_raw_bread, io_raw_bwrite, io_raw_close);
+
+/******************************************************************************/
+static int io_raw_open(struct ext4_blockdev *bdev)
+{
+	char path[64];
+	DISK_GEOMETRY pdg;
+	uint64_t disk_size;
+	BOOL bResult = FALSE;
+	DWORD junk;
+
+	sprintf(path, "\\\\.\\%s", fname);
+
+	dev_file =
+	    CreateFile(path, GENERIC_READ | GENERIC_WRITE,
+		       FILE_SHARE_WRITE | FILE_SHARE_READ, NULL, OPEN_EXISTING,
+		       FILE_FLAG_NO_BUFFERING | FILE_FLAG_WRITE_THROUGH, NULL);
+
+	if (dev_file == INVALID_HANDLE_VALUE) {
+		return EIO;
+	}
+
+	bResult =
+	    DeviceIoControl(dev_file, IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0,
+			    &pdg, sizeof(pdg), &junk, (LPOVERLAPPED)NULL);
+
+	if (bResult == FALSE) {
+		CloseHandle(dev_file);
+		return EIO;
+	}
+
+	disk_size = pdg.Cylinders.QuadPart * (ULONG)pdg.TracksPerCylinder *
+		    (ULONG)pdg.SectorsPerTrack * (ULONG)pdg.BytesPerSector;
+
+	_filedev.ph_bsize = pdg.BytesPerSector;
+	_filedev.ph_bcnt = disk_size / pdg.BytesPerSector;
+
+	return EOK;
+}
+
+/******************************************************************************/
+
+static int io_raw_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
+			uint32_t blk_cnt)
+{
+	long hipart = blk_id >> (32 - 9);
+	long lopart = blk_id << 9;
+	long err;
+
+	SetLastError(0);
+	lopart = SetFilePointer(dev_file, lopart, &hipart, FILE_BEGIN);
+
+	if (lopart == -1 && NO_ERROR != (err = GetLastError())) {
+		return EIO;
+	}
+
+	DWORD n;
+
+	if (!ReadFile(dev_file, buf, blk_cnt * 512, &n, NULL)) {
+		err = GetLastError();
+		return EIO;
+	}
+	return EOK;
+}
+
+/******************************************************************************/
+static int io_raw_bwrite(struct ext4_blockdev *bdev, const void *buf,
+			 uint64_t blk_id, uint32_t blk_cnt)
+{
+	long hipart = blk_id >> (32 - 9);
+	long lopart = blk_id << 9;
+	long err;
+
+	SetLastError(0);
+	lopart = SetFilePointer(dev_file, lopart, &hipart, FILE_BEGIN);
+
+	if (lopart == -1 && NO_ERROR != (err = GetLastError())) {
+		return EIO;
+	}
+
+	DWORD n;
+
+	if (!WriteFile(dev_file, buf, blk_cnt * 512, &n, NULL)) {
+		err = GetLastError();
+		return EIO;
+	}
+	return EOK;
+}
+
+/******************************************************************************/
+static int io_raw_close(struct ext4_blockdev *bdev)
+{
+	CloseHandle(dev_file);
+	return EOK;
+}
+
+/******************************************************************************/
+struct ext4_blockdev *ext4_io_raw_dev_get(void) { return &_filedev; }
+/******************************************************************************/
+void ext4_io_raw_filename(const char *n) { fname = n; }
+
+/******************************************************************************/
+#endif
--- /dev/null
+++ b/blockdev/windows/io_raw.h
@@ -1,0 +1,44 @@
+/*
+ * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef IO_RAW_H_
+#define IO_RAW_H_
+
+#include <ext4_config.h>
+#include <ext4_blockdev.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/**@brief   IO raw blockdev get.*/
+struct ext4_blockdev *ext4_io_raw_dev_get(void);
+
+/**@brief   Set filrname to open.*/
+void ext4_io_raw_filename(const char *n);
+
+
+#endif /* IO_RAW_H_ */
--- a/demos/generic/CMakeLists.txt
+++ b/demos/generic/CMakeLists.txt
@@ -1,4 +1,4 @@
-#Generic demo
-add_executable(generic main.c)
-target_link_libraries(generic lwext4)
-target_link_libraries(generic blockdev)
\ No newline at end of file
+#Generic demo
+add_executable(generic generic.c)
+target_link_libraries(generic blockdev)
+target_link_libraries(generic lwext4)
--- /dev/null
+++ b/demos/generic/generic.c
@@ -1,0 +1,269 @@
+/*
+ * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+#include <ext4.h>
+#include "../../blockdev/linux/ext4_filedev.h"
+#include "../../blockdev/windows/io_raw.h"
+#include "../../blockdev/test_lwext4.h"
+
+#ifdef WIN32
+#include <windows.h>
+#endif
+
+/**@brief   Input stream name.*/
+char input_name[128] = "ext2";
+
+/**@brief   Read-write size*/
+static int rw_szie = 1024 * 1024;
+
+/**@brief   Read-write size*/
+static int rw_count = 10;
+
+/**@brief   Directory test count*/
+static int dir_cnt = 0;
+
+/**@brief   Static or dynamic cache mode*/
+static bool cache_mode = true;
+
+/**@brief   Cleanup after test.*/
+static bool cleanup_flag = false;
+
+/**@brief   Block device stats.*/
+static bool bstat = false;
+
+/**@brief   Superblock stats.*/
+static bool sbstat = false;
+
+/**@brief   Indicates that input is windows partition.*/
+static bool winpart = false;
+
+/**@brief   File write buffer*/
+static uint8_t *wr_buff;
+
+/**@brief   File read buffer.*/
+static uint8_t *rd_buff;
+
+/**@brief   Block device handle.*/
+static struct ext4_blockdev *bd;
+
+/**@brief   Static cache instance*/
+EXT4_BCACHE_STATIC_INSTANCE(_lwext4_cache, CONFIG_BLOCK_DEV_CACHE_SIZE, 1024);
+
+/**@brief   Block cache handle.*/
+static struct ext4_bcache *bc = &_lwext4_cache;
+
+static const char *usage = "                                    \n\
+Welcome in ext4 generic demo.                                   \n\
+Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)  \n\
+Usage:                                                          \n\
+    --i   - input file              (default = ext2)            \n\
+    --rws - single R/W size         (default = 1024 * 1024)     \n\
+    --rwc - R/W count               (default = 10)              \n\
+    --cache  - 0 static, 1 dynamic  (default = 1)               \n\
+    --dirs   - directory test count (default = 0)               \n\
+    --clean  - clean up after test                              \n\
+    --bstat  - block device stats                               \n\
+    --sbstat - superblock stats                                 \n\
+    --wpart  - windows partition mode                           \n\
+\n";
+
+void io_timings_clear(void)
+{
+}
+
+const struct ext4_io_stats *io_timings_get(uint32_t time_sum_ms)
+{
+	static struct ext4_io_stats s;
+	return &s;
+}
+
+uint32_t tim_get_ms(void)
+{
+	struct timeval t;
+	gettimeofday(&t, NULL);
+	return (t.tv_sec * 1000) + (t.tv_usec / 1000);
+}
+
+uint64_t tim_get_us(void)
+{
+	struct timeval t;
+	gettimeofday(&t, NULL);
+	return (t.tv_sec * 1000000) + (t.tv_usec);
+}
+
+static bool open_linux(void)
+{
+	ext4_filedev_filename(input_name);
+	bd = ext4_filedev_get();
+	if (!bd) {
+		printf("open_filedev: fail\n");
+		return false;
+	}
+	return true;
+}
+
+static bool open_windows(void)
+{
+#ifdef WIN32
+	ext4_io_raw_filename(input_name);
+	bd = ext4_io_raw_dev_get();
+	if (!bd) {
+		printf("open_winpartition: fail\n");
+		return false;
+	}
+	return true;
+#else
+	printf("open_winpartition: this mode should be used only under windows "
+	       "!\n");
+	return false;
+#endif
+}
+
+
+static bool parse_opt(int argc, char **argv)
+{
+	int option_index = 0;
+	int c;
+
+	static struct option long_options[] = {
+	    {"in", required_argument, 0, 'a'},
+	    {"rws", required_argument, 0, 'b'},
+	    {"rwc", required_argument, 0, 'c'},
+	    {"cache", required_argument, 0, 'd'},
+	    {"dirs", required_argument, 0, 'e'},
+	    {"clean", no_argument, 0, 'f'},
+	    {"bstat", no_argument, 0, 'g'},
+	    {"sbstat", no_argument, 0, 'h'},
+	    {"wpart", no_argument, 0, 'i'},
+	    {0, 0, 0, 0}};
+
+	while (-1 != (c = getopt_long(argc, argv, "a:b:c:d:e:fghi",
+				      long_options, &option_index))) {
+
+		switch (c) {
+		case 'a':
+			strcpy(input_name, optarg);
+			break;
+		case 'b':
+			rw_szie = atoi(optarg);
+			break;
+		case 'c':
+			rw_count = atoi(optarg);
+			break;
+		case 'd':
+			cache_mode = atoi(optarg);
+			break;
+		case 'e':
+			dir_cnt = atoi(optarg);
+			break;
+		case 'f':
+			cleanup_flag = true;
+			break;
+		case 'g':
+			bstat = true;
+			break;
+		case 'h':
+			sbstat = true;
+			break;
+		case 'i':
+			winpart = true;
+			break;
+		default:
+			printf("%s", usage);
+			return false;
+		}
+	}
+	return true;
+}
+
+int main(int argc, char **argv)
+{
+	if (!parse_opt(argc, argv))
+		return EXIT_FAILURE;
+
+	printf("test conditions:\n");
+	printf("\timput name: %s\n", input_name);
+	printf("\trw size: %d\n", rw_szie);
+	printf("\trw count: %d\n", rw_count);
+	printf("\tcache mode: %s\n", cache_mode ? "dynamic" : "static");
+
+	if (winpart) {
+		if (!open_windows())
+			return EXIT_FAILURE;
+	} else {
+		if (!open_linux())
+			return EXIT_FAILURE;
+	}
+
+
+	if (!test_lwext4_mount(bd, bc))
+		return EXIT_FAILURE;
+
+	test_lwext4_cleanup();
+
+	if (sbstat)
+		test_lwext4_mp_stats();
+
+	test_lwext4_dir_ls("/mp/");
+	fflush(stdout);
+	if (!test_lwext4_dir_test(dir_cnt))
+		return EXIT_FAILURE;
+
+	fflush(stdout);
+	if (!test_lwext4_file_test(rw_count, rw_szie))
+		return EXIT_FAILURE;
+
+	fflush(stdout);
+	test_lwext4_dir_ls("/mp/");
+
+	if (sbstat)
+		test_lwext4_mp_stats();
+
+	if (cleanup_flag)
+		test_lwext4_cleanup();
+
+	if (bstat)
+		test_lwext4_block_stats();
+
+	if (!test_lwext4_umount())
+		return EXIT_FAILURE;
+
+	printf("\ntest finished\n");
+	return EXIT_SUCCESS;
+}
--- a/demos/generic/main.c
+++ /dev/null
@@ -1,535 +1,0 @@
-/*
- * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * - The name of the author may not be used to endorse or promote products
- *   derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <stdbool.h>
-#include <inttypes.h>
-#include <time.h>
-#include <unistd.h>
-#include <sys/time.h>
-
-#include <ext4_filedev.h>
-#include <io_raw.h>
-#include <ext4.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-/**@brief   Input stream name.*/
-char input_name[128] = "ext2";
-
-/**@brief   Read-write size*/
-static int rw_szie = 1024 * 1024;
-
-/**@brief   Read-write size*/
-static int rw_count = 10;
-
-/**@brief   Directory test count*/
-static int dir_cnt = 0;
-
-/**@brief   Static or dynamic cache mode*/
-static bool cache_mode = true;
-
-/**@brief   Cleanup after test.*/
-static bool cleanup_flag = false;
-
-/**@brief   Block device stats.*/
-static bool bstat = false;
-
-/**@brief   Superblock stats.*/
-static bool sbstat = false;
-
-/**@brief   Indicates that input is windows partition.*/
-static bool winpart = false;
-
-/**@brief   File write buffer*/
-static uint8_t *wr_buff;
-
-/**@brief   File read buffer.*/
-static uint8_t *rd_buff;
-
-/**@brief   Block device handle.*/
-static struct ext4_blockdev *bd;
-
-/**@brief   Static cache instance*/
-EXT4_BCACHE_STATIC_INSTANCE(_lwext4_cache, CONFIG_BLOCK_DEV_CACHE_SIZE, 1024);
-
-/**@brief   Block cache handle.*/
-static struct ext4_bcache *bc = &_lwext4_cache;
-
-static const char *usage = "                                    \n\
-Welcome in ext4 generic demo.                                   \n\
-Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)  \n\
-Usage:                                                          \n\
-    --i   - input file              (default = ext2)            \n\
-    --rws - single R/W size         (default = 1024 * 1024)     \n\
-    --rwc - R/W count               (default = 10)              \n\
-    --cache  - 0 static, 1 dynamic  (default = 1)               \n\
-    --dirs   - directory test count (default = 0)               \n\
-    --clean  - clean up after test                              \n\
-    --bstat  - block device stats                               \n\
-    --sbstat - superblock stats                                 \n\
-    --wpart  - windows partition mode                           \n\
-\n";
-
-static char *entry_to_str(uint8_t type)
-{
-	switch (type) {
-	case EXT4_DIRENTRY_UNKNOWN:
-		return "[UNK] ";
-	case EXT4_DIRENTRY_REG_FILE:
-		return "[FIL] ";
-	case EXT4_DIRENTRY_DIR:
-		return "[DIR] ";
-	case EXT4_DIRENTRY_CHRDEV:
-		return "[CHA] ";
-	case EXT4_DIRENTRY_BLKDEV:
-		return "[BLK] ";
-	case EXT4_DIRENTRY_FIFO:
-		return "[FIF] ";
-	case EXT4_DIRENTRY_SOCK:
-		return "[SOC] ";
-	case EXT4_DIRENTRY_SYMLINK:
-		return "[SYM] ";
-	default:
-		break;
-	}
-	return "[???]";
-}
-
-static void dir_ls(const char *path)
-{
-	char sss[255];
-	ext4_dir d;
-	const ext4_direntry *de;
-
-	printf("ls %s:\n", path);
-
-	ext4_dir_open(&d, path);
-	de = ext4_dir_entry_next(&d);
-
-	while (de) {
-		memcpy(sss, de->name, de->name_length);
-		sss[de->name_length] = 0;
-		printf("\t%s", entry_to_str(de->inode_type));
-		printf("%s", sss);
-		printf("\n");
-		de = ext4_dir_entry_next(&d);
-	}
-	ext4_dir_close(&d);
-}
-
-static void mp_stats(void)
-{
-	struct ext4_mount_stats stats;
-	ext4_mount_point_stats("/mp/", &stats);
-
-	printf("ext4_mount_point_stats:\n");
-	printf("\tinodes_count        = %" PRIu32 "\n", stats.inodes_count);
-	printf("\tfree_inodes_count   = %" PRIu32 "\n",
-	       stats.free_inodes_count);
-	printf("\tblocks_count        = %" PRIu32 "\n",
-	       (uint32_t)stats.blocks_count);
-	printf("\tfree_blocks_count   = %" PRIu32 "\n",
-	       (uint32_t)stats.free_blocks_count);
-	printf("\tblock_size          = %" PRIu32 "\n", stats.block_size);
-	printf("\tblock_group_count   = %" PRIu32 "\n",
-	       stats.block_group_count);
-	printf("\tblocks_per_group    = %" PRIu32 "\n", stats.blocks_per_group);
-	printf("\tinodes_per_group    = %" PRIu32 "\n", stats.inodes_per_group);
-	printf("\tvolume_name         = %s\n", stats.volume_name);
-}
-
-static void block_stats(void)
-{
-	uint32_t i;
-
-	printf("ext4 blockdev stats\n");
-	printf("\tbdev->bread_ctr          = %" PRIu32 "\n", bd->bread_ctr);
-	printf("\tbdev->bwrite_ctr         = %" PRIu32 "\n", bd->bwrite_ctr);
-
-	printf("\tbcache->ref_blocks       = %" PRIu32 "\n", bc->ref_blocks);
-	printf("\tbcache->max_ref_blocks   = %" PRIu32 "\n",
-	       bc->max_ref_blocks);
-	printf("\tbcache->lru_ctr          = %" PRIu32 "\n", bc->lru_ctr);
-
-	printf("\n");
-	for (i = 0; i < bc->cnt; ++i) {
-		printf("\tbcache->refctr[%" PRIu32 "]     = %" PRIu32 "\n", i,
-		       bc->refctr[i]);
-	}
-
-	printf("\n");
-	for (i = 0; i < bc->cnt; ++i) {
-		printf("\tbcache->lru_id[%" PRIu32 "]     = %" PRIu32 "\n", i,
-		       bc->lru_id[i]);
-	}
-
-	printf("\n");
-	for (i = 0; i < bc->cnt; ++i) {
-		printf("\tbcache->free_delay[%" PRIu32 "] = %d\n", i,
-		       bc->free_delay[i]);
-	}
-
-	printf("\n");
-	for (i = 0; i < bc->cnt; ++i) {
-		printf("\tbcache->lba[%" PRIu32 "]        = %" PRIu32 "\n", i,
-		       (uint32_t)bc->lba[i]);
-	}
-}
-
-static clock_t get_ms(void)
-{
-	struct timeval t;
-	gettimeofday(&t, NULL);
-	return (t.tv_sec * 1000) + (t.tv_usec / 1000);
-}
-
-static bool dir_test(int len)
-{
-	ext4_file f;
-	int r;
-	int i;
-	char path[64];
-	clock_t diff;
-	clock_t stop;
-	clock_t start;
-
-	printf("\ndir_test: %d\n", len);
-	printf("directory create: /mp/dir1\n");
-	start = get_ms();
-	r = ext4_dir_mk("/mp/dir1");
-	if (r != EOK) {
-		printf("\text4_dir_mk: rc = %d\n", r);
-		return false;
-	}
-
-	ext4_cache_write_back("/mp/", 1);
-	printf("add files to: /mp/dir1\n");
-	for (i = 0; i < len; ++i) {
-		sprintf(path, "/mp/dir1/f%d", i);
-		r = ext4_fopen(&f, path, "wb");
-		if (r != EOK) {
-			printf("\text4_fopen: rc = %d\n", r);
-			return false;
-		}
-	}
-	ext4_cache_write_back("/mp/", 0);
-
-	stop = get_ms();
-	diff = stop - start;
-	dir_ls("/mp/dir1");
-	printf("dir_test: time: %d ms\n", (int)diff);
-	return true;
-}
-
-static bool file_test(void)
-{
-	int r;
-	size_t size;
-	ext4_file f;
-	int i;
-	clock_t start;
-	clock_t stop;
-	clock_t diff;
-	uint32_t kbps;
-	uint64_t size_bytes;
-
-	printf("\nfile_test:\n");
-	/*Add hello world file.*/
-	r = ext4_fopen(&f, "/mp/hello.txt", "wb");
-	r = ext4_fwrite(&f, "Hello World !\n", strlen("Hello World !\n"), 0);
-	r = ext4_fclose(&f);
-
-	printf("ext4_fopen: write test\n");
-	start = get_ms();
-	r = ext4_fopen(&f, "/mp/test1", "wb");
-	if (r != EOK) {
-		printf("\text4_fopen rc = %d\n", r);
-		return false;
-	}
-
-	printf("ext4_write: %d * %d ...\n", rw_szie, rw_count);
-	for (i = 0; i < rw_count; ++i) {
-
-		memset(wr_buff, i % 10 + '0', rw_szie);
-
-		r = ext4_fwrite(&f, wr_buff, rw_szie, &size);
-
-		if ((r != EOK) || (size != rw_szie))
-			break;
-	}
-
-	if (i != rw_count) {
-		printf("\tfile_test: rw_count = %d\n", i);
-		return false;
-	}
-
-	stop = get_ms();
-	diff = stop - start;
-	size_bytes = rw_szie * rw_count;
-	size_bytes = (size_bytes * 1000) / 1024;
-	kbps = (size_bytes) / (diff + 1);
-	printf("\twrite time: %d ms\n", (int)diff);
-	printf("\twrite speed: %" PRIu32 " KB/s\n", kbps);
-	r = ext4_fclose(&f);
-
-	printf("ext4_fopen: read test\n");
-	start = get_ms();
-	r = ext4_fopen(&f, "/mp/test1", "r+");
-	if (r != EOK) {
-		printf("\text4_fopen rc = %d\n", r);
-		return false;
-	}
-
-	printf("ext4_read: %d * %d ...\n", rw_szie, rw_count);
-	for (i = 0; i < rw_count; ++i) {
-		memset(wr_buff, i % 10 + '0', rw_szie);
-		r = ext4_fread(&f, rd_buff, rw_szie, &size);
-
-		if ((r != EOK) || (size != rw_szie))
-			break;
-
-		if (memcmp(rd_buff, wr_buff, rw_szie)) {
-			break;
-		}
-	}
-	if (i != rw_count) {
-		printf("\tfile_test: rw_count = %d\n", i);
-		return false;
-	}
-	stop = get_ms();
-	diff = stop - start;
-	size_bytes = rw_szie * rw_count;
-	size_bytes = (size_bytes * 1000) / 1024;
-	kbps = (size_bytes) / (diff + 1);
-	printf("\tread time: %d ms\n", (int)diff);
-	printf("\tread speed: %" PRIu32 " KB/s\n", kbps);
-	r = ext4_fclose(&f);
-
-	return true;
-}
-static void cleanup(void)
-{
-	clock_t start;
-	clock_t stop;
-	clock_t diff;
-
-	printf("\ncleanup:\n");
-	ext4_fremove("/mp/hello.txt");
-	printf("cleanup: remove /mp/test1\n");
-	ext4_fremove("/mp/test1");
-
-	printf("cleanup: remove /mp/dir1\n");
-	start = get_ms();
-	ext4_dir_rm("/mp/dir1");
-	stop = get_ms();
-	diff = stop - start;
-	printf("cleanup: time: %d ms\n", (int)diff);
-}
-
-static bool open_filedev(void)
-{
-	ext4_filedev_filename(input_name);
-	bd = ext4_filedev_get();
-	if (!bd) {
-		printf("open_filedev: fail\n");
-		return false;
-	}
-	return true;
-}
-
-static bool open_winpartition(void)
-{
-#ifdef WIN32
-	ext4_io_raw_filename(input_name);
-	bd = ext4_io_raw_dev_get();
-	if (!bd) {
-		printf("open_winpartition: fail\n");
-		return false;
-	}
-	return true;
-#else
-	printf("open_winpartition: this mode should be used only under windows "
-	       "!\n");
-	return false;
-#endif
-}
-
-static bool mount(void)
-{
-	int r;
-	if (winpart) {
-		if (!open_winpartition())
-			return false;
-	} else {
-		if (!open_filedev())
-			return false;
-	}
-	wr_buff = malloc(rw_szie);
-	rd_buff = malloc(rw_szie);
-
-	if (!wr_buff || !rd_buff) {
-		printf("mount: allocation failed\n");
-		return false;
-	}
-
-	ext4_dmask_set(EXT4_DEBUG_ALL);
-
-	r = ext4_device_register(bd, cache_mode ? 0 : bc, "ext4_fs");
-	if (r != EOK) {
-		printf("ext4_device_register: rc = %d\n", r);
-		return false;
-	}
-
-	r = ext4_mount("ext4_fs", "/mp/");
-	if (r != EOK) {
-		printf("ext4_mount: rc = %d\n", r);
-		return false;
-	}
-
-	return true;
-}
-
-static bool umount(void)
-{
-	int r = ext4_umount("/mp/");
-	if (r != EOK) {
-		printf("ext4_umount: rc = %d", r);
-		return false;
-	}
-	return true;
-}
-
-static bool parse_opt(int argc, char **argv)
-{
-	int option_index = 0;
-	int c;
-
-	static struct option long_options[] = {
-	    {"in", required_argument, 0, 'a'},
-	    {"rws", required_argument, 0, 'b'},
-	    {"rwc", required_argument, 0, 'c'},
-	    {"cache", required_argument, 0, 'd'},
-	    {"dirs", required_argument, 0, 'e'},
-	    {"clean", no_argument, 0, 'f'},
-	    {"bstat", no_argument, 0, 'g'},
-	    {"sbstat", no_argument, 0, 'h'},
-	    {"wpart", no_argument, 0, 'i'},
-	    {0, 0, 0, 0}};
-
-	while (-1 != (c = getopt_long(argc, argv, "a:b:c:d:e:fghi",
-				      long_options, &option_index))) {
-
-		switch (c) {
-		case 'a':
-			strcpy(input_name, optarg);
-			break;
-		case 'b':
-			rw_szie = atoi(optarg);
-			break;
-		case 'c':
-			rw_count = atoi(optarg);
-			break;
-		case 'd':
-			cache_mode = atoi(optarg);
-			break;
-		case 'e':
-			dir_cnt = atoi(optarg);
-			break;
-		case 'f':
-			cleanup_flag = true;
-			break;
-		case 'g':
-			bstat = true;
-			break;
-		case 'h':
-			sbstat = true;
-			break;
-		case 'i':
-			winpart = true;
-			break;
-		default:
-			printf("%s", usage);
-			return false;
-		}
-	}
-	return true;
-}
-
-int main(int argc, char **argv)
-{
-	if (!parse_opt(argc, argv))
-		return EXIT_FAILURE;
-
-	printf("test conditions:\n");
-	printf("\timput name: %s\n", input_name);
-	printf("\trw size: %d\n", rw_szie);
-	printf("\trw count: %d\n", rw_count);
-	printf("\tcache mode: %s\n", cache_mode ? "dynamic" : "static");
-
-	if (!mount())
-		return EXIT_FAILURE;
-
-	cleanup();
-
-	if (sbstat)
-		mp_stats();
-
-	dir_ls("/mp/");
-	fflush(stdout);
-	if (!dir_test(dir_cnt))
-		return EXIT_FAILURE;
-
-	fflush(stdout);
-	if (!file_test())
-		return EXIT_FAILURE;
-
-	fflush(stdout);
-	dir_ls("/mp/");
-
-	if (sbstat)
-		mp_stats();
-
-	if (cleanup_flag)
-		cleanup();
-
-	if (bstat)
-		block_stats();
-
-	if (!umount())
-		return EXIT_FAILURE;
-
-	printf("\ntest finished\n");
-	return EXIT_SUCCESS;
-}
--- a/demos/stm32f429_disco/CMakeLists.txt
+++ b/demos/stm32f429_disco/CMakeLists.txt
@@ -33,6 +33,7 @@
 set_target_properties(stm32f429_demo PROPERTIES COMPILE_DEFINITIONS "STM32F429_439xx")
 
 set_target_properties(stm32f429_demo PROPERTIES LINK_FLAGS "-T${CMAKE_SOURCE_DIR}/demos/stm32f429_disco/stm32f429.ld")
+target_link_libraries(stm32f429_demo blockdev)
 target_link_libraries(stm32f429_demo lwext4)
 
 add_custom_target(stm32f429_size ALL DEPENDS stm32f429_demo COMMAND ${SIZE} -B stm32f429_demo)
--- a/demos/stm32f429_disco/main.c
+++ b/demos/stm32f429_disco/main.c
@@ -41,7 +41,9 @@
 
 #include <usb_msc_lwext4.h>
 #include <ext4.h>
+#include "../../blockdev/test_lwext4.h"
 
+
 /**@brief   Read-write size*/
 #define READ_WRITE_SZIZE 1024 * 16
 
@@ -72,12 +74,6 @@
 /**@brief   Superblock stats.*/
 static bool sbstat = false;
 
-/**@brief   File write buffer*/
-static uint8_t wr_buff[READ_WRITE_SZIZE];
-
-/**@brief   File read buffer.*/
-static uint8_t rd_buff[READ_WRITE_SZIZE];
-
 /**@brief   Block device handle.*/
 static struct ext4_blockdev *bd;
 
@@ -84,403 +80,93 @@
 /**@brief   Block cache handle.*/
 static struct ext4_bcache   *bc;
 
-static char* entry_to_str(uint8_t type)
-{
-    switch(type){
-    case EXT4_DIRENTRY_UNKNOWN:
-        return "[UNK] ";
-    case EXT4_DIRENTRY_REG_FILE:
-        return "[FIL] ";
-    case EXT4_DIRENTRY_DIR:
-        return "[DIR] ";
-    case EXT4_DIRENTRY_CHRDEV:
-        return "[CHA] ";
-    case EXT4_DIRENTRY_BLKDEV:
-        return "[BLK] ";
-    case EXT4_DIRENTRY_FIFO:
-        return "[FIF] ";
-    case EXT4_DIRENTRY_SOCK:
-        return "[SOC] ";
-    case EXT4_DIRENTRY_SYMLINK:
-        return "[SYM] ";
-    default:
-        break;
-    }
-    return "[???]";
-}
-
-static void dir_ls(const char *path)
-{
-    char sss[255];
-    ext4_dir d;
-    const ext4_direntry *de;
-
-    printf("ls %s\n", path);
-
-    ext4_dir_open(&d, path);
-    de = ext4_dir_entry_next(&d);
-
-    while(de){
-        memcpy(sss, de->name, de->name_length);
-        sss[de->name_length] = 0;
-        printf("  %s", entry_to_str(de->inode_type));
-        printf("%s", sss);
-        printf("\n");
-        de = ext4_dir_entry_next(&d);
-    }
-    ext4_dir_close(&d);
-}
-
-static void mp_stats(void)
-{
-    struct ext4_mount_stats stats;
-    ext4_mount_point_stats("/mp/", &stats);
-
-    printf("********************\n");
-    printf("ext4_mount_point_stats\n");
-    printf("inodes_count = %u\n", stats.inodes_count);
-    printf("free_inodes_count = %u\n", stats.free_inodes_count);
-    printf("blocks_count = %u\n", (uint32_t)stats.blocks_count);
-    printf("free_blocks_count = %u\n", (uint32_t)stats.free_blocks_count);
-    printf("block_size = %u\n", stats.block_size);
-    printf("block_group_count = %u\n", stats.block_group_count);
-    printf("blocks_per_group= %u\n", stats.blocks_per_group);
-    printf("inodes_per_group = %u\n", stats.inodes_per_group);
-    printf("volume_name = %s\n", stats.volume_name);
-
-    printf("********************\n");
-
-}
-
-static void block_stats(void)
-{
-    uint32_t i;
-
-    printf("********************\n");
-    printf("ext4 blockdev stats\n");
-    printf("bdev->bread_ctr = %u\n", bd->bread_ctr);
-    printf("bdev->bwrite_ctr = %u\n", bd->bwrite_ctr);
-
-
-    printf("bcache->ref_blocks = %u\n", bc->ref_blocks);
-    printf("bcache->max_ref_blocks = %u\n", bc->max_ref_blocks);
-    printf("bcache->lru_ctr = %u\n", bc->lru_ctr);
-
-    printf("\n");
-    for (i = 0; i < bc->cnt; ++i) {
-        printf("bcache->refctr[%d]= %u\n", i, bc->refctr[i]);
-    }
-
-    printf("\n");
-    for (i = 0; i < bc->cnt; ++i) {
-        printf("bcache->lru_id[%d] = %u\n", i, bc->lru_id[i]);
-    }
-
-    printf("\n");
-    for (i = 0; i < bc->cnt; ++i) {
-        printf("bcache->free_delay[%d] = %d\n", i, bc->free_delay[i]);
-    }
-
-    printf("\n");
-    for (i = 0; i < bc->cnt; ++i) {
-        printf("bcache->lba[%d] = %u\n", i, (uint32_t)bc->lba[i]);
-    }
-
-    printf("********************\n");
-}
-
-static clock_t get_ms(void)
-{
-    return tim_get_ms();
-}
-
-static void printf_io_timings(clock_t diff)
-{
-    const struct ext4_io_stats *stats = io_timings_get(diff);
-    printf("io_timings:\n");
-    printf("  io_read: %.3f%%\n", stats->io_read);
-    printf("  io_write: %.3f%%\n", stats->io_write);
-    printf("  io_cpu: %.3f%%\n", stats->cpu);
-}
-
-static bool dir_test(int len)
-{
-    ext4_file f;
-    int       r;
-    int       i;
-    char path[64];
-    clock_t diff;
-    clock_t stop;
-    clock_t start;
-
-    printf("dir_test: %d\n", len);
-    io_timings_clear();
-    start = get_ms();
-
-    printf("directory create: /mp/dir1\n");
-    r = ext4_dir_mk("/mp/dir1");
-    if(r != EOK){
-        printf("ext4_dir_mk: rc = %d\n", r);
-        return false;
-    }
-
-    printf("add files to: /mp/dir1\n");
-    for (i = 0; i < len; ++i) {
-        sprintf(path, "/mp/dir1/f%d", i);
-        r = ext4_fopen(&f, path, "wb");
-        if(r != EOK){
-            printf("ext4_fopen: rc = %d\n", r);
-            return false;
-        }
-    }
-
-    stop =  get_ms();
-    diff = stop - start;
-    dir_ls("/mp/dir1");
-    printf("dir_test: time: %d ms\n", (int)diff);
-    printf("dir_test: av: %d ms/entry\n", (int)diff / len);
-    printf_io_timings(diff);
-    return true;
-}
-
-
-static bool file_test(void)
-{
-    int r;
-    size_t  size;
-    ext4_file f;
-    int i;
-    clock_t start;
-    clock_t stop;
-    clock_t diff;
-    uint32_t kbps;
-    uint64_t size_bytes;
-
-    printf("file_test:\n");
-
-    /*Add hello world file.*/
-    r = ext4_fopen(&f, "/mp/hello.txt", "wb");
-    r = ext4_fwrite(&f, "Hello World !\n", strlen("Hello World !\n"), 0);
-    r = ext4_fclose(&f);
-
-
-    io_timings_clear();
-    start = get_ms();
-    r = ext4_fopen(&f, "/mp/test1", "wb");
-    if(r != EOK){
-        printf("ext4_fopen ERROR = %d\n", r);
-        return false;
-    }
-
-    printf("ext4_write: %d * %d ...\n" , rw_szie, rw_count);
-    for (i = 0; i < rw_count; ++i) {
-
-        memset(wr_buff, i % 10 + '0', rw_szie);
-
-        r = ext4_fwrite(&f, wr_buff, rw_szie, &size);
-
-        if((r != EOK) || (size != rw_szie))
-            break;
-    }
-
-    if(i != rw_count){
-        printf("  file_test: rw_count = %d\n", i);
-        return false;
-    }
-
-    stop = get_ms();
-    diff = stop - start;
-    size_bytes = rw_szie * rw_count;
-    size_bytes = (size_bytes * 1000) / 1024;
-    kbps = (size_bytes) / (diff + 1);
-    printf("  write time: %d ms\n", (int)diff);
-    printf("  write speed: %d KB/s\n", kbps);
-    printf_io_timings(diff);
-    r = ext4_fclose(&f);
-
-
-    io_timings_clear();
-    start = get_ms();
-    r = ext4_fopen(&f, "/mp/test1", "r+");
-    if(r != EOK){
-        printf("ext4_fopen ERROR = %d\n", r);
-        return false;
-    }
-
-    printf("ext4_read: %d * %d ...\n" , rw_szie, rw_count);
-
-    for (i = 0; i < rw_count; ++i) {
-        memset(wr_buff, i % 10 + '0', rw_szie);
-        r = ext4_fread(&f, rd_buff, rw_szie, &size);
-
-        if((r != EOK) || (size != rw_szie))
-            break;
-
-        if(memcmp(rd_buff, wr_buff, rw_szie))
-            break;
-    }
-
-    if(i != rw_count){
-        printf("  file_test: rw_count = %d\n", i);
-        return false;
-    }
-
-    stop = get_ms();
-    diff = stop - start;
-    size_bytes = rw_szie * rw_count;
-    size_bytes = (size_bytes * 1000) / 1024;
-    kbps = (size_bytes) / (diff + 1);
-    printf("  read time: %d ms\n", (int)diff);
-    printf("  read speed: %d KB/s\n", kbps);
-    printf_io_timings(diff);
-
-    r = ext4_fclose(&f);
-    return true;
-
-}
-static void cleanup(void)
-{
-    clock_t start;
-    clock_t stop;
-    clock_t diff;
-
-    printf("\ncleanup:\n");
-    ext4_fremove("/mp/hello.txt");
-
-    printf("remove /mp/test1\n");
-    ext4_fremove("/mp/test1");
-
-
-    printf("remove /mp/dir1\n");
-    io_timings_clear();
-    start = get_ms();
-    ext4_dir_rm("/mp/dir1");
-    stop = get_ms();
-    diff = stop - start;
-    printf("cleanup: time: %d ms\n", (int)diff);
-    printf_io_timings(diff);
-}
-
 static bool open_filedev(void)
 {
 
-    bd = ext4_usb_msc_get();
-    bc = ext4_usb_msc_cache_get();
-    if(!bd || !bc){
-        printf("open_filedev: fail\n");
-        return false;
-    }
-    return true;
+	bd = ext4_usb_msc_get();
+	bc = ext4_usb_msc_cache_get();
+	if(!bd || !bc){
+		printf("open_filedev: fail\n");
+		return false;
+	}
+	return true;
 }
 
-static bool mount(void)
-{
-    int r;
-
-    if(!open_filedev())
-        return false;
-
-    ext4_dmask_set(EXT4_DEBUG_ALL);
-
-    r = ext4_device_register(bd, cache_mode ? 0 : bc, "ext4_fs");
-    if(r != EOK){
-        printf("ext4_device_register: rc = %d\n", r);
-        return false;
-    }
-
-    r = ext4_mount("ext4_fs", "/mp/");
-    if(r != EOK){
-        printf("ext4_mount: rc = %d\n", r);
-        return false;
-    }
-
-    return true;
-}
-
-static bool umount(void)
-{
-    int r = ext4_umount("/mp/");
-    if(r != EOK){
-        printf("ext4_umount: fail %d", r);
-        return false;
-    }
-    return true;
-}
-
-
 int main(void)
 {
-    hw_init();
+	hw_init();
 
-    setbuf(stdout, 0);
-    printf("connect usb drive...\n");
+	setbuf(stdout, 0);
+	printf("connect usb drive...\n");
 
-    while(!hw_usb_connected())
-        hw_usb_process();
-    printf("usb drive connected\n");
+	while(!hw_usb_connected())
+		hw_usb_process();
+	printf("usb drive connected\n");
 
-    while(!hw_usb_enum_done())
-        hw_usb_process();
-    printf("usb drive enum done\n");
+	while(!hw_usb_enum_done())
+		hw_usb_process();
+	printf("usb drive enum done\n");
 
-    hw_led_red(1);
+	hw_led_red(1);
 
-    printf("test conditions:\n");
-    printf("  rw size: %d\n",  rw_szie);
-    printf("  rw count: %d\n", rw_count);
-    printf("  cache mode: %s\n", cache_mode ? "dynamic" : "static");
+	printf("test conditions:\n");
+	printf("  rw size: %d\n",  rw_szie);
+	printf("  rw count: %d\n", rw_count);
+	printf("  cache mode: %s\n", cache_mode ? "dynamic" : "static");
 
+	if (!open_filedev())
+		goto Finish;
 
-    tim_wait_ms(TEST_DELAY_MS);
-    if(!mount())
-        return EXIT_FAILURE;
+	tim_wait_ms(TEST_DELAY_MS);
+	if(!test_lwext4_mount(bd, bc))
+		return EXIT_FAILURE;
 
-    tim_wait_ms(TEST_DELAY_MS);
+	tim_wait_ms(TEST_DELAY_MS);
 
-    ext4_cache_write_back("/mp/", 1);
-    cleanup();
+	ext4_cache_write_back("/mp/", 1);
+	test_lwext4_cleanup();
 
-    if(sbstat){
-        tim_wait_ms(TEST_DELAY_MS);
-        mp_stats();
-    }
+	if(sbstat){
+		tim_wait_ms(TEST_DELAY_MS);
+		test_lwext4_mp_stats();
+	}
 
-    tim_wait_ms(TEST_DELAY_MS);
-    dir_ls("/mp/");
-    if(!dir_test(dir_cnt))
-        return EXIT_FAILURE;
+	tim_wait_ms(TEST_DELAY_MS);
+	test_lwext4_dir_ls("/mp/");
+	if(!test_lwext4_dir_test(dir_cnt))
+		return EXIT_FAILURE;
 
-    tim_wait_ms(TEST_DELAY_MS);
-    if(!file_test())
-        return EXIT_FAILURE;
+	tim_wait_ms(TEST_DELAY_MS);
+	if(!test_lwext4_file_test(rw_szie, rw_count))
+		return EXIT_FAILURE;
 
-    if(sbstat){
-        tim_wait_ms(TEST_DELAY_MS);
-        mp_stats();
-    }
+	if(sbstat){
+		tim_wait_ms(TEST_DELAY_MS);
+		test_lwext4_mp_stats();
+	}
 
-    if(cleanup_flag){
-        tim_wait_ms(TEST_DELAY_MS);
-        cleanup();
-    }
+	if(cleanup_flag){
+		tim_wait_ms(TEST_DELAY_MS);
+		test_lwext4_cleanup();
+	}
 
-    if(bstat){
-        tim_wait_ms(TEST_DELAY_MS);
-        block_stats();
-    }
+	if(bstat){
+		tim_wait_ms(TEST_DELAY_MS);
+		test_lwext4_block_stats();
+	}
 
-    ext4_cache_write_back("/mp/", 0);
-    if(!umount())
-        return EXIT_FAILURE;
+	ext4_cache_write_back("/mp/", 0);
+	if(!test_lwext4_umount())
+		return EXIT_FAILURE;
 
-    printf("press RESET button to restart\n");
+	printf("press RESET button to restart\n");
+	Finish:
+	while (1) {
+		tim_wait_ms(500);
+		hw_led_green(1);
+		tim_wait_ms(500);
+		hw_led_green(0);
 
-    while (1) {
-        tim_wait_ms(500);
-        hw_led_green(1);
-        tim_wait_ms(500);
-        hw_led_green(0);
-
-    }
+	}
 }
 
--- a/demos/stm32f429_disco/usb_msc_lwext4.c
+++ b/demos/stm32f429_disco/usb_msc_lwext4.c
@@ -40,6 +40,7 @@
 #include <usbh_msc.h>
 
 #include <usb_msc_lwext4.h>
+#include "../../blockdev/test_lwext4.h"
 
 extern USBH_HandleTypeDef hUSB_Host;
 
--- a/demos/stm32f429_disco/usb_msc_lwext4.h
+++ b/demos/stm32f429_disco/usb_msc_lwext4.h
@@ -40,18 +40,4 @@
 /**@brief   USB MSC blockdev get.*/
 struct ext4_blockdev* ext4_usb_msc_get(void);
 
-
-
-struct ext4_io_stats {
-    float io_read;
-    float io_write;
-    float cpu;
-};
-
-void io_timings_clear(void);
-const struct ext4_io_stats * io_timings_get(uint32_t time_sum_ms);
-
-
-
-
 #endif /* USB_MSC_LWEXT4_H_ */