change log for examples-v2 (2011-03-11)
rtems-vc at rtems.org
rtems-vc at rtems.org
Fri Mar 11 19:10:04 UTC 2011
*joel*:
2011-03-11 Joel Sherrill <joel.sherrill at oarcorp.com>
* fat_ramdisk/.cvsignore, fat_ramdisk/Makefile, fat_ramdisk/README,
fat_ramdisk/init.c, fat_ramdisk/rootfs/shell-init: New files.
M 1.6 file_io/ChangeLog
A 1.1 file_io/fat_ramdisk/.cvsignore
A 1.1 file_io/fat_ramdisk/Makefile
A 1.1 file_io/fat_ramdisk/README
A 1.1 file_io/fat_ramdisk/init.c
A 1.1 file_io/fat_ramdisk/rootfs/shell-init
diff -u examples-v2/file_io/ChangeLog:1.5 examples-v2/file_io/ChangeLog:1.6
--- examples-v2/file_io/ChangeLog:1.5 Fri Mar 11 11:35:58 2011
+++ examples-v2/file_io/ChangeLog Fri Mar 11 12:37:57 2011
@@ -1,5 +1,10 @@
2011-03-11 Joel Sherrill <joel.sherrill at oarcorp.com>
+ * fat_ramdisk/.cvsignore, fat_ramdisk/Makefile, fat_ramdisk/README,
+ fat_ramdisk/init.c, fat_ramdisk/rootfs/shell-init: New files.
+
+2011-03-11 Joel Sherrill <joel.sherrill at oarcorp.com>
+
* Makefile: Add new example of untar to load initial contents of IMFS.
* crc/.cvsignore, crc/LICENSE, crc/Makefile, crc/README, crc/crc.h,
crc/crc_32.c, crc/init.c, crc/sniptype.h, crc/rootfs/image.img: New
diff -u /dev/null examples-v2/file_io/fat_ramdisk/.cvsignore:1.1
--- /dev/null Fri Mar 11 13:10:04 2011
+++ examples-v2/file_io/fat_ramdisk/.cvsignore Fri Mar 11 12:37:57 2011
@@ -0,0 +1,4 @@
+o-optimize
+FilesystemImage
+FilesystemImage.c
+FilesystemImage.h
diff -u /dev/null examples-v2/file_io/fat_ramdisk/Makefile:1.1
--- /dev/null Fri Mar 11 13:10:04 2011
+++ examples-v2/file_io/fat_ramdisk/Makefile Fri Mar 11 12:37:57 2011
@@ -0,0 +1,41 @@
+#
+# $Id$
+#
+
+#
+# RTEMS_MAKEFILE_PATH is typically set in an environment variable
+#
+
+PGM=${ARCH}/fat_ramdisk.exe
+
+# optional managers required
+MANAGERS=all
+
+# C source names
+CSRCS = init.c FilesystemImage.c
+COBJS = $(CSRCS:%.c=${ARCH}/%.o)
+
+CLEAN_ADDITIONS += stamp-fs-image
+CLEAN_ADDITIONS += FilesystemImage FilesystemImage.c FilesystemImage.h
+
+include $(RTEMS_MAKEFILE_PATH)/Makefile.inc
+include $(RTEMS_CUSTOM)
+include $(PROJECT_ROOT)/make/leaf.cfg
+
+OBJS= $(COBJS) $(CXXOBJS) $(ASOBJS)
+
+all: ${ARCH} $(OBJS) $(PGM)
+
+$(ARCH)/init.o: init.c stamp-fs-image
+
+FilesystemImage: $(ARCH) rootfs/shell-init
+ cd rootfs ; \
+ tar cf ../FilesystemImage --exclude CVS --exclude .cvsignore .
+
+stamp-fs-image: $(ARCH) FilesystemImage
+ $(PROJECT_ROOT)/bin/rtems-bin2c FilesystemImage FilesystemImage
+ ls -l Filesystem*
+ touch stamp-fs-image
+
+$(PGM): $(OBJS)
+ $(make-exe)
diff -u /dev/null examples-v2/file_io/fat_ramdisk/README:1.1
--- /dev/null Fri Mar 11 13:10:04 2011
+++ examples-v2/file_io/fat_ramdisk/README Fri Mar 11 12:37:57 2011
@@ -0,0 +1,9 @@
+#
+# $Id$
+#
+
+This is a simple example which illustrates how to use the
+In-Memory File System (IMFS) in conjunction with "untar" to
+load the initial contents.
+
+Thanks to Gedare Bloom for the code this is based upon.
diff -u /dev/null examples-v2/file_io/fat_ramdisk/init.c:1.1
--- /dev/null Fri Mar 11 13:10:04 2011
+++ examples-v2/file_io/fat_ramdisk/init.c Fri Mar 11 12:37:57 2011
@@ -0,0 +1,163 @@
+/*
+ * COPYRIGHT (c) 1989-2011.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+
+#include <bsp.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <rtems/ramdisk.h>
+#include <rtems/error.h>
+#include <rtems/untar.h>
+#include <rtems/shell.h>
+
+#include "FilesystemImage.h"
+
+
+/**
+ * The RAM Disk configuration.
+ */
+rtems_ramdisk_config rtems_ramdisk_configuration[] =
+{
+ {
+ block_size: 256,
+ block_num: 1024,
+ location: NULL
+ }
+};
+
+/**
+ * The number of RAM Disk configurations.
+ */
+size_t rtems_ramdisk_configuration_size = 1;
+
+/**
+ * Create the RAM Disk Driver entry.
+ */
+rtems_driver_address_table rtems_ramdisk_io_ops = {
+ initialization_entry: ramdisk_initialize,
+ open_entry: rtems_blkdev_generic_open,
+ close_entry: rtems_blkdev_generic_close,
+ read_entry: rtems_blkdev_generic_read,
+ write_entry: rtems_blkdev_generic_write,
+ control_entry: rtems_blkdev_generic_ioctl
+};
+
+#define RTEMS_DRIVER_AUTO_MAJOR (0)
+
+int setup_ramdisk (const char* mntpath)
+{
+ rtems_device_major_number major;
+ rtems_status_code sc;
+
+ /*
+ * Register the RAM Disk driver.
+ */
+ printf ("Register RAM Disk Driver: ");
+ sc = rtems_io_register_driver (RTEMS_DRIVER_AUTO_MAJOR,
+ &rtems_ramdisk_io_ops,
+ &major);
+ if (sc != RTEMS_SUCCESSFUL) {
+ printf ("error: ramdisk driver not initialised: %s\n",
+ rtems_status_text (sc));
+ return 1;
+ }
+
+ printf ("successful\n");
+ return 0;
+}
+
+/**
+ * Run the /shell-init script.
+ */
+void shell_init_script(void)
+{
+ rtems_status_code sc;
+ printf("Running /shell-init....\n\n");
+ sc = rtems_shell_script("fstst", 60 * 1024, 160, "/shell-init", "stdout",
+ 0, 1, 1);
+ if (sc != RTEMS_SUCCESSFUL)
+ printf("error: running shell script: %s (%d)\n",
+ rtems_status_text (sc), sc);
+}
+
+/**
+ * Start the RTEMS Shell.
+ */
+void shell_start ()
+{
+ rtems_status_code sc;
+ printf ("Starting shell....\n\n");
+ sc = rtems_shell_init ("fstst", 60 * 1024, 150, "/dev/console", 0, 1, NULL);
+ if (sc != RTEMS_SUCCESSFUL)
+ printf ("error: starting shell: %s (%d)\n", rtems_status_text (sc), sc);
+}
+
+
+
+rtems_task Init(
+ rtems_task_argument ignored
+)
+{
+ int ret;
+
+ puts( "\n\n*** ramdisk/fat example ***" );
+
+ printf("Unpacking tar filesystem\nThis may take awhile...\n");
+ if(Untar_FromMemory(FilesystemImage, FilesystemImage_size) != 0) {
+ printf("Can't unpack tar filesystem\n");
+ exit(1);
+ }
+
+ ret = setup_ramdisk ("/mnt/ramdisk");
+ if (ret)
+ exit (ret);
+
+ shell_init_script();
+ shell_start();
+
+ printf( "*** end of demonstration ***\n" );
+ exit( 0 );
+}
+
+
+/* configuration */
+
+#define CONFIGURE_SHELL_COMMANDS_INIT
+#define CONFIGURE_SHELL_COMMANDS_ALL
+#define CONFIGURE_SHELL_MOUNT_MSDOS
+
+#include <rtems/shellconfig.h>
+
+/* drivers */
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+/* filesystem */
+#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
+#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 40
+#define CONFIGURE_IMFS_MEMFILE_BYTES_PER_BLOCK 512
+#define CONFIGURE_MAXIMUM_DRIVERS 10
+
+#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
+#define CONFIGURE_SWAPOUT_TASK_PRIORITY 10
+
+#define CONFIGURE_MAXIMUM_TASKS rtems_resource_unlimited (10)
+#define CONFIGURE_MAXIMUM_SEMAPHORES rtems_resource_unlimited (10)
+#define CONFIGURE_MAXIMUM_MESSAGE_QUEUES rtems_resource_unlimited (5)
+#define CONFIGURE_MAXIMUM_PARTITIONS rtems_resource_unlimited (2)
+#define CONFIGURE_UNIFIED_WORK_AREAS
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INIT
+#include <rtems/confdefs.h>
+/* end of file */
diff -u /dev/null examples-v2/file_io/fat_ramdisk/rootfs/shell-init:1.1
--- /dev/null Fri Mar 11 13:10:04 2011
+++ examples-v2/file_io/fat_ramdisk/rootfs/shell-init Fri Mar 11 12:37:57 2011
@@ -0,0 +1,3 @@
+mkdos /dev/ramdisk0
+mkdir /rd
+mount -t msdos /dev/ramdisk0 /rd
--
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