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https://github.com/brain-hackers/u-boot-brain
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cf6598193a
These commands may be used to determine the size of a file without actually reading the whole file content into memory. This may be used to determine if the file will fit into the memory buffer that will contain it. In particular, the DFU code will use it for this purpose in the next commit. Signed-off-by: Stephen Warren <swarren@nvidia.com>
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
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* (C) Copyright 2011 - 2012 Samsung Electronics
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* EXT4 filesystem implementation in Uboot by
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* Uma Shankar <uma.shankar@samsung.com>
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* Manjunatha C Achar <a.manjunatha@samsung.com>
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*
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* Ext4fs support
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* made from existing cmd_ext2.c file of Uboot
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*
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* (C) Copyright 2004
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* esd gmbh <www.esd-electronics.com>
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* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
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*
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* made from cmd_reiserfs by
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*
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* (C) Copyright 2003 - 2004
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* Sysgo Real-Time Solutions, AG <www.elinos.com>
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* Pavel Bartusek <pba@sysgo.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Changelog:
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* 0.1 - Newly created file for ext4fs support. Taken from cmd_ext2.c
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* file in uboot. Added ext4fs ls load and write support.
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*/
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#include <common.h>
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#include <part.h>
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#include <config.h>
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#include <command.h>
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#include <image.h>
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#include <linux/ctype.h>
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#include <asm/byteorder.h>
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#include <ext4fs.h>
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#include <linux/stat.h>
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#include <malloc.h>
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#include <fs.h>
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#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
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#include <usb.h>
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#endif
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int do_ext4_size(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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return do_size(cmdtp, flag, argc, argv, FS_TYPE_EXT);
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}
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int do_ext4_load(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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return do_load(cmdtp, flag, argc, argv, FS_TYPE_EXT);
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}
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int do_ext4_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
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{
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return do_ls(cmdtp, flag, argc, argv, FS_TYPE_EXT);
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}
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#if defined(CONFIG_CMD_EXT4_WRITE)
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int do_ext4_write(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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const char *filename = "/";
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int dev, part;
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unsigned long ram_address;
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unsigned long file_size;
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disk_partition_t info;
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block_dev_desc_t *dev_desc;
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if (argc < 6)
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return cmd_usage(cmdtp);
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part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
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if (part < 0)
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return 1;
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dev = dev_desc->dev;
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/* get the filename */
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filename = argv[4];
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/* get the address in hexadecimal format (string to int) */
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ram_address = simple_strtoul(argv[3], NULL, 16);
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/* get the filesize in hexadecimal format */
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file_size = simple_strtoul(argv[5], NULL, 16);
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/* set the device as block device */
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ext4fs_set_blk_dev(dev_desc, &info);
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/* mount the filesystem */
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if (!ext4fs_mount(info.size)) {
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printf("Bad ext4 partition %s %d:%d\n", argv[1], dev, part);
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goto fail;
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}
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/* start write */
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if (ext4fs_write(filename, (unsigned char *)ram_address, file_size)) {
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printf("** Error ext4fs_write() **\n");
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goto fail;
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}
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ext4fs_close();
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return 0;
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fail:
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ext4fs_close();
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return 1;
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}
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U_BOOT_CMD(ext4write, 6, 1, do_ext4_write,
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"create a file in the root directory",
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"<interface> <dev[:part]> <addr> <absolute filename path> [sizebytes]\n"
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" - create a file in / directory");
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#endif
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U_BOOT_CMD(
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ext4size, 4, 0, do_ext4_size,
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"determine a file's size",
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"<interface> <dev[:part]> <filename>\n"
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" - Find file 'filename' from 'dev' on 'interface'\n"
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" and determine its size."
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);
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U_BOOT_CMD(ext4ls, 4, 1, do_ext4_ls,
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"list files in a directory (default /)",
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"<interface> <dev[:part]> [directory]\n"
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" - list files from 'dev' on 'interface' in a 'directory'");
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U_BOOT_CMD(ext4load, 6, 0, do_ext4_load,
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"load binary file from a Ext4 filesystem",
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"<interface> <dev[:part]> [addr] [filename] [bytes]\n"
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" - load binary file 'filename' from 'dev' on 'interface'\n"
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" to address 'addr' from ext4 filesystem");
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