mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 17:08:52 +09:00
![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
190 lines
4.5 KiB
C
190 lines
4.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2012, Google Inc.
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*/
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#include <common.h>
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#include <dm.h>
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#include <fs.h>
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#include <part.h>
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#include <sandboxblockdev.h>
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#include <linux/errno.h>
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static int host_curr_device = -1;
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static int do_host_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_SANDBOX);
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}
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static int do_host_ls(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_ls(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
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}
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static int do_host_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_SANDBOX);
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}
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static int do_host_save(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_save(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
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}
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static int do_host_bind(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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if (argc < 2 || argc > 3)
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return CMD_RET_USAGE;
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char *ep;
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char *dev_str = argv[1];
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char *file = argc >= 3 ? argv[2] : NULL;
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int dev = simple_strtoul(dev_str, &ep, 16);
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if (*ep) {
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printf("** Bad device specification %s **\n", dev_str);
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return CMD_RET_USAGE;
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}
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return host_dev_bind(dev, file);
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}
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static int do_host_info(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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if (argc < 1 || argc > 2)
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return CMD_RET_USAGE;
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int min_dev = 0;
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int max_dev = CONFIG_HOST_MAX_DEVICES - 1;
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if (argc >= 2) {
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char *ep;
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char *dev_str = argv[1];
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int dev = simple_strtoul(dev_str, &ep, 16);
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if (*ep) {
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printf("** Bad device specification %s **\n", dev_str);
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return CMD_RET_USAGE;
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}
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min_dev = dev;
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max_dev = dev;
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}
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int dev;
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printf("%3s %12s %s\n", "dev", "blocks", "path");
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for (dev = min_dev; dev <= max_dev; dev++) {
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struct blk_desc *blk_dev;
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int ret;
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printf("%3d ", dev);
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ret = host_get_dev_err(dev, &blk_dev);
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if (ret) {
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if (ret == -ENOENT)
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puts("Not bound to a backing file\n");
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else if (ret == -ENODEV)
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puts("Invalid host device number\n");
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continue;
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}
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struct host_block_dev *host_dev;
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#ifdef CONFIG_BLK
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host_dev = dev_get_priv(blk_dev->bdev);
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#else
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host_dev = blk_dev->priv;
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#endif
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printf("%12lu %s\n", (unsigned long)blk_dev->lba,
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host_dev->filename);
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}
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return 0;
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}
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static int do_host_dev(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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int dev;
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char *ep;
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struct blk_desc *blk_dev;
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int ret;
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if (argc < 1 || argc > 3)
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return CMD_RET_USAGE;
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if (argc == 1) {
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if (host_curr_device < 0) {
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printf("No current host device\n");
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return 1;
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}
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printf("Current host device %d\n", host_curr_device);
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return 0;
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}
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dev = simple_strtoul(argv[1], &ep, 16);
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if (*ep) {
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printf("** Bad device specification %s **\n", argv[2]);
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return CMD_RET_USAGE;
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}
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ret = host_get_dev_err(dev, &blk_dev);
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if (ret) {
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if (ret == -ENOENT)
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puts("Not bound to a backing file\n");
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else if (ret == -ENODEV)
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puts("Invalid host device number\n");
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return 1;
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}
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host_curr_device = dev;
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return 0;
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}
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static cmd_tbl_t cmd_host_sub[] = {
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U_BOOT_CMD_MKENT(load, 7, 0, do_host_load, "", ""),
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U_BOOT_CMD_MKENT(ls, 3, 0, do_host_ls, "", ""),
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U_BOOT_CMD_MKENT(save, 6, 0, do_host_save, "", ""),
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U_BOOT_CMD_MKENT(size, 3, 0, do_host_size, "", ""),
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U_BOOT_CMD_MKENT(bind, 3, 0, do_host_bind, "", ""),
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U_BOOT_CMD_MKENT(info, 3, 0, do_host_info, "", ""),
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U_BOOT_CMD_MKENT(dev, 0, 1, do_host_dev, "", ""),
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};
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static int do_host(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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cmd_tbl_t *c;
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/* Skip past 'host' */
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argc--;
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argv++;
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c = find_cmd_tbl(argv[0], cmd_host_sub,
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ARRAY_SIZE(cmd_host_sub));
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if (c)
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return c->cmd(cmdtp, flag, argc, argv);
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else
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return CMD_RET_USAGE;
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}
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U_BOOT_CMD(
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sb, 8, 1, do_host,
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"Deprecated: use 'host' command instead.", ""
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);
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U_BOOT_CMD(
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host, 8, 1, do_host,
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"Miscellaneous host commands",
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"load hostfs - <addr> <filename> [<bytes> <offset>] - "
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"load a file from host\n"
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"host ls hostfs - <filename> - list files on host\n"
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"host save hostfs - <addr> <filename> <bytes> [<offset>] - "
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"save a file to host\n"
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"host size hostfs - <filename> - determine size of file on host\n"
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"host bind <dev> [<filename>] - bind \"host\" device to file\n"
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"host info [<dev>] - show device binding & info\n"
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"host dev [<dev>] - Set or retrieve the current host device\n"
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"host commands use the \"hostfs\" device. The \"host\" device is used\n"
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"with standard IO commands such as fatls or ext2load"
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);
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