// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2012, Google Inc. */ #include <common.h> #include <command.h> #include <dm.h> #include <fs.h> #include <part.h> #include <sandboxblockdev.h> #include <dm/device_compat.h> #include <linux/errno.h> static int host_curr_device = -1; static int do_host_load(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { return do_load(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX); } static int do_host_ls(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { return do_ls(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX); } static int do_host_size(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { return do_size(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX); } static int do_host_save(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { return do_save(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX); } static int do_host_bind(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { bool removable = false; const char *dev_str; char *file; char *ep; int dev; /* Skip 'bind' */ argc--; argv++; if (argc < 2) return CMD_RET_USAGE; if (!strcmp(argv[0], "-r")) { removable = true; argc--; argv++; } if (argc > 2) return CMD_RET_USAGE; dev_str = argv[0]; dev = simple_strtoul(dev_str, &ep, 16); if (*ep) { printf("** Bad device specification %s **\n", dev_str); return CMD_RET_USAGE; } file = argc > 1 ? argv[1] : NULL; return !!host_dev_bind(dev, file, removable); } static int do_host_info(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { if (argc < 1 || argc > 2) return CMD_RET_USAGE; int min_dev = 0; int max_dev = CONFIG_HOST_MAX_DEVICES - 1; if (argc >= 2) { char *ep; char *dev_str = argv[1]; int dev = simple_strtoul(dev_str, &ep, 16); if (*ep) { printf("** Bad device specification %s **\n", dev_str); return CMD_RET_USAGE; } min_dev = dev; max_dev = dev; } int dev; printf("%3s %12s %s\n", "dev", "blocks", "path"); for (dev = min_dev; dev <= max_dev; dev++) { struct blk_desc *blk_dev; int ret; printf("%3d ", dev); ret = host_get_dev_err(dev, &blk_dev); if (ret) { if (ret == -ENOENT) puts("Not bound to a backing file\n"); else if (ret == -ENODEV) puts("Invalid host device number\n"); continue; } struct host_block_dev *host_dev; #ifdef CONFIG_BLK host_dev = dev_get_plat(blk_dev->bdev); #else host_dev = blk_dev->priv; #endif printf("%12lu %s\n", (unsigned long)blk_dev->lba, host_dev->filename); } return 0; } static int do_host_dev(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { int dev; char *ep; struct blk_desc *blk_dev; int ret; if (argc < 1 || argc > 3) return CMD_RET_USAGE; if (argc == 1) { if (host_curr_device < 0) { printf("No current host device\n"); return 1; } printf("Current host device %d\n", host_curr_device); return 0; } dev = simple_strtoul(argv[1], &ep, 16); if (*ep) { printf("** Bad device specification %s **\n", argv[2]); return CMD_RET_USAGE; } ret = host_get_dev_err(dev, &blk_dev); if (ret) { if (ret == -ENOENT) puts("Not bound to a backing file\n"); else if (ret == -ENODEV) puts("Invalid host device number\n"); return 1; } host_curr_device = dev; return 0; } static struct cmd_tbl cmd_host_sub[] = { U_BOOT_CMD_MKENT(load, 7, 0, do_host_load, "", ""), U_BOOT_CMD_MKENT(ls, 3, 0, do_host_ls, "", ""), U_BOOT_CMD_MKENT(save, 6, 0, do_host_save, "", ""), U_BOOT_CMD_MKENT(size, 3, 0, do_host_size, "", ""), U_BOOT_CMD_MKENT(bind, 4, 0, do_host_bind, "", ""), U_BOOT_CMD_MKENT(info, 3, 0, do_host_info, "", ""), U_BOOT_CMD_MKENT(dev, 0, 1, do_host_dev, "", ""), }; static int do_host(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { struct cmd_tbl *c; /* Skip past 'host' */ argc--; argv++; c = find_cmd_tbl(argv[0], cmd_host_sub, ARRAY_SIZE(cmd_host_sub)); if (c) return c->cmd(cmdtp, flag, argc, argv); else return CMD_RET_USAGE; } U_BOOT_CMD( host, 8, 1, do_host, "Miscellaneous host commands", "load hostfs - <addr> <filename> [<bytes> <offset>] - " "load a file from host\n" "host ls hostfs - <filename> - list files on host\n" "host save hostfs - <addr> <filename> <bytes> [<offset>] - " "save a file to host\n" "host size hostfs - <filename> - determine size of file on host\n" "host bind [-r] <dev> [<filename>] - bind \"host\" device to file\n" " -r = mark as removable\n" "host info [<dev>] - show device binding & info\n" "host dev [<dev>] - Set or retrieve the current host device\n" "host commands use the \"hostfs\" device. The \"host\" device is used\n" "with standard IO commands such as fatls or ext2load" );