diff options
Diffstat (limited to 'roms/u-boot/cmd/host.c')
| -rw-r--r-- | roms/u-boot/cmd/host.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/roms/u-boot/cmd/host.c b/roms/u-boot/cmd/host.c new file mode 100644 index 000000000..6aa3d9167 --- /dev/null +++ b/roms/u-boot/cmd/host.c @@ -0,0 +1,205 @@ +// 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" +); |