1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2012, Google Inc.
10 #include <sandbox_host.h>
11 #include <dm/device_compat.h>
12 #include <dm/device-internal.h>
13 #include <dm/uclass-internal.h>
14 #include <linux/errno.h>
15 #include <linux/log2.h>
17 static int do_host_load(struct cmd_tbl *cmdtp, int flag, int argc,
20 return do_load(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
23 static int do_host_ls(struct cmd_tbl *cmdtp, int flag, int argc,
26 return do_ls(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
29 static int do_host_size(struct cmd_tbl *cmdtp, int flag, int argc,
32 return do_size(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
35 static int do_host_save(struct cmd_tbl *cmdtp, int flag, int argc,
38 return do_save(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
41 static int do_host_bind(struct cmd_tbl *cmdtp, int flag, int argc,
44 bool removable = false;
48 unsigned long blksz = DEFAULT_BLKSZ;
57 if (!strcmp(argv[0], "-r")) {
63 if (argc < 2 || argc > 3)
68 blksz = dectoul(argv[2], NULL);
69 if (blksz < DEFAULT_BLKSZ || !is_power_of_2(blksz)) {
70 printf("blksz must be >= 512 and power of 2\n");
71 return CMD_RET_FAILURE;
75 ret = host_create_attach_file(label, file, removable, blksz, &dev);
77 printf("Cannot create device / bind file\n");
78 return CMD_RET_FAILURE;
85 * parse_host_label() - Parse a device label or sequence number
87 * This shows an error if it returns NULL
89 * @label: String containing the label or sequence number
90 * Returns: Associated device, or NULL if not found
92 static struct udevice *parse_host_label(const char *label)
96 dev = host_find_by_label(label);
101 devnum = hextoul(label, &ep);
103 uclass_find_device_by_seq(UCLASS_HOST, devnum, &dev)) {
104 printf("No such device '%s'\n", label);
112 static int do_host_unbind(struct cmd_tbl *cmdtp, int flag, int argc,
120 return CMD_RET_USAGE;
123 dev = parse_host_label(label);
125 return CMD_RET_FAILURE;
127 ret = host_detach_file(dev);
129 printf("Cannot detach file (err=%d)\n", ret);
130 return CMD_RET_FAILURE;
133 ret = device_unbind(dev);
135 printf("Cannot attach file\n");
136 ret = device_unbind(dev);
138 printf("Cannot unbind device '%s'\n", dev->name);
139 return CMD_RET_FAILURE;
145 static void show_host_dev(struct udevice *dev)
147 struct host_sb_plat *plat = dev_get_plat(dev);
148 struct blk_desc *desc;
152 printf("%3d ", dev_seq(dev));
154 printf("Not bound to a backing file\n");
157 ret = blk_get_from_parent(dev, &blk);
158 if (ret) /* cannot happen */
161 desc = dev_get_uclass_plat(blk);
162 printf("%12lu %6lu %-15s %s\n", (unsigned long)desc->lba, desc->blksz,
163 plat->label, plat->filename);
166 static int do_host_info(struct cmd_tbl *cmdtp, int flag, int argc,
172 return CMD_RET_USAGE;
176 dev = parse_host_label(argv[1]);
178 return CMD_RET_FAILURE;
181 printf("%3s %12s %6s %-15s %s\n",
182 "dev", "blocks", "blksz", "label", "path");
188 uclass_id_foreach_dev(UCLASS_HOST, dev, uc)
195 static int do_host_dev(struct cmd_tbl *cmdtp, int flag, int argc,
201 if (argc < 1 || argc > 3)
202 return CMD_RET_USAGE;
205 struct host_sb_plat *plat;
207 dev = host_get_cur_dev();
209 printf("No current host device\n");
210 return CMD_RET_FAILURE;
212 plat = dev_get_plat(dev);
213 printf("Current host device: %d: %s\n", dev_seq(dev),
219 dev = parse_host_label(argv[1]);
221 return CMD_RET_FAILURE;
223 host_set_cur_dev(dev);
228 static struct cmd_tbl cmd_host_sub[] = {
229 U_BOOT_CMD_MKENT(load, 7, 0, do_host_load, "", ""),
230 U_BOOT_CMD_MKENT(ls, 3, 0, do_host_ls, "", ""),
231 U_BOOT_CMD_MKENT(save, 6, 0, do_host_save, "", ""),
232 U_BOOT_CMD_MKENT(size, 3, 0, do_host_size, "", ""),
233 U_BOOT_CMD_MKENT(bind, 4, 0, do_host_bind, "", ""),
234 U_BOOT_CMD_MKENT(unbind, 4, 0, do_host_unbind, "", ""),
235 U_BOOT_CMD_MKENT(info, 3, 0, do_host_info, "", ""),
236 U_BOOT_CMD_MKENT(dev, 0, 1, do_host_dev, "", ""),
239 static int do_host(struct cmd_tbl *cmdtp, int flag, int argc,
244 /* Skip past 'host' */
248 c = find_cmd_tbl(argv[0], cmd_host_sub, ARRAY_SIZE(cmd_host_sub));
251 return c->cmd(cmdtp, flag, argc, argv);
253 return CMD_RET_USAGE;
258 "Miscellaneous host commands",
259 "load hostfs - <addr> <filename> [<bytes> <offset>] - "
260 "load a file from host\n"
261 "host ls hostfs - <filename> - list files on host\n"
262 "host save hostfs - <addr> <filename> <bytes> [<offset>] - "
263 "save a file to host\n"
264 "host size hostfs - <filename> - determine size of file on host\n"
265 "host bind [-r] <label> <filename> [<blksz>] - bind \"host\" device to file,\n"
266 " and optionally set the device's logical block size\n"
267 " -r = mark as removable\n"
268 "host unbind <label> - unbind file from \"host\" device\n"
269 "host info [<label>] - show device binding & info\n"
270 "host dev [<label>] - set or retrieve the current host device\n"
271 "host commands use the \"hostfs\" device. The \"host\" device is used\n"
272 "with standard IO commands such as fatls or ext2load"