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6#include <common.h>
7#include <command.h>
8#include <dm.h>
9#include <fs.h>
10#include <part.h>
11#include <sandboxblockdev.h>
12#include <dm/device_compat.h>
13#include <linux/errno.h>
14
15static int host_curr_device = -1;
16
17static int do_host_load(struct cmd_tbl *cmdtp, int flag, int argc,
18 char *const argv[])
19{
20 return do_load(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
21}
22
23static int do_host_ls(struct cmd_tbl *cmdtp, int flag, int argc,
24 char *const argv[])
25{
26 return do_ls(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
27}
28
29static int do_host_size(struct cmd_tbl *cmdtp, int flag, int argc,
30 char *const argv[])
31{
32 return do_size(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
33}
34
35static int do_host_save(struct cmd_tbl *cmdtp, int flag, int argc,
36 char *const argv[])
37{
38 return do_save(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
39}
40
41static int do_host_bind(struct cmd_tbl *cmdtp, int flag, int argc,
42 char *const argv[])
43{
44 bool removable = false;
45 const char *dev_str;
46 char *file;
47 char *ep;
48 int dev;
49
50
51 argc--;
52 argv++;
53 if (argc < 2)
54 return CMD_RET_USAGE;
55
56 if (!strcmp(argv[0], "-r")) {
57 removable = true;
58 argc--;
59 argv++;
60 }
61
62 if (argc > 2)
63 return CMD_RET_USAGE;
64 dev_str = argv[0];
65 dev = hextoul(dev_str, &ep);
66 if (*ep) {
67 printf("** Bad device specification %s **\n", dev_str);
68 return CMD_RET_USAGE;
69 }
70 file = argc > 1 ? argv[1] : NULL;
71
72 return !!host_dev_bind(dev, file, removable);
73}
74
75static int do_host_info(struct cmd_tbl *cmdtp, int flag, int argc,
76 char *const argv[])
77{
78 if (argc < 1 || argc > 2)
79 return CMD_RET_USAGE;
80 int min_dev = 0;
81 int max_dev = CONFIG_HOST_MAX_DEVICES - 1;
82 if (argc >= 2) {
83 char *ep;
84 char *dev_str = argv[1];
85 int dev = hextoul(dev_str, &ep);
86 if (*ep) {
87 printf("** Bad device specification %s **\n", dev_str);
88 return CMD_RET_USAGE;
89 }
90 min_dev = dev;
91 max_dev = dev;
92 }
93 int dev;
94 printf("%3s %12s %s\n", "dev", "blocks", "path");
95 for (dev = min_dev; dev <= max_dev; dev++) {
96 struct blk_desc *blk_dev;
97 int ret;
98
99 printf("%3d ", dev);
100 ret = host_get_dev_err(dev, &blk_dev);
101 if (ret) {
102 if (ret == -ENOENT)
103 puts("Not bound to a backing file\n");
104 else if (ret == -ENODEV)
105 puts("Invalid host device number\n");
106
107 continue;
108 }
109 struct host_block_dev *host_dev;
110
111#ifdef CONFIG_BLK
112 host_dev = dev_get_plat(blk_dev->bdev);
113#else
114 host_dev = blk_dev->priv;
115#endif
116 printf("%12lu %s\n", (unsigned long)blk_dev->lba,
117 host_dev->filename);
118 }
119 return 0;
120}
121
122static int do_host_dev(struct cmd_tbl *cmdtp, int flag, int argc,
123 char *const argv[])
124{
125 int dev;
126 char *ep;
127 struct blk_desc *blk_dev;
128 int ret;
129
130 if (argc < 1 || argc > 3)
131 return CMD_RET_USAGE;
132
133 if (argc == 1) {
134 if (host_curr_device < 0) {
135 printf("No current host device\n");
136 return 1;
137 }
138 printf("Current host device %d\n", host_curr_device);
139 return 0;
140 }
141
142 dev = hextoul(argv[1], &ep);
143 if (*ep) {
144 printf("** Bad device specification %s **\n", argv[2]);
145 return CMD_RET_USAGE;
146 }
147
148 ret = host_get_dev_err(dev, &blk_dev);
149 if (ret) {
150 if (ret == -ENOENT)
151 puts("Not bound to a backing file\n");
152 else if (ret == -ENODEV)
153 puts("Invalid host device number\n");
154
155 return 1;
156 }
157
158 host_curr_device = dev;
159 return 0;
160}
161
162static struct cmd_tbl cmd_host_sub[] = {
163 U_BOOT_CMD_MKENT(load, 7, 0, do_host_load, "", ""),
164 U_BOOT_CMD_MKENT(ls, 3, 0, do_host_ls, "", ""),
165 U_BOOT_CMD_MKENT(save, 6, 0, do_host_save, "", ""),
166 U_BOOT_CMD_MKENT(size, 3, 0, do_host_size, "", ""),
167 U_BOOT_CMD_MKENT(bind, 4, 0, do_host_bind, "", ""),
168 U_BOOT_CMD_MKENT(info, 3, 0, do_host_info, "", ""),
169 U_BOOT_CMD_MKENT(dev, 0, 1, do_host_dev, "", ""),
170};
171
172static int do_host(struct cmd_tbl *cmdtp, int flag, int argc,
173 char *const argv[])
174{
175 struct cmd_tbl *c;
176
177
178 argc--;
179 argv++;
180
181 c = find_cmd_tbl(argv[0], cmd_host_sub,
182 ARRAY_SIZE(cmd_host_sub));
183
184 if (c)
185 return c->cmd(cmdtp, flag, argc, argv);
186 else
187 return CMD_RET_USAGE;
188}
189
190U_BOOT_CMD(
191 host, 8, 1, do_host,
192 "Miscellaneous host commands",
193 "load hostfs - <addr> <filename> [<bytes> <offset>] - "
194 "load a file from host\n"
195 "host ls hostfs - <filename> - list files on host\n"
196 "host save hostfs - <addr> <filename> <bytes> [<offset>] - "
197 "save a file to host\n"
198 "host size hostfs - <filename> - determine size of file on host\n"
199 "host bind [-r] <dev> [<filename>] - bind \"host\" device to file\n"
200 " -r = mark as removable\n"
201 "host info [<dev>] - show device binding & info\n"
202 "host dev [<dev>] - Set or retrieve the current host device\n"
203 "host commands use the \"hostfs\" device. The \"host\" device is used\n"
204 "with standard IO commands such as fatls or ext2load"
205);
206
