1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
// 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[])
{
if (argc < 2 || argc > 3)
return CMD_RET_USAGE;
char *ep;
char *dev_str = argv[1];
char *file = argc >= 3 ? argv[2] : NULL;
int dev = simple_strtoul(dev_str, &ep, 16);
if (*ep) {
printf("** Bad device specification %s **\n", dev_str);
return CMD_RET_USAGE;
}
return !!host_dev_bind(dev, file);
}
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_platdata(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, 3, 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 <dev> [<filename>] - bind \"host\" device to file\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"
);
|
