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
|
/*
* Copyright (C) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <errno.h>
#include <common.h>
#include <command.h>
#include <g_dnl.h>
#include <part.h>
#include <usb.h>
#include <usb_mass_storage.h>
static int ums_read_sector(struct ums *ums_dev,
ulong start, lbaint_t blkcnt, void *buf)
{
block_dev_desc_t *block_dev = ums_dev->block_dev;
lbaint_t blkstart = start + ums_dev->start_sector;
int dev_num = block_dev->dev;
return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
}
static int ums_write_sector(struct ums *ums_dev,
ulong start, lbaint_t blkcnt, const void *buf)
{
block_dev_desc_t *block_dev = ums_dev->block_dev;
lbaint_t blkstart = start + ums_dev->start_sector;
int dev_num = block_dev->dev;
return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
}
static struct ums ums_dev = {
.read_sector = ums_read_sector,
.write_sector = ums_write_sector,
.name = "UMS disk",
};
struct ums *ums_init(const char *devtype, const char *devnum)
{
block_dev_desc_t *block_dev;
int ret;
ret = get_device(devtype, devnum, &block_dev);
if (ret < 0)
return NULL;
/* f_mass_storage.c assumes SECTOR_SIZE sectors */
if (block_dev->blksz != SECTOR_SIZE)
return NULL;
ums_dev.block_dev = block_dev;
ums_dev.start_sector = 0;
ums_dev.num_sectors = block_dev->lba;
printf("UMS: disk start sector: %#x, count: %#x\n",
ums_dev.start_sector, ums_dev.num_sectors);
return &ums_dev;
}
int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
const char *usb_controller;
const char *devtype;
const char *devnum;
struct ums *ums;
unsigned int controller_index;
int rc;
int cable_ready_timeout __maybe_unused;
if (argc < 3)
return CMD_RET_USAGE;
usb_controller = argv[1];
if (argc >= 4) {
devtype = argv[2];
devnum = argv[3];
} else {
devtype = "mmc";
devnum = argv[2];
}
ums = ums_init(devtype, devnum);
if (!ums)
return CMD_RET_FAILURE;
controller_index = (unsigned int)(simple_strtoul(
usb_controller, NULL, 0));
if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
error("Couldn't init USB controller.");
return CMD_RET_FAILURE;
}
rc = fsg_init(ums);
if (rc) {
error("fsg_init failed");
return CMD_RET_FAILURE;
}
rc = g_dnl_register("usb_dnl_ums");
if (rc) {
error("g_dnl_register failed");
return CMD_RET_FAILURE;
}
/* Timeout unit: seconds */
cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
if (!g_dnl_board_usb_cable_connected()) {
/*
* Won't execute if we don't know whether the cable is
* connected.
*/
puts("Please connect USB cable.\n");
while (!g_dnl_board_usb_cable_connected()) {
if (ctrlc()) {
puts("\rCTRL+C - Operation aborted.\n");
goto exit;
}
if (!cable_ready_timeout) {
puts("\rUSB cable not detected.\n" \
"Command exit.\n");
goto exit;
}
printf("\rAuto exit in: %.2d s.", cable_ready_timeout);
mdelay(1000);
cable_ready_timeout--;
}
puts("\r\n");
}
while (1) {
usb_gadget_handle_interrupts(controller_index);
rc = fsg_main_thread(NULL);
if (rc) {
/* Check I/O error */
if (rc == -EIO)
printf("\rCheck USB cable connection\n");
/* Check CTRL+C */
if (rc == -EPIPE)
printf("\rCTRL+C - Operation aborted\n");
goto exit;
}
}
exit:
g_dnl_unregister();
board_usb_cleanup(controller_index, USB_INIT_DEVICE);
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
"Use the UMS [User Mass Storage]",
"<USB_controller> [<devtype>] <devnum> e.g. ums 0 mmc 0\n"
" devtype defaults to mmc"
);
|
