2 * Copyright (C) 2011 Samsung Electronics
3 * Lukasz Majewski <l.majewski@samsung.com>
5 * Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
7 * SPDX-License-Identifier: GPL-2.0+
17 #include <usb_mass_storage.h>
19 static int ums_read_sector(struct ums
*ums_dev
,
20 ulong start
, lbaint_t blkcnt
, void *buf
)
22 struct blk_desc
*block_dev
= &ums_dev
->block_dev
;
23 lbaint_t blkstart
= start
+ ums_dev
->start_sector
;
25 return blk_dread(block_dev
, blkstart
, blkcnt
, buf
);
28 static int ums_write_sector(struct ums
*ums_dev
,
29 ulong start
, lbaint_t blkcnt
, const void *buf
)
31 struct blk_desc
*block_dev
= &ums_dev
->block_dev
;
32 lbaint_t blkstart
= start
+ ums_dev
->start_sector
;
34 return blk_dwrite(block_dev
, blkstart
, blkcnt
, buf
);
37 static struct ums
*ums
;
40 static void ums_fini(void)
44 for (i
= 0; i
< ums_count
; i
++)
45 free((void *)ums
[i
].name
);
51 #define UMS_NAME_LEN 16
53 static int ums_init(const char *devtype
, const char *devnums_part_str
)
55 char *s
, *t
, *devnum_part_str
, *name
;
56 struct blk_desc
*block_dev
;
57 disk_partition_t info
;
62 s
= strdup(devnums_part_str
);
70 devnum_part_str
= strsep(&t
, ",");
74 partnum
= blk_get_device_part_str(devtype
, devnum_part_str
,
75 &block_dev
, &info
, 1);
80 /* Check if the argument is in legacy format. If yes,
81 * expose all partitions by setting the partnum = 0
84 if (!strchr(devnum_part_str
, ':'))
87 /* f_mass_storage.c assumes SECTOR_SIZE sectors */
88 if (block_dev
->blksz
!= SECTOR_SIZE
)
91 ums_new
= realloc(ums
, (ums_count
+ 1) * sizeof(*ums
));
96 /* if partnum = 0, expose all partitions */
98 ums
[ums_count
].start_sector
= 0;
99 ums
[ums_count
].num_sectors
= block_dev
->lba
;
101 ums
[ums_count
].start_sector
= info
.start
;
102 ums
[ums_count
].num_sectors
= info
.size
;
105 ums
[ums_count
].read_sector
= ums_read_sector
;
106 ums
[ums_count
].write_sector
= ums_write_sector
;
108 name
= malloc(UMS_NAME_LEN
);
111 snprintf(name
, UMS_NAME_LEN
, "UMS disk %d", ums_count
);
112 ums
[ums_count
].name
= name
;
113 ums
[ums_count
].block_dev
= *block_dev
;
115 printf("UMS: LUN %d, dev %d, hwpart %d, sector %#x, count %#x\n",
116 ums_count
, ums
[ums_count
].block_dev
.devnum
,
117 ums
[ums_count
].block_dev
.hwpart
,
118 ums
[ums_count
].start_sector
,
119 ums
[ums_count
].num_sectors
);
136 int do_usb_mass_storage(cmd_tbl_t
*cmdtp
, int flag
,
137 int argc
, char * const argv
[])
139 const char *usb_controller
;
142 unsigned int controller_index
;
144 int cable_ready_timeout __maybe_unused
;
147 return CMD_RET_USAGE
;
149 usb_controller
= argv
[1];
158 rc
= ums_init(devtype
, devnum
);
160 return CMD_RET_FAILURE
;
162 controller_index
= (unsigned int)(simple_strtoul(
163 usb_controller
, NULL
, 0));
164 if (board_usb_init(controller_index
, USB_INIT_DEVICE
)) {
165 error("Couldn't init USB controller.");
166 rc
= CMD_RET_FAILURE
;
167 goto cleanup_ums_init
;
170 rc
= fsg_init(ums
, ums_count
);
172 error("fsg_init failed");
173 rc
= CMD_RET_FAILURE
;
177 rc
= g_dnl_register("usb_dnl_ums");
179 error("g_dnl_register failed");
180 rc
= CMD_RET_FAILURE
;
184 /* Timeout unit: seconds */
185 cable_ready_timeout
= UMS_CABLE_READY_TIMEOUT
;
187 if (!g_dnl_board_usb_cable_connected()) {
189 * Won't execute if we don't know whether the cable is
192 puts("Please connect USB cable.\n");
194 while (!g_dnl_board_usb_cable_connected()) {
196 puts("\rCTRL+C - Operation aborted.\n");
197 rc
= CMD_RET_SUCCESS
;
198 goto cleanup_register
;
200 if (!cable_ready_timeout
) {
201 puts("\rUSB cable not detected.\n" \
203 rc
= CMD_RET_SUCCESS
;
204 goto cleanup_register
;
207 printf("\rAuto exit in: %.2d s.", cable_ready_timeout
);
209 cable_ready_timeout
--;
215 usb_gadget_handle_interrupts(controller_index
);
217 rc
= fsg_main_thread(NULL
);
219 /* Check I/O error */
221 printf("\rCheck USB cable connection\n");
225 printf("\rCTRL+C - Operation aborted\n");
227 rc
= CMD_RET_SUCCESS
;
228 goto cleanup_register
;
235 board_usb_cleanup(controller_index
, USB_INIT_DEVICE
);
242 U_BOOT_CMD(ums
, 4, 1, do_usb_mass_storage
,
243 "Use the UMS [USB Mass Storage]",
244 "<USB_controller> [<devtype>] <dev[:part]> e.g. ums 0 mmc 0\n"
245 " devtype defaults to mmc"