2 * Copyright (C) 2011 Samsung Electronics
3 * Lukasz Majewski <l.majewski@samsung.com>
5 * SPDX-License-Identifier: GPL-2.0+
14 #include <usb_mass_storage.h>
16 static int ums_read_sector(struct ums
*ums_dev
,
17 ulong start
, lbaint_t blkcnt
, void *buf
)
19 block_dev_desc_t
*block_dev
= ums_dev
->block_dev
;
20 lbaint_t blkstart
= start
+ ums_dev
->start_sector
;
21 int dev_num
= block_dev
->dev
;
23 return block_dev
->block_read(dev_num
, blkstart
, blkcnt
, buf
);
26 static int ums_write_sector(struct ums
*ums_dev
,
27 ulong start
, lbaint_t blkcnt
, const void *buf
)
29 block_dev_desc_t
*block_dev
= ums_dev
->block_dev
;
30 lbaint_t blkstart
= start
+ ums_dev
->start_sector
;
31 int dev_num
= block_dev
->dev
;
33 return block_dev
->block_write(dev_num
, blkstart
, blkcnt
, buf
);
36 static struct ums ums_dev
= {
37 .read_sector
= ums_read_sector
,
38 .write_sector
= ums_write_sector
,
42 struct ums
*ums_init(const char *devtype
, const char *devnum
)
44 block_dev_desc_t
*block_dev
;
47 ret
= get_device(devtype
, devnum
, &block_dev
);
51 /* f_mass_storage.c assumes SECTOR_SIZE sectors */
52 if (block_dev
->blksz
!= SECTOR_SIZE
)
55 ums_dev
.block_dev
= block_dev
;
56 ums_dev
.start_sector
= 0;
57 ums_dev
.num_sectors
= block_dev
->lba
;
59 printf("UMS: disk start sector: %#x, count: %#x\n",
60 ums_dev
.start_sector
, ums_dev
.num_sectors
);
65 int do_usb_mass_storage(cmd_tbl_t
*cmdtp
, int flag
,
66 int argc
, char * const argv
[])
68 const char *usb_controller
;
72 unsigned int controller_index
;
74 int cable_ready_timeout __maybe_unused
;
79 usb_controller
= argv
[1];
83 ums
= ums_init(devtype
, devnum
);
85 return CMD_RET_FAILURE
;
87 controller_index
= (unsigned int)(simple_strtoul(
88 usb_controller
, NULL
, 0));
89 if (board_usb_init(controller_index
, USB_INIT_DEVICE
)) {
90 error("Couldn't init USB controller.");
91 return CMD_RET_FAILURE
;
96 error("fsg_init failed");
97 return CMD_RET_FAILURE
;
100 rc
= g_dnl_register("usb_dnl_ums");
102 error("g_dnl_register failed");
103 return CMD_RET_FAILURE
;
106 /* Timeout unit: seconds */
107 cable_ready_timeout
= UMS_CABLE_READY_TIMEOUT
;
109 if (!g_dnl_board_usb_cable_connected()) {
111 * Won't execute if we don't know whether the cable is
114 puts("Please connect USB cable.\n");
116 while (!g_dnl_board_usb_cable_connected()) {
118 puts("\rCTRL+C - Operation aborted.\n");
121 if (!cable_ready_timeout
) {
122 puts("\rUSB cable not detected.\n" \
127 printf("\rAuto exit in: %.2d s.", cable_ready_timeout
);
129 cable_ready_timeout
--;
135 usb_gadget_handle_interrupts();
137 rc
= fsg_main_thread(NULL
);
139 /* Check I/O error */
141 printf("\rCheck USB cable connection\n");
145 printf("\rCTRL+C - Operation aborted\n");
152 return CMD_RET_SUCCESS
;
155 U_BOOT_CMD(ums
, CONFIG_SYS_MAXARGS
, 1, do_usb_mass_storage
,
156 "Use the UMS [User Mass Storage]",
157 "ums <USB_controller> <mmc_dev> e.g. ums 0 0"