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"