2 * Copyright (C) 2011 Samsung Electronics
3 * Lukasz Majewski <l.majewski@samsung.com>
5 * SPDX-License-Identifier: GPL-2.0+
15 #include <usb_mass_storage.h>
17 static int ums_read_sector(struct ums *ums_dev,
18 ulong start, lbaint_t blkcnt, void *buf)
20 block_dev_desc_t *block_dev = ums_dev->block_dev;
21 lbaint_t blkstart = start + ums_dev->start_sector;
23 return block_dev->block_read(block_dev, 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;
32 return block_dev->block_write(block_dev, blkstart, blkcnt, buf);
35 static struct ums ums_dev = {
36 .read_sector = ums_read_sector,
37 .write_sector = ums_write_sector,
41 struct ums *ums_init(const char *devtype, const char *devnum)
43 block_dev_desc_t *block_dev;
46 ret = get_device(devtype, devnum, &block_dev);
50 /* f_mass_storage.c assumes SECTOR_SIZE sectors */
51 if (block_dev->blksz != SECTOR_SIZE)
54 ums_dev.block_dev = block_dev;
55 ums_dev.start_sector = 0;
56 ums_dev.num_sectors = block_dev->lba;
58 printf("UMS: disk start sector: %#x, count: %#x\n",
59 ums_dev.start_sector, ums_dev.num_sectors);
64 int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
65 int argc, char * const argv[])
67 const char *usb_controller;
71 unsigned int controller_index;
73 int cable_ready_timeout __maybe_unused;
78 usb_controller = argv[1];
87 ums = ums_init(devtype, devnum);
89 return CMD_RET_FAILURE;
91 controller_index = (unsigned int)(simple_strtoul(
92 usb_controller, NULL, 0));
93 if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
94 error("Couldn't init USB controller.");
95 return CMD_RET_FAILURE;
100 error("fsg_init failed");
101 return CMD_RET_FAILURE;
104 rc = g_dnl_register("usb_dnl_ums");
106 error("g_dnl_register failed");
107 return CMD_RET_FAILURE;
110 /* Timeout unit: seconds */
111 cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
113 if (!g_dnl_board_usb_cable_connected()) {
115 * Won't execute if we don't know whether the cable is
118 puts("Please connect USB cable.\n");
120 while (!g_dnl_board_usb_cable_connected()) {
122 puts("\rCTRL+C - Operation aborted.\n");
125 if (!cable_ready_timeout) {
126 puts("\rUSB cable not detected.\n" \
131 printf("\rAuto exit in: %.2d s.", cable_ready_timeout);
133 cable_ready_timeout--;
139 usb_gadget_handle_interrupts(controller_index);
141 rc = fsg_main_thread(NULL);
143 /* Check I/O error */
145 printf("\rCheck USB cable connection\n");
149 printf("\rCTRL+C - Operation aborted\n");
156 board_usb_cleanup(controller_index, USB_INIT_DEVICE);
157 return CMD_RET_SUCCESS;
160 U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
161 "Use the UMS [USB Mass Storage]",
162 "<USB_controller> [<devtype>] <devnum> e.g. ums 0 mmc 0\n"
163 " devtype defaults to mmc"