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;
22 int dev_num = block_dev->dev;
24 return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
27 static int ums_write_sector(struct ums *ums_dev,
28 ulong start, lbaint_t blkcnt, const void *buf)
30 block_dev_desc_t *block_dev = ums_dev->block_dev;
31 lbaint_t blkstart = start + ums_dev->start_sector;
32 int dev_num = block_dev->dev;
34 return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
37 static struct ums ums_dev = {
38 .read_sector = ums_read_sector,
39 .write_sector = ums_write_sector,
43 struct ums *ums_init(const char *devtype, const char *devnum)
45 block_dev_desc_t *block_dev;
48 ret = get_device(devtype, devnum, &block_dev);
52 /* f_mass_storage.c assumes SECTOR_SIZE sectors */
53 if (block_dev->blksz != SECTOR_SIZE)
56 ums_dev.block_dev = block_dev;
57 ums_dev.start_sector = 0;
58 ums_dev.num_sectors = block_dev->lba;
60 printf("UMS: disk start sector: %#x, count: %#x\n",
61 ums_dev.start_sector, ums_dev.num_sectors);
66 int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
67 int argc, char * const argv[])
69 const char *usb_controller;
73 unsigned int controller_index;
75 int cable_ready_timeout __maybe_unused;
80 usb_controller = argv[1];
89 ums = ums_init(devtype, devnum);
91 return CMD_RET_FAILURE;
93 controller_index = (unsigned int)(simple_strtoul(
94 usb_controller, NULL, 0));
95 if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
96 error("Couldn't init USB controller.");
97 return CMD_RET_FAILURE;
102 error("fsg_init failed");
103 return CMD_RET_FAILURE;
106 rc = g_dnl_register("usb_dnl_ums");
108 error("g_dnl_register failed");
109 return CMD_RET_FAILURE;
112 /* Timeout unit: seconds */
113 cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
115 if (!g_dnl_board_usb_cable_connected()) {
117 * Won't execute if we don't know whether the cable is
120 puts("Please connect USB cable.\n");
122 while (!g_dnl_board_usb_cable_connected()) {
124 puts("\rCTRL+C - Operation aborted.\n");
127 if (!cable_ready_timeout) {
128 puts("\rUSB cable not detected.\n" \
133 printf("\rAuto exit in: %.2d s.", cable_ready_timeout);
135 cable_ready_timeout--;
141 usb_gadget_handle_interrupts(controller_index);
143 rc = fsg_main_thread(NULL);
145 /* Check I/O error */
147 printf("\rCheck USB cable connection\n");
151 printf("\rCTRL+C - Operation aborted\n");
158 board_usb_cleanup(controller_index, USB_INIT_DEVICE);
159 return CMD_RET_SUCCESS;
162 U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
163 "Use the UMS [USB Mass Storage]",
164 "<USB_controller> [<devtype>] <devnum> e.g. ums 0 mmc 0\n"
165 " devtype defaults to mmc"