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/*
* Copyright (C) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <errno.h>
#include <common.h>
#include <command.h>
#include <g_dnl.h>
#include <usb.h>
#include <usb_mass_storage.h>
int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
if (argc < 3)
return CMD_RET_USAGE;
const char *usb_controller = argv[1];
const char *mmc_devstring = argv[2];
unsigned int dev_num = simple_strtoul(mmc_devstring, NULL, 0);
struct ums *ums = ums_init(dev_num);
if (!ums)
return CMD_RET_FAILURE;
unsigned int controller_index = (unsigned int)(simple_strtoul(
usb_controller, NULL, 0));
if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
error("Couldn't init USB controller.");
return CMD_RET_FAILURE;
}
int rc = fsg_init(ums);
if (rc) {
error("fsg_init failed");
return CMD_RET_FAILURE;
}
g_dnl_register("usb_dnl_ums");
/* Timeout unit: seconds */
int cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
if (!g_dnl_board_usb_cable_connected()) {
/*
* Won't execute if we don't know whether the cable is
* connected.
*/
puts("Please connect USB cable.\n");
while (!g_dnl_board_usb_cable_connected()) {
if (ctrlc()) {
puts("\rCTRL+C - Operation aborted.\n");
goto exit;
}
if (!cable_ready_timeout) {
puts("\rUSB cable not detected.\n" \
"Command exit.\n");
goto exit;
}
printf("\rAuto exit in: %.2d s.", cable_ready_timeout);
mdelay(1000);
cable_ready_timeout--;
}
puts("\r\n");
}
while (1) {
usb_gadget_handle_interrupts();
rc = fsg_main_thread(NULL);
if (rc) {
/* Check I/O error */
if (rc == -EIO)
printf("\rCheck USB cable connection\n");
/* Check CTRL+C */
if (rc == -EPIPE)
printf("\rCTRL+C - Operation aborted\n");
goto exit;
}
}
exit:
g_dnl_unregister();
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage,
"Use the UMS [User Mass Storage]",
"ums <USB_controller> <mmc_dev> e.g. ums 0 0"
);
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