Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / common / cmd_usb_mass_storage.c

diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c
new file mode 100644 (file)
index 0000000..33a4715
--- /dev/null
+++ b/common/cmd_usb_mass_storage.c
@@ -0,0 +1,73 @@
+/*
+ * 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_mass_storage.h>
+
+int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
+                              int argc, char * const argv[])
+{
+       char *ep;
+       unsigned int dev_num = 0, offset = 0, part_size = 0;
+       int rc;
+
+       struct ums_board_info *ums_info;
+       static char *s = "ums";
+
+       if (argc < 2) {
+               printf("usage: ums <dev> - e.g. ums 0\n");
+               return 0;
+       }
+
+       dev_num = (int)simple_strtoul(argv[1], &ep, 16);
+
+       if (dev_num) {
+               puts("\nSet eMMC device to 0! - e.g. ums 0\n");
+               goto fail;
+       }
+
+       board_usb_init();
+       ums_info = board_ums_init(dev_num, offset, part_size);
+
+       if (!ums_info) {
+               printf("MMC: %d -> NOT available\n", dev_num);
+               goto fail;
+       }
+       rc = fsg_init(ums_info);
+       if (rc) {
+               printf("cmd ums: fsg_init failed\n");
+               goto fail;
+       }
+
+       g_dnl_register(s);
+
+       while (1) {
+               /* Handle control-c and timeouts */
+               if (ctrlc()) {
+                       printf("The remote end did not respond in time.\n");
+                       goto exit;
+               }
+               usb_gadget_handle_interrupts();
+               /* Check if USB cable has been detached */
+               if (fsg_main_thread(NULL) == EIO)
+                       goto exit;
+       }
+exit:
+       g_dnl_unregister();
+       return 0;
+
+fail:
+       return -1;
+}
+
+U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage,
+       "Use the UMS [User Mass Storage]",
+       "ums - User Mass Storage Gadget"
+);