cmd/thordown.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * cmd_thordown.c -- USB TIZEN "THOR" Downloader gadget
   4  *
   5  * Copyright (C) 2013 Lukasz Majewski <l.majewski@samsung.com>
   6  * All rights reserved.
   7  */
   8
   9 #include <common.h>
  10 #include <command.h>
  11 #include <thor.h>
  12 #include <dfu.h>
  13 #include <g_dnl.h>
  14 #include <usb.h>
  15
  16 int do_thor_down(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  17 {
  18         if (argc < 4)
  19                 return CMD_RET_USAGE;
  20
  21         char *usb_controller = argv[1];
  22         char *interface = argv[2];
  23         char *devstring = argv[3];
  24
  25         int ret;
  26
  27         puts("TIZEN \"THOR\" Downloader\n");
  28
  29         ret = dfu_init_env_entities(interface, devstring);
  30         if (ret)
  31                 goto done;
  32
  33         int controller_index = simple_strtoul(usb_controller, NULL, 0);
  34         ret = usb_gadget_initialize(controller_index);
  35         if (ret) {
  36                 pr_err("USB init failed: %d\n", ret);
  37                 ret = CMD_RET_FAILURE;
  38                 goto exit;
  39         }
  40
  41         ret = g_dnl_register("usb_dnl_thor");
  42         if (ret) {
  43                 pr_err("g_dnl_register failed %d\n", ret);
  44                 ret = CMD_RET_FAILURE;
  45                 goto exit;
  46         }
  47
  48         ret = thor_init();
  49         if (ret) {
  50                 pr_err("THOR DOWNLOAD failed: %d\n", ret);
  51                 ret = CMD_RET_FAILURE;
  52                 goto exit;
  53         }
  54
  55         do {
  56                 ret = thor_handle();
  57                 if (ret == THOR_DFU_REINIT_NEEDED) {
  58                         dfu_free_entities();
  59                         ret = dfu_init_env_entities(interface, devstring);
  60                 }
  61                 if (ret) {
  62                         pr_err("THOR failed: %d\n", ret);
  63                         ret = CMD_RET_FAILURE;
  64                         goto exit;
  65                 }
  66         } while (ret == 0);
  67 exit:
  68         g_dnl_unregister();
  69         usb_gadget_release(controller_index);
  70 done:
  71         dfu_free_entities();
  72
  73         return ret;
  74 }
  75
  76 U_BOOT_CMD(thordown, CONFIG_SYS_MAXARGS, 1, do_thor_down,
  77            "TIZEN \"THOR\" downloader",
  78            "<USB_controller> <interface> <dev>\n"
  79            "  - device software upgrade via LTHOR TIZEN download\n"
  80            "    program via <USB_controller> on device <dev>,\n"
  81            "    attached to interface <interface>\n"
  82 );