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 <[email protected]>
   6  * All rights reserved.
   7  */
   8
   9 #include <command.h>
  10 #include <thor.h>
  11 #include <dfu.h>
  12 #include <g_dnl.h>
  13 #include <usb.h>
  14 #include <linux/printk.h>
  15
  16 int do_thor_down(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  17 {
  18         char *interface, *devstring;
  19         int controller_index;
  20         struct udevice *udc;
  21         int ret;
  22
  23         if (argc < 4)
  24                 return CMD_RET_USAGE;
  25
  26         puts("TIZEN \"THOR\" Downloader\n");
  27
  28         interface = argv[2];
  29         devstring = argv[3];
  30
  31         ret = dfu_init_env_entities(interface, devstring);
  32         if (ret)
  33                 goto done;
  34
  35         controller_index = simple_strtoul(argv[1], NULL, 0);
  36         ret = udc_device_get_by_index(controller_index, &udc);
  37         if (ret) {
  38                 pr_err("USB init failed: %d\n", ret);
  39                 ret = CMD_RET_FAILURE;
  40                 goto exit;
  41         }
  42
  43         ret = g_dnl_register("usb_dnl_thor");
  44         if (ret) {
  45                 pr_err("g_dnl_register failed %d\n", ret);
  46                 ret = CMD_RET_FAILURE;
  47                 goto exit;
  48         }
  49
  50         ret = thor_init(udc);
  51         if (ret) {
  52                 pr_err("THOR DOWNLOAD failed: %d\n", ret);
  53                 ret = CMD_RET_FAILURE;
  54                 goto exit;
  55         }
  56
  57         do {
  58                 ret = thor_handle(udc);
  59                 if (ret == THOR_DFU_REINIT_NEEDED) {
  60                         dfu_free_entities();
  61                         ret = dfu_init_env_entities(interface, devstring);
  62                 }
  63                 if (ret) {
  64                         pr_err("THOR failed: %d\n", ret);
  65                         ret = CMD_RET_FAILURE;
  66                         goto exit;
  67                 }
  68         } while (ret == 0);
  69 exit:
  70         g_dnl_unregister();
  71         udc_device_put(udc);
  72 done:
  73         dfu_free_entities();
  74
  75         return ret;
  76 }
  77
  78 U_BOOT_CMD(thordown, CONFIG_SYS_MAXARGS, 1, do_thor_down,
  79            "TIZEN \"THOR\" downloader",
  80            "<USB_controller> <interface> <dev>\n"
  81            "  - device software upgrade via LTHOR TIZEN download\n"
  82            "    program via <USB_controller> on device <dev>,\n"
  83            "    attached to interface <interface>\n"
  84 );