cmd/rockusb.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017 Eddie Cai <eddie.cai.linux@gmail.com>
   4  */
   5
   6 #include <common.h>
   7 #include <command.h>
   8 #include <console.h>
   9 #include <g_dnl.h>
  10 #include <usb.h>
  11 #include <asm/arch/f_rockusb.h>
  12
  13 static int do_rockusb(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  14 {
  15         int controller_index, dev_index;
  16         char *usb_controller;
  17         char *devtype;
  18         char *devnum;
  19         int ret;
  20
  21         if (argc < 2)
  22                 return CMD_RET_USAGE;
  23
  24         usb_controller = argv[1];
  25         controller_index = simple_strtoul(usb_controller, NULL, 0);
  26
  27         if (argc >= 4) {
  28                 devtype = argv[2];
  29                 devnum  = argv[3];
  30         } else {
  31                 return CMD_RET_USAGE;
  32         }
  33         dev_index = simple_strtoul(devnum, NULL, 0);
  34         rockusb_dev_init(devtype, dev_index);
  35
  36         ret = usb_gadget_initialize(controller_index);
  37         if (ret) {
  38                 printf("USB init failed: %d\n", ret);
  39                 return CMD_RET_FAILURE;
  40         }
  41
  42         g_dnl_clear_detach();
  43         ret = g_dnl_register("usb_dnl_rockusb");
  44         if (ret)
  45                 return CMD_RET_FAILURE;
  46
  47         if (!g_dnl_board_usb_cable_connected()) {
  48                 puts("\rUSB cable not detected, Command exit.\n");
  49                 ret = CMD_RET_FAILURE;
  50                 goto exit;
  51         }
  52
  53         while (1) {
  54                 if (g_dnl_detach())
  55                         break;
  56                 if (ctrlc())
  57                         break;
  58                 usb_gadget_handle_interrupts(controller_index);
  59         }
  60         ret = CMD_RET_SUCCESS;
  61
  62 exit:
  63         g_dnl_unregister();
  64         g_dnl_clear_detach();
  65         usb_gadget_release(controller_index);
  66
  67         return ret;
  68 }
  69
  70 U_BOOT_CMD(rockusb, 4, 1, do_rockusb,
  71            "use the rockusb protocol",
  72            "<USB_controller> <devtype> <dev[:part]>  e.g. rockusb 0 mmc 0\n"
  73 );