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-rockchip/f_rockusb.h>
  12
  13 static int do_rockusb(struct cmd_tbl *cmdtp, int flag, int argc,
  14                       char *const argv[])
  15 {
  16         int controller_index, dev_index;
  17         char *usb_controller;
  18         struct udevice *udc;
  19         char *devtype;
  20         char *devnum;
  21         int ret;
  22
  23         if (argc < 2)
  24                 return CMD_RET_USAGE;
  25
  26         usb_controller = argv[1];
  27         controller_index = simple_strtoul(usb_controller, NULL, 0);
  28
  29         if (argc >= 4) {
  30                 devtype = argv[2];
  31                 devnum  = argv[3];
  32         } else {
  33                 return CMD_RET_USAGE;
  34         }
  35         dev_index = simple_strtoul(devnum, NULL, 0);
  36         rockusb_dev_init(devtype, dev_index);
  37
  38         ret = udc_device_get_by_index(controller_index, &udc);
  39         if (ret) {
  40                 printf("USB init failed: %d\n", ret);
  41                 return CMD_RET_FAILURE;
  42         }
  43
  44         g_dnl_clear_detach();
  45         ret = g_dnl_register("usb_dnl_rockusb");
  46         if (ret)
  47                 return CMD_RET_FAILURE;
  48
  49         if (!g_dnl_board_usb_cable_connected()) {
  50                 puts("\rUSB cable not detected, Command exit.\n");
  51                 ret = CMD_RET_FAILURE;
  52                 goto exit;
  53         }
  54
  55         while (1) {
  56                 if (g_dnl_detach())
  57                         break;
  58                 if (ctrlc())
  59                         break;
  60                 dm_usb_gadget_handle_interrupts(udc);
  61         }
  62         ret = CMD_RET_SUCCESS;
  63
  64 exit:
  65         g_dnl_unregister();
  66         g_dnl_clear_detach();
  67         udc_device_put(udc);
  68
  69         return ret;
  70 }
  71
  72 U_BOOT_CMD(rockusb, 4, 1, do_rockusb,
  73            "use the rockusb protocol",
  74            "<USB_controller> <devtype> <dev[:part]>  e.g. rockusb 0 mmc 0\n"
  75 );