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