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board: ti: beagle_x15: added USB initializtion code
[people/ms/u-boot.git] / common / cmd_dfu.c
1 /*
2 * cmd_dfu.c -- dfu command
3 *
4 * Copyright (C) 2012 Samsung Electronics
5 * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
6 * Lukasz Majewski <l.majewski@samsung.com>
7 *
8 * SPDX-License-Identifier: GPL-2.0+
9 */
10
11 #include <common.h>
12 #include <watchdog.h>
13 #include <dfu.h>
14 #include <g_dnl.h>
15 #include <usb.h>
16
17 static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
18 {
19 bool dfu_reset = false;
20
21 if (argc < 4)
22 return CMD_RET_USAGE;
23
24 char *usb_controller = argv[1];
25 char *interface = argv[2];
26 char *devstring = argv[3];
27
28 int ret, i = 0;
29
30 ret = dfu_init_env_entities(interface, devstring);
31 if (ret)
32 goto done;
33
34 ret = CMD_RET_SUCCESS;
35 if (argc > 4 && strcmp(argv[4], "list") == 0) {
36 dfu_show_entities();
37 goto done;
38 }
39
40 int controller_index = simple_strtoul(usb_controller, NULL, 0);
41 board_usb_init(controller_index, USB_INIT_DEVICE);
42 g_dnl_clear_detach();
43 g_dnl_register("usb_dnl_dfu");
44 while (1) {
45 if (g_dnl_detach()) {
46 /*
47 * Check if USB bus reset is performed after detach,
48 * which indicates that -R switch has been passed to
49 * dfu-util. In this case reboot the device
50 */
51 if (dfu_usb_get_reset()) {
52 dfu_reset = true;
53 goto exit;
54 }
55
56 /*
57 * This extra number of usb_gadget_handle_interrupts()
58 * calls is necessary to assure correct transmission
59 * completion with dfu-util
60 */
61 if (++i == 10000)
62 goto exit;
63 }
64
65 if (ctrlc())
66 goto exit;
67
68 WATCHDOG_RESET();
69 usb_gadget_handle_interrupts(controller_index);
70 }
71 exit:
72 g_dnl_unregister();
73 board_usb_cleanup(controller_index, USB_INIT_DEVICE);
74 done:
75 dfu_free_entities();
76
77 if (dfu_reset)
78 run_command("reset", 0);
79
80 g_dnl_clear_detach();
81
82 return ret;
83 }
84
85 U_BOOT_CMD(dfu, CONFIG_SYS_MAXARGS, 1, do_dfu,
86 "Device Firmware Upgrade",
87 "<USB_controller> <interface> <dev> [list]\n"
88 " - device firmware upgrade via <USB_controller>\n"
89 " on device <dev>, attached to interface\n"
90 " <interface>\n"
91 " [list] - list available alt settings\n"
92 );