projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 05341a87 R |
1 | /* |
| 2 | * dfu.c -- dfu command | |
| 3 | * | |
| 4 | * Copyright (C) 2015 | |
| 5 | * Lukasz Majewski <[email protected]> | |
| 6 | * | |
| 7 | * Copyright (C) 2012 Samsung Electronics | |
| 8 | * authors: Andrzej Pietrasiewicz <[email protected]> | |
| 9 | * Lukasz Majewski <[email protected]> | |
| 10 | * | |
| 11 | * SPDX-License-Identifier: GPL-2.0+ | |
| 12 | */ | |
| 13 | ||
| 14 | #include <common.h> | |
| 15 | #include <watchdog.h> | |
| 16 | #include <dfu.h> | |
| 17 | #include <console.h> | |
| 18 | #include <g_dnl.h> | |
| 19 | #include <usb.h> | |
| 20 | #include <net.h> | |
| 21 | ||
| 22 | int run_usb_dnl_gadget(int usbctrl_index, char *usb_dnl_gadget) | |
| 23 | { | |
| 24 | bool dfu_reset = false; | |
| 25 | int ret, i = 0; | |
| 26 | ||
| dbdc2744 MS |
27 | ret = board_usb_init(usbctrl_index, USB_INIT_DEVICE); |
| 28 | if (ret) { | |
| 29 | error("board usb init failed\n"); | |
| 30 | return CMD_RET_FAILURE; | |
| 31 | } | |
| 05341a87 | 32 | g_dnl_clear_detach(); |
| 54a708ca SM |
33 | ret = g_dnl_register(usb_dnl_gadget); |
| 34 | if (ret) { | |
| 35 | error("g_dnl_register failed"); | |
| 36 | return CMD_RET_FAILURE; | |
| 37 | } | |
| 38 | ||
| 05341a87 R |
39 | while (1) { |
| 40 | if (g_dnl_detach()) { | |
| 41 | /* | |
| 42 | * Check if USB bus reset is performed after detach, | |
| 43 | * which indicates that -R switch has been passed to | |
| 44 | * dfu-util. In this case reboot the device | |
| 45 | */ | |
| 46 | if (dfu_usb_get_reset()) { | |
| 47 | dfu_reset = true; | |
| 48 | goto exit; | |
| 49 | } | |
| 50 | ||
| 51 | /* | |
| 52 | * This extra number of usb_gadget_handle_interrupts() | |
| 53 | * calls is necessary to assure correct transmission | |
| 54 | * completion with dfu-util | |
| 55 | */ | |
| 56 | if (++i == 10000) | |
| 57 | goto exit; | |
| 58 | } | |
| 59 | ||
| 60 | if (ctrlc()) | |
| 61 | goto exit; | |
| 62 | ||
| 63 | if (dfu_get_defer_flush()) { | |
| 64 | /* | |
| 65 | * Call to usb_gadget_handle_interrupts() is necessary | |
| 66 | * to act on ZLP OUT transaction from HOST PC after | |
| 67 | * transmitting the whole file. | |
| 68 | * | |
| 69 | * If this ZLP OUT packet is NAK'ed, the HOST libusb | |
| 70 | * function fails after timeout (by default it is set to | |
| 71 | * 5 seconds). In such situation the dfu-util program | |
| 72 | * exits with error message. | |
| 73 | */ | |
| 74 | usb_gadget_handle_interrupts(usbctrl_index); | |
| 75 | ret = dfu_flush(dfu_get_defer_flush(), NULL, 0, 0); | |
| 76 | dfu_set_defer_flush(NULL); | |
| 77 | if (ret) { | |
| 78 | error("Deferred dfu_flush() failed!"); | |
| 79 | goto exit; | |
| 80 | } | |
| 81 | } | |
| 82 | ||
| 83 | WATCHDOG_RESET(); | |
| 84 | usb_gadget_handle_interrupts(usbctrl_index); | |
| 85 | } | |
| 86 | exit: | |
| 87 | g_dnl_unregister(); | |
| 88 | board_usb_cleanup(usbctrl_index, USB_INIT_DEVICE); | |
| 89 | ||
| 90 | if (dfu_reset) | |
| 66928afb | 91 | do_reset(NULL, 0, 0, NULL); |
| 05341a87 R |
92 | |
| 93 | g_dnl_clear_detach(); | |
| 94 | ||
| 95 | return ret; | |
| 96 | } |