mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
dbdc2744ee
board_usb_init() can failed and error should be handled properly. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
/*
|
|
* dfu.c -- dfu command
|
|
*
|
|
* Copyright (C) 2015
|
|
* Lukasz Majewski <l.majewski@majess.pl>
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
|
|
* Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <watchdog.h>
|
|
#include <dfu.h>
|
|
#include <console.h>
|
|
#include <g_dnl.h>
|
|
#include <usb.h>
|
|
#include <net.h>
|
|
|
|
int run_usb_dnl_gadget(int usbctrl_index, char *usb_dnl_gadget)
|
|
{
|
|
bool dfu_reset = false;
|
|
int ret, i = 0;
|
|
|
|
ret = board_usb_init(usbctrl_index, USB_INIT_DEVICE);
|
|
if (ret) {
|
|
error("board usb init failed\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
g_dnl_clear_detach();
|
|
ret = g_dnl_register(usb_dnl_gadget);
|
|
if (ret) {
|
|
error("g_dnl_register failed");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
while (1) {
|
|
if (g_dnl_detach()) {
|
|
/*
|
|
* Check if USB bus reset is performed after detach,
|
|
* which indicates that -R switch has been passed to
|
|
* dfu-util. In this case reboot the device
|
|
*/
|
|
if (dfu_usb_get_reset()) {
|
|
dfu_reset = true;
|
|
goto exit;
|
|
}
|
|
|
|
/*
|
|
* This extra number of usb_gadget_handle_interrupts()
|
|
* calls is necessary to assure correct transmission
|
|
* completion with dfu-util
|
|
*/
|
|
if (++i == 10000)
|
|
goto exit;
|
|
}
|
|
|
|
if (ctrlc())
|
|
goto exit;
|
|
|
|
if (dfu_get_defer_flush()) {
|
|
/*
|
|
* Call to usb_gadget_handle_interrupts() is necessary
|
|
* to act on ZLP OUT transaction from HOST PC after
|
|
* transmitting the whole file.
|
|
*
|
|
* If this ZLP OUT packet is NAK'ed, the HOST libusb
|
|
* function fails after timeout (by default it is set to
|
|
* 5 seconds). In such situation the dfu-util program
|
|
* exits with error message.
|
|
*/
|
|
usb_gadget_handle_interrupts(usbctrl_index);
|
|
ret = dfu_flush(dfu_get_defer_flush(), NULL, 0, 0);
|
|
dfu_set_defer_flush(NULL);
|
|
if (ret) {
|
|
error("Deferred dfu_flush() failed!");
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
WATCHDOG_RESET();
|
|
usb_gadget_handle_interrupts(usbctrl_index);
|
|
}
|
|
exit:
|
|
g_dnl_unregister();
|
|
board_usb_cleanup(usbctrl_index, USB_INIT_DEVICE);
|
|
|
|
if (dfu_reset)
|
|
run_command("reset", 0);
|
|
|
|
g_dnl_clear_detach();
|
|
|
|
return ret;
|
|
}
|