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0a9ac5cb5e
trigger watchdog before calling usb_gadget_handle_interrupts() This prevents board resets when calling dfu command on boards which have a watchdog. Signed-off-by: Heiko Schocher <hs@denx.de> [ Reedition by Lukasz Majewski <l.majewski@samsung.com> to apply to v2014.04 release ]
93 lines
2.0 KiB
C
93 lines
2.0 KiB
C
/*
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* cmd_dfu.c -- dfu command
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*
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* Copyright (C) 2012 Samsung Electronics
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* authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <dfu.h>
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#include <g_dnl.h>
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#include <usb.h>
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static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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bool dfu_reset = false;
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if (argc < 4)
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return CMD_RET_USAGE;
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char *usb_controller = argv[1];
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char *interface = argv[2];
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char *devstring = argv[3];
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int ret, i = 0;
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ret = dfu_init_env_entities(interface, devstring);
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if (ret)
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goto done;
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ret = CMD_RET_SUCCESS;
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if (argc > 4 && strcmp(argv[4], "list") == 0) {
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dfu_show_entities();
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goto done;
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}
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int controller_index = simple_strtoul(usb_controller, NULL, 0);
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board_usb_init(controller_index, USB_INIT_DEVICE);
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g_dnl_clear_detach();
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g_dnl_register("usb_dnl_dfu");
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while (1) {
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if (g_dnl_detach()) {
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/*
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* Check if USB bus reset is performed after detach,
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* which indicates that -R switch has been passed to
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* dfu-util. In this case reboot the device
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*/
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if (dfu_usb_get_reset()) {
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dfu_reset = true;
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goto exit;
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}
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/*
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* This extra number of usb_gadget_handle_interrupts()
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* calls is necessary to assure correct transmission
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* completion with dfu-util
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*/
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if (++i == 10000)
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goto exit;
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}
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if (ctrlc())
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goto exit;
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WATCHDOG_RESET();
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usb_gadget_handle_interrupts(controller_index);
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}
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exit:
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g_dnl_unregister();
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board_usb_cleanup(controller_index, USB_INIT_DEVICE);
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done:
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dfu_free_entities();
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if (dfu_reset)
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run_command("reset", 0);
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g_dnl_clear_detach();
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return ret;
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}
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U_BOOT_CMD(dfu, CONFIG_SYS_MAXARGS, 1, do_dfu,
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"Device Firmware Upgrade",
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"<USB_controller> <interface> <dev> [list]\n"
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" - device firmware upgrade via <USB_controller>\n"
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" on device <dev>, attached to interface\n"
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" <interface>\n"
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" [list] - list available alt settings\n"
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);
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