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6bed7ce569
This patch extends dfu code to support transmission with -R switch specified at dfu-util. When -R is specified, the extra USB_REQ_DFU_DETACH request is sent after successful data transmission. Then dfu resources are released and reset command is issued. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
85 lines
1.7 KiB
C
85 lines
1.7 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 <command.h>
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#include <malloc.h>
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#include <dfu.h>
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#include <asm/errno.h>
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#include <g_dnl.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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const char *str_env;
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char *s = "dfu";
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int ret, i = 0;
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char *env_bkp;
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if (argc < 3)
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return CMD_RET_USAGE;
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str_env = getenv("dfu_alt_info");
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if (str_env == NULL) {
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printf("%s: \"dfu_alt_info\" env variable not defined!\n",
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__func__);
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return CMD_RET_FAILURE;
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}
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env_bkp = strdup(str_env);
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ret = dfu_config_entities(env_bkp, argv[1],
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(int)simple_strtoul(argv[2], NULL, 10));
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if (ret)
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return CMD_RET_FAILURE;
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if (argc > 3 && strcmp(argv[3], "list") == 0) {
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dfu_show_entities();
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goto done;
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}
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#ifdef CONFIG_TRATS
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board_usb_init();
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#endif
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g_dnl_register(s);
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while (1) {
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if (dfu_reset())
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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 == 10)
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goto exit;
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if (ctrlc())
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goto exit;
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usb_gadget_handle_interrupts();
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}
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exit:
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g_dnl_unregister();
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done:
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dfu_free_entities();
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free(env_bkp);
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if (dfu_reset())
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run_command("reset", 0);
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return CMD_RET_SUCCESS;
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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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"<interface> <dev> [list]\n"
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" - device firmware upgrade on a device <dev>\n"
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" attached to interface <interface>\n"
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" [list] - list available alt settings"
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);
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