1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2016
3*4882a593Smuzhiyun * Texas Instruments, <www.ti.com>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Ravi B <ravibabu@ti.com>
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun #include <common.h>
10*4882a593Smuzhiyun #include <spl.h>
11*4882a593Smuzhiyun #include <linux/compiler.h>
12*4882a593Smuzhiyun #include <errno.h>
13*4882a593Smuzhiyun #include <watchdog.h>
14*4882a593Smuzhiyun #include <console.h>
15*4882a593Smuzhiyun #include <g_dnl.h>
16*4882a593Smuzhiyun #include <usb.h>
17*4882a593Smuzhiyun #include <dfu.h>
18*4882a593Smuzhiyun #include <environment.h>
19*4882a593Smuzhiyun
run_dfu(int usb_index,char * interface,char * devstring)20*4882a593Smuzhiyun static int run_dfu(int usb_index, char *interface, char *devstring)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun int ret;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun ret = dfu_init_env_entities(interface, devstring);
25*4882a593Smuzhiyun if (ret) {
26*4882a593Smuzhiyun dfu_free_entities();
27*4882a593Smuzhiyun goto exit;
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun run_usb_dnl_gadget(usb_index, "usb_dnl_dfu");
31*4882a593Smuzhiyun exit:
32*4882a593Smuzhiyun dfu_free_entities();
33*4882a593Smuzhiyun return ret;
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun
spl_dfu_cmd(int usbctrl,char * dfu_alt_info,char * interface,char * devstr)36*4882a593Smuzhiyun int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun char *str_env;
39*4882a593Smuzhiyun int ret;
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun /* set default environment */
42*4882a593Smuzhiyun set_default_env(0);
43*4882a593Smuzhiyun str_env = env_get(dfu_alt_info);
44*4882a593Smuzhiyun if (!str_env) {
45*4882a593Smuzhiyun pr_err("\"dfu_alt_info\" env variable not defined!\n");
46*4882a593Smuzhiyun return -EINVAL;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun ret = env_set("dfu_alt_info", str_env);
50*4882a593Smuzhiyun if (ret) {
51*4882a593Smuzhiyun pr_err("unable to set env variable \"dfu_alt_info\"!\n");
52*4882a593Smuzhiyun return -EINVAL;
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun /* invoke dfu command */
56*4882a593Smuzhiyun return run_dfu(usbctrl, interface, devstr);
57*4882a593Smuzhiyun }
58