1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2015
3*4882a593Smuzhiyun * Lukasz Majewski <l.majewski@majess.pl>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <malloc.h>
10*4882a593Smuzhiyun #include <errno.h>
11*4882a593Smuzhiyun #include <dfu.h>
12*4882a593Smuzhiyun
dfu_tftp_write(char * dfu_entity_name,unsigned int addr,unsigned int len,char * interface,char * devstring)13*4882a593Smuzhiyun int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
14*4882a593Smuzhiyun char *interface, char *devstring)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun char *s, *sb;
17*4882a593Smuzhiyun int alt_setting_num, ret;
18*4882a593Smuzhiyun struct dfu_entity *dfu;
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun debug("%s: name: %s addr: 0x%x len: %d device: %s:%s\n", __func__,
21*4882a593Smuzhiyun dfu_entity_name, addr, len, interface, devstring);
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun ret = dfu_init_env_entities(interface, devstring);
24*4882a593Smuzhiyun if (ret)
25*4882a593Smuzhiyun goto done;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun /*
28*4882a593Smuzhiyun * We need to copy name pointed by *dfu_entity_name since this text
29*4882a593Smuzhiyun * is the integral part of the FDT image.
30*4882a593Smuzhiyun * Any implicit modification (i.e. done by strsep()) will corrupt
31*4882a593Smuzhiyun * the FDT image and prevent other images to be stored.
32*4882a593Smuzhiyun */
33*4882a593Smuzhiyun s = strdup(dfu_entity_name);
34*4882a593Smuzhiyun sb = s;
35*4882a593Smuzhiyun if (!s) {
36*4882a593Smuzhiyun ret = -ENOMEM;
37*4882a593Smuzhiyun goto done;
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun strsep(&s, "@");
41*4882a593Smuzhiyun debug("%s: image name: %s strlen: %d\n", __func__, sb, strlen(sb));
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun alt_setting_num = dfu_get_alt(sb);
44*4882a593Smuzhiyun free(sb);
45*4882a593Smuzhiyun if (alt_setting_num < 0) {
46*4882a593Smuzhiyun pr_err("Alt setting [%d] to write not found!",
47*4882a593Smuzhiyun alt_setting_num);
48*4882a593Smuzhiyun ret = -ENODEV;
49*4882a593Smuzhiyun goto done;
50*4882a593Smuzhiyun }
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun dfu = dfu_get_entity(alt_setting_num);
53*4882a593Smuzhiyun if (!dfu) {
54*4882a593Smuzhiyun pr_err("DFU entity for alt: %d not found!", alt_setting_num);
55*4882a593Smuzhiyun ret = -ENODEV;
56*4882a593Smuzhiyun goto done;
57*4882a593Smuzhiyun }
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun ret = dfu_write_from_mem_addr(dfu, (void *)addr, len);
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun done:
62*4882a593Smuzhiyun dfu_free_entities();
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun return ret;
65*4882a593Smuzhiyun }
66