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