123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2015
- * Lukasz Majewski <l.majewski@majess.pl>
- */
- #include <common.h>
- #include <log.h>
- #include <malloc.h>
- #include <errno.h>
- #include <dfu.h>
- /**
- * dfu_write_by_name() - write data to DFU medium
- * @dfu_entity_name: Name of DFU entity to write
- * @addr: Address of data buffer to write
- * @len: Number of bytes
- * @interface: Destination DFU medium (e.g. "mmc")
- * @devstring: Instance number of destination DFU medium (e.g. "1")
- *
- * This function is storing data received on DFU supported medium which
- * is specified by @dfu_entity_name.
- *
- * Return: 0 - on success, error code - otherwise
- */
- int dfu_write_by_name(char *dfu_entity_name, void *addr,
- unsigned int len, char *interface, char *devstring)
- {
- char *s, *sb;
- int alt_setting_num, ret;
- struct dfu_entity *dfu;
- debug("%s: name: %s addr: 0x%p len: %d device: %s:%s\n", __func__,
- dfu_entity_name, addr, len, interface, devstring);
- ret = dfu_init_env_entities(interface, devstring);
- if (ret)
- goto done;
- /*
- * We need to copy name pointed by *dfu_entity_name since this text
- * is the integral part of the FDT image.
- * Any implicit modification (i.e. done by strsep()) will corrupt
- * the FDT image and prevent other images to be stored.
- */
- s = strdup(dfu_entity_name);
- sb = s;
- if (!s) {
- ret = -ENOMEM;
- goto done;
- }
- strsep(&s, "@");
- debug("%s: image name: %s strlen: %zd\n", __func__, sb, strlen(sb));
- alt_setting_num = dfu_get_alt(sb);
- free(sb);
- if (alt_setting_num < 0) {
- pr_err("Alt setting [%d] to write not found!",
- alt_setting_num);
- ret = -ENODEV;
- goto done;
- }
- dfu = dfu_get_entity(alt_setting_num);
- if (!dfu) {
- pr_err("DFU entity for alt: %d not found!", alt_setting_num);
- ret = -ENODEV;
- goto done;
- }
- ret = dfu_write_from_mem_addr(dfu, (void *)addr, len);
- done:
- dfu_free_entities();
- return ret;
- }
- /**
- * dfu_write_by_alt() - write data to DFU medium
- * @dfu_alt_num: DFU alt setting number
- * @addr: Address of data buffer to write
- * @len: Number of bytes
- * @interface: Destination DFU medium (e.g. "mmc")
- * @devstring: Instance number of destination DFU medium (e.g. "1")
- *
- * This function is storing data received on DFU supported medium which
- * is specified by @dfu_alt_name.
- *
- * Return: 0 - on success, error code - otherwise
- */
- int dfu_write_by_alt(int dfu_alt_num, void *addr, unsigned int len,
- char *interface, char *devstring)
- {
- struct dfu_entity *dfu;
- int ret;
- debug("%s: alt: %d addr: 0x%p len: %d device: %s:%s\n", __func__,
- dfu_alt_num, addr, len, interface, devstring);
- ret = dfu_init_env_entities(interface, devstring);
- if (ret)
- goto done;
- if (dfu_alt_num < 0) {
- pr_err("Invalid alt number: %d", dfu_alt_num);
- ret = -ENODEV;
- goto done;
- }
- dfu = dfu_get_entity(dfu_alt_num);
- if (!dfu) {
- pr_err("DFU entity for alt: %d not found!", dfu_alt_num);
- ret = -ENODEV;
- goto done;
- }
- ret = dfu_write_from_mem_addr(dfu, (void *)(uintptr_t)addr, len);
- done:
- dfu_free_entities();
- return ret;
- }
|