mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 01:38:22 +00:00
f234566ef0
This function is a variant of dfu_write_by_name() and takes a DFU alt setting number for dfu configuration. It will be utilised to implement UEFI capsule management protocol for raw image in a later commit. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Tom Rini <trini@konsulko.com>
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
// 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;
|
|
}
|