mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-16 01:24:27 +00:00
09d40e0e08
Enforce full include path for includes. Deprecate old paths.
The following folders inside include/lib have been left unchanged:
- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}
The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).
For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").
This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.
Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.
Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
155 lines
3.2 KiB
C
155 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
|
|
#include <common/debug.h>
|
|
#include <drivers/io/io_driver.h>
|
|
#include <drivers/io/io_dummy.h>
|
|
#include <drivers/io/io_storage.h>
|
|
|
|
struct file_state {
|
|
int in_use;
|
|
size_t size;
|
|
};
|
|
|
|
static struct file_state current_file = {0};
|
|
|
|
/* Identify the device type as dummy */
|
|
static io_type_t device_type_dummy(void)
|
|
{
|
|
return IO_TYPE_DUMMY;
|
|
}
|
|
|
|
/* Dummy device functions */
|
|
static int dummy_dev_open(const uintptr_t dev_spec, io_dev_info_t **dev_info);
|
|
static int dummy_block_open(io_dev_info_t *dev_info, const uintptr_t spec,
|
|
io_entity_t *entity);
|
|
static int dummy_block_len(io_entity_t *entity, size_t *length);
|
|
static int dummy_block_read(io_entity_t *entity, uintptr_t buffer,
|
|
size_t length, size_t *length_read);
|
|
static int dummy_block_close(io_entity_t *entity);
|
|
static int dummy_dev_close(io_dev_info_t *dev_info);
|
|
|
|
|
|
static const io_dev_connector_t dummy_dev_connector = {
|
|
.dev_open = dummy_dev_open
|
|
};
|
|
|
|
|
|
static const io_dev_funcs_t dummy_dev_funcs = {
|
|
.type = device_type_dummy,
|
|
.open = dummy_block_open,
|
|
.seek = NULL,
|
|
.size = dummy_block_len,
|
|
.read = dummy_block_read,
|
|
.write = NULL,
|
|
.close = dummy_block_close,
|
|
.dev_init = NULL,
|
|
.dev_close = dummy_dev_close,
|
|
};
|
|
|
|
|
|
static const io_dev_info_t dummy_dev_info = {
|
|
.funcs = &dummy_dev_funcs,
|
|
.info = (uintptr_t)NULL
|
|
};
|
|
|
|
|
|
/* Open a connection to the dummy device */
|
|
static int dummy_dev_open(const uintptr_t dev_spec __attribute__((unused)),
|
|
io_dev_info_t **dev_info)
|
|
{
|
|
assert(dev_info != NULL);
|
|
*dev_info = (io_dev_info_t *)&dummy_dev_info;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Close a connection to the dummy device */
|
|
static int dummy_dev_close(io_dev_info_t *dev_info)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Open a file on the dummy device */
|
|
static int dummy_block_open(io_dev_info_t *dev_info, const uintptr_t spec,
|
|
io_entity_t *entity)
|
|
{
|
|
int result;
|
|
const io_block_spec_t *block_spec = (io_block_spec_t *)spec;
|
|
|
|
if (current_file.in_use == 0) {
|
|
assert(block_spec != NULL);
|
|
assert(entity != NULL);
|
|
|
|
current_file.in_use = 1;
|
|
current_file.size = block_spec->length;
|
|
entity->info = (uintptr_t)¤t_file;
|
|
result = 0;
|
|
} else {
|
|
WARN("A Dummy device is already active. Close first.\n");
|
|
result = -ENOMEM;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/* Return the size of a file on the dummy device */
|
|
static int dummy_block_len(io_entity_t *entity, size_t *length)
|
|
{
|
|
assert(entity != NULL);
|
|
assert(length != NULL);
|
|
|
|
*length = ((struct file_state *)entity->info)->size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Read data from a file on the dummy device */
|
|
static int dummy_block_read(io_entity_t *entity, uintptr_t buffer,
|
|
size_t length, size_t *length_read)
|
|
{
|
|
assert(length_read != NULL);
|
|
|
|
*length_read = length;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Close a file on the dummy device */
|
|
static int dummy_block_close(io_entity_t *entity)
|
|
{
|
|
assert(entity != NULL);
|
|
|
|
entity->info = 0;
|
|
current_file.in_use = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Exported functions */
|
|
|
|
/* Register the dummy driver with the IO abstraction */
|
|
int register_io_dev_dummy(const io_dev_connector_t **dev_con)
|
|
{
|
|
int result;
|
|
|
|
assert(dev_con != NULL);
|
|
|
|
result = io_register_device(&dummy_dev_info);
|
|
if (result == 0)
|
|
*dev_con = &dummy_dev_connector;
|
|
|
|
return result;
|
|
}
|