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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>
148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/*
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* Copyright (c) 2015-2018, Renesas Electronics Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <string.h>
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#include <common/debug.h>
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#include <drivers/io/io_driver.h>
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#include <drivers/io/io_storage.h>
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#include "io_common.h"
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#include "io_private.h"
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#include "io_memdrv.h"
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#include "rcar_def.h"
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extern void rcar_dma_exec(uintptr_t dst, uint32_t src, uint32_t len);
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static int32_t memdrv_dev_open(const uintptr_t dev __attribute__ ((unused)),
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io_dev_info_t **dev_info);
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static int32_t memdrv_dev_close(io_dev_info_t *dev_info);
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/* As we need to be able to keep state for seek, only one file can be open
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* at a time. Make this a structure and point to the entity->info. When we
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* can malloc memory we can change this to support more open files.
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*/
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typedef struct {
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uint32_t in_use;
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uintptr_t base;
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ssize_t file_pos;
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} file_state_t;
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static file_state_t current_file = { 0 };
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static io_type_t device_type_memdrv(void)
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{
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return IO_TYPE_MEMMAP;
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}
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static int32_t memdrv_block_open(io_dev_info_t *dev_info, const uintptr_t spec,
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io_entity_t *entity)
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{
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const io_drv_spec_t *block_spec = (io_drv_spec_t *) spec;
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/* Since we need to track open state for seek() we only allow one open
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* spec at a time. When we have dynamic memory we can malloc and set
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* entity->info.
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*/
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if (current_file.in_use)
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return IO_RESOURCES_EXHAUSTED;
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/* File cursor offset for seek and incremental reads etc. */
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current_file.base = block_spec->offset;
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current_file.file_pos = 0;
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current_file.in_use = 1;
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entity->info = (uintptr_t) ¤t_file;
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return IO_SUCCESS;
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}
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static int32_t memdrv_block_seek(io_entity_t *entity, int32_t mode,
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ssize_t offset)
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{
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if (mode != IO_SEEK_SET)
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return IO_FAIL;
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((file_state_t *) entity->info)->file_pos = offset;
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return IO_SUCCESS;
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}
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static int32_t memdrv_block_read(io_entity_t *entity, uintptr_t buffer,
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size_t length, size_t *cnt)
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{
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file_state_t *fp;
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fp = (file_state_t *) entity->info;
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NOTICE("BL2: dst=0x%lx src=0x%lx len=%ld(0x%lx)\n",
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buffer, fp->base + fp->file_pos, length, length);
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if (FLASH_MEMORY_SIZE < fp->file_pos + length) {
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ERROR("BL2: check load image (source address)\n");
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return IO_FAIL;
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}
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rcar_dma_exec(buffer, fp->base + fp->file_pos, length);
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fp->file_pos += length;
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*cnt = length;
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return IO_SUCCESS;
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}
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static int32_t memdrv_block_close(io_entity_t *entity)
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{
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entity->info = 0U;
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memset((void *)¤t_file, 0, sizeof(current_file));
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return IO_SUCCESS;
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}
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static const io_dev_funcs_t memdrv_dev_funcs = {
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.type = &device_type_memdrv,
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.open = &memdrv_block_open,
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.seek = &memdrv_block_seek,
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.size = NULL,
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.read = &memdrv_block_read,
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.write = NULL,
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.close = &memdrv_block_close,
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.dev_init = NULL,
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.dev_close = &memdrv_dev_close,
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};
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static const io_dev_info_t memdrv_dev_info = {
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.funcs = &memdrv_dev_funcs,
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.info = 0,
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};
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static const io_dev_connector_t memdrv_dev_connector = {
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.dev_open = &memdrv_dev_open
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};
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static int32_t memdrv_dev_open(const uintptr_t dev __attribute__ ((unused)),
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io_dev_info_t **dev_info)
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{
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*dev_info = (io_dev_info_t *) &memdrv_dev_info;
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return IO_SUCCESS;
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}
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static int32_t memdrv_dev_close(io_dev_info_t *dev_info)
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{
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return IO_SUCCESS;
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}
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int32_t rcar_register_io_dev_memdrv(const io_dev_connector_t **dev_con)
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{
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int32_t result;
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result = io_register_device(&memdrv_dev_info);
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if (result == IO_SUCCESS)
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*dev_con = &memdrv_dev_connector;
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return result;
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}
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