diff options
Diffstat (limited to 'meta-arm/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0001-Platform-corstone1000-Introduce-IO-framework.patch')
| -rw-r--r-- | meta-arm/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0001-Platform-corstone1000-Introduce-IO-framework.patch | 1354 |
1 files changed, 0 insertions, 1354 deletions
diff --git a/meta-arm/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0001-Platform-corstone1000-Introduce-IO-framework.patch b/meta-arm/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0001-Platform-corstone1000-Introduce-IO-framework.patch deleted file mode 100644 index 900fd54936..0000000000 --- a/meta-arm/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0001-Platform-corstone1000-Introduce-IO-framework.patch +++ /dev/null @@ -1,1354 +0,0 @@ -From 1db9afdbf70eb9708640debe5d7d24558fe0f63a Mon Sep 17 00:00:00 2001 -From: Mohamed Omar Asaker <mohamed.omarasaker@arm.com> -Date: Mon, 7 Nov 2022 12:49:11 +0000 -Subject: [PATCH 01/10] Platform: corstone1000: Introduce IO framework - -- Introduce IO storage framework -- Add IO flash to abstract flash implementation details from upper layer - -Signed-off-by: Mohamed Omar Asaker <mohamed.omarasaker@arm.com> -Upstream-Status: Accepted [TF-Mv1.8.0] ---- - .../target/arm/corstone1000/CMakeLists.txt | 4 + - .../ext/target/arm/corstone1000/io/io_block.c | 527 ++++++++++++++++++ - .../ext/target/arm/corstone1000/io/io_block.h | 40 ++ - .../ext/target/arm/corstone1000/io/io_defs.h | 27 + - .../target/arm/corstone1000/io/io_driver.h | 54 ++ - .../ext/target/arm/corstone1000/io/io_flash.c | 183 ++++++ - .../ext/target/arm/corstone1000/io/io_flash.h | 37 ++ - .../target/arm/corstone1000/io/io_storage.c | 289 ++++++++++ - .../target/arm/corstone1000/io/io_storage.h | 92 +++ - 9 files changed, 1253 insertions(+) - create mode 100644 platform/ext/target/arm/corstone1000/io/io_block.c - create mode 100644 platform/ext/target/arm/corstone1000/io/io_block.h - create mode 100644 platform/ext/target/arm/corstone1000/io/io_defs.h - create mode 100644 platform/ext/target/arm/corstone1000/io/io_driver.h - create mode 100644 platform/ext/target/arm/corstone1000/io/io_flash.c - create mode 100644 platform/ext/target/arm/corstone1000/io/io_flash.h - create mode 100644 platform/ext/target/arm/corstone1000/io/io_storage.c - create mode 100644 platform/ext/target/arm/corstone1000/io/io_storage.h - -diff --git a/platform/ext/target/arm/corstone1000/CMakeLists.txt b/platform/ext/target/arm/corstone1000/CMakeLists.txt -index cfbaffc995..7808efae68 100644 ---- a/platform/ext/target/arm/corstone1000/CMakeLists.txt -+++ b/platform/ext/target/arm/corstone1000/CMakeLists.txt -@@ -125,6 +125,9 @@ target_sources(platform_bl2 - fw_update_agent/fwu_agent.c - bl2_security_cnt.c - $<$<NOT:$<BOOL:${PLATFORM_DEFAULT_OTP}>>:${PLATFORM_DIR}/ext/accelerator/cc312/otp_cc312.c> -+ io/io_block.c -+ io/io_flash.c -+ io/io_storage.c - ) - - if (PLATFORM_IS_FVP) -@@ -182,6 +185,7 @@ target_include_directories(platform_bl2 - fip_parser - Native_Driver - fw_update_agent -+ io - . - INTERFACE - cc312 -diff --git a/platform/ext/target/arm/corstone1000/io/io_block.c b/platform/ext/target/arm/corstone1000/io/io_block.c -new file mode 100644 -index 0000000000..f7eaf7444c ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_block.c -@@ -0,0 +1,527 @@ -+/* -+ * Copyright (c) 2022 Arm Limited. All rights reserved. -+ * -+ * SPDX-License-Identifier: Apache-2.0 -+ * -+ * Licensed under the Apache License, Version 2.0 (the License); you may -+ * not use this file except in compliance with the License. -+ * You may obtain a copy of the License at -+ * -+ * http://www.apache.org/licenses/LICENSE-2.0 -+ * -+ * Unless required by applicable law or agreed to in writing, software -+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT -+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -+ * See the License for the specific language governing permissions and -+ * limitations under the License. -+ */ -+ -+#include "io_block.h" -+ -+#include <assert.h> -+#include <errno.h> -+ -+#include "io_defs.h" -+#include "io_driver.h" -+#include "io_storage.h" -+ -+typedef struct { -+ io_block_dev_spec_t *dev_spec; -+ uintptr_t base; -+ uint32_t file_pos; -+ uint32_t size; -+} block_dev_state_t; -+ -+#define is_power_of_2(x) (((x) != 0U) && (((x) & ((x)-1U)) == 0U)) -+ -+io_type_t device_type_block(void); -+ -+static int block_open(io_dev_info_t *dev_info, const uintptr_t spec, -+ io_entity_t *entity); -+static int block_seek(io_entity_t *entity, int mode, size_t offset); -+static int block_read(io_entity_t *entity, uintptr_t buffer, size_t length, -+ size_t *length_read); -+static int block_write(io_entity_t *entity, const uintptr_t buffer, -+ size_t length, size_t *length_written); -+static int block_close(io_entity_t *entity); -+static int block_dev_open(const uintptr_t dev_spec, io_dev_info_t **dev_info); -+static int block_dev_close(io_dev_info_t *dev_info); -+ -+static const io_dev_connector_t block_dev_connector = {.dev_open = -+ block_dev_open}; -+ -+static const io_dev_funcs_t block_dev_funcs = { -+ .type = device_type_block, -+ .open = block_open, -+ .seek = block_seek, -+ .size = NULL, -+ .read = block_read, -+ .write = block_write, -+ .close = block_close, -+ .dev_init = NULL, -+ .dev_close = block_dev_close, -+}; -+ -+static block_dev_state_t state_pool[MAX_IO_BLOCK_DEVICES]; -+static io_dev_info_t dev_info_pool[MAX_IO_BLOCK_DEVICES]; -+ -+/* Track number of allocated block state */ -+static unsigned int block_dev_count; -+ -+io_type_t device_type_block(void) { return IO_TYPE_BLOCK; } -+ -+/* Locate a block state in the pool, specified by address */ -+static int find_first_block_state(const io_block_dev_spec_t *dev_spec, -+ unsigned int *index_out) { -+ unsigned int index; -+ int result = -ENOENT; -+ -+ for (index = 0U; index < MAX_IO_BLOCK_DEVICES; ++index) { -+ /* dev_spec is used as identifier since it's unique */ -+ if (state_pool[index].dev_spec == dev_spec) { -+ result = 0; -+ *index_out = index; -+ break; -+ } -+ } -+ return result; -+} -+ -+/* Allocate a device info from the pool and return a pointer to it */ -+static int allocate_dev_info(io_dev_info_t **dev_info) { -+ int result = -ENOMEM; -+ assert(dev_info != NULL); -+ -+ if (block_dev_count < MAX_IO_BLOCK_DEVICES) { -+ unsigned int index = 0; -+ result = find_first_block_state(NULL, &index); -+ assert(result == 0); -+ /* initialize dev_info */ -+ dev_info_pool[index].funcs = &block_dev_funcs; -+ dev_info_pool[index].info = (uintptr_t)&state_pool[index]; -+ *dev_info = &dev_info_pool[index]; -+ ++block_dev_count; -+ } -+ -+ return result; -+} -+ -+/* Release a device info to the pool */ -+static int free_dev_info(io_dev_info_t *dev_info) { -+ int result; -+ unsigned int index = 0; -+ block_dev_state_t *state; -+ assert(dev_info != NULL); -+ -+ state = (block_dev_state_t *)dev_info->info; -+ result = find_first_block_state(state->dev_spec, &index); -+ if (result == 0) { -+ /* free if device info is valid */ -+ memset(state, 0, sizeof(block_dev_state_t)); -+ memset(dev_info, 0, sizeof(io_dev_info_t)); -+ --block_dev_count; -+ } -+ -+ return result; -+} -+ -+static int block_open(io_dev_info_t *dev_info, const uintptr_t spec, -+ io_entity_t *entity) { -+ block_dev_state_t *cur; -+ io_block_spec_t *region; -+ -+ assert((dev_info->info != (uintptr_t)NULL) && (spec != (uintptr_t)NULL) && -+ (entity->info == (uintptr_t)NULL)); -+ -+ region = (io_block_spec_t *)spec; -+ cur = (block_dev_state_t *)dev_info->info; -+ assert(((region->offset % cur->dev_spec->block_size) == 0) && -+ ((region->length % cur->dev_spec->block_size) == 0)); -+ -+ cur->base = region->offset; -+ cur->size = region->length; -+ cur->file_pos = 0; -+ -+ entity->info = (uintptr_t)cur; -+ return 0; -+} -+ -+/* parameter offset is relative address at here */ -+static int block_seek(io_entity_t *entity, int mode, size_t offset) { -+ block_dev_state_t *cur; -+ -+ assert(entity->info != (uintptr_t)NULL); -+ -+ cur = (block_dev_state_t *)entity->info; -+ -+ assert((offset >= 0) && ((uint32_t)offset < cur->size)); -+ switch (mode) { -+ case IO_SEEK_SET: -+ cur->file_pos = (uint32_t)offset; -+ break; -+ case IO_SEEK_CUR: -+ cur->file_pos += (uint32_t)offset; -+ break; -+ default: -+ return -EINVAL; -+ } -+ assert(cur->file_pos < cur->size); -+ return 0; -+} -+ -+/* -+ * This function allows the caller to read any number of bytes -+ * from any position. It hides from the caller that the low level -+ * driver only can read aligned blocks of data. For this reason -+ * we need to handle the use case where the first byte to be read is not -+ * aligned to start of the block, the last byte to be read is also not -+ * aligned to the end of a block, and there are zero or more blocks-worth -+ * of data in between. -+ * -+ * In such a case we need to read more bytes than requested (i.e. full -+ * blocks) and strip-out the leading bytes (aka skip) and the trailing -+ * bytes (aka padding). See diagram below -+ * -+ * cur->file_pos ------------ -+ * | -+ * cur->base | -+ * | | -+ * v v<---- length ----> -+ * -------------------------------------------------------------- -+ * | | block#1 | | block#n | -+ * | block#0 | + | ... | + | -+ * | | <- skip -> + | | + <- padding ->| -+ * ------------------------+----------------------+-------------- -+ * ^ ^ -+ * | | -+ * v iteration#1 iteration#n v -+ * -------------------------------------------------- -+ * | | | | -+ * |<---- request ---->| ... |<----- request ---->| -+ * | | | | -+ * -------------------------------------------------- -+ * / / | | -+ * / / | | -+ * / / | | -+ * / / | | -+ * / / | | -+ * / / | | -+ * / / | | -+ * / / | | -+ * / / | | -+ * / / | | -+ * <---- request ------> <------ request -----> -+ * --------------------- ----------------------- -+ * | | | | | | -+ * |<-skip->|<-nbytes->| -------->|<-nbytes->|<-padding->| -+ * | | | | | | | -+ * --------------------- | ----------------------- -+ * ^ \ \ | | | -+ * | \ \ | | | -+ * | \ \ | | | -+ * buf->offset \ \ buf->offset | | -+ * \ \ | | -+ * \ \ | | -+ * \ \ | | -+ * \ \ | | -+ * \ \ | | -+ * \ \ | | -+ * \ \ | | -+ * -------------------------------- -+ * | | | | -+ * buffer-------------->| | ... | | -+ * | | | | -+ * -------------------------------- -+ * <-count#1->| | -+ * <---------- count#n --------> -+ * <---------- length ----------> -+ * -+ * Additionally, the IO driver has an underlying buffer that is at least -+ * one block-size and may be big enough to allow. -+ */ -+static int block_read(io_entity_t *entity, uintptr_t buffer, size_t length, -+ size_t *length_read) { -+ block_dev_state_t *cur; -+ io_block_spec_t *buf; -+ io_block_ops_t *ops; -+ int lba; -+ size_t block_size, left; -+ size_t nbytes; /* number of bytes read in one iteration */ -+ size_t request; /* number of requested bytes in one iteration */ -+ size_t count; /* number of bytes already read */ -+ /* -+ * number of leading bytes from start of the block -+ * to the first byte to be read -+ */ -+ size_t skip; -+ -+ /* -+ * number of trailing bytes between the last byte -+ * to be read and the end of the block -+ */ -+ size_t padding; -+ -+ assert(entity->info != (uintptr_t)NULL); -+ cur = (block_dev_state_t *)entity->info; -+ ops = &(cur->dev_spec->ops); -+ buf = &(cur->dev_spec->buffer); -+ block_size = cur->dev_spec->block_size; -+ assert((length <= cur->size) && (length > 0U) && (ops->read != 0)); -+ -+ /* -+ * We don't know the number of bytes that we are going -+ * to read in every iteration, because it will depend -+ * on the low level driver. -+ */ -+ count = 0; -+ for (left = length; left > 0U; left -= nbytes) { -+ /* -+ * We must only request operations aligned to the block -+ * size. Therefore if file_pos is not block-aligned, -+ * we have to request the operation to start at the -+ * previous block boundary and skip the leading bytes. And -+ * similarly, the number of bytes requested must be a -+ * block size multiple -+ */ -+ skip = cur->file_pos & (block_size - 1U); -+ -+ /* -+ * Calculate the block number containing file_pos -+ * - e.g. block 3. -+ */ -+ lba = (cur->file_pos + cur->base) / block_size; -+ -+ if ((skip + left) > buf->length) { -+ /* -+ * The underlying read buffer is too small to -+ * read all the required data - limit to just -+ * fill the buffer, and then read again. -+ */ -+ request = buf->length; -+ } else { -+ /* -+ * The underlying read buffer is big enough to -+ * read all the required data. Calculate the -+ * number of bytes to read to align with the -+ * block size. -+ */ -+ request = skip + left; -+ request = (request + (block_size - 1U)) & ~(block_size - 1U); -+ } -+ request = ops->read(lba, buf->offset, request); -+ -+ if (request <= skip) { -+ /* -+ * We couldn't read enough bytes to jump over -+ * the skip bytes, so we should have to read -+ * again the same block, thus generating -+ * the same error. -+ */ -+ return -EIO; -+ } -+ -+ /* -+ * Need to remove skip and padding bytes,if any, from -+ * the read data when copying to the user buffer. -+ */ -+ nbytes = request - skip; -+ padding = (nbytes > left) ? nbytes - left : 0U; -+ nbytes -= padding; -+ -+ memcpy((void *)(buffer + count), (void *)(buf->offset + skip), nbytes); -+ -+ cur->file_pos += nbytes; -+ count += nbytes; -+ } -+ assert(count == length); -+ *length_read = count; -+ -+ return 0; -+} -+ -+/* -+ * This function allows the caller to write any number of bytes -+ * from any position. It hides from the caller that the low level -+ * driver only can write aligned blocks of data. -+ * See comments for block_read for more details. -+ */ -+static int block_write(io_entity_t *entity, const uintptr_t buffer, -+ size_t length, size_t *length_written) { -+ block_dev_state_t *cur; -+ io_block_spec_t *buf; -+ io_block_ops_t *ops; -+ int lba; -+ size_t block_size, left; -+ size_t nbytes; /* number of bytes read in one iteration */ -+ size_t request; /* number of requested bytes in one iteration */ -+ size_t count; /* number of bytes already read */ -+ /* -+ * number of leading bytes from start of the block -+ * to the first byte to be read -+ */ -+ size_t skip; -+ -+ /* -+ * number of trailing bytes between the last byte -+ * to be read and the end of the block -+ */ -+ size_t padding; -+ assert(entity->info != (uintptr_t)NULL); -+ cur = (block_dev_state_t *)entity->info; -+ ops = &(cur->dev_spec->ops); -+ buf = &(cur->dev_spec->buffer); -+ block_size = cur->dev_spec->block_size; -+ assert((length <= cur->size) && (length > 0U) && (ops->read != 0) && -+ (ops->write != 0)); -+ -+ /* -+ * We don't know the number of bytes that we are going -+ * to write in every iteration, because it will depend -+ * on the low level driver. -+ */ -+ count = 0; -+ for (left = length; left > 0U; left -= nbytes) { -+ /* -+ * We must only request operations aligned to the block -+ * size. Therefore if file_pos is not block-aligned, -+ * we have to request the operation to start at the -+ * previous block boundary and skip the leading bytes. And -+ * similarly, the number of bytes requested must be a -+ * block size multiple -+ */ -+ skip = cur->file_pos & (block_size - 1U); -+ -+ /* -+ * Calculate the block number containing file_pos -+ * - e.g. block 3. -+ */ -+ lba = (cur->file_pos + cur->base) / block_size; -+ -+ if ((skip + left) > buf->length) { -+ /* -+ * The underlying read buffer is too small to -+ * read all the required data - limit to just -+ * fill the buffer, and then read again. -+ */ -+ request = buf->length; -+ } else { -+ /* -+ * The underlying read buffer is big enough to -+ * read all the required data. Calculate the -+ * number of bytes to read to align with the -+ * block size. -+ */ -+ request = skip + left; -+ request = (request + (block_size - 1U)) & ~(block_size - 1U); -+ } -+ -+ /* -+ * The number of bytes that we are going to write -+ * from the user buffer will depend of the size -+ * of the current request. -+ */ -+ nbytes = request - skip; -+ padding = (nbytes > left) ? nbytes - left : 0U; -+ nbytes -= padding; -+ -+ /* -+ * If we have skip or padding bytes then we have to preserve -+ * some content and it means that we have to read before -+ * writing -+ */ -+ if ((skip > 0U) || (padding > 0U)) { -+ request = ops->read(lba, buf->offset, request); -+ /* -+ * The read may return size less than -+ * requested. Round down to the nearest block -+ * boundary -+ */ -+ request &= ~(block_size - 1U); -+ if (request <= skip) { -+ /* -+ * We couldn't read enough bytes to jump over -+ * the skip bytes, so we should have to read -+ * again the same block, thus generating -+ * the same error. -+ */ -+ return -EIO; -+ } -+ nbytes = request - skip; -+ padding = (nbytes > left) ? nbytes - left : 0U; -+ nbytes -= padding; -+ } -+ -+ memcpy((void *)(buf->offset + skip), (void *)(buffer + count), nbytes); -+ -+ request = ops->write(lba, buf->offset, request); -+ if (request <= skip) return -EIO; -+ -+ /* -+ * And the previous write operation may modify the size -+ * of the request, so again, we have to calculate the -+ * number of bytes that we consumed from the user -+ * buffer -+ */ -+ nbytes = request - skip; -+ padding = (nbytes > left) ? nbytes - left : 0U; -+ nbytes -= padding; -+ -+ cur->file_pos += nbytes; -+ count += nbytes; -+ } -+ assert(count == length); -+ *length_written = count; -+ -+ return 0; -+} -+ -+static int block_close(io_entity_t *entity) { -+ entity->info = (uintptr_t)NULL; -+ return 0; -+} -+ -+static int block_dev_open(const uintptr_t dev_spec, io_dev_info_t **dev_info) { -+ block_dev_state_t *cur; -+ io_block_spec_t *buffer; -+ io_dev_info_t *info; -+ size_t block_size; -+ int result; -+ assert(dev_info != NULL); -+ result = allocate_dev_info(&info); -+ if (result != 0) return -ENOENT; -+ -+ cur = (block_dev_state_t *)info->info; -+ /* dev_spec is type of io_block_dev_spec_t. */ -+ cur->dev_spec = (io_block_dev_spec_t *)dev_spec; -+ buffer = &(cur->dev_spec->buffer); -+ block_size = cur->dev_spec->block_size; -+ -+ assert((block_size > 0U) && (is_power_of_2(block_size) != 0U) && -+ ((buffer->length % block_size) == 0U)); -+ -+ *dev_info = info; /* cast away const */ -+ (void)block_size; -+ (void)buffer; -+ return 0; -+} -+ -+static int block_dev_close(io_dev_info_t *dev_info) { -+ return free_dev_info(dev_info); -+} -+ -+/* Exported functions */ -+ -+/* Register the Block driver with the IO abstraction */ -+int register_io_dev_block(const io_dev_connector_t **dev_con) { -+ int result; -+ -+ assert(dev_con != NULL); -+ -+ /* -+ * Since dev_info isn't really used in io_register_device, always -+ * use the same device info at here instead. -+ */ -+ result = io_register_device(&dev_info_pool[0]); -+ if (result == 0) *dev_con = &block_dev_connector; -+ return result; -+} -diff --git a/platform/ext/target/arm/corstone1000/io/io_block.h b/platform/ext/target/arm/corstone1000/io/io_block.h -new file mode 100644 -index 0000000000..1603aa74c5 ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_block.h -@@ -0,0 +1,40 @@ -+/* -+ * Copyright (c) 2022 Arm Limited. All rights reserved. -+ * -+ * SPDX-License-Identifier: Apache-2.0 -+ * -+ * Licensed under the Apache License, Version 2.0 (the License); you may -+ * not use this file except in compliance with the License. -+ * You may obtain a copy of the License at -+ * -+ * http://www.apache.org/licenses/LICENSE-2.0 -+ * -+ * Unless required by applicable law or agreed to in writing, software -+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT -+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -+ * See the License for the specific language governing permissions and -+ * limitations under the License. -+ */ -+ -+#ifndef __IO_BLOCK_H__ -+#define __IO_BLOCK_H__ -+ -+#include "io_storage.h" -+ -+/* block devices ops */ -+typedef struct io_block_ops { -+ size_t (*read)(int lba, uintptr_t buf, size_t size); -+ size_t (*write)(int lba, const uintptr_t buf, size_t size); -+} io_block_ops_t; -+ -+typedef struct io_block_dev_spec { -+ io_block_spec_t buffer; -+ io_block_ops_t ops; -+ size_t block_size; -+} io_block_dev_spec_t; -+ -+struct io_dev_connector; -+ -+int register_io_dev_block(const struct io_dev_connector **dev_con); -+ -+#endif /* __IO_BLOCK_H__ */ -\ No newline at end of file -diff --git a/platform/ext/target/arm/corstone1000/io/io_defs.h b/platform/ext/target/arm/corstone1000/io/io_defs.h -new file mode 100644 -index 0000000000..acba969ed6 ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_defs.h -@@ -0,0 +1,27 @@ -+/* -+ * Copyright (c) 2022 Arm Limited. All rights reserved. -+ * -+ * SPDX-License-Identifier: Apache-2.0 -+ * -+ * Licensed under the Apache License, Version 2.0 (the License); you may -+ * not use this file except in compliance with the License. -+ * You may obtain a copy of the License at -+ * -+ * http://www.apache.org/licenses/LICENSE-2.0 -+ * -+ * Unless required by applicable law or agreed to in writing, software -+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT -+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -+ * See the License for the specific language governing permissions and -+ * limitations under the License. -+ */ -+ -+#ifndef __IO_DEFS_H__ -+#define __IO_DEFS_H__ -+ -+#define MAX_IO_DEVICES (2) -+#define MAX_IO_HANDLES (2) -+#define MAX_IO_BLOCK_DEVICES (2) -+#define MAX_IO_FLASH_DEVICES (2) -+ -+#endif /* __IO_DEFS_H__ */ -\ No newline at end of file -diff --git a/platform/ext/target/arm/corstone1000/io/io_driver.h b/platform/ext/target/arm/corstone1000/io/io_driver.h -new file mode 100644 -index 0000000000..cf9e21a6d4 ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_driver.h -@@ -0,0 +1,54 @@ -+/* -+ * Copyright (c) 2014-2022, ARM Limited and Contributors. All rights reserved. -+ * -+ * SPDX-License-Identifier: BSD-3-Clause -+ */ -+ -+#ifndef __IO_DRIVER_H__ -+#define __IO_DRIVER_H__ -+ -+#include <io_storage.h> -+#include <stdint.h> -+ -+/* Generic IO entity structure,representing an accessible IO construct on the -+ * device, such as a file */ -+typedef struct io_entity { -+ struct io_dev_info *dev_handle; -+ uintptr_t info; -+} io_entity_t; -+ -+/* Device info structure, providing device-specific functions and a means of -+ * adding driver-specific state */ -+typedef struct io_dev_info { -+ const struct io_dev_funcs *funcs; -+ uintptr_t info; -+} io_dev_info_t; -+ -+/* Structure used to create a connection to a type of device */ -+typedef struct io_dev_connector { -+ /* dev_open opens a connection to a particular device driver */ -+ int (*dev_open)(const uintptr_t dev_spec, io_dev_info_t **dev_info); -+} io_dev_connector_t; -+ -+/* Structure to hold device driver function pointers */ -+typedef struct io_dev_funcs { -+ io_type_t (*type)(void); -+ int (*open)(io_dev_info_t *dev_info, const uintptr_t spec, -+ io_entity_t *entity); -+ int (*seek)(io_entity_t *entity, int mode, size_t offset); -+ int (*size)(io_entity_t *entity, size_t *length); -+ int (*read)(io_entity_t *entity, uintptr_t buffer, size_t length, -+ size_t *length_read); -+ int (*write)(io_entity_t *entity, const uintptr_t buffer, size_t length, -+ size_t *length_written); -+ int (*close)(io_entity_t *entity); -+ int (*dev_init)(io_dev_info_t *dev_info, const uintptr_t init_params); -+ int (*dev_close)(io_dev_info_t *dev_info); -+} io_dev_funcs_t; -+ -+/* Operations intended to be performed during platform initialisation */ -+ -+/* Register an IO device */ -+int io_register_device(const io_dev_info_t *dev_info); -+ -+#endif /* __IO_DRIVER_H__ */ -diff --git a/platform/ext/target/arm/corstone1000/io/io_flash.c b/platform/ext/target/arm/corstone1000/io/io_flash.c -new file mode 100644 -index 0000000000..ff4524e9c5 ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_flash.c -@@ -0,0 +1,183 @@ -+/* -+ * Copyright (c) 2022 Arm Limited. All rights reserved. -+ * -+ * SPDX-License-Identifier: Apache-2.0 -+ * -+ * Licensed under the Apache License, Version 2.0 (the License); you may -+ * not use this file except in compliance with the License. -+ * You may obtain a copy of the License at -+ * -+ * http://www.apache.org/licenses/LICENSE-2.0 -+ * -+ * Unless required by applicable law or agreed to in writing, software -+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT -+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -+ * See the License for the specific language governing permissions and -+ * limitations under the License. -+ */ -+ -+#include "io_flash.h" -+ -+#include <assert.h> -+#include <errno.h> -+ -+#include "Driver_Flash.h" -+#include "io_block.h" -+#include "io_defs.h" -+#include "io_driver.h" -+#include "io_storage.h" -+ -+#if MAX_IO_FLASH_DEVICES > MAX_IO_BLOCK_DEVICES -+#error \ -+ "FLASH devices are BLOCK devices .. MAX_IO_FLASH_DEVICES should be less or equal to MAX_IO_BLOCK_DEVICES" -+#endif -+ -+/* Private Prototypes */ -+ -+static int flash_dev_open(const uintptr_t dev_spec, io_dev_info_t **dev_info); -+static size_t flash_read(int lba, uintptr_t buf, size_t size, size_t flash_id); -+static size_t flash_write(int lba, const uintptr_t buf, size_t size, -+ size_t flash_id); -+static size_t flash0_read(int lba, uintptr_t buf, size_t size); -+static size_t flash0_write(int lba, uintptr_t buf, size_t size); -+static size_t flash1_read(int lba, uintptr_t buf, size_t size); -+static size_t flash1_write(int lba, uintptr_t buf, size_t size); -+ -+/** Private Data **/ -+ -+/* Flash device data */ -+static const io_dev_connector_t flash_dev_connector = {.dev_open = -+ flash_dev_open}; -+static size_t flash_dev_count = 0; -+static io_flash_dev_spec_t *flash_dev_specs[MAX_IO_FLASH_DEVICES]; -+ -+/* Block device data */ -+static io_dev_connector_t block_dev_connectors[MAX_IO_FLASH_DEVICES]; -+static io_block_dev_spec_t block_dev_spec[MAX_IO_FLASH_DEVICES]; -+ -+/* Flash devices read/write function pointers */ -+static io_block_ops_t flashs_ops[MAX_IO_FLASH_DEVICES] = { -+ [0] = {.read = flash0_read, .write = flash0_write}, -+ [1] = {.read = flash1_read, .write = flash1_write}, -+}; -+ -+/* Flash ops functions */ -+static size_t flash_read(int lba, uintptr_t buf, size_t size, size_t flash_id) { -+ ARM_DRIVER_FLASH *flash_driver = -+ ((ARM_DRIVER_FLASH *)flash_dev_specs[flash_id]->flash_driver); -+ ARM_FLASH_INFO *info = flash_driver->GetInfo(); -+ uint32_t addr = info->sector_size * lba; -+ uint32_t offset = addr - flash_dev_specs[flash_id]->base_addr; -+ size_t rem = info->sector_count * info->sector_size - offset; -+ size_t cnt = size < rem ? size : rem; -+ -+ return flash_driver->ReadData(offset, buf, cnt); -+} -+ -+static size_t flash_write(int lba, const uintptr_t buf, size_t size, -+ size_t flash_id) { -+ ARM_DRIVER_FLASH *flash_driver = -+ ((ARM_DRIVER_FLASH *)flash_dev_specs[flash_id]->flash_driver); -+ ARM_FLASH_INFO *info = flash_driver->GetInfo(); -+ int32_t rc = 0; -+ uint32_t addr = info->sector_size * lba; -+ uint32_t offset = addr - flash_dev_specs[flash_id]->base_addr; -+ size_t rem = info->sector_count * info->sector_size - offset; -+ size_t cnt = size < rem ? size : rem; -+ -+ flash_driver->EraseSector(offset); -+ rc = flash_driver->ProgramData(offset, buf, cnt); -+ return rc; -+} -+ -+/* Flash ops functions wrapper for each device */ -+ -+static size_t flash0_read(int lba, uintptr_t buf, size_t size) { -+ return flash_read(lba, buf, size, 0); -+} -+ -+static size_t flash0_write(int lba, uintptr_t buf, size_t size) { -+ return flash_write(lba, buf, size, 0); -+} -+ -+static size_t flash1_read(int lba, uintptr_t buf, size_t size) { -+ return flash_read(lba, buf, size, 1); -+} -+ -+static size_t flash1_write(int lba, uintptr_t buf, size_t size) { -+ return flash_write(lba, buf, size, 1); -+} -+ -+/** -+ * Helper function to find the index of stored flash_dev_specs or -+ * return a free slot in case of a new dev_spec -+ */ -+static int find_flash_dev_specs(const uintptr_t dev_spec) { -+ /* Search in the saved ones */ -+ for (int i = 0; i < flash_dev_count; ++i) { -+ if (flash_dev_specs[i] != NULL && -+ flash_dev_specs[i]->flash_driver == -+ ((io_flash_dev_spec_t *)dev_spec)->flash_driver) { -+ return i; -+ } -+ } -+ /* Find the first empty flash_dev_specs to be used */ -+ for (int i = 0; i < flash_dev_count; ++i) { -+ if (flash_dev_specs[i] == NULL) { -+ return i; -+ } -+ } -+ return -1; -+} -+ -+/** -+ * This function should be called -+ */ -+static int flash_dev_open(const uintptr_t dev_spec, io_dev_info_t **dev_info) { -+ ARM_DRIVER_FLASH *flash_driver; -+ assert(dev_info != NULL); -+ assert(dev_spec != NULL); -+ -+ size_t index = find_flash_dev_specs(dev_spec); -+ -+ /* Check if Flash ops functions are defined for this flash */ -+ assert(flashs_ops[index].read && flashs_ops[index].write); -+ -+ flash_dev_specs[index] = dev_spec; -+ flash_driver = flash_dev_specs[index]->flash_driver; -+ -+ block_dev_spec[index].block_size = flash_driver->GetInfo()->sector_size; -+ block_dev_spec[index].buffer.offset = flash_dev_specs[index]->buffer; -+ block_dev_spec[index].buffer.length = flash_dev_specs[index]->bufferlen; -+ block_dev_spec[index].ops = flashs_ops[index]; -+ -+ flash_driver->Initialize(NULL); -+ -+ block_dev_connectors[index].dev_open(&block_dev_spec[index], dev_info); -+ -+ return 0; -+} -+ -+/* Exported functions */ -+ -+/** -+ * Register the flash device. -+ * Internally it register a block device. -+ */ -+int register_io_dev_flash(const io_dev_connector_t **dev_con) { -+ int result; -+ -+ if (flash_dev_count >= MAX_IO_FLASH_DEVICES) { -+ return -ENOENT; -+ } -+ assert(dev_con != NULL); -+ -+ result = register_io_dev_block(dev_con); -+ if (result == 0) { -+ /* Store the block dev connector */ -+ block_dev_connectors[flash_dev_count++] = **dev_con; -+ /* Override dev_con with the flash dev connector */ -+ *dev_con = &flash_dev_connector; -+ } -+ return result; -+} -diff --git a/platform/ext/target/arm/corstone1000/io/io_flash.h b/platform/ext/target/arm/corstone1000/io/io_flash.h -new file mode 100644 -index 0000000000..8bc38b5824 ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_flash.h -@@ -0,0 +1,37 @@ -+/* -+ * Copyright (c) 2022 Arm Limited. All rights reserved. -+ * -+ * SPDX-License-Identifier: Apache-2.0 -+ * -+ * Licensed under the Apache License, Version 2.0 (the License); you may -+ * not use this file except in compliance with the License. -+ * You may obtain a copy of the License at -+ * -+ * http://www.apache.org/licenses/LICENSE-2.0 -+ * -+ * Unless required by applicable law or agreed to in writing, software -+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT -+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -+ * See the License for the specific language governing permissions and -+ * limitations under the License. -+ */ -+ -+#ifndef __IO_FLASH_H__ -+#define __IO_FLASH_H__ -+ -+#include "io_storage.h" -+ -+typedef struct io_flash_dev_spec { -+ uintptr_t buffer; -+ size_t bufferlen; -+ uint32_t base_addr; -+ uintptr_t flash_driver; -+} io_flash_dev_spec_t; -+ -+struct io_dev_connector; -+ -+/* Register the flash driver with the IO abstraction internally it register a -+ * block device*/ -+int register_io_dev_flash(const struct io_dev_connector **dev_con); -+ -+#endif /* __IO_FLASH_H__ */ -diff --git a/platform/ext/target/arm/corstone1000/io/io_storage.c b/platform/ext/target/arm/corstone1000/io/io_storage.c -new file mode 100644 -index 0000000000..f26f4980f0 ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_storage.c -@@ -0,0 +1,289 @@ -+/* -+ * Copyright (c) 2022 Arm Limited. All rights reserved. -+ * -+ * SPDX-License-Identifier: Apache-2.0 -+ * -+ * Licensed under the Apache License, Version 2.0 (the License); you may -+ * not use this file except in compliance with the License. -+ * You may obtain a copy of the License at -+ * -+ * http://www.apache.org/licenses/LICENSE-2.0 -+ * -+ * Unless required by applicable law or agreed to in writing, software -+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT -+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -+ * See the License for the specific language governing permissions and -+ * limitations under the License. -+ */ -+ -+#include <assert.h> -+#include <errno.h> -+#include <stdbool.h> -+ -+#include "io_defs.h" -+#include "io_driver.h" -+ -+/* Storage for a fixed maximum number of IO entities, definable by platform */ -+static io_entity_t entity_pool[MAX_IO_HANDLES]; -+ -+/* Simple way of tracking used storage - each entry is NULL or a pointer to an -+ * entity */ -+static io_entity_t *entity_map[MAX_IO_HANDLES]; -+ -+/* Track number of allocated entities */ -+static unsigned int entity_count; -+ -+/* Array of fixed maximum of registered devices, definable by platform */ -+static const io_dev_info_t *devices[MAX_IO_DEVICES]; -+ -+/* Number of currently registered devices */ -+static unsigned int dev_count; -+ -+/* Return a boolean value indicating whether a device connector is valid */ -+static bool is_valid_dev_connector(const io_dev_connector_t *dev_con) { -+ return (dev_con != NULL) && (dev_con->dev_open != NULL); -+} -+ -+/* Return a boolean value indicating whether a device handle is valid */ -+static bool is_valid_dev(const uintptr_t dev_handle) { -+ const io_dev_info_t *dev = (io_dev_info_t *)dev_handle; -+ -+ return (dev != NULL) && (dev->funcs != NULL) && -+ (dev->funcs->type != NULL) && (dev->funcs->type() < IO_TYPE_MAX); -+} -+ -+/* Return a boolean value indicating whether an IO entity is valid */ -+static bool is_valid_entity(const uintptr_t handle) { -+ const io_entity_t *entity = (io_entity_t *)handle; -+ -+ return (entity != NULL) && (is_valid_dev((uintptr_t)entity->dev_handle)); -+} -+ -+/* Return a boolean value indicating whether a seek mode is valid */ -+static bool is_valid_seek_mode(io_seek_mode_t mode) { -+ return ((mode != IO_SEEK_INVALID) && (mode < IO_SEEK_MAX)); -+} -+ -+/* Open a connection to a specific device */ -+static int io_storage_dev_open(const io_dev_connector_t *dev_con, -+ const uintptr_t dev_spec, -+ io_dev_info_t **dev_info) { -+ assert(dev_info != NULL); -+ assert(is_valid_dev_connector(dev_con)); -+ -+ return dev_con->dev_open(dev_spec, dev_info); -+} -+ -+/* Set a handle to track an entity */ -+static void set_handle(uintptr_t *handle, io_entity_t *entity) { -+ assert(handle != NULL); -+ *handle = (uintptr_t)entity; -+} -+ -+/* Locate an entity in the pool, specified by address */ -+static int find_first_entity(const io_entity_t *entity, -+ unsigned int *index_out) { -+ int result = -ENOENT; -+ for (unsigned int index = 0; index < MAX_IO_HANDLES; ++index) { -+ if (entity_map[index] == entity) { -+ result = 0; -+ *index_out = index; -+ break; -+ } -+ } -+ return result; -+} -+ -+/* Allocate an entity from the pool and return a pointer to it */ -+static int allocate_entity(io_entity_t **entity) { -+ int result = -ENOMEM; -+ assert(entity != NULL); -+ -+ if (entity_count < MAX_IO_HANDLES) { -+ unsigned int index = 0; -+ result = find_first_entity(NULL, &index); -+ assert(result == 0); -+ *entity = &entity_pool[index]; -+ entity_map[index] = &entity_pool[index]; -+ ++entity_count; -+ } -+ -+ return result; -+} -+ -+/* Release an entity back to the pool */ -+static int free_entity(const io_entity_t *entity) { -+ int result; -+ unsigned int index = 0; -+ assert(entity != NULL); -+ -+ result = find_first_entity(entity, &index); -+ if (result == 0) { -+ entity_map[index] = NULL; -+ --entity_count; -+ } -+ -+ return result; -+} -+ -+/* Exported API */ -+ -+/* Register an io device */ -+int io_register_device(const io_dev_info_t *dev_info) { -+ int result = -ENOMEM; -+ assert(dev_info != NULL); -+ -+ if (dev_count < MAX_IO_DEVICES) { -+ devices[dev_count] = dev_info; -+ dev_count++; -+ result = 0; -+ } -+ -+ return result; -+} -+ -+/* Open a connection to an IO device */ -+int io_dev_open(const io_dev_connector_t *dev_con, const uintptr_t dev_spec, -+ uintptr_t *handle) { -+ assert(handle != NULL); -+ return io_storage_dev_open(dev_con, dev_spec, (io_dev_info_t **)handle); -+} -+ -+/* Initialise an IO device explicitly - to permit lazy initialisation or -+ * re-initialisation */ -+int io_dev_init(uintptr_t dev_handle, const uintptr_t init_params) { -+ int result = 0; -+ assert(dev_handle != (uintptr_t)NULL); -+ assert(is_valid_dev(dev_handle)); -+ -+ io_dev_info_t *dev = (io_dev_info_t *)dev_handle; -+ -+ /* Absence of registered function implies NOP here */ -+ if (dev->funcs->dev_init != NULL) { -+ result = dev->funcs->dev_init(dev, init_params); -+ } -+ -+ return result; -+} -+ -+/* Close a connection to a device */ -+int io_dev_close(uintptr_t dev_handle) { -+ int result = 0; -+ assert(dev_handle != (uintptr_t)NULL); -+ assert(is_valid_dev(dev_handle)); -+ -+ io_dev_info_t *dev = (io_dev_info_t *)dev_handle; -+ -+ /* Absence of registered function implies NOP here */ -+ if (dev->funcs->dev_close != NULL) { -+ result = dev->funcs->dev_close(dev); -+ } -+ -+ return result; -+} -+ -+/* Synchronous operations */ -+ -+/* Open an IO entity */ -+int io_open(uintptr_t dev_handle, const uintptr_t spec, uintptr_t *handle) { -+ int result; -+ assert((spec != (uintptr_t)NULL) && (handle != NULL)); -+ assert(is_valid_dev(dev_handle)); -+ -+ io_dev_info_t *dev = (io_dev_info_t *)dev_handle; -+ io_entity_t *entity; -+ -+ result = allocate_entity(&entity); -+ -+ if (result == 0) { -+ assert(dev->funcs->open != NULL); -+ result = dev->funcs->open(dev, spec, entity); -+ -+ if (result == 0) { -+ entity->dev_handle = dev; -+ set_handle(handle, entity); -+ } else -+ free_entity(entity); -+ } -+ return result; -+} -+ -+/* Seek to a specific position in an IO entity */ -+int io_seek(uintptr_t handle, io_seek_mode_t mode, int32_t offset) { -+ int result = -ENODEV; -+ assert(is_valid_entity(handle) && is_valid_seek_mode(mode)); -+ -+ io_entity_t *entity = (io_entity_t *)handle; -+ -+ io_dev_info_t *dev = entity->dev_handle; -+ -+ if (dev->funcs->seek != NULL) -+ result = dev->funcs->seek(entity, mode, offset); -+ -+ return result; -+} -+ -+/* Determine the length of an IO entity */ -+int io_size(uintptr_t handle, size_t *length) { -+ int result = -ENODEV; -+ assert(is_valid_entity(handle) && (length != NULL)); -+ -+ io_entity_t *entity = (io_entity_t *)handle; -+ -+ io_dev_info_t *dev = entity->dev_handle; -+ -+ if (dev->funcs->size != NULL) result = dev->funcs->size(entity, length); -+ -+ return result; -+} -+ -+/* Read data from an IO entity */ -+int io_read(uintptr_t handle, uintptr_t buffer, size_t length, -+ size_t *length_read) { -+ int result = -ENODEV; -+ assert(is_valid_entity(handle)); -+ -+ io_entity_t *entity = (io_entity_t *)handle; -+ -+ io_dev_info_t *dev = entity->dev_handle; -+ -+ if (dev->funcs->read != NULL) -+ result = dev->funcs->read(entity, buffer, length, length_read); -+ -+ return result; -+} -+ -+/* Write data to an IO entity */ -+int io_write(uintptr_t handle, const uintptr_t buffer, size_t length, -+ size_t *length_written) { -+ int result = -ENODEV; -+ assert(is_valid_entity(handle)); -+ -+ io_entity_t *entity = (io_entity_t *)handle; -+ -+ io_dev_info_t *dev = entity->dev_handle; -+ -+ if (dev->funcs->write != NULL) { -+ result = dev->funcs->write(entity, buffer, length, length_written); -+ } -+ -+ return result; -+} -+ -+/* Close an IO entity */ -+int io_close(uintptr_t handle) { -+ int result = 0; -+ assert(is_valid_entity(handle)); -+ -+ io_entity_t *entity = (io_entity_t *)handle; -+ -+ io_dev_info_t *dev = entity->dev_handle; -+ -+ /* Absence of registered function implies NOP here */ -+ if (dev->funcs->close != NULL) result = dev->funcs->close(entity); -+ -+ /* Ignore improbable free_entity failure */ -+ (void)free_entity(entity); -+ -+ return result; -+} -diff --git a/platform/ext/target/arm/corstone1000/io/io_storage.h b/platform/ext/target/arm/corstone1000/io/io_storage.h -new file mode 100644 -index 0000000000..0cdca5b269 ---- /dev/null -+++ b/platform/ext/target/arm/corstone1000/io/io_storage.h -@@ -0,0 +1,92 @@ -+/* -+ * Copyright (c) 2022 Arm Limited. All rights reserved. -+ * -+ * SPDX-License-Identifier: Apache-2.0 -+ * -+ * Licensed under the Apache License, Version 2.0 (the License); you may -+ * not use this file except in compliance with the License. -+ * You may obtain a copy of the License at -+ * -+ * http://www.apache.org/licenses/LICENSE-2.0 -+ * -+ * Unless required by applicable law or agreed to in writing, software -+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT -+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -+ * See the License for the specific language governing permissions and -+ * limitations under the License. -+ */ -+ -+#ifndef __IO_STORAGE_H__ -+#define __IO_STORAGE_H__ -+ -+#include <stddef.h> -+#include <stdint.h> -+ -+/* Access modes used when accessing data on a device */ -+#define IO_MODE_INVALID (0) -+#define IO_MODE_RO (1 << 0) -+#define IO_MODE_RW (1 << 1) -+ -+/* Device type which can be used to enable policy decisions about which device -+ * to access */ -+typedef enum { -+ IO_TYPE_INVALID, -+ IO_TYPE_SEMIHOSTING, -+ IO_TYPE_MEMMAP, -+ IO_TYPE_DUMMY, -+ IO_TYPE_FIRMWARE_IMAGE_PACKAGE, -+ IO_TYPE_BLOCK, -+ IO_TYPE_MTD, -+ IO_TYPE_MMC, -+ IO_TYPE_STM32IMAGE, -+ IO_TYPE_ENCRYPTED, -+ IO_TYPE_MAX -+} io_type_t; -+ -+/* Modes used when seeking data on a supported device */ -+typedef enum { -+ IO_SEEK_INVALID, -+ IO_SEEK_SET, -+ IO_SEEK_END, -+ IO_SEEK_CUR, -+ IO_SEEK_MAX -+} io_seek_mode_t; -+ -+/* Connector type, providing a means of identifying a device to open */ -+struct io_dev_connector; -+ -+/* Block specification - used to refer to data on a device supporting -+ * block-like entities */ -+typedef struct io_block_spec { -+ size_t offset; -+ size_t length; -+} io_block_spec_t; -+ -+ -+/* Open a connection to a device */ -+int io_dev_open(const struct io_dev_connector *dev_con, -+ const uintptr_t dev_spec, uintptr_t *handle); -+ -+/* Initialise a device explicitly - to permit lazy initialisation or -+ * re-initialisation */ -+int io_dev_init(uintptr_t dev_handle, const uintptr_t init_params); -+ -+/* Close a connection to a device */ -+int io_dev_close(uintptr_t dev_handle); -+ -+/* Synchronous operations */ -+int io_open(uintptr_t dev_handle, const uintptr_t spec, uintptr_t *handle); -+ -+int io_seek(uintptr_t handle, io_seek_mode_t mode, int32_t offset); -+ -+int io_size(uintptr_t handle, size_t *length); -+ -+int io_read(uintptr_t handle, uintptr_t buffer, size_t length, -+ size_t *length_read); -+ -+int io_write(uintptr_t handle, const uintptr_t buffer, size_t length, -+ size_t *length_written); -+ -+int io_close(uintptr_t handle); -+ -+#endif /* __IO_STORAGE_H__ */ --- -2.25.1 - |