aed594f4b8
Add an API qdf_file_read_bytes to read a file from within the driver and return the contents of it along with its size. Change-Id: If777e1b9c610e8cc7dd35be42fa9ced2bb1c6560 CRs-Fixed: 3456115
117 linhas
3.8 KiB
C
117 linhas
3.8 KiB
C
/*
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* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
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* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/**
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* DOC: Thin filesystem API abstractions
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*/
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#ifndef __QDF_FILE_H
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#define __QDF_FILE_H
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#include "qdf_status.h"
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/**
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* qdf_file_read() - read the entire contents of a file
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* @path: the full path of the file to read
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* @out_buf: double pointer for referring to the file contents buffer
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*
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* This API allocates a new, null-terminated buffer containing the contents of
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* the file at @path. On success, @out_buf points to this new buffer, otherwise
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* @out_buf is set to NULL.
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*
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* Consumers must free the allocated buffer by calling qdf_file_buf_free().
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*
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* Return: QDF_STATUS
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*/
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QDF_STATUS qdf_file_read(const char *path, char **out_buf);
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/**
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* qdf_file_read_bytes() - read the entire contents of a file and return the
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* size read along with the content
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* @path: the full path of the file to read
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* @out_buf: double pointer for referring to the file contents buffer
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* @out_buff_size: size of the contents read
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*
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* This API allocates a new, null-terminated buffer containing the contents of
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* the file at @path. On success, @out_buf points to this new buffer, otherwise
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* @out_buf is set to NULL.
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*
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* Consumers must free the allocated buffer by calling qdf_file_buf_free().
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*
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* Return: QDF_STATUS
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*/
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QDF_STATUS qdf_file_read_bytes(const char *path, char **out_buf,
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unsigned int *out_buff_size);
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/**
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* qdf_file_buf_free() - free a previously allocated file buffer
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* @file_buf: pointer to the file buffer to free
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*
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* This API is used in conjunction with qdf_file_read() and
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* qdf_file_read_bytes().
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*
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* Return: None
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*/
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void qdf_file_buf_free(char *file_buf);
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#ifdef QCA_WIFI_MODULE_PARAMS_FROM_INI
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/**
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* qdf_module_param_file_read() - read the entire contents of a file
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* @path: the full path of the file to read
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* @out_buf: double pointer for referring to the file contents buffer
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*
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* This API allocates a new buffer before qdf_mem_init() is being called.
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* Thus, this API helps to allocate memory which is being used before qdf
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* memory tracking framework is available. Buffer is null-terminated,
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* containing the contents of the file at @path. On success, @out_buf
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* points to this new buffer, otherwise @out_buf is set to NULL.
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*
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* Consumers must free the allocated buffer by calling
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* qdf_module_param_file_free().
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*
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* Return: QDF_STATUS
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*/
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QDF_STATUS qdf_module_param_file_read(const char *path, char **out_buf);
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/**
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* qdf_module_param_file_free() - free a previously allocated file buffer
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* @file_buf: pointer to the file buffer to free. The buffer allocated in
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* qdf_module_param_file_read is not tracked by qdf framework.
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*
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* This API is used in conjunction with qdf_module_param_file_read().
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*
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* Return: None
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*/
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void qdf_module_param_file_free(char *file_buf);
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#else
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static inline
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QDF_STATUS qdf_module_param_file_read(const char *path, char **out_buf)
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{
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return QDF_STATUS_E_INVAL;
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}
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static inline
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void qdf_module_param_file_free(char *file_buf)
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{
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}
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#endif
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#endif /* __QDF_FILE_H */
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