83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef TRUSTY_TRUSTY_DEV_H_
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#define TRUSTY_TRUSTY_DEV_H_
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#include <trusty/sysdeps.h>
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/*
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* Architecture specific Trusty device struct.
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*
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* @priv_data: system dependent data, may be unused
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* @api_version: TIPC version
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*/
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struct trusty_dev {
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void *priv_data;
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uint32_t api_version;
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};
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/*
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* Initializes @dev with @priv, and gets the API version by calling
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* into Trusty. Returns negative on error.
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*/
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int trusty_dev_init(struct trusty_dev *dev, void *priv);
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/*
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* Cleans up anything related to @dev. Returns negative on error.
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*/
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int trusty_dev_shutdown(struct trusty_dev *dev);
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/*
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* Invokes creation of queueless Trusty IPC device on the secure side.
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* @buf will be mapped into Trusty's address space.
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*
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* @dev: trusty device, initialized with trusty_dev_init
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* @buf: physical address info of buffer to share with Trusty
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* @buf_size: size of @buf
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*/
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int trusty_dev_init_ipc(struct trusty_dev *dev, struct ns_mem_page_info *buf,
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uint32_t buf_size);
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/*
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* Invokes execution of command on the secure side.
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*
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* @dev: trusty device, initialized with trusty_dev_init
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* @buf: physical address info of shared buffer containing command
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* @buf_size: size of command data
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*/
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int trusty_dev_exec_ipc(struct trusty_dev *dev, struct ns_mem_page_info *buf,
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uint32_t buf_size);
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/*
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* Invokes deletion of queueless Trusty IPC device on the secure side.
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* @buf is unmapped, and all open channels are closed.
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*
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* @dev: trusty device, initialized with trusty_dev_init
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* @buf: physical address info of shared buffer
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* @buf_size: size of @buf
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*/
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int trusty_dev_shutdown_ipc(struct trusty_dev *dev,
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struct ns_mem_page_info *buf, uint32_t buf_size);
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#endif /* TRUSTY_TRUSTY_DEV_H_ */
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