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