9970e6a54e
This commit simplifies sending errors back to OP-TEE and avoids code duplication when handling errno values. Signed-off-by: Theodore Karatapanis <tkaratapanis@census-labs.com>
134 lines
4.4 KiB
C
134 lines
4.4 KiB
C
/****************************************************************************
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* drivers/misc/optee.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __DRIVERS_MISC_OPTEE_H
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#define __DRIVERS_MISC_OPTEE_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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#include <nuttx/tee.h>
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#include <nuttx/idr.h>
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#include "optee_msg.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Some GlobalPlatform error codes used in this driver */
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#define TEE_SUCCESS 0x00000000
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#define TEE_ERROR_ACCESS_DENIED 0xFFFF0001
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#define TEE_ERROR_BAD_FORMAT 0xFFFF0005
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#define TEE_ERROR_BAD_PARAMETERS 0xFFFF0006
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#define TEE_ERROR_GENERIC 0xFFFF0000
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#define TEE_ERROR_NOT_SUPPORTED 0xFFFF000A
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#define TEE_ERROR_OUT_OF_MEMORY 0xFFFF000C
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#define TEE_ERROR_BUSY 0xFFFF000D
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#define TEE_ERROR_COMMUNICATION 0xFFFF000E
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#define TEE_ERROR_SECURITY 0xFFFF000F
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#define TEE_ERROR_SHORT_BUFFER 0xFFFF0010
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#define TEE_ERROR_TIMEOUT 0xFFFF3001
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#define TEE_ORIGIN_COMMS 0x00000002
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#define OPTEE_SERVER_PATH "optee"
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#define OPTEE_MAX_PARAM_NUM 6
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/****************************************************************************
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* Public Types
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****************************************************************************/
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enum optee_role_e
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{
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OPTEE_ROLE_CA, /* /dev/tee0 */
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OPTEE_ROLE_SUPPLICANT, /* /dev/tee-supp0 */
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};
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struct optee_priv_data
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{
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uintptr_t alignment; /* Transport-specified message alignment */
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FAR struct idr_s *shms; /* An RB tree of process local shm entries */
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enum optee_role_e role;
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};
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struct optee_shm
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{
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FAR struct optee_priv_data *priv;
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int fd;
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int32_t id;
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uint64_t vaddr;
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uint64_t paddr;
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uint64_t length;
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FAR void *page_list;
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uint32_t flags;
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};
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/****************************************************************************
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* Public Functions Definitions
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#ifdef CONFIG_ARCH_ADDRENV
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uintptr_t optee_va_to_pa(FAR const void *va);
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#else
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# define optee_va_to_pa(va) ((uintptr_t)va)
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#endif
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int optee_shm_alloc(FAR struct optee_priv_data *priv, FAR void *addr,
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size_t size, uint32_t flags,
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FAR struct optee_shm **shmp);
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void optee_shm_free(FAR struct optee_shm *shm);
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int optee_transport_init(void);
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int optee_transport_open(FAR struct optee_priv_data **priv);
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void optee_transport_close(FAR struct optee_priv_data *priv);
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int optee_transport_call(FAR struct optee_priv_data *priv,
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FAR struct optee_msg_arg *arg);
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int optee_from_msg_param(FAR struct tee_ioctl_param *params,
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size_t num_params,
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FAR const struct optee_msg_param *mparams);
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int optee_to_msg_param(FAR struct optee_priv_data *priv,
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FAR struct optee_msg_param *mparams,
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size_t num_params,
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FAR const struct tee_ioctl_param *params);
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int optee_convert_to_errno(uint32_t oterr);
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uint32_t optee_convert_from_errno(int err);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __DRIVERS_MISC_OPTEE_H */
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