| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* |
| 3 | * Copyright (c) 2018 Linaro Limited |
| 4 | */ |
| 5 | |
| 6 | #ifndef __OPTEE_PRIVATE_H |
| 7 | #define __OPTEE_PRIVATE_H |
| 8 | |
| 9 | #include <tee.h> |
| 10 | |
| 11 | /** |
| 12 | * struct optee_private - OP-TEE driver private data |
| 13 | * @rpmb_mmc: mmc device for the RPMB partition |
| 14 | * @rpmb_dev_id: mmc device id matching @rpmb_mmc |
| 15 | * @rpmb_original_part: the previosly active partition on the mmc device, |
| 16 | * used to restore active the partition when the RPMB |
| 17 | * accesses are finished |
| 18 | */ |
| 19 | struct optee_private { |
| 20 | struct mmc *rpmb_mmc; |
| 21 | int rpmb_dev_id; |
| 22 | int rpmb_original_part; |
| 23 | }; |
| 24 | |
| 25 | struct optee_msg_arg; |
| 26 | |
| 27 | void optee_suppl_cmd(struct tee_device *dev, struct tee_shm *shm_arg, |
| 28 | void **page_list); |
| 29 | |
| 30 | #ifdef CONFIG_SUPPORT_EMMC_RPMB |
| 31 | /** |
| 32 | * optee_suppl_cmd_rpmb() - route RPMB frames to mmc |
| 33 | * @dev: device with the selected RPMB partition |
| 34 | * @arg: OP-TEE message holding the frames to transmit to the mmc |
| 35 | * and space for the response frames. |
| 36 | * |
| 37 | * Routes signed (MACed) RPMB frames from OP-TEE Secure OS to MMC and vice |
| 38 | * versa to manipulate the RPMB partition. |
| 39 | */ |
| 40 | void optee_suppl_cmd_rpmb(struct tee_device *dev, struct optee_msg_arg *arg); |
| 41 | |
| 42 | /** |
| 43 | * optee_suppl_rpmb_release() - release mmc device |
| 44 | * @dev: mmc device |
| 45 | * |
| 46 | * Releases the mmc device and restores the previously selected partition. |
| 47 | */ |
| 48 | void optee_suppl_rpmb_release(struct tee_device *dev); |
| 49 | #else |
| 50 | static inline void optee_suppl_cmd_rpmb(struct tee_device *dev, |
| 51 | struct optee_msg_arg *arg) |
| 52 | { |
| 53 | printf("OPTEE_MSG_RPC_CMD_RPMB not implemented\n"); |
| 54 | arg->ret = TEE_ERROR_NOT_IMPLEMENTED; |
| 55 | } |
| 56 | |
| 57 | static inline void optee_suppl_rpmb_release(struct tee_device *dev) |
| 58 | { |
| 59 | } |
| 60 | #endif |
| 61 | |
| 62 | #ifdef CONFIG_DM_I2C |
| 63 | /** |
| 64 | * optee_suppl_cmd_i2c_transfer() - route I2C requests to an I2C chip |
| 65 | * @arg: OP-TEE message (layout specified in optee_msg.h) defining the |
| 66 | * transfer mode (read/write), adapter, chip and control flags. |
| 67 | * |
| 68 | * Handles OP-TEE requests to transfer data to the I2C chip on the I2C adapter. |
| 69 | */ |
| 70 | void optee_suppl_cmd_i2c_transfer(struct optee_msg_arg *arg); |
| 71 | #else |
| 72 | static inline void optee_suppl_cmd_i2c_transfer(struct optee_msg_arg *arg) |
| 73 | { |
| 74 | printf("OPTEE_MSG_RPC_CMD_I2C_TRANSFER not implemented\n"); |
| 75 | arg->ret = TEE_ERROR_NOT_IMPLEMENTED; |
| 76 | } |
| 77 | #endif |
| 78 | |
| 79 | void *optee_alloc_and_init_page_list(void *buf, ulong len, u64 *phys_buf_ptr); |
| 80 | |
| 81 | #endif /* __OPTEE_PRIVATE_H */ |