| /* |
| * Copyright (c) 2014, 2017 The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _UAPI_COMPAT_QCEDEV__H |
| #define _UAPI_COMPAT_QCEDEV__H |
| |
| #include <linux/types.h> |
| #include <linux/ioctl.h> |
| |
| #if IS_ENABLED(CONFIG_COMPAT) |
| #include <linux/compat.h> |
| |
| /** |
| * struct compat_buf_info - Buffer information |
| * @offset: Offset from the base address of the buffer |
| * (Used when buffer is allocated using PMEM) |
| * @vaddr: Virtual buffer address pointer |
| * @len: Size of the buffer |
| */ |
| struct compat_buf_info { |
| union { |
| compat_ulong_t offset; |
| compat_uptr_t vaddr; |
| }; |
| compat_ulong_t len; |
| }; |
| |
| /** |
| * struct compat_qcedev_vbuf_info - Source and destination Buffer information |
| * @src: Array of buf_info for input/source |
| * @dst: Array of buf_info for output/destination |
| */ |
| struct compat_qcedev_vbuf_info { |
| struct compat_buf_info src[QCEDEV_MAX_BUFFERS]; |
| struct compat_buf_info dst[QCEDEV_MAX_BUFFERS]; |
| }; |
| |
| /** |
| * struct compat_qcedev_pmem_info - Stores PMEM buffer information |
| * @fd_src: Handle to /dev/adsp_pmem used to allocate |
| * memory for input/src buffer |
| * @src: Array of buf_info for input/source |
| * @fd_dst: Handle to /dev/adsp_pmem used to allocate |
| * memory for output/dst buffer |
| * @dst: Array of buf_info for output/destination |
| * @pmem_src_offset: The offset from input/src buffer |
| * (allocated by PMEM) |
| */ |
| struct compat_qcedev_pmem_info { |
| compat_int_t fd_src; |
| struct compat_buf_info src[QCEDEV_MAX_BUFFERS]; |
| compat_int_t fd_dst; |
| struct compat_buf_info dst[QCEDEV_MAX_BUFFERS]; |
| }; |
| |
| /** |
| * struct compat_qcedev_cipher_op_req - Holds the ciphering request information |
| * @use_pmem (IN): Flag to indicate if buffer source is PMEM |
| * QCEDEV_USE_PMEM/QCEDEV_NO_PMEM |
| * @pmem (IN): Stores PMEM buffer information. |
| * Refer struct qcedev_pmem_info |
| * @vbuf (IN/OUT): Stores Source and destination Buffer information |
| * Refer to struct qcedev_vbuf_info |
| * @data_len (IN): Total Length of input/src and output/dst in bytes |
| * @in_place_op (IN): Indicates whether the operation is inplace where |
| * source == destination |
| * When using PMEM allocated memory, must set this to 1 |
| * @enckey (IN): 128 bits of confidentiality key |
| * enckey[0] bit 127-120, enckey[1] bit 119-112,.. |
| * enckey[15] bit 7-0 |
| * @encklen (IN): Length of the encryption key(set to 128 bits/16 |
| * bytes in the driver) |
| * @iv (IN/OUT): Initialization vector data |
| * This is updated by the driver, incremented by |
| * number of blocks encrypted/decrypted. |
| * @ivlen (IN): Length of the IV |
| * @byteoffset (IN): Offset in the Cipher BLOCK (applicable and to be set |
| * for AES-128 CTR mode only) |
| * @alg (IN): Type of ciphering algorithm: AES/DES/3DES |
| * @mode (IN): Mode use when using AES algorithm: ECB/CBC/CTR |
| * Applicable when using AES algorithm only |
| * @op (IN): Type of operation: QCEDEV_OPER_DEC/QCEDEV_OPER_ENC or |
| * QCEDEV_OPER_ENC_NO_KEY/QCEDEV_OPER_DEC_NO_KEY |
| * |
| * If use_pmem is set to 0, the driver assumes that memory was not allocated |
| * via PMEM, and kernel will need to allocate memory and copy data from user |
| * space buffer (data_src/dta_dst) and process accordingly and copy data back |
| * to the user space buffer |
| * |
| * If use_pmem is set to 1, the driver assumes that memory was allocated via |
| * PMEM. |
| * The kernel driver will use the fd_src to determine the kernel virtual address |
| * base that maps to the user space virtual address base for the buffer |
| * allocated in user space. |
| * The final input/src and output/dst buffer pointer will be determined |
| * by adding the offsets to the kernel virtual addr. |
| * |
| * If use of hardware key is supported in the target, user can configure the |
| * key parameters (encklen, enckey) to use the hardware key. |
| * In order to use the hardware key, set encklen to 0 and set the enckey |
| * data array to 0. |
| */ |
| struct compat_qcedev_cipher_op_req { |
| uint8_t use_pmem; |
| union { |
| struct compat_qcedev_pmem_info pmem; |
| struct compat_qcedev_vbuf_info vbuf; |
| }; |
| compat_ulong_t entries; |
| compat_ulong_t data_len; |
| uint8_t in_place_op; |
| uint8_t enckey[QCEDEV_MAX_KEY_SIZE]; |
| compat_ulong_t encklen; |
| uint8_t iv[QCEDEV_MAX_IV_SIZE]; |
| compat_ulong_t ivlen; |
| compat_ulong_t byteoffset; |
| enum qcedev_cipher_alg_enum alg; |
| enum qcedev_cipher_mode_enum mode; |
| enum qcedev_oper_enum op; |
| }; |
| |
| /** |
| * struct qcedev_sha_op_req - Holds the hashing request information |
| * @data (IN): Array of pointers to the data to be hashed |
| * @entries (IN): Number of buf_info entries in the data array |
| * @data_len (IN): Length of data to be hashed |
| * @digest (IN/OUT): Returns the hashed data information |
| * @diglen (OUT): Size of the hashed/digest data |
| * @authkey (IN): Pointer to authentication key for HMAC |
| * @authklen (IN): Size of the authentication key |
| * @alg (IN): Secure Hash algorithm |
| */ |
| struct compat_qcedev_sha_op_req { |
| struct compat_buf_info data[QCEDEV_MAX_BUFFERS]; |
| compat_ulong_t entries; |
| compat_ulong_t data_len; |
| uint8_t digest[QCEDEV_MAX_SHA_DIGEST]; |
| compat_ulong_t diglen; |
| compat_uptr_t authkey; |
| compat_ulong_t authklen; |
| enum qcedev_sha_alg_enum alg; |
| }; |
| |
| struct file; |
| extern long compat_qcedev_ioctl(struct file *file, |
| unsigned int cmd, unsigned long arg); |
| |
| #define COMPAT_QCEDEV_IOCTL_ENC_REQ \ |
| _IOWR(QCEDEV_IOC_MAGIC, 1, struct compat_qcedev_cipher_op_req) |
| #define COMPAT_QCEDEV_IOCTL_DEC_REQ \ |
| _IOWR(QCEDEV_IOC_MAGIC, 2, struct compat_qcedev_cipher_op_req) |
| #define COMPAT_QCEDEV_IOCTL_SHA_INIT_REQ \ |
| _IOWR(QCEDEV_IOC_MAGIC, 3, struct compat_qcedev_sha_op_req) |
| #define COMPAT_QCEDEV_IOCTL_SHA_UPDATE_REQ \ |
| _IOWR(QCEDEV_IOC_MAGIC, 4, struct compat_qcedev_sha_op_req) |
| #define COMPAT_QCEDEV_IOCTL_SHA_FINAL_REQ \ |
| _IOWR(QCEDEV_IOC_MAGIC, 5, struct compat_qcedev_sha_op_req) |
| #define COMPAT_QCEDEV_IOCTL_GET_SHA_REQ \ |
| _IOWR(QCEDEV_IOC_MAGIC, 6, struct compat_qcedev_sha_op_req) |
| #define COMPAT_QCEDEV_IOCTL_LOCK_CE \ |
| _IO(QCEDEV_IOC_MAGIC, 7) |
| #define COMPAT_QCEDEV_IOCTL_UNLOCK_CE \ |
| _IO(QCEDEV_IOC_MAGIC, 8) |
| #define COMPAT_QCEDEV_IOCTL_GET_CMAC_REQ \ |
| _IOWR(QCEDEV_IOC_MAGIC, 9, struct compat_qcedev_sha_op_req) |
| |
| #endif /* CONFIG_COMPAT */ |
| #endif /* _UAPI_COMPAT_QCEDEV__H */ |