#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):		Initialisation 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
*			Apllicabel 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 paramters (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 */