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#ifndef _EMMC_RPMB_H
#define _EMMC_RPMB_H
#include <linux/mmc/ioctl.h>
#include <linux/mmc/card.h>
/************************************************************************
*
* RPMB IOCTL interface.
*
***********************************************************************/
#define RPMB_IOCTL_PROGRAM_KEY 1
#define RPMB_IOCTL_WRITE_DATA 3
#define RPMB_IOCTL_READ_DATA 4
struct rpmb_ioc_param {
unsigned char *key;
unsigned char *data;
unsigned int data_len;
unsigned short addr;
unsigned char *hmac;
unsigned int hmac_len;
};
/***********************************************************************/
#define RPMB_SZ_STUFF 196
#define RPMB_SZ_MAC 32
#define RPMB_SZ_DATA 256
#define RPMB_SZ_NONCE 16
struct s_rpmb {
unsigned char stuff[RPMB_SZ_STUFF];
unsigned char mac[RPMB_SZ_MAC];
unsigned char data[RPMB_SZ_DATA];
unsigned char nonce[RPMB_SZ_NONCE];
unsigned int write_counter;
unsigned short address;
unsigned short block_count;
unsigned short result;
unsigned short request;
};
enum {
RPMB_SUCCESS = 0,
RPMB_HMAC_ERROR,
RPMB_RESULT_ERROR,
RPMB_WC_ERROR,
RPMB_NONCE_ERROR,
RPMB_ALLOC_ERROR,
RPMB_TRANSFER_NOT_COMPLETE,
};
#define RPMB_PROGRAM_KEY 1 /* Program RPMB Authentication Key */
#define RPMB_GET_WRITE_COUNTER 2 /* Read RPMB write counter */
#define RPMB_WRITE_DATA 3 /* Write data to RPMB partition */
#define RPMB_READ_DATA 4 /* Read data from RPMB partition */
#define RPMB_RESULT_READ 5 /* Read result request */
#define RPMB_REQ 1 /* RPMB request mark */
#define RPMB_RESP (1 << 1)/* RPMB response mark */
#define RPMB_AVALIABLE_SECTORS 8 /* 4K page size */
#define RPMB_TYPE_BEG 510
#define RPMB_RES_BEG 508
#define RPMB_BLKS_BEG 506
#define RPMB_ADDR_BEG 504
#define RPMB_WCOUNTER_BEG 500
#define RPMB_NONCE_BEG 484
#define RPMB_DATA_BEG 228
#define RPMB_MAC_BEG 196
struct emmc_rpmb_req {
__u16 type; /* RPMB request type */
__u16 *result; /* response or request result */
__u16 blk_cnt; /* Number of blocks(half sector 256B) */
__u16 addr; /* data address */
__u32 *wc; /* write counter */
__u8 *nonce; /* Ramdom number */
__u8 *data; /* Buffer of the user data */
__u8 *mac; /* Message Authentication Code */
__u8 *data_frame;
};
int mmc_rpmb_set_key(struct mmc_card *card, void *key);
int mmc_rpmb_read(struct mmc_card *card, u8 *buf, u16 blk, u16 cnt, void *key);
int mmc_rpmb_write(struct mmc_card *card, u8 *buf, u16 blk, u16 cnt, void *key);
extern void emmc_rpmb_set_host(void *mmc_host);
#endif
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