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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __STARFIVE_STR_H__
#define __STARFIVE_STR_H__
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <crypto/engine.h>
#include <crypto/sha2.h>
#include <crypto/sm3.h>
#define STARFIVE_ALG_CR_OFFSET 0x0
#define STARFIVE_ALG_FIFO_OFFSET 0x4
#define STARFIVE_IE_MASK_OFFSET 0x8
#define STARFIVE_IE_FLAG_OFFSET 0xc
#define STARFIVE_DMA_IN_LEN_OFFSET 0x10
#define STARFIVE_DMA_OUT_LEN_OFFSET 0x14
#define STARFIVE_IE_MASK_HASH_DONE 0x4
#define STARFIVE_IE_MASK_PKA_DONE 0x8
#define STARFIVE_IE_FLAG_HASH_DONE 0x4
#define STARFIVE_IE_FLAG_PKA_DONE 0x8
#define STARFIVE_MSG_BUFFER_SIZE SZ_16K
#define MAX_KEY_SIZE SHA512_BLOCK_SIZE
union starfive_hash_csr {
u32 v;
struct {
u32 start :1;
u32 reset :1;
u32 ie :1;
u32 firstb :1;
#define STARFIVE_HASH_SM3 0x0
#define STARFIVE_HASH_SHA224 0x3
#define STARFIVE_HASH_SHA256 0x4
#define STARFIVE_HASH_SHA384 0x5
#define STARFIVE_HASH_SHA512 0x6
#define STARFIVE_HASH_MODE_MASK 0x7
u32 mode :3;
u32 rsvd_1 :1;
u32 final :1;
u32 rsvd_2 :2;
#define STARFIVE_HASH_HMAC_FLAGS 0x800
u32 hmac :1;
u32 rsvd_3 :1;
#define STARFIVE_HASH_KEY_DONE BIT(13)
u32 key_done :1;
u32 key_flag :1;
u32 hmac_done :1;
#define STARFIVE_HASH_BUSY BIT(16)
u32 busy :1;
u32 hashdone :1;
u32 rsvd_4 :14;
};
};
union starfive_pka_cacr {
u32 v;
struct {
u32 start :1;
u32 reset :1;
u32 ie :1;
u32 rsvd_0 :1;
u32 fifo_mode :1;
u32 not_r2 :1;
u32 ecc_sub :1;
u32 pre_expf :1;
u32 cmd :4;
u32 rsvd_1 :1;
u32 ctrl_dummy :1;
u32 ctrl_false :1;
u32 cln_done :1;
u32 opsize :6;
u32 rsvd_2 :2;
u32 exposize :6;
u32 rsvd_3 :1;
u32 bigendian :1;
};
};
struct starfive_rsa_key {
u8 *n;
u8 *e;
u8 *d;
int e_bitlen;
int d_bitlen;
int bitlen;
size_t key_sz;
};
union starfive_alg_cr {
u32 v;
struct {
u32 start :1;
u32 aes_dma_en :1;
u32 rsvd_0 :1;
u32 hash_dma_en :1;
u32 alg_done :1;
u32 rsvd_1 :3;
u32 clear :1;
u32 rsvd_2 :23;
};
};
struct starfive_cryp_ctx {
struct crypto_engine_ctx enginectx;
struct starfive_cryp_dev *cryp;
struct starfive_cryp_request_ctx *rctx;
unsigned int hash_mode;
u8 key[MAX_KEY_SIZE];
int keylen;
bool is_hmac;
struct starfive_rsa_key rsa_key;
struct crypto_akcipher *akcipher_fbk;
struct crypto_ahash *ahash_fbk;
};
struct starfive_cryp_dev {
struct list_head list;
struct device *dev;
struct clk *hclk;
struct clk *ahb;
struct reset_control *rst;
void __iomem *base;
phys_addr_t phys_base;
u32 dma_maxburst;
struct dma_chan *tx;
struct dma_chan *rx;
struct dma_slave_config cfg_in;
struct dma_slave_config cfg_out;
struct crypto_engine *engine;
struct tasklet_struct hash_done;
struct completion pka_done;
int err;
union starfive_alg_cr alg_cr;
union {
struct ahash_request *hreq;
} req;
};
struct starfive_cryp_request_ctx {
union {
union starfive_hash_csr hash;
union starfive_pka_cacr pka;
} csr;
struct scatterlist *in_sg;
struct scatterlist *out_sg;
struct ahash_request ahash_fbk_req;
size_t total;
size_t nents;
unsigned int blksize;
unsigned int digsize;
unsigned long in_sg_len;
u8 rsa_data[] __aligned(sizeof(u32));
};
struct starfive_cryp_dev *starfive_cryp_find_dev(struct starfive_cryp_ctx *ctx);
int starfive_hash_register_algs(void);
void starfive_hash_unregister_algs(void);
int starfive_rsa_register_algs(void);
void starfive_rsa_unregister_algs(void);
void starfive_hash_done_task(unsigned long param);
#endif
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