diff options
Diffstat (limited to 'drivers/crypto/amcc/crypto4xx_core.h')
| -rw-r--r-- | drivers/crypto/amcc/crypto4xx_core.h | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_core.h b/drivers/crypto/amcc/crypto4xx_core.h index dbe29043e0c5..2df6874edee1 100644 --- a/drivers/crypto/amcc/crypto4xx_core.h +++ b/drivers/crypto/amcc/crypto4xx_core.h @@ -166,9 +166,7 @@ int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size); void crypto4xx_free_sa(struct crypto4xx_ctx *ctx); void crypto4xx_free_ctx(struct crypto4xx_ctx *ctx); u32 crypto4xx_alloc_state_record(struct crypto4xx_ctx *ctx); -void crypto4xx_memcpy_le(unsigned int *dst, - const unsigned char *buf, int len); -u32 crypto4xx_build_pd(struct crypto_async_request *req, +int crypto4xx_build_pd(struct crypto_async_request *req, struct crypto4xx_ctx *ctx, struct scatterlist *src, struct scatterlist *dst, @@ -193,4 +191,47 @@ int crypto4xx_hash_digest(struct ahash_request *req); int crypto4xx_hash_final(struct ahash_request *req); int crypto4xx_hash_update(struct ahash_request *req); int crypto4xx_hash_init(struct ahash_request *req); + +/** + * Note: Only use this function to copy items that is word aligned. + */ +static inline void crypto4xx_memcpy_swab32(u32 *dst, const void *buf, + size_t len) +{ + for (; len >= 4; buf += 4, len -= 4) + *dst++ = __swab32p((u32 *) buf); + + if (len) { + const u8 *tmp = (u8 *)buf; + + switch (len) { + case 3: + *dst = (tmp[2] << 16) | + (tmp[1] << 8) | + tmp[0]; + break; + case 2: + *dst = (tmp[1] << 8) | + tmp[0]; + break; + case 1: + *dst = tmp[0]; + break; + default: + break; + } + } +} + +static inline void crypto4xx_memcpy_from_le32(u32 *dst, const void *buf, + size_t len) +{ + crypto4xx_memcpy_swab32(dst, buf, len); +} + +static inline void crypto4xx_memcpy_to_le32(__le32 *dst, const void *buf, + size_t len) +{ + crypto4xx_memcpy_swab32((u32 *)dst, buf, len); +} #endif |