diff options
Diffstat (limited to 'drivers/crypto/geode-aes.h')
| -rw-r--r-- | drivers/crypto/geode-aes.h | 51 |
1 files changed, 42 insertions, 9 deletions
diff --git a/drivers/crypto/geode-aes.h b/drivers/crypto/geode-aes.h index 8003a36f3a8..f442ca972e3 100644 --- a/drivers/crypto/geode-aes.h +++ b/drivers/crypto/geode-aes.h @@ -9,19 +9,46 @@ #ifndef _GEODE_AES_H_ #define _GEODE_AES_H_ -#define AES_KEY_LENGTH 16 -#define AES_IV_LENGTH 16 - -#define AES_MIN_BLOCK_SIZE 16 - +/* driver logic flags */ #define AES_MODE_ECB 0 #define AES_MODE_CBC 1 #define AES_DIR_DECRYPT 0 #define AES_DIR_ENCRYPT 1 -#define AES_FLAGS_USRKEY (1 << 0) -#define AES_FLAGS_COHERENT (1 << 1) +#define AES_FLAGS_HIDDENKEY (1 << 0) + +/* Register definitions */ + +#define AES_CTRLA_REG 0x0000 + +#define AES_CTRL_START 0x01 +#define AES_CTRL_DECRYPT 0x00 +#define AES_CTRL_ENCRYPT 0x02 +#define AES_CTRL_WRKEY 0x04 +#define AES_CTRL_DCA 0x08 +#define AES_CTRL_SCA 0x10 +#define AES_CTRL_CBC 0x20 + +#define AES_INTR_REG 0x0008 + +#define AES_INTRA_PENDING (1 << 16) +#define AES_INTRB_PENDING (1 << 17) + +#define AES_INTR_PENDING (AES_INTRA_PENDING | AES_INTRB_PENDING) +#define AES_INTR_MASK 0x07 + +#define AES_SOURCEA_REG 0x0010 +#define AES_DSTA_REG 0x0014 +#define AES_LENA_REG 0x0018 +#define AES_WRITEKEY0_REG 0x0030 +#define AES_WRITEIV0_REG 0x0040 + +/* A very large counter that is used to gracefully bail out of an + * operation in case of trouble + */ + +#define AES_OP_TIMEOUT 0x50000 struct geode_aes_op { @@ -33,8 +60,14 @@ struct geode_aes_op { u32 flags; int len; - u8 key[AES_KEY_LENGTH]; - u8 iv[AES_IV_LENGTH]; + u8 key[AES_KEYSIZE_128]; + u8 *iv; + + union { + struct crypto_blkcipher *blk; + struct crypto_cipher *cip; + } fallback; + u32 keylen; }; #endif |