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Commit a16144bd authored by Herbert Xu's avatar Herbert Xu
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crypto: atmel - Remove cfb and ofb 

Remove the unused CFB/OFB implementation.
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 00b05e51
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Showing with 8 additions and 411 deletions
drivers/crypto/atmel-aes.c
View file @ a16144bd
......@@ -46,11 +46,6 @@
#define ATMEL_AES_BUFFER_ORDER 2
#define ATMEL_AES_BUFFER_SIZE (PAGE_SIZE << ATMEL_AES_BUFFER_ORDER)
#define CFB8_BLOCK_SIZE 1
#define CFB16_BLOCK_SIZE 2
#define CFB32_BLOCK_SIZE 4
#define CFB64_BLOCK_SIZE 8
#define SIZE_IN_WORDS(x) ((x) >> 2)
/* AES flags */
......@@ -60,12 +55,6 @@
#define AES_FLAGS_OPMODE_MASK (AES_MR_OPMOD_MASK | AES_MR_CFBS_MASK)
#define AES_FLAGS_ECB AES_MR_OPMOD_ECB
#define AES_FLAGS_CBC AES_MR_OPMOD_CBC
#define AES_FLAGS_OFB AES_MR_OPMOD_OFB
#define AES_FLAGS_CFB128 (AES_MR_OPMOD_CFB | AES_MR_CFBS_128b)
#define AES_FLAGS_CFB64 (AES_MR_OPMOD_CFB | AES_MR_CFBS_64b)
#define AES_FLAGS_CFB32 (AES_MR_OPMOD_CFB | AES_MR_CFBS_32b)
#define AES_FLAGS_CFB16 (AES_MR_OPMOD_CFB | AES_MR_CFBS_16b)
#define AES_FLAGS_CFB8 (AES_MR_OPMOD_CFB | AES_MR_CFBS_8b)
#define AES_FLAGS_CTR AES_MR_OPMOD_CTR
#define AES_FLAGS_GCM AES_MR_OPMOD_GCM
#define AES_FLAGS_XTS AES_MR_OPMOD_XTS
......@@ -87,7 +76,6 @@
struct atmel_aes_caps {
bool has_dualbuff;
bool has_cfb64;
bool has_gcm;
bool has_xts;
bool has_authenc;
......@@ -860,22 +848,6 @@ static int atmel_aes_dma_start(struct atmel_aes_dev *dd,
int err;
switch (dd->ctx->block_size) {
case CFB8_BLOCK_SIZE:
addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
maxburst = 1;
break;
case CFB16_BLOCK_SIZE:
addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
maxburst = 1;
break;
case CFB32_BLOCK_SIZE:
case CFB64_BLOCK_SIZE:
addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
maxburst = 1;
break;
case AES_BLOCK_SIZE:
addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
maxburst = dd->caps.max_burst_size;
......@@ -1103,7 +1075,7 @@ static int atmel_aes_crypt(struct skcipher_request *req, unsigned long mode)
}
/*
* ECB, CBC, CFB, OFB or CTR mode require the plaintext and ciphertext
* ECB, CBC or CTR mode require the plaintext and ciphertext
* to have a positve integer length.
*/
if (!req->cryptlen && opmode != AES_FLAGS_XTS)
......@@ -1113,27 +1085,7 @@ static int atmel_aes_crypt(struct skcipher_request *req, unsigned long mode)
!IS_ALIGNED(req->cryptlen, crypto_skcipher_blocksize(skcipher)))
return -EINVAL;
switch (mode & AES_FLAGS_OPMODE_MASK) {
case AES_FLAGS_CFB8:
ctx->block_size = CFB8_BLOCK_SIZE;
break;
case AES_FLAGS_CFB16:
ctx->block_size = CFB16_BLOCK_SIZE;
break;
case AES_FLAGS_CFB32:
ctx->block_size = CFB32_BLOCK_SIZE;
break;
case AES_FLAGS_CFB64:
ctx->block_size = CFB64_BLOCK_SIZE;
break;
default:
ctx->block_size = AES_BLOCK_SIZE;
break;
}
ctx->is_aead = false;
rctx = skcipher_request_ctx(req);
......@@ -1188,66 +1140,6 @@ static int atmel_aes_cbc_decrypt(struct skcipher_request *req)
return atmel_aes_crypt(req, AES_FLAGS_CBC);
}
static int atmel_aes_ofb_encrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_OFB | AES_FLAGS_ENCRYPT);
}
static int atmel_aes_ofb_decrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_OFB);
}
static int atmel_aes_cfb_encrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB128 | AES_FLAGS_ENCRYPT);
}
static int atmel_aes_cfb_decrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB128);
}
static int atmel_aes_cfb64_encrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB64 | AES_FLAGS_ENCRYPT);
}
static int atmel_aes_cfb64_decrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB64);
}
static int atmel_aes_cfb32_encrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB32 | AES_FLAGS_ENCRYPT);
}
static int atmel_aes_cfb32_decrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB32);
}
static int atmel_aes_cfb16_encrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB16 | AES_FLAGS_ENCRYPT);
}
static int atmel_aes_cfb16_decrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB16);
}
static int atmel_aes_cfb8_encrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB8 | AES_FLAGS_ENCRYPT);
}
static int atmel_aes_cfb8_decrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CFB8);
}
static int atmel_aes_ctr_encrypt(struct skcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_CTR | AES_FLAGS_ENCRYPT);
......@@ -1318,76 +1210,6 @@ static struct skcipher_alg aes_algs[] = {
.decrypt = atmel_aes_cbc_decrypt,
.ivsize = AES_BLOCK_SIZE,
},
{
.base.cra_name = "ofb(aes)",
.base.cra_driver_name = "atmel-ofb-aes",
.base.cra_blocksize = 1,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = atmel_aes_setkey,
.encrypt = atmel_aes_ofb_encrypt,
.decrypt = atmel_aes_ofb_decrypt,
.ivsize = AES_BLOCK_SIZE,
},
{
.base.cra_name = "cfb(aes)",
.base.cra_driver_name = "atmel-cfb-aes",
.base.cra_blocksize = 1,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = atmel_aes_setkey,
.encrypt = atmel_aes_cfb_encrypt,
.decrypt = atmel_aes_cfb_decrypt,
.ivsize = AES_BLOCK_SIZE,
},
{
.base.cra_name = "cfb32(aes)",
.base.cra_driver_name = "atmel-cfb32-aes",
.base.cra_blocksize = CFB32_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = atmel_aes_setkey,
.encrypt = atmel_aes_cfb32_encrypt,
.decrypt = atmel_aes_cfb32_decrypt,
.ivsize = AES_BLOCK_SIZE,
},
{
.base.cra_name = "cfb16(aes)",
.base.cra_driver_name = "atmel-cfb16-aes",
.base.cra_blocksize = CFB16_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = atmel_aes_setkey,
.encrypt = atmel_aes_cfb16_encrypt,
.decrypt = atmel_aes_cfb16_decrypt,
.ivsize = AES_BLOCK_SIZE,
},
{
.base.cra_name = "cfb8(aes)",
.base.cra_driver_name = "atmel-cfb8-aes",
.base.cra_blocksize = CFB8_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = atmel_aes_setkey,
.encrypt = atmel_aes_cfb8_encrypt,
.decrypt = atmel_aes_cfb8_decrypt,
.ivsize = AES_BLOCK_SIZE,
},
{
.base.cra_name = "ctr(aes)",
.base.cra_driver_name = "atmel-ctr-aes",
......@@ -1404,21 +1226,6 @@ static struct skcipher_alg aes_algs[] = {
},
};
static struct skcipher_alg aes_cfb64_alg = {
.base.cra_name = "cfb64(aes)",
.base.cra_driver_name = "atmel-cfb64-aes",
.base.cra_blocksize = CFB64_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = atmel_aes_setkey,
.encrypt = atmel_aes_cfb64_encrypt,
.decrypt = atmel_aes_cfb64_decrypt,
.ivsize = AES_BLOCK_SIZE,
};
/* gcm aead functions */
......@@ -2407,9 +2214,6 @@ static void atmel_aes_unregister_algs(struct atmel_aes_dev *dd)
if (dd->caps.has_gcm)
crypto_unregister_aead(&aes_gcm_alg);
if (dd->caps.has_cfb64)
crypto_unregister_skcipher(&aes_cfb64_alg);
for (i = 0; i < ARRAY_SIZE(aes_algs); i++)
crypto_unregister_skcipher(&aes_algs[i]);
}
......@@ -2434,14 +2238,6 @@ static int atmel_aes_register_algs(struct atmel_aes_dev *dd)
goto err_aes_algs;
}
if (dd->caps.has_cfb64) {
atmel_aes_crypto_alg_init(&aes_cfb64_alg.base);
err = crypto_register_skcipher(&aes_cfb64_alg);
if (err)
goto err_aes_cfb64_alg;
}
if (dd->caps.has_gcm) {
atmel_aes_crypto_alg_init(&aes_gcm_alg.base);
......@@ -2482,8 +2278,6 @@ static int atmel_aes_register_algs(struct atmel_aes_dev *dd)
err_aes_xts_alg:
crypto_unregister_aead(&aes_gcm_alg);
err_aes_gcm_alg:
crypto_unregister_skcipher(&aes_cfb64_alg);
err_aes_cfb64_alg:
i = ARRAY_SIZE(aes_algs);
err_aes_algs:
for (j = 0; j < i; j++)
......@@ -2495,7 +2289,6 @@ static int atmel_aes_register_algs(struct atmel_aes_dev *dd)
static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
{
dd->caps.has_dualbuff = 0;
dd->caps.has_cfb64 = 0;
dd->caps.has_gcm = 0;
dd->caps.has_xts = 0;
dd->caps.has_authenc = 0;
......@@ -2507,7 +2300,6 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
case 0x600:
case 0x500:
dd->caps.has_dualbuff = 1;
dd->caps.has_cfb64 = 1;
dd->caps.has_gcm = 1;
dd->caps.has_xts = 1;
dd->caps.has_authenc = 1;
......@@ -2515,13 +2307,11 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
break;
case 0x200:
dd->caps.has_dualbuff = 1;
dd->caps.has_cfb64 = 1;
dd->caps.has_gcm = 1;
dd->caps.max_burst_size = 4;
break;
case 0x130:
dd->caps.has_dualbuff = 1;
dd->caps.has_cfb64 = 1;
dd->caps.max_burst_size = 4;
break;
case 0x120:
......
drivers/crypto/atmel-tdes.c
View file @ a16144bd
......@@ -45,11 +45,6 @@
#define TDES_FLAGS_OPMODE_MASK (TDES_MR_OPMOD_MASK | TDES_MR_CFBS_MASK)
#define TDES_FLAGS_ECB TDES_MR_OPMOD_ECB
#define TDES_FLAGS_CBC TDES_MR_OPMOD_CBC
#define TDES_FLAGS_OFB TDES_MR_OPMOD_OFB
#define TDES_FLAGS_CFB64 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_64b)
#define TDES_FLAGS_CFB32 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_32b)
#define TDES_FLAGS_CFB16 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_16b)
#define TDES_FLAGS_CFB8 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_8b)
#define TDES_FLAGS_MODE_MASK (TDES_FLAGS_OPMODE_MASK | TDES_FLAGS_ENCRYPT)
......@@ -60,13 +55,8 @@
#define ATMEL_TDES_QUEUE_LENGTH 50
#define CFB8_BLOCK_SIZE 1
#define CFB16_BLOCK_SIZE 2
#define CFB32_BLOCK_SIZE 4
struct atmel_tdes_caps {
bool has_dma;
u32 has_cfb_3keys;
};
struct atmel_tdes_dev;
......@@ -376,7 +366,6 @@ static int atmel_tdes_crypt_pdc(struct atmel_tdes_dev *dd,
dma_addr_t dma_addr_in,
dma_addr_t dma_addr_out, int length)
{
struct atmel_tdes_reqctx *rctx = skcipher_request_ctx(dd->req);
int len32;
dd->dma_size = length;
......@@ -386,19 +375,7 @@ static int atmel_tdes_crypt_pdc(struct atmel_tdes_dev *dd,
DMA_TO_DEVICE);
}
switch (rctx->mode & TDES_FLAGS_OPMODE_MASK) {
case TDES_FLAGS_CFB8:
len32 = DIV_ROUND_UP(length, sizeof(u8));
break;
case TDES_FLAGS_CFB16:
len32 = DIV_ROUND_UP(length, sizeof(u16));
break;
default:
len32 = DIV_ROUND_UP(length, sizeof(u32));
break;
}
atmel_tdes_write(dd, TDES_PTCR, TDES_PTCR_TXTDIS|TDES_PTCR_RXTDIS);
atmel_tdes_write(dd, TDES_TPR, dma_addr_in);
......@@ -419,7 +396,6 @@ static int atmel_tdes_crypt_dma(struct atmel_tdes_dev *dd,
dma_addr_t dma_addr_in,
dma_addr_t dma_addr_out, int length)
{
struct atmel_tdes_reqctx *rctx = skcipher_request_ctx(dd->req);
struct scatterlist sg[2];
struct dma_async_tx_descriptor *in_desc, *out_desc;
enum dma_slave_buswidth addr_width;
......@@ -431,19 +407,7 @@ static int atmel_tdes_crypt_dma(struct atmel_tdes_dev *dd,
DMA_TO_DEVICE);
}
switch (rctx->mode & TDES_FLAGS_OPMODE_MASK) {
case TDES_FLAGS_CFB8:
addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
break;
case TDES_FLAGS_CFB16:
addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
break;
default:
addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
break;
}
dd->dma_lch_in.dma_conf.dst_addr_width = addr_width;
dd->dma_lch_out.dma_conf.src_addr_width = addr_width;
......@@ -680,39 +644,11 @@ static int atmel_tdes_crypt(struct skcipher_request *req, unsigned long mode)
if (!req->cryptlen)
return 0;
switch (mode & TDES_FLAGS_OPMODE_MASK) {
case TDES_FLAGS_CFB8:
if (!IS_ALIGNED(req->cryptlen, CFB8_BLOCK_SIZE)) {
dev_dbg(dev, "request size is not exact amount of CFB8 blocks\n");
return -EINVAL;
}
ctx->block_size = CFB8_BLOCK_SIZE;
break;
case TDES_FLAGS_CFB16:
if (!IS_ALIGNED(req->cryptlen, CFB16_BLOCK_SIZE)) {
dev_dbg(dev, "request size is not exact amount of CFB16 blocks\n");
return -EINVAL;
}
ctx->block_size = CFB16_BLOCK_SIZE;
break;
case TDES_FLAGS_CFB32:
if (!IS_ALIGNED(req->cryptlen, CFB32_BLOCK_SIZE)) {
dev_dbg(dev, "request size is not exact amount of CFB32 blocks\n");
return -EINVAL;
}
ctx->block_size = CFB32_BLOCK_SIZE;
break;
default:
if (!IS_ALIGNED(req->cryptlen, DES_BLOCK_SIZE)) {
dev_dbg(dev, "request size is not exact amount of DES blocks\n");
return -EINVAL;
}
ctx->block_size = DES_BLOCK_SIZE;
break;
}
rctx->mode = mode;
......@@ -832,55 +768,6 @@ static int atmel_tdes_cbc_decrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CBC);
}
static int atmel_tdes_cfb_encrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB64 | TDES_FLAGS_ENCRYPT);
}
static int atmel_tdes_cfb_decrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB64);
}
static int atmel_tdes_cfb8_encrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB8 | TDES_FLAGS_ENCRYPT);
}
static int atmel_tdes_cfb8_decrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB8);
}
static int atmel_tdes_cfb16_encrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB16 | TDES_FLAGS_ENCRYPT);
}
static int atmel_tdes_cfb16_decrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB16);
}
static int atmel_tdes_cfb32_encrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB32 | TDES_FLAGS_ENCRYPT);
}
static int atmel_tdes_cfb32_decrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_CFB32);
}
static int atmel_tdes_ofb_encrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_OFB | TDES_FLAGS_ENCRYPT);
}
static int atmel_tdes_ofb_decrypt(struct skcipher_request *req)
{
return atmel_tdes_crypt(req, TDES_FLAGS_OFB);
}
static int atmel_tdes_init_tfm(struct crypto_skcipher *tfm)
{
......@@ -931,71 +818,6 @@ static struct skcipher_alg tdes_algs[] = {
.encrypt = atmel_tdes_cbc_encrypt,
.decrypt = atmel_tdes_cbc_decrypt,
},
{
.base.cra_name = "cfb(des)",
.base.cra_driver_name = "atmel-cfb-des",
.base.cra_blocksize = DES_BLOCK_SIZE,
.base.cra_alignmask = 0x7,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
.setkey = atmel_des_setkey,
.encrypt = atmel_tdes_cfb_encrypt,
.decrypt = atmel_tdes_cfb_decrypt,
},
{
.base.cra_name = "cfb8(des)",
.base.cra_driver_name = "atmel-cfb8-des",
.base.cra_blocksize = CFB8_BLOCK_SIZE,
.base.cra_alignmask = 0,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
.setkey = atmel_des_setkey,
.encrypt = atmel_tdes_cfb8_encrypt,
.decrypt = atmel_tdes_cfb8_decrypt,
},
{
.base.cra_name = "cfb16(des)",
.base.cra_driver_name = "atmel-cfb16-des",
.base.cra_blocksize = CFB16_BLOCK_SIZE,
.base.cra_alignmask = 0x1,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
.setkey = atmel_des_setkey,
.encrypt = atmel_tdes_cfb16_encrypt,
.decrypt = atmel_tdes_cfb16_decrypt,
},
{
.base.cra_name = "cfb32(des)",
.base.cra_driver_name = "atmel-cfb32-des",
.base.cra_blocksize = CFB32_BLOCK_SIZE,
.base.cra_alignmask = 0x3,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
.setkey = atmel_des_setkey,
.encrypt = atmel_tdes_cfb32_encrypt,
.decrypt = atmel_tdes_cfb32_decrypt,
},
{
.base.cra_name = "ofb(des)",
.base.cra_driver_name = "atmel-ofb-des",
.base.cra_blocksize = 1,
.base.cra_alignmask = 0x7,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
.setkey = atmel_des_setkey,
.encrypt = atmel_tdes_ofb_encrypt,
.decrypt = atmel_tdes_ofb_decrypt,
},
{
.base.cra_name = "ecb(des3_ede)",
.base.cra_driver_name = "atmel-ecb-tdes",
......@@ -1021,19 +843,6 @@ static struct skcipher_alg tdes_algs[] = {
.decrypt = atmel_tdes_cbc_decrypt,
.ivsize = DES_BLOCK_SIZE,
},
{
.base.cra_name = "ofb(des3_ede)",
.base.cra_driver_name = "atmel-ofb-tdes",
.base.cra_blocksize = DES_BLOCK_SIZE,
.base.cra_alignmask = 0x7,
.min_keysize = DES3_EDE_KEY_SIZE,
.max_keysize = DES3_EDE_KEY_SIZE,
.setkey = atmel_tdes_setkey,
.encrypt = atmel_tdes_ofb_encrypt,
.decrypt = atmel_tdes_ofb_decrypt,
.ivsize = DES_BLOCK_SIZE,
},
};
static void atmel_tdes_queue_task(unsigned long data)
......@@ -1121,14 +930,12 @@ static void atmel_tdes_get_cap(struct atmel_tdes_dev *dd)
{
dd->caps.has_dma = 0;
dd->caps.has_cfb_3keys = 0;
/* keep only major version number */
switch (dd->hw_version & 0xf00) {
case 0x800:
case 0x700:
dd->caps.has_dma = 1;
dd->caps.has_cfb_3keys = 1;
break;
case 0x600:
break;
......
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