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Subject[PATCH 3/6] crypto: omap: convert to new crypto engine API
Date
This patch convert the driver to the new crypto engine API.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
---
drivers/crypto/omap-aes.c | 17 +++++++++++++----
drivers/crypto/omap-aes.h | 3 +++
drivers/crypto/omap-des.c | 20 ++++++++++++++++----
3 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index fbec0a2e76dd..518b94628166 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -414,8 +414,9 @@ static int omap_aes_handle_queue(struct omap_aes_dev *dd,
}

static int omap_aes_prepare_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ void *areq)
{
+ struct ablkcipher_request *req = container_of(areq, struct ablkcipher_request, base);
struct omap_aes_ctx *ctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));
struct omap_aes_reqctx *rctx = ablkcipher_request_ctx(req);
@@ -468,8 +469,9 @@ static int omap_aes_prepare_req(struct crypto_engine *engine,
}

static int omap_aes_crypt_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ void *areq)
{
+ struct ablkcipher_request *req = container_of(areq, struct ablkcipher_request, base);
struct omap_aes_reqctx *rctx = ablkcipher_request_ctx(req);
struct omap_aes_dev *dd = rctx->dd;

@@ -601,6 +603,11 @@ static int omap_aes_ctr_decrypt(struct ablkcipher_request *req)
return omap_aes_crypt(req, FLAGS_CTR);
}

+static int omap_aes_prepare_req(struct crypto_engine *engine,
+ void *req);
+static int omap_aes_crypt_req(struct crypto_engine *engine,
+ void *req);
+
static int omap_aes_cra_init(struct crypto_tfm *tfm)
{
const char *name = crypto_tfm_alg_name(tfm);
@@ -616,6 +623,10 @@ static int omap_aes_cra_init(struct crypto_tfm *tfm)

tfm->crt_ablkcipher.reqsize = sizeof(struct omap_aes_reqctx);

+ ctx->enginectx.op.prepare_request = omap_aes_prepare_req;
+ ctx->enginectx.op.unprepare_request = NULL;
+ ctx->enginectx.op.do_one_request = omap_aes_crypt_req;
+
return 0;
}

@@ -1119,8 +1130,6 @@ static int omap_aes_probe(struct platform_device *pdev)
goto err_engine;
}

- dd->engine->prepare_cipher_request = omap_aes_prepare_req;
- dd->engine->cipher_one_request = omap_aes_crypt_req;
err = crypto_engine_start(dd->engine);
if (err)
goto err_engine;
diff --git a/drivers/crypto/omap-aes.h b/drivers/crypto/omap-aes.h
index 8906342e2b9a..f6ce94907ade 100644
--- a/drivers/crypto/omap-aes.h
+++ b/drivers/crypto/omap-aes.h
@@ -13,6 +13,8 @@
#ifndef __OMAP_AES_H__
#define __OMAP_AES_H__

+#include <crypto/engine.h>
+
#define DST_MAXBURST 4
#define DMA_MIN (DST_MAXBURST * sizeof(u32))

@@ -95,6 +97,7 @@ struct omap_aes_gcm_result {
};

struct omap_aes_ctx {
+ struct crypto_engine_reqctx enginectx;
int keylen;
u32 key[AES_KEYSIZE_256 / sizeof(u32)];
u8 nonce[4];
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index ebc5c0f11f03..c6a3b0490616 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -86,6 +86,7 @@
#define FLAGS_OUT_DATA_ST_SHIFT 10

struct omap_des_ctx {
+ struct crypto_engine_reqctx enginectx;
struct omap_des_dev *dd;

int keylen;
@@ -526,8 +527,9 @@ static int omap_des_handle_queue(struct omap_des_dev *dd,
}

static int omap_des_prepare_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ void *areq)
{
+ struct ablkcipher_request *req = container_of(areq, struct ablkcipher_request, base);
struct omap_des_ctx *ctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));
struct omap_des_dev *dd = omap_des_find_dev(ctx);
@@ -582,8 +584,9 @@ static int omap_des_prepare_req(struct crypto_engine *engine,
}

static int omap_des_crypt_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ void *areq)
{
+ struct ablkcipher_request *req = container_of(areq, struct ablkcipher_request, base);
struct omap_des_ctx *ctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));
struct omap_des_dev *dd = omap_des_find_dev(ctx);
@@ -695,12 +698,23 @@ static int omap_des_cbc_decrypt(struct ablkcipher_request *req)
return omap_des_crypt(req, FLAGS_CBC);
}

+static int omap_des_prepare_req(struct crypto_engine *engine,
+ void *areq);
+static int omap_des_crypt_req(struct crypto_engine *engine,
+ void *areq);
+
static int omap_des_cra_init(struct crypto_tfm *tfm)
{
+ struct omap_des_ctx *ctx = crypto_tfm_ctx(tfm);
+
pr_debug("enter\n");

tfm->crt_ablkcipher.reqsize = sizeof(struct omap_des_reqctx);

+ ctx->enginectx.op.prepare_request = omap_des_prepare_req;
+ ctx->enginectx.op.unprepare_request = NULL;
+ ctx->enginectx.op.do_one_request = omap_des_crypt_req;
+
return 0;
}

@@ -1046,8 +1060,6 @@ static int omap_des_probe(struct platform_device *pdev)
goto err_engine;
}

- dd->engine->prepare_cipher_request = omap_des_prepare_req;
- dd->engine->cipher_one_request = omap_des_crypt_req;
err = crypto_engine_start(dd->engine);
if (err)
goto err_engine;
--
2.13.6
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