Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/drivers/crypto/msm/inc/qce.h b/drivers/crypto/msm/inc/qce.h
new file mode 100644
index 0000000..7230036
--- /dev/null
+++ b/drivers/crypto/msm/inc/qce.h
@@ -0,0 +1,160 @@
+/* Qualcomm Crypto Engine driver API
+ *
+ * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#ifndef __CRYPTO_MSM_QCE_H
+#define __CRYPTO_MSM_QCE_H
+
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/crypto.h>
+
+#include <crypto/algapi.h>
+#include <crypto/aes.h>
+#include <crypto/des.h>
+#include <crypto/sha.h>
+#include <crypto/aead.h>
+#include <crypto/authenc.h>
+#include <crypto/scatterwalk.h>
+
+/* SHA digest size in bytes */
+#define SHA256_DIGESTSIZE 32
+#define SHA1_DIGESTSIZE 20
+
+/* key size in bytes */
+#define HMAC_KEY_SIZE (SHA1_DIGESTSIZE) /* hmac-sha1 */
+#define SHA_HMAC_KEY_SIZE 64
+#define DES_KEY_SIZE 8
+#define TRIPLE_DES_KEY_SIZE 24
+#define AES128_KEY_SIZE 16
+#define AES192_KEY_SIZE 24
+#define AES256_KEY_SIZE 32
+#define MAX_CIPHER_KEY_SIZE AES256_KEY_SIZE
+
+/* iv length in bytes */
+#define AES_IV_LENGTH 16
+#define DES_IV_LENGTH 8
+#define MAX_IV_LENGTH AES_IV_LENGTH
+
+/* Maximum number of bytes per transfer */
+#define QCE_MAX_OPER_DATA 0x8000
+
+/* Maximum Nonce bytes */
+#define MAX_NONCE 16
+
+typedef void (*qce_comp_func_ptr_t)(void *areq,
+ unsigned char *icv, unsigned char *iv, int ret);
+
+/* Cipher algorithms supported */
+enum qce_cipher_alg_enum {
+ CIPHER_ALG_DES = 0,
+ CIPHER_ALG_3DES = 1,
+ CIPHER_ALG_AES = 2,
+ CIPHER_ALG_LAST
+};
+
+/* Hash and hmac algorithms supported */
+enum qce_hash_alg_enum {
+ QCE_HASH_SHA1 = 0,
+ QCE_HASH_SHA256 = 1,
+ QCE_HASH_SHA1_HMAC = 2,
+ QCE_HASH_SHA256_HMAC = 3,
+ QCE_HASH_AES_CMAC = 4,
+ QCE_HASH_LAST
+};
+
+/* Cipher encryption/decryption operations */
+enum qce_cipher_dir_enum {
+ QCE_ENCRYPT = 0,
+ QCE_DECRYPT = 1,
+ QCE_CIPHER_DIR_LAST
+};
+
+/* Cipher algorithms modes */
+enum qce_cipher_mode_enum {
+ QCE_MODE_CBC = 0,
+ QCE_MODE_ECB = 1,
+ QCE_MODE_CTR = 2,
+ QCE_MODE_XTS = 3,
+ QCE_MODE_CCM = 4,
+ QCE_CIPHER_MODE_LAST
+};
+
+/* Cipher operation type */
+enum qce_req_op_enum {
+ QCE_REQ_ABLK_CIPHER = 0,
+ QCE_REQ_ABLK_CIPHER_NO_KEY = 1,
+ QCE_REQ_AEAD = 2,
+ QCE_REQ_LAST
+};
+
+/* Algorithms/features supported in CE HW engine */
+struct ce_hw_support {
+ bool sha1_hmac_20; /* Supports 20 bytes of HMAC key*/
+ bool sha1_hmac; /* supports max HMAC key of 64 bytes*/
+ bool sha256_hmac; /* supports max HMAC key of 64 bytes*/
+ bool sha_hmac; /* supports SHA1 and SHA256 MAX HMAC key of 64 bytes*/
+ bool cmac;
+ bool aes_key_192;
+ bool aes_xts;
+ bool aes_ccm;
+ bool ota;
+};
+
+/* Sha operation parameters */
+struct qce_sha_req {
+ qce_comp_func_ptr_t qce_cb; /* call back */
+ enum qce_hash_alg_enum alg; /* sha algorithm */
+ unsigned char *digest; /* sha digest */
+ struct scatterlist *src; /* pointer to scatter list entry */
+ uint32_t auth_data[4]; /* byte count */
+ unsigned char *authkey; /* auth key */
+ unsigned int authklen; /* auth key length */
+ bool first_blk; /* first block indicator */
+ bool last_blk; /* last block indicator */
+ unsigned int size; /* data length in bytes */
+ void *areq;
+};
+
+struct qce_req {
+ enum qce_req_op_enum op; /* operation type */
+ qce_comp_func_ptr_t qce_cb; /* call back */
+ void *areq;
+ enum qce_cipher_alg_enum alg; /* cipher algorithms*/
+ enum qce_cipher_dir_enum dir; /* encryption? decryption? */
+ enum qce_cipher_mode_enum mode; /* algorithm mode */
+ unsigned char *authkey; /* authentication key */
+ unsigned int authklen; /* authentication key kength */
+ unsigned int authsize; /* authentication key kength */
+ unsigned char nonce[MAX_NONCE];/* nonce for ccm mode */
+ unsigned char *assoc; /* Ptr to formatted associated data */
+ unsigned int assoclen; /* Formatted associated data length */
+ struct scatterlist *asg; /* Formatted associated data sg */
+ unsigned char *enckey; /* cipher key */
+ unsigned int encklen; /* cipher key length */
+ unsigned char *iv; /* initialization vector */
+ unsigned int ivsize; /* initialization vector size*/
+ unsigned int cryptlen; /* data length */
+ unsigned int use_pmem; /* is source of data PMEM allocated? */
+ struct qcedev_pmem_info *pmem; /* pointer to pmem_info structure*/
+};
+
+void *qce_open(struct platform_device *pdev, int *rc);
+int qce_close(void *handle);
+int qce_aead_req(void *handle, struct qce_req *req);
+int qce_ablk_cipher_req(void *handle, struct qce_req *req);
+int qce_hw_support(void *handle, struct ce_hw_support *support);
+int qce_process_sha_req(void *handle, struct qce_sha_req *s_req);
+
+#endif /* __CRYPTO_MSM_QCE_H */