diff options
Diffstat (limited to 'cpu/arm920t/wmt/cypherif.c')
| -rwxr-xr-x | cpu/arm920t/wmt/cypherif.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/cpu/arm920t/wmt/cypherif.c b/cpu/arm920t/wmt/cypherif.c new file mode 100755 index 0000000..7077c83 --- /dev/null +++ b/cpu/arm920t/wmt/cypherif.c @@ -0,0 +1,180 @@ +/*++
+Copyright (c) 2010 WonderMedia Technologies, Inc.
+
+This program is free software: you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, either version 2 of the License, or (at your option) any later
+version.
+
+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. You
+should have received a copy of the GNU General Public License along with this
+program. If not, see http://www.gnu.org/licenses/>.
+
+WonderMedia Technologies, Inc.
+10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
+--*/
+/*--
+Revision History:
+-------------------------------------------------------------------------------
+
+--*/
+
+#include "common.h"
+#include <malloc.h>
+
+#include <stdarg.h>
+#include "../../../board/wmt/include/wmt_clk.h"
+#include "cypher.h"
+
+
+
+//#define DEBUG_CYPHER
+#ifdef DEBUG_CYPHER
+
+ #define DPRINTK printf
+
+ #define DPRINT_FUNC_IN() DPRINTK("--- Enter %s() ---\n", __FUNCTION__)
+ #define DPRINT_FUNC_OUT() DPRINTK("=== Exit %s() ===\n", __FUNCTION__)
+#else
+ #define DPRINT_FUNC_IN()
+ #define DPRINT_FUNC_OUT()
+#endif
+
+/****************************************************************/
+extern int auto_pll_divisor(enum dev_id dev, enum clk_cmd cmd, int unit, int freq);
+
+
+
+/* NOTICE: the input data length of SHA256 must be multiple of 4Bytes */
+u8 Input_Plainttext[] = "abc";
+
+u8 Output_Plainttext[3] = {0};
+
+
+
+
+u8 Plaintext[DATA_MAX + 1]; // for output of decrypt
+
+u8 Ciphertext[DATA_MAX + 1]; // for output of encrypt
+
+int text_len;
+
+
+
+/****************************************************************/
+int Cypher_Action( IN OUT cypher_base_cfg_t *cypher_base );
+void Clear_All_Buf(void);
+void Set_Input_Buf( IN unsigned int src_addr, unsigned int src_size, unsigned int dec_enc );
+void Get_Output_Buf( OUT unsigned int dest_addr, unsigned int dest_size, unsigned int dec_enc );
+void Show_Register(int start, int end);
+void cypher_isr(void);
+
+
+
+
+
+/****************************************************************/
+int cipher_enc_dec( IN OUT cypher_base_cfg_t *cipher_obj )
+{
+ DPRINT_FUNC_IN();
+
+ Clear_All_Buf();
+ Cypher_Action(cipher_obj);
+ Get_Output_Buf(cipher_obj->output_addr, cipher_obj->text_length, cipher_obj->dec_enc);
+
+ DPRINT_FUNC_OUT();
+
+ return 0;
+}
+
+
+
+/****************************************************************/
+void cipher_obj_clear( IN cypher_base_cfg_t *cipher_obj )
+{
+ DPRINT_FUNC_IN();
+
+ cipher_obj->algo_mode = CYPHER_ALGO_SHA256;
+ cipher_obj->op_mode = 0;
+ cipher_obj->dec_enc = CYPHER_DECRYPT;
+ cipher_obj->text_length = 0x0;
+ cipher_obj->key_addr = CYPHER_ZERO;
+ cipher_obj->IV_addr = CYPHER_ZERO;
+
+ cipher_obj->input_addr = CYPHER_ZERO; // address
+ cipher_obj->output_addr = CYPHER_ZERO; // address
+ cipher_obj->INC = 0x0;
+ cipher_obj->sha1_data_length = 0x0;
+ cipher_obj->sha256_data_length = 0x0;
+
+ DPRINT_FUNC_OUT();
+}
+
+
+
+
+/****************************************************************/
+int sha256_action( cypher_base_cfg_t *test_object, u32 input_buf, u32 output_buf)
+{
+ int ret = 0;
+
+ test_object->algo_mode = CYPHER_ALGO_SHA256;
+ test_object->op_mode = 0;
+
+ // encrypt
+ test_object->input_addr = (u32)input_buf; // address
+ test_object->output_addr = (u32)Ciphertext; // address
+
+ test_object->dec_enc = CYPHER_ENCRYPT;
+ cipher_enc_dec(test_object);
+
+ memcpy((void*)output_buf, (void*)Ciphertext, 32);
+
+ return ret;
+}
+
+
+
+/****************************************************************/
+void cypher_initialization(void)
+{
+ auto_pll_divisor(DEV_SAE,CLK_ENABLE,0,0);
+#ifdef CYPHER_INT_ENABLE
+ /* Interrupt setting */
+ set_irq_handlers(IRQ_SAE, cypher_isr);
+ set_int_route(IRQ_SAE, 0);
+ unmask_interrupt(IRQ_SAE);
+#endif
+
+}
+
+void cipher_release(void)
+{
+
+ auto_pll_divisor(DEV_SAE,CLK_DISABLE,0,0);
+
+} /* End of cipher_release() */
+
+
+int cypher_encode(unsigned int buf_in, unsigned int in_len, unsigned int buf_out)
+{
+ cypher_base_cfg_t test_object;
+ int ret = 1;
+
+ cipher_obj_clear(&test_object);
+
+ test_object.sha256_data_length = in_len;
+ test_object.text_length = in_len;
+
+ ret = sha256_action(&test_object, (unsigned int)buf_in, (unsigned int)buf_out);
+
+ return ret;
+}
+
+
+
+
+
+
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