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/** @addtogroup hash_defines
*
* @author @htmlonly © @endhtmlonly 2013
* Mikhail Avkhimenia <mikhail@avkhimenia.net>
*
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2013 Mikhail Avkhimenia <mikhail@avkhimenia.net>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**@{*/
/** @cond */
#ifdef LIBOPENCM3_HASH_H
/** @endcond */
#ifndef LIBOPENCM3_HASH_COMMON_F24_H
#define LIBOPENCM3_HASH_COMMON_F24_H
/* --- Convenience macros -------------------------------------------------- */
/****************************************************************************/
/** @defgroup hash_reg_base HASH register base addresses
@ingroup STM32F_hash_defines
@{*/
#define HASH_BASE (PERIPH_BASE_AHB2 + 0x60400)
#define HASH HASH_BASE
/**@}*/
/* --- HASH registers ------------------------------------------------------ */
/* HASH control register (HASH_CR) */
#define HASH_CR MMIO32(HASH + 0x00)
/* HASH data input register (HASH_DIR) */
#define HASH_DIN MMIO32(HASH + 0x04)
/* HASH start register (HASH_STR) */
#define HASH_STR MMIO32(HASH + 0x08)
/* HASH digest registers (HASH_HR[5]) */
#define HASH_HR (&MMIO32(HASH + 0x0C)) /* x5 */
/* HASH interrupt enable register (HASH_IMR) */
#define HASH_IMR MMIO32(HASH + 0x20)
/* HASH status register (HASH_SR) */
#define HASH_SR MMIO32(HASH + 0x28)
/* HASH context swap registers (HASH_CSR[51]) */
#define HASH_CSR (&MMIO32(HASH + 0xF8)) /* x51 */
/* --- HASH_CR values ------------------------------------------------------ */
/* INIT: Initialize message digest calculation */
#define HASH_CR_INIT (1 << 2)
/* DMAE: DMA enable */
#define HASH_CR_DMAE (1 << 3)
/* DATATYPE: Data type selection */
/****************************************************************************/
/** @defgroup hash_data_type HASH Data Type
@ingroup hash_defines
@{*/
#define HASH_DATA_32BIT (0 << 4)
#define HASH_DATA_16BIT (1 << 4)
#define HASH_DATA_8BIT (2 << 4)
#define HASH_DATA_BITSTRING (3 << 4)
/**@}*/
#define HASH_CR_DATATYPE (3 << 4)
/* MODE: Mode selection */
/****************************************************************************/
/** @defgroup hash_mode HASH Mode
@ingroup hash_defines
@{*/
#define HASH_MODE_HASH (0 << 6)
#define HASH_MODE_HMAC (1 << 6)
/**@}*/
#define HASH_CR_MODE (1 << 6)
/* ALGO: Algorithm selection */
/****************************************************************************/
/** @defgroup hash_algorithm HASH Algorithm
@ingroup hash_defines
@{*/
#define HASH_ALGO_SHA1 (0 << 7)
#define HASH_ALGO_MD5 (1 << 7)
/**@}*/
#define HASH_CR_ALGO (1 << 7)
/* NBW: Number of words already pushed */
#define HASH_CR_NBW (15 << 8)
/* DINNE: DIN(Data input register) not empty */
#define HASH_CR_DINNE (1 << 12)
/* LKEY: Long key selection */
/****************************************************************************/
/** @defgroup hash_key_length HASH Key length
@ingroup hash_defines
@{*/
#define HASH_KEY_SHORT (0 << 16)
#define HASH_KEY_LONG (1 << 16)
/**@}*/
#define HASH_CR_LKEY (1 << 16)
/* --- HASH_STR values ----------------------------------------------------- */
/* NBLW: Number of valid bits in the last word of the message in the bit string
*/
#define HASH_STR_NBW (31 << 0)
/* DCAL: Digest calculation */
#define HASH_STR_DCAL (1 << 8)
/* --- HASH_IMR values ----------------------------------------------------- */
/* DINIE: Data input interrupt enable */
#define HASH_IMR_DINIE (1 << 0)
/* DCIE: Digest calculation completion interrupt enable */
#define HASH_IMR_DCIE (1 << 1)
/* --- HASH_SR values ------------------------------------------------------ */
/* DINIS: Data input interrupt status */
#define HASH_SR_DINIS (1 << 0)
/* DCIS: Digest calculation completion interrupt status */
#define HASH_SR_DCIS (1 << 1)
/* DMAS: DMA Status */
#define HASH_SR_DMAS (1 << 2)
/* BUSY: Busy bit */
#define HASH_SR_BUSY (1 << 3)
/* --- HASH function prototypes -------------------------------------------- */
BEGIN_DECLS
void hash_set_mode(uint8_t mode);
void hash_set_algorithm(uint8_t algorithm);
void hash_set_data_type(uint8_t datatype);
void hash_set_key_length(uint8_t keylength);
void hash_set_last_word_valid_bits(uint8_t validbits);
void hash_init(void);
void hash_add_data(uint32_t data);
void hash_digest(void);
void hash_get_result(uint32_t *data);
END_DECLS
/**@}*/
#endif
/** @cond */
#else
#warning "hash_common_f24.h should not be included explicitly, only via hash.h"
#endif
/** @endcond */
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