78 lines
3.6 KiB
C
78 lines
3.6 KiB
C
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/************************************************************************************
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* arch/arm/src/stm32/chip/stm32_rng.h
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*
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* Copyright (C) 2012 Max Holtzberg. All rights reserved.
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* Author: Max Holtzberg <mh@uvc.de>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_STC_STM32_CHIP_STM32_RNG_H
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#define __ARCH_ARM_STC_STM32_CHIP_STM32_RNG_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Register Offsets *****************************************************************/
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#define STM32_RNG_CR_OFFSET 0x0000 /* RNG Control Register */
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#define STM32_RNG_SR_OFFSET 0x0004 /* RNG Status Register */
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#define STM32_RNG_DR_OFFSET 0x0008 /* RNG Data Register */
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/* Register Addresses ***************************************************************/
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#define STM32_RNG_CR (STM32_RNG_BASE+STM32_RNG_CR_OFFSET)
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#define STM32_RNG_SR (STM32_RNG_BASE+STM32_RNG_SR_OFFSET)
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#define STM32_RNG_DR (STM32_RNG_BASE+STM32_RNG_DR_OFFSET)
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/* Register Bitfield Definitions ****************************************************/
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/* RNG Control Register */
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#define RNG_CR_RNGEN (1 << 2) /* Bit 2: RNG enable */
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#define RNG_CR_IE (1 << 3) /* Bit 3: Interrupt enable */
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/* RNG Status Register */
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#define RNG_SR_DRDY (1 << 0) /* Bit 0: Data ready */
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#define RNG_SR_CECS (1 << 1) /* Bit 1: Clock error current status */
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#define RNG_SR_SECS (1 << 2) /* Bit 2: Seed error current status */
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#define RNG_SR_CEIS (1 << 5) /* Bit 5: Clock error interrupt status */
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#define RNG_SR_SEIS (1 << 6) /* Bit 6: Seed error interrupt status */
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#endif /* __ARCH_ARM_STC_STM32_CHIP_STM32_RNG_H */
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