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authorClyne Sullivan <tullivan99@gmail.com>2016-11-11 15:15:16 -0500
committerClyne Sullivan <tullivan99@gmail.com>2016-11-11 15:15:16 -0500
commit5a059c8d6ecfe2f98a77570b8b6cf13c500398f7 (patch)
treedb8d337eb96c44feff77d5564eb9da697e8b961b /ChibiOS_16.1.5/community/os/hal/include/hal_rng.h
parent7772ea4579a45bcf63ebd5e68be66ba1a9c72dfa (diff)
tar'd chibi
Diffstat (limited to 'ChibiOS_16.1.5/community/os/hal/include/hal_rng.h')
-rw-r--r--ChibiOS_16.1.5/community/os/hal/include/hal_rng.h136
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diff --git a/ChibiOS_16.1.5/community/os/hal/include/hal_rng.h b/ChibiOS_16.1.5/community/os/hal/include/hal_rng.h
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--- a/ChibiOS_16.1.5/community/os/hal/include/hal_rng.h
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-/*
- RNG for ChibiOS - Copyright (C) 2016 Stephane D'Alu
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-#ifndef _RNG_H_
-#define _RNG_H_
-
-#if (HAL_USE_RNG == TRUE) || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver constants. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver pre-compile time settings. */
-/*===========================================================================*/
-
-/**
- * @name Configuration options
- * @{
- */
-
-/**
- * @brief Enables the @p rngAcquireBus() and @p rngReleaseBus() APIs.
- * @note Disabling this option saves both code and data space.
- */
-#if !defined(RNG_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
-#define RNG_USE_MUTUAL_EXCLUSION TRUE
-#endif
-
-/*===========================================================================*/
-/* Derived constants and error checks. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver data structures and types. */
-/*===========================================================================*/
-
-/**
- * @brief Driver state machine possible states.
- */
-typedef enum {
- RNG_UNINIT, /* Not initialized. */
- RNG_STOP, /* Stopped. */
- RNG_READY, /* Ready. */
-} rngstate_t;
-
-#include "hal_rng_lld.h"
-
-
-/*===========================================================================*/
-/* Driver macros. */
-/*===========================================================================*/
-
-/**
- * @name Low level driver helper macros
- * @{
- */
-
-/**
- * @brief Wakes up the waiting thread.
- *
- * @param[in] rngp pointer to the @p RNGDriver object
- *
- * @notapi
- */
-#define _rng_wakeup_isr(rngp) { \
- osalSysLockFromISR(); \
- osalThreadResumeI(&(rngp)->thread, MSG_OK); \
- osalSysUnlockFromISR(); \
-}
-
-/**
- * @brief Common ISR code.
- * @details This code handles the portable part of the ISR code:
- * - Callback invocation.
- * - Waiting thread wakeup, if any.
- * - Driver state transitions.
- * .
- * @note This macro is meant to be used in the low level drivers
- * implementation only.
- *
- * @param[in] rngp pointer to the @p RNGDriver object
- *
- * @notapi
- */
-#define _rng_isr_code(rngp, rng) { \
- if ((rngp)->config->end_cb) { \
- (rngp)->state = RNG_COMPLETE; \
- (rngp)->config->end_cb(rngp, rng); \
- if ((rngp)->state == RNG_COMPLETE) \
- (rngp)->state = RNG_READY; \
- } \
- else \
- (rngp)->state = RNG_READY; \
- _rng_wakeup_isr(rngp); \
-}
-
-/*===========================================================================*/
-/* External declarations. */
-/*===========================================================================*/
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void rngInit(void);
- void rngObjectInit(RNGDriver *rngp);
- void rngStart(RNGDriver *rngp, const RNGConfig *config);
- void rngStop(RNGDriver *rngp);
- msg_t rngWriteI(RNGDriver *rngp, uint8_t *buf, size_t n, systime_t timeout);
- msg_t rngWrite(RNGDriver *rngp, uint8_t *buf, size_t n, systime_t timeout);
-#if RNG_USE_MUTUAL_EXCLUSION == TRUE
- void rngAcquireUnit(RNGDriver *rngp);
- void rngReleaseUnit(RNGDriver *rngp);
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* HAL_USE_RNG */
-
-#endif /* _RNG_H_ */
-
-/** @} */