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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/src/hal_rng.c
parent7772ea4579a45bcf63ebd5e68be66ba1a9c72dfa (diff)
tar'd chibi
Diffstat (limited to 'ChibiOS_16.1.5/community/os/hal/src/hal_rng.c')
-rw-r--r--ChibiOS_16.1.5/community/os/hal/src/hal_rng.c182
1 files changed, 0 insertions, 182 deletions
diff --git a/ChibiOS_16.1.5/community/os/hal/src/hal_rng.c b/ChibiOS_16.1.5/community/os/hal/src/hal_rng.c
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--- a/ChibiOS_16.1.5/community/os/hal/src/hal_rng.c
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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.
-*/
-
-/*
- * Hardware Abstraction Layer for RNG Unit
- */
-#include "hal.h"
-
-#if (HAL_USE_RNG == TRUE) || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver local definitions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables and types. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief RNG Driver initialization.
- *
- * @init
- */
-void rngInit(void) {
- rng_lld_init();
-}
-
-/**
- * @brief Initializes the standard part of a @p RNGDriver structure.
- *
- * @param[out] rngp Pointer to the @p RNGDriver object
- *
- * @init
- */
-void rngObjectInit(RNGDriver *rngp) {
- rngp->state = RNG_STOP;
- rngp->config = NULL;
-#if RNG_USE_MUTUAL_EXCLUSION == TRUE
- osalMutexObjectInit(&rngp->mutex);
-#endif
-#if defined(RNG_DRIVER_EXT_INIT_HOOK)
- RNG_DRIVER_EXT_INIT_HOOK(rngp);
-#endif
-}
-
-/**
- * @brief Configures and activates the RNG peripheral.
- *
- * @param[in] rngp Pointer to the @p RNGDriver object
- * @param[in] config Pointer to the @p RNGConfig object
- * @p NULL if the low level driver implementation
- * supports a default configuration
- *
- * @api
- */
-void rngStart(RNGDriver *rngp, const RNGConfig *config) {
- osalDbgCheck(rngp != NULL);
-
- osalSysLock();
- osalDbgAssert((rngp->state == RNG_STOP) || (rngp->state == RNG_READY),
- "invalid state");
- rngp->config = config;
- rng_lld_start(rngp);
- rngp->state = RNG_READY;
- osalSysUnlock();
-}
-
-/**
- * @brief Deactivates the RNG peripheral.
- *
- * @param[in] rngp Pointer to the @p RNGDriver object
- *
- * @api
- */
-void rngStop(RNGDriver *rngp) {
- osalDbgCheck(rngp != NULL);
-
- osalSysLock();
- osalDbgAssert((rngp->state == RNG_STOP) || (rngp->state == RNG_READY),
- "invalid state");
- rng_lld_stop(rngp);
- rngp->state = RNG_STOP;
- osalSysUnlock();
-}
-
-/**
- * @brief Write random bytes
- * @details Write the request number of bytes..
- *
- * @param[in] rngp pointer to the @p RNGDriver object
- * @param[in] buf the pointer to the buffer
- * @param[in] n number of bytes to send
- * @param[in] timeout timeout value
- *
- * @api
- */
-msg_t rngWrite(RNGDriver *rngp, uint8_t *buf, size_t n, systime_t timeout) {
- msg_t msg;
- osalSysLock();
- msg = rngWriteI(rngp, buf, n, timeout);
- osalSysUnlock();
- return msg;
-}
-
-/**
- * @brief Write random bytes
- * @details Write the request number of bytes..
- *
- * @param[in] rngp pointer to the @p RNGDriver object
- * @param[in] buf the pointer to the buffer
- * @param[in] n number of bytes to send
- * @param[in] timeout timeout value
- *
- * @iclass
- */
-msg_t rngWriteI(RNGDriver *rngp, uint8_t *buf, size_t n, systime_t timeout) {
- osalDbgCheck((rngp != NULL) && (n > 0U) && (buf != NULL));
- osalDbgAssert(rngp->state == RNG_READY, "not ready");
- return rng_lld_write(rngp, buf, n, timeout);
-}
-
-
-#if (RNG_USE_MUTUAL_EXCLUSION == TRUE) || defined(__DOXYGEN__)
-/**
- * @brief Gains exclusive access to the RNG unit.
- * @details This function tries to gain ownership to the RNG, if the RNG is
- * already being used then the invoking thread is queued.
- * @pre In order to use this function the option @p RNG_USE_MUTUAL_EXCLUSION
- * must be enabled.
- *
- * @param[in] rngp pointer to the @p RNGDriver object
- *
- * @api
- */
-void rngAcquireUnit(RNGDriver *rngp) {
- osalDbgCheck(rngp != NULL);
-
- osalMutexLock(&rngp->mutex);
-}
-
-/**
- * @brief Releases exclusive access to the RNG unit.
- * @pre In order to use this function the option @p RNG_USE_MUTUAL_EXCLUSION
- * must be enabled.
- *
- * @param[in] rngp pointer to the @p RNGDriver object
- *
- * @api
- */
-void rngReleaseUnit(RNGDriver *rngp) {
- osalDbgCheck(rngp != NULL);
-
- osalMutexUnlock(&rngp->mutex);
-}
-#endif /* RNG_USE_MUTUAL_EXCLUSION == TRUE */
-
-#endif /* HAL_USE_RNG */