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-rw-r--r--os/hal/hal.mk1
-rw-r--r--os/hal/include/hal_community.h1
-rw-r--r--os/hal/include/rng.h136
-rw-r--r--os/hal/ports/NRF51/NRF51822/platform.mk8
-rw-r--r--os/hal/ports/NRF51/NRF51822/rng_lld.c152
-rw-r--r--os/hal/ports/NRF51/NRF51822/rng_lld.h163
-rw-r--r--os/hal/src/hal_community.c4
-rw-r--r--os/hal/src/rng.c182
8 files changed, 645 insertions, 2 deletions
diff --git a/os/hal/hal.mk b/os/hal/hal.mk
index 808813e..8dc09f7 100644
--- a/os/hal/hal.mk
+++ b/os/hal/hal.mk
@@ -5,6 +5,7 @@ HALSRC += ${CHIBIOS_CONTRIB}/os/hal/src/hal_community.c \
${CHIBIOS_CONTRIB}/os/hal/src/onewire.c \
${CHIBIOS_CONTRIB}/os/hal/src/eicu.c \
${CHIBIOS_CONTRIB}/os/hal/src/crc.c \
+ ${CHIBIOS_CONTRIB}/os/hal/src/rng.c \
${CHIBIOS_CONTRIB}/os/hal/src/usbh.c \
${CHIBIOS_CONTRIB}/os/hal/src/usbh/usbh_debug.c \
${CHIBIOS_CONTRIB}/os/hal/src/usbh/usbh_desciter.c \
diff --git a/os/hal/include/hal_community.h b/os/hal/include/hal_community.h
index 7c83078..144e495 100644
--- a/os/hal/include/hal_community.h
+++ b/os/hal/include/hal_community.h
@@ -32,6 +32,7 @@
/* Normal drivers.*/
#include "nand.h"
#include "eicu.h"
+#include "rng.h"
#include "usbh.h"
#include "timcap.h"
diff --git a/os/hal/include/rng.h b/os/hal/include/rng.h
new file mode 100644
index 0000000..4730f7b
--- /dev/null
+++ b/os/hal/include/rng.h
@@ -0,0 +1,136 @@
+/*
+ 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 "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_ */
+
+/** @} */
diff --git a/os/hal/ports/NRF51/NRF51822/platform.mk b/os/hal/ports/NRF51/NRF51822/platform.mk
index 1a4d876..11259e5 100644
--- a/os/hal/ports/NRF51/NRF51822/platform.mk
+++ b/os/hal/ports/NRF51/NRF51822/platform.mk
@@ -1,5 +1,5 @@
ifeq ($(USE_SMART_BUILD),yes)
-HALCONF := $(strip $(shell cat halconf.h | egrep -e "define"))
+HALCONF := $(strip $(shell cat halconf.h halconf_community.h | egrep -e "define"))
# List of all the NRF51x platform files.
PLATFORMSRC = ${CHIBIOS}/os/hal/ports/common/ARMCMx/nvic.c \
@@ -31,6 +31,9 @@ endif
ifneq ($(findstring HAL_USE_WDG TRUE,$(HALCONF)),)
PLATFORMSRC += ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/wdg_lld.c
endif
+ifneq ($(findstring HAL_USE_RNG TRUE,$(HALCONF)),)
+PLATFORMSRC += ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/rng_lld.c
+endif
else
PLATFORMSRC = ${CHIBIOS}/os/hal/ports/common/ARMCMx/nvic.c \
${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/hal_lld.c \
@@ -43,7 +46,8 @@ PLATFORMSRC = ${CHIBIOS}/os/hal/ports/common/ARMCMx/nvic.c \
${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/i2c_lld.c \
${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/adc_lld.c \
${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/gpt_lld.c \
- ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/wdg_lld.c
+ ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/wdg_lld.c \
+ ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/rng_lld.c
endif
# Required include directories
diff --git a/os/hal/ports/NRF51/NRF51822/rng_lld.c b/os/hal/ports/NRF51/NRF51822/rng_lld.c
new file mode 100644
index 0000000..74bba64
--- /dev/null
+++ b/os/hal/ports/NRF51/NRF51822/rng_lld.c
@@ -0,0 +1,152 @@
+/*
+ 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.
+*/
+
+/**
+ * @file NRF51/RNGv1/rng_lld.c
+ * @brief NRF51 RNG subsystem low level driver source.
+ *
+ * @addtogroup RNG
+ * @{
+ */
+
+#include "hal.h"
+
+#if (HAL_USE_RNG == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/**
+ * @brief RNG default configuration.
+ */
+static const RNGConfig default_config = {
+ .digital_error_correction = 1,
+};
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/** @brief RNG1 driver identifier.*/
+#if NRF51_RNG_USE_RNG1 || defined(__DOXYGEN__)
+RNGDriver RNGD1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level RNG driver initialization.
+ *
+ * @notapi
+ */
+void rng_lld_init(void) {
+ rngObjectInit(&RNGD1);
+ RNGD1.rng = NRF_RNG;
+}
+
+/**
+ * @brief Configures and activates the RNG peripheral.
+ *
+ * @param[in] rngp pointer to the @p RNGDriver object
+ *
+ * @notapi
+ */
+void rng_lld_start(RNGDriver *rngp) {
+ if (rngp->config == NULL)
+ rngp->config = &default_config;
+
+ rngp->rng->POWER = 1;
+
+ if (rngp->config->digital_error_correction)
+ rngp->rng->CONFIG |= RNG_CONFIG_DERCEN_Msk;
+ else
+ rngp->rng->CONFIG &= ~RNG_CONFIG_DERCEN_Msk;
+
+ rngp->rng->EVENTS_VALRDY = 0;
+ rngp->rng->INTENSET = RNG_INTENSET_VALRDY_Msk;
+ rngp->rng->TASKS_START = 1;
+}
+
+
+/**
+ * @brief Deactivates the RNG peripheral.
+ *
+ * @param[in] rngp pointer to the @p RNGDriver object
+ *
+ * @notapi
+ */
+void rng_lld_stop(RNGDriver *rngp) {
+ rngp->rng->TASKS_STOP = 1;
+ rngp->rng->POWER = 0;
+}
+
+
+/**
+ * @brief Write random bytes;
+ *
+ * @param[in] rngp pointer to the @p RNGDriver object
+ * @param[in] n size of buf in bytes
+ * @param[in] buf @p buffer location
+ *
+ * @notapi
+ */
+msg_t rng_lld_write(RNGDriver *rngp, uint8_t *buf, size_t n,
+ systime_t timeout) {
+ size_t i;
+
+ for (i = 0 ; i < n ; i++) {
+ /* Wait for byte ready
+ * It take about 677µs to generate a new byte, not sure if
+ * forcing a context switch will be a benefit
+ */
+ while (NRF_RNG->EVENTS_VALRDY == 0) {
+ /* Sleep and wakeup on ARM event (interrupt) */
+ SCB->SCR |= SCB_SCR_SEVONPEND_Msk;
+ __SEV();
+ __WFE();
+ __WFE();
+ }
+
+ /* Read byte */
+ buf[i] = (char)NRF_RNG->VALUE;
+
+ /* Mark as read */
+ NRF_RNG->EVENTS_VALRDY = 0;
+
+ /* Clear interrupt so we can wake up again */
+ nvicClearPending(RNG_IRQn);
+ }
+ return MSG_OK;
+}
+
+#endif /* HAL_USE_RNG */
+
+/** @} */
diff --git a/os/hal/ports/NRF51/NRF51822/rng_lld.h b/os/hal/ports/NRF51/NRF51822/rng_lld.h
new file mode 100644
index 0000000..8d4db02
--- /dev/null
+++ b/os/hal/ports/NRF51/NRF51822/rng_lld.h
@@ -0,0 +1,163 @@
+/*
+ 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.
+*/
+
+/**
+ * @file NRF51/NRF51822/rng_lld.h
+ * @brief NRF51 RNG subsystem low level driver header.
+ *
+ * @addtogroup RNG
+ * @{
+ */
+
+#ifndef _RNG_LLD_H_
+#define _RNG_LLD_H_
+
+#if (HAL_USE_RNG == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/**
+ * @brief RNG1 driver enable switch.
+ * @details If set to @p TRUE the support for RNG1 is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(NRF51_RNG_USE_RNG1) || defined(__DOXYGEN__)
+#define NRF51_RNG_USE_RNG1 FALSE
+#endif
+
+/**
+ * @brief RNG1 driver enable switch.
+ * @details If set to @p TRUE the support for RNG1 is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(NRF51_RNG_USE_RNG1) || defined(__DOXYGEN__)
+#define NRF51_RNG_USE_POWER_ON_WRITE FALSE
+#endif
+
+/**
+ * @brief RNG1 interrupt priority level setting.
+ */
+#if !defined(NRF51_RNG_RNG1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define NRF51_RNG_RNG1_IRQ_PRIORITY 10
+#endif
+
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of a structure representing an RNG driver.
+ */
+typedef struct RNGDriver RNGDriver;
+
+/**
+ * @brief Driver configuration structure.
+ */
+typedef struct {
+ /* End of the mandatory fields.*/
+ /**
+ * @brief Activate the digital error correction
+ *
+ * @details A digital corrector algorithm is employed to remove any
+ * bias toward '1' or '0'. Disabling it offers a substantial
+ * speed advantage, but may result in a statistical distribution
+ * that is not perfectly uniform.
+ *
+ * @note On average, it take 167µs to get a byte without digitial
+ * error correction and 677µs with, but no garantee is made
+ * on the necessary time to generate one byte.
+ */
+ uint8_t digital_error_correction:1;
+ /**
+ * @brief Only power the RNG device when requeting random bytes
+ *
+ * @details Device will not be powered when started/stopped
+ * but only when writint bytes.
+ */
+ uint8_t power_on_write:1;
+} RNGConfig;
+
+
+/**
+ * @brief Structure representing an RNG driver.
+ */
+struct RNGDriver {
+ /**
+ * @brief Driver state.
+ */
+ rngstate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const RNGConfig *config;
+#if RNG_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
+ /**
+ * @brief Mutex protecting the peripheral.
+ */
+ mutex_t mutex;
+#endif /* RNG_USE_MUTUAL_EXCLUSION */
+ /* End of the mandatory fields.*/
+ /**
+ * @brief Pointer to the RNGx registers block.
+ */
+ NRF_RNG_Type *rng;
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if NRF51_RNG_USE_RNG1 && !defined(__DOXYGEN__)
+extern RNGDriver RNGD1;
+#endif /* NRF51_RNG_USE_RNG1 */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void rng_lld_init(void);
+ void rng_lld_start(RNGDriver *rngp);
+ void rng_lld_stop(RNGDriver *rngp);
+ msg_t rng_lld_write(RNGDriver *rngp, uint8_t *buf, size_t n,
+ systime_t timeout);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_RNG */
+
+#endif /* _RNG_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/src/hal_community.c b/os/hal/src/hal_community.c
index 237386b..4c48113 100644
--- a/os/hal/src/hal_community.c
+++ b/os/hal/src/hal_community.c
@@ -65,6 +65,10 @@ void halCommunityInit(void) {
crcInit();
#endif
+#if HAL_USE_RNG || defined(__DOXYGEN__)
+ rngInit();
+#endif
+
#if HAL_USE_USBH || defined(__DOXYGEN__)
usbhInit();
#endif
diff --git a/os/hal/src/rng.c b/os/hal/src/rng.c
new file mode 100644
index 0000000..5ff6d2d
--- /dev/null
+++ b/os/hal/src/rng.c
@@ -0,0 +1,182 @@
+/*
+ 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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 05:09:37 +0000