diff options
| author | Giovanni Di Sirio <gdisirio@gmail.com> | 2016-02-22 13:13:23 +0000 |
|---|---|---|
| committer | Giovanni Di Sirio <gdisirio@gmail.com> | 2016-02-22 13:13:23 +0000 |
| commit | d00602234f4d9eecbe3a0d4d49ae7a07902088f7 (patch) | |
| tree | 2982adab3f7afb6acdd5df46060eb47b334220fd /os/common/ext/nasa-osal/src/osapi.c | |
| parent | 03eb35736c5a3ea65f571fc0c4c1811ccbd49780 (diff) | |
| download | ChibiOS-d00602234f4d9eecbe3a0d4d49ae7a07902088f7.tar.gz ChibiOS-d00602234f4d9eecbe3a0d4d49ae7a07902088f7.tar.bz2 ChibiOS-d00602234f4d9eecbe3a0d4d49ae7a07902088f7.zip | |
NASA OSAL prototype.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8922 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/common/ext/nasa-osal/src/osapi.c')
| -rw-r--r-- | os/common/ext/nasa-osal/src/osapi.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/os/common/ext/nasa-osal/src/osapi.c b/os/common/ext/nasa-osal/src/osapi.c new file mode 100644 index 000000000..16735e45f --- /dev/null +++ b/os/common/ext/nasa-osal/src/osapi.c @@ -0,0 +1,320 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+ 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 osapi.c
+ * @brief OS API module code.
+ *
+ * @addtogroup nasa_osapi
+ * @{
+ */
+
+#include <string.h>
+
+#include "ch.h"
+
+#include "common_types.h"
+#include "osapi.h"
+
+/*===========================================================================*/
+/* Module local definitions. */
+/*===========================================================================*/
+
+#define MIN_PRIORITY 1
+#define MAX_PRIORITY 255
+
+/*===========================================================================*/
+/* Module exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of OSAL main structure.
+ */
+typedef struct {
+ bool printf_enabled;
+} osal_t;
+
+/*===========================================================================*/
+/* Module local variables. */
+/*===========================================================================*/
+
+static osal_t osal;
+
+/*===========================================================================*/
+/* Module local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module exported functions. */
+/*===========================================================================*/
+
+/*-- Initialization API -----------------------------------------------------*/
+
+/**
+ * @brief OS initialization.
+ * @details This function returns initializes the internal data structures
+ * of the OS Abstraction Layer. It must be called in the application
+ * startup code before calling any other OS routines.
+ *
+ * @return kAn error code.
+ *
+ * @api
+ */
+int32 OS_API_Init(void) {
+
+ chSysInit();
+
+ osal.printf_enabled = false;
+
+ return OS_SUCCESS;
+}
+
+/*-- Various API -----------------------------------------------------------*/
+
+/**
+ * @brief OS printf-like function.
+ * @note It is initially disabled.
+ * @note It is not currently implemented.
+ *
+ * @param[in] string formatter string
+ *
+ * @api
+ */
+void OS_printf(const char *string, ...) {
+
+ (void)string;
+
+ if (osal.printf_enabled) {
+
+ }
+}
+
+/**
+ * @brief Disables @p OS_printf().
+ *
+ * @api
+ */
+void OS_printf_disable(void) {
+
+ osal.printf_enabled = false;
+}
+
+/**
+ * @brief Enables @p OS_printf().
+ *
+ * @api
+ */
+void OS_printf_enable(void) {
+
+ osal.printf_enabled = true;
+}
+
+/**
+ * @brief System tick period in microseconds.
+ *
+ * @return The system tick period.
+ */
+int32 OS_Tick2Micros(void) {
+
+ return 1000000 / CH_CFG_ST_FREQUENCY;
+}
+
+/**
+ * @brief Returns the local time.
+ * @note It is not currently implemented.
+ *
+ * @param[out] time_struct the system time
+ * @return An error code.
+ *
+ * @api
+ */
+int32 OS_GetLocalTime(OS_time_t *time_struct) {
+
+ if (time_struct == NULL) {
+ return OS_INVALID_POINTER;
+ }
+
+ time_struct->seconds = 0;
+ time_struct->microsecs = 0;
+
+ return OS_ERR_NOT_IMPLEMENTED;
+}
+
+/**
+ * @brief Changes the local time.
+ * @note It is not currently implemented.
+ *
+ * @param[in] time_struct the system time
+ * @return An error code.
+ *
+ * @api
+ */
+int32 OS_SetLocalTime(OS_time_t *time_struct) {
+
+ if (time_struct == NULL) {
+ return OS_INVALID_POINTER;
+ }
+
+ return OS_ERR_NOT_IMPLEMENTED;
+}
+
+/**
+ * @brief Conversion from milliseconds to ticks.
+ *
+ * @param[in] milli_seconds the time in milliseconds
+ * @return The system ticks.
+ *
+ * @api
+ */
+int32 OS_Milli2Ticks(uint32 milli_seconds) {
+
+ return (int32)MS2ST(milli_seconds);
+}
+
+/*-- Queues API -------------------------------------------------------------*/
+
+/*-- Semaphore and Mutex API ------------------------------------------------*/
+
+/*-- Task Control API -------------------------------------------------------*/
+
+/**
+ * @brief Task creation.
+ *
+ * @param[out] task_id pointer to a task id variable
+ * @param[in] task_name the task name
+ * @param[in] function_pointer the task function
+ * @param[in] stack_pointer base of stack area
+ * @param[in] stack_size size of stack area
+ * @param[in] priority the task priority
+ * @param[in] flags task attributes
+ * @return An error code.
+ *
+ * @api
+ */
+int32 OS_TaskCreate(uint32 *task_id,
+ const char *task_name,
+ osal_task_entry function_pointer,
+ const uint32 *stack_pointer,
+ uint32 stack_size,
+ uint32 priority,
+ uint32 flags) {
+ tprio_t rt_prio;
+ thread_t *tp;
+
+ (void)flags;
+
+ /* NULL pointer checks.*/
+ if ((task_id == NULL) || (task_name == NULL) ||
+ (function_pointer == NULL) || (stack_pointer == NULL)) {
+ return OS_INVALID_POINTER;
+ }
+
+ /* Checking alignment of stack base and size, it is application
+ responsibility to pass correct values.*/
+ if (!MEM_IS_ALIGNED(stack_pointer, PORT_WORKING_AREA_ALIGN) ||
+ !MEM_IS_ALIGNED(stack_size, sizeof (stkalign_t))) {
+ return OS_ERROR_ADDRESS_MISALIGNED;
+ }
+
+ /* Checking task name length.*/
+ if (strlen(task_name) >= OS_MAX_API_NAME) {
+ return OS_ERR_NAME_TOO_LONG;
+ }
+
+ /* Checking priority range.*/
+ if ((priority < MIN_PRIORITY) || (priority > MAX_PRIORITY)) {
+ return OS_ERR_INVALID_PRIORITY;
+ }
+
+ /* Checking if the specified stack size is below the bare minimum.*/
+ if (stack_size < (uint32)THD_WORKING_AREA_SIZE(0)) {
+ return OS_INVALID_INT_NUM;
+ }
+
+ /* Converting priority to RT type.*/
+ rt_prio = (tprio_t)256 - (tprio_t)priority;
+
+ tp = chThdCreateFromHeap(NULL, (size_t)stack_size, task_name,
+ rt_prio, (tfunc_t)function_pointer, NULL);
+
+ /* Out-of-memory condition.*/
+ if (tp == NULL) {
+ return OS_ERROR;
+ }
+
+ /* Storing the task id.*/
+ *task_id = (uint32)tp;
+
+ return OS_SUCCESS;
+}
+
+/**
+ * @brief Task delete.
+ * @note It is not currently implemented.
+ *
+ * @param[in] task_id the task id
+ * @return An error code.
+ *
+ * @api
+ */
+int32 OS_TaskDelete(uint32 task_id) {
+
+ (void)task_id;
+
+ return OS_ERR_NOT_IMPLEMENTED;
+}
+
+/**
+ * @brief Task exit.
+ *
+ * @api
+ */
+void OS_TaskExit(void) {
+
+ chThdExit(MSG_OK);
+}
+
+/**
+ * @brief Task delay.
+ *
+ * @param[in] milli_second the period in miliseconds
+ * @return An error code.
+ *
+ * @api
+ */
+int32 OS_TaskDelay(uint32 milli_second) {
+
+ chThdSleepMilliseconds(milli_second);
+ return OS_SUCCESS;
+}
+
+/**
+ * @brief Task registration.
+ * @note In ChibiOS/RT it does nothing.
+ *
+ * @return An error code.
+ *
+ * @api
+ */
+int32 OS_TaskRegister(void) {
+
+ return OS_SUCCESS;
+}
+/** @} */
|