94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel_structs.h>
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#include <cmsis_os.h>
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/**
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* @brief Create and Initialize Message queue.
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*/
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osMessageQId osMessageCreate(const osMessageQDef_t *queue_def,
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osThreadId thread_id)
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{
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if (queue_def == NULL) {
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return NULL;
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}
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if (k_is_in_isr()) {
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return NULL;
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}
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k_msgq_init(queue_def->msgq, queue_def->pool,
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queue_def->item_sz, queue_def->queue_sz);
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return (osMessageQId)(queue_def);
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}
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/**
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* @brief Put a message to a Queue.
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*/
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osStatus osMessagePut(osMessageQId queue_id, uint32_t info, uint32_t millisec)
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{
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osMessageQDef_t *queue_def = (osMessageQDef_t *)queue_id;
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int retval;
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if (queue_def == NULL) {
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return osErrorParameter;
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}
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if (millisec == 0) {
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retval = k_msgq_put(queue_def->msgq, (void *)&info, K_NO_WAIT);
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} else if (millisec == osWaitForever) {
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retval = k_msgq_put(queue_def->msgq, (void *)&info, K_FOREVER);
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} else {
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retval = k_msgq_put(queue_def->msgq, (void *)&info, millisec);
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}
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if (retval == 0) {
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return osOK;
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} else if (retval == -EAGAIN) {
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return osErrorTimeoutResource;
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} else {
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return osErrorResource;
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}
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}
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/**
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* @brief Get a message or Wait for a Message from a Queue.
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*/
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osEvent osMessageGet(osMessageQId queue_id, uint32_t millisec)
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{
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osMessageQDef_t *queue_def = (osMessageQDef_t *)queue_id;
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u32_t info;
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osEvent evt = {0};
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int retval;
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if (queue_def == NULL) {
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evt.status = osErrorParameter;
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return evt;
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}
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if (millisec == 0) {
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retval = k_msgq_get(queue_def->msgq, &info, K_NO_WAIT);
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} else if (millisec == osWaitForever) {
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retval = k_msgq_get(queue_def->msgq, &info, K_FOREVER);
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} else {
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retval = k_msgq_get(queue_def->msgq, &info, millisec);
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}
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if (retval == 0) {
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evt.status = osEventMessage;
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evt.value.v = info;
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} else if (retval == -EAGAIN) {
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evt.status = osEventTimeout;
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} else if (retval == -ENOMSG) {
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evt.status = osOK;
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}
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evt.def.message_id = queue_id;
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return evt;
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}
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