175 lines
3.5 KiB
C
175 lines
3.5 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 mail queue.
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*/
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osMailQId osMailCreate(const osMailQDef_t *queue_def, 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_mbox_init(queue_def->mbox);
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return (osMailQId)(queue_def);
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}
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/**
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* @brief Allocate a memory block from a mail.
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*/
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void *osMailAlloc(osMailQId queue_id, uint32_t millisec)
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{
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osMailQDef_t *queue_def = (osMailQDef_t *)queue_id;
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char *ptr;
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int retval;
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if (queue_def == NULL) {
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return NULL;
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}
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if (millisec == 0U) {
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retval = k_mem_slab_alloc(
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(struct k_mem_slab *)(queue_def->pool),
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(void **)&ptr, K_NO_WAIT);
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} else if (millisec == osWaitForever) {
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retval = k_mem_slab_alloc(
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(struct k_mem_slab *)(queue_def->pool),
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(void **)&ptr, K_FOREVER);
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} else {
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retval = k_mem_slab_alloc(
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(struct k_mem_slab *)(queue_def->pool),
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(void **)&ptr, millisec);
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}
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if (retval == 0) {
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return ptr;
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} else {
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return NULL;
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}
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}
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/**
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* @brief Allocate a memory block from a mail and set memory block to zero.
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*/
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void *osMailCAlloc(osMailQId queue_id, uint32_t millisec)
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{
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osMailQDef_t *queue_def = (osMailQDef_t *)queue_id;
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char *ptr;
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int retval;
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if (queue_def == NULL) {
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return NULL;
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}
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if (millisec == 0U) {
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retval = k_mem_slab_alloc(
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(struct k_mem_slab *)(queue_def->pool),
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(void **)&ptr, K_NO_WAIT);
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} else if (millisec == osWaitForever) {
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retval = k_mem_slab_alloc(
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(struct k_mem_slab *)(queue_def->pool),
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(void **)&ptr, K_FOREVER);
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} else {
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retval = k_mem_slab_alloc(
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(struct k_mem_slab *)(queue_def->pool),
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(void **)&ptr, millisec);
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}
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if (retval == 0) {
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(void)memset(ptr, 0, queue_def->item_sz);
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return ptr;
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} else {
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return NULL;
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}
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}
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/**
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* @brief Put a mail to a queue.
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*/
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osStatus osMailPut(osMailQId queue_id, void *mail)
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{
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osMailQDef_t *queue_def = (osMailQDef_t *)queue_id;
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struct k_mbox_msg mmsg;
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if (queue_def == NULL) {
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return osErrorParameter;
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}
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if (mail == NULL) {
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return osErrorValue;
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}
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(void)memset(&mmsg, 0, sizeof(mmsg));
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mmsg.tx_data = mail;
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mmsg.rx_source_thread = K_ANY;
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mmsg.tx_target_thread = K_ANY;
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k_mbox_async_put(queue_def->mbox, &mmsg, NULL);
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return osOK;
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}
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/**
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* @brief Get a mail from a queue.
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*/
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osEvent osMailGet(osMailQId queue_id, uint32_t millisec)
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{
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osMailQDef_t *queue_def = (osMailQDef_t *)queue_id;
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struct k_mbox_msg mmsg;
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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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(void)memset(&mmsg, 0, sizeof(mmsg));
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mmsg.rx_source_thread = K_ANY;
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mmsg.tx_target_thread = K_ANY;
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if (millisec == 0U) {
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retval = k_mbox_get(queue_def->mbox, &mmsg, NULL, K_NO_WAIT);
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} else if (millisec == osWaitForever) {
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retval = k_mbox_get(queue_def->mbox, &mmsg, NULL, K_FOREVER);
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} else {
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retval = k_mbox_get(queue_def->mbox, &mmsg, NULL, millisec);
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}
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if (retval == 0) {
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evt.status = osEventMail;
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evt.value.p = mmsg.tx_data;
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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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} else {
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evt.status = osErrorValue;
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}
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evt.def.mail_id = queue_id;
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return evt;
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}
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/**
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* @brief Free a memory block from a mail.
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*/
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osStatus osMailFree(osMailQId queue_id, void *mail)
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{
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osMailQDef_t *queue_def = (osMailQDef_t *)queue_id;
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k_mem_slab_free((struct k_mem_slab *)(queue_def->pool), (void *) &mail);
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return osOK;
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}
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