/**
* @brief Initializes a @p mailbox_t object.
*
* @param[out] mbp the pointer to the @p mailbox_t structure to be
* initialized
* @param[in] buf pointer to the messages buffer as an array of @p msg_t
* @param[in] n number of elements in the buffer array
*
* @init
*/
void chMBObjectInit(mailbox_t *mbp, msg_t *buf, size_t n) {
chDbgCheck((mbp != NULL) && (buf != NULL) && (n > (size_t)0));
mbp->buffer = buf;
mbp->rdptr = buf;
mbp->wrptr = buf;
mbp->top = &buf[n];
mbp->cnt = (size_t)0;
mbp->reset = false;
chThdQueueObjectInit(&mbp->qw);
chThdQueueObjectInit(&mbp->qr);
}
/**
* @brief Initializes an input queue.
* @details A Semaphore is internally initialized and works as a counter of
* the bytes contained in the queue.
* @note The callback is invoked from within the S-Locked system state,
* see @ref system_states.
*
* @param[out] iqp pointer to an @p input_queue_t structure
* @param[in] bp pointer to a memory area allocated as queue buffer
* @param[in] size size of the queue buffer
* @param[in] infy pointer to a callback function that is invoked when
* data is read from the queue. The value can be @p NULL.
* @param[in] link application defined pointer
*
* @init
*/
void chIQObjectInit(input_queue_t *iqp, uint8_t *bp, size_t size,
qnotify_t infy, void *link) {
chThdQueueObjectInit(&iqp->q_waiting);
iqp->q_counter = 0;
iqp->q_buffer = iqp->q_rdptr = iqp->q_wrptr = bp;
iqp->q_top = bp + size;
iqp->q_notify = infy;
iqp->q_link = link;
}
/**
* @brief Initializes an output queue.
* @details A Semaphore is internally initialized and works as a counter of
* the free bytes in the queue.
* @note The callback is invoked from within the S-Locked system state,
* see @ref system_states.
*
* @param[out] oqp pointer to an @p output_queue_t structure
* @param[in] bp pointer to a memory area allocated as queue buffer
* @param[in] size size of the queue buffer
* @param[in] onfy pointer to a callback function that is invoked when
* data is written to the queue. The value can be @p NULL.
* @param[in] link application defined pointer
*
* @init
*/
void chOQObjectInit(output_queue_t *oqp, uint8_t *bp, size_t size,
qnotify_t onfy, void *link) {
chThdQueueObjectInit(&oqp->q_waiting);
oqp->q_counter = size;
oqp->q_buffer = oqp->q_rdptr = oqp->q_wrptr = bp;
oqp->q_top = bp + size;
oqp->q_notify = onfy;
oqp->q_link = link;
}
