void isr_mbx_send (OS_ID mailbox, void *p_msg) {
/* Same function as "os_mbx_send", but to be called by ISRs. */
P_MCB p_MCB = mailbox;
os_psq_enq (p_MCB, (U32)p_msg);
os_psh_req ();
}
void isr_evt_set (U16 event_flags, OS_TID task_id) {
/* Same function as "os_evt_set", but to be called by ISRs. */
P_TCB p_tcb = os_active_TCB[task_id-1];
if (p_tcb == NULL) {
return;
}
os_psq_enq (p_tcb, event_flags);
os_psh_req ();
}
OS_RESULT isr_mbx_receive (OS_ID mailbox, void **message) {
/* Receive a message in the interrupt function. The interrupt function */
/* should not wait for a message since this would block the rtx os. */
P_MCB p_MCB = mailbox;
if (p_MCB->count) {
/* A message is available in the fifo buffer. */
*message = p_MCB->msg[p_MCB->last];
if (p_MCB->isr_st == 1) {
/* A task is locked waiting to send message */
p_MCB->isr_st = 2;
os_psq_enq (p_MCB, 0);
os_psh_req ();
}
p_MCB->count--;
if (++p_MCB->last == p_MCB->size) {
p_MCB->last = 0;
}
return (OS_R_MBX);
}
return (OS_R_OK);
}
