Diff: rtx_ca/rt_Event.c

Revision:

49:77c8e4604045

Parent:

48:e9a2c7cb57a4

Child:

50:64a5202c3676

--- a/rtx_ca/rt_Event.c	Thu Nov 06 11:00:33 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,194 +0,0 @@
-/*----------------------------------------------------------------------------
- *      RL-ARM - RTX
- *----------------------------------------------------------------------------
- *      Name:    RT_EVENT.C
- *      Purpose: Implements waits and wake-ups for event flags
- *      Rev.:    V4.60
- *----------------------------------------------------------------------------
- *
- * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
- * All rights reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *  - Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  - Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *  - Neither the name of ARM  nor the names of its contributors may be used 
- *    to endorse or promote products derived from this software without 
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *---------------------------------------------------------------------------*/
-
-#include "rt_TypeDef.h"
-#include "RTX_Config.h"
-#include "rt_System.h"
-#include "rt_Event.h"
-#include "rt_List.h"
-#include "rt_Task.h"
-#ifdef __CORTEX_A9
-#include "rt_HAL_CA.h"
-#else
-#include "rt_HAL_CM.h"
-#endif
-
-
-/*----------------------------------------------------------------------------
- *      Functions
- *---------------------------------------------------------------------------*/
-
-
-/*--------------------------- rt_evt_wait -----------------------------------*/
-
-OS_RESULT rt_evt_wait (U16 wait_flags, U16 timeout, BOOL and_wait) {
-  /* Wait for one or more event flags with optional time-out.                */
-  /* "wait_flags" identifies the flags to wait for.                          */
-  /* "timeout" is the time-out limit in system ticks (0xffff if no time-out) */
-  /* "and_wait" specifies the AND-ing of "wait_flags" as condition to be met */
-  /* to complete the wait. (OR-ing if set to 0).                             */
-  U32 block_state;
-
-  if (and_wait) {
-    /* Check for AND-connected events */
-    if ((os_tsk.run->events & wait_flags) == wait_flags) {
-      os_tsk.run->events &= ~wait_flags;
-      return (OS_R_EVT);
-    }
-    block_state = WAIT_AND;
-  }
-  else {
-    /* Check for OR-connected events */
-    if (os_tsk.run->events & wait_flags) {
-      os_tsk.run->waits = os_tsk.run->events & wait_flags;
-      os_tsk.run->events &= ~wait_flags;
-      return (OS_R_EVT);
-    }
-    block_state = WAIT_OR;
-  }
-  /* Task has to wait */
-  os_tsk.run->waits = wait_flags;
-  rt_block (timeout, (U8)block_state);
-  return (OS_R_TMO);
-}
-
-
-/*--------------------------- rt_evt_set ------------------------------------*/
-
-void rt_evt_set (U16 event_flags, OS_TID task_id) {
-  /* Set one or more event flags of a selectable task. */
-  P_TCB p_tcb;
-
-  p_tcb = os_active_TCB[task_id-1];
-  if (p_tcb == NULL) {
-    return;
-  }
-  p_tcb->events |= event_flags;
-  event_flags    = p_tcb->waits;
-  /* If the task is not waiting for an event, it should not be put */
-  /* to ready state. */
-  if (p_tcb->state == WAIT_AND) {
-    /* Check for AND-connected events */
-    if ((p_tcb->events & event_flags) == event_flags) {
-      goto wkup;
-    }
-  }
-  if (p_tcb->state == WAIT_OR) {
-    /* Check for OR-connected events */
-    if (p_tcb->events & event_flags) {
-      p_tcb->waits  &= p_tcb->events;
-wkup: p_tcb->events &= ~event_flags;
-      rt_rmv_dly (p_tcb);
-      p_tcb->state   = READY;
-#ifdef __CMSIS_RTOS
-      rt_ret_val2(p_tcb, 0x08/*osEventSignal*/, p_tcb->waits); 
-#else
-      rt_ret_val (p_tcb, OS_R_EVT);
-#endif
-      rt_dispatch (p_tcb);
-    }
-  }
-}
-
-
-/*--------------------------- rt_evt_clr ------------------------------------*/
-
-void rt_evt_clr (U16 clear_flags, OS_TID task_id) {
-  /* Clear one or more event flags (identified by "clear_flags") of a */
-  /* selectable task (identified by "task"). */
-  P_TCB task = os_active_TCB[task_id-1];
-
-  if (task == NULL) {
-    return;
-  }
-  task->events &= ~clear_flags;
-}
-
-
-/*--------------------------- isr_evt_set -----------------------------------*/
-
-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;
-  }
-  rt_psq_enq (p_tcb, event_flags);
-  rt_psh_req ();
-}
-
-
-/*--------------------------- rt_evt_get ------------------------------------*/
-
-U16 rt_evt_get (void) {
-  /* Get events of a running task after waiting for OR connected events. */
-  return (os_tsk.run->waits);
-}
-
-
-/*--------------------------- rt_evt_psh ------------------------------------*/
-
-void rt_evt_psh (P_TCB p_CB, U16 set_flags) {
-  /* Check if task has to be waken up */
-  U16 event_flags;
-
-  p_CB->events |= set_flags;
-  event_flags = p_CB->waits;
-  if (p_CB->state == WAIT_AND) {
-    /* Check for AND-connected events */
-    if ((p_CB->events & event_flags) == event_flags) {
-      goto rdy;
-    }
-  }
-  if (p_CB->state == WAIT_OR) {
-    /* Check for OR-connected events */
-    if (p_CB->events & event_flags) {
-      p_CB->waits  &= p_CB->events;
-rdy:  p_CB->events &= ~event_flags;
-      rt_rmv_dly (p_CB);
-      p_CB->state   = READY;
-#ifdef __CMSIS_RTOS
-      rt_ret_val2(p_CB, 0x08/*osEventSignal*/, p_CB->waits); 
-#else
-      rt_ret_val (p_CB, OS_R_EVT);
-#endif
-      rt_put_prio (&os_rdy, p_CB);
-    }
-  }
-}
-
-/*----------------------------------------------------------------------------
- * end of file
- *---------------------------------------------------------------------------*/