Jonathon Fletcher / rtx

in OS_TSK, rename run as tsk_run and new as tsk_new.

rt_Time.c@0:5f46ebd8588e, 2012-09-02 (annotated)

Committer:
jonathonfletcher
Date:
Sun Sep 02 03:24:20 2012 +0000
Revision:
0:5f46ebd8588e
in OS_TSK, rename run as tsk_run and new as tsk_new.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jonathonfletcher 0:5f46ebd8588e 1 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 2 * RL-ARM - RTX
jonathonfletcher 0:5f46ebd8588e 3 *----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 4 * Name: RT_TIME.C
jonathonfletcher 0:5f46ebd8588e 5 * Purpose: Delay and interval wait functions
jonathonfletcher 0:5f46ebd8588e 6 * Rev.: V4.50
jonathonfletcher 0:5f46ebd8588e 7 *----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 8 *
jonathonfletcher 0:5f46ebd8588e 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
jonathonfletcher 0:5f46ebd8588e 10 * All rights reserved.
jonathonfletcher 0:5f46ebd8588e 11 * Redistribution and use in source and binary forms, with or without
jonathonfletcher 0:5f46ebd8588e 12 * modification, are permitted provided that the following conditions are met:
jonathonfletcher 0:5f46ebd8588e 13 * - Redistributions of source code must retain the above copyright
jonathonfletcher 0:5f46ebd8588e 14 * notice, this list of conditions and the following disclaimer.
jonathonfletcher 0:5f46ebd8588e 15 * - Redistributions in binary form must reproduce the above copyright
jonathonfletcher 0:5f46ebd8588e 16 * notice, this list of conditions and the following disclaimer in the
jonathonfletcher 0:5f46ebd8588e 17 * documentation and/or other materials provided with the distribution.
jonathonfletcher 0:5f46ebd8588e 18 * - Neither the name of ARM nor the names of its contributors may be used
jonathonfletcher 0:5f46ebd8588e 19 * to endorse or promote products derived from this software without
jonathonfletcher 0:5f46ebd8588e 20 * specific prior written permission.
jonathonfletcher 0:5f46ebd8588e 21 *
jonathonfletcher 0:5f46ebd8588e 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
jonathonfletcher 0:5f46ebd8588e 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
jonathonfletcher 0:5f46ebd8588e 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
jonathonfletcher 0:5f46ebd8588e 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
jonathonfletcher 0:5f46ebd8588e 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
jonathonfletcher 0:5f46ebd8588e 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
jonathonfletcher 0:5f46ebd8588e 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
jonathonfletcher 0:5f46ebd8588e 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
jonathonfletcher 0:5f46ebd8588e 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
jonathonfletcher 0:5f46ebd8588e 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
jonathonfletcher 0:5f46ebd8588e 32 * POSSIBILITY OF SUCH DAMAGE.
jonathonfletcher 0:5f46ebd8588e 33 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 34
jonathonfletcher 0:5f46ebd8588e 35 #include "rt_TypeDef.h"
jonathonfletcher 0:5f46ebd8588e 36 #include "RTX_Config.h"
jonathonfletcher 0:5f46ebd8588e 37 #include "rt_Task.h"
jonathonfletcher 0:5f46ebd8588e 38 #include "rt_Time.h"
jonathonfletcher 0:5f46ebd8588e 39
jonathonfletcher 0:5f46ebd8588e 40 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 41 * Global Variables
jonathonfletcher 0:5f46ebd8588e 42 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 43
jonathonfletcher 0:5f46ebd8588e 44 /* Free running system tick counter */
jonathonfletcher 0:5f46ebd8588e 45 U32 os_time;
jonathonfletcher 0:5f46ebd8588e 46
jonathonfletcher 0:5f46ebd8588e 47
jonathonfletcher 0:5f46ebd8588e 48 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 49 * Functions
jonathonfletcher 0:5f46ebd8588e 50 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 51
jonathonfletcher 0:5f46ebd8588e 52
jonathonfletcher 0:5f46ebd8588e 53 /*--------------------------- rt_time_get -----------------------------------*/
jonathonfletcher 0:5f46ebd8588e 54
jonathonfletcher 0:5f46ebd8588e 55 U32 rt_time_get (void) {
jonathonfletcher 0:5f46ebd8588e 56 /* Get system time tick */
jonathonfletcher 0:5f46ebd8588e 57 return (os_time);
jonathonfletcher 0:5f46ebd8588e 58 }
jonathonfletcher 0:5f46ebd8588e 59
jonathonfletcher 0:5f46ebd8588e 60
jonathonfletcher 0:5f46ebd8588e 61 /*--------------------------- rt_dly_wait -----------------------------------*/
jonathonfletcher 0:5f46ebd8588e 62
jonathonfletcher 0:5f46ebd8588e 63 void rt_dly_wait (U16 delay_time) {
jonathonfletcher 0:5f46ebd8588e 64 /* Delay task by "delay_time" */
jonathonfletcher 0:5f46ebd8588e 65 rt_block (delay_time, WAIT_DLY);
jonathonfletcher 0:5f46ebd8588e 66 }
jonathonfletcher 0:5f46ebd8588e 67
jonathonfletcher 0:5f46ebd8588e 68
jonathonfletcher 0:5f46ebd8588e 69 /*--------------------------- rt_itv_set ------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 70
jonathonfletcher 0:5f46ebd8588e 71 void rt_itv_set (U16 interval_time) {
jonathonfletcher 0:5f46ebd8588e 72 /* Set interval length and define start of first interval */
jonathonfletcher 0:5f46ebd8588e 73 os_tsk.tsk_run->interval_time = interval_time;
jonathonfletcher 0:5f46ebd8588e 74 os_tsk.tsk_run->delta_time = interval_time + (U16)os_time;
jonathonfletcher 0:5f46ebd8588e 75 }
jonathonfletcher 0:5f46ebd8588e 76
jonathonfletcher 0:5f46ebd8588e 77
jonathonfletcher 0:5f46ebd8588e 78 /*--------------------------- rt_itv_wait -----------------------------------*/
jonathonfletcher 0:5f46ebd8588e 79
jonathonfletcher 0:5f46ebd8588e 80 void rt_itv_wait (void) {
jonathonfletcher 0:5f46ebd8588e 81 /* Wait for interval end and define start of next one */
jonathonfletcher 0:5f46ebd8588e 82 U16 delta;
jonathonfletcher 0:5f46ebd8588e 83
jonathonfletcher 0:5f46ebd8588e 84 delta = os_tsk.tsk_run->delta_time - (U16)os_time;
jonathonfletcher 0:5f46ebd8588e 85 os_tsk.tsk_run->delta_time += os_tsk.tsk_run->interval_time;
jonathonfletcher 0:5f46ebd8588e 86 if ((delta & 0x8000) == 0) {
jonathonfletcher 0:5f46ebd8588e 87 rt_block (delta, WAIT_ITV);
jonathonfletcher 0:5f46ebd8588e 88 }
jonathonfletcher 0:5f46ebd8588e 89 }
jonathonfletcher 0:5f46ebd8588e 90
jonathonfletcher 0:5f46ebd8588e 91 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 92 * end of file
jonathonfletcher 0:5f46ebd8588e 93 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 94