erkin yucel / mbed-os

mbed os with nrf51 internal bandgap enabled to read battery level

Dependents:   BLE_file_test BLE_Blink ExternalEncoder

rtos/rtx/TARGET_ARM7/rt_Robin.c@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 2 * RL-ARM - RTX
elessair 0:f269e3021894 3 *----------------------------------------------------------------------------
elessair 0:f269e3021894 4 * Name: RT_ROBIN.C
elessair 0:f269e3021894 5 * Purpose: Round Robin Task switching
elessair 0:f269e3021894 6 * Rev.: V4.60
elessair 0:f269e3021894 7 *----------------------------------------------------------------------------
elessair 0:f269e3021894 8 *
elessair 0:f269e3021894 9 * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
elessair 0:f269e3021894 10 * All rights reserved.
elessair 0:f269e3021894 11 * Redistribution and use in source and binary forms, with or without
elessair 0:f269e3021894 12 * modification, are permitted provided that the following conditions are met:
elessair 0:f269e3021894 13 * - Redistributions of source code must retain the above copyright
elessair 0:f269e3021894 14 * notice, this list of conditions and the following disclaimer.
elessair 0:f269e3021894 15 * - Redistributions in binary form must reproduce the above copyright
elessair 0:f269e3021894 16 * notice, this list of conditions and the following disclaimer in the
elessair 0:f269e3021894 17 * documentation and/or other materials provided with the distribution.
elessair 0:f269e3021894 18 * - Neither the name of ARM nor the names of its contributors may be used
elessair 0:f269e3021894 19 * to endorse or promote products derived from this software without
elessair 0:f269e3021894 20 * specific prior written permission.
elessair 0:f269e3021894 21 *
elessair 0:f269e3021894 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
elessair 0:f269e3021894 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
elessair 0:f269e3021894 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
elessair 0:f269e3021894 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
elessair 0:f269e3021894 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
elessair 0:f269e3021894 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
elessair 0:f269e3021894 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
elessair 0:f269e3021894 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
elessair 0:f269e3021894 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
elessair 0:f269e3021894 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
elessair 0:f269e3021894 32 * POSSIBILITY OF SUCH DAMAGE.
elessair 0:f269e3021894 33 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 34
elessair 0:f269e3021894 35 #include "rt_TypeDef.h"
elessair 0:f269e3021894 36 #include "RTX_Conf.h"
elessair 0:f269e3021894 37 #include "rt_List.h"
elessair 0:f269e3021894 38 #include "rt_Task.h"
elessair 0:f269e3021894 39 #include "rt_Time.h"
elessair 0:f269e3021894 40 #include "rt_Robin.h"
elessair 0:f269e3021894 41 #include "rt_HAL_CM.h"
elessair 0:f269e3021894 42
elessair 0:f269e3021894 43 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 44 * Global Variables
elessair 0:f269e3021894 45 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47 struct OS_ROBIN os_robin;
elessair 0:f269e3021894 48
elessair 0:f269e3021894 49
elessair 0:f269e3021894 50 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 51 * Global Functions
elessair 0:f269e3021894 52 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 53
elessair 0:f269e3021894 54 /*--------------------------- rt_init_robin ---------------------------------*/
elessair 0:f269e3021894 55
elessair 0:f269e3021894 56 __weak void rt_init_robin (void) {
elessair 0:f269e3021894 57 /* Initialize Round Robin variables. */
elessair 0:f269e3021894 58 os_robin.task = NULL;
elessair 0:f269e3021894 59 os_robin.tout = (U16)os_rrobin;
elessair 0:f269e3021894 60 }
elessair 0:f269e3021894 61
elessair 0:f269e3021894 62 /*--------------------------- rt_chk_robin ----------------------------------*/
elessair 0:f269e3021894 63
elessair 0:f269e3021894 64 __weak void rt_chk_robin (void) {
elessair 0:f269e3021894 65 /* Check if Round Robin timeout expired and switch to the next ready task.*/
elessair 0:f269e3021894 66 P_TCB p_new;
elessair 0:f269e3021894 67
elessair 0:f269e3021894 68 if (os_robin.task != os_rdy.p_lnk) {
elessair 0:f269e3021894 69 /* New task was suspended, reset Round Robin timeout. */
elessair 0:f269e3021894 70 os_robin.task = os_rdy.p_lnk;
elessair 0:f269e3021894 71 os_robin.time = (U16)os_time + os_robin.tout - 1;
elessair 0:f269e3021894 72 }
elessair 0:f269e3021894 73 if (os_robin.time == (U16)os_time) {
elessair 0:f269e3021894 74 /* Round Robin timeout has expired, swap Robin tasks. */
elessair 0:f269e3021894 75 os_robin.task = NULL;
elessair 0:f269e3021894 76 p_new = rt_get_first (&os_rdy);
elessair 0:f269e3021894 77 rt_put_prio ((P_XCB)&os_rdy, p_new);
elessair 0:f269e3021894 78 }
elessair 0:f269e3021894 79 }
elessair 0:f269e3021894 80
elessair 0:f269e3021894 81 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 82 * end of file
elessair 0:f269e3021894 83 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 84