Arrow / Mbed OS DAPLink Reset

Repostiory containing DAPLink source code with Reset Pin workaround for HANI_IOT board.

Upstream: https://github.com/ARMmbed/DAPLink

source/rtos/rt_Event.c@0:01f31e923fe2, 2020-04-07 (annotated)

Committer:
Pawel Zarembski
Date:
Tue Apr 07 12:55:42 2020 +0200
Revision:
0:01f31e923fe2
hani: DAPLink with reset workaround

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pawel Zarembski 0:01f31e923fe2 1 /**
Pawel Zarembski 0:01f31e923fe2 2 * @file rt_Event.c
Pawel Zarembski 0:01f31e923fe2 3 * @brief
Pawel Zarembski 0:01f31e923fe2 4 *
Pawel Zarembski 0:01f31e923fe2 5 * DAPLink Interface Firmware
Pawel Zarembski 0:01f31e923fe2 6 * Copyright (c) 2009-2016, ARM Limited, All Rights Reserved
Pawel Zarembski 0:01f31e923fe2 7 * SPDX-License-Identifier: Apache-2.0
Pawel Zarembski 0:01f31e923fe2 8 *
Pawel Zarembski 0:01f31e923fe2 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
Pawel Zarembski 0:01f31e923fe2 10 * not use this file except in compliance with the License.
Pawel Zarembski 0:01f31e923fe2 11 * You may obtain a copy of the License at
Pawel Zarembski 0:01f31e923fe2 12 *
Pawel Zarembski 0:01f31e923fe2 13 * http://www.apache.org/licenses/LICENSE-2.0
Pawel Zarembski 0:01f31e923fe2 14 *
Pawel Zarembski 0:01f31e923fe2 15 * Unless required by applicable law or agreed to in writing, software
Pawel Zarembski 0:01f31e923fe2 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
Pawel Zarembski 0:01f31e923fe2 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pawel Zarembski 0:01f31e923fe2 18 * See the License for the specific language governing permissions and
Pawel Zarembski 0:01f31e923fe2 19 * limitations under the License.
Pawel Zarembski 0:01f31e923fe2 20 */
Pawel Zarembski 0:01f31e923fe2 21
Pawel Zarembski 0:01f31e923fe2 22 #include "rt_TypeDef.h"
Pawel Zarembski 0:01f31e923fe2 23 #include "RTX_Config.h"
Pawel Zarembski 0:01f31e923fe2 24 #include "rt_System.h"
Pawel Zarembski 0:01f31e923fe2 25 #include "rt_Event.h"
Pawel Zarembski 0:01f31e923fe2 26 #include "rt_List.h"
Pawel Zarembski 0:01f31e923fe2 27 #include "rt_Task.h"
Pawel Zarembski 0:01f31e923fe2 28
Pawel Zarembski 0:01f31e923fe2 29
Pawel Zarembski 0:01f31e923fe2 30 /*----------------------------------------------------------------------------
Pawel Zarembski 0:01f31e923fe2 31 * Functions
Pawel Zarembski 0:01f31e923fe2 32 *---------------------------------------------------------------------------*/
Pawel Zarembski 0:01f31e923fe2 33
Pawel Zarembski 0:01f31e923fe2 34
Pawel Zarembski 0:01f31e923fe2 35 /*--------------------------- rt_evt_wait -----------------------------------*/
Pawel Zarembski 0:01f31e923fe2 36
Pawel Zarembski 0:01f31e923fe2 37 OS_RESULT rt_evt_wait (U16 wait_flags, U16 timeout, BOOL and_wait) {
Pawel Zarembski 0:01f31e923fe2 38 /* Wait for one or more event flags with optional time-out. */
Pawel Zarembski 0:01f31e923fe2 39 /* "wait_flags" identifies the flags to wait for. */
Pawel Zarembski 0:01f31e923fe2 40 /* "timeout" is the time-out limit in system ticks (0xffff if no time-out) */
Pawel Zarembski 0:01f31e923fe2 41 /* "and_wait" specifies the AND-ing of "wait_flags" as condition to be met */
Pawel Zarembski 0:01f31e923fe2 42 /* to complete the wait. (OR-ing if set to 0). */
Pawel Zarembski 0:01f31e923fe2 43 U32 block_state;
Pawel Zarembski 0:01f31e923fe2 44
Pawel Zarembski 0:01f31e923fe2 45 if (and_wait) {
Pawel Zarembski 0:01f31e923fe2 46 /* Check for AND-connected events */
Pawel Zarembski 0:01f31e923fe2 47 if ((os_tsk.run->events & wait_flags) == wait_flags) {
Pawel Zarembski 0:01f31e923fe2 48 os_tsk.run->events &= ~wait_flags;
Pawel Zarembski 0:01f31e923fe2 49 return (OS_R_EVT);
Pawel Zarembski 0:01f31e923fe2 50 }
Pawel Zarembski 0:01f31e923fe2 51 block_state = WAIT_AND;
Pawel Zarembski 0:01f31e923fe2 52 }
Pawel Zarembski 0:01f31e923fe2 53 else {
Pawel Zarembski 0:01f31e923fe2 54 /* Check for OR-connected events */
Pawel Zarembski 0:01f31e923fe2 55 if (os_tsk.run->events & wait_flags) {
Pawel Zarembski 0:01f31e923fe2 56 os_tsk.run->waits = os_tsk.run->events & wait_flags;
Pawel Zarembski 0:01f31e923fe2 57 os_tsk.run->events &= ~wait_flags;
Pawel Zarembski 0:01f31e923fe2 58 return (OS_R_EVT);
Pawel Zarembski 0:01f31e923fe2 59 }
Pawel Zarembski 0:01f31e923fe2 60 block_state = WAIT_OR;
Pawel Zarembski 0:01f31e923fe2 61 }
Pawel Zarembski 0:01f31e923fe2 62 /* Task has to wait */
Pawel Zarembski 0:01f31e923fe2 63 os_tsk.run->waits = wait_flags;
Pawel Zarembski 0:01f31e923fe2 64 rt_block (timeout, (U8)block_state);
Pawel Zarembski 0:01f31e923fe2 65 return (OS_R_TMO);
Pawel Zarembski 0:01f31e923fe2 66 }
Pawel Zarembski 0:01f31e923fe2 67
Pawel Zarembski 0:01f31e923fe2 68
Pawel Zarembski 0:01f31e923fe2 69 /*--------------------------- rt_evt_set ------------------------------------*/
Pawel Zarembski 0:01f31e923fe2 70
Pawel Zarembski 0:01f31e923fe2 71 void rt_evt_set (U16 event_flags, OS_TID task_id) {
Pawel Zarembski 0:01f31e923fe2 72 /* Set one or more event flags of a selectable task. */
Pawel Zarembski 0:01f31e923fe2 73 P_TCB p_tcb;
Pawel Zarembski 0:01f31e923fe2 74
Pawel Zarembski 0:01f31e923fe2 75 p_tcb = os_active_TCB[task_id-1];
Pawel Zarembski 0:01f31e923fe2 76 if (p_tcb == NULL) {
Pawel Zarembski 0:01f31e923fe2 77 return;
Pawel Zarembski 0:01f31e923fe2 78 }
Pawel Zarembski 0:01f31e923fe2 79 p_tcb->events |= event_flags;
Pawel Zarembski 0:01f31e923fe2 80 event_flags = p_tcb->waits;
Pawel Zarembski 0:01f31e923fe2 81 /* If the task is not waiting for an event, it should not be put */
Pawel Zarembski 0:01f31e923fe2 82 /* to ready state. */
Pawel Zarembski 0:01f31e923fe2 83 if (p_tcb->state == WAIT_AND) {
Pawel Zarembski 0:01f31e923fe2 84 /* Check for AND-connected events */
Pawel Zarembski 0:01f31e923fe2 85 if ((p_tcb->events & event_flags) == event_flags) {
Pawel Zarembski 0:01f31e923fe2 86 goto wkup;
Pawel Zarembski 0:01f31e923fe2 87 }
Pawel Zarembski 0:01f31e923fe2 88 }
Pawel Zarembski 0:01f31e923fe2 89 if (p_tcb->state == WAIT_OR) {
Pawel Zarembski 0:01f31e923fe2 90 /* Check for OR-connected events */
Pawel Zarembski 0:01f31e923fe2 91 if (p_tcb->events & event_flags) {
Pawel Zarembski 0:01f31e923fe2 92 p_tcb->waits &= p_tcb->events;
Pawel Zarembski 0:01f31e923fe2 93 wkup: p_tcb->events &= ~event_flags;
Pawel Zarembski 0:01f31e923fe2 94 rt_rmv_dly (p_tcb);
Pawel Zarembski 0:01f31e923fe2 95 p_tcb->events &= ~event_flags;
Pawel Zarembski 0:01f31e923fe2 96 p_tcb->state = READY;
Pawel Zarembski 0:01f31e923fe2 97 p_tcb->ret_val = OS_R_EVT;
Pawel Zarembski 0:01f31e923fe2 98 rt_dispatch (p_tcb);
Pawel Zarembski 0:01f31e923fe2 99 }
Pawel Zarembski 0:01f31e923fe2 100 }
Pawel Zarembski 0:01f31e923fe2 101 }
Pawel Zarembski 0:01f31e923fe2 102
Pawel Zarembski 0:01f31e923fe2 103
Pawel Zarembski 0:01f31e923fe2 104 /*--------------------------- rt_evt_clr ------------------------------------*/
Pawel Zarembski 0:01f31e923fe2 105
Pawel Zarembski 0:01f31e923fe2 106 void rt_evt_clr (U16 clear_flags, OS_TID task_id) {
Pawel Zarembski 0:01f31e923fe2 107 /* Clear one or more event flags (identified by "clear_flags") of a */
Pawel Zarembski 0:01f31e923fe2 108 /* selectable task (identified by "task"). */
Pawel Zarembski 0:01f31e923fe2 109 P_TCB task = os_active_TCB[task_id-1];
Pawel Zarembski 0:01f31e923fe2 110
Pawel Zarembski 0:01f31e923fe2 111 if (task == NULL) {
Pawel Zarembski 0:01f31e923fe2 112 return;
Pawel Zarembski 0:01f31e923fe2 113 }
Pawel Zarembski 0:01f31e923fe2 114 task->events &= ~clear_flags;
Pawel Zarembski 0:01f31e923fe2 115 }
Pawel Zarembski 0:01f31e923fe2 116
Pawel Zarembski 0:01f31e923fe2 117
Pawel Zarembski 0:01f31e923fe2 118 /*--------------------------- isr_evt_set -----------------------------------*/
Pawel Zarembski 0:01f31e923fe2 119
Pawel Zarembski 0:01f31e923fe2 120 void isr_evt_set (U16 event_flags, OS_TID task_id) {
Pawel Zarembski 0:01f31e923fe2 121 /* Same function as "os_evt_set", but to be called by ISRs. */
Pawel Zarembski 0:01f31e923fe2 122 P_TCB p_tcb = os_active_TCB[task_id-1];
Pawel Zarembski 0:01f31e923fe2 123
Pawel Zarembski 0:01f31e923fe2 124 if (p_tcb == NULL) {
Pawel Zarembski 0:01f31e923fe2 125 return;
Pawel Zarembski 0:01f31e923fe2 126 }
Pawel Zarembski 0:01f31e923fe2 127 rt_psq_enq (p_tcb, event_flags);
Pawel Zarembski 0:01f31e923fe2 128 rt_psh_req ();
Pawel Zarembski 0:01f31e923fe2 129 }
Pawel Zarembski 0:01f31e923fe2 130
Pawel Zarembski 0:01f31e923fe2 131
Pawel Zarembski 0:01f31e923fe2 132 /*--------------------------- rt_evt_get ------------------------------------*/
Pawel Zarembski 0:01f31e923fe2 133
Pawel Zarembski 0:01f31e923fe2 134 U16 rt_evt_get (void) {
Pawel Zarembski 0:01f31e923fe2 135 /* Get events of a running task after waiting for OR connected events. */
Pawel Zarembski 0:01f31e923fe2 136 return (os_tsk.run->waits);
Pawel Zarembski 0:01f31e923fe2 137 }
Pawel Zarembski 0:01f31e923fe2 138
Pawel Zarembski 0:01f31e923fe2 139
Pawel Zarembski 0:01f31e923fe2 140 /*--------------------------- rt_evt_psh ------------------------------------*/
Pawel Zarembski 0:01f31e923fe2 141
Pawel Zarembski 0:01f31e923fe2 142 void rt_evt_psh (P_TCB p_CB, U16 set_flags) {
Pawel Zarembski 0:01f31e923fe2 143 /* Check if task has to be waken up */
Pawel Zarembski 0:01f31e923fe2 144 U16 event_flags;
Pawel Zarembski 0:01f31e923fe2 145
Pawel Zarembski 0:01f31e923fe2 146 p_CB->events |= set_flags;
Pawel Zarembski 0:01f31e923fe2 147 event_flags = p_CB->waits;
Pawel Zarembski 0:01f31e923fe2 148 if (p_CB->state == WAIT_AND) {
Pawel Zarembski 0:01f31e923fe2 149 /* Check for AND-connected events */
Pawel Zarembski 0:01f31e923fe2 150 if ((p_CB->events & event_flags) == event_flags) {
Pawel Zarembski 0:01f31e923fe2 151 goto rdy;
Pawel Zarembski 0:01f31e923fe2 152 }
Pawel Zarembski 0:01f31e923fe2 153 }
Pawel Zarembski 0:01f31e923fe2 154 if (p_CB->state == WAIT_OR) {
Pawel Zarembski 0:01f31e923fe2 155 /* Check for OR-connected events */
Pawel Zarembski 0:01f31e923fe2 156 if (p_CB->events & event_flags) {
Pawel Zarembski 0:01f31e923fe2 157 p_CB->waits &= p_CB->events;
Pawel Zarembski 0:01f31e923fe2 158 rdy: p_CB->events &= ~event_flags;
Pawel Zarembski 0:01f31e923fe2 159 rt_rmv_dly (p_CB);
Pawel Zarembski 0:01f31e923fe2 160 p_CB->state = READY;
Pawel Zarembski 0:01f31e923fe2 161 p_CB->ret_val = OS_R_EVT;
Pawel Zarembski 0:01f31e923fe2 162 rt_put_prio (&os_rdy, p_CB);
Pawel Zarembski 0:01f31e923fe2 163 }
Pawel Zarembski 0:01f31e923fe2 164 }
Pawel Zarembski 0:01f31e923fe2 165 }
Pawel Zarembski 0:01f31e923fe2 166
Pawel Zarembski 0:01f31e923fe2 167 /*----------------------------------------------------------------------------
Pawel Zarembski 0:01f31e923fe2 168 * end of file
Pawel Zarembski 0:01f31e923fe2 169 *---------------------------------------------------------------------------*/