Michael Kersh / Mbed 2 deprecated ECE4180EthernetTest

Ethernet test for ECE 4180 and others to find your IP address and do a simple HTTP GET request over port 80.

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

mbed-rtos/rtx/rt_Event.c@0:e7ca326e76ee, 2013-04-04 (annotated)

Committer:
mkersh3
Date:
Thu Apr 04 05:26:09 2013 +0000
Revision:
0:e7ca326e76ee
Ethernet Test for ECE4180 and others to find their IP Address and do a simple HTTP GET request over port 80.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mkersh3 0:e7ca326e76ee 1 /*----------------------------------------------------------------------------
mkersh3 0:e7ca326e76ee 2 * RL-ARM - RTX
mkersh3 0:e7ca326e76ee 3 *----------------------------------------------------------------------------
mkersh3 0:e7ca326e76ee 4 * Name: RT_EVENT.C
mkersh3 0:e7ca326e76ee 5 * Purpose: Implements waits and wake-ups for event flags
mkersh3 0:e7ca326e76ee 6 * Rev.: V4.50
mkersh3 0:e7ca326e76ee 7 *----------------------------------------------------------------------------
mkersh3 0:e7ca326e76ee 8 *
mkersh3 0:e7ca326e76ee 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
mkersh3 0:e7ca326e76ee 10 * All rights reserved.
mkersh3 0:e7ca326e76ee 11 * Redistribution and use in source and binary forms, with or without
mkersh3 0:e7ca326e76ee 12 * modification, are permitted provided that the following conditions are met:
mkersh3 0:e7ca326e76ee 13 * - Redistributions of source code must retain the above copyright
mkersh3 0:e7ca326e76ee 14 * notice, this list of conditions and the following disclaimer.
mkersh3 0:e7ca326e76ee 15 * - Redistributions in binary form must reproduce the above copyright
mkersh3 0:e7ca326e76ee 16 * notice, this list of conditions and the following disclaimer in the
mkersh3 0:e7ca326e76ee 17 * documentation and/or other materials provided with the distribution.
mkersh3 0:e7ca326e76ee 18 * - Neither the name of ARM nor the names of its contributors may be used
mkersh3 0:e7ca326e76ee 19 * to endorse or promote products derived from this software without
mkersh3 0:e7ca326e76ee 20 * specific prior written permission.
mkersh3 0:e7ca326e76ee 21 *
mkersh3 0:e7ca326e76ee 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mkersh3 0:e7ca326e76ee 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mkersh3 0:e7ca326e76ee 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mkersh3 0:e7ca326e76ee 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mkersh3 0:e7ca326e76ee 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mkersh3 0:e7ca326e76ee 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mkersh3 0:e7ca326e76ee 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mkersh3 0:e7ca326e76ee 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mkersh3 0:e7ca326e76ee 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mkersh3 0:e7ca326e76ee 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mkersh3 0:e7ca326e76ee 32 * POSSIBILITY OF SUCH DAMAGE.
mkersh3 0:e7ca326e76ee 33 *---------------------------------------------------------------------------*/
mkersh3 0:e7ca326e76ee 34
mkersh3 0:e7ca326e76ee 35 #include "rt_TypeDef.h"
mkersh3 0:e7ca326e76ee 36 #include "RTX_Config.h"
mkersh3 0:e7ca326e76ee 37 #include "rt_System.h"
mkersh3 0:e7ca326e76ee 38 #include "rt_Event.h"
mkersh3 0:e7ca326e76ee 39 #include "rt_List.h"
mkersh3 0:e7ca326e76ee 40 #include "rt_Task.h"
mkersh3 0:e7ca326e76ee 41 #include "rt_HAL_CM.h"
mkersh3 0:e7ca326e76ee 42
mkersh3 0:e7ca326e76ee 43
mkersh3 0:e7ca326e76ee 44 /*----------------------------------------------------------------------------
mkersh3 0:e7ca326e76ee 45 * Functions
mkersh3 0:e7ca326e76ee 46 *---------------------------------------------------------------------------*/
mkersh3 0:e7ca326e76ee 47
mkersh3 0:e7ca326e76ee 48
mkersh3 0:e7ca326e76ee 49 /*--------------------------- rt_evt_wait -----------------------------------*/
mkersh3 0:e7ca326e76ee 50
mkersh3 0:e7ca326e76ee 51 OS_RESULT rt_evt_wait (U16 wait_flags, U16 timeout, BOOL and_wait) {
mkersh3 0:e7ca326e76ee 52 /* Wait for one or more event flags with optional time-out. */
mkersh3 0:e7ca326e76ee 53 /* "wait_flags" identifies the flags to wait for. */
mkersh3 0:e7ca326e76ee 54 /* "timeout" is the time-out limit in system ticks (0xffff if no time-out) */
mkersh3 0:e7ca326e76ee 55 /* "and_wait" specifies the AND-ing of "wait_flags" as condition to be met */
mkersh3 0:e7ca326e76ee 56 /* to complete the wait. (OR-ing if set to 0). */
mkersh3 0:e7ca326e76ee 57 U32 block_state;
mkersh3 0:e7ca326e76ee 58
mkersh3 0:e7ca326e76ee 59 if (and_wait) {
mkersh3 0:e7ca326e76ee 60 /* Check for AND-connected events */
mkersh3 0:e7ca326e76ee 61 if ((os_tsk.run->events & wait_flags) == wait_flags) {
mkersh3 0:e7ca326e76ee 62 os_tsk.run->events &= ~wait_flags;
mkersh3 0:e7ca326e76ee 63 return (OS_R_EVT);
mkersh3 0:e7ca326e76ee 64 }
mkersh3 0:e7ca326e76ee 65 block_state = WAIT_AND;
mkersh3 0:e7ca326e76ee 66 }
mkersh3 0:e7ca326e76ee 67 else {
mkersh3 0:e7ca326e76ee 68 /* Check for OR-connected events */
mkersh3 0:e7ca326e76ee 69 if (os_tsk.run->events & wait_flags) {
mkersh3 0:e7ca326e76ee 70 os_tsk.run->waits = os_tsk.run->events & wait_flags;
mkersh3 0:e7ca326e76ee 71 os_tsk.run->events &= ~wait_flags;
mkersh3 0:e7ca326e76ee 72 return (OS_R_EVT);
mkersh3 0:e7ca326e76ee 73 }
mkersh3 0:e7ca326e76ee 74 block_state = WAIT_OR;
mkersh3 0:e7ca326e76ee 75 }
mkersh3 0:e7ca326e76ee 76 /* Task has to wait */
mkersh3 0:e7ca326e76ee 77 os_tsk.run->waits = wait_flags;
mkersh3 0:e7ca326e76ee 78 rt_block (timeout, (U8)block_state);
mkersh3 0:e7ca326e76ee 79 return (OS_R_TMO);
mkersh3 0:e7ca326e76ee 80 }
mkersh3 0:e7ca326e76ee 81
mkersh3 0:e7ca326e76ee 82
mkersh3 0:e7ca326e76ee 83 /*--------------------------- rt_evt_set ------------------------------------*/
mkersh3 0:e7ca326e76ee 84
mkersh3 0:e7ca326e76ee 85 void rt_evt_set (U16 event_flags, OS_TID task_id) {
mkersh3 0:e7ca326e76ee 86 /* Set one or more event flags of a selectable task. */
mkersh3 0:e7ca326e76ee 87 P_TCB p_tcb;
mkersh3 0:e7ca326e76ee 88
mkersh3 0:e7ca326e76ee 89 p_tcb = os_active_TCB[task_id-1];
mkersh3 0:e7ca326e76ee 90 if (p_tcb == NULL) {
mkersh3 0:e7ca326e76ee 91 return;
mkersh3 0:e7ca326e76ee 92 }
mkersh3 0:e7ca326e76ee 93 p_tcb->events |= event_flags;
mkersh3 0:e7ca326e76ee 94 event_flags = p_tcb->waits;
mkersh3 0:e7ca326e76ee 95 /* If the task is not waiting for an event, it should not be put */
mkersh3 0:e7ca326e76ee 96 /* to ready state. */
mkersh3 0:e7ca326e76ee 97 if (p_tcb->state == WAIT_AND) {
mkersh3 0:e7ca326e76ee 98 /* Check for AND-connected events */
mkersh3 0:e7ca326e76ee 99 if ((p_tcb->events & event_flags) == event_flags) {
mkersh3 0:e7ca326e76ee 100 goto wkup;
mkersh3 0:e7ca326e76ee 101 }
mkersh3 0:e7ca326e76ee 102 }
mkersh3 0:e7ca326e76ee 103 if (p_tcb->state == WAIT_OR) {
mkersh3 0:e7ca326e76ee 104 /* Check for OR-connected events */
mkersh3 0:e7ca326e76ee 105 if (p_tcb->events & event_flags) {
mkersh3 0:e7ca326e76ee 106 p_tcb->waits &= p_tcb->events;
mkersh3 0:e7ca326e76ee 107 wkup: p_tcb->events &= ~event_flags;
mkersh3 0:e7ca326e76ee 108 rt_rmv_dly (p_tcb);
mkersh3 0:e7ca326e76ee 109 p_tcb->state = READY;
mkersh3 0:e7ca326e76ee 110 rt_ret_val2(p_tcb, 0x08/*osEventSignal*/, p_tcb->waits);
mkersh3 0:e7ca326e76ee 111 rt_dispatch (p_tcb);
mkersh3 0:e7ca326e76ee 112 }
mkersh3 0:e7ca326e76ee 113 }
mkersh3 0:e7ca326e76ee 114 }
mkersh3 0:e7ca326e76ee 115
mkersh3 0:e7ca326e76ee 116
mkersh3 0:e7ca326e76ee 117 /*--------------------------- rt_evt_clr ------------------------------------*/
mkersh3 0:e7ca326e76ee 118
mkersh3 0:e7ca326e76ee 119 void rt_evt_clr (U16 clear_flags, OS_TID task_id) {
mkersh3 0:e7ca326e76ee 120 /* Clear one or more event flags (identified by "clear_flags") of a */
mkersh3 0:e7ca326e76ee 121 /* selectable task (identified by "task"). */
mkersh3 0:e7ca326e76ee 122 P_TCB task = os_active_TCB[task_id-1];
mkersh3 0:e7ca326e76ee 123
mkersh3 0:e7ca326e76ee 124 if (task == NULL) {
mkersh3 0:e7ca326e76ee 125 return;
mkersh3 0:e7ca326e76ee 126 }
mkersh3 0:e7ca326e76ee 127 task->events &= ~clear_flags;
mkersh3 0:e7ca326e76ee 128 }
mkersh3 0:e7ca326e76ee 129
mkersh3 0:e7ca326e76ee 130
mkersh3 0:e7ca326e76ee 131 /*--------------------------- isr_evt_set -----------------------------------*/
mkersh3 0:e7ca326e76ee 132
mkersh3 0:e7ca326e76ee 133 void isr_evt_set (U16 event_flags, OS_TID task_id) {
mkersh3 0:e7ca326e76ee 134 /* Same function as "os_evt_set", but to be called by ISRs. */
mkersh3 0:e7ca326e76ee 135 P_TCB p_tcb = os_active_TCB[task_id-1];
mkersh3 0:e7ca326e76ee 136
mkersh3 0:e7ca326e76ee 137 if (p_tcb == NULL) {
mkersh3 0:e7ca326e76ee 138 return;
mkersh3 0:e7ca326e76ee 139 }
mkersh3 0:e7ca326e76ee 140 rt_psq_enq (p_tcb, event_flags);
mkersh3 0:e7ca326e76ee 141 rt_psh_req ();
mkersh3 0:e7ca326e76ee 142 }
mkersh3 0:e7ca326e76ee 143
mkersh3 0:e7ca326e76ee 144
mkersh3 0:e7ca326e76ee 145 /*--------------------------- rt_evt_get ------------------------------------*/
mkersh3 0:e7ca326e76ee 146
mkersh3 0:e7ca326e76ee 147 U16 rt_evt_get (void) {
mkersh3 0:e7ca326e76ee 148 /* Get events of a running task after waiting for OR connected events. */
mkersh3 0:e7ca326e76ee 149 return (os_tsk.run->waits);
mkersh3 0:e7ca326e76ee 150 }
mkersh3 0:e7ca326e76ee 151
mkersh3 0:e7ca326e76ee 152
mkersh3 0:e7ca326e76ee 153 /*--------------------------- rt_evt_psh ------------------------------------*/
mkersh3 0:e7ca326e76ee 154
mkersh3 0:e7ca326e76ee 155 void rt_evt_psh (P_TCB p_CB, U16 set_flags) {
mkersh3 0:e7ca326e76ee 156 /* Check if task has to be waken up */
mkersh3 0:e7ca326e76ee 157 U16 event_flags;
mkersh3 0:e7ca326e76ee 158
mkersh3 0:e7ca326e76ee 159 p_CB->events |= set_flags;
mkersh3 0:e7ca326e76ee 160 event_flags = p_CB->waits;
mkersh3 0:e7ca326e76ee 161 if (p_CB->state == WAIT_AND) {
mkersh3 0:e7ca326e76ee 162 /* Check for AND-connected events */
mkersh3 0:e7ca326e76ee 163 if ((p_CB->events & event_flags) == event_flags) {
mkersh3 0:e7ca326e76ee 164 goto rdy;
mkersh3 0:e7ca326e76ee 165 }
mkersh3 0:e7ca326e76ee 166 }
mkersh3 0:e7ca326e76ee 167 if (p_CB->state == WAIT_OR) {
mkersh3 0:e7ca326e76ee 168 /* Check for OR-connected events */
mkersh3 0:e7ca326e76ee 169 if (p_CB->events & event_flags) {
mkersh3 0:e7ca326e76ee 170 p_CB->waits &= p_CB->events;
mkersh3 0:e7ca326e76ee 171 rdy: p_CB->events &= ~event_flags;
mkersh3 0:e7ca326e76ee 172 rt_rmv_dly (p_CB);
mkersh3 0:e7ca326e76ee 173 p_CB->state = READY;
mkersh3 0:e7ca326e76ee 174 rt_ret_val2(p_CB, 0x08/*osEventSignal*/, p_CB->waits);
mkersh3 0:e7ca326e76ee 175 rt_put_prio (&os_rdy, p_CB);
mkersh3 0:e7ca326e76ee 176 }
mkersh3 0:e7ca326e76ee 177 }
mkersh3 0:e7ca326e76ee 178 }
mkersh3 0:e7ca326e76ee 179
mkersh3 0:e7ca326e76ee 180 /*----------------------------------------------------------------------------
mkersh3 0:e7ca326e76ee 181 * end of file
mkersh3 0:e7ca326e76ee 182 *---------------------------------------------------------------------------*/