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Dependents:   Mecatro_Filtre

rtx/TARGET_ARM7/rt_Mailbox.c@0:4a2c9c1f5b9e, 2021-03-15 (annotated)

Committer:
mecatro_prod
Date:
Mon Mar 15 14:18:11 2021 +0000
Revision:
0:4a2c9c1f5b9e
Pas de changement

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mecatro_prod 0:4a2c9c1f5b9e 1 /*----------------------------------------------------------------------------
mecatro_prod 0:4a2c9c1f5b9e 2 * RL-ARM - RTX
mecatro_prod 0:4a2c9c1f5b9e 3 *----------------------------------------------------------------------------
mecatro_prod 0:4a2c9c1f5b9e 4 * Name: RT_MAILBOX.C
mecatro_prod 0:4a2c9c1f5b9e 5 * Purpose: Implements waits and wake-ups for mailbox messages
mecatro_prod 0:4a2c9c1f5b9e 6 * Rev.: V4.60
mecatro_prod 0:4a2c9c1f5b9e 7 *----------------------------------------------------------------------------
mecatro_prod 0:4a2c9c1f5b9e 8 *
mecatro_prod 0:4a2c9c1f5b9e 9 * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
mecatro_prod 0:4a2c9c1f5b9e 10 * All rights reserved.
mecatro_prod 0:4a2c9c1f5b9e 11 * Redistribution and use in source and binary forms, with or without
mecatro_prod 0:4a2c9c1f5b9e 12 * modification, are permitted provided that the following conditions are met:
mecatro_prod 0:4a2c9c1f5b9e 13 * - Redistributions of source code must retain the above copyright
mecatro_prod 0:4a2c9c1f5b9e 14 * notice, this list of conditions and the following disclaimer.
mecatro_prod 0:4a2c9c1f5b9e 15 * - Redistributions in binary form must reproduce the above copyright
mecatro_prod 0:4a2c9c1f5b9e 16 * notice, this list of conditions and the following disclaimer in the
mecatro_prod 0:4a2c9c1f5b9e 17 * documentation and/or other materials provided with the distribution.
mecatro_prod 0:4a2c9c1f5b9e 18 * - Neither the name of ARM nor the names of its contributors may be used
mecatro_prod 0:4a2c9c1f5b9e 19 * to endorse or promote products derived from this software without
mecatro_prod 0:4a2c9c1f5b9e 20 * specific prior written permission.
mecatro_prod 0:4a2c9c1f5b9e 21 *
mecatro_prod 0:4a2c9c1f5b9e 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mecatro_prod 0:4a2c9c1f5b9e 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mecatro_prod 0:4a2c9c1f5b9e 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mecatro_prod 0:4a2c9c1f5b9e 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mecatro_prod 0:4a2c9c1f5b9e 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mecatro_prod 0:4a2c9c1f5b9e 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mecatro_prod 0:4a2c9c1f5b9e 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mecatro_prod 0:4a2c9c1f5b9e 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mecatro_prod 0:4a2c9c1f5b9e 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mecatro_prod 0:4a2c9c1f5b9e 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mecatro_prod 0:4a2c9c1f5b9e 32 * POSSIBILITY OF SUCH DAMAGE.
mecatro_prod 0:4a2c9c1f5b9e 33 *---------------------------------------------------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 34
mecatro_prod 0:4a2c9c1f5b9e 35 #include "rt_TypeDef.h"
mecatro_prod 0:4a2c9c1f5b9e 36 #include "RTX_Conf.h"
mecatro_prod 0:4a2c9c1f5b9e 37 #include "rt_System.h"
mecatro_prod 0:4a2c9c1f5b9e 38 #include "rt_List.h"
mecatro_prod 0:4a2c9c1f5b9e 39 #include "rt_Mailbox.h"
mecatro_prod 0:4a2c9c1f5b9e 40 #include "rt_MemBox.h"
mecatro_prod 0:4a2c9c1f5b9e 41 #include "rt_Task.h"
mecatro_prod 0:4a2c9c1f5b9e 42 #include "rt_HAL_CM.h"
mecatro_prod 0:4a2c9c1f5b9e 43
mecatro_prod 0:4a2c9c1f5b9e 44
mecatro_prod 0:4a2c9c1f5b9e 45 /*----------------------------------------------------------------------------
mecatro_prod 0:4a2c9c1f5b9e 46 * Functions
mecatro_prod 0:4a2c9c1f5b9e 47 *---------------------------------------------------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 48
mecatro_prod 0:4a2c9c1f5b9e 49
mecatro_prod 0:4a2c9c1f5b9e 50 /*--------------------------- rt_mbx_init -----------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 51
mecatro_prod 0:4a2c9c1f5b9e 52 void rt_mbx_init (OS_ID mailbox, U16 mbx_size) {
mecatro_prod 0:4a2c9c1f5b9e 53 /* Initialize a mailbox */
mecatro_prod 0:4a2c9c1f5b9e 54 P_MCB p_MCB = mailbox;
mecatro_prod 0:4a2c9c1f5b9e 55
mecatro_prod 0:4a2c9c1f5b9e 56 p_MCB->cb_type = MCB;
mecatro_prod 0:4a2c9c1f5b9e 57 p_MCB->state = 0;
mecatro_prod 0:4a2c9c1f5b9e 58 p_MCB->isr_st = 0;
mecatro_prod 0:4a2c9c1f5b9e 59 p_MCB->p_lnk = NULL;
mecatro_prod 0:4a2c9c1f5b9e 60 p_MCB->first = 0;
mecatro_prod 0:4a2c9c1f5b9e 61 p_MCB->last = 0;
mecatro_prod 0:4a2c9c1f5b9e 62 p_MCB->count = 0;
mecatro_prod 0:4a2c9c1f5b9e 63 p_MCB->size = (mbx_size + sizeof(void *) - sizeof(struct OS_MCB)) /
mecatro_prod 0:4a2c9c1f5b9e 64 (U32)sizeof (void *);
mecatro_prod 0:4a2c9c1f5b9e 65 }
mecatro_prod 0:4a2c9c1f5b9e 66
mecatro_prod 0:4a2c9c1f5b9e 67
mecatro_prod 0:4a2c9c1f5b9e 68 /*--------------------------- rt_mbx_send -----------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 69
mecatro_prod 0:4a2c9c1f5b9e 70 OS_RESULT rt_mbx_send (OS_ID mailbox, void *p_msg, U16 timeout) {
mecatro_prod 0:4a2c9c1f5b9e 71 /* Send message to a mailbox */
mecatro_prod 0:4a2c9c1f5b9e 72 P_MCB p_MCB = mailbox;
mecatro_prod 0:4a2c9c1f5b9e 73 P_TCB p_TCB;
mecatro_prod 0:4a2c9c1f5b9e 74
mecatro_prod 0:4a2c9c1f5b9e 75 if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 1)) {
mecatro_prod 0:4a2c9c1f5b9e 76 /* A task is waiting for message */
mecatro_prod 0:4a2c9c1f5b9e 77 p_TCB = rt_get_first ((P_XCB)p_MCB);
mecatro_prod 0:4a2c9c1f5b9e 78 #ifdef __CMSIS_RTOS
mecatro_prod 0:4a2c9c1f5b9e 79 rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
mecatro_prod 0:4a2c9c1f5b9e 80 #else
mecatro_prod 0:4a2c9c1f5b9e 81 *p_TCB->msg = p_msg;
mecatro_prod 0:4a2c9c1f5b9e 82 rt_ret_val (p_TCB, OS_R_MBX);
mecatro_prod 0:4a2c9c1f5b9e 83 #endif
mecatro_prod 0:4a2c9c1f5b9e 84 rt_rmv_dly (p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 85 rt_dispatch (p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 86 }
mecatro_prod 0:4a2c9c1f5b9e 87 else {
mecatro_prod 0:4a2c9c1f5b9e 88 /* Store message in mailbox queue */
mecatro_prod 0:4a2c9c1f5b9e 89 if (p_MCB->count == p_MCB->size) {
mecatro_prod 0:4a2c9c1f5b9e 90 /* No free message entry, wait for one. If message queue is full, */
mecatro_prod 0:4a2c9c1f5b9e 91 /* then no task is waiting for message. The 'p_MCB->p_lnk' list */
mecatro_prod 0:4a2c9c1f5b9e 92 /* pointer can now be reused for send message waits task list. */
mecatro_prod 0:4a2c9c1f5b9e 93 if (timeout == 0) {
mecatro_prod 0:4a2c9c1f5b9e 94 return (OS_R_TMO);
mecatro_prod 0:4a2c9c1f5b9e 95 }
mecatro_prod 0:4a2c9c1f5b9e 96 if (p_MCB->p_lnk != NULL) {
mecatro_prod 0:4a2c9c1f5b9e 97 rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
mecatro_prod 0:4a2c9c1f5b9e 98 }
mecatro_prod 0:4a2c9c1f5b9e 99 else {
mecatro_prod 0:4a2c9c1f5b9e 100 p_MCB->p_lnk = os_tsk.run;
mecatro_prod 0:4a2c9c1f5b9e 101 os_tsk.run->p_lnk = NULL;
mecatro_prod 0:4a2c9c1f5b9e 102 os_tsk.run->p_rlnk = (P_TCB)p_MCB;
mecatro_prod 0:4a2c9c1f5b9e 103 /* Task is waiting to send a message */
mecatro_prod 0:4a2c9c1f5b9e 104 p_MCB->state = 2;
mecatro_prod 0:4a2c9c1f5b9e 105 }
mecatro_prod 0:4a2c9c1f5b9e 106 os_tsk.run->msg = p_msg;
mecatro_prod 0:4a2c9c1f5b9e 107 rt_block (timeout, WAIT_MBX);
mecatro_prod 0:4a2c9c1f5b9e 108 return (OS_R_TMO);
mecatro_prod 0:4a2c9c1f5b9e 109 }
mecatro_prod 0:4a2c9c1f5b9e 110 /* Yes, there is a free entry in a mailbox. */
mecatro_prod 0:4a2c9c1f5b9e 111 p_MCB->msg[p_MCB->first] = p_msg;
mecatro_prod 0:4a2c9c1f5b9e 112 rt_inc (&p_MCB->count);
mecatro_prod 0:4a2c9c1f5b9e 113 if (++p_MCB->first == p_MCB->size) {
mecatro_prod 0:4a2c9c1f5b9e 114 p_MCB->first = 0;
mecatro_prod 0:4a2c9c1f5b9e 115 }
mecatro_prod 0:4a2c9c1f5b9e 116 }
mecatro_prod 0:4a2c9c1f5b9e 117 return (OS_R_OK);
mecatro_prod 0:4a2c9c1f5b9e 118 }
mecatro_prod 0:4a2c9c1f5b9e 119
mecatro_prod 0:4a2c9c1f5b9e 120
mecatro_prod 0:4a2c9c1f5b9e 121 /*--------------------------- rt_mbx_wait -----------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 122
mecatro_prod 0:4a2c9c1f5b9e 123 OS_RESULT rt_mbx_wait (OS_ID mailbox, void **message, U16 timeout) {
mecatro_prod 0:4a2c9c1f5b9e 124 /* Receive a message; possibly wait for it */
mecatro_prod 0:4a2c9c1f5b9e 125 P_MCB p_MCB = mailbox;
mecatro_prod 0:4a2c9c1f5b9e 126 P_TCB p_TCB;
mecatro_prod 0:4a2c9c1f5b9e 127
mecatro_prod 0:4a2c9c1f5b9e 128 /* If a message is available in the fifo buffer */
mecatro_prod 0:4a2c9c1f5b9e 129 /* remove it from the fifo buffer and return. */
mecatro_prod 0:4a2c9c1f5b9e 130 if (p_MCB->count) {
mecatro_prod 0:4a2c9c1f5b9e 131 *message = p_MCB->msg[p_MCB->last];
mecatro_prod 0:4a2c9c1f5b9e 132 if (++p_MCB->last == p_MCB->size) {
mecatro_prod 0:4a2c9c1f5b9e 133 p_MCB->last = 0;
mecatro_prod 0:4a2c9c1f5b9e 134 }
mecatro_prod 0:4a2c9c1f5b9e 135 if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 2)) {
mecatro_prod 0:4a2c9c1f5b9e 136 /* A task is waiting to send message */
mecatro_prod 0:4a2c9c1f5b9e 137 p_TCB = rt_get_first ((P_XCB)p_MCB);
mecatro_prod 0:4a2c9c1f5b9e 138 #ifdef __CMSIS_RTOS
mecatro_prod 0:4a2c9c1f5b9e 139 rt_ret_val(p_TCB, 0/*osOK*/);
mecatro_prod 0:4a2c9c1f5b9e 140 #else
mecatro_prod 0:4a2c9c1f5b9e 141 rt_ret_val(p_TCB, OS_R_OK);
mecatro_prod 0:4a2c9c1f5b9e 142 #endif
mecatro_prod 0:4a2c9c1f5b9e 143 p_MCB->msg[p_MCB->first] = p_TCB->msg;
mecatro_prod 0:4a2c9c1f5b9e 144 if (++p_MCB->first == p_MCB->size) {
mecatro_prod 0:4a2c9c1f5b9e 145 p_MCB->first = 0;
mecatro_prod 0:4a2c9c1f5b9e 146 }
mecatro_prod 0:4a2c9c1f5b9e 147 rt_rmv_dly (p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 148 rt_dispatch (p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 149 }
mecatro_prod 0:4a2c9c1f5b9e 150 else {
mecatro_prod 0:4a2c9c1f5b9e 151 rt_dec (&p_MCB->count);
mecatro_prod 0:4a2c9c1f5b9e 152 }
mecatro_prod 0:4a2c9c1f5b9e 153 return (OS_R_OK);
mecatro_prod 0:4a2c9c1f5b9e 154 }
mecatro_prod 0:4a2c9c1f5b9e 155 /* No message available: wait for one */
mecatro_prod 0:4a2c9c1f5b9e 156 if (timeout == 0) {
mecatro_prod 0:4a2c9c1f5b9e 157 return (OS_R_TMO);
mecatro_prod 0:4a2c9c1f5b9e 158 }
mecatro_prod 0:4a2c9c1f5b9e 159 if (p_MCB->p_lnk != NULL) {
mecatro_prod 0:4a2c9c1f5b9e 160 rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
mecatro_prod 0:4a2c9c1f5b9e 161 }
mecatro_prod 0:4a2c9c1f5b9e 162 else {
mecatro_prod 0:4a2c9c1f5b9e 163 p_MCB->p_lnk = os_tsk.run;
mecatro_prod 0:4a2c9c1f5b9e 164 os_tsk.run->p_lnk = NULL;
mecatro_prod 0:4a2c9c1f5b9e 165 os_tsk.run->p_rlnk = (P_TCB)p_MCB;
mecatro_prod 0:4a2c9c1f5b9e 166 /* Task is waiting to receive a message */
mecatro_prod 0:4a2c9c1f5b9e 167 p_MCB->state = 1;
mecatro_prod 0:4a2c9c1f5b9e 168 }
mecatro_prod 0:4a2c9c1f5b9e 169 rt_block(timeout, WAIT_MBX);
mecatro_prod 0:4a2c9c1f5b9e 170 #ifndef __CMSIS_RTOS
mecatro_prod 0:4a2c9c1f5b9e 171 os_tsk.run->msg = message;
mecatro_prod 0:4a2c9c1f5b9e 172 #endif
mecatro_prod 0:4a2c9c1f5b9e 173 return (OS_R_TMO);
mecatro_prod 0:4a2c9c1f5b9e 174 }
mecatro_prod 0:4a2c9c1f5b9e 175
mecatro_prod 0:4a2c9c1f5b9e 176
mecatro_prod 0:4a2c9c1f5b9e 177 /*--------------------------- rt_mbx_check ----------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 178
mecatro_prod 0:4a2c9c1f5b9e 179 OS_RESULT rt_mbx_check (OS_ID mailbox) {
mecatro_prod 0:4a2c9c1f5b9e 180 /* Check for free space in a mailbox. Returns the number of messages */
mecatro_prod 0:4a2c9c1f5b9e 181 /* that can be stored to a mailbox. It returns 0 when mailbox is full. */
mecatro_prod 0:4a2c9c1f5b9e 182 P_MCB p_MCB = mailbox;
mecatro_prod 0:4a2c9c1f5b9e 183
mecatro_prod 0:4a2c9c1f5b9e 184 return (p_MCB->size - p_MCB->count);
mecatro_prod 0:4a2c9c1f5b9e 185 }
mecatro_prod 0:4a2c9c1f5b9e 186
mecatro_prod 0:4a2c9c1f5b9e 187
mecatro_prod 0:4a2c9c1f5b9e 188 /*--------------------------- isr_mbx_send ----------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 189
mecatro_prod 0:4a2c9c1f5b9e 190 void isr_mbx_send (OS_ID mailbox, void *p_msg) {
mecatro_prod 0:4a2c9c1f5b9e 191 /* Same function as "os_mbx_send", but to be called by ISRs. */
mecatro_prod 0:4a2c9c1f5b9e 192 P_MCB p_MCB = mailbox;
mecatro_prod 0:4a2c9c1f5b9e 193
mecatro_prod 0:4a2c9c1f5b9e 194 rt_psq_enq (p_MCB, (U32)p_msg);
mecatro_prod 0:4a2c9c1f5b9e 195 rt_psh_req ();
mecatro_prod 0:4a2c9c1f5b9e 196 }
mecatro_prod 0:4a2c9c1f5b9e 197
mecatro_prod 0:4a2c9c1f5b9e 198
mecatro_prod 0:4a2c9c1f5b9e 199 /*--------------------------- isr_mbx_receive -------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 200
mecatro_prod 0:4a2c9c1f5b9e 201 OS_RESULT isr_mbx_receive (OS_ID mailbox, void **message) {
mecatro_prod 0:4a2c9c1f5b9e 202 /* Receive a message in the interrupt function. The interrupt function */
mecatro_prod 0:4a2c9c1f5b9e 203 /* should not wait for a message since this would block the rtx os. */
mecatro_prod 0:4a2c9c1f5b9e 204 P_MCB p_MCB = mailbox;
mecatro_prod 0:4a2c9c1f5b9e 205
mecatro_prod 0:4a2c9c1f5b9e 206 if (p_MCB->count) {
mecatro_prod 0:4a2c9c1f5b9e 207 /* A message is available in the fifo buffer. */
mecatro_prod 0:4a2c9c1f5b9e 208 *message = p_MCB->msg[p_MCB->last];
mecatro_prod 0:4a2c9c1f5b9e 209 if (p_MCB->state == 2) {
mecatro_prod 0:4a2c9c1f5b9e 210 /* A task is locked waiting to send message */
mecatro_prod 0:4a2c9c1f5b9e 211 rt_psq_enq (p_MCB, 0);
mecatro_prod 0:4a2c9c1f5b9e 212 rt_psh_req ();
mecatro_prod 0:4a2c9c1f5b9e 213 }
mecatro_prod 0:4a2c9c1f5b9e 214 rt_dec (&p_MCB->count);
mecatro_prod 0:4a2c9c1f5b9e 215 if (++p_MCB->last == p_MCB->size) {
mecatro_prod 0:4a2c9c1f5b9e 216 p_MCB->last = 0;
mecatro_prod 0:4a2c9c1f5b9e 217 }
mecatro_prod 0:4a2c9c1f5b9e 218 return (OS_R_MBX);
mecatro_prod 0:4a2c9c1f5b9e 219 }
mecatro_prod 0:4a2c9c1f5b9e 220 return (OS_R_OK);
mecatro_prod 0:4a2c9c1f5b9e 221 }
mecatro_prod 0:4a2c9c1f5b9e 222
mecatro_prod 0:4a2c9c1f5b9e 223
mecatro_prod 0:4a2c9c1f5b9e 224 /*--------------------------- rt_mbx_psh ------------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 225
mecatro_prod 0:4a2c9c1f5b9e 226 void rt_mbx_psh (P_MCB p_CB, void *p_msg) {
mecatro_prod 0:4a2c9c1f5b9e 227 /* Store the message to the mailbox queue or pass it to task directly. */
mecatro_prod 0:4a2c9c1f5b9e 228 P_TCB p_TCB;
mecatro_prod 0:4a2c9c1f5b9e 229 void *mem;
mecatro_prod 0:4a2c9c1f5b9e 230
mecatro_prod 0:4a2c9c1f5b9e 231 if (p_CB->p_lnk != NULL) switch (p_CB->state) {
mecatro_prod 0:4a2c9c1f5b9e 232 #ifdef __CMSIS_RTOS
mecatro_prod 0:4a2c9c1f5b9e 233 case 3:
mecatro_prod 0:4a2c9c1f5b9e 234 /* Task is waiting to allocate memory, remove it from the waiting list */
mecatro_prod 0:4a2c9c1f5b9e 235 mem = rt_alloc_box(p_msg);
mecatro_prod 0:4a2c9c1f5b9e 236 if (mem == NULL) break;
mecatro_prod 0:4a2c9c1f5b9e 237 p_TCB = rt_get_first ((P_XCB)p_CB);
mecatro_prod 0:4a2c9c1f5b9e 238 rt_ret_val(p_TCB, (U32)mem);
mecatro_prod 0:4a2c9c1f5b9e 239 p_TCB->state = READY;
mecatro_prod 0:4a2c9c1f5b9e 240 rt_rmv_dly (p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 241 rt_put_prio (&os_rdy, p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 242 break;
mecatro_prod 0:4a2c9c1f5b9e 243 #endif
mecatro_prod 0:4a2c9c1f5b9e 244 case 2:
mecatro_prod 0:4a2c9c1f5b9e 245 /* Task is waiting to send a message, remove it from the waiting list */
mecatro_prod 0:4a2c9c1f5b9e 246 p_TCB = rt_get_first ((P_XCB)p_CB);
mecatro_prod 0:4a2c9c1f5b9e 247 #ifdef __CMSIS_RTOS
mecatro_prod 0:4a2c9c1f5b9e 248 rt_ret_val(p_TCB, 0/*osOK*/);
mecatro_prod 0:4a2c9c1f5b9e 249 #else
mecatro_prod 0:4a2c9c1f5b9e 250 rt_ret_val(p_TCB, OS_R_OK);
mecatro_prod 0:4a2c9c1f5b9e 251 #endif
mecatro_prod 0:4a2c9c1f5b9e 252 p_CB->msg[p_CB->first] = p_TCB->msg;
mecatro_prod 0:4a2c9c1f5b9e 253 rt_inc (&p_CB->count);
mecatro_prod 0:4a2c9c1f5b9e 254 if (++p_CB->first == p_CB->size) {
mecatro_prod 0:4a2c9c1f5b9e 255 p_CB->first = 0;
mecatro_prod 0:4a2c9c1f5b9e 256 }
mecatro_prod 0:4a2c9c1f5b9e 257 p_TCB->state = READY;
mecatro_prod 0:4a2c9c1f5b9e 258 rt_rmv_dly (p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 259 rt_put_prio (&os_rdy, p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 260 break;
mecatro_prod 0:4a2c9c1f5b9e 261 case 1:
mecatro_prod 0:4a2c9c1f5b9e 262 /* Task is waiting for a message, pass the message to the task directly */
mecatro_prod 0:4a2c9c1f5b9e 263 p_TCB = rt_get_first ((P_XCB)p_CB);
mecatro_prod 0:4a2c9c1f5b9e 264 #ifdef __CMSIS_RTOS
mecatro_prod 0:4a2c9c1f5b9e 265 rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
mecatro_prod 0:4a2c9c1f5b9e 266 #else
mecatro_prod 0:4a2c9c1f5b9e 267 *p_TCB->msg = p_msg;
mecatro_prod 0:4a2c9c1f5b9e 268 rt_ret_val (p_TCB, OS_R_MBX);
mecatro_prod 0:4a2c9c1f5b9e 269 #endif
mecatro_prod 0:4a2c9c1f5b9e 270 p_TCB->state = READY;
mecatro_prod 0:4a2c9c1f5b9e 271 rt_rmv_dly (p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 272 rt_put_prio (&os_rdy, p_TCB);
mecatro_prod 0:4a2c9c1f5b9e 273 break;
mecatro_prod 0:4a2c9c1f5b9e 274 } else {
mecatro_prod 0:4a2c9c1f5b9e 275 /* No task is waiting for a message, store it to the mailbox queue */
mecatro_prod 0:4a2c9c1f5b9e 276 if (p_CB->count < p_CB->size) {
mecatro_prod 0:4a2c9c1f5b9e 277 p_CB->msg[p_CB->first] = p_msg;
mecatro_prod 0:4a2c9c1f5b9e 278 rt_inc (&p_CB->count);
mecatro_prod 0:4a2c9c1f5b9e 279 if (++p_CB->first == p_CB->size) {
mecatro_prod 0:4a2c9c1f5b9e 280 p_CB->first = 0;
mecatro_prod 0:4a2c9c1f5b9e 281 }
mecatro_prod 0:4a2c9c1f5b9e 282 }
mecatro_prod 0:4a2c9c1f5b9e 283 else {
mecatro_prod 0:4a2c9c1f5b9e 284 os_error (OS_ERR_MBX_OVF);
mecatro_prod 0:4a2c9c1f5b9e 285 }
mecatro_prod 0:4a2c9c1f5b9e 286 }
mecatro_prod 0:4a2c9c1f5b9e 287 }
mecatro_prod 0:4a2c9c1f5b9e 288
mecatro_prod 0:4a2c9c1f5b9e 289 /*----------------------------------------------------------------------------
mecatro_prod 0:4a2c9c1f5b9e 290 * end of file
mecatro_prod 0:4a2c9c1f5b9e 291 *---------------------------------------------------------------------------*/
mecatro_prod 0:4a2c9c1f5b9e 292