Daoyu_Sofiane Yao_Belouka / mbed-rtos

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Dependents:   Mecatro_Gyro_Programme_Codeur_HC06

rtx/TARGET_ARM7/rt_Mailbox.c@0:a8ed743bc1e1, 2021-04-16 (annotated)

Committer:
daoyu_sofiane
Date:
Fri Apr 16 09:25:33 2021 +0000
Revision:
0:a8ed743bc1e1
Projet Gyropode

Who changed what in which revision?

UserRevisionLine numberNew contents of line
daoyu_sofiane 0:a8ed743bc1e1 1 /*----------------------------------------------------------------------------
daoyu_sofiane 0:a8ed743bc1e1 2 * RL-ARM - RTX
daoyu_sofiane 0:a8ed743bc1e1 3 *----------------------------------------------------------------------------
daoyu_sofiane 0:a8ed743bc1e1 4 * Name: RT_MAILBOX.C
daoyu_sofiane 0:a8ed743bc1e1 5 * Purpose: Implements waits and wake-ups for mailbox messages
daoyu_sofiane 0:a8ed743bc1e1 6 * Rev.: V4.60
daoyu_sofiane 0:a8ed743bc1e1 7 *----------------------------------------------------------------------------
daoyu_sofiane 0:a8ed743bc1e1 8 *
daoyu_sofiane 0:a8ed743bc1e1 9 * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
daoyu_sofiane 0:a8ed743bc1e1 10 * All rights reserved.
daoyu_sofiane 0:a8ed743bc1e1 11 * Redistribution and use in source and binary forms, with or without
daoyu_sofiane 0:a8ed743bc1e1 12 * modification, are permitted provided that the following conditions are met:
daoyu_sofiane 0:a8ed743bc1e1 13 * - Redistributions of source code must retain the above copyright
daoyu_sofiane 0:a8ed743bc1e1 14 * notice, this list of conditions and the following disclaimer.
daoyu_sofiane 0:a8ed743bc1e1 15 * - Redistributions in binary form must reproduce the above copyright
daoyu_sofiane 0:a8ed743bc1e1 16 * notice, this list of conditions and the following disclaimer in the
daoyu_sofiane 0:a8ed743bc1e1 17 * documentation and/or other materials provided with the distribution.
daoyu_sofiane 0:a8ed743bc1e1 18 * - Neither the name of ARM nor the names of its contributors may be used
daoyu_sofiane 0:a8ed743bc1e1 19 * to endorse or promote products derived from this software without
daoyu_sofiane 0:a8ed743bc1e1 20 * specific prior written permission.
daoyu_sofiane 0:a8ed743bc1e1 21 *
daoyu_sofiane 0:a8ed743bc1e1 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
daoyu_sofiane 0:a8ed743bc1e1 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
daoyu_sofiane 0:a8ed743bc1e1 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
daoyu_sofiane 0:a8ed743bc1e1 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
daoyu_sofiane 0:a8ed743bc1e1 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
daoyu_sofiane 0:a8ed743bc1e1 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
daoyu_sofiane 0:a8ed743bc1e1 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
daoyu_sofiane 0:a8ed743bc1e1 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
daoyu_sofiane 0:a8ed743bc1e1 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
daoyu_sofiane 0:a8ed743bc1e1 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
daoyu_sofiane 0:a8ed743bc1e1 32 * POSSIBILITY OF SUCH DAMAGE.
daoyu_sofiane 0:a8ed743bc1e1 33 *---------------------------------------------------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 34
daoyu_sofiane 0:a8ed743bc1e1 35 #include "rt_TypeDef.h"
daoyu_sofiane 0:a8ed743bc1e1 36 #include "RTX_Conf.h"
daoyu_sofiane 0:a8ed743bc1e1 37 #include "rt_System.h"
daoyu_sofiane 0:a8ed743bc1e1 38 #include "rt_List.h"
daoyu_sofiane 0:a8ed743bc1e1 39 #include "rt_Mailbox.h"
daoyu_sofiane 0:a8ed743bc1e1 40 #include "rt_MemBox.h"
daoyu_sofiane 0:a8ed743bc1e1 41 #include "rt_Task.h"
daoyu_sofiane 0:a8ed743bc1e1 42 #include "rt_HAL_CM.h"
daoyu_sofiane 0:a8ed743bc1e1 43
daoyu_sofiane 0:a8ed743bc1e1 44
daoyu_sofiane 0:a8ed743bc1e1 45 /*----------------------------------------------------------------------------
daoyu_sofiane 0:a8ed743bc1e1 46 * Functions
daoyu_sofiane 0:a8ed743bc1e1 47 *---------------------------------------------------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 48
daoyu_sofiane 0:a8ed743bc1e1 49
daoyu_sofiane 0:a8ed743bc1e1 50 /*--------------------------- rt_mbx_init -----------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 51
daoyu_sofiane 0:a8ed743bc1e1 52 void rt_mbx_init (OS_ID mailbox, U16 mbx_size) {
daoyu_sofiane 0:a8ed743bc1e1 53 /* Initialize a mailbox */
daoyu_sofiane 0:a8ed743bc1e1 54 P_MCB p_MCB = mailbox;
daoyu_sofiane 0:a8ed743bc1e1 55
daoyu_sofiane 0:a8ed743bc1e1 56 p_MCB->cb_type = MCB;
daoyu_sofiane 0:a8ed743bc1e1 57 p_MCB->state = 0;
daoyu_sofiane 0:a8ed743bc1e1 58 p_MCB->isr_st = 0;
daoyu_sofiane 0:a8ed743bc1e1 59 p_MCB->p_lnk = NULL;
daoyu_sofiane 0:a8ed743bc1e1 60 p_MCB->first = 0;
daoyu_sofiane 0:a8ed743bc1e1 61 p_MCB->last = 0;
daoyu_sofiane 0:a8ed743bc1e1 62 p_MCB->count = 0;
daoyu_sofiane 0:a8ed743bc1e1 63 p_MCB->size = (mbx_size + sizeof(void *) - sizeof(struct OS_MCB)) /
daoyu_sofiane 0:a8ed743bc1e1 64 (U32)sizeof (void *);
daoyu_sofiane 0:a8ed743bc1e1 65 }
daoyu_sofiane 0:a8ed743bc1e1 66
daoyu_sofiane 0:a8ed743bc1e1 67
daoyu_sofiane 0:a8ed743bc1e1 68 /*--------------------------- rt_mbx_send -----------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 69
daoyu_sofiane 0:a8ed743bc1e1 70 OS_RESULT rt_mbx_send (OS_ID mailbox, void *p_msg, U16 timeout) {
daoyu_sofiane 0:a8ed743bc1e1 71 /* Send message to a mailbox */
daoyu_sofiane 0:a8ed743bc1e1 72 P_MCB p_MCB = mailbox;
daoyu_sofiane 0:a8ed743bc1e1 73 P_TCB p_TCB;
daoyu_sofiane 0:a8ed743bc1e1 74
daoyu_sofiane 0:a8ed743bc1e1 75 if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 1)) {
daoyu_sofiane 0:a8ed743bc1e1 76 /* A task is waiting for message */
daoyu_sofiane 0:a8ed743bc1e1 77 p_TCB = rt_get_first ((P_XCB)p_MCB);
daoyu_sofiane 0:a8ed743bc1e1 78 #ifdef __CMSIS_RTOS
daoyu_sofiane 0:a8ed743bc1e1 79 rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
daoyu_sofiane 0:a8ed743bc1e1 80 #else
daoyu_sofiane 0:a8ed743bc1e1 81 *p_TCB->msg = p_msg;
daoyu_sofiane 0:a8ed743bc1e1 82 rt_ret_val (p_TCB, OS_R_MBX);
daoyu_sofiane 0:a8ed743bc1e1 83 #endif
daoyu_sofiane 0:a8ed743bc1e1 84 rt_rmv_dly (p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 85 rt_dispatch (p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 86 }
daoyu_sofiane 0:a8ed743bc1e1 87 else {
daoyu_sofiane 0:a8ed743bc1e1 88 /* Store message in mailbox queue */
daoyu_sofiane 0:a8ed743bc1e1 89 if (p_MCB->count == p_MCB->size) {
daoyu_sofiane 0:a8ed743bc1e1 90 /* No free message entry, wait for one. If message queue is full, */
daoyu_sofiane 0:a8ed743bc1e1 91 /* then no task is waiting for message. The 'p_MCB->p_lnk' list */
daoyu_sofiane 0:a8ed743bc1e1 92 /* pointer can now be reused for send message waits task list. */
daoyu_sofiane 0:a8ed743bc1e1 93 if (timeout == 0) {
daoyu_sofiane 0:a8ed743bc1e1 94 return (OS_R_TMO);
daoyu_sofiane 0:a8ed743bc1e1 95 }
daoyu_sofiane 0:a8ed743bc1e1 96 if (p_MCB->p_lnk != NULL) {
daoyu_sofiane 0:a8ed743bc1e1 97 rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
daoyu_sofiane 0:a8ed743bc1e1 98 }
daoyu_sofiane 0:a8ed743bc1e1 99 else {
daoyu_sofiane 0:a8ed743bc1e1 100 p_MCB->p_lnk = os_tsk.run;
daoyu_sofiane 0:a8ed743bc1e1 101 os_tsk.run->p_lnk = NULL;
daoyu_sofiane 0:a8ed743bc1e1 102 os_tsk.run->p_rlnk = (P_TCB)p_MCB;
daoyu_sofiane 0:a8ed743bc1e1 103 /* Task is waiting to send a message */
daoyu_sofiane 0:a8ed743bc1e1 104 p_MCB->state = 2;
daoyu_sofiane 0:a8ed743bc1e1 105 }
daoyu_sofiane 0:a8ed743bc1e1 106 os_tsk.run->msg = p_msg;
daoyu_sofiane 0:a8ed743bc1e1 107 rt_block (timeout, WAIT_MBX);
daoyu_sofiane 0:a8ed743bc1e1 108 return (OS_R_TMO);
daoyu_sofiane 0:a8ed743bc1e1 109 }
daoyu_sofiane 0:a8ed743bc1e1 110 /* Yes, there is a free entry in a mailbox. */
daoyu_sofiane 0:a8ed743bc1e1 111 p_MCB->msg[p_MCB->first] = p_msg;
daoyu_sofiane 0:a8ed743bc1e1 112 rt_inc (&p_MCB->count);
daoyu_sofiane 0:a8ed743bc1e1 113 if (++p_MCB->first == p_MCB->size) {
daoyu_sofiane 0:a8ed743bc1e1 114 p_MCB->first = 0;
daoyu_sofiane 0:a8ed743bc1e1 115 }
daoyu_sofiane 0:a8ed743bc1e1 116 }
daoyu_sofiane 0:a8ed743bc1e1 117 return (OS_R_OK);
daoyu_sofiane 0:a8ed743bc1e1 118 }
daoyu_sofiane 0:a8ed743bc1e1 119
daoyu_sofiane 0:a8ed743bc1e1 120
daoyu_sofiane 0:a8ed743bc1e1 121 /*--------------------------- rt_mbx_wait -----------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 122
daoyu_sofiane 0:a8ed743bc1e1 123 OS_RESULT rt_mbx_wait (OS_ID mailbox, void **message, U16 timeout) {
daoyu_sofiane 0:a8ed743bc1e1 124 /* Receive a message; possibly wait for it */
daoyu_sofiane 0:a8ed743bc1e1 125 P_MCB p_MCB = mailbox;
daoyu_sofiane 0:a8ed743bc1e1 126 P_TCB p_TCB;
daoyu_sofiane 0:a8ed743bc1e1 127
daoyu_sofiane 0:a8ed743bc1e1 128 /* If a message is available in the fifo buffer */
daoyu_sofiane 0:a8ed743bc1e1 129 /* remove it from the fifo buffer and return. */
daoyu_sofiane 0:a8ed743bc1e1 130 if (p_MCB->count) {
daoyu_sofiane 0:a8ed743bc1e1 131 *message = p_MCB->msg[p_MCB->last];
daoyu_sofiane 0:a8ed743bc1e1 132 if (++p_MCB->last == p_MCB->size) {
daoyu_sofiane 0:a8ed743bc1e1 133 p_MCB->last = 0;
daoyu_sofiane 0:a8ed743bc1e1 134 }
daoyu_sofiane 0:a8ed743bc1e1 135 if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 2)) {
daoyu_sofiane 0:a8ed743bc1e1 136 /* A task is waiting to send message */
daoyu_sofiane 0:a8ed743bc1e1 137 p_TCB = rt_get_first ((P_XCB)p_MCB);
daoyu_sofiane 0:a8ed743bc1e1 138 #ifdef __CMSIS_RTOS
daoyu_sofiane 0:a8ed743bc1e1 139 rt_ret_val(p_TCB, 0/*osOK*/);
daoyu_sofiane 0:a8ed743bc1e1 140 #else
daoyu_sofiane 0:a8ed743bc1e1 141 rt_ret_val(p_TCB, OS_R_OK);
daoyu_sofiane 0:a8ed743bc1e1 142 #endif
daoyu_sofiane 0:a8ed743bc1e1 143 p_MCB->msg[p_MCB->first] = p_TCB->msg;
daoyu_sofiane 0:a8ed743bc1e1 144 if (++p_MCB->first == p_MCB->size) {
daoyu_sofiane 0:a8ed743bc1e1 145 p_MCB->first = 0;
daoyu_sofiane 0:a8ed743bc1e1 146 }
daoyu_sofiane 0:a8ed743bc1e1 147 rt_rmv_dly (p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 148 rt_dispatch (p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 149 }
daoyu_sofiane 0:a8ed743bc1e1 150 else {
daoyu_sofiane 0:a8ed743bc1e1 151 rt_dec (&p_MCB->count);
daoyu_sofiane 0:a8ed743bc1e1 152 }
daoyu_sofiane 0:a8ed743bc1e1 153 return (OS_R_OK);
daoyu_sofiane 0:a8ed743bc1e1 154 }
daoyu_sofiane 0:a8ed743bc1e1 155 /* No message available: wait for one */
daoyu_sofiane 0:a8ed743bc1e1 156 if (timeout == 0) {
daoyu_sofiane 0:a8ed743bc1e1 157 return (OS_R_TMO);
daoyu_sofiane 0:a8ed743bc1e1 158 }
daoyu_sofiane 0:a8ed743bc1e1 159 if (p_MCB->p_lnk != NULL) {
daoyu_sofiane 0:a8ed743bc1e1 160 rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
daoyu_sofiane 0:a8ed743bc1e1 161 }
daoyu_sofiane 0:a8ed743bc1e1 162 else {
daoyu_sofiane 0:a8ed743bc1e1 163 p_MCB->p_lnk = os_tsk.run;
daoyu_sofiane 0:a8ed743bc1e1 164 os_tsk.run->p_lnk = NULL;
daoyu_sofiane 0:a8ed743bc1e1 165 os_tsk.run->p_rlnk = (P_TCB)p_MCB;
daoyu_sofiane 0:a8ed743bc1e1 166 /* Task is waiting to receive a message */
daoyu_sofiane 0:a8ed743bc1e1 167 p_MCB->state = 1;
daoyu_sofiane 0:a8ed743bc1e1 168 }
daoyu_sofiane 0:a8ed743bc1e1 169 rt_block(timeout, WAIT_MBX);
daoyu_sofiane 0:a8ed743bc1e1 170 #ifndef __CMSIS_RTOS
daoyu_sofiane 0:a8ed743bc1e1 171 os_tsk.run->msg = message;
daoyu_sofiane 0:a8ed743bc1e1 172 #endif
daoyu_sofiane 0:a8ed743bc1e1 173 return (OS_R_TMO);
daoyu_sofiane 0:a8ed743bc1e1 174 }
daoyu_sofiane 0:a8ed743bc1e1 175
daoyu_sofiane 0:a8ed743bc1e1 176
daoyu_sofiane 0:a8ed743bc1e1 177 /*--------------------------- rt_mbx_check ----------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 178
daoyu_sofiane 0:a8ed743bc1e1 179 OS_RESULT rt_mbx_check (OS_ID mailbox) {
daoyu_sofiane 0:a8ed743bc1e1 180 /* Check for free space in a mailbox. Returns the number of messages */
daoyu_sofiane 0:a8ed743bc1e1 181 /* that can be stored to a mailbox. It returns 0 when mailbox is full. */
daoyu_sofiane 0:a8ed743bc1e1 182 P_MCB p_MCB = mailbox;
daoyu_sofiane 0:a8ed743bc1e1 183
daoyu_sofiane 0:a8ed743bc1e1 184 return (p_MCB->size - p_MCB->count);
daoyu_sofiane 0:a8ed743bc1e1 185 }
daoyu_sofiane 0:a8ed743bc1e1 186
daoyu_sofiane 0:a8ed743bc1e1 187
daoyu_sofiane 0:a8ed743bc1e1 188 /*--------------------------- isr_mbx_send ----------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 189
daoyu_sofiane 0:a8ed743bc1e1 190 void isr_mbx_send (OS_ID mailbox, void *p_msg) {
daoyu_sofiane 0:a8ed743bc1e1 191 /* Same function as "os_mbx_send", but to be called by ISRs. */
daoyu_sofiane 0:a8ed743bc1e1 192 P_MCB p_MCB = mailbox;
daoyu_sofiane 0:a8ed743bc1e1 193
daoyu_sofiane 0:a8ed743bc1e1 194 rt_psq_enq (p_MCB, (U32)p_msg);
daoyu_sofiane 0:a8ed743bc1e1 195 rt_psh_req ();
daoyu_sofiane 0:a8ed743bc1e1 196 }
daoyu_sofiane 0:a8ed743bc1e1 197
daoyu_sofiane 0:a8ed743bc1e1 198
daoyu_sofiane 0:a8ed743bc1e1 199 /*--------------------------- isr_mbx_receive -------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 200
daoyu_sofiane 0:a8ed743bc1e1 201 OS_RESULT isr_mbx_receive (OS_ID mailbox, void **message) {
daoyu_sofiane 0:a8ed743bc1e1 202 /* Receive a message in the interrupt function. The interrupt function */
daoyu_sofiane 0:a8ed743bc1e1 203 /* should not wait for a message since this would block the rtx os. */
daoyu_sofiane 0:a8ed743bc1e1 204 P_MCB p_MCB = mailbox;
daoyu_sofiane 0:a8ed743bc1e1 205
daoyu_sofiane 0:a8ed743bc1e1 206 if (p_MCB->count) {
daoyu_sofiane 0:a8ed743bc1e1 207 /* A message is available in the fifo buffer. */
daoyu_sofiane 0:a8ed743bc1e1 208 *message = p_MCB->msg[p_MCB->last];
daoyu_sofiane 0:a8ed743bc1e1 209 if (p_MCB->state == 2) {
daoyu_sofiane 0:a8ed743bc1e1 210 /* A task is locked waiting to send message */
daoyu_sofiane 0:a8ed743bc1e1 211 rt_psq_enq (p_MCB, 0);
daoyu_sofiane 0:a8ed743bc1e1 212 rt_psh_req ();
daoyu_sofiane 0:a8ed743bc1e1 213 }
daoyu_sofiane 0:a8ed743bc1e1 214 rt_dec (&p_MCB->count);
daoyu_sofiane 0:a8ed743bc1e1 215 if (++p_MCB->last == p_MCB->size) {
daoyu_sofiane 0:a8ed743bc1e1 216 p_MCB->last = 0;
daoyu_sofiane 0:a8ed743bc1e1 217 }
daoyu_sofiane 0:a8ed743bc1e1 218 return (OS_R_MBX);
daoyu_sofiane 0:a8ed743bc1e1 219 }
daoyu_sofiane 0:a8ed743bc1e1 220 return (OS_R_OK);
daoyu_sofiane 0:a8ed743bc1e1 221 }
daoyu_sofiane 0:a8ed743bc1e1 222
daoyu_sofiane 0:a8ed743bc1e1 223
daoyu_sofiane 0:a8ed743bc1e1 224 /*--------------------------- rt_mbx_psh ------------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 225
daoyu_sofiane 0:a8ed743bc1e1 226 void rt_mbx_psh (P_MCB p_CB, void *p_msg) {
daoyu_sofiane 0:a8ed743bc1e1 227 /* Store the message to the mailbox queue or pass it to task directly. */
daoyu_sofiane 0:a8ed743bc1e1 228 P_TCB p_TCB;
daoyu_sofiane 0:a8ed743bc1e1 229 void *mem;
daoyu_sofiane 0:a8ed743bc1e1 230
daoyu_sofiane 0:a8ed743bc1e1 231 if (p_CB->p_lnk != NULL) switch (p_CB->state) {
daoyu_sofiane 0:a8ed743bc1e1 232 #ifdef __CMSIS_RTOS
daoyu_sofiane 0:a8ed743bc1e1 233 case 3:
daoyu_sofiane 0:a8ed743bc1e1 234 /* Task is waiting to allocate memory, remove it from the waiting list */
daoyu_sofiane 0:a8ed743bc1e1 235 mem = rt_alloc_box(p_msg);
daoyu_sofiane 0:a8ed743bc1e1 236 if (mem == NULL) break;
daoyu_sofiane 0:a8ed743bc1e1 237 p_TCB = rt_get_first ((P_XCB)p_CB);
daoyu_sofiane 0:a8ed743bc1e1 238 rt_ret_val(p_TCB, (U32)mem);
daoyu_sofiane 0:a8ed743bc1e1 239 p_TCB->state = READY;
daoyu_sofiane 0:a8ed743bc1e1 240 rt_rmv_dly (p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 241 rt_put_prio (&os_rdy, p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 242 break;
daoyu_sofiane 0:a8ed743bc1e1 243 #endif
daoyu_sofiane 0:a8ed743bc1e1 244 case 2:
daoyu_sofiane 0:a8ed743bc1e1 245 /* Task is waiting to send a message, remove it from the waiting list */
daoyu_sofiane 0:a8ed743bc1e1 246 p_TCB = rt_get_first ((P_XCB)p_CB);
daoyu_sofiane 0:a8ed743bc1e1 247 #ifdef __CMSIS_RTOS
daoyu_sofiane 0:a8ed743bc1e1 248 rt_ret_val(p_TCB, 0/*osOK*/);
daoyu_sofiane 0:a8ed743bc1e1 249 #else
daoyu_sofiane 0:a8ed743bc1e1 250 rt_ret_val(p_TCB, OS_R_OK);
daoyu_sofiane 0:a8ed743bc1e1 251 #endif
daoyu_sofiane 0:a8ed743bc1e1 252 p_CB->msg[p_CB->first] = p_TCB->msg;
daoyu_sofiane 0:a8ed743bc1e1 253 rt_inc (&p_CB->count);
daoyu_sofiane 0:a8ed743bc1e1 254 if (++p_CB->first == p_CB->size) {
daoyu_sofiane 0:a8ed743bc1e1 255 p_CB->first = 0;
daoyu_sofiane 0:a8ed743bc1e1 256 }
daoyu_sofiane 0:a8ed743bc1e1 257 p_TCB->state = READY;
daoyu_sofiane 0:a8ed743bc1e1 258 rt_rmv_dly (p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 259 rt_put_prio (&os_rdy, p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 260 break;
daoyu_sofiane 0:a8ed743bc1e1 261 case 1:
daoyu_sofiane 0:a8ed743bc1e1 262 /* Task is waiting for a message, pass the message to the task directly */
daoyu_sofiane 0:a8ed743bc1e1 263 p_TCB = rt_get_first ((P_XCB)p_CB);
daoyu_sofiane 0:a8ed743bc1e1 264 #ifdef __CMSIS_RTOS
daoyu_sofiane 0:a8ed743bc1e1 265 rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
daoyu_sofiane 0:a8ed743bc1e1 266 #else
daoyu_sofiane 0:a8ed743bc1e1 267 *p_TCB->msg = p_msg;
daoyu_sofiane 0:a8ed743bc1e1 268 rt_ret_val (p_TCB, OS_R_MBX);
daoyu_sofiane 0:a8ed743bc1e1 269 #endif
daoyu_sofiane 0:a8ed743bc1e1 270 p_TCB->state = READY;
daoyu_sofiane 0:a8ed743bc1e1 271 rt_rmv_dly (p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 272 rt_put_prio (&os_rdy, p_TCB);
daoyu_sofiane 0:a8ed743bc1e1 273 break;
daoyu_sofiane 0:a8ed743bc1e1 274 } else {
daoyu_sofiane 0:a8ed743bc1e1 275 /* No task is waiting for a message, store it to the mailbox queue */
daoyu_sofiane 0:a8ed743bc1e1 276 if (p_CB->count < p_CB->size) {
daoyu_sofiane 0:a8ed743bc1e1 277 p_CB->msg[p_CB->first] = p_msg;
daoyu_sofiane 0:a8ed743bc1e1 278 rt_inc (&p_CB->count);
daoyu_sofiane 0:a8ed743bc1e1 279 if (++p_CB->first == p_CB->size) {
daoyu_sofiane 0:a8ed743bc1e1 280 p_CB->first = 0;
daoyu_sofiane 0:a8ed743bc1e1 281 }
daoyu_sofiane 0:a8ed743bc1e1 282 }
daoyu_sofiane 0:a8ed743bc1e1 283 else {
daoyu_sofiane 0:a8ed743bc1e1 284 os_error (OS_ERR_MBX_OVF);
daoyu_sofiane 0:a8ed743bc1e1 285 }
daoyu_sofiane 0:a8ed743bc1e1 286 }
daoyu_sofiane 0:a8ed743bc1e1 287 }
daoyu_sofiane 0:a8ed743bc1e1 288
daoyu_sofiane 0:a8ed743bc1e1 289 /*----------------------------------------------------------------------------
daoyu_sofiane 0:a8ed743bc1e1 290 * end of file
daoyu_sofiane 0:a8ed743bc1e1 291 *---------------------------------------------------------------------------*/
daoyu_sofiane 0:a8ed743bc1e1 292