Mike Pulice / ublox_C200Test

Integrating the ublox LISA C200 modem

Fork of SprintUSBModemHTTPClientTest by Donatien Garnier

mbed-rtos/rtx/rt_Semaphore.c@5:3f93dd1d4cb3, 2013-09-26 (annotated)

Committer:
sam_grove
Date:
Thu Sep 26 00:44:20 2013 -0500
Revision:
5:3f93dd1d4cb3
Exported program and replaced contents of the repo with the source

to build and debug using keil mdk. Libs NOT upto date are lwip, lwip-sys

and socket. these have newer versions under mbed_official but were starting

from a know working point

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sam_grove 5:3f93dd1d4cb3 1 /*----------------------------------------------------------------------------
sam_grove 5:3f93dd1d4cb3 2 * RL-ARM - RTX
sam_grove 5:3f93dd1d4cb3 3 *----------------------------------------------------------------------------
sam_grove 5:3f93dd1d4cb3 4 * Name: RT_SEMAPHORE.C
sam_grove 5:3f93dd1d4cb3 5 * Purpose: Implements binary and counting semaphores
sam_grove 5:3f93dd1d4cb3 6 * Rev.: V4.60
sam_grove 5:3f93dd1d4cb3 7 *----------------------------------------------------------------------------
sam_grove 5:3f93dd1d4cb3 8 *
sam_grove 5:3f93dd1d4cb3 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
sam_grove 5:3f93dd1d4cb3 10 * All rights reserved.
sam_grove 5:3f93dd1d4cb3 11 * Redistribution and use in source and binary forms, with or without
sam_grove 5:3f93dd1d4cb3 12 * modification, are permitted provided that the following conditions are met:
sam_grove 5:3f93dd1d4cb3 13 * - Redistributions of source code must retain the above copyright
sam_grove 5:3f93dd1d4cb3 14 * notice, this list of conditions and the following disclaimer.
sam_grove 5:3f93dd1d4cb3 15 * - Redistributions in binary form must reproduce the above copyright
sam_grove 5:3f93dd1d4cb3 16 * notice, this list of conditions and the following disclaimer in the
sam_grove 5:3f93dd1d4cb3 17 * documentation and/or other materials provided with the distribution.
sam_grove 5:3f93dd1d4cb3 18 * - Neither the name of ARM nor the names of its contributors may be used
sam_grove 5:3f93dd1d4cb3 19 * to endorse or promote products derived from this software without
sam_grove 5:3f93dd1d4cb3 20 * specific prior written permission.
sam_grove 5:3f93dd1d4cb3 21 *
sam_grove 5:3f93dd1d4cb3 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
sam_grove 5:3f93dd1d4cb3 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sam_grove 5:3f93dd1d4cb3 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sam_grove 5:3f93dd1d4cb3 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
sam_grove 5:3f93dd1d4cb3 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
sam_grove 5:3f93dd1d4cb3 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
sam_grove 5:3f93dd1d4cb3 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
sam_grove 5:3f93dd1d4cb3 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
sam_grove 5:3f93dd1d4cb3 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
sam_grove 5:3f93dd1d4cb3 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
sam_grove 5:3f93dd1d4cb3 32 * POSSIBILITY OF SUCH DAMAGE.
sam_grove 5:3f93dd1d4cb3 33 *---------------------------------------------------------------------------*/
sam_grove 5:3f93dd1d4cb3 34
sam_grove 5:3f93dd1d4cb3 35 #include "rt_TypeDef.h"
sam_grove 5:3f93dd1d4cb3 36 #include "RTX_Conf.h"
sam_grove 5:3f93dd1d4cb3 37 #include "rt_System.h"
sam_grove 5:3f93dd1d4cb3 38 #include "rt_List.h"
sam_grove 5:3f93dd1d4cb3 39 #include "rt_Task.h"
sam_grove 5:3f93dd1d4cb3 40 #include "rt_Semaphore.h"
sam_grove 5:3f93dd1d4cb3 41 #include "rt_HAL_CM.h"
sam_grove 5:3f93dd1d4cb3 42
sam_grove 5:3f93dd1d4cb3 43
sam_grove 5:3f93dd1d4cb3 44 /*----------------------------------------------------------------------------
sam_grove 5:3f93dd1d4cb3 45 * Functions
sam_grove 5:3f93dd1d4cb3 46 *---------------------------------------------------------------------------*/
sam_grove 5:3f93dd1d4cb3 47
sam_grove 5:3f93dd1d4cb3 48
sam_grove 5:3f93dd1d4cb3 49 /*--------------------------- rt_sem_init -----------------------------------*/
sam_grove 5:3f93dd1d4cb3 50
sam_grove 5:3f93dd1d4cb3 51 void rt_sem_init (OS_ID semaphore, U16 token_count) {
sam_grove 5:3f93dd1d4cb3 52 /* Initialize a semaphore */
sam_grove 5:3f93dd1d4cb3 53 P_SCB p_SCB = semaphore;
sam_grove 5:3f93dd1d4cb3 54
sam_grove 5:3f93dd1d4cb3 55 p_SCB->cb_type = SCB;
sam_grove 5:3f93dd1d4cb3 56 p_SCB->p_lnk = NULL;
sam_grove 5:3f93dd1d4cb3 57 p_SCB->tokens = token_count;
sam_grove 5:3f93dd1d4cb3 58 }
sam_grove 5:3f93dd1d4cb3 59
sam_grove 5:3f93dd1d4cb3 60
sam_grove 5:3f93dd1d4cb3 61 /*--------------------------- rt_sem_delete ---------------------------------*/
sam_grove 5:3f93dd1d4cb3 62
sam_grove 5:3f93dd1d4cb3 63 #ifdef __CMSIS_RTOS
sam_grove 5:3f93dd1d4cb3 64 OS_RESULT rt_sem_delete (OS_ID semaphore) {
sam_grove 5:3f93dd1d4cb3 65 /* Delete semaphore */
sam_grove 5:3f93dd1d4cb3 66 P_SCB p_SCB = semaphore;
sam_grove 5:3f93dd1d4cb3 67 P_TCB p_TCB;
sam_grove 5:3f93dd1d4cb3 68
sam_grove 5:3f93dd1d4cb3 69 while (p_SCB->p_lnk != NULL) {
sam_grove 5:3f93dd1d4cb3 70 /* A task is waiting for token */
sam_grove 5:3f93dd1d4cb3 71 p_TCB = rt_get_first ((P_XCB)p_SCB);
sam_grove 5:3f93dd1d4cb3 72 rt_ret_val(p_TCB, 0);
sam_grove 5:3f93dd1d4cb3 73 rt_rmv_dly(p_TCB);
sam_grove 5:3f93dd1d4cb3 74 p_TCB->state = READY;
sam_grove 5:3f93dd1d4cb3 75 rt_put_prio (&os_rdy, p_TCB);
sam_grove 5:3f93dd1d4cb3 76 }
sam_grove 5:3f93dd1d4cb3 77
sam_grove 5:3f93dd1d4cb3 78 if (os_rdy.p_lnk && (os_rdy.p_lnk->prio > os_tsk.run->prio)) {
sam_grove 5:3f93dd1d4cb3 79 /* preempt running task */
sam_grove 5:3f93dd1d4cb3 80 rt_put_prio (&os_rdy, os_tsk.run);
sam_grove 5:3f93dd1d4cb3 81 os_tsk.run->state = READY;
sam_grove 5:3f93dd1d4cb3 82 rt_dispatch (NULL);
sam_grove 5:3f93dd1d4cb3 83 }
sam_grove 5:3f93dd1d4cb3 84
sam_grove 5:3f93dd1d4cb3 85 p_SCB->cb_type = 0;
sam_grove 5:3f93dd1d4cb3 86
sam_grove 5:3f93dd1d4cb3 87 return (OS_R_OK);
sam_grove 5:3f93dd1d4cb3 88 }
sam_grove 5:3f93dd1d4cb3 89 #endif
sam_grove 5:3f93dd1d4cb3 90
sam_grove 5:3f93dd1d4cb3 91
sam_grove 5:3f93dd1d4cb3 92 /*--------------------------- rt_sem_send -----------------------------------*/
sam_grove 5:3f93dd1d4cb3 93
sam_grove 5:3f93dd1d4cb3 94 OS_RESULT rt_sem_send (OS_ID semaphore) {
sam_grove 5:3f93dd1d4cb3 95 /* Return a token to semaphore */
sam_grove 5:3f93dd1d4cb3 96 P_SCB p_SCB = semaphore;
sam_grove 5:3f93dd1d4cb3 97 P_TCB p_TCB;
sam_grove 5:3f93dd1d4cb3 98
sam_grove 5:3f93dd1d4cb3 99 if (p_SCB->p_lnk != NULL) {
sam_grove 5:3f93dd1d4cb3 100 /* A task is waiting for token */
sam_grove 5:3f93dd1d4cb3 101 p_TCB = rt_get_first ((P_XCB)p_SCB);
sam_grove 5:3f93dd1d4cb3 102 #ifdef __CMSIS_RTOS
sam_grove 5:3f93dd1d4cb3 103 rt_ret_val(p_TCB, 1);
sam_grove 5:3f93dd1d4cb3 104 #else
sam_grove 5:3f93dd1d4cb3 105 rt_ret_val(p_TCB, OS_R_SEM);
sam_grove 5:3f93dd1d4cb3 106 #endif
sam_grove 5:3f93dd1d4cb3 107 rt_rmv_dly (p_TCB);
sam_grove 5:3f93dd1d4cb3 108 rt_dispatch (p_TCB);
sam_grove 5:3f93dd1d4cb3 109 }
sam_grove 5:3f93dd1d4cb3 110 else {
sam_grove 5:3f93dd1d4cb3 111 /* Store token. */
sam_grove 5:3f93dd1d4cb3 112 p_SCB->tokens++;
sam_grove 5:3f93dd1d4cb3 113 }
sam_grove 5:3f93dd1d4cb3 114 return (OS_R_OK);
sam_grove 5:3f93dd1d4cb3 115 }
sam_grove 5:3f93dd1d4cb3 116
sam_grove 5:3f93dd1d4cb3 117
sam_grove 5:3f93dd1d4cb3 118 /*--------------------------- rt_sem_wait -----------------------------------*/
sam_grove 5:3f93dd1d4cb3 119
sam_grove 5:3f93dd1d4cb3 120 OS_RESULT rt_sem_wait (OS_ID semaphore, U16 timeout) {
sam_grove 5:3f93dd1d4cb3 121 /* Obtain a token; possibly wait for it */
sam_grove 5:3f93dd1d4cb3 122 P_SCB p_SCB = semaphore;
sam_grove 5:3f93dd1d4cb3 123
sam_grove 5:3f93dd1d4cb3 124 if (p_SCB->tokens) {
sam_grove 5:3f93dd1d4cb3 125 p_SCB->tokens--;
sam_grove 5:3f93dd1d4cb3 126 return (OS_R_OK);
sam_grove 5:3f93dd1d4cb3 127 }
sam_grove 5:3f93dd1d4cb3 128 /* No token available: wait for one */
sam_grove 5:3f93dd1d4cb3 129 if (timeout == 0) {
sam_grove 5:3f93dd1d4cb3 130 return (OS_R_TMO);
sam_grove 5:3f93dd1d4cb3 131 }
sam_grove 5:3f93dd1d4cb3 132 if (p_SCB->p_lnk != NULL) {
sam_grove 5:3f93dd1d4cb3 133 rt_put_prio ((P_XCB)p_SCB, os_tsk.run);
sam_grove 5:3f93dd1d4cb3 134 }
sam_grove 5:3f93dd1d4cb3 135 else {
sam_grove 5:3f93dd1d4cb3 136 p_SCB->p_lnk = os_tsk.run;
sam_grove 5:3f93dd1d4cb3 137 os_tsk.run->p_lnk = NULL;
sam_grove 5:3f93dd1d4cb3 138 os_tsk.run->p_rlnk = (P_TCB)p_SCB;
sam_grove 5:3f93dd1d4cb3 139 }
sam_grove 5:3f93dd1d4cb3 140 rt_block(timeout, WAIT_SEM);
sam_grove 5:3f93dd1d4cb3 141 return (OS_R_TMO);
sam_grove 5:3f93dd1d4cb3 142 }
sam_grove 5:3f93dd1d4cb3 143
sam_grove 5:3f93dd1d4cb3 144
sam_grove 5:3f93dd1d4cb3 145 /*--------------------------- isr_sem_send ----------------------------------*/
sam_grove 5:3f93dd1d4cb3 146
sam_grove 5:3f93dd1d4cb3 147 void isr_sem_send (OS_ID semaphore) {
sam_grove 5:3f93dd1d4cb3 148 /* Same function as "os_sem"send", but to be called by ISRs */
sam_grove 5:3f93dd1d4cb3 149 P_SCB p_SCB = semaphore;
sam_grove 5:3f93dd1d4cb3 150
sam_grove 5:3f93dd1d4cb3 151 rt_psq_enq (p_SCB, 0);
sam_grove 5:3f93dd1d4cb3 152 rt_psh_req ();
sam_grove 5:3f93dd1d4cb3 153 }
sam_grove 5:3f93dd1d4cb3 154
sam_grove 5:3f93dd1d4cb3 155
sam_grove 5:3f93dd1d4cb3 156 /*--------------------------- rt_sem_psh ------------------------------------*/
sam_grove 5:3f93dd1d4cb3 157
sam_grove 5:3f93dd1d4cb3 158 void rt_sem_psh (P_SCB p_CB) {
sam_grove 5:3f93dd1d4cb3 159 /* Check if task has to be waken up */
sam_grove 5:3f93dd1d4cb3 160 P_TCB p_TCB;
sam_grove 5:3f93dd1d4cb3 161
sam_grove 5:3f93dd1d4cb3 162 if (p_CB->p_lnk != NULL) {
sam_grove 5:3f93dd1d4cb3 163 /* A task is waiting for token */
sam_grove 5:3f93dd1d4cb3 164 p_TCB = rt_get_first ((P_XCB)p_CB);
sam_grove 5:3f93dd1d4cb3 165 rt_rmv_dly (p_TCB);
sam_grove 5:3f93dd1d4cb3 166 p_TCB->state = READY;
sam_grove 5:3f93dd1d4cb3 167 #ifdef __CMSIS_RTOS
sam_grove 5:3f93dd1d4cb3 168 rt_ret_val(p_TCB, 1);
sam_grove 5:3f93dd1d4cb3 169 #else
sam_grove 5:3f93dd1d4cb3 170 rt_ret_val(p_TCB, OS_R_SEM);
sam_grove 5:3f93dd1d4cb3 171 #endif
sam_grove 5:3f93dd1d4cb3 172 rt_put_prio (&os_rdy, p_TCB);
sam_grove 5:3f93dd1d4cb3 173 }
sam_grove 5:3f93dd1d4cb3 174 else {
sam_grove 5:3f93dd1d4cb3 175 /* Store token */
sam_grove 5:3f93dd1d4cb3 176 p_CB->tokens++;
sam_grove 5:3f93dd1d4cb3 177 }
sam_grove 5:3f93dd1d4cb3 178 }
sam_grove 5:3f93dd1d4cb3 179
sam_grove 5:3f93dd1d4cb3 180 /*----------------------------------------------------------------------------
sam_grove 5:3f93dd1d4cb3 181 * end of file
sam_grove 5:3f93dd1d4cb3 182 *---------------------------------------------------------------------------*/
sam_grove 5:3f93dd1d4cb3 183