📄 blockq.lst
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##############################################################################
# #
# IAR MSP430 C/C++ Compiler V3.41A/W32 22/Apr/2006 00:25:12 #
# Copyright 1996-2006 IAR Systems. All rights reserved. #
# #
# __rt_version = 2 #
# __double_size = 32 #
# __reg_r4 = free #
# __reg_r5 = free #
# __pic = no #
# __core = 64kb #
# Source file = C:\MSP430F169_Eval_Port\FreeRTOSv401\Demo\Common\Minim #
# al\BlockQ.c #
# Command line = C:\MSP430F169_Eval_Port\FreeRTOSv401\Demo\Common\Minim #
# al\BlockQ.c -D ROWLEY_MSP430 -D IAR_MSP430 -lC #
# C:\MSP430F169_Eval_Port\FreeRTOSv401\Debug\List\ -lA #
# C:\MSP430F169_Eval_Port\FreeRTOSv401\Debug\List\ #
# --remarks -o C:\MSP430F169_Eval_Port\FreeRTOSv401\Debu #
# g\Obj\ -s2 --no_cse --no_unroll --no_inline #
# --no_code_motion --no_tbaa --debug -e #
# --migration_preprocessor_extensions --double=32 -I #
# C:\MSP430F169_Eval_Port\FreeRTOSv401\Demo\Common\Inclu #
# de\ -I C:\MSP430F169_Eval_Port\FreeRTOSv401\Source\Inc #
# lude\ -I C:\MSP430F169_Eval_Port\FreeRTOSv401\Demo\MSP #
# 430_IAR\ -I C:\MSP430F169_Eval_Port\FreeRTOSv401\Sourc #
# e\portable\msp430f1611\ -I "C:\Program Files\IAR #
# Systems\Embedded Workbench 4.0\430\INC\" -I #
# "C:\Program Files\IAR Systems\Embedded Workbench #
# 4.0\430\INC\CLIB\" #
# List file = C:\MSP430F169_Eval_Port\FreeRTOSv401\Debug\List\BlockQ #
# .lst #
# Object file = C:\MSP430F169_Eval_Port\FreeRTOSv401\Debug\Obj\BlockQ. #
# r43 #
# #
# #
##############################################################################
C:\MSP430F169_Eval_Port\FreeRTOSv401\Demo\Common\Minimal\BlockQ.c
1 /*
2 FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.
3
4 This file is part of the FreeRTOS distribution.
5
6 FreeRTOS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 FreeRTOS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with FreeRTOS; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19
20 A special exception to the GPL can be applied should you wish to distribute
21 a combined work that includes FreeRTOS, without being obliged to provide
22 the source code for any proprietary components. See the licensing section
23 of http://www.FreeRTOS.org for full details of how and when the exception
24 can be applied.
25
26 ***************************************************************************
27 See http://www.FreeRTOS.org for documentation, latest information, license
28 and contact details. Please ensure to read the configuration and relevant
29 port sections of the online documentation.
30 ***************************************************************************
31 */
32
33 /*
34 * Creates six tasks that operate on three queues as follows:
35 *
36 * The first two tasks send and receive an incrementing number to/from a queue.
37 * One task acts as a producer and the other as the consumer. The consumer is a
38 * higher priority than the producer and is set to block on queue reads. The queue
39 * only has space for one item - as soon as the producer posts a message on the
40 * queue the consumer will unblock, pre-empt the producer, and remove the item.
41 *
42 * The second two tasks work the other way around. Again the queue used only has
43 * enough space for one item. This time the consumer has a lower priority than the
44 * producer. The producer will try to post on the queue blocking when the queue is
45 * full. When the consumer wakes it will remove the item from the queue, causing
46 * the producer to unblock, pre-empt the consumer, and immediately re-fill the
47 * queue.
48 *
49 * The last two tasks use the same queue producer and consumer functions. This time the queue has
50 * enough space for lots of items and the tasks operate at the same priority. The
51 * producer will execute, placing items into the queue. The consumer will start
52 * executing when either the queue becomes full (causing the producer to block) or
53 * a context switch occurs (tasks of the same priority will time slice).
54 *
55 */
56
57
58
59 #include <stdlib.h>
60
61 /* Scheduler include files. */
62 #include "FreeRTOS.h"
63 #include "task.h"
64 #include "queue.h"
65
66 /* Demo program include files. */
67 #include "BlockQ.h"
68
69 #define blckqSTACK_SIZE configMINIMAL_STACK_SIZE
70 #define blckqNUM_TASK_SETS ( 3 )
71
72 /* Structure used to pass parameters to the blocking queue tasks. */
73 typedef struct BLOCKING_QUEUE_PARAMETERS
74 {
75 xQueueHandle xQueue; /*< The queue to be used by the task. */
76 portTickType xBlockTime; /*< The block time to use on queue reads/writes. */
77 volatile portSHORT *psCheckVariable; /*< Incremented on each successful cycle to check the task is still running. */
78 } xBlockingQueueParameters;
79
80 /* Task function that creates an incrementing number and posts it on a queue. */
81 static portTASK_FUNCTION_PROTO( vBlockingQueueProducer, pvParameters );
82
83 /* Task function that removes the incrementing number from a queue and checks that
84 it is the expected number. */
85 static portTASK_FUNCTION_PROTO( vBlockingQueueConsumer, pvParameters );
86
87 /* Variables which are incremented each time an item is removed from a queue, and
88 found to be the expected value.
89 These are used to check that the tasks are still running. */
\ In segment DATA16_Z, align 2, align-sorted
\ 000000 REQUIRE ?cstart_init_zero
90 static volatile portSHORT sBlockingConsumerCount[ blckqNUM_TASK_SETS ] = { ( unsigned portSHORT ) 0, ( unsigned portSHORT ) 0, ( unsigned portSHORT ) 0 };
\ sBlockingConsumerCount:
\ 000000 DS8 6
91
92 /* Variable which are incremented each time an item is posted on a queue. These
93 are used to check that the tasks are still running. */
\ In segment DATA16_Z, align 2, align-sorted
\ 000000 REQUIRE ?cstart_init_zero
94 static volatile portSHORT sBlockingProducerCount[ blckqNUM_TASK_SETS ] = { ( unsigned portSHORT ) 0, ( unsigned portSHORT ) 0, ( unsigned portSHORT ) 0 };
\ sBlockingProducerCount:
\ 000000 DS8 6
95
96 /*-----------------------------------------------------------*/
97
\ In segment CODE, align 2
98 void vStartBlockingQueueTasks( unsigned portBASE_TYPE uxPriority )
\ vStartBlockingQueueTasks:
99 {
\ 000000 0A12 PUSH.W R10
\ 000002 0B12 PUSH.W R11
\ 000004 0812 PUSH.W R8
\ 000006 0912 PUSH.W R9
\ 000008 0612 PUSH.W R6
\ 00000A 0712 PUSH.W R7
\ 00000C 0412 PUSH.W R4
\ 00000E 0512 PUSH.W R5
\ 000010 0C12 PUSH.W R12
\ 000012 2182 SUB.W #0x4, SP
100 xBlockingQueueParameters *pxQueueParameters1, *pxQueueParameters2;
101 xBlockingQueueParameters *pxQueueParameters3, *pxQueueParameters4;
102 xBlockingQueueParameters *pxQueueParameters5, *pxQueueParameters6;
103 const unsigned portBASE_TYPE uxQueueSize1 = 1, uxQueueSize5 = 5;
\ 000014 91430000 MOV.W #0x1, 0x0(SP)
\ 000018 B14005000200 MOV.W #0x5, 0x2(SP)
104 const portTickType xBlockTime = ( portTickType ) 1000 / portTICK_RATE_MS;
\ 00001E 3440E803 MOV.W #0x3e8, R4
105 const portTickType xDontBlock = ( portTickType ) 0;
\ 000022 0543 MOV.W #0x0, R5
106
107 /* Create the first two tasks as described at the top of the file. */
108
109 /* First create the structure used to pass parameters to the consumer tasks. */
110 pxQueueParameters1 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );
\ 000024 3C400600 MOV.W #0x6, R12
\ 000028 B012.... CALL #pvPortMalloc
\ 00002C 0A4C MOV.W R12, R10
111
112 /* Create the queue used by the first two tasks to pass the incrementing number.
113 Pass a pointer to the queue in the parameter structure. */
114 pxQueueParameters1->xQueue = xQueueCreate( uxQueueSize1, ( unsigned portBASE_TYPE ) sizeof( unsigned portSHORT ) );
\ 00002E 2E43 MOV.W #0x2, R14
\ 000030 2C41 MOV.W 0x0(SP), R12
\ 000032 B012.... CALL #xQueueCreate
\ 000036 8A4C0000 MOV.W R12, 0(R10)
115
116 /* The consumer is created first so gets a block time as described above. */
117 pxQueueParameters1->xBlockTime = xBlockTime;
\ 00003A 8A440200 MOV.W R4, 0x2(R10)
118
119 /* Pass in the variable that this task is going to increment so we can check it
120 is still running. */
121 pxQueueParameters1->psCheckVariable = &( sBlockingConsumerCount[ 0 ] );
\ 00003E BA40....0400 MOV.W #sBlockingConsumerCount, 0x4(R10)
122
123 /* Create the structure used to pass parameters to the producer task. */
124 pxQueueParameters2 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );
\ 000044 3C400600 MOV.W #0x6, R12
\ 000048 B012.... CALL #pvPortMalloc
\ 00004C 0B4C MOV.W R12, R11
125
126 /* Pass the queue to this task also, using the parameter structure. */
127 pxQueueParameters2->xQueue = pxQueueParameters1->xQueue;
\ 00004E AB4A0000 MOV.W @R10, 0(R11)
128
129 /* The producer is not going to block - as soon as it posts the consumer will
130 wake and remove the item so the producer should always have room to post. */
131 pxQueueParameters2->xBlockTime = xDontBlock;
\ 000052 8B450200 MOV.W R5, 0x2(R11)
132
133 /* Pass in the variable that this task is going to increment so we can check
134 it is still running. */
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