portmacro.h

Revision 14, 5.3 kB (checked in by phil, 15 years ago)
added unmodified FreeRTOS package V5.4.1 with only web srv demo source for LPC2368 for CrossWorks?

Line
1	/*
2	FreeRTOS V5.4.1 - Copyright (C) 2009 Real Time Engineers Ltd.
3
4	This file is part of the FreeRTOS distribution.
5
6	FreeRTOS is free software; you can redistribute it and/or modify it under
7	the terms of the GNU General Public License (version 2) as published by the
8	Free Software Foundation and modified by the FreeRTOS exception.
9	NOTE The exception to the GPL is included to allow you to distribute a
10	combined work that includes FreeRTOS without being obliged to provide the
11	source code for proprietary components outside of the FreeRTOS kernel.
12	Alternative commercial license and support terms are also available upon
13	request. See the licensing section of http://www.FreeRTOS.org for full
14	license details.
15
16	FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
17	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19	more details.
20
21	You should have received a copy of the GNU General Public License along
22	with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
23	Temple Place, Suite 330, Boston, MA 02111-1307 USA.
24
25
26	***************************************************************************
27	* *
28	* Looking for a quick start? Then check out the FreeRTOS eBook! *
29	* See http://www.FreeRTOS.org/Documentation for details *
30	* *
31	***************************************************************************
32
33	1 tab == 4 spaces!
34
35	Please ensure to read the configuration and relevant port sections of the
36	online documentation.
37
38	http://www.FreeRTOS.org - Documentation, latest information, license and
39	contact details.
40
41	http://www.SafeRTOS.com - A version that is certified for use in safety
42	critical systems.
43
44	http://www.OpenRTOS.com - Commercial support, development, porting,
45	licensing and training services.
46	*/
47
48	#ifndef PORTMACRO_H
49	#define PORTMACRO_H
50
51	/*-----------------------------------------------------------
52	* Port specific definitions.
53	*
54	* The settings in this file configure FreeRTOS correctly for the
55	* given hardware and compiler.
56	*
57	* These settings should not be altered.
58	*-----------------------------------------------------------
59	*/
60
61	/* Type definitions. */
62	#define portCHAR char
63	#define portFLOAT float
64	#define portDOUBLE double
65	#define portLONG long
66	#define portSHORT int
67	#define portSTACK_TYPE unsigned portSHORT
68	#define portBASE_TYPE portSHORT
69
70	#if( configUSE_16_BIT_TICKS == 1 )
71	typedef unsigned portSHORT portTickType;
72	#define portMAX_DELAY ( portTickType ) 0xffff
73	#else
74	typedef unsigned portLONG portTickType;
75	#define portMAX_DELAY ( portTickType ) 0xffffffff
76	#endif
77
78	/-----------------------------------------------------------/
79
80	/* Interrupt control macros. */
81	#define portDISABLE_INTERRUPTS() _DINT();
82	#define portENABLE_INTERRUPTS() _EINT();
83	/-----------------------------------------------------------/
84
85	/* Critical section control macros. */
86	#define portNO_CRITICAL_SECTION_NESTING ( ( unsigned portSHORT ) 0 )
87
88	#define portENTER_CRITICAL() \
89	{ \
90	extern volatile unsigned portSHORT usCriticalNesting; \
91	\
92	portDISABLE_INTERRUPTS(); \
93	\
94	/* Now interrupts are disabled usCriticalNesting can be accessed */ \
95	/* directly. Increment ulCriticalNesting to keep a count of how many */ \
96	/* times portENTER_CRITICAL() has been called. */ \
97	usCriticalNesting++; \
98	}
99
100	#define portEXIT_CRITICAL() \
101	{ \
102	extern volatile unsigned portSHORT usCriticalNesting; \
103	\
104	if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
105	{ \
106	/* Decrement the nesting count as we are leaving a critical section. */ \
107	usCriticalNesting--; \
108	\
109	/* If the nesting level has reached zero then interrupts should be */ \
110	/* re-enabled. */ \
111	if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
112	{ \
113	portENABLE_INTERRUPTS(); \
114	} \
115	} \
116	}
117	/-----------------------------------------------------------/
118
119	/* Task utilities. */
120
121	/*
122	* Manual context switch called by portYIELD or taskYIELD.
123	*/
124	extern void vPortYield( void );
125	#define portYIELD() vPortYield()
126	/-----------------------------------------------------------/
127
128	/* Hardware specifics. */
129	#define portBYTE_ALIGNMENT 2
130	#define portSTACK_GROWTH ( -1 )
131	#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
132	#define portNOP()
133	/-----------------------------------------------------------/
134
135	/* Task function macros as described on the FreeRTOS.org WEB site. */
136	#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
137	#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters ) __toplevel
138
139	#if configINTERRUPT_EXAMPLE_METHOD == 2
140
141	extern void vTaskSwitchContext( void );
142	#define portYIELD_FROM_ISR( x ) if( x ) vTaskSwitchContext()
143
144	#endif
145
146	#endif /* PORTMACRO_H */
147

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