2 FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
\r
5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
\r
7 This file is part of the FreeRTOS distribution.
\r
9 FreeRTOS is free software; you can redistribute it and/or modify it under
\r
10 the terms of the GNU General Public License (version 2) as published by the
\r
11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
\r
13 ***************************************************************************
\r
14 >>! NOTE: The modification to the GPL is included to allow you to !<<
\r
15 >>! distribute a combined work that includes FreeRTOS without being !<<
\r
16 >>! obliged to provide the source code for proprietary components !<<
\r
17 >>! outside of the FreeRTOS kernel. !<<
\r
18 ***************************************************************************
\r
20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
\r
21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
\r
22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
\r
23 link: http://www.freertos.org/a00114.html
\r
25 ***************************************************************************
\r
27 * FreeRTOS provides completely free yet professionally developed, *
\r
28 * robust, strictly quality controlled, supported, and cross *
\r
29 * platform software that is more than just the market leader, it *
\r
30 * is the industry's de facto standard. *
\r
32 * Help yourself get started quickly while simultaneously helping *
\r
33 * to support the FreeRTOS project by purchasing a FreeRTOS *
\r
34 * tutorial book, reference manual, or both: *
\r
35 * http://www.FreeRTOS.org/Documentation *
\r
37 ***************************************************************************
\r
39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
\r
40 the FAQ page "My application does not run, what could be wrong?". Have you
\r
41 defined configASSERT()?
\r
43 http://www.FreeRTOS.org/support - In return for receiving this top quality
\r
44 embedded software for free we request you assist our global community by
\r
45 participating in the support forum.
\r
47 http://www.FreeRTOS.org/training - Investing in training allows your team to
\r
48 be as productive as possible as early as possible. Now you can receive
\r
49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
\r
50 Ltd, and the world's leading authority on the world's leading RTOS.
\r
52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
\r
53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
\r
54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
\r
56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
\r
57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
\r
59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
\r
60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
\r
61 licenses offer ticketed support, indemnification and commercial middleware.
\r
63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
\r
64 engineered and independently SIL3 certified version for use in safety and
\r
65 mission critical applications that require provable dependability.
\r
71 * Provides the port specific part of the standard IntQ test, which is
\r
72 * implemented in FreeRTOS/Demo/Common/Minimal/IntQueue.c. Three HPET timers
\r
73 * are used to generate the interrupts. The timers are configured in
\r
74 * prvSetupHardware(), in main.c.
\r
78 /* Scheduler includes. */
\r
79 #include "FreeRTOS.h"
\r
81 /* Demo includes. */
\r
82 #include "IntQueueTimer.h"
\r
83 #include "IntQueue.h"
\r
86 * Prototypes of the callback functions which are called from the HPET timer
\r
87 * support file. For demonstration purposes, timer 0 and timer 1 are standard
\r
88 * C functions that use the central interrupt handler, and are installed using
\r
89 * xPortRegisterCInterruptHandler() - and timer 2 uses its own interrupt entry
\r
90 * asm wrapper code and is installed using xPortInstallInterruptHandler(). For
\r
91 * convenience the asm wrapper which calls vApplicationHPETTimer1Handler(), is
\r
92 * implemented in RegTest.S. See
\r
93 * http://www.freertos.org/RTOS_Intel_Quark_Galileo_GCC.html#interrupts for more
\r
96 void vApplicationHPETTimer0Handler( void );
\r
97 void vApplicationHPETTimer1Handler( void );
\r
98 void vApplicationHPETTimer2Handler( void );
\r
101 * Set to pdTRUE when vInitialiseTimerForIntQueueTest() is called so the timer
\r
102 * callback functions know the scheduler is running and the tests can run.
\r
104 static volatile BaseType_t xSchedulerRunning = pdFALSE;
\r
106 /* Used to count the nesting depth to ensure the test is testing what it is
\r
107 intended to test. */
\r
108 static volatile uint32_t ulMaxInterruptNesting = 0;
\r
109 extern volatile uint32_t ulInterruptNesting;
\r
111 /*-----------------------------------------------------------*/
\r
113 void vInitialiseTimerForIntQueueTest( void )
\r
115 /* The HPET timers are set up in main(), before the scheduler is started,
\r
116 so there is nothing to do here other than note the scheduler is now running.
\r
117 This could be done by calling a FreeRTOS API function, but its convenient
\r
118 and efficient just to store the fact in a file scope variable. */
\r
119 xSchedulerRunning = pdTRUE;
\r
121 /*-----------------------------------------------------------*/
\r
123 void vApplicationHPETTimer0Handler( void )
\r
125 BaseType_t xHigherPriorityTaskWoken;
\r
127 if( xSchedulerRunning != pdFALSE )
\r
129 if( ulInterruptNesting > ulMaxInterruptNesting )
\r
131 ulMaxInterruptNesting = ulInterruptNesting;
\r
134 xHigherPriorityTaskWoken = xFirstTimerHandler();
\r
135 portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
\r
138 /*-----------------------------------------------------------*/
\r
140 void vApplicationHPETTimer1Handler( void )
\r
142 BaseType_t xHigherPriorityTaskWoken;
\r
144 if( xSchedulerRunning != pdFALSE )
\r
146 if( ulInterruptNesting > ulMaxInterruptNesting )
\r
148 ulMaxInterruptNesting = ulInterruptNesting;
\r
151 xHigherPriorityTaskWoken = xSecondTimerHandler();
\r
152 portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
\r
155 /*-----------------------------------------------------------*/
\r
157 void vApplicationHPETTimer2Handler( void )
\r
159 if( ulInterruptNesting > ulMaxInterruptNesting )
\r
161 ulMaxInterruptNesting = ulInterruptNesting;
\r