2 * FreeRTOS Kernel V10.1.0
\r
3 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
\r
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
\r
6 * this software and associated documentation files (the "Software"), to deal in
\r
7 * the Software without restriction, including without limitation the rights to
\r
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
\r
9 * the Software, and to permit persons to whom the Software is furnished to do so,
\r
10 * subject to the following conditions:
\r
12 * The above copyright notice and this permission notice shall be included in all
\r
13 * copies or substantial portions of the Software.
\r
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
\r
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
\r
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
\r
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
\r
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
\r
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\r
22 * http://www.FreeRTOS.org
\r
23 * http://aws.amazon.com/freertos
\r
25 * 1 tab == 4 spaces!
\r
29 /*-----------------------------------------------------------
\r
30 * Simple IO routines to control the LEDs.
\r
31 *-----------------------------------------------------------*/
\r
33 /* Scheduler includes. */
\r
34 #include "FreeRTOS.h"
\r
37 /* Demo includes. */
\r
38 #include "partest.h"
\r
40 /* Xilinx includes. */
\r
44 #define partstNUM_LEDS 8
\r
46 /*-----------------------------------------------------------*/
\r
48 /* The GPIO instance to which the LEDs are connected. */
\r
49 static XGpio xOutputGPIOInstance;
\r
51 /* Maintains the current LED output state. */
\r
52 static volatile UBaseType_t uxGPIOState = 0U;
\r
54 /* Constant required by the Xilinx peripheral driver API functions that are
\r
55 relevant to the particular hardware set up. */
\r
56 static const unsigned long ulGPIOOutputChannel = 1UL;
\r
58 /*-----------------------------------------------------------*/
\r
60 void vParTestInitialise( void )
\r
62 portBASE_TYPE xStatus;
\r
63 const unsigned char ucSetToOutput = 0U;
\r
65 /* Initialize the GPIO for the LEDs. */
\r
66 xStatus = XGpio_Initialize( &xOutputGPIOInstance, XPAR_AXI_GPIO_0_DEVICE_ID );
\r
67 if( xStatus == XST_SUCCESS )
\r
69 /* All bits on this channel are going to be outputs (LEDs). */
\r
70 XGpio_SetDataDirection( &xOutputGPIOInstance, ulGPIOOutputChannel, ucSetToOutput );
\r
72 /* Start with all LEDs off. */
\r
74 XGpio_DiscreteWrite( &xOutputGPIOInstance, ulGPIOOutputChannel, ( uint8_t ) uxGPIOState );
\r
77 configASSERT( ( xStatus == XST_SUCCESS ) );
\r
79 /*-----------------------------------------------------------*/
\r
81 void vParTestSetLED( UBaseType_t uxLED, BaseType_t xValue )
\r
83 if( uxLED < partstNUM_LEDS )
\r
85 taskENTER_CRITICAL();
\r
87 if( xValue != pdFALSE )
\r
89 uxGPIOState |= ( 1UL << uxLED );
\r
93 uxGPIOState &= ~( 1UL << uxLED );
\r
96 XGpio_DiscreteWrite( &xOutputGPIOInstance, ulGPIOOutputChannel, ( uint8_t ) uxGPIOState );
\r
98 taskEXIT_CRITICAL();
\r
101 /*-----------------------------------------------------------*/
\r
103 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
\r
105 if( uxLED < partstNUM_LEDS )
\r
107 taskENTER_CRITICAL();
\r
109 uxGPIOState ^= ( 1UL << uxLED );
\r
110 XGpio_DiscreteWrite( &xOutputGPIOInstance, ulGPIOOutputChannel, ( uint8_t ) uxGPIOState );
\r
112 taskEXIT_CRITICAL();
\r