OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [MicroBlaze/] [ParTest/] [ParTest.c] - Blame information for rev 609

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 584 jeremybenn
/*
2
    FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
3
 
4
    ***************************************************************************
5
    *                                                                         *
6
    * If you are:                                                             *
7
    *                                                                         *
8
    *    + New to FreeRTOS,                                                   *
9
    *    + Wanting to learn FreeRTOS or multitasking in general quickly       *
10
    *    + Looking for basic training,                                        *
11
    *    + Wanting to improve your FreeRTOS skills and productivity           *
12
    *                                                                         *
13
    * then take a look at the FreeRTOS books - available as PDF or paperback  *
14
    *                                                                         *
15
    *        "Using the FreeRTOS Real Time Kernel - a Practical Guide"        *
16
    *                  http://www.FreeRTOS.org/Documentation                  *
17
    *                                                                         *
18
    * A pdf reference manual is also available.  Both are usually delivered   *
19
    * to your inbox within 20 minutes to two hours when purchased between 8am *
20
    * and 8pm GMT (although please allow up to 24 hours in case of            *
21
    * exceptional circumstances).  Thank you for your support!                *
22
    *                                                                         *
23
    ***************************************************************************
24
 
25
    This file is part of the FreeRTOS distribution.
26
 
27
    FreeRTOS is free software; you can redistribute it and/or modify it under
28
    the terms of the GNU General Public License (version 2) as published by the
29
    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
30
    ***NOTE*** The exception to the GPL is included to allow you to distribute
31
    a combined work that includes FreeRTOS without being obliged to provide the
32
    source code for proprietary components outside of the FreeRTOS kernel.
33
    FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
34
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
35
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
36
    more details. You should have received a copy of the GNU General Public
37
    License and the FreeRTOS license exception along with FreeRTOS; if not it
38
    can be viewed here: http://www.freertos.org/a00114.html and also obtained
39
    by writing to Richard Barry, contact details for whom are available on the
40
    FreeRTOS WEB site.
41
 
42
    1 tab == 4 spaces!
43
 
44
    http://www.FreeRTOS.org - Documentation, latest information, license and
45
    contact details.
46
 
47
    http://www.SafeRTOS.com - A version that is certified for use in safety
48
    critical systems.
49
 
50
    http://www.OpenRTOS.com - Commercial support, development, porting,
51
    licensing and training services.
52
*/
53
 
54
/*-----------------------------------------------------------
55
 * Simple parallel port IO routines.
56
 *-----------------------------------------------------------*/
57
 
58
/* Kernel includes. */
59
#include "FreeRTOS.h"
60
 
61
/* Demo application includes. */
62
#include "partest.h"
63
 
64
/* Library includes. */
65
#include "xgpio_l.h"
66
 
67
/* Misc hardware specific definitions. */
68
#define partstALL_AS_OUTPUT     0x00
69
#define partstCHANNEL_1         0x01
70
#define partstMAX_4BIT_LED      0x03
71
 
72
/* The outputs are split into two IO sections, these variables maintain the
73
current value of either section. */
74
static unsigned portBASE_TYPE uxCurrentOutput4Bit, uxCurrentOutput5Bit;
75
 
76
/*-----------------------------------------------------------*/
77
/*
78
 * Setup the IO for the LED outputs.
79
 */
80
void vParTestInitialise( void )
81
{
82
        /* Set both sets of LED's on the demo board to outputs. */
83
        XGpio_mSetDataDirection( XPAR_LEDS_4BIT_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );
84
        XGpio_mSetDataDirection( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );
85
 
86
        /* Start with all outputs off. */
87
        uxCurrentOutput4Bit = 0;
88
        XGpio_mSetDataReg( XPAR_LEDS_4BIT_BASEADDR, partstCHANNEL_1, 0x00 );
89
        uxCurrentOutput5Bit = 0;
90
        XGpio_mSetDataReg( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, 0x00 );
91
}
92
/*-----------------------------------------------------------*/
93
 
94
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
95
{
96
unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;
97
 
98
        portENTER_CRITICAL();
99
        {
100
                /* Which IO section does the LED being set/cleared belong to?  The
101
                4 bit or 5 bit outputs? */
102
                if( uxLED <= partstMAX_4BIT_LED )
103
                {
104
                        uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR;
105
                        puxCurrentValue = &uxCurrentOutput4Bit;
106
                }
107
                else
108
                {
109
                        uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;
110
                        puxCurrentValue = &uxCurrentOutput5Bit;
111
                        uxLED -= partstMAX_4BIT_LED;
112
                }
113
 
114
                /* Setup the bit mask accordingly. */
115
                uxLED = 0x01 << uxLED;
116
 
117
                /* Maintain the current output value. */
118
                if( xValue )
119
                {
120
                        *puxCurrentValue |= uxLED;
121
                }
122
                else
123
                {
124
                        *puxCurrentValue &= ~uxLED;
125
                }
126
 
127
                /* Write the value to the port. */
128
                XGpio_mSetDataReg( uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );
129
        }
130
        portEXIT_CRITICAL();
131
}
132
/*-----------------------------------------------------------*/
133
 
134
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
135
{
136
unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;
137
 
138
        portENTER_CRITICAL();
139
        {
140
                /* Which IO section does the LED being toggled belong to?  The
141
                4 bit or 5 bit outputs? */
142
                if( uxLED <= partstMAX_4BIT_LED )
143
                {
144
                        uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR;
145
                        puxCurrentValue = &uxCurrentOutput4Bit;
146
                }
147
                else
148
                {
149
                        uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;
150
                        puxCurrentValue = &uxCurrentOutput5Bit;
151
                        uxLED -= partstMAX_4BIT_LED;
152
                }
153
 
154
                /* Setup the bit mask accordingly. */
155
                uxLED = 0x01 << uxLED;
156
 
157
                /* Maintain the current output value. */
158
                if( *puxCurrentValue & uxLED )
159
                {
160
                        *puxCurrentValue &= ~uxLED;
161
                }
162
                else
163
                {
164
                        *puxCurrentValue |= uxLED;
165
                }
166
 
167
                /* Write the value to the port. */
168
                XGpio_mSetDataReg(uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );
169
        }
170
        portEXIT_CRITICAL();
171
}
172
 
173
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.