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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [drivers/] [Atmel/] [at91lib/] [utility/] [led.c] - Blame information for rev 609

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/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ----------------------------------------------------------------------------
 */
 
/*
    Title: LED implementation
 
    About: Purpose
        Implementation of LED-related functionalities.
*/
 
//------------------------------------------------------------------------------
//         Headers
//------------------------------------------------------------------------------
 
#include "led.h"
#include <board.h>
#include <pio/pio.h>
 
//------------------------------------------------------------------------------
//         Internal variables
//------------------------------------------------------------------------------
 
#ifdef PINS_LEDS
static const Pin pinsLeds[] = {PINS_LEDS};
static const unsigned int numLeds = PIO_LISTSIZE(pinsLeds);
#endif
 
//------------------------------------------------------------------------------
//         Exported functions
//------------------------------------------------------------------------------
/*
    Function: LED_Configure
        Configures the pin associated with the given LED number.
 
    Parameters:
        led - Number of the LED to configure.
 
    Returns:
        1 if the LED exists and has been configured; otherwise 0.
*/
unsigned char LED_Configure(unsigned int led)
{
#ifdef PINS_LEDS
    // Check that LED exists
    if (led >= numLeds) {
 
        return 0;
    }
 
    // Configure LED
    return (PIO_Configure(&pinsLeds[led], 1));
#else
    return 0;
#endif
}
 
/*
    Function: LED_Set
        Turns a LED on.
 
    Parameters:
        led - Number of the LED to turn on.
 
    Returns:
        1 if the LED has been turned on; 0 otherwise.
*/
unsigned char LED_Set(unsigned int led)
{
#ifdef PINS_LEDS
    // Check if LED exists
    if (led >= numLeds) {
 
        return 0;
    }
 
    // Turn LED on
    if (pinsLeds[led].type == PIO_OUTPUT_0) {
 
        PIO_Set(&pinsLeds[led]);
    }
    else {
 
        PIO_Clear(&pinsLeds[led]);
    }
 
    return 1;
#else
    return 0;
#endif
}
 
/*
    Function: LED_Clear
        Turns a LED off.
 
    Parameters:
        led - Number of the LED to turn off.
 
    Returns:
        1 if the LED has been turned off; 0 otherwise.
*/
unsigned char LED_Clear(unsigned int led)
{
#ifdef PINS_LEDS
    // Check if LED exists
    if (led >= numLeds) {
 
        return 0;
    }
 
    // Turn LED off
    if (pinsLeds[led].type == PIO_OUTPUT_0) {
 
        PIO_Clear(&pinsLeds[led]);
    }
    else {
 
        PIO_Set(&pinsLeds[led]);
    }
 
    return 1;
#else
    return 0;
#endif
}
 
/*
    Function: LED_Toggle
        Toggles the current state of a LED.
 
    Parameters:
        led - Number of the LED to toggle.
 
    Returns:
        1 if the LED has been toggled; otherwise 0.
*/
unsigned char LED_Toggle(unsigned int led)
{
#ifdef PINS_LEDS
    // Check if LED exists
    if (led >= numLeds) {
 
        return 0;
    }
 
    // Toggle LED
    if (PIO_GetOutputDataStatus(&pinsLeds[led])) {
 
        PIO_Clear(&pinsLeds[led]);
    }
    else {
 
        PIO_Set(&pinsLeds[led]);
    }
 
    return 1;
#else
    return 0;
#endif
}
 

Line No.	Rev	Author	Line
1	608	jeremybenn	`/* ----------------------------------------------------------------------------`
2			`* ATMEL Microcontroller Software Support`
3			`* ----------------------------------------------------------------------------`
4			`* Copyright (c) 2008, Atmel Corporation`
5			`*`
6			`* All rights reserved.`
7			`*`
8			`* Redistribution and use in source and binary forms, with or without`
9			`* modification, are permitted provided that the following conditions are met:`
10			`*`
11			`* - Redistributions of source code must retain the above copyright notice,`
12			`* this list of conditions and the disclaimer below.`
13			`*`
14			`* Atmel's name may not be used to endorse or promote products derived from`
15			`* this software without specific prior written permission.`
16			`*`
17			`* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR`
18			`* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF`
19			`* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE`
20			`* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,`
21			`* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT`
22			`* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,`
23			`* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF`
24			`* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING`
25			`* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,`
26			`* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.`
27			`* ----------------------------------------------------------------------------`
28			`*/`
29
30			`/*`
31			`Title: LED implementation`
32
33			`About: Purpose`
34			`Implementation of LED-related functionalities.`
35			`*/`
36
37			`//------------------------------------------------------------------------------`
38			`// Headers`
39			`//------------------------------------------------------------------------------`
40
41			`#include "led.h"`
42			`#include <board.h>`
43			`#include <pio/pio.h>`
44
45			`//------------------------------------------------------------------------------`
46			`// Internal variables`
47			`//------------------------------------------------------------------------------`
48
49			`#ifdef PINS_LEDS`
50			`static const Pin pinsLeds[] = {PINS_LEDS};`
51			`static const unsigned int numLeds = PIO_LISTSIZE(pinsLeds);`
52			`#endif`
53
54			`//------------------------------------------------------------------------------`
55			`// Exported functions`
56			`//------------------------------------------------------------------------------`
57			`/*`
58			`Function: LED_Configure`
59			`Configures the pin associated with the given LED number.`
60
61			`Parameters:`
62			`led - Number of the LED to configure.`
63
64			`Returns:`
65			`1 if the LED exists and has been configured; otherwise 0.`
66			`*/`
67			`unsigned char LED_Configure(unsigned int led)`
68			`{`
69			`#ifdef PINS_LEDS`
70			`// Check that LED exists`
71			`if (led >= numLeds) {`
72
73			`return 0;`
74			`}`
75
76			`// Configure LED`
77			`return (PIO_Configure(&pinsLeds[led], 1));`
78			`#else`
79			`return 0;`
80			`#endif`
81			`}`
82
83			`/*`
84			`Function: LED_Set`
85			`Turns a LED on.`
86
87			`Parameters:`
88			`led - Number of the LED to turn on.`
89
90			`Returns:`
91			`1 if the LED has been turned on; 0 otherwise.`
92			`*/`
93			`unsigned char LED_Set(unsigned int led)`
94			`{`
95			`#ifdef PINS_LEDS`
96			`// Check if LED exists`
97			`if (led >= numLeds) {`
98
99			`return 0;`
100			`}`
101
102			`// Turn LED on`
103			`if (pinsLeds[led].type == PIO_OUTPUT_0) {`
104
105			`PIO_Set(&pinsLeds[led]);`
106			`}`
107			`else {`
108
109			`PIO_Clear(&pinsLeds[led]);`
110			`}`
111
112			`return 1;`
113			`#else`
114			`return 0;`
115			`#endif`
116			`}`
117
118			`/*`
119			`Function: LED_Clear`
120			`Turns a LED off.`
121
122			`Parameters:`
123			`led - Number of the LED to turn off.`
124
125			`Returns:`
126			`1 if the LED has been turned off; 0 otherwise.`
127			`*/`
128			`unsigned char LED_Clear(unsigned int led)`
129			`{`
130			`#ifdef PINS_LEDS`
131			`// Check if LED exists`
132			`if (led >= numLeds) {`
133
134			`return 0;`
135			`}`
136
137			`// Turn LED off`
138			`if (pinsLeds[led].type == PIO_OUTPUT_0) {`
139
140			`PIO_Clear(&pinsLeds[led]);`
141			`}`
142			`else {`
143
144			`PIO_Set(&pinsLeds[led]);`
145			`}`
146
147			`return 1;`
148			`#else`
149			`return 0;`
150			`#endif`
151			`}`
152
153			`/*`
154			`Function: LED_Toggle`
155			`Toggles the current state of a LED.`
156
157			`Parameters:`
158			`led - Number of the LED to toggle.`
159
160			`Returns:`
161			`1 if the LED has been toggled; otherwise 0.`
162			`*/`
163			`unsigned char LED_Toggle(unsigned int led)`
164			`{`
165			`#ifdef PINS_LEDS`
166			`// Check if LED exists`
167			`if (led >= numLeds) {`
168
169			`return 0;`
170			`}`
171
172			`// Toggle LED`
173			`if (PIO_GetOutputDataStatus(&pinsLeds[led])) {`
174
175			`PIO_Clear(&pinsLeds[led]);`
176			`}`
177			`else {`
178
179			`PIO_Set(&pinsLeds[led]);`
180			`}`
181
182			`return 1;`
183			`#else`
184			`return 0;`
185			`#endif`
186			`}`
187

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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [drivers/] [Atmel/] [at91lib/] [utility/] [led.c] - Blame information for rev 609