]> git.sur5r.net Git - freertos/blob - Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoSource/ParTest.c
Add LED output to the new MicroBlaze blinky demo - still a work in progress.
[freertos] / Demo / MicroBlaze_Spartan-6_EthernetLite / SDKProjects / RTOSDemoSource / ParTest.c
1 /*\r
2     FreeRTOS V7.0.1 - Copyright (C) 2011 Real Time Engineers Ltd.\r
3         \r
4 \r
5     ***************************************************************************\r
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23 \r
24 \r
25     This file is part of the FreeRTOS distribution.\r
26 \r
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28     the terms of the GNU General Public License (version 2) as published by the\r
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42     1 tab == 4 spaces!\r
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44     http://www.FreeRTOS.org - Documentation, latest information, license and\r
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49 \r
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52 */\r
53 \r
54 /*-----------------------------------------------------------\r
55  * Simple parallel port IO routines.\r
56  *-----------------------------------------------------------*/\r
57 \r
58 /* Kernel includes. */\r
59 #include "FreeRTOS.h"\r
60 \r
61 /* Demo application includes. */\r
62 #include "partest.h"\r
63 \r
64 /* Library includes. */\r
65 #include "xgpio.h"\r
66 \r
67 /*-----------------------------------------------------------*/\r
68 \r
69 static XGpio xOutputGPIOInstance;\r
70 static const unsigned portBASE_TYPE uxGPIOOutputChannel = 1UL;\r
71 static ucCurrentLEDState = 0U;\r
72 \r
73 /*\r
74  * Setup the IO for the LED outputs.\r
75  */\r
76 void vParTestInitialise( void )\r
77 {\r
78 portBASE_TYPE xStatus;\r
79 const unsigned char ucSetToOutput = 0U;\r
80 \r
81         /* Initialize the GPIO. */\r
82         xStatus = XGpio_Initialize( &xOutputGPIOInstance, XPAR_LEDS_4BITS_DEVICE_ID );  \r
83         if( xStatus == XST_SUCCESS )\r
84         {\r
85                 /* All LEDs on this channel are going to be outputs. */\r
86                 XGpio_SetDataDirection( &xOutputGPIOInstance, uxGPIOOutputChannel, ucSetToOutput );\r
87                 \r
88                 /* Start with all LEDs off. */\r
89                 ucCurrentLEDState = 0U;\r
90                 XGpio_DiscreteWrite( &xOutputGPIOInstance, uxGPIOOutputChannel, ucCurrentLEDState );\r
91         }\r
92         \r
93         configASSERT( ( xStatus == XST_SUCCESS ) );\r
94 }\r
95 /*-----------------------------------------------------------*/\r
96 \r
97 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
98 {\r
99 #if 0\r
100 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;\r
101 \r
102         portENTER_CRITICAL();\r
103         {\r
104                 /* Which IO section does the LED being set/cleared belong to?  The\r
105                 4 bit or 5 bit outputs? */\r
106                 if( uxLED <= partstMAX_4BIT_LED )\r
107                 {\r
108                         uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR;\r
109                         puxCurrentValue = &uxCurrentOutput4Bit;\r
110                 }       \r
111                 else\r
112                 {\r
113                         uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;\r
114                         puxCurrentValue = &uxCurrentOutput5Bit;\r
115                         uxLED -= partstMAX_4BIT_LED;\r
116                 }\r
117 \r
118                 /* Setup the bit mask accordingly. */\r
119                 uxLED = 0x01 << uxLED;\r
120 \r
121                 /* Maintain the current output value. */\r
122                 if( xValue )\r
123                 {\r
124                         *puxCurrentValue |= uxLED;\r
125                 }\r
126                 else\r
127                 {\r
128                         *puxCurrentValue &= ~uxLED;\r
129                 }\r
130 \r
131                 /* Write the value to the port. */\r
132                 XGpio_mSetDataReg( uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );\r
133         }\r
134         portEXIT_CRITICAL();\r
135 #endif\r
136 }\r
137 /*-----------------------------------------------------------*/\r
138 \r
139 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
140 {\r
141 #if 0\r
142 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;\r
143 \r
144         portENTER_CRITICAL();\r
145         {\r
146                 /* Which IO section does the LED being toggled belong to?  The\r
147                 4 bit or 5 bit outputs? */\r
148                 if( uxLED <= partstMAX_4BIT_LED )\r
149                 {\r
150                         uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR;\r
151                         puxCurrentValue = &uxCurrentOutput4Bit;\r
152                 }       \r
153                 else\r
154                 {\r
155                         uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;\r
156                         puxCurrentValue = &uxCurrentOutput5Bit;\r
157                         uxLED -= partstMAX_4BIT_LED;\r
158                 }\r
159 \r
160                 /* Setup the bit mask accordingly. */\r
161                 uxLED = 0x01 << uxLED;\r
162 \r
163                 /* Maintain the current output value. */\r
164                 if( *puxCurrentValue & uxLED )\r
165                 {\r
166                         *puxCurrentValue &= ~uxLED;\r
167                 }\r
168                 else\r
169                 {\r
170                         *puxCurrentValue |= uxLED;\r
171                 }\r
172 \r
173                 /* Write the value to the port. */\r
174                 XGpio_mSetDataReg(uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );\r
175         }\r
176         portEXIT_CRITICAL();\r
177 #endif\r
178 }\r
179 \r
180 \r
181 \r