2 FreeRTOS.org V5.2.0 - Copyright (C) 2003-2009 Richard Barry.
\r
4 This file is part of the FreeRTOS.org distribution.
\r
6 FreeRTOS.org is free software; you can redistribute it and/or modify it
\r
7 under the terms of the GNU General Public License (version 2) as published
\r
8 by the Free Software Foundation and modified by the FreeRTOS exception.
\r
10 FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
\r
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
\r
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
\r
15 You should have received a copy of the GNU General Public License along
\r
16 with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
\r
17 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
\r
19 A special exception to the GPL is included to allow you to distribute a
\r
20 combined work that includes FreeRTOS.org without being obliged to provide
\r
21 the source code for any proprietary components. See the licensing section
\r
22 of http://www.FreeRTOS.org for full details.
\r
25 ***************************************************************************
\r
27 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
\r
29 * This is a concise, step by step, 'hands on' guide that describes both *
\r
30 * general multitasking concepts and FreeRTOS specifics. It presents and *
\r
31 * explains numerous examples that are written using the FreeRTOS API. *
\r
32 * Full source code for all the examples is provided in an accompanying *
\r
35 ***************************************************************************
\r
39 Please ensure to read the configuration and relevant port sections of the
\r
40 online documentation.
\r
42 http://www.FreeRTOS.org - Documentation, latest information, license and
\r
45 http://www.SafeRTOS.com - A version that is certified for use in safety
\r
48 http://www.OpenRTOS.com - Commercial support, development, porting,
\r
49 licensing and training services.
\r
51 /* Standard includes. */
\r
54 /* Scheduler includes. */
\r
55 #include "FreeRTOS.h"
\r
61 #include "uip_arp.h"
\r
64 #include "clock-arch.h"
\r
66 /* Demo includes. */
\r
68 #include "partest.h"
\r
70 /*-----------------------------------------------------------*/
\r
72 /* MAC address configuration. */
\r
73 #define uipMAC_ADDR0 0x00
\r
74 #define uipMAC_ADDR1 0x12
\r
75 #define uipMAC_ADDR2 0x13
\r
76 #define uipMAC_ADDR3 0x10
\r
77 #define uipMAC_ADDR4 0x15
\r
78 #define uipMAC_ADDR5 0x11
\r
80 /* IP address configuration. */
\r
81 #define uipIP_ADDR0 172
\r
82 #define uipIP_ADDR1 25
\r
83 #define uipIP_ADDR2 218
\r
84 #define uipIP_ADDR3 10
\r
86 /* How long to wait before attempting to connect the MAC again. */
\r
87 #define uipINIT_WAIT 100
\r
89 /* Shortcut to the header within the Rx buffer. */
\r
90 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
\r
92 /* Standard constant. */
\r
93 #define uipTOTAL_FRAME_HEADER_SIZE 54
\r
95 /*-----------------------------------------------------------*/
\r
98 * Send the uIP buffer to the MAC.
\r
100 static void prvENET_Send(void);
\r
103 * Setup the MAC address in the MAC itself, and in the uIP stack.
\r
105 static void prvSetMACAddress( void );
\r
108 * Port functions required by the uIP stack.
\r
110 void clock_init( void );
\r
111 clock_time_t clock_time( void );
\r
113 /*-----------------------------------------------------------*/
\r
115 /* The semaphore used by the ISR to wake the uIP task. */
\r
116 extern xSemaphoreHandle xEMACSemaphore;
\r
118 /*-----------------------------------------------------------*/
\r
120 void clock_init(void)
\r
122 /* This is done when the scheduler starts. */
\r
124 /*-----------------------------------------------------------*/
\r
126 clock_time_t clock_time( void )
\r
128 return xTaskGetTickCount();
\r
130 /*-----------------------------------------------------------*/
\r
132 void vuIP_Task( void *pvParameters )
\r
135 uip_ipaddr_t xIPAddr;
\r
136 struct timer periodic_timer, arp_timer;
\r
137 extern void ( vEMAC_ISR_Wrapper )( void );
\r
139 /* Create the semaphore used by the ISR to wake this task. */
\r
140 vSemaphoreCreateBinary( xEMACSemaphore );
\r
142 /* Initialise the uIP stack. */
\r
143 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
\r
144 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
\r
146 uip_ipaddr( xIPAddr, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );
\r
147 uip_sethostaddr( xIPAddr );
\r
150 /* Initialise the MAC. */
\r
151 while( Init_EMAC() != pdPASS )
\r
153 vTaskDelay( uipINIT_WAIT );
\r
156 portENTER_CRITICAL();
\r
158 IntEnable = INT_RX_DONE;
\r
159 VICIntEnable |= 0x00200000;
\r
160 VICVectAddr21 = ( portLONG ) vEMAC_ISR_Wrapper;
\r
161 prvSetMACAddress();
\r
163 portEXIT_CRITICAL();
\r
168 /* Is there received data ready to be processed? */
\r
169 uip_len = uiGetEMACRxData( uip_buf );
\r
173 /* Standard uIP loop taken from the uIP manual. */
\r
174 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
\r
179 /* If the above function invocation resulted in data that
\r
180 should be sent out on the network, the global variable
\r
181 uip_len is set to a value > 0. */
\r
188 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
\r
192 /* If the above function invocation resulted in data that
\r
193 should be sent out on the network, the global variable
\r
194 uip_len is set to a value > 0. */
\r
203 if( timer_expired( &periodic_timer ) )
\r
205 timer_reset( &periodic_timer );
\r
206 for( i = 0; i < UIP_CONNS; i++ )
\r
210 /* If the above function invocation resulted in data that
\r
211 should be sent out on the network, the global variable
\r
212 uip_len is set to a value > 0. */
\r
220 /* Call the ARP timer function every 10 seconds. */
\r
221 if( timer_expired( &arp_timer ) )
\r
223 timer_reset( &arp_timer );
\r
229 /* We did not receive a packet, and there was no periodic
\r
230 processing to perform. Block for a fixed period. If a packet
\r
231 is received during this period we will be woken by the ISR
\r
232 giving us the Semaphore. */
\r
233 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
\r
238 /*-----------------------------------------------------------*/
\r
240 static void prvENET_Send(void)
\r
244 /* Copy the header into the Tx buffer. */
\r
245 CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
\r
246 if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
\r
248 CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
\r
251 DoSend_EMAC( uip_len );
\r
253 /*-----------------------------------------------------------*/
\r
255 static void prvSetMACAddress( void )
\r
257 struct uip_eth_addr xAddr;
\r
259 /* Configure the MAC address in the uIP stack. */
\r
260 xAddr.addr[ 0 ] = uipMAC_ADDR0;
\r
261 xAddr.addr[ 1 ] = uipMAC_ADDR1;
\r
262 xAddr.addr[ 2 ] = uipMAC_ADDR2;
\r
263 xAddr.addr[ 3 ] = uipMAC_ADDR3;
\r
264 xAddr.addr[ 4 ] = uipMAC_ADDR4;
\r
265 xAddr.addr[ 5 ] = uipMAC_ADDR5;
\r
266 uip_setethaddr( xAddr );
\r
268 /*-----------------------------------------------------------*/
\r
270 void vApplicationProcessFormInput( portCHAR *pcInputString, portBASE_TYPE xInputLength )
\r
273 static portCHAR cMessageForDisplay[ 32 ];
\r
274 extern xQueueHandle xLCDQueue;
\r
275 xLCDMessage xLCDMessage;
\r
277 /* Process the form input sent by the IO page of the served HTML. */
\r
279 c = strstr( pcInputString, "?" );
\r
282 /* Turn LED's on or off in accordance with the check box status. */
\r
283 if( strstr( c, "LED0=1" ) != NULL )
\r
285 vParTestSetLED( 5, 0 );
\r
289 vParTestSetLED( 5, 1 );
\r
292 if( strstr( c, "LED1=1" ) != NULL )
\r
294 vParTestSetLED( 6, 0 );
\r
298 vParTestSetLED( 6, 1 );
\r
301 if( strstr( c, "LED2=1" ) != NULL )
\r
303 vParTestSetLED( 7, 0 );
\r
307 vParTestSetLED( 7, 1 );
\r
310 /* Find the start of the text to be displayed on the LCD. */
\r
311 pcText = strstr( c, "LCD=" );
\r
312 pcText += strlen( "LCD=" );
\r
314 /* Terminate the file name for further processing within uIP. */
\r
317 /* Terminate the LCD string. */
\r
318 c = strstr( pcText, " " );
\r
324 /* Add required spaces. */
\r
325 while( ( c = strstr( pcText, "+" ) ) != NULL )
\r
330 /* Write the message to the LCD. */
\r
331 strcpy( cMessageForDisplay, pcText );
\r
332 xLCDMessage.xColumn = 0;
\r
333 xLCDMessage.pcMessage = cMessageForDisplay;
\r
334 xQueueSend( xLCDQueue, &xLCDMessage, portMAX_DELAY );
\r