2 FreeRTOS.org V5.3.0 - 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
9 **NOTE** The exception to the GPL is included to allow you to distribute a
\r
10 combined work that includes FreeRTOS.org without being obliged to provide
\r
11 the source code for any proprietary components. Alternative commercial
\r
12 license and support terms are also available upon request. See the
\r
13 licensing section of http://www.FreeRTOS.org for full details.
\r
15 FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
\r
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
\r
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
\r
20 You should have received a copy of the GNU General Public License along
\r
21 with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
\r
22 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
\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 16
\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 MAC_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