2 FreeRTOS.org V4.7.1 - Copyright (C) 2003-2008 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
\r
7 it under the terms of the GNU General Public License as published by
\r
8 the Free Software Foundation; either version 2 of the License, or
\r
9 (at your option) any later version.
\r
11 FreeRTOS.org is distributed in the hope that it will be useful,
\r
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
\r
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\r
14 GNU General Public License for more details.
\r
16 You should have received a copy of the GNU General Public License
\r
17 along with FreeRTOS.org; if not, write to the Free Software
\r
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
\r
20 A special exception to the GPL can be applied should you wish to distribute
\r
21 a combined work that includes FreeRTOS.org, without being obliged to provide
\r
22 the source code for any proprietary components. See the licensing section
\r
23 of http://www.FreeRTOS.org for full details of how and when the exception
\r
26 ***************************************************************************
\r
27 See http://www.FreeRTOS.org for documentation, latest information, license
\r
28 and contact details. Please ensure to read the configuration and relevant
\r
29 port sections of the online documentation.
\r
30 ***************************************************************************
\r
32 /* Standard includes. */
\r
35 /* Scheduler includes. */
\r
36 #include "FreeRTOS.h"
\r
41 #include "hw_types.h"
\r
43 #include "uip_arp.h"
\r
46 #include "clock-arch.h"
\r
47 #include "hw_ethernet.h"
\r
48 #include "ethernet.h"
\r
49 #include "hw_memmap.h"
\r
50 #include "lmi_flash.h"
\r
53 /* Demo includes. */
\r
55 #include "partest.h"
\r
56 #include "lcd_message.h"
\r
60 clock_time_t interval;
\r
64 /*-----------------------------------------------------------*/
\r
66 /* IP address configuration. */
\r
67 #define uipIP_ADDR0 172
\r
68 #define uipIP_ADDR1 25
\r
69 #define uipIP_ADDR2 218
\r
70 #define uipIP_ADDR3 19
\r
72 /* How long to wait before attempting to connect the MAC again. */
\r
73 #define uipINIT_WAIT 100
\r
75 /* Shortcut to the header within the Rx buffer. */
\r
76 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
\r
78 /* Standard constant. */
\r
79 #define uipTOTAL_FRAME_HEADER_SIZE 54
\r
81 /*-----------------------------------------------------------*/
\r
84 * Send the uIP buffer to the MAC.
\r
86 static void prvENET_Send(void);
\r
89 * Setup the MAC address in the MAC itself, and in the uIP stack.
\r
91 static void prvSetMACAddress( void );
\r
94 * Port functions required by the uIP stack.
\r
96 void clock_init( void );
\r
97 clock_time_t clock_time( void );
\r
99 /*-----------------------------------------------------------*/
\r
101 /* The semaphore used by the ISR to wake the uIP task. */
\r
102 extern xSemaphoreHandle xEMACSemaphore;
\r
104 /*-----------------------------------------------------------*/
\r
106 void clock_init(void)
\r
108 /* This is done when the scheduler starts. */
\r
110 /*-----------------------------------------------------------*/
\r
112 /* Define clock functions here to avoid header file name clash between uIP
\r
113 and the Luminary Micro driver library. */
\r
114 clock_time_t clock_time( void )
\r
116 return xTaskGetTickCount();
\r
118 extern void timer_set(struct timer *t, clock_time_t interval);
\r
119 extern int timer_expired(struct timer *t);
\r
120 extern void timer_reset(struct timer *t);
\r
125 void vuIP_Task( void *pvParameters )
\r
128 uip_ipaddr_t xIPAddr;
\r
129 struct timer periodic_timer, arp_timer;
\r
130 extern void ( vEMAC_ISR )( void );
\r
132 /* Enable/Reset the Ethernet Controller */
\r
133 SysCtlPeripheralEnable( SYSCTL_PERIPH_ETH );
\r
134 SysCtlPeripheralReset( SYSCTL_PERIPH_ETH );
\r
136 /* Create the semaphore used by the ISR to wake this task. */
\r
137 vSemaphoreCreateBinary( xEMACSemaphore );
\r
139 /* Initialise the uIP stack. */
\r
140 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
\r
141 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
\r
143 uip_ipaddr( xIPAddr, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );
\r
144 uip_sethostaddr( xIPAddr );
\r
147 while( vInitEMAC() != pdPASS )
\r
149 vTaskDelay( uipINIT_WAIT );
\r
151 prvSetMACAddress();
\r
156 /* Is there received data ready to be processed? */
\r
157 uip_len = uiGetEMACRxData( uip_buf );
\r
161 /* Standard uIP loop taken from the uIP manual. */
\r
163 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
\r
168 /* If the above function invocation resulted in data that
\r
169 should be sent out on the network, the global variable
\r
170 uip_len is set to a value > 0. */
\r
177 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
\r
181 /* If the above function invocation resulted in data that
\r
182 should be sent out on the network, the global variable
\r
183 uip_len is set to a value > 0. */
\r
192 if( timer_expired( &periodic_timer ) )
\r
194 timer_reset( &periodic_timer );
\r
195 for( i = 0; i < UIP_CONNS; i++ )
\r
199 /* If the above function invocation resulted in data that
\r
200 should be sent out on the network, the global variable
\r
201 uip_len is set to a value > 0. */
\r
209 /* Call the ARP timer function every 10 seconds. */
\r
210 if( timer_expired( &arp_timer ) )
\r
212 timer_reset( &arp_timer );
\r
218 /* We did not receive a packet, and there was no periodic
\r
219 processing to perform. Block for a fixed period. If a packet
\r
220 is received during this period we will be woken by the ISR
\r
221 giving us the Semaphore. */
\r
222 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
\r
227 /*-----------------------------------------------------------*/
\r
229 static void prvENET_Send(void)
\r
232 vIncrementTxLength( uip_len );
\r
233 vSendBufferToMAC();
\r
235 /*-----------------------------------------------------------*/
\r
237 static void prvSetMACAddress( void )
\r
239 unsigned portLONG ulUser0, ulUser1;
\r
240 unsigned char pucMACArray[8];
\r
241 struct uip_eth_addr xAddr;
\r
243 /* Get the device MAC address from flash */
\r
244 FlashUserGet(&ulUser0, &ulUser1);
\r
246 /* Convert the MAC address from flash into sequence of bytes. */
\r
247 pucMACArray[0] = ((ulUser0 >> 0) & 0xff);
\r
248 pucMACArray[1] = ((ulUser0 >> 8) & 0xff);
\r
249 pucMACArray[2] = ((ulUser0 >> 16) & 0xff);
\r
250 pucMACArray[3] = ((ulUser1 >> 0) & 0xff);
\r
251 pucMACArray[4] = ((ulUser1 >> 8) & 0xff);
\r
252 pucMACArray[5] = ((ulUser1 >> 16) & 0xff);
\r
254 /* Program the MAC address. */
\r
255 EthernetMACAddrSet(ETH_BASE, pucMACArray);
\r
257 xAddr.addr[ 0 ] = pucMACArray[0];
\r
258 xAddr.addr[ 1 ] = pucMACArray[1];
\r
259 xAddr.addr[ 2 ] = pucMACArray[2];
\r
260 xAddr.addr[ 3 ] = pucMACArray[3];
\r
261 xAddr.addr[ 4 ] = pucMACArray[4];
\r
262 xAddr.addr[ 5 ] = pucMACArray[5];
\r
263 uip_setethaddr( xAddr );
\r
265 /*-----------------------------------------------------------*/
\r
267 void vApplicationProcessFormInput( portCHAR *pcInputString, portBASE_TYPE xInputLength )
\r
270 static portCHAR cMessageForDisplay[ 32 ];
\r
271 extern xQueueHandle xOLEDQueue;
\r
272 xOLEDMessage xOLEDMessage;
\r
274 /* Process the form input sent by the IO page of the served HTML. */
\r
276 c = strstr( pcInputString, "?" );
\r
280 /* Turn LED's on or off in accordance with the check box status. */
\r
281 if( strstr( c, "LED0=1" ) != NULL )
\r
283 vParTestSetLED( 0, 1 );
\r
287 vParTestSetLED( 0, 0 );
\r
290 /* Find the start of the text to be displayed on the LCD. */
\r
291 pcText = strstr( c, "LCD=" );
\r
292 pcText += strlen( "LCD=" );
\r
294 /* Terminate the file name for further processing within uIP. */
\r
297 /* Terminate the LCD string. */
\r
298 c = strstr( pcText, " " );
\r
304 /* Add required spaces. */
\r
305 while( ( c = strstr( pcText, "+" ) ) != NULL )
\r
310 /* Write the message to the LCD. */
\r
311 strcpy( cMessageForDisplay, pcText );
\r
312 xOLEDMessage.pcMessage = cMessageForDisplay;
\r
313 xQueueSend( xOLEDQueue, &xOLEDMessage, portMAX_DELAY );
\r