2 * FreeRTOS Kernel V10.3.0
\r
3 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
\r
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
\r
6 * this software and associated documentation files (the "Software"), to deal in
\r
7 * the Software without restriction, including without limitation the rights to
\r
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
\r
9 * the Software, and to permit persons to whom the Software is furnished to do so,
\r
10 * subject to the following conditions:
\r
12 * The above copyright notice and this permission notice shall be included in all
\r
13 * copies or substantial portions of the Software.
\r
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
\r
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
\r
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
\r
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
\r
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
\r
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\r
22 * http://www.FreeRTOS.org
\r
23 * http://aws.amazon.com/freertos
\r
25 * 1 tab == 4 spaces!
\r
28 /* Standard includes. */
\r
31 /* Scheduler includes. */
\r
32 #include "FreeRTOS.h"
\r
36 /* Demo includes. */
\r
38 #include "partest.h"
\r
42 #include "uip_arp.h"
\r
45 #include "clock-arch.h"
\r
47 /*-----------------------------------------------------------*/
\r
49 /* How long to wait before attempting to connect the MAC again. */
\r
50 #define uipINIT_WAIT ( 100 / portTICK_PERIOD_MS )
\r
52 /* Shortcut to the header within the Rx buffer. */
\r
53 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
\r
55 /* Standard constant. */
\r
56 #define uipTOTAL_FRAME_HEADER_SIZE 54
\r
59 /*-----------------------------------------------------------*/
\r
62 * Setup the MAC address in the MAC itself, and in the uIP stack.
\r
64 static void prvSetMACAddress( void );
\r
67 * Port functions required by the uIP stack.
\r
69 void clock_init( void );
\r
70 clock_time_t clock_time( void );
\r
72 /*-----------------------------------------------------------*/
\r
74 /* The semaphore used by the ISR to wake the uIP task. */
\r
75 SemaphoreHandle_t xEMACSemaphore;
\r
77 /* The buffer used by the uIP stack. In this case the pointer is used to
\r
78 point to one of the Rx buffers. */
\r
79 unsigned char *uip_buf = NULL;
\r
81 /*-----------------------------------------------------------*/
\r
83 void clock_init(void)
\r
85 /* This is done when the scheduler starts. */
\r
87 /*-----------------------------------------------------------*/
\r
89 clock_time_t clock_time( void )
\r
91 return xTaskGetTickCount();
\r
93 /*-----------------------------------------------------------*/
\r
95 void vuIP_Task( void *pvParameters )
\r
98 uip_ipaddr_t xIPAddr;
\r
99 struct timer periodic_timer, arp_timer;
\r
101 ( void ) pvParameters;
\r
103 /* Create the semaphore used by the ISR to wake this task. */
\r
104 vSemaphoreCreateBinary( xEMACSemaphore );
\r
106 /* Initialise the uIP stack. */
\r
107 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
\r
108 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
\r
110 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
\r
111 uip_sethostaddr( xIPAddr );
\r
112 uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
\r
113 uip_setnetmask( xIPAddr );
\r
116 /* Initialise the MAC. */
\r
117 while( xEthInitialise() != pdPASS )
\r
119 vTaskDelay( uipINIT_WAIT );
\r
122 prvSetMACAddress();
\r
126 /* Is there received data ready to be processed? */
\r
127 uip_len = usGetMACRxData();
\r
129 if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
\r
131 /* Standard uIP loop taken from the uIP manual. */
\r
132 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
\r
137 /* If the above function invocation resulted in data that
\r
138 should be sent out on the network, the global variable
\r
139 uip_len is set to a value > 0. */
\r
143 vSendMACData( uip_len );
\r
146 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
\r
150 /* If the above function invocation resulted in data that
\r
151 should be sent out on the network, the global variable
\r
152 uip_len is set to a value > 0. */
\r
155 vSendMACData( uip_len );
\r
161 if( ( timer_expired( &periodic_timer ) ) && ( uip_buf != NULL ) )
\r
163 timer_reset( &periodic_timer );
\r
164 for( i = 0; i < UIP_CONNS; i++ )
\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
174 vSendMACData( uip_len );
\r
178 /* Call the ARP timer function every 10 seconds. */
\r
179 if( timer_expired( &arp_timer ) )
\r
181 timer_reset( &arp_timer );
\r
187 /* We did not receive a packet, and there was no periodic
\r
188 processing to perform. Block for a fixed period. If a packet
\r
189 is received during this period we will be woken by the ISR
\r
190 giving us the Semaphore. */
\r
191 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
\r
196 /*-----------------------------------------------------------*/
\r
198 static void prvSetMACAddress( void )
\r
200 struct uip_eth_addr xAddr;
\r
202 /* Configure the MAC address in the uIP stack. */
\r
203 xAddr.addr[ 0 ] = configMAC_ADDR0;
\r
204 xAddr.addr[ 1 ] = configMAC_ADDR1;
\r
205 xAddr.addr[ 2 ] = configMAC_ADDR2;
\r
206 xAddr.addr[ 3 ] = configMAC_ADDR3;
\r
207 xAddr.addr[ 4 ] = configMAC_ADDR4;
\r
208 xAddr.addr[ 5 ] = configMAC_ADDR5;
\r
209 uip_setethaddr( xAddr );
\r
211 /*-----------------------------------------------------------*/
\r
213 void vApplicationProcessFormInput( char *pcInputString )
\r
216 static char cMessageForDisplay[ 32 ];
\r
217 static const char *pcMessage = cMessageForDisplay;
\r
218 extern QueueHandle_t xLCDQueue;
\r
220 /* Process the form input sent by the IO page of the served HTML. */
\r
222 c = strstr( pcInputString, "?" );
\r
225 /* Turn LED's on or off in accordance with the check box status. */
\r
226 if( strstr( c, "LED0=1" ) != NULL )
\r
229 vParTestSetLED( 3, 1 );
\r
234 vParTestSetLED( 3, 0 );
\r
237 /* Find the start of the text to be displayed on the LCD. */
\r
238 pcText = strstr( c, "LCD=" );
\r
239 pcText += strlen( "LCD=" );
\r
241 /* Terminate the file name for further processing within uIP. */
\r
244 /* Terminate the LCD string. */
\r
245 c = strstr( pcText, " " );
\r
251 /* Add required spaces. */
\r
252 while( ( c = strstr( pcText, "+" ) ) != NULL )
\r
257 /* Write the message to the LCD. */
\r
258 strcpy( cMessageForDisplay, pcText );
\r
259 xQueueSend( xLCDQueue, &pcMessage, portMAX_DELAY );
\r