xref: /FreeRTOS-Plus-TCP-v3.1.0/source/portable/NetworkInterface/pic32mzef/NetworkInterface_wifi.c (revision a4124602cc584fa0658448c229f48a459a84fbb1) 
1 /*******************************************************************************
2 *  Network Interface file
3 *
4 *  Summary:
5 *   Network Interface file for FreeRTOS-Plus-TCP stack
6 *
7 *  Description:
8 *   - Interfaces PIC32 to the FreeRTOS TCP/IP stack
9 *******************************************************************************/
10 
11 /*******************************************************************************
12 *  File Name:  pic32_NetworkInterface.c
13 *  Copyright 2017 Microchip Technology Incorporated and its subsidiaries.
14 *
15 *  Permission is hereby granted, free of charge, to any person obtaining a copy of
16 *  this software and associated documentation files (the "Software"), to deal in
17 *  the Software without restriction, including without limitation the rights to
18 *  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
19 *  of the Software, and to permit persons to whom the Software is furnished to do
20 *  so, subject to the following conditions:
21 *  The above copyright notice and this permission notice shall be included in all
22 *  copies or substantial portions of the Software.
23 *
24 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
27 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
29 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 *  SOFTWARE
31 *******************************************************************************/
32 #ifndef PIC32_USE_ETHERNET
33 #include <sys/kmem.h>
34 
35 #include "FreeRTOS.h"
36 #include "semphr.h"
37 #include "event_groups.h"
38 #include "FreeRTOS_IP.h"
39 #include "FreeRTOS_IP_Private.h"
40 
41 #include "NetworkInterface.h"
42 #include "NetworkBufferManagement.h"
43 #include "peripheral/eth/plib_eth.h"
44 
45 #include "system_config.h"
46 #include "system/console/sys_console.h"
47 #include "system/debug/sys_debug.h"
48 #include "system/command/sys_command.h"
49 
50 #include "driver/ethmac/drv_ethmac.h"
51 #include "driver/miim/drv_miim.h"
52 #include "m2m_types.h"
53 
54 #include "tcpip/tcpip.h"
55 #include "tcpip/src/tcpip_private.h"
56 #include "tcpip/src/link_list.h"
57 #include "wilc1000_task.h"
58 
59 #include "NetworkConfig.h"
60 
61 
62 #include "iot_wifi.h"
63 
64 /* local definitions and data */
65 
66 
67 /* FreeRTOS implementation functions */
xNetworkInterfaceInitialise(void)68 BaseType_t xNetworkInterfaceInitialise( void )
69 {
70     WIFINetworkParams_t xNetworkParams;
71 
72     xNetworkParams.ucSSIDLength = strnlen( clientcredentialWIFI_SSID,
73                                            wificonfigMAX_SSID_LEN );
74     memcpy( xNetworkParams.ucSSID,
75             clientcredentialWIFI_SSID,
76             xNetworkParams.ucSSIDLength );
77 
78     xNetworkParams.xPassword.xWPA.ucLength = strnlen( clientcredentialWIFI_PASSWORD,
79                                                       wificonfigMAX_PASSPHRASE_LEN );
80     memcpy( xNetworkParams.xPassword.xWPA.cPassphrase,
81             clientcredentialWIFI_PASSWORD,
82             xNetworkParams.xPassword.xWPA.ucLength );
83 
84     xNetworkParams.xSecurity = clientcredentialWIFI_SECURITY;
85     xNetworkParams.ucChannel = M2M_WIFI_CH_ALL; /* Scan all channels (255) */
86 
87     /*Turn  WiFi ON */
88     if( WIFI_On() != eWiFiSuccess )
89     {
90         return pdFAIL;
91     }
92 
93     /* Connect to the AP */
94     if( WIFI_ConnectAP( &xNetworkParams ) != eWiFiSuccess )
95     {
96         return pdFAIL;
97     }
98 
99     return pdPASS;
100 }
101 
102 
103 /*-----------------------------------------------------------*/
104 
xNetworkInterfaceOutput(NetworkBufferDescriptor_t * const pxDescriptor,BaseType_t xReleaseAfterSend)105 BaseType_t xNetworkInterfaceOutput( NetworkBufferDescriptor_t * const pxDescriptor,
106                                     BaseType_t xReleaseAfterSend )
107 {
108     BaseType_t retRes = pdFALSE;
109 
110     if( ( pxDescriptor != 0 ) && ( pxDescriptor->pucEthernetBuffer != 0 ) && ( pxDescriptor->xDataLength != 0 ) )
111     {
112         /* There you go */
113         if( WDRV_EXT_DataSend( pxDescriptor->xDataLength, pxDescriptor->pucEthernetBuffer ) == 0 )
114         {
115             retRes = pdTRUE;
116         }
117 
118         /* The buffer has been sent so can be released. */
119         if( xReleaseAfterSend != pdFALSE )
120         {
121             vReleaseNetworkBufferAndDescriptor( pxDescriptor );
122         }
123     }
124 
125     return retRes;
126 }
127 
128 
129 /************************************* Section: helper functions ************************************************** */
130 /* */
131 
132 
133 
134 /************************************* Section: worker code ************************************************** */
135 /* */
136 
xNetworkFrameReceived(uint32_t len,uint8_t const * const frame)137 void xNetworkFrameReceived( uint32_t len,
138                             uint8_t const * const frame )
139 {
140     bool pktSuccess, pktLost;
141     NetworkBufferDescriptor_t * pxNetworkBuffer = NULL;
142     IPStackEvent_t xRxEvent = { eNetworkRxEvent, NULL };
143 
144     pktSuccess = pktLost = false;
145 
146     while( true )
147     {
148         if( eConsiderFrameForProcessing( frame ) != eProcessBuffer )
149         {
150             break;
151         }
152 
153         /* get the network descriptor (no data buffer) to hold this packet */
154         pxNetworkBuffer = pxGetNetworkBufferWithDescriptor( len, 0 );
155 
156         if( pxNetworkBuffer == NULL )
157         {
158             pktLost = true;
159             break;
160         }
161 
162         /* Set the actual packet length, in case a larger buffer was
163          * returned. */
164         pxNetworkBuffer->xDataLength = len;
165 
166         /* Copy the packet. */
167         memcpy( pxNetworkBuffer->pucEthernetBuffer, frame, len );
168 
169         /* Send the data to the TCP/IP stack. */
170         xRxEvent.pvData = ( void * ) pxNetworkBuffer;
171 
172         if( xSendEventStructToIPTask( &xRxEvent, 0 ) == pdFALSE )
173         {   /* failed */
174             pktLost = true;
175         }
176         else
177         {   /* success */
178             pktSuccess = true;
179             iptraceNETWORK_INTERFACE_RECEIVE();
180         }
181 
182         break;
183     }
184 
185     if( !pktSuccess )
186     {   /* something went wrong; nothing sent to the */
187         if( pxNetworkBuffer != NULL )
188         {
189             pxNetworkBuffer->pucEthernetBuffer = 0;
190             vReleaseNetworkBufferAndDescriptor( pxNetworkBuffer );
191         }
192 
193         if( pktLost )
194         {
195             iptraceETHERNET_RX_EVENT_LOST();
196         }
197     }
198 }
199 
200 #endif /* #ifndef PIC32_USE_ETHERNET */
201