Diff: SNICInterface_mod/SNIC/SNIC_Core.cpp

Revision:

0:14bd24b5a77f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SNICInterface_mod/SNIC/SNIC_Core.cpp	Thu Mar 12 12:14:38 2015 +0000
@@ -0,0 +1,378 @@
+/* Copyright (C) 2014 Murata Manufacturing Co.,Ltd., MIT License
+ *  muRata, SWITCH SCIENCE Wi-FI module TypeYD SNIC-UART.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "mbed.h"
+#include "SNIC_Core.h"
+#include "SNIC_UartMsgUtil.h"
+#include <string>
+
+/** Wait signal ID of UART recv */
+#define UART_DISPATCH_SIGNAL    0x00000002
+
+#define UART_RECVBUF_SIZE       2048
+#define UART_THREAD_STACK_SIZE  512
+#define UART_FIXED_HEADER_SIZE    3
+#define UART_FIXED_SIZE_IN_FRAME  6
+#define UART_RECV_QUEUE_TIMEOUT   500
+
+typedef struct
+{
+    tagMEMPOOL_BLOCK_T  *mem_p;
+    unsigned int  size;
+}tagUART_RECVBUF_T;
+
+/*
+    Define the global buffer using the area for Ethernet.
+*/
+unsigned char  gUART_TEMP_BUF[UART_RECVBUF_SIZE]                __attribute__((section("AHBSRAM1")));
+unsigned char  gUART_COMMAND_BUF[UART_REQUEST_PAYLOAD_MAX]      __attribute__((section("AHBSRAM1")));
+/** MemoryPool for payload of UART response */
+//MemoryPool<tagMEMPOOL_BLOCK_T, MEMPOOL_PAYLOAD_NUM>     mMemPoolPayload  __attribute__((section("AHBSRAM1")));
+MemoryPool<tagMEMPOOL_BLOCK_T, MEMPOOL_PAYLOAD_NUM>     mMemPoolPayload  __attribute__((section("AHBSRAM0")));
+/** MemoryPool for UART receive */
+MemoryPool<tagMEMPOOL_BLOCK_T, MEMPOOL_UART_RECV_NUM>   mMemPoolUartRecv __attribute__((section("AHBSRAM0")));
+Queue<tagMEMPOOL_BLOCK_T, MEMPOOL_UART_RECV_NUM>        mUartRecvQueue;
+
+tagMEMPOOL_BLOCK_T   *gUART_RCVBUF_p;
+int gUART_RECV_COUNT = 0;
+
+C_SNIC_Core *C_SNIC_Core::mInstance_p = NULL;
+
+C_SNIC_Core *C_SNIC_Core::getInstance()
+{
+    if( mInstance_p == NULL )
+    {
+        mInstance_p    = new C_SNIC_Core();
+    }
+    return mInstance_p;
+}
+
+C_SNIC_Core::C_SNIC_Core()
+{
+    int i;
+    
+    mUartCommand_p = new C_SNIC_UartCommandManager();
+    for( i = 0; i < MAX_SOCKET_ID+1; i++ )
+    {
+        mConnectInfo[i].recvbuf_p    = NULL;
+        mConnectInfo[i].is_connected = false;
+        mConnectInfo[i].is_receive_complete = true;
+        
+        mUdpRecvInfo[i].recvbuf_p    = NULL;
+        mUdpRecvInfo[i].is_received  = false;
+    }
+    
+    mUartRecvThread_p         = NULL;
+    mUartRecvDispatchThread_p = NULL;
+}
+
+C_SNIC_Core::~C_SNIC_Core()
+{
+}
+
+int C_SNIC_Core::resetModule( PinName reset )
+{
+    DigitalOut reset_pin( reset );
+
+    reset_pin = 0;
+    wait(0.3);
+    reset_pin = 1;
+    wait(0.3);
+    
+    return 0;
+}
+
+int C_SNIC_Core::initUart(PinName tx, PinName rx, int baud)
+{
+    mUartRequestSeq = 0;
+
+    mUart_p = new RawSerial( tx, rx );
+    mUart_p->baud( baud );
+    mUart_p->format(8, SerialBase::None, 1);
+     
+    // Initialize uart
+    gUART_RCVBUF_p = NULL;
+
+    mUart_p->attach( C_SNIC_Core::uartRecvCallback );
+    // Create UART recv dispatch thread
+    mUartRecvDispatchThread_p = new Thread( C_SNIC_Core::uartRecvDispatchThread, NULL, osPriorityNormal, UART_THREAD_STACK_SIZE);
+    if( mUartRecvDispatchThread_p == NULL )
+    {
+        DEBUG_PRINT("[C_SNIC_Core::initUart] thread create failed\r\n");
+        return -1;
+    }
+
+    return 0;
+}
+unsigned int C_SNIC_Core::preparationSendCommand( unsigned char cmd_id, unsigned char cmd_sid
+                                            , unsigned char *req_buf_p,    unsigned int req_buf_len
+                                            , unsigned char *response_buf_p, unsigned char *command_p )
+{
+    unsigned int command_len = 0;
+    
+    // Make all command request
+    command_len = C_SNIC_UartMsgUtil::makeRequest( cmd_id, req_buf_p, req_buf_len, command_p );
+
+    // Set data for response
+    mUartCommand_p->setCommandID( cmd_id );
+    mUartCommand_p->setCommandSID( cmd_sid | 0x80 );
+    mUartCommand_p->setResponseBuf( response_buf_p );
+    
+    return command_len;
+}
+
+int C_SNIC_Core::sendUart( unsigned int len, unsigned char *data )
+{
+    int ret = 0;
+    mUartMutex.lock();
+    for( int i = 0; i < len; i++ )
+    {
+        // Write to UART
+        ret = mUart_p->putc( data[i] );
+        if( ret == -1 )
+        {
+            break;
+        }
+    }
+    mUartMutex.unlock();
+
+    return ret;
+}
+
+tagMEMPOOL_BLOCK_T *C_SNIC_Core::allocCmdBuf()
+{
+    // Get buffer from MemoryPool
+    return mMemPoolPayload.alloc();
+}
+
+void C_SNIC_Core::freeCmdBuf( tagMEMPOOL_BLOCK_T *buf_p )
+{
+    mMemPoolPayload.free( buf_p );
+}
+
+tagMEMPOOL_BLOCK_T *C_SNIC_Core::allocUartRcvBuf()
+{
+    // Get buffer from MemoryPool
+    return mMemPoolUartRecv.alloc();
+}
+
+void C_SNIC_Core::freeUartRecvBuf( tagMEMPOOL_BLOCK_T *buf_p )
+{
+    mMemPoolUartRecv.free( buf_p );
+}
+
+C_SNIC_Core::tagCONNECT_INFO_T  *C_SNIC_Core::getConnectInfo( int socket_id )
+{
+    if( (socket_id < 0) || (socket_id > MAX_SOCKET_ID) )
+    {
+        return NULL;
+    }
+    return &mConnectInfo[socket_id];
+}
+
+C_SNIC_Core::tagUDP_RECVINFO_T  *C_SNIC_Core::getUdpRecvInfo( int socket_id )
+{
+    if( (socket_id < 0) || (socket_id > MAX_SOCKET_ID) )
+    {
+        return NULL;
+    }
+    return &mUdpRecvInfo[socket_id];
+}
+
+C_SNIC_UartCommandManager *C_SNIC_Core::getUartCommand()
+{
+    return mUartCommand_p;
+}
+
+unsigned char *C_SNIC_Core::getCommandBuf()
+{
+    return gUART_COMMAND_BUF;
+}
+
+void C_SNIC_Core::lockAPI( void )
+{
+    mAPIMutex.lock();
+}
+
+void C_SNIC_Core::unlockAPI( void )
+{
+    mAPIMutex.unlock();
+}
+
+void C_SNIC_Core::uartRecvCallback( void )
+{
+    C_SNIC_Core *instance_p = C_SNIC_Core::getInstance();
+    if( instance_p != NULL )
+    {
+        int  recvdata = 0;
+
+        // Check received data from UART.
+        while( instance_p->mUart_p->readable() )
+        {
+            // Receive data from UART.
+            recvdata = instance_p->mUart_p->getc();
+
+            // Check UART receiving buffer
+            if( gUART_RCVBUF_p != NULL )
+            {
+                gUART_RCVBUF_p->buf[ gUART_RCVBUF_p->size ] = (unsigned char)recvdata;
+                gUART_RCVBUF_p->size++;
+                
+                if( gUART_RCVBUF_p->size == UART_FIXED_HEADER_SIZE )
+                {
+                    // get demand size
+                    unsigned short  payload_len = ( ( (gUART_RCVBUF_p->buf[1] & ~0x80) & 0xff) | ( ( (gUART_RCVBUF_p->buf[2] & ~0xC0) << 7) & 0xff80) );
+                    gUART_RCVBUF_p->demand_size = payload_len + UART_FIXED_SIZE_IN_FRAME;
+                    if( gUART_RCVBUF_p->demand_size > MEMPOOL_BLOCK_SIZE )
+                    {
+                        gUART_RCVBUF_p->demand_size = MEMPOOL_BLOCK_SIZE;
+                    }
+                }
+
+                if( gUART_RCVBUF_p->demand_size > 0 )
+                {
+                    // Check size of received data.
+                    if( gUART_RCVBUF_p->size >= gUART_RCVBUF_p->demand_size )
+                    {
+                        // Add queue 
+                        mUartRecvQueue.put( gUART_RCVBUF_p );
+                        
+                        gUART_RCVBUF_p = NULL;
+                    
+                        if( gUART_RECV_COUNT >= MEMPOOL_UART_RECV_NUM )
+                        {
+                            instance_p->mUart_p->attach( NULL );
+                        }
+                        // set signal for dispatch thread
+                        instance_p->mUartRecvDispatchThread_p->signal_set( UART_DISPATCH_SIGNAL );
+                        break;
+                    }
+                }
+            }
+            else
+            {
+                // Check  received data is SOM.
+                if( recvdata == UART_CMD_SOM )
+                {
+                    gUART_RCVBUF_p = instance_p->allocUartRcvBuf();
+                    gUART_RECV_COUNT++;
+                    gUART_RCVBUF_p->size = 0;
+                    gUART_RCVBUF_p->demand_size = 0;
+
+                    // get buffer for Uart receive
+                    gUART_RCVBUF_p->buf[ 0 ] = (unsigned char)recvdata;
+                    
+                    gUART_RCVBUF_p->size++;
+                }
+            }
+        }
+    }
+}
+
+void C_SNIC_Core::uartRecvDispatchThread (void const *args_p)
+{
+    C_SNIC_Core               *instance_p   = C_SNIC_Core::getInstance();
+    C_SNIC_UartCommandManager *uartCmdMgr_p = instance_p->getUartCommand();
+    
+    tagMEMPOOL_BLOCK_T  *uartRecvBuf_p;
+    osEvent      evt;
+    
+    for(;;)
+    {
+        // wait
+        Thread::signal_wait( UART_DISPATCH_SIGNAL );
+
+        // Get scanresults from queue
+        evt = mUartRecvQueue.get(UART_RECV_QUEUE_TIMEOUT);
+        if (evt.status == osEventMessage)
+        {
+            do
+            {
+                uartRecvBuf_p = (tagMEMPOOL_BLOCK_T *)evt.value.p;
+
+#if 0   /* for Debug */
+                {
+                    int i;
+                    for(i=0;i<uartRecvBuf_p->size;i++)
+                    {
+                        DEBUG_PRINT("%02x", uartRecvBuf_p->buf[i]);
+                    }
+                    DEBUG_PRINT("\r\n");
+                }
+#endif
+                unsigned char command_id;
+                // Get payload from received data from UART.
+                int payload_len = C_SNIC_UartMsgUtil::getResponsePayload( uartRecvBuf_p->size, uartRecvBuf_p->buf
+                                                        , &command_id, gUART_TEMP_BUF );
+                // Check receive a TCP packet
+                if( (command_id == UART_CMD_ID_SNIC) && (gUART_TEMP_BUF[0] == UART_CMD_SID_SNIC_CONNECTION_RECV_IND) )
+                {
+                    // Packet buffering
+                    uartCmdMgr_p->bufferredPacket( gUART_TEMP_BUF, payload_len );
+                }
+                // Check connected from TCP client
+                else if( (command_id == UART_CMD_ID_SNIC) && (gUART_TEMP_BUF[0] == UART_CMD_SID_SNIC_TCP_CLIENT_SOCKET_IND) )
+                {
+                    // Connected from TCP client
+                    uartCmdMgr_p->connectedTCPClient( gUART_TEMP_BUF, payload_len );
+                }
+                // Check receive UDP packet
+                else if( (command_id == UART_CMD_ID_SNIC) && (gUART_TEMP_BUF[0] == UART_CMD_SID_SNIC_UDP_RECV_IND) )
+                {
+                    // UDP packet buffering
+                    uartCmdMgr_p->bufferredUDPPacket( gUART_TEMP_BUF, payload_len );
+                }
+                // Check scan results indication 
+                else if( (command_id == UART_CMD_ID_WIFI) && (gUART_TEMP_BUF[0] == UART_CMD_SID_WIFI_SCAN_RESULT_IND) )
+                {
+                    // Scan result indicate
+                    uartCmdMgr_p->scanResultIndicate( gUART_TEMP_BUF, payload_len );
+                }
+                // Checks in the command which is waiting.
+                else if( uartCmdMgr_p->isWaitingCommand(command_id, gUART_TEMP_BUF) )
+                {
+                    // Get buffer for payload data
+                    unsigned char *payload_buf_p = uartCmdMgr_p->getResponseBuf();
+                    if( payload_buf_p != NULL )
+                    {
+                        memcpy( payload_buf_p, gUART_TEMP_BUF, payload_len );
+                        uartCmdMgr_p->setResponseBuf( NULL );
+                    }
+                    // Set status
+                    uartCmdMgr_p->setCommandStatus( gUART_TEMP_BUF[2] );
+                    // Set signal for command response wait.
+                    uartCmdMgr_p->signal();
+                }
+                else
+                {
+                    //DEBUG_PRINT(" The received data is not expected.\r\n");
+                }
+                
+                // 
+                instance_p->freeUartRecvBuf( uartRecvBuf_p );
+                gUART_RECV_COUNT--;
+                if( gUART_RECV_COUNT == (MEMPOOL_UART_RECV_NUM-1) )
+                {
+                    instance_p->mUart_p->attach( C_SNIC_Core::uartRecvCallback );   //debug
+                }
+                
+                evt = mUartRecvQueue.get(500);
+            } while( evt.status == osEventMessage );
+        }
+    }
+}