DSP-6678 --- 多核DSP图像处理（3）再来瞅瞅主核程序之TCP进程

uperrua · 发表于 2019-10-8 14:20

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StartNetworkTask进程是在cfg文件中创建的进程。主要用于接收上位机通过TCP传来的图片数据以及将处理结果传输给上位机。具体流程本节介绍。

一、StartNetworkTask
; S/ t7 J5 t0 ^: K* v: e$ r, _- C- _
1 TCP的配置

rc = NC_SystemOpen( NC_PRIORITY_LOW, NC_OPMODE_INTERRUPT );
if( rc )
{
printf("NC_SystemOpen Failed (%d)\n",rc);
for(;;);
}
// Create and build the system configuration from scratch.
// Create a new configuration
hCfg = CfgNew();
if( !hCfg )
{
printf("Unable to create configuration\n");
goto main_exit;
}
// THIS MUST BE THE ABSOLUTE FIRST THING DONE IN AN APPLICATION!!
rc = NC_SystemOpen( NC_PRIORITY_LOW, NC_OPMODE_INTERRUPT );
if( rc )
{
printf("NC_SystemOpen Failed (%d)\n",rc);
for(;;);
}
// Create and build the system configuration from scratch.
// Create a new configuration
hCfg = CfgNew();
if( !hCfg )
{
printf("Unable to create configuration\n");
goto main_exit;
}
// We better validate the length of the supplied names
if( strlen( DomainName ) >= CFG_DOMAIN_MAX ||
strlen( HostName ) >= CFG_HOSTNAME_MAX )
{
printf("Names too long\n");
goto main_exit;
}
// Add our global hostname to hCfg (to be claimed in all connected domains)
CfgAddEntry( hCfg, CFGTAG_SYSINFO, CFGITEM_DHCP_HOSTNAME, 0,
strlen(HostName), (UINT8 *)HostName, 0 );
// If the IP address is specified, manually configure IP and Gateway
#if defined(_SCBP6618X_) || defined(_EVMTCI6614_) || defined(DEVICE_K2H) || defined(DEVICE_K2K)
/* SCBP6618x, EVMTCI6614, EVMK2H, EVMK2K always uses DHCP */
if (0)
#else
if (1)//(!platform_get_switch_state(1))
#endif
{
CI_IPNET NA;
CI_ROUTE RT;
IPN IPTmp;
// Setup manual IP address
bzero( &NA, sizeof(NA) );
NA.IPAddr = inet_addr(LocalIPAddr); //设置IP
NA.IPMask = inet_addr(LocalIPMask); //设置掩码
strcpy( NA.Domain, DomainName );
NA.NetType = 0;
// Add the address to inteRFace 1
CfgAddEntry( hCfg, CFGTAG_IPNET, 1, 0, sizeof(CI_IPNET), (UINT8 *)&NA, 0 );
// Add the default gateway. Since it is the default, the
// destination address and mask are both zero (we go ahead
// and show the assignment for clarity).
bzero( &RT, sizeof(RT) );
RT.IPDestAddr = 0;
RT.IPDestMask = 0;
RT.IPGateAddr = inet_addr(GatewayIP);
// Add the route
CfgAddEntry( hCfg, CFGTAG_ROUTE, 0, 0,sizeof(CI_ROUTE), (UINT8 *)&RT, 0 );
// Manually add the DNS server when specified
IPTmp = inet_addr(DNSServer);// "0.0.0.0"
if( IPTmp )
CfgAddEntry( hCfg, CFGTAG_SYSINFO, CFGITEM_DHCP_DOMAINNAMESERVER,
0, sizeof(IPTmp), (UINT8 *)&IPTmp, 0 );
}
// Else we specify DHCP
else
{
CI_SERVICE_DHCPC dhcpc;
// Specify DHCP Service on IF-1
bzero( &dhcpc, sizeof(dhcpc) );
dhcpc.cisargs.Mode = CIS_FLG_IFIDXVALID;
dhcpc.cisargs.IfIdx = 1;
dhcpc.cisargs.pCbSrv = &ServiceReport;
CfgAddEntry( hCfg, CFGTAG_SERVICE, CFGITEM_SERVICE_DHCPCLIENT, 0,
sizeof(dhcpc), (UINT8 *)&dhcpc, 0 );
}
// Configure IPStack/OS Options
// We don't want to see debug messages less than WARNINGS
rc = DBG_ERROR;
CfgAddEntry( hCfg, CFGTAG_OS, CFGITEM_OS_DBGPRINTLEVEL,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
//
// This code sets up the TCP and UDP buffer sizes
// (Note 8192 is actually the default. This code is here to
// illustrate how the buffer and limit sizes are configured.)
//
/* TCP Transmit buffer size */
rc = 64000;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPTXBUF,
CFG_ADDMODE_UNIQUE, sizeof(uint), (uint8_t *)&rc, 0 );
/* TCP Receive buffer size (copy mode) */
rc = 64000;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPRXBUF,
CFG_ADDMODE_UNIQUE, sizeof(uint), (uint8_t *)&rc, 0 );
/* TCP Receive limit (non-copy mode) */
rc = 64000;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPRXLIMIT,
CFG_ADDMODE_UNIQUE, sizeof(uint), (uint8_t *)&rc, 0 );
// UDP Receive limit
rc = 8192;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKUDPRXLIMIT,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );/ _! x0 l: o) T* B( e

do
{
// 调用起始函数调用结束函数调用IP地址设置函数
rc = NC_NetStart( hCfg, NetworkOpen, NetworkClose, NetworkIPAddr );
} while( rc > 0 );
7 d! b! k2 n2 k; E+ {/ \4 s

// 调用起始函数调用结束函数调用IP地址设置函数
rc = NC_NetStart( hCfg, NetworkOpen, NetworkClose, NetworkIPAddr );
} while( rc > 0 );

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fanichicl · 发表于 2019-10-8 17:31

来瞅瞅主核程序之TCP进程。

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DSP-6678 --- 多核DSP图像处理（3）再来瞅瞅主核程序之TCP进程

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