globals.c

Analog公司的ADSP_BF532上面实现以太网接口的源码

//##############################################################
//#
//# GLOBALS.C
//#
//# ADSP-21535 Embedded Web Server Project
//#
//# (c) ANALOG DEVICES 2002
//#     eDSP Division
//#     Stefan Hacker
//#     23-DEC-2002
//#
//# History
//#     16-APR-2003 HS  release 1.0
//#

#include "ez_lan_types.h"
#include "tcp_ip.h"
#include "http_svr.h"
#include "cf_ide.h"

#define M1 section("L1_data_a")
#define M2 section("L1_data_b")    

///////////////////////////
// SYSTEM specific Vaiables
// IRQ status variables
M1 volatile BYTE           IRQ_DISK;
M1 volatile BYTE           IRQ_LAN;
M1 volatile BYTE           Timeout_DISK;
M1 volatile BYTE           Timeout_LAN;
M1 volatile BYTE           Timeout_SYS;

M1 volatile DWORD          sys_time;
M1 volatile BYTE           sys_day, sys_hour, sys_min, sys_sec;

M1 struct netdev_stats     stats;
M1 volatile BYTE           ATA_ERROR;

///////////////////////////
// CF ATA variables
M1 struct ATA_CMD_BUF      ATA_CMD;
M1 WORD                    ATA_buffer[256];

// raw structures
M1 WORD                    ATA_N_Cyl;
M1 WORD                    ATA_N_Head;
M1 WORD                    ATA_N_Sec;
M1 DWORD                   ATA_N_LBA;

// FAT Structures
M1 struct ATA_DPARA        ATA_P;
M1 struct ATA_DIRENTRY     ATA_D[MAX_NORM_DIR];
M1 struct ATA_DIRSHORT     ATA_DS[MAX_SHORT_DIR];
M1 WORD                    ATA_FirstDataSector;
M1 WORD                    ATA_LBAHidden;
M1 WORD                    ATA_RootDirSectors;
M1 WORD                    ATA_RootDirSecCnt;
M1 WORD                    ATA_FATSz;
M1 WORD                    ATA_TotSec;
M1 WORD                    ATA_DataSec;
M1 WORD                    ATA_CountOfClusters;
M1 BYTE                    ATA_media_present;
M1 BYTE                    ATA_FAT16_detected;

M1 WORD                    ATA_CurFATBuffer[256];
M1 WORD                    ATA_CurFATPtr;
M1 WORD                    ATA_CurClusterBuffer[512];
M1 WORD                    ATA_CurDirEnt;
M1 DWORD                   ATA_CurDirPtr;
M1 DWORD                   ATA_CurFilePtr;
M1 DWORD                   ATA_CurFileSize;


///////////////////////////
// LAN variables
M1 struct SMC_LOCAL        LAN_state;
M1 struct ETH_PACKET       LAN_rx_packet;
M1 struct ETH_PACKET       LAN_tx_packet;
M1 volatile BYTE           LAN_pkt_avail;
M1 volatile BYTE           LAN_error;


///////////////////////////
// TCPIP variables
// LOCAL_IP_2.LOCAL_IP_2.LOCAL_IP_3.LOCAL_IP_4
M1 WORD TCP_Local_IP[2] =
{
    LOCAL_IP_1 | (LOCAL_IP_2 << 8),
    LOCAL_IP_3 | (LOCAL_IP_4 << 8)
};
// SUBNETMASK_1.SUBNETMASK_2.SUBNETMASK_3.SUBNETMASK_4
M1 WORD TCP_SubnetMask[2] =
{
    SUBNETMASK_1 + (SUBNETMASK_2 << 8),
    SUBNETMASK_3 + (SUBNETMASK_4 << 8)
};

// GATEWAY_IP_1.GATEWAY_IP_2.GATEWAY_IP_3.GATEWAY_IP_4
M1 WORD TCP_GatewayIP[2] =
{
    GATEWAY_IP_1 + (GATEWAY_IP_2 << 8),
    GATEWAY_IP_3 + (GATEWAY_IP_4 << 8)
};

// "M1-M2-M3-M4-M5-M6"
M1 BYTE TCP_MyMAC[6] =
{
  MAC_IA_1, MAC_IA_2, MAC_IA_3, MAC_IA_4, MAC_IA_5, MAC_IA_6
};

M1 tTCPStateMachine        TCP_StateMachine;   // TCP_IP Statemachine
M1 tLastFrameSent          TCP_LastFrameSent;  // Retransmission types
M1 WORD                    TCP_ISN_Gen_High;   // upper word of our Initial Sequence Number
// Sequence numbers
M1 DWORD                   TCP_Seq_Nr;         // to send
M1 DWORD                   TCP_UNA_Seq_Nr;     // unacknowledged, incremented after send
M1 DWORD                   TCP_Ack_Nr;         // next seq to receive and ack to send
M1 BYTE                    TCP_Timer;          // inc'd each 262ms
M1 BYTE                    TCP_RetryCounter;   // nr. of retransmissions
// properties of the received frame
M1 WORD                    TCP_Recd_Frame_Length;  // SMSC reported frame length
M1 WORD                    TCP_Recd_Frame_MAC[3];  // 48 bit MAC
M1 WORD                    TCP_Recd_Frame_IP[2];   // 32 bit IP
M1 WORD                    TCP_Recd_IP_Frame_Length; // 16 bit IP packet length
M1 WORD                    TCP_TxFrame1Size;       // bytes to send in TxFrame1
M1 WORD                    TCP_TxFrame2Size;       // bytes to send in TxFrame2
M1 WORD                    TCP_Rx_Data_Count;  // nr. of bytes rec'd
M1 WORD                    TCP_Tx_Data_Count;  // nr. of bytes to send
M1 WORD                    TCP_LocalPort;      // TCP ports
M1 WORD                    TCP_RemotePort;
M1 WORD                    TCP_RemoteMAC[3];   // MAC and IP of current TCP-session
M1 WORD                    TCP_RemoteIP[2];
M1 BYTE                    TCP_SocketStatus;
M1 BYTE                    TCP_TransmitControl;
M1 BYTE                    TCP_Flags;

// make these buffer 32bit access aligned
#pragma align 4
M1 BYTE                    TCP_TxFrame1[TCP_TX_FRAME1_SIZE];
#pragma align 4
M1 BYTE                    TCP_TxFrame2[TCP_TX_FRAME2_SIZE];
#pragma align 4
M1 BYTE                    TCP_RxTCPBuffer[MAX_TCP_RX_SIZE]; // space for incoming TCP-data

///////////////////////////
// HTTP_SVR variables
M1 BYTE                    *HTTP_WebSide;
M1 DWORD                   HTTP_WEBSideSize;
M1 DWORD                   HTTP_BytesToSend;
M1 DWORD                   HTTP_Buffer[375];
M1 BYTE                    HTTP_Status;
M1 BYTE                    HTTP_FileType;

M1 BYTE                    GetResponse[GetResponseSize] =
{
  "HTTP/1.1 200 OK\r\n"            // protocol ver 1.1, code 200, reason OK
  "Content-Type: text/html\r\n"    // type of data we want to send
  "\r\n"                           // indicate end of HTTP-header
};
M1 BYTE                    GetPDFFile[GetPDFFileSize] =
{
  "HTTP/1.1 200 OK\r\n"                 // protocol ver 1.1, code 200, reason OK
  "Content-Type: application/pdf\r\n"   // type of data we want to send
  "\r\n"                                // indicate end of HTTP-header
};

M1 BYTE                    GetJPEGFile[GetPDFFileSize] =
{
  "HTTP/1.1 200 OK\r\n"                 // protocol ver 1.1, code 200, reason OK
  "Content-Type: image/jpeg\r\n"        // type of data we want to send
  "\r\n"                                // indicate end of HTTP-header
};

// end of file