📄 rtl8019as_net420.h
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/*//*/
#ifndef RTL8019_NET_H
#define RTL8019_NET_H
#include <Core/Global.h>
#include "Core/Device.h"
#include <packet32.h>
#include <pcap.h>
#include <ntddndis.h>
#include <stdio.h>
#include <conio.h>
#pragma comment(lib,"ws2_32")
#ifdef WIN32
#ifdef NIC_EXPORTS
#define NIC_API __declspec(dllexport)
#else
#define NIC_API __declspec(dllimport)
#endif
#endif
#ifdef LINUX
#define NIC_API
#endif
namespace DEVICE
{
#define NETCARDINT 0x00010000
#define PAGE_SIZE 256
//for net
#define ETH_IP 0x0800
#define ETH_ARP 0x0806
#define ARP_REQUEST 0x0001
#define ARP_REPLY 0x0002
#define ARP_HARDWARE 0x0001
#define max_num_adapter 10
#pragma pack(push,1)
typedef struct ethdr
{
unsigned char eh_dst[6];
unsigned char eh_src[6];
unsigned short eh_type;
}ETHDR,*PETHDR;
typedef struct arphdr
{
unsigned short arp_hardtype;
unsigned short arp_protype;
unsigned char arp_hardlen;
unsigned char arp_prolen;
unsigned short arp_optype;
unsigned char arp_sendermac[6];
unsigned long arp_senderip;
unsigned char arp_targetmac[6];
unsigned long arp_targetip;
}ARPHDR,*PARPHDR;
typedef struct iphdr
{
unsigned char h_lenver;
unsigned char tos;
unsigned short total_len;
unsigned short ident;
unsigned short frag_and_flags;
unsigned char ttl;
unsigned char proto;
unsigned short checksum;
unsigned int sourceip;
unsigned int destip;
}IPHDR,*PIPHDR;
/*//! for CR register
//judge page number
*/
#define CR_PAGE_NUM 0xc0
#define CR_PAGE_ZERO 0x00
#define CR_PAGE_ONE 0x40
#define CR_PAGE_TWO 0x80
#define CR_PAGE_THREE 0xc0
/* //command for CR */
#define CR_STOP 0x01 /* //置1表示网卡停止工作 */
#define CR_START 0x02 /* //网卡开始工作 */
#define CR_TXP 0x04 /* //置位时发送数据包，发完清0 (虚拟网卡-->以太网) */
#define CR_FINISH 0x20 /* //结束或完成远程DMA */
#define CR_REMOTE_R 0x08 /* //远程DMA读 （虚拟网卡-->模拟机器）*/
#define CR_REMOTE_W 0x10 /* //远程DMA写 （模拟机器-->虚拟网卡）*/
#define CR_SEND 0x18 /* //可代替 远程DMA读 （虚拟网卡-->模拟机器）*/
/* //网卡内部ram的分配*/
#define TPSR_START 0x4000 /* //接受部分位最大帧长度，所以分配6页，共1536字节*/
/* //其余为网卡接收缓冲*/
#define PSTART_START 0x4600
#define PSTOP_STOP 0x6000
/* //! isr register 中断状态寄存器*/
#define ISR_RST 0x80 /* //缓冲溢出,nic复位时置位*/
#define ISR_RDC 0x40 /* //远程DMA完成后置位*/
#define ISR_CNT 0x20 /* //当MSB即大尾网络计数器启动时置位*/
#define ISR_OVW 0x10 /* //缓冲区满，不是溢出，置位*/
#define ISR_TXE 0x08 /* //发送包失败置位*/
#define ISR_RXE 0x04 /* //接受包错误，crc错等，置位*/
#define ISR_PTX 0x02 /* //发送无错*/
#define ISR_PRX 0x01 /* //接受无错*/
/* //! imr 中断屏蔽寄存器，置位为1时就使能isr相应位*/
#define IMR_RST 0x80 /* //缓冲溢出,nic复位时置位*/
#define IMR_RDC 0x40 /* //远程DMA完成后置位*/
#define IMR_CNT 0x20 /* //当MSB即大尾网络计数器启动时置位*/
#define IMR_OVW 0x10 /* //缓冲区满，不是溢出，置位*/
#define IMR_TXE 0x08 /* //发送包失败置位*/
#define IMR_RXE 0x04 /* //接受包错误，crc错等，置位*/
#define IMR_PTX 0x02 /* //发送无错*/
#define IMR_PRX 0x01 /* //接受无错*/
/* //this is the address of the virtual nic's registers*/
#define NET_BASE_ADDRESS 0xfffa0000
#define CR_ADDRESS NET_BASE_ADDRESS
#define DATA_ADDRESS (NET_BASE_ADDRESS+ 0x40)
#define RESET_ADDRESS (NET_BASE_ADDRESS+ 0x7c)
/* //page 0 (write only )*/
/* //接受缓冲，存放的是页号*/
#define PSTART_ADDRESS (NET_BASE_ADDRESS + 0x04)
#define PSTOP_ADDRESS (NET_BASE_ADDRESS + 0x08)
#define BNRY_ADDRESS (NET_BASE_ADDRESS + 0x0c)
#define TPSR_ADDRESS (NET_BASE_ADDRESS + 0x10)
#define TBCR0_ADDRESS (NET_BASE_ADDRESS + 0x14)
#define TBCR1_ADDRESS (NET_BASE_ADDRESS + 0x18)
#define ISR_ADDRESS (NET_BASE_ADDRESS + 0x1c)
#define RSAR0_ADDRESS (NET_BASE_ADDRESS + 0x20)
#define RSAR1_ADDRESS (NET_BASE_ADDRESS + 0x24)
#define RBCR0_ADDRESS (NET_BASE_ADDRESS + 0x28)
#define RBCR1_ADDRESS (NET_BASE_ADDRESS + 0x2c)
/* //接收配置寄存器，初始为 0x04*/
#define RCR_ADDRESS (NET_BASE_ADDRESS + 0x30)
/* //发送配置寄存器，初始为 0x02,后为0x00(即正常发送数据包并加上CRC)*/
#define TCR_ADDRESS (NET_BASE_ADDRESS + 0x34)
/* //数据配置寄存器，初始0x48,表示8位DMA，FIFOS深度8字节，DMA方式*/
#define DCR_ADDRESS (NET_BASE_ADDRESS + 0x38)
#define IMR_ADDRESS (NET_BASE_ADDRESS + 0x3c)
/* page 1 read & write */
/*网卡的物理地址*/
#define PAR0_ADDRESS (NET_BASE_ADDRESS + 0x04)
#define PAR1_ADDRESS (NET_BASE_ADDRESS + 0x08)
#define PAR2_ADDRESS (NET_BASE_ADDRESS + 0x0c)
#define PAR3_ADDRESS (NET_BASE_ADDRESS + 0x10)
#define PAR4_ADDRESS (NET_BASE_ADDRESS + 0x14)
#define PAR5_ADDRESS (NET_BASE_ADDRESS + 0x18)
#define CURR_ADDRESS (NET_BASE_ADDRESS + 0x1c)
/*multicast address 多播地址*/
#define MAR0_ADDRESS (NET_BASE_ADDRESS + 0x20)
#define MAR1_ADDRESS (NET_BASE_ADDRESS + 0x24)
#define MAR2_ADDRESS (NET_BASE_ADDRESS + 0x28)
#define MAR3_ADDRESS (NET_BASE_ADDRESS + 0x2c)
#define MAR4_ADDRESS (NET_BASE_ADDRESS + 0x30)
#define MAR5_ADDRESS (NET_BASE_ADDRESS + 0x34)
#define MAR6_ADDRESS (NET_BASE_ADDRESS + 0x38)
#define MAR7_ADDRESS (NET_BASE_ADDRESS + 0x3c)
/* //this is the structure of the rtl8019as,and we only simulate the part
//of the nic which compatible with ne2000
*/
typedef struct
{
/* // the control register,available in all four page registers */
Core::u8 cr; /* //0x00,read & write,选择寄存器页号，开始接受数据、发送数据命令*/
/* //!page0 registers////////*/
/* //!网络芯片从以太网读数据 */
Core::u8 pstart; /* // 存放ram的页号（0x40－0x5f）, 0x01,write 读在2页 */
Core::u8 pstop; /* // 存放ram的页号（0x40－0x5f）, 0x02,write 读在2页 */
Core::u8 bnry; /* // 读取指针，初始值为 pstart，page0也有此寄存器,0x03,read&write */
/* //curr 在page1,0x07,read only，接受缓冲区写指针，初始值为 pstart */
/* //!网络芯片发数据到以太网 */
Core::u8 tpsr; /* //要发送数据的起始页号 0x04,write 读在2页 */
Core::u8 tbcr0;/* //要发送数据的长度 0x05,write */
Core::u8 tbcr1;/* //the same as tbcr0 0x06,write */
/* //!CPU读/写数据到网络芯片 */
Core::u8 rsar0;/* //存放数据在网络芯片中的起始地址，是0x4000，而不是页号,0x08,write */
Core::u8 rsar1;/* // 0x09,write */
Core::u8 rbcr0;/* //要读写数据的长度 0x0A,write */
Core::u8 rbcr1;/* // 0x0B,write*/
Core::u8 isr;/* //中断状态寄存器， 0x07,write */
Core::u8 imr;/* //屏蔽寄存器 0x0F,write 读在2页 */
Core::u8 rcr; /* //接受配置寄存器 0x0C,write 读在2页 */
Core::u8 tcr; /* //传输配置寄存器 0x0D,write 读在2页*/
Core::u8 dcr; /* //数据配置寄存器 0x0E,write 读在2页 */
/* //!page 1////////*/
Core::u8 par[6]; /* //存放mac地址，最高字节不能是奇数,地址区间 0x01－0x06,read&write */
Core::u8 curr; /* //0x07,read&write，接受缓冲区写指针，初始值为 pstart */
Core::u8 mar[8]; /* //组播地址 */
/* //!page 2 all registers are defined in page 0,都是只读寄存器/// */
/* //!NIC RAM */
Core::u8 nic_ram[32*PAGE_SIZE];/* //only for 8 bit DMA */
}RTL8019as_net;
class NIC_API nic8019: public Core::Device_32Bit { private: RTL8019as_net rtl8019_net;
Core::s32 read_total_count;
Core::s32 read_total_page;
Core::s32 read_offset;
Core::s32 start_page; Core::s32 page_to_read;
Core::s32 write_total_count;
Core::s32 write_offset; Core::s32 nic_state; public: nic8019(); public://inherite fuction virtual void on_create(void){ name_ = "NIC8019"; }
virtual void on_destroy(void){}
virtual void on_reset(void){}
virtual void notify(void){} virtual void on_mapped_memory_read(Core::u32 start, size_t size, Core::Bytecode_Type & buffer);
//!
virtual void on_mapped_memory_write(Core::u32 start, size_t size, Core::Bytecode_Type & buffer); virtual Core::u32 get_state(Core::u32 state=0); public://
void rtl8019_reset(void);
Core::s8 rtl8019_read(Core::u32 addr);
Core::s8 rtl8019_write(Core::u32 addr, Core::s8 data);
Core::s8 read_from_rtl8019();
Core::s8 write_to_rtl8019( Core::s8 data);
void write_cr(Core::s8 data);
//will be called every io cycle determining whether there is any input
Core::s32 is_nic_input();
//fetch data from ethernet
Core::s32 ethernet_input();
//
Core::s32 recv_from_ethernet( Core::u8 *buffer, Core::s32 size);
//
Core::s32 write_to_ethernet(Core::u8 *buffer, Core::s32 size);
void armulator_update_int();
Core::s32 tuntap_input( );
Core::s32 tuntap_output( );
}; typedef nic8019 Nic8019; }
#endif⌨️ 快捷键说明
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