--- /dev/null
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Matt Wojcik
+ * Copyright (c) 2008, Peter Kamm
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Matt Wojcik
+ * Author: Peter Kamm
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#ifndef GEEKOS_NE2K_H
+#define GEEKOS_NE2K_H
+
+#include <geekos/malloc.h>
+
+#define NE2K_PAGE0 0x00
+#define NE2K_PAGE1 0x40
+#define NE2K_PAGE2 0x80
+#define NE2K_PAGE3 0xc0
+
+#define NE2K_BASE_ADDR 0xc100 /* Starting address of the card */
+#define NE2K_CR NE2K_BASE_ADDR /* Command register */
+#define NE2K_DATAPORT (NE2K_CR + 0x10)
+#define NE2K_RESET (NE2K_CR + 0x1f)
+
+/* Page 0 register offsets */
+#define NE2K CLDA0 (NE2K_CR + 0x01)
+#define NE2K_PSTART (NE2K_CR + 0x01) /* Page start register */
+#define NE2K_CLDA1 (NE2K_CR + 0x02)
+#define NE2K_PSTOP (NE2K_CR + 0x02) /* Page stop register */
+#define NE2K_BNRY (NE2K_CR + 0x03) /* Boundary register */
+#define NE2K_TSR (NE2K_CR + 0x04)
+#define NE2K_TPSR (NE2K_CR + 0x04)
+#define NE2K_NCR (NE2K_CR + 0x05)
+#define NE2K_TBCR0 (NE2K_CR + 0x05)
+#define NE2K_FIFO (NE2K_CR + 0x06)
+#define NE2K_TBCR1 (NE2K_CR + 0x06)
+#define NE2K_ISR (NE2K_CR + 0x07) /* Interrupt status register */
+#define NE2K_CRDA0 (NE2K_CR + 0x08)
+#define NE2K_RSAR0 (NE2K_CR + 0x08) /* Remote start address registers */
+#define NE2K_CRDA1 (NE2K_CR + 0x09)
+#define NE2K_RSAR1 (NE2K_CR + 0x09)
+#define NE2K_RBCR0 (NE2K_CR + 0x0a) /* Remote byte count registers */
+#define NE2K_RBCR1 (NE2K_CR + 0x0b)
+#define NE2K_RSR (NE2K_CR + 0x0c)
+#define NE2K_RCR (NE2K_CR + 0x0c) /* Receive configuration register */
+#define NE2K_CNTR0 (NE2K_CR + 0x0d)
+#define NE2K_TCR (NE2K_CR + 0x0d) /* Transmit configuration register */
+#define NE2K_CNTR1 (NE2K_CR + 0x0e)
+#define NE2K_DCR (NE2K_CR + 0x0e) /* Data configuration register */
+#define NE2K_CNTR2 (NE2K_CR + 0x0f)
+#define NE2K_IMR (NE2K_CR + 0x0f) /* Interrupt mask register */
+
+/* Page 1 register offsets */
+#define NE2K_PAR0 (NE2K_CR + 0x01)
+#define NE2K_PAR1 (NE2K_CR + 0x02)
+#define NE2K_PAR2 (NE2K_CR + 0x03)
+#define NE2K_PAR3 (NE2K_CR + 0x04)
+#define NE2K_PAR4 (NE2K_CR + 0x05)
+#define NE2K_PAR5 (NE2K_CR + 0x06)
+#define NE2K_CURR (NE2K_CR + 0x07)
+#define NE2K_MAR0 (NE2K_CR + 0x08)
+#define NE2K_MAR1 (NE2K_CR + 0x09)
+#define NE2K_MAR2 (NE2K_CR + 0x0a)
+#define NE2K_MAR3 (NE2K_CR + 0x0b)
+#define NE2K_MAR4 (NE2K_CR + 0x0c)
+#define NE2K_MAR5 (NE2K_CR + 0x0d)
+#define NE2K_MAR6 (NE2K_CR + 0x0e)
+#define NE2K_MAR7 (NE2K_CR + 0x0f)
+
+#define NE2K_IRQ 11 /* Interrupt channel */
+
+
+/* Physical Address of Network Card */
+#define PHY_ADDR1 0x52
+#define PHY_ADDR2 0x54
+#define PHY_ADDR3 0x00
+#define PHY_ADDR4 0x12
+#define PHY_ADDR5 0x34
+#define PHY_ADDR6 0x58
+
+
+struct NE2K_REGS {
+ uchar_t cr;
+ uchar_t isr;
+ uchar_t imr;
+ uchar_t dcr;
+ uchar_t tcr;
+ uchar_t tsr;
+ uchar_t rcr;
+ uchar_t rsr;
+};
+
+struct _CR { //COMMAND REG
+ uint_t stp: 1; //STOP- software reset
+ uint_t sta: 1; //START- activates NIC
+ uint_t txp: 1; //TRANSMIT- set to send
+ uint_t rd: 3; //REMOTE DMA
+ uint_t ps: 2; //PAGE SELECT
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct _ISR{ //INTERRUPT STATUS REG
+ uint_t prx: 1; //PACKET RECIEVED
+ uint_t ptx: 1; //PACKET TRANSMITTED
+ uint_t rxe: 1; //TRANSMIT ERROR
+ uint_t txe: 1; //RECEIVE ERROR
+ uint_t ovw: 1; //OVERWRITE WARNING
+ uint_t cnt: 1; //COUNTER OVERFLOW
+ uint_t rdc: 1; //REMOTE DMA COMPLETE
+ uint_t rst: 1; //RESET STATUS
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct _IMR { //INTERRUPT MASK REG
+ uint_t prxe: 1; //PACKET RX INTRPT
+ uint_t ptxe: 1; //PACKET TX INTRPT
+ uint_t rxee: 1; //RX ERROR INTRPT
+ uint_t txee: 1; //TX ERROR INTRPt
+ uint_t ovwe: 1; //OVERWRITE WARNING INTRPT
+ uint_t cnte: 1; //COUNTER OVERFLOW INTRPT
+ uint_t rdce: 1; //DMA COMLETE INTRPT
+ uint_t rsvd: 1;
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct _DCR { //DATA CONFIG REGISTER
+ uint_t wts: 1; //WORD TRANSFER SELECT
+ uint_t bos: 1; //BYTE ORDER SELECT
+ uint_t las: 1; //LONG ADDR SELECT
+ uint_t ls: 1; //LOOPBACK SELECT
+ uint_t arm: 1; //AUTO-INITIALIZE REMOTE
+ uint_t ft: 2; //FIFO THRESH SELECT
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct _TCR { //TX CONFIG REGISTER
+ uint_t crc: 1; //INHIBIT CRC
+ uint_t lb: 2; //ENCODED LOOPBACK
+ uint_t atd: 1; //AUTO TRANSMIT
+ uint_t ofst: 1; //COLLISION OFFSET ENABLE
+ uint_t rsvd: 3;
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct _TSR {
+ uint_t ptx: 1; //PACKET TX
+ uint_t rsvd: 1;
+ uint_t col: 1; //TX COLLIDED
+ uint_t abt: 1; //TX ABORTED
+ uint_t crs: 1; //CARRIER SENSE LOST
+ uint_t fu: 1; //FIFO UNDERRUN
+ uint_t cdh: 1; //CD HEARTBEAT
+ uint_t owc: 1; //OUT OF WINDOW COLLISION
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct _RCR { //RECEIVE CONFIGURATION REGISTER
+ uint_t sep: 1; //SAVE ERRORED PACKETS
+ uint_t ar: 1; //ACCEPT RUNT PACKETS
+ uint_t ab: 1; //ACCEPT BROADCAST
+ uint_t am: 1; //ACCEPT MULTICAST
+ uint_t pro: 1; //PROMISCUOUS PHYSICAL
+ uint_t mon: 1; //MONITOR MODE
+ uint_t rsvd: 2;
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct _RSR { //RECEIVE STATUS REG
+ uint_t prx: 1; //PACKET RX INTACT
+ uint_t crc: 1; //CRC ERROR
+ uint_t fae: 1; //FRAME ALIGNMENT ERROR
+ uint_t fo: 1; //FIFO OVERRUN
+ uint_t mpa: 1; //MISSED PACKET
+ uint_t phy: 1; //PHYSICAL/MULTICAST ADDR
+ uint_t dis: 1; //RX DISABLED
+ uint_t dfr: 1; //DEFERRING
+}__attribute__((__packed__)) __attribute__((__aligned__(1)));
+
+struct NE2K_Packet_Info {
+ uchar_t status;
+ uint_t size;
+ uchar_t src[6];
+ uchar_t dest[6];
+};
+
+int Init_Ne2k();
+int NE2K_Receive();
+int NE2K_Transmit(uint_t size);
+int NE2K_Send_Packet(uchar_t *packet, uint_t size);
+int NE2K_Send(uchar_t src[], uchar_t dest[], uint_t type, uchar_t *data, uint_t size);
+
+#endif /* GEEKOS_NE2K_H */
