/* ES40 emulator. * Copyright (C) 2007-2008 by the ES40 Emulator Project * * WWW : https://github.com/gdwnldsKSC/es40 * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Although this is not required, the author would appreciate being notified of, * and receiving any modifications you may make to the source code that might serve * the general public. * * Parts of this file based upon GXemul, which is Copyright (C) 2004-2007 * Anders Gavare. All rights reserved. */ /** * \file * Contains the definitions for the emulated DEC 21143 NIC device. * * $Id$ * * X-1.18 Camiel Vanderhoeven 31-MAY-2008 * Changes to include parts of Poco. * * X-1.17 Camiel Vanderhoeven 14-MAR-2008 * Formatting. * * X-1.16 Camiel Vanderhoeven 13-MAR-2008 * Create init(), start_threads() and stop_threads() functions. * * X-1.15 Camiel Vanderhoeven 05-MAR-2008 * Multi-threading version. * * X-1.14 Brian Wheeler 29-FEB-2008 * Compute SROM checksum. Tru64 needs this. * * X-1.13 David Hittner 26-FEB-2008 * Major rewrite. Real internal loopback support, ring queue for * incoming packets, and various other improvements. * * X-1.12 Camiel Vanderhoeven 24-JAN-2008 * Use new CPCIDevice::do_pci_read and CPCIDevice::do_pci_write. * * X-1.11 David Hittner 04-JAN-2008 * MAC address configurable. * * X-1.10 Camiel Vanderhoeven 02-JAN-2008 * Comments. * * X-1.9 Camiel Vanderhoeven 17-DEC-2007 * SaveState file format 2.1 * * X-1.8 Camiel Vanderhoeven 10-DEC-2007 * Use configurator. * * X-1.7 Camiel Vanderhoeven 2-DEC-2007 * Receive network data in a separate thread. * * X-1.6 Camiel Vanderhoeven 1-DEC-2007 * Moved inclusion of StdAfx.h outside conditional block; necessary * for using precompiled headers in Visual C++. * * X-1.5 Camiel Vanderhoeven 17-NOV-2007 * Don't define REMOTE before including pcap.h; we want to be * compatible. * * X-1.4 Camiel Vanderhoeven 17-NOV-2007 * Cleanup. * * X-1.3 Camiel Vanderhoeven 16-NOV-2007 * BPF filter used for perfect filtering. * * X-1.2 Camiel Vanderhoeven 15-NOV-2007 * Use pcap for network access. * * X-1.1 Camiel Vanderhoeven 14-NOV-2007 * Initial version for ES40 emulator. **/ #if !defined(INCLUDED_DEC21143_H_) #define INCLUDED_DEC21143_H_ #include "PCIDevice.h" #include "DEC21143_mii.h" #include "DEC21143_tulipreg.h" #if defined(WIN32) #define HAVE_REMOTE #include #else #include #endif #include "Ethernet.h" #include "base/Semaphore.h" #if defined(WIN32) typedef int bpf_int32; typedef unsigned int bpf_u_int32; /* * The instruction data structure. */ struct bpf_insn { unsigned short code; unsigned char jt; unsigned char jf; bpf_u_int32 k; }; /* * Structure for "pcap_compile()", "pcap_setfilter()", etc.. */ struct bpf_program { unsigned int bf_len; struct bpf_insn *bf_insns; }; typedef struct pcap_if pcap_if_t; # define PCAP_ERRBUF_SIZE 256 struct pcap_pkthdr { struct timeval ts; bpf_u_int32 caplen; bpf_u_int32 len; }; struct pcap_if { struct pcap_if *next; char *name; char *description; void *addresses; bpf_u_int32 flags; }; struct pcap_send_queue { unsigned int maxlen; /* Maximum size of the queue, in bytes. This variable contains the size of the buffer field. */ unsigned int len; /* Current size of the queue, in bytes. */ char *buffer; /* Buffer containing the packets to be sent. */ }; typedef struct pcap_send_queue pcap_send_queue; typedef void (*pcap_handler)(unsigned char *user, const struct pcap_pkthdr *h, const unsigned char *bytes); typedef struct pcap pcap_t; typedef struct pcap_dumper pcap_dumper_t; typedef struct pcap_if pcap_if_t; typedef struct pcap_addr pcap_addr_t; #endif /** * \brief Emulated DEC 21143 NIC device. * * Documentation consulted: * - 21143 PCI/Cardbus 10/100Mb/s Ethernet LAN Controller Hardware Reference Manual [HRM]. (http://download.intel.com/design/network/manuals/27807401.pdf) * - Tru64 Device Driver Kit Version 2 (Ethernet sample = tu driver!) [T64]. (http://h30097.www3.hp.com/docs/dev_doc/DOCUMENTATION/HTML/dev_docs_r2.html) * . **/ class CDEC21143 : public CPCIDevice, public CRunnable { public: virtual int SaveState(FILE* f); virtual int RestoreState(FILE* f); void instant_tick(); // void interrupt(int number); virtual void check_state(); virtual void WriteMem_Bar(int func, int bar, u32 address, int dsize, u32 data); virtual u32 ReadMem_Bar(int func, int bar, u32 address, int dsize); CDEC21143(CConfigurator* confg, class CSystem* c, int pcibus, int pcidev); virtual ~CDEC21143(); virtual void ResetPCI(); void ResetNIC(); void SetupFilter(); void receive_process(); virtual void run(); virtual void init(); virtual void start_threads(); virtual void stop_threads(); void update_irq(); private: static int nic_num; CThread* myThread; bool StopThread; CSemaphore mySemaphore; u32 nic_read(u32 address, int dsize); void nic_write(u32 address, int dsize, u32 data); void mii_access(uint32_t oldreg, uint32_t idata); void srom_access(uint32_t oldreg, uint32_t idata); void complete_sia_autoneg(); void trace_packet(const char* dir, const u8* frame, int len); int dec21143_rx(); int dec21143_tx(); void set_tx_state(int tx_state); void set_rx_state(int rx_state); inline u32 bswap32_local(u32 v); CPacketQueue* rx_queue; pcap_t* fp; struct bpf_program fcode; bool calc_crc; bool trace_packets; /// The state structure contains all elements that need to be saved to the statefile. struct SNIC_state { bool irq_was_asserted; /**< remember state of IRQ */ u8 mac[6]; /**< ethernet address */ u8 setup_filter[192]; /**< filter for perfect filtering */ int descr_skip; // Descriptor Skip Length [DSL] (in bytes) /// SROM emulation struct SNIC_srom { u8 data[1 << (7)]; int curbit; int opcode; int opcode_has_started; int addr; } srom; /// MII PHY emulation struct SNIC_mii { u16 phy_reg[MII_NPHY * 32]; int state; int bit; int opcode; int phyaddr; int regaddr; } mii; u32 reg[32]; /**< 21143 registers */ /// Internal TX state struct SNIC_tx { u32 cur_addr; unsigned char* cur_buf; int cur_buf_len; bool suspend; } tx; /// Internal RX state struct SNIC_rx { u32 cur_addr; unsigned char* cur_buf; int cur_buf_len; int cur_offset; eth_packet current; } rx; } state; }; #endif // !defined(INCLUDED_DEC21143_H_)