if_ex.c revision 55882
121769Sjkh/* 221769Sjkh * Copyright (c) 1996, Javier Mart�n Rueda (jmrueda@diatel.upm.es) 321769Sjkh * All rights reserved. 421769Sjkh * 521769Sjkh * Redistribution and use in source and binary forms, with or without 621769Sjkh * modification, are permitted provided that the following conditions 721769Sjkh * are met: 821769Sjkh * 1. Redistributions of source code must retain the above copyright 921769Sjkh * notice unmodified, this list of conditions, and the following 1021769Sjkh * disclaimer. 1121769Sjkh * 2. Redistributions in binary form must reproduce the above copyright 1221769Sjkh * notice, this list of conditions and the following disclaimer in the 1321769Sjkh * documentation and/or other materials provided with the distribution. 1421769Sjkh * 1521769Sjkh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1621769Sjkh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1721769Sjkh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1821769Sjkh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1921769Sjkh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2021769Sjkh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2121769Sjkh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2221769Sjkh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2321769Sjkh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2421769Sjkh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2521769Sjkh * SUCH DAMAGE. 2629877Smsmith * 2750477Speter * $FreeBSD: head/sys/dev/ex/if_ex.c 55882 2000-01-13 06:52:51Z mdodd $ 2852286Smdodd * 2952286Smdodd * MAINTAINER: Matthew N. Dodd <winter@jurai.net> 3052286Smdodd * <mdodd@FreeBSD.org> 3121769Sjkh */ 3221769Sjkh 3321769Sjkh/* 3429877Smsmith * Intel EtherExpress Pro/10, Pro/10+ Ethernet driver 3521769Sjkh * 3621769Sjkh * Revision history: 3721769Sjkh * 3821769Sjkh * 30-Oct-1996: first beta version. Inet and BPF supported, but no multicast. 3921769Sjkh */ 4021769Sjkh 4121769Sjkh#include "ex.h" 4221769Sjkh#if NEX > 0 4321769Sjkh 4421769Sjkh#include <sys/param.h> 4521769Sjkh#include <sys/systm.h> 4652286Smdodd#include <sys/kernel.h> 4721769Sjkh#include <sys/conf.h> 4824204Sbde#include <sys/sockio.h> 4921769Sjkh#include <sys/mbuf.h> 5021769Sjkh#include <sys/socket.h> 5121769Sjkh 5252286Smdodd#include <sys/module.h> 5352286Smdodd#include <sys/bus.h> 5452286Smdodd 5552286Smdodd#include <machine/bus.h> 5652286Smdodd#include <machine/resource.h> 5752286Smdodd#include <sys/rman.h> 5852286Smdodd 5950026Smdodd#include <net/ethernet.h> 6021769Sjkh#include <net/if.h> 6121769Sjkh 6250026Smdodd#include <netinet/in.h> 6350026Smdodd#include <netinet/if_ether.h> 6450026Smdodd 6521769Sjkh#include <net/bpf.h> 6621769Sjkh 6721769Sjkh#include <machine/clock.h> 6821769Sjkh 6952286Smdodd#include <isa/isavar.h> 7052286Smdodd#include <isa/pnpvar.h> 7152286Smdodd 7221769Sjkh#include <i386/isa/if_exreg.h> 7321769Sjkh 7421769Sjkh#ifdef EXDEBUG 7552286Smdodd# define Start_End 1 7652286Smdodd# define Rcvd_Pkts 2 7752286Smdodd# define Sent_Pkts 4 7852286Smdodd# define Status 8 7921769Sjkhstatic int debug_mask = 0; 8021769Sjkhstatic int exintr_count = 0; 8152286Smdodd# define DODEBUG(level, action) if (level & debug_mask) action 8221769Sjkh#else 8352286Smdodd# define DODEBUG(level, action) 8421769Sjkh#endif 8521769Sjkh 8621769Sjkh#define Conn_BNC 1 8721769Sjkh#define Conn_TPE 2 8821769Sjkh#define Conn_AUI 3 8921769Sjkh 9052286Smdodd#define CARD_TYPE_EX_10 1 9152286Smdodd#define CARD_TYPE_EX_10_PLUS 2 9252286Smdodd 9321769Sjkhstruct ex_softc { 9452286Smdodd struct arpcom arpcom; /* Ethernet common data */ 9552286Smdodd 9652286Smdodd device_t dev; 9752286Smdodd struct resource *ioport; 9852286Smdodd struct resource *irq; 9952286Smdodd 10052286Smdodd u_int iobase; /* I/O base address. */ 10152286Smdodd u_short irq_no; /* IRQ number. */ 10252286Smdodd 10352286Smdodd char * irq2ee; /* irq <-> internal */ 10452286Smdodd u_char * ee2irq; /* representation conversion */ 10552286Smdodd 10652286Smdodd u_short connector; /* Connector type. */ 10752286Smdodd 10852286Smdodd u_int mem_size; /* Total memory size, in bytes. */ 10952286Smdodd u_int rx_mem_size; /* Rx memory size (by default, */ 11052286Smdodd /* first 3/4 of total memory). */ 11152286Smdodd 11252286Smdodd u_int rx_lower_limit; /* Lower and upper limits of */ 11352286Smdodd u_int rx_upper_limit; /* receive buffer. */ 11452286Smdodd 11552286Smdodd u_int rx_head; /* Head of receive ring buffer. */ 11652286Smdodd u_int tx_mem_size; /* Tx memory size (by default, */ 11752286Smdodd /* last quarter of total memory).*/ 11852286Smdodd 11952286Smdodd u_int tx_lower_limit; /* Lower and upper limits of */ 12052286Smdodd u_int tx_upper_limit; /* transmit buffer. */ 12152286Smdodd 12252286Smdodd u_int tx_head; /* Head and tail of */ 12352286Smdodd u_int tx_tail; /* transmit ring buffer. */ 12452286Smdodd 12552286Smdodd u_int tx_last; /* Pointer to beginning of last */ 12652286Smdodd /* frame in the chain. */ 12721769Sjkh}; 12821769Sjkh 12952286Smdoddstatic char irq2eemap[] = 13052286Smdodd { -1, -1, 0, 1, -1, 2, -1, -1, -1, 0, 3, 4, -1, -1, -1, -1 }; 13152286Smdoddstatic u_char ee2irqmap[] = 13252286Smdodd { 9, 3, 5, 10, 11, 0, 0, 0 }; 13321769Sjkh 13452286Smdoddstatic char plus_irq2eemap[] = 13552286Smdodd { -1, -1, -1, 0, 1, 2, -1, 3, -1, 4, 5, 6, 7, -1, -1, -1 }; 13652286Smdoddstatic u_char plus_ee2irqmap[] = 13752286Smdodd { 3, 4, 5, 7, 9, 10, 11, 12 }; 13821769Sjkh 13952286Smdodd/* Bus Front End Functions */ 14055882Smdoddstatic void ex_isa_identify __P((driver_t *, device_t)); 14152286Smdoddstatic int ex_isa_probe __P((device_t)); 14252286Smdoddstatic int ex_attach __P((device_t)); 14321769Sjkh 14452286Smdodd/* Network Interface Functions */ 14552286Smdoddstatic void ex_init __P((void *)); 14652286Smdoddstatic void ex_start __P((struct ifnet *)); 14752286Smdoddstatic int ex_ioctl __P((struct ifnet *, u_long, caddr_t)); 14852286Smdoddstatic void ex_watchdog __P((struct ifnet *)); 14921769Sjkh 15052286Smdoddstatic void ex_stop __P((struct ex_softc *)); 15152286Smdoddstatic void ex_reset __P((struct ex_softc *)); 15252286Smdodd 15352286Smdoddstatic driver_intr_t exintr; 15452286Smdoddstatic void ex_tx_intr __P((struct ex_softc *)); 15552286Smdoddstatic void ex_rx_intr __P((struct ex_softc *)); 15652286Smdodd 15752286Smdoddstatic u_short eeprom_read __P((int, int)); 15852286Smdodd 15952286Smdoddstatic device_method_t ex_methods[] = { 16052286Smdodd /* Device interface */ 16155882Smdodd DEVMETHOD(device_identify, ex_isa_identify), 16252286Smdodd DEVMETHOD(device_probe, ex_isa_probe), 16352286Smdodd DEVMETHOD(device_attach, ex_attach), 16452286Smdodd 16552286Smdodd { 0, 0 } 16652286Smdodd}; 16752286Smdodd 16852286Smdoddstatic driver_t ex_driver = { 16921769Sjkh "ex", 17052286Smdodd ex_methods, 17152286Smdodd sizeof(struct ex_softc), 17221769Sjkh}; 17321769Sjkh 17452286Smdoddstatic devclass_t ex_devclass; 17552286Smdodd 17652286SmdoddDRIVER_MODULE(ex, isa, ex_driver, ex_devclass, 0, 0); 17752286Smdodd 17852286Smdoddstatic struct isa_pnp_id ex_ids[] = { 17952286Smdodd { 0x3110d425, NULL }, /* INT1031 */ 18052286Smdodd { 0x3010d425, NULL }, /* INT1030 */ 18152286Smdodd { 0, NULL }, 18252286Smdodd}; 18352286Smdodd 18421769Sjkhstatic int look_for_card(u_int iobase) 18521769Sjkh{ 18621769Sjkh int count1, count2; 18721769Sjkh 18821769Sjkh /* 18921769Sjkh * Check for the i82595 signature, and check that the round robin 19021769Sjkh * counter actually advances. 19121769Sjkh */ 19221769Sjkh if (((count1 = inb(iobase + ID_REG)) & Id_Mask) != Id_Sig) 19321769Sjkh return(0); 19421769Sjkh count2 = inb(iobase + ID_REG); 19521769Sjkh count2 = inb(iobase + ID_REG); 19621769Sjkh count2 = inb(iobase + ID_REG); 19752286Smdodd 19821769Sjkh return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits)); 19921769Sjkh} 20021769Sjkh 20152286Smdoddstatic int 20252286Smdoddex_get_media (u_int32_t iobase) 20352286Smdodd{ 20452286Smdodd int tmp; 20521769Sjkh 20652286Smdodd outb(iobase + CMD_REG, Bank2_Sel); 20752286Smdodd tmp = inb(iobase + REG3); 20852286Smdodd outb(iobase + CMD_REG, Bank0_Sel); 20952286Smdodd 21052286Smdodd if (tmp & TPE_bit) 21152286Smdodd return(Conn_TPE); 21252286Smdodd if (tmp & BNC_bit) 21352286Smdodd return(Conn_BNC); 21452286Smdodd 21552286Smdodd return (Conn_AUI); 21652286Smdodd} 21752286Smdodd 21852286Smdoddstatic void 21952286Smdoddex_get_address (u_int32_t iobase, u_char *enaddr) 22021769Sjkh{ 22152286Smdodd u_int16_t eaddr_tmp; 22221769Sjkh 22352286Smdodd eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Lo); 22452286Smdodd enaddr[5] = eaddr_tmp & 0xff; 22552286Smdodd enaddr[4] = eaddr_tmp >> 8; 22652286Smdodd eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Mid); 22752286Smdodd enaddr[3] = eaddr_tmp & 0xff; 22852286Smdodd enaddr[2] = eaddr_tmp >> 8; 22952286Smdodd eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Hi); 23052286Smdodd enaddr[1] = eaddr_tmp & 0xff; 23152286Smdodd enaddr[0] = eaddr_tmp >> 8; 23252286Smdodd 23352286Smdodd return; 23452286Smdodd} 23521769Sjkh 23652286Smdoddstatic int 23752286Smdoddex_card_type (u_char *enaddr) 23852286Smdodd{ 23952286Smdodd if ((enaddr[0] == 0x00) && (enaddr[1] == 0xA0) && (enaddr[2] == 0xC9)) 24052286Smdodd return (CARD_TYPE_EX_10_PLUS); 24152286Smdodd 24252286Smdodd return (CARD_TYPE_EX_10); 24352286Smdodd} 24452286Smdodd 24555882Smdodd/* 24655882Smdodd * Non-destructive identify. 24755882Smdodd */ 24855882Smdoddstatic void 24955882Smdoddex_isa_identify (driver_t *driver, device_t parent) 25055882Smdodd{ 25155882Smdodd device_t child; 25255882Smdodd u_int32_t ioport; 25355882Smdodd u_char enaddr[6]; 25455882Smdodd u_int irq; 25555882Smdodd int tmp; 25655882Smdodd const char * desc; 25755882Smdodd 25855882Smdodd for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) { 25955882Smdodd 26055882Smdodd /* No board found at address */ 26155882Smdodd if (!look_for_card(ioport)) { 26255882Smdodd continue; 26355882Smdodd } 26455882Smdodd 26555882Smdodd /* Board in PnP mode */ 26655882Smdodd if (eeprom_read(ioport, 0) & 0x01) { 26755882Smdodd continue; 26855882Smdodd } 26955882Smdodd 27055882Smdodd bzero(enaddr, sizeof(enaddr)); 27155882Smdodd 27255882Smdodd /* Reset the card. */ 27355882Smdodd outb(ioport + CMD_REG, Reset_CMD); 27455882Smdodd DELAY(400); 27555882Smdodd 27655882Smdodd ex_get_address(ioport, enaddr); 27755882Smdodd tmp = eeprom_read(ioport, EE_IRQ_No) & IRQ_No_Mask; 27855882Smdodd 27955882Smdodd /* work out which set of irq <-> internal tables to use */ 28055882Smdodd if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) { 28155882Smdodd irq = plus_ee2irqmap[tmp]; 28255882Smdodd desc = "Intel Pro/10+"; 28355882Smdodd } else { 28455882Smdodd irq = ee2irqmap[tmp]; 28555882Smdodd desc = "Intel Pro/10"; 28655882Smdodd } 28755882Smdodd 28855882Smdodd child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1); 28955882Smdodd device_set_desc_copy(child, desc); 29055882Smdodd device_set_driver(child, driver); 29155882Smdodd bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1); 29255882Smdodd bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE); 29355882Smdodd } 29455882Smdodd 29555882Smdodd return; 29655882Smdodd} 29755882Smdodd 29852286Smdoddstatic int 29952286Smdoddex_isa_probe(device_t dev) 30052286Smdodd{ 30152286Smdodd u_int iobase; 30252286Smdodd u_int irq; 30352286Smdodd char * irq2ee; 30452286Smdodd u_char * ee2irq; 30552286Smdodd u_char enaddr[6]; 30652286Smdodd int tmp; 30752286Smdodd int error; 30852286Smdodd 30952286Smdodd DODEBUG(Start_End, printf("ex_probe: start\n");); 31052286Smdodd 31152286Smdodd /* Check isapnp ids */ 31252286Smdodd error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids); 31352286Smdodd 31452286Smdodd /* If the card had a PnP ID that didn't match any we know about */ 31552286Smdodd if (error == ENXIO) { 31652286Smdodd return(error); 31752286Smdodd } 31852286Smdodd 31952286Smdodd /* If we had some other problem. */ 32052286Smdodd if (!(error == 0 || error == ENOENT)) { 32152286Smdodd return(error); 32252286Smdodd } 32352286Smdodd 32452286Smdodd iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0); 32555882Smdodd if (iobase && !look_for_card(iobase)) { 32655882Smdodd printf("ex: no card found at 0x%03x\n", iobase); 32755882Smdodd return(ENXIO); 32821769Sjkh } 32921769Sjkh 33021769Sjkh /* 33121769Sjkh * Reset the card. 33221769Sjkh */ 33321769Sjkh outb(iobase + CMD_REG, Reset_CMD); 33429313Smsmith DELAY(400); 33521769Sjkh 33652286Smdodd ex_get_address(iobase, enaddr); 33752286Smdodd 33852286Smdodd /* work out which set of irq <-> internal tables to use */ 33952286Smdodd if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) { 34052286Smdodd irq2ee = plus_irq2eemap; 34152286Smdodd ee2irq = plus_ee2irqmap; 34252286Smdodd } else { 34352286Smdodd irq2ee = irq2eemap; 34452286Smdodd ee2irq = ee2irqmap; 34552286Smdodd } 34652286Smdodd 34752286Smdodd tmp = eeprom_read(iobase, EE_IRQ_No) & IRQ_No_Mask; 34852286Smdodd irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0); 34952286Smdodd 35052286Smdodd if (irq > 0) { 35155882Smdodd /* This will happen if board is in PnP mode. */ 35252286Smdodd if (ee2irq[tmp] != irq) { 35352286Smdodd printf("ex: WARNING: board's EEPROM is configured" 35452286Smdodd " for IRQ %d, using %d\n", 35552286Smdodd ee2irq[tmp], irq); 35652286Smdodd } 35752286Smdodd } else { 35852286Smdodd irq = ee2irq[tmp]; 35952286Smdodd bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1); 36052286Smdodd } 36152286Smdodd 36252286Smdodd if (irq == 0) { 36352286Smdodd printf("ex: invalid IRQ.\n"); 36452286Smdodd return(ENXIO); 36552286Smdodd } 36652286Smdodd 36752286Smdodd DODEBUG(Start_End, printf("ex_probe: finish\n");); 36852286Smdodd 36952286Smdodd return(0); 37052286Smdodd} 37152286Smdodd 37252286Smdodd 37352286Smdoddint ex_attach(device_t dev) 37452286Smdodd{ 37552286Smdodd struct ex_softc * sc = device_get_softc(dev); 37652286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 37752286Smdodd int unit = device_get_unit(dev); 37852286Smdodd int error; 37952286Smdodd int rid; 38052286Smdodd void * ih; 38152286Smdodd 38252286Smdodd DODEBUG(Start_End, device_printf(dev, "start\n");); 38352286Smdodd 38452286Smdodd rid = 0; 38552286Smdodd sc->ioport = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 38652286Smdodd 0, ~0, 1, RF_ACTIVE); 38752286Smdodd 38852286Smdodd if (!sc->ioport) { 38952286Smdodd device_printf(dev, "No I/O space?!\n"); 39052286Smdodd goto bad; 39152286Smdodd } 39252286Smdodd 39352286Smdodd rid = 0; 39452286Smdodd sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 39552286Smdodd 0, ~0, 1, RF_ACTIVE); 39652286Smdodd 39752286Smdodd if (!sc->irq) { 39852286Smdodd device_printf(dev, "No IRQ?!\n"); 39952286Smdodd goto bad; 40052286Smdodd } 40152286Smdodd 40252286Smdodd error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 40352842Smdodd exintr, (void *)sc, &ih); 40452286Smdodd 40552286Smdodd if (error) { 40652286Smdodd device_printf(dev, "bus_setup_intr() failed!\n"); 40752286Smdodd goto bad; 40852286Smdodd } 40952286Smdodd 41021769Sjkh /* 41121769Sjkh * Fill in several fields of the softc structure: 41221769Sjkh * - I/O base address. 41321769Sjkh * - Hardware Ethernet address. 41421769Sjkh * - IRQ number (if not supplied in config file, read it from EEPROM). 41521769Sjkh * - Connector type. 41621769Sjkh */ 41752286Smdodd sc->dev = dev; 41852286Smdodd sc->iobase = rman_get_start(sc->ioport); 41952286Smdodd sc->irq_no = rman_get_start(sc->irq); 42029877Smsmith 42152286Smdodd ex_get_address(sc->iobase, sc->arpcom.ac_enaddr); 42252286Smdodd 42329877Smsmith /* work out which set of irq <-> internal tables to use */ 42452286Smdodd if (ex_card_type(sc->arpcom.ac_enaddr) == CARD_TYPE_EX_10_PLUS) { 42529877Smsmith sc->irq2ee = plus_irq2eemap; 42629877Smsmith sc->ee2irq = plus_ee2irqmap; 42752286Smdodd } else { 42829877Smsmith sc->irq2ee = irq2eemap; 42929877Smsmith sc->ee2irq = ee2irqmap; 43029877Smsmith } 43129877Smsmith 43252286Smdodd sc->connector = ex_get_media(sc->iobase); 43321769Sjkh sc->mem_size = CARD_RAM_SIZE; /* XXX This should be read from the card itself. */ 43421769Sjkh 43521769Sjkh /* 43621769Sjkh * Initialize the ifnet structure. 43721769Sjkh */ 43821769Sjkh ifp->if_softc = sc; 43921769Sjkh ifp->if_unit = unit; 44021769Sjkh ifp->if_name = "ex"; 44121769Sjkh ifp->if_init = ex_init; 44221769Sjkh ifp->if_output = ether_output; 44321769Sjkh ifp->if_start = ex_start; 44421769Sjkh ifp->if_ioctl = ex_ioctl; 44521769Sjkh ifp->if_watchdog = ex_watchdog; 44621769Sjkh ifp->if_mtu = ETHERMTU; 44752286Smdodd ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST 44852286Smdodd /* XXX not done yet. | IFF_MULTICAST */; 44921769Sjkh 45021769Sjkh /* 45121769Sjkh * Attach the interface. 45221769Sjkh */ 45321769Sjkh if_attach(ifp); 45421769Sjkh ether_ifattach(ifp); 45521769Sjkh 45652286Smdodd if (ex_card_type(sc->arpcom.ac_enaddr) == CARD_TYPE_EX_10_PLUS) { 45752286Smdodd printf("ex%d: Intel EtherExpress Pro/10+, address %6D, connector ", unit, sc->arpcom.ac_enaddr, ":"); 45829313Smsmith } else { 45952286Smdodd printf("ex%d: Intel EtherExpress Pro/10, address %6D, connector ", unit, sc->arpcom.ac_enaddr, ":"); 46029313Smsmith } 46121769Sjkh switch(sc->connector) { 46221769Sjkh case Conn_TPE: printf("TPE\n"); break; 46321769Sjkh case Conn_BNC: printf("BNC\n"); break; 46421769Sjkh case Conn_AUI: printf("AUI\n"); break; 46521769Sjkh default: printf("???\n"); 46621769Sjkh } 46721769Sjkh 46821769Sjkh /* 46921769Sjkh * If BPF is in the kernel, call the attach for it 47021769Sjkh */ 47121769Sjkh bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); 47221769Sjkh DODEBUG(Start_End, printf("ex_attach%d: finish\n", unit);); 47346347Speter sc->arpcom.ac_if.if_snd.ifq_maxlen = ifqmaxlen; 47452286Smdodd 47552286Smdodd return(0); 47652286Smdodd 47752286Smdoddbad: 47852286Smdodd 47952286Smdodd if (sc->ioport) 48052286Smdodd bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->ioport); 48152286Smdodd if (sc->irq) 48252286Smdodd bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq); 48352286Smdodd 48452286Smdodd return (-1); 48521769Sjkh} 48621769Sjkh 48721769Sjkh 48821769Sjkhvoid ex_init(void *xsc) 48921769Sjkh{ 49052286Smdodd struct ex_softc * sc = (struct ex_softc *) xsc; 49152286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 49252286Smdodd int s; 49352286Smdodd int i; 49452286Smdodd register int iobase = sc->iobase; 49552286Smdodd unsigned short temp_reg; 49621769Sjkh 49721769Sjkh DODEBUG(Start_End, printf("ex_init%d: start\n", ifp->if_unit);); 49821769Sjkh 49952286Smdodd if (ifp->if_addrhead.tqh_first == NULL) { 50052286Smdodd return; 50152286Smdodd } 50221769Sjkh s = splimp(); 50321769Sjkh sc->arpcom.ac_if.if_timer = 0; 50421769Sjkh 50521769Sjkh /* 50621769Sjkh * Load the ethernet address into the card. 50721769Sjkh */ 50821769Sjkh outb(iobase + CMD_REG, Bank2_Sel); 50921769Sjkh temp_reg = inb(iobase + EEPROM_REG); 51052286Smdodd if (temp_reg & Trnoff_Enable) { 51152286Smdodd outb(iobase + EEPROM_REG, temp_reg & ~Trnoff_Enable); 51252286Smdodd } 51352286Smdodd for (i = 0; i < ETHER_ADDR_LEN; i++) { 51452286Smdodd outb(iobase + I_ADDR_REG0 + i, sc->arpcom.ac_enaddr[i]); 51552286Smdodd } 51621769Sjkh /* 51721769Sjkh * - Setup transmit chaining and discard bad received frames. 51821769Sjkh * - Match broadcast. 51921769Sjkh * - Clear test mode. 52021769Sjkh * - Set receiving mode. 52121769Sjkh * - Set IRQ number. 52221769Sjkh */ 52321769Sjkh outb(iobase + REG1, inb(iobase + REG1) | Tx_Chn_Int_Md | Tx_Chn_ErStp | Disc_Bad_Fr); 52421769Sjkh outb(iobase + REG2, inb(iobase + REG2) | No_SA_Ins | RX_CRC_InMem); 52526545Sgibbs outb(iobase + REG3, inb(iobase + REG3) & 0x3f /* XXX constants. */ ); 52621769Sjkh outb(iobase + CMD_REG, Bank1_Sel); 52729877Smsmith outb(iobase + INT_NO_REG, (inb(iobase + INT_NO_REG) & 0xf8) | sc->irq2ee[sc->irq_no]); 52821769Sjkh 52921769Sjkh /* 53021769Sjkh * Divide the available memory in the card into rcv and xmt buffers. 53121769Sjkh * By default, I use the first 3/4 of the memory for the rcv buffer, 53221769Sjkh * and the remaining 1/4 of the memory for the xmt buffer. 53321769Sjkh */ 53421769Sjkh sc->rx_mem_size = sc->mem_size * 3 / 4; 53521769Sjkh sc->tx_mem_size = sc->mem_size - sc->rx_mem_size; 53621769Sjkh sc->rx_lower_limit = 0x0000; 53721769Sjkh sc->rx_upper_limit = sc->rx_mem_size - 2; 53821769Sjkh sc->tx_lower_limit = sc->rx_mem_size; 53921769Sjkh sc->tx_upper_limit = sc->mem_size - 2; 54021769Sjkh outb(iobase + RCV_LOWER_LIMIT_REG, sc->rx_lower_limit >> 8); 54121769Sjkh outb(iobase + RCV_UPPER_LIMIT_REG, sc->rx_upper_limit >> 8); 54221769Sjkh outb(iobase + XMT_LOWER_LIMIT_REG, sc->tx_lower_limit >> 8); 54321769Sjkh outb(iobase + XMT_UPPER_LIMIT_REG, sc->tx_upper_limit >> 8); 54421769Sjkh 54521769Sjkh /* 54621769Sjkh * Enable receive and transmit interrupts, and clear any pending int. 54721769Sjkh */ 54821769Sjkh outb(iobase + REG1, inb(iobase + REG1) | TriST_INT); 54921769Sjkh outb(iobase + CMD_REG, Bank0_Sel); 55021769Sjkh outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int)); 55121769Sjkh outb(iobase + STATUS_REG, All_Int); 55221769Sjkh 55321769Sjkh /* 55421769Sjkh * Initialize receive and transmit ring buffers. 55521769Sjkh */ 55621769Sjkh outw(iobase + RCV_BAR, sc->rx_lower_limit); 55721769Sjkh sc->rx_head = sc->rx_lower_limit; 55826545Sgibbs outw(iobase + RCV_STOP_REG, sc->rx_upper_limit | 0xfe); 55921769Sjkh outw(iobase + XMT_BAR, sc->tx_lower_limit); 56021769Sjkh sc->tx_head = sc->tx_tail = sc->tx_lower_limit; 56121769Sjkh 56221769Sjkh ifp->if_flags |= IFF_RUNNING; 56321769Sjkh ifp->if_flags &= ~IFF_OACTIVE; 56421769Sjkh DODEBUG(Status, printf("OIDLE init\n");); 56521769Sjkh 56621769Sjkh /* 56721769Sjkh * Final reset of the board, and enable operation. 56821769Sjkh */ 56921769Sjkh outb(iobase + CMD_REG, Sel_Reset_CMD); 57021769Sjkh DELAY(2); 57121769Sjkh outb(iobase + CMD_REG, Rcv_Enable_CMD); 57221769Sjkh 57321769Sjkh ex_start(ifp); 57421769Sjkh splx(s); 57521769Sjkh 57621769Sjkh DODEBUG(Start_End, printf("ex_init%d: finish\n", ifp->if_unit);); 57721769Sjkh} 57821769Sjkh 57921769Sjkh 58052286Smdoddvoid 58152286Smdoddex_start(struct ifnet *ifp) 58221769Sjkh{ 58352286Smdodd struct ex_softc * sc = ifp->if_softc; 58452286Smdodd int iobase = sc->iobase; 58552286Smdodd int i, s, len, data_len, avail, dest, next; 58652286Smdodd unsigned char tmp16[2]; 58752286Smdodd struct mbuf * opkt; 58852286Smdodd struct mbuf * m; 58921769Sjkh 59052286Smdodd DODEBUG(Start_End, printf("ex_start%d: start\n", unit);); 59121769Sjkh 59252286Smdodd s = splimp(); 59321769Sjkh 59452286Smdodd /* 59552286Smdodd * Main loop: send outgoing packets to network card until there are no 59652286Smdodd * more packets left, or the card cannot accept any more yet. 59752286Smdodd */ 59852286Smdodd while (((opkt = ifp->if_snd.ifq_head) != NULL) && 59952286Smdodd !(ifp->if_flags & IFF_OACTIVE)) { 60021769Sjkh 60152286Smdodd /* 60252286Smdodd * Ensure there is enough free transmit buffer space for 60352286Smdodd * this packet, including its header. Note: the header 60452286Smdodd * cannot wrap around the end of the transmit buffer and 60552286Smdodd * must be kept together, so we allow space for twice the 60652286Smdodd * length of the header, just in case. 60752286Smdodd */ 60821769Sjkh 60952286Smdodd for (len = 0, m = opkt; m != NULL; m = m->m_next) { 61052286Smdodd len += m->m_len; 61152286Smdodd } 61252286Smdodd 61352286Smdodd data_len = len; 61452286Smdodd 61552286Smdodd DODEBUG(Sent_Pkts, printf("1. Sending packet with %d data bytes. ", data_len);); 61652286Smdodd 61752286Smdodd if (len & 1) { 61852286Smdodd len += XMT_HEADER_LEN + 1; 61952286Smdodd } else { 62052286Smdodd len += XMT_HEADER_LEN; 62152286Smdodd } 62252286Smdodd 62352286Smdodd if ((i = sc->tx_tail - sc->tx_head) >= 0) { 62452286Smdodd avail = sc->tx_mem_size - i; 62552286Smdodd } else { 62652286Smdodd avail = -i; 62752286Smdodd } 62852286Smdodd 62952286Smdodd DODEBUG(Sent_Pkts, printf("i=%d, avail=%d\n", i, avail);); 63052286Smdodd 63152286Smdodd if (avail >= len + XMT_HEADER_LEN) { 63252286Smdodd IF_DEQUEUE(&ifp->if_snd, opkt); 63352286Smdodd 63421769Sjkh#ifdef EX_PSA_INTR 63552286Smdodd /* 63652286Smdodd * Disable rx and tx interrupts, to avoid corruption 63752286Smdodd * of the host address register by interrupt service 63852286Smdodd * routines. 63952286Smdodd * XXX Is this necessary with splimp() enabled? 64052286Smdodd */ 64152286Smdodd outb(iobase + MASK_REG, All_Int); 64221769Sjkh#endif 64321769Sjkh 64452286Smdodd /* 64552286Smdodd * Compute the start and end addresses of this 64652286Smdodd * frame in the tx buffer. 64752286Smdodd */ 64852286Smdodd dest = sc->tx_tail; 64952286Smdodd next = dest + len; 65021769Sjkh 65152286Smdodd if (next > sc->tx_upper_limit) { 65252286Smdodd if ((sc->tx_upper_limit + 2 - sc->tx_tail) <= 65352286Smdodd XMT_HEADER_LEN) { 65452286Smdodd dest = sc->tx_lower_limit; 65552286Smdodd next = dest + len; 65655881Smdodd } else { 65755881Smdodd next = sc->tx_lower_limit + 65855881Smdodd next - sc->tx_upper_limit - 2; 65952286Smdodd } 66052286Smdodd } 66121769Sjkh 66252286Smdodd /* 66352286Smdodd * Build the packet frame in the card's ring buffer. 66452286Smdodd */ 66552286Smdodd DODEBUG(Sent_Pkts, printf("2. dest=%d, next=%d. ", dest, next);); 66621769Sjkh 66752286Smdodd outw(iobase + HOST_ADDR_REG, dest); 66852286Smdodd outw(iobase + IO_PORT_REG, Transmit_CMD); 66952286Smdodd outw(iobase + IO_PORT_REG, 0); 67052286Smdodd outw(iobase + IO_PORT_REG, next); 67152286Smdodd outw(iobase + IO_PORT_REG, data_len); 67221769Sjkh 67352286Smdodd /* 67452286Smdodd * Output the packet data to the card. Ensure all 67552286Smdodd * transfers are 16-bit wide, even if individual 67652286Smdodd * mbufs have odd length. 67752286Smdodd */ 67821769Sjkh 67952286Smdodd for (m = opkt, i = 0; m != NULL; m = m->m_next) { 68052286Smdodd DODEBUG(Sent_Pkts, printf("[%d]", m->m_len);); 68152286Smdodd if (i) { 68252286Smdodd tmp16[1] = *(mtod(m, caddr_t)); 68352286Smdodd outsw(iobase + IO_PORT_REG, tmp16, 1); 68452286Smdodd } 68552286Smdodd outsw(iobase + IO_PORT_REG, 68652286Smdodd mtod(m, caddr_t) + i, (m->m_len - i) / 2); 68752286Smdodd 68852286Smdodd if ((i = (m->m_len - i) & 1) != 0) { 68952286Smdodd tmp16[0] = *(mtod(m, caddr_t) + 69052286Smdodd m->m_len - 1); 69152286Smdodd } 69252286Smdodd } 69352286Smdodd if (i) { 69452286Smdodd outsw(iobase + IO_PORT_REG, tmp16, 1); 69555881Smdodd } 69652286Smdodd 69755881Smdodd /* 69855881Smdodd * If there were other frames chained, update the 69955881Smdodd * chain in the last one. 70055881Smdodd */ 70155881Smdodd if (sc->tx_head != sc->tx_tail) { 70255881Smdodd if (sc->tx_tail != dest) { 70352286Smdodd outw(iobase + HOST_ADDR_REG, 70455881Smdodd sc->tx_last + XMT_Chain_Point); 70555881Smdodd outw(iobase + IO_PORT_REG, dest); 70652286Smdodd } 70755881Smdodd outw(iobase + HOST_ADDR_REG, 70855881Smdodd sc->tx_last + XMT_Byte_Count); 70955881Smdodd i = inw(iobase + IO_PORT_REG); 71055881Smdodd outw(iobase + HOST_ADDR_REG, 71155881Smdodd sc->tx_last + XMT_Byte_Count); 71255881Smdodd outw(iobase + IO_PORT_REG, i | Ch_bit); 71355881Smdodd } 71455881Smdodd 71555881Smdodd /* 71655881Smdodd * Resume normal operation of the card: 71755881Smdodd * - Make a dummy read to flush the DRAM write 71855881Smdodd * pipeline. 71955881Smdodd * - Enable receive and transmit interrupts. 72055881Smdodd * - Send Transmit or Resume_XMT command, as 72155881Smdodd * appropriate. 72255881Smdodd */ 72355881Smdodd inw(iobase + IO_PORT_REG); 72421769Sjkh#ifdef EX_PSA_INTR 72555881Smdodd outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int)); 72621769Sjkh#endif 72755881Smdodd if (sc->tx_head == sc->tx_tail) { 72855881Smdodd outw(iobase + XMT_BAR, dest); 72955881Smdodd outb(iobase + CMD_REG, Transmit_CMD); 73055881Smdodd sc->tx_head = dest; 73155881Smdodd DODEBUG(Sent_Pkts, printf("Transmit\n");); 73252286Smdodd } else { 73355881Smdodd outb(iobase + CMD_REG, Resume_XMT_List_CMD); 73455881Smdodd DODEBUG(Sent_Pkts, printf("Resume\n");); 73552286Smdodd } 73655881Smdodd 73755881Smdodd sc->tx_last = dest; 73855881Smdodd sc->tx_tail = next; 73955881Smdodd 74055881Smdodd if (ifp->if_bpf != NULL) { 74155881Smdodd bpf_mtap(ifp, opkt); 74255881Smdodd } 74355881Smdodd 74455881Smdodd ifp->if_timer = 2; 74555881Smdodd ifp->if_opackets++; 74655881Smdodd m_freem(opkt); 74755881Smdodd } else { 74855881Smdodd ifp->if_flags |= IFF_OACTIVE; 74955881Smdodd DODEBUG(Status, printf("OACTIVE start\n");); 75052286Smdodd } 75121769Sjkh } 75221769Sjkh 75352286Smdodd splx(s); 75421769Sjkh 75552286Smdodd DODEBUG(Start_End, printf("ex_start%d: finish\n", unit);); 75621769Sjkh} 75721769Sjkh 75852286Smdoddstatic void 75952286Smdoddex_stop(struct ex_softc *sc) 76021769Sjkh{ 76152286Smdodd int iobase = sc->iobase; 76221769Sjkh 76352286Smdodd DODEBUG(Start_End, printf("ex_stop%d: start\n", unit);); 76421769Sjkh 76552286Smdodd /* 76652286Smdodd * Disable card operation: 76752286Smdodd * - Disable the interrupt line. 76852286Smdodd * - Flush transmission and disable reception. 76952286Smdodd * - Mask and clear all interrupts. 77052286Smdodd * - Reset the 82595. 77152286Smdodd */ 77252286Smdodd outb(iobase + CMD_REG, Bank1_Sel); 77352286Smdodd outb(iobase + REG1, inb(iobase + REG1) & ~TriST_INT); 77452286Smdodd outb(iobase + CMD_REG, Bank0_Sel); 77552286Smdodd outb(iobase + CMD_REG, Rcv_Stop); 77652286Smdodd sc->tx_head = sc->tx_tail = sc->tx_lower_limit; 77752286Smdodd sc->tx_last = 0; /* XXX I think these two lines are not necessary, because ex_init will always be called again to reinit the interface. */ 77852286Smdodd outb(iobase + MASK_REG, All_Int); 77952286Smdodd outb(iobase + STATUS_REG, All_Int); 78052286Smdodd outb(iobase + CMD_REG, Reset_CMD); 78152286Smdodd DELAY(200); 78221769Sjkh 78352286Smdodd DODEBUG(Start_End, printf("ex_stop%d: finish\n", unit);); 78452286Smdodd 78552286Smdodd return; 78621769Sjkh} 78721769Sjkh 78821769Sjkh 78952286Smdoddstatic void 79052286Smdoddexintr(void *arg) 79121769Sjkh{ 79252286Smdodd struct ex_softc * sc = (struct ex_softc *)arg; 79352286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 79452286Smdodd int iobase = sc->iobase; 79552286Smdodd int int_status, send_pkts; 79621769Sjkh 79752286Smdodd DODEBUG(Start_End, printf("exintr%d: start\n", unit);); 79821769Sjkh 79921769Sjkh#ifdef EXDEBUG 80021769Sjkh if (++exintr_count != 1) 80121769Sjkh printf("WARNING: nested interrupt (%d). Mail the author.\n", exintr_count); 80221769Sjkh#endif 80321769Sjkh 80452286Smdodd send_pkts = 0; 80552286Smdodd while ((int_status = inb(iobase + STATUS_REG)) & (Tx_Int | Rx_Int)) { 80652286Smdodd if (int_status & Rx_Int) { 80752286Smdodd outb(iobase + STATUS_REG, Rx_Int); 80821769Sjkh 80952286Smdodd ex_rx_intr(sc); 81052286Smdodd } else if (int_status & Tx_Int) { 81152286Smdodd outb(iobase + STATUS_REG, Tx_Int); 81221769Sjkh 81352286Smdodd ex_tx_intr(sc); 81452286Smdodd send_pkts = 1; 81552286Smdodd } 81652286Smdodd } 81721769Sjkh 81852286Smdodd /* 81952286Smdodd * If any packet has been transmitted, and there are queued packets to 82052286Smdodd * be sent, attempt to send more packets to the network card. 82152286Smdodd */ 82252286Smdodd 82352286Smdodd if (send_pkts && (ifp->if_snd.ifq_head != NULL)) { 82452286Smdodd ex_start(ifp); 82552286Smdodd } 82652286Smdodd 82721769Sjkh#ifdef EXDEBUG 82821769Sjkh exintr_count--; 82921769Sjkh#endif 83021769Sjkh 83152286Smdodd DODEBUG(Start_End, printf("exintr%d: finish\n", unit);); 83252286Smdodd 83352286Smdodd return; 83421769Sjkh} 83521769Sjkh 83652286Smdoddstatic void 83752286Smdoddex_tx_intr(struct ex_softc *sc) 83821769Sjkh{ 83952286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 84052286Smdodd int iobase = sc->iobase; 84152286Smdodd int tx_status; 84221769Sjkh 84352286Smdodd DODEBUG(Start_End, printf("ex_tx_intr%d: start\n", unit);); 84421769Sjkh 84552286Smdodd /* 84652286Smdodd * - Cancel the watchdog. 84752286Smdodd * For all packets transmitted since last transmit interrupt: 84852286Smdodd * - Advance chain pointer to next queued packet. 84952286Smdodd * - Update statistics. 85052286Smdodd */ 85121769Sjkh 85252286Smdodd ifp->if_timer = 0; 85321769Sjkh 85452286Smdodd while (sc->tx_head != sc->tx_tail) { 85552286Smdodd outw(iobase + HOST_ADDR_REG, sc->tx_head); 85621769Sjkh 85752286Smdodd if (! inw(iobase + IO_PORT_REG) & Done_bit) 85852286Smdodd break; 85921769Sjkh 86052286Smdodd tx_status = inw(iobase + IO_PORT_REG); 86152286Smdodd sc->tx_head = inw(iobase + IO_PORT_REG); 86252286Smdodd 86352286Smdodd if (tx_status & TX_OK_bit) { 86452286Smdodd ifp->if_opackets++; 86552286Smdodd } else { 86652286Smdodd ifp->if_oerrors++; 86752286Smdodd } 86852286Smdodd 86952286Smdodd ifp->if_collisions += tx_status & No_Collisions_bits; 87052286Smdodd } 87152286Smdodd 87252286Smdodd /* 87352286Smdodd * The card should be ready to accept more packets now. 87452286Smdodd */ 87552286Smdodd 87652286Smdodd ifp->if_flags &= ~IFF_OACTIVE; 87752286Smdodd 87852286Smdodd DODEBUG(Status, printf("OIDLE tx_intr\n");); 87952286Smdodd DODEBUG(Start_End, printf("ex_tx_intr%d: finish\n", unit);); 88052286Smdodd 88152286Smdodd return; 88221769Sjkh} 88321769Sjkh 88452286Smdoddstatic void 88552286Smdoddex_rx_intr(struct ex_softc *sc) 88621769Sjkh{ 88752286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 88852286Smdodd int iobase = sc->iobase; 88952286Smdodd int rx_status; 89052286Smdodd int pkt_len; 89152286Smdodd int QQQ; 89252286Smdodd struct mbuf * m; 89352286Smdodd struct mbuf * ipkt; 89452286Smdodd struct ether_header * eh; 89521769Sjkh 89652286Smdodd DODEBUG(Start_End, printf("ex_rx_intr%d: start\n", unit);); 89721769Sjkh 89852286Smdodd /* 89952286Smdodd * For all packets received since last receive interrupt: 90052286Smdodd * - If packet ok, read it into a new mbuf and queue it to interface, 90152286Smdodd * updating statistics. 90252286Smdodd * - If packet bad, just discard it, and update statistics. 90352286Smdodd * Finally, advance receive stop limit in card's memory to new location. 90452286Smdodd */ 90521769Sjkh 90652286Smdodd outw(iobase + HOST_ADDR_REG, sc->rx_head); 90721769Sjkh 90852286Smdodd while (inw(iobase + IO_PORT_REG) == RCV_Done) { 90952286Smdodd 91052286Smdodd rx_status = inw(iobase + IO_PORT_REG); 91152286Smdodd sc->rx_head = inw(iobase + IO_PORT_REG); 91252286Smdodd QQQ = pkt_len = inw(iobase + IO_PORT_REG); 91352286Smdodd 91452286Smdodd if (rx_status & RCV_OK_bit) { 91552286Smdodd MGETHDR(m, M_DONTWAIT, MT_DATA); 91652286Smdodd ipkt = m; 91752286Smdodd if (ipkt == NULL) { 91852286Smdodd ifp->if_iqdrops++; 91952286Smdodd } else { 92052286Smdodd ipkt->m_pkthdr.rcvif = ifp; 92152286Smdodd ipkt->m_pkthdr.len = pkt_len; 92252286Smdodd ipkt->m_len = MHLEN; 92352286Smdodd 92452286Smdodd while (pkt_len > 0) { 92552286Smdodd if (pkt_len > MINCLSIZE) { 92652286Smdodd MCLGET(m, M_DONTWAIT); 92752286Smdodd if (m->m_flags & M_EXT) { 92852286Smdodd m->m_len = MCLBYTES; 92952286Smdodd } else { 93052286Smdodd m_freem(ipkt); 93152286Smdodd ifp->if_iqdrops++; 93252286Smdodd goto rx_another; 93352286Smdodd } 93452286Smdodd } 93552286Smdodd m->m_len = min(m->m_len, pkt_len); 93652286Smdodd 93721769Sjkh /* 93821769Sjkh * NOTE: I'm assuming that all mbufs allocated are of even length, 93921769Sjkh * except for the last one in an odd-length packet. 94021769Sjkh */ 94152286Smdodd 94252286Smdodd insw(iobase + IO_PORT_REG, 94352286Smdodd mtod(m, caddr_t), m->m_len / 2); 94452286Smdodd 94552286Smdodd if (m->m_len & 1) { 94652286Smdodd *(mtod(m, caddr_t) + m->m_len - 1) = inb(iobase + IO_PORT_REG); 94752286Smdodd } 94852286Smdodd pkt_len -= m->m_len; 94952286Smdodd 95052286Smdodd if (pkt_len > 0) { 95152286Smdodd MGET(m->m_next, M_DONTWAIT, MT_DATA); 95252286Smdodd if (m->m_next == NULL) { 95352286Smdodd m_freem(ipkt); 95452286Smdodd ifp->if_iqdrops++; 95552286Smdodd goto rx_another; 95652286Smdodd } 95752286Smdodd m = m->m_next; 95852286Smdodd m->m_len = MLEN; 95952286Smdodd } 96052286Smdodd } 96152286Smdodd eh = mtod(ipkt, struct ether_header *); 96252286Smdodd#ifdef EXDEBUG 96352286Smdodd if (debug_mask & Rcvd_Pkts) { 96452286Smdodd if ((eh->ether_dhost[5] != 0xff) || (eh->ether_dhost[0] != 0xff)) { 96552286Smdodd printf("Receive packet with %d data bytes: %6D -> ", QQQ, eh->ether_shost, ":"); 96652286Smdodd printf("%6D\n", eh->ether_dhost, ":"); 96752286Smdodd } /* QQQ */ 96821769Sjkh } 96921769Sjkh#endif 97052286Smdodd if (ifp->if_bpf != NULL) { 97152286Smdodd bpf_mtap(ifp, ipkt); 97221769Sjkh 97321769Sjkh /* 97452286Smdodd * Note that the interface cannot be in promiscuous mode 97552286Smdodd * if there are no BPF listeners. And if we are in 97652286Smdodd * promiscuous mode, we have to check if this packet is 97752286Smdodd * really ours. 97821769Sjkh */ 97952286Smdodd if ((ifp->if_flags & IFF_PROMISC) && 98052286Smdodd (eh->ether_dhost[0] & 1) == 0 && 98152286Smdodd bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr, sizeof(eh->ether_dhost)) != 0 && 98252286Smdodd bcmp(eh->ether_dhost, etherbroadcastaddr, sizeof(eh->ether_dhost)) != 0) { 98352286Smdodd m_freem(ipkt); 98452286Smdodd goto rx_another; 98552286Smdodd } 98652286Smdodd } 98752286Smdodd m_adj(ipkt, sizeof(struct ether_header)); 98852286Smdodd ether_input(ifp, eh, ipkt); 98952286Smdodd ifp->if_ipackets++; 99052286Smdodd } 99152286Smdodd } else { 99252286Smdodd ifp->if_ierrors++; 99321769Sjkh } 99452286Smdodd outw(iobase + HOST_ADDR_REG, sc->rx_head); 99552286Smdoddrx_another: ; 99621769Sjkh } 99721769Sjkh 99852286Smdodd if (sc->rx_head < sc->rx_lower_limit + 2) 99952286Smdodd outw(iobase + RCV_STOP_REG, sc->rx_upper_limit); 100052286Smdodd else 100152286Smdodd outw(iobase + RCV_STOP_REG, sc->rx_head - 2); 100252286Smdodd 100352286Smdodd DODEBUG(Start_End, printf("ex_rx_intr%d: finish\n", unit);); 100452286Smdodd 100552286Smdodd return; 100621769Sjkh} 100721769Sjkh 100821769Sjkh 100936735Sdfrint ex_ioctl(register struct ifnet *ifp, u_long cmd, caddr_t data) 101021769Sjkh{ 101152286Smdodd struct ex_softc * sc = ifp->if_softc; 101252286Smdodd int s; 101352286Smdodd int error = 0; 101421769Sjkh 101552286Smdodd DODEBUG(Start_End, printf("ex_ioctl%d: start ", ifp->if_unit);); 101621769Sjkh 101752286Smdodd s = splimp(); 101821769Sjkh 101952286Smdodd switch(cmd) { 102052286Smdodd case SIOCSIFADDR: 102152286Smdodd case SIOCGIFADDR: 102252286Smdodd case SIOCSIFMTU: 102352286Smdodd error = ether_ioctl(ifp, cmd, data); 102452286Smdodd break; 102521769Sjkh 102652286Smdodd case SIOCSIFFLAGS: 102752286Smdodd DODEBUG(Start_End, printf("SIOCSIFFLAGS");); 102852286Smdodd if ((ifp->if_flags & IFF_UP) == 0 && 102952286Smdodd (ifp->if_flags & IFF_RUNNING)) { 103052286Smdodd 103152286Smdodd ifp->if_flags &= ~IFF_RUNNING; 103252286Smdodd ex_stop(sc); 103352286Smdodd } else { 103452286Smdodd ex_init(sc); 103552286Smdodd } 103652286Smdodd break; 103721769Sjkh#ifdef NODEF 103852286Smdodd case SIOCGHWADDR: 103952286Smdodd DODEBUG(Start_End, printf("SIOCGHWADDR");); 104052286Smdodd bcopy((caddr_t)sc->sc_addr, (caddr_t)&ifr->ifr_data, 104152286Smdodd sizeof(sc->sc_addr)); 104252286Smdodd break; 104321769Sjkh#endif 104452286Smdodd case SIOCADDMULTI: 104552286Smdodd DODEBUG(Start_End, printf("SIOCADDMULTI");); 104652286Smdodd case SIOCDELMULTI: 104752286Smdodd DODEBUG(Start_End, printf("SIOCDELMULTI");); 104852286Smdodd /* XXX Support not done yet. */ 104952286Smdodd error = EINVAL; 105052286Smdodd break; 105152286Smdodd default: 105252286Smdodd DODEBUG(Start_End, printf("unknown");); 105352286Smdodd error = EINVAL; 105452286Smdodd } 105521769Sjkh 105652286Smdodd splx(s); 105721769Sjkh 105852286Smdodd DODEBUG(Start_End, printf("\nex_ioctl%d: finish\n", ifp->if_unit);); 105952286Smdodd 106052286Smdodd return(error); 106121769Sjkh} 106221769Sjkh 106321769Sjkh 106452286Smdoddstatic void 106552286Smdoddex_reset(struct ex_softc *sc) 106621769Sjkh{ 106752286Smdodd int s; 106821769Sjkh 106952286Smdodd DODEBUG(Start_End, printf("ex_reset%d: start\n", unit);); 107021769Sjkh 107152286Smdodd s = splimp(); 107221769Sjkh 107352286Smdodd ex_stop(sc); 107452286Smdodd ex_init(sc); 107521769Sjkh 107652286Smdodd splx(s); 107721769Sjkh 107852286Smdodd DODEBUG(Start_End, printf("ex_reset%d: finish\n", unit);); 107952286Smdodd 108052286Smdodd return; 108121769Sjkh} 108221769Sjkh 108321769Sjkh 108452286Smdoddstatic void 108552286Smdoddex_watchdog(struct ifnet *ifp) 108621769Sjkh{ 108752286Smdodd struct ex_softc * sc = ifp->if_softc; 108821769Sjkh 108952286Smdodd DODEBUG(Start_End, printf("ex_watchdog%d: start\n", ifp->if_unit);); 109021769Sjkh 109152286Smdodd ifp->if_flags &= ~IFF_OACTIVE; 109221769Sjkh 109352286Smdodd DODEBUG(Status, printf("OIDLE watchdog\n");); 109452286Smdodd 109552286Smdodd ifp->if_oerrors++; 109652286Smdodd ex_reset(sc); 109752286Smdodd ex_start(ifp); 109852286Smdodd 109952286Smdodd DODEBUG(Start_End, printf("ex_watchdog%d: finish\n", ifp->if_unit);); 110052286Smdodd 110152286Smdodd return; 110221769Sjkh} 110321769Sjkh 110421769Sjkh 110552286Smdoddstatic u_short 110652286Smdoddeeprom_read(int iobase, int location) 110721769Sjkh{ 110821769Sjkh int i; 110921769Sjkh u_short data = 0; 111021769Sjkh int ee_addr; 111121769Sjkh int read_cmd = location | EE_READ_CMD; 111221769Sjkh short ctrl_val = EECS; 111321769Sjkh 111421769Sjkh ee_addr = iobase + EEPROM_REG; 111521769Sjkh outb(iobase + CMD_REG, Bank2_Sel); 111621769Sjkh outb(ee_addr, EECS); 111721769Sjkh for (i = 8; i >= 0; i--) { 111821769Sjkh short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI : ctrl_val; 111921769Sjkh outb(ee_addr, outval); 112021769Sjkh outb(ee_addr, outval | EESK); 112121769Sjkh DELAY(3); 112221769Sjkh outb(ee_addr, outval); 112321769Sjkh DELAY(2); 112421769Sjkh } 112521769Sjkh outb(ee_addr, ctrl_val); 112621769Sjkh 112721769Sjkh for (i = 16; i > 0; i--) { 112821769Sjkh outb(ee_addr, ctrl_val | EESK); 112921769Sjkh DELAY(3); 113021769Sjkh data = (data << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0); 113121769Sjkh outb(ee_addr, ctrl_val); 113221769Sjkh DELAY(2); 113321769Sjkh } 113421769Sjkh 113521769Sjkh ctrl_val &= ~EECS; 113621769Sjkh outb(ee_addr, ctrl_val | EESK); 113721769Sjkh DELAY(3); 113821769Sjkh outb(ee_addr, ctrl_val); 113921769Sjkh DELAY(2); 114021769Sjkh outb(iobase + CMD_REG, Bank0_Sel); 114121769Sjkh return(data); 114221769Sjkh} 114321769Sjkh 114421769Sjkh#endif /* NEX > 0 */ 1145