if_ex.c revision 182088
1139749Simp/*- 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 * 2752286Smdodd * 2852286Smdodd * MAINTAINER: Matthew N. Dodd <winter@jurai.net> 2952286Smdodd * <mdodd@FreeBSD.org> 3021769Sjkh */ 3121769Sjkh 32119418Sobrien#include <sys/cdefs.h> 33119418Sobrien__FBSDID("$FreeBSD: head/sys/dev/ex/if_ex.c 182088 2008-08-24 00:22:42Z imp $"); 34119418Sobrien 3521769Sjkh/* 3629877Smsmith * Intel EtherExpress Pro/10, Pro/10+ Ethernet driver 3721769Sjkh * 3821769Sjkh * Revision history: 3921769Sjkh * 40112731Smdodd * dd-mmm-yyyy: Multicast support ported from NetBSD's if_iy driver. 4121769Sjkh * 30-Oct-1996: first beta version. Inet and BPF supported, but no multicast. 4221769Sjkh */ 4321769Sjkh 4421769Sjkh#include <sys/param.h> 4521769Sjkh#include <sys/systm.h> 4652286Smdodd#include <sys/kernel.h> 4724204Sbde#include <sys/sockio.h> 4821769Sjkh#include <sys/mbuf.h> 4921769Sjkh#include <sys/socket.h> 5021769Sjkh 5152286Smdodd#include <sys/module.h> 5252286Smdodd#include <sys/bus.h> 5352286Smdodd 5452286Smdodd#include <machine/bus.h> 5552286Smdodd#include <machine/resource.h> 5652286Smdodd#include <sys/rman.h> 5752286Smdodd 5857987Smdodd#include <net/if.h> 5957987Smdodd#include <net/if_arp.h> 60112731Smdodd#include <net/if_dl.h> 6157987Smdodd#include <net/if_media.h> 62147256Sbrooks#include <net/if_types.h> 6350026Smdodd#include <net/ethernet.h> 6457987Smdodd#include <net/bpf.h> 6521769Sjkh 6650026Smdodd#include <netinet/in.h> 6750026Smdodd#include <netinet/if_ether.h> 6850026Smdodd 6921769Sjkh 7052286Smdodd#include <isa/isavar.h> 7152286Smdodd#include <isa/pnpvar.h> 7252286Smdodd 7355953Speter#include <dev/ex/if_exreg.h> 7459816Smdodd#include <dev/ex/if_exvar.h> 7521769Sjkh 7621769Sjkh#ifdef EXDEBUG 7752286Smdodd# define Start_End 1 7852286Smdodd# define Rcvd_Pkts 2 7952286Smdodd# define Sent_Pkts 4 8052286Smdodd# define Status 8 8121769Sjkhstatic int debug_mask = 0; 8252286Smdodd# define DODEBUG(level, action) if (level & debug_mask) action 8321769Sjkh#else 8452286Smdodd# define DODEBUG(level, action) 8521769Sjkh#endif 8621769Sjkh 87112801Smdodddevclass_t ex_devclass; 88112801Smdodd 8959816Smdoddchar irq2eemap[] = 9052286Smdodd { -1, -1, 0, 1, -1, 2, -1, -1, -1, 0, 3, 4, -1, -1, -1, -1 }; 9159816Smdoddu_char ee2irqmap[] = 9252286Smdodd { 9, 3, 5, 10, 11, 0, 0, 0 }; 9359816Smdodd 9459816Smdoddchar plus_irq2eemap[] = 9552286Smdodd { -1, -1, -1, 0, 1, 2, -1, 3, -1, 4, 5, 6, 7, -1, -1, -1 }; 9659816Smdoddu_char plus_ee2irqmap[] = 9752286Smdodd { 3, 4, 5, 7, 9, 10, 11, 12 }; 9821769Sjkh 9952286Smdodd/* Network Interface Functions */ 100131192Simpstatic void ex_init(void *); 101179775Sjhbstatic void ex_init_locked(struct ex_softc *); 102131192Simpstatic void ex_start(struct ifnet *); 103179775Sjhbstatic void ex_start_locked(struct ifnet *); 104131192Simpstatic int ex_ioctl(struct ifnet *, u_long, caddr_t); 105179775Sjhbstatic void ex_watchdog(void *); 10621769Sjkh 10757987Smdodd/* ifmedia Functions */ 108131192Simpstatic int ex_ifmedia_upd(struct ifnet *); 109131192Simpstatic void ex_ifmedia_sts(struct ifnet *, struct ifmediareq *); 11057987Smdodd 111131192Simpstatic int ex_get_media(struct ex_softc *); 11259816Smdodd 113131192Simpstatic void ex_reset(struct ex_softc *); 114131192Simpstatic void ex_setmulti(struct ex_softc *); 11552286Smdodd 116131192Simpstatic void ex_tx_intr(struct ex_softc *); 117131192Simpstatic void ex_rx_intr(struct ex_softc *); 11852286Smdodd 11959816Smdoddvoid 120131192Simpex_get_address(struct ex_softc *sc, u_char *enaddr) 12121769Sjkh{ 122131192Simp uint16_t eaddr_tmp; 12321769Sjkh 124131192Simp eaddr_tmp = ex_eeprom_read(sc, EE_Eth_Addr_Lo); 12552286Smdodd enaddr[5] = eaddr_tmp & 0xff; 12652286Smdodd enaddr[4] = eaddr_tmp >> 8; 127131192Simp eaddr_tmp = ex_eeprom_read(sc, EE_Eth_Addr_Mid); 12852286Smdodd enaddr[3] = eaddr_tmp & 0xff; 12952286Smdodd enaddr[2] = eaddr_tmp >> 8; 130131192Simp eaddr_tmp = ex_eeprom_read(sc, EE_Eth_Addr_Hi); 13152286Smdodd enaddr[1] = eaddr_tmp & 0xff; 13252286Smdodd enaddr[0] = eaddr_tmp >> 8; 13352286Smdodd 13452286Smdodd return; 13552286Smdodd} 13621769Sjkh 13759816Smdoddint 138131192Simpex_card_type(u_char *enaddr) 13952286Smdodd{ 14052286Smdodd if ((enaddr[0] == 0x00) && (enaddr[1] == 0xA0) && (enaddr[2] == 0xC9)) 14152286Smdodd return (CARD_TYPE_EX_10_PLUS); 14252286Smdodd 14352286Smdodd return (CARD_TYPE_EX_10); 14452286Smdodd} 14552286Smdodd 14655882Smdodd/* 14759816Smdodd * Caller is responsible for eventually calling 14859816Smdodd * ex_release_resources() on failure. 14955882Smdodd */ 15059816Smdoddint 151131192Simpex_alloc_resources(device_t dev) 15255882Smdodd{ 15359816Smdodd struct ex_softc * sc = device_get_softc(dev); 15459816Smdodd int error = 0; 15555882Smdodd 156127135Snjl sc->ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 157127135Snjl &sc->ioport_rid, RF_ACTIVE); 15859816Smdodd if (!sc->ioport) { 15959816Smdodd device_printf(dev, "No I/O space?!\n"); 16059816Smdodd error = ENOMEM; 16159816Smdodd goto bad; 16259816Smdodd } 16357989Smdodd 164127135Snjl sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 165127135Snjl RF_ACTIVE); 16655882Smdodd 16759816Smdodd if (!sc->irq) { 16859816Smdodd device_printf(dev, "No IRQ?!\n"); 16959816Smdodd error = ENOMEM; 17059816Smdodd goto bad; 17155882Smdodd } 17255882Smdodd 17359816Smdoddbad: 17459816Smdodd return (error); 17555882Smdodd} 17655882Smdodd 17759816Smdoddvoid 178131192Simpex_release_resources(device_t dev) 17952286Smdodd{ 18059816Smdodd struct ex_softc * sc = device_get_softc(dev); 18152286Smdodd 18259816Smdodd if (sc->ih) { 18359816Smdodd bus_teardown_intr(dev, sc->irq, sc->ih); 18459816Smdodd sc->ih = NULL; 18552286Smdodd } 18652286Smdodd 18759816Smdodd if (sc->ioport) { 18859816Smdodd bus_release_resource(dev, SYS_RES_IOPORT, 18959816Smdodd sc->ioport_rid, sc->ioport); 19059816Smdodd sc->ioport = NULL; 19152286Smdodd } 19252286Smdodd 19359816Smdodd if (sc->irq) { 19459816Smdodd bus_release_resource(dev, SYS_RES_IRQ, 19559816Smdodd sc->irq_rid, sc->irq); 19659816Smdodd sc->irq = NULL; 19757989Smdodd } 19857989Smdodd 199150215Sru if (sc->ifp) 200150215Sru if_free(sc->ifp); 201150215Sru 20259816Smdodd return; 20352286Smdodd} 20452286Smdodd 20559816Smdoddint 20659816Smdoddex_attach(device_t dev) 20752286Smdodd{ 20852286Smdodd struct ex_softc * sc = device_get_softc(dev); 209147256Sbrooks struct ifnet * ifp; 21057987Smdodd struct ifmedia * ifm; 211179775Sjhb int error; 212131192Simp uint16_t temp; 21352286Smdodd 214147256Sbrooks ifp = sc->ifp = if_alloc(IFT_ETHER); 215147256Sbrooks if (ifp == NULL) { 216147256Sbrooks device_printf(dev, "can not if_alloc()\n"); 217147256Sbrooks return (ENOSPC); 218147256Sbrooks } 21929877Smsmith /* work out which set of irq <-> internal tables to use */ 220147256Sbrooks if (ex_card_type(sc->enaddr) == CARD_TYPE_EX_10_PLUS) { 22129877Smsmith sc->irq2ee = plus_irq2eemap; 22229877Smsmith sc->ee2irq = plus_ee2irqmap; 22352286Smdodd } else { 22429877Smsmith sc->irq2ee = irq2eemap; 22529877Smsmith sc->ee2irq = ee2irqmap; 22629877Smsmith } 22729877Smsmith 22821769Sjkh sc->mem_size = CARD_RAM_SIZE; /* XXX This should be read from the card itself. */ 22921769Sjkh 23021769Sjkh /* 23121769Sjkh * Initialize the ifnet structure. 23221769Sjkh */ 23321769Sjkh ifp->if_softc = sc; 234121816Sbrooks if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 23555883Smdodd ifp->if_mtu = ETHERMTU; 236179775Sjhb ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 23721769Sjkh ifp->if_start = ex_start; 23821769Sjkh ifp->if_ioctl = ex_ioctl; 23955883Smdodd ifp->if_init = ex_init; 240179775Sjhb IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 24121769Sjkh 24257987Smdodd ifmedia_init(&sc->ifmedia, 0, ex_ifmedia_upd, ex_ifmedia_sts); 243179775Sjhb mtx_init(&sc->lock, device_get_nameunit(dev), MTX_NETWORK_LOCK, 244179775Sjhb MTX_DEF); 245179775Sjhb callout_init_mtx(&sc->timer, &sc->lock, 0); 24657987Smdodd 247131192Simp temp = ex_eeprom_read(sc, EE_W5); 24857987Smdodd if (temp & EE_W5_PORT_TPE) 24957987Smdodd ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL); 25057987Smdodd if (temp & EE_W5_PORT_BNC) 25157987Smdodd ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL); 25257987Smdodd if (temp & EE_W5_PORT_AUI) 25357987Smdodd ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL); 25457987Smdodd 255112764Smdodd ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); 256112764Smdodd ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_NONE, 0, NULL); 257131192Simp ifmedia_set(&sc->ifmedia, ex_get_media(sc)); 25857987Smdodd 25957987Smdodd ifm = &sc->ifmedia; 260179775Sjhb ifm->ifm_media = ifm->ifm_cur->ifm_media; 26157987Smdodd ex_ifmedia_upd(ifp); 26257987Smdodd 26321769Sjkh /* 26421769Sjkh * Attach the interface. 26521769Sjkh */ 266147256Sbrooks ether_ifattach(ifp, sc->enaddr); 26721769Sjkh 268179775Sjhb error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 269179775Sjhb NULL, ex_intr, (void *)sc, &sc->ih); 270179775Sjhb if (error) { 271179775Sjhb device_printf(dev, "bus_setup_intr() failed!\n"); 272179775Sjhb ether_ifdetach(ifp); 273179775Sjhb mtx_destroy(&sc->lock); 274179775Sjhb return (error); 275179775Sjhb } 276179775Sjhb 27752286Smdodd return(0); 27821769Sjkh} 27921769Sjkh 280112800Smdoddint 281131192Simpex_detach(device_t dev) 282112800Smdodd{ 283112800Smdodd struct ex_softc *sc; 284112800Smdodd struct ifnet *ifp; 285112800Smdodd 286112800Smdodd sc = device_get_softc(dev); 287147256Sbrooks ifp = sc->ifp; 288112800Smdodd 289179775Sjhb EX_LOCK(sc); 290112800Smdodd ex_stop(sc); 291179775Sjhb EX_UNLOCK(sc); 292112800Smdodd 293112800Smdodd ether_ifdetach(ifp); 294179775Sjhb callout_drain(&sc->timer); 295112800Smdodd 296112800Smdodd ex_release_resources(dev); 297179775Sjhb mtx_destroy(&sc->lock); 298112800Smdodd 299112800Smdodd return (0); 300112800Smdodd} 301112800Smdodd 30255883Smdoddstatic void 30355883Smdoddex_init(void *xsc) 30421769Sjkh{ 30552286Smdodd struct ex_softc * sc = (struct ex_softc *) xsc; 306179775Sjhb 307179775Sjhb EX_LOCK(sc); 308179775Sjhb ex_init_locked(sc); 309179775Sjhb EX_UNLOCK(sc); 310179775Sjhb} 311179775Sjhb 312179775Sjhbstatic void 313179775Sjhbex_init_locked(struct ex_softc *sc) 314179775Sjhb{ 315147256Sbrooks struct ifnet * ifp = sc->ifp; 31652286Smdodd int i; 31752286Smdodd unsigned short temp_reg; 31821769Sjkh 319121816Sbrooks DODEBUG(Start_End, printf("%s: ex_init: start\n", ifp->if_xname);); 32021769Sjkh 321179775Sjhb sc->tx_timeout = 0; 32221769Sjkh 32321769Sjkh /* 32421769Sjkh * Load the ethernet address into the card. 32521769Sjkh */ 326131192Simp CSR_WRITE_1(sc, CMD_REG, Bank2_Sel); 327131192Simp temp_reg = CSR_READ_1(sc, EEPROM_REG); 328182088Simp if (temp_reg & Trnoff_Enable) 329131192Simp CSR_WRITE_1(sc, EEPROM_REG, temp_reg & ~Trnoff_Enable); 330182088Simp for (i = 0; i < ETHER_ADDR_LEN; i++) 331152315Sru CSR_WRITE_1(sc, I_ADDR_REG0 + i, IF_LLADDR(sc->ifp)[i]); 332182088Simp 33321769Sjkh /* 33421769Sjkh * - Setup transmit chaining and discard bad received frames. 33521769Sjkh * - Match broadcast. 33621769Sjkh * - Clear test mode. 33721769Sjkh * - Set receiving mode. 33821769Sjkh */ 339131192Simp CSR_WRITE_1(sc, REG1, CSR_READ_1(sc, REG1) | Tx_Chn_Int_Md | Tx_Chn_ErStp | Disc_Bad_Fr); 340131192Simp CSR_WRITE_1(sc, REG2, CSR_READ_1(sc, REG2) | No_SA_Ins | RX_CRC_InMem); 341131192Simp CSR_WRITE_1(sc, REG3, CSR_READ_1(sc, REG3) & 0x3f /* XXX constants. */ ); 342182088Simp /* 343182088Simp * - Set IRQ number, if this part has it. ISA devices have this, 344182088Simp * while PC Card devices don't seem to. Either way, we have to 345182088Simp * switch to Bank1 as the rest of this code relies on that. 346182088Simp */ 347131192Simp CSR_WRITE_1(sc, CMD_REG, Bank1_Sel); 348182088Simp if (sc->flags & HAS_INT_NO_REG) 349182088Simp CSR_WRITE_1(sc, INT_NO_REG, 350182088Simp (CSR_READ_1(sc, INT_NO_REG) & 0xf8) | 351182088Simp sc->irq2ee[sc->irq_no]); 35221769Sjkh 35321769Sjkh /* 35421769Sjkh * Divide the available memory in the card into rcv and xmt buffers. 35521769Sjkh * By default, I use the first 3/4 of the memory for the rcv buffer, 35621769Sjkh * and the remaining 1/4 of the memory for the xmt buffer. 35721769Sjkh */ 35821769Sjkh sc->rx_mem_size = sc->mem_size * 3 / 4; 35921769Sjkh sc->tx_mem_size = sc->mem_size - sc->rx_mem_size; 36021769Sjkh sc->rx_lower_limit = 0x0000; 36121769Sjkh sc->rx_upper_limit = sc->rx_mem_size - 2; 36221769Sjkh sc->tx_lower_limit = sc->rx_mem_size; 36321769Sjkh sc->tx_upper_limit = sc->mem_size - 2; 364131192Simp CSR_WRITE_1(sc, RCV_LOWER_LIMIT_REG, sc->rx_lower_limit >> 8); 365131192Simp CSR_WRITE_1(sc, RCV_UPPER_LIMIT_REG, sc->rx_upper_limit >> 8); 366131192Simp CSR_WRITE_1(sc, XMT_LOWER_LIMIT_REG, sc->tx_lower_limit >> 8); 367131192Simp CSR_WRITE_1(sc, XMT_UPPER_LIMIT_REG, sc->tx_upper_limit >> 8); 36821769Sjkh 36921769Sjkh /* 37021769Sjkh * Enable receive and transmit interrupts, and clear any pending int. 37121769Sjkh */ 372131192Simp CSR_WRITE_1(sc, REG1, CSR_READ_1(sc, REG1) | TriST_INT); 373131192Simp CSR_WRITE_1(sc, CMD_REG, Bank0_Sel); 374131192Simp CSR_WRITE_1(sc, MASK_REG, All_Int & ~(Rx_Int | Tx_Int)); 375131192Simp CSR_WRITE_1(sc, STATUS_REG, All_Int); 37621769Sjkh 37721769Sjkh /* 37821769Sjkh * Initialize receive and transmit ring buffers. 37921769Sjkh */ 380131192Simp CSR_WRITE_2(sc, RCV_BAR, sc->rx_lower_limit); 38121769Sjkh sc->rx_head = sc->rx_lower_limit; 382131192Simp CSR_WRITE_2(sc, RCV_STOP_REG, sc->rx_upper_limit | 0xfe); 383131192Simp CSR_WRITE_2(sc, XMT_BAR, sc->tx_lower_limit); 38421769Sjkh sc->tx_head = sc->tx_tail = sc->tx_lower_limit; 38521769Sjkh 386148887Srwatson ifp->if_drv_flags |= IFF_DRV_RUNNING; 387148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 38821769Sjkh DODEBUG(Status, printf("OIDLE init\n");); 389179775Sjhb callout_reset(&sc->timer, hz, ex_watchdog, sc); 39021769Sjkh 391112731Smdodd ex_setmulti(sc); 392112731Smdodd 39321769Sjkh /* 39421769Sjkh * Final reset of the board, and enable operation. 39521769Sjkh */ 396131192Simp CSR_WRITE_1(sc, CMD_REG, Sel_Reset_CMD); 39721769Sjkh DELAY(2); 398131192Simp CSR_WRITE_1(sc, CMD_REG, Rcv_Enable_CMD); 39921769Sjkh 400179775Sjhb ex_start_locked(ifp); 40121769Sjkh 402121816Sbrooks DODEBUG(Start_End, printf("%s: ex_init: finish\n", ifp->if_xname);); 40321769Sjkh} 40421769Sjkh 40555883Smdoddstatic void 40652286Smdoddex_start(struct ifnet *ifp) 40721769Sjkh{ 40852286Smdodd struct ex_softc * sc = ifp->if_softc; 409179775Sjhb 410179775Sjhb EX_LOCK(sc); 411179775Sjhb ex_start_locked(ifp); 412179775Sjhb EX_UNLOCK(sc); 413179775Sjhb} 414179775Sjhb 415179775Sjhbstatic void 416179775Sjhbex_start_locked(struct ifnet *ifp) 417179775Sjhb{ 418179775Sjhb struct ex_softc * sc = ifp->if_softc; 419179775Sjhb int i, len, data_len, avail, dest, next; 42052286Smdodd unsigned char tmp16[2]; 42152286Smdodd struct mbuf * opkt; 42252286Smdodd struct mbuf * m; 42321769Sjkh 42452286Smdodd DODEBUG(Start_End, printf("ex_start%d: start\n", unit);); 42521769Sjkh 42652286Smdodd /* 42752286Smdodd * Main loop: send outgoing packets to network card until there are no 42852286Smdodd * more packets left, or the card cannot accept any more yet. 42952286Smdodd */ 43052286Smdodd while (((opkt = ifp->if_snd.ifq_head) != NULL) && 431148887Srwatson !(ifp->if_drv_flags & IFF_DRV_OACTIVE)) { 43221769Sjkh 43352286Smdodd /* 43452286Smdodd * Ensure there is enough free transmit buffer space for 43552286Smdodd * this packet, including its header. Note: the header 43652286Smdodd * cannot wrap around the end of the transmit buffer and 43752286Smdodd * must be kept together, so we allow space for twice the 43852286Smdodd * length of the header, just in case. 43952286Smdodd */ 44021769Sjkh 44152286Smdodd for (len = 0, m = opkt; m != NULL; m = m->m_next) { 44252286Smdodd len += m->m_len; 44352286Smdodd } 44452286Smdodd 44552286Smdodd data_len = len; 44652286Smdodd 44752286Smdodd DODEBUG(Sent_Pkts, printf("1. Sending packet with %d data bytes. ", data_len);); 44852286Smdodd 44952286Smdodd if (len & 1) { 45052286Smdodd len += XMT_HEADER_LEN + 1; 45152286Smdodd } else { 45252286Smdodd len += XMT_HEADER_LEN; 45352286Smdodd } 45452286Smdodd 45552286Smdodd if ((i = sc->tx_tail - sc->tx_head) >= 0) { 45652286Smdodd avail = sc->tx_mem_size - i; 45752286Smdodd } else { 45852286Smdodd avail = -i; 45952286Smdodd } 46052286Smdodd 46152286Smdodd DODEBUG(Sent_Pkts, printf("i=%d, avail=%d\n", i, avail);); 46252286Smdodd 46352286Smdodd if (avail >= len + XMT_HEADER_LEN) { 46452286Smdodd IF_DEQUEUE(&ifp->if_snd, opkt); 46552286Smdodd 46621769Sjkh#ifdef EX_PSA_INTR 46752286Smdodd /* 46852286Smdodd * Disable rx and tx interrupts, to avoid corruption 46952286Smdodd * of the host address register by interrupt service 47052286Smdodd * routines. 47152286Smdodd * XXX Is this necessary with splimp() enabled? 47252286Smdodd */ 473131192Simp CSR_WRITE_1(sc, MASK_REG, All_Int); 47421769Sjkh#endif 47521769Sjkh 47652286Smdodd /* 47752286Smdodd * Compute the start and end addresses of this 47852286Smdodd * frame in the tx buffer. 47952286Smdodd */ 48052286Smdodd dest = sc->tx_tail; 48152286Smdodd next = dest + len; 48221769Sjkh 48352286Smdodd if (next > sc->tx_upper_limit) { 48452286Smdodd if ((sc->tx_upper_limit + 2 - sc->tx_tail) <= 48552286Smdodd XMT_HEADER_LEN) { 48652286Smdodd dest = sc->tx_lower_limit; 48752286Smdodd next = dest + len; 48855881Smdodd } else { 48955881Smdodd next = sc->tx_lower_limit + 49055881Smdodd next - sc->tx_upper_limit - 2; 49152286Smdodd } 49252286Smdodd } 49321769Sjkh 49452286Smdodd /* 49552286Smdodd * Build the packet frame in the card's ring buffer. 49652286Smdodd */ 49752286Smdodd DODEBUG(Sent_Pkts, printf("2. dest=%d, next=%d. ", dest, next);); 49821769Sjkh 499131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, dest); 500131192Simp CSR_WRITE_2(sc, IO_PORT_REG, Transmit_CMD); 501131192Simp CSR_WRITE_2(sc, IO_PORT_REG, 0); 502131192Simp CSR_WRITE_2(sc, IO_PORT_REG, next); 503131192Simp CSR_WRITE_2(sc, IO_PORT_REG, data_len); 50421769Sjkh 50552286Smdodd /* 50652286Smdodd * Output the packet data to the card. Ensure all 50752286Smdodd * transfers are 16-bit wide, even if individual 50852286Smdodd * mbufs have odd length. 50952286Smdodd */ 51052286Smdodd for (m = opkt, i = 0; m != NULL; m = m->m_next) { 51152286Smdodd DODEBUG(Sent_Pkts, printf("[%d]", m->m_len);); 51252286Smdodd if (i) { 51352286Smdodd tmp16[1] = *(mtod(m, caddr_t)); 514131192Simp CSR_WRITE_MULTI_2(sc, IO_PORT_REG, 515131192Simp (uint16_t *) tmp16, 1); 51652286Smdodd } 517131192Simp CSR_WRITE_MULTI_2(sc, IO_PORT_REG, 518131192Simp (uint16_t *) (mtod(m, caddr_t) + i), 519131192Simp (m->m_len - i) / 2); 52052286Smdodd if ((i = (m->m_len - i) & 1) != 0) { 52152286Smdodd tmp16[0] = *(mtod(m, caddr_t) + 52252286Smdodd m->m_len - 1); 52352286Smdodd } 52452286Smdodd } 525131192Simp if (i) 526131192Simp CSR_WRITE_MULTI_2(sc, IO_PORT_REG, 527131192Simp (uint16_t *) tmp16, 1); 52855881Smdodd /* 52955881Smdodd * If there were other frames chained, update the 53055881Smdodd * chain in the last one. 53155881Smdodd */ 53255881Smdodd if (sc->tx_head != sc->tx_tail) { 53355881Smdodd if (sc->tx_tail != dest) { 534131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, 53555881Smdodd sc->tx_last + XMT_Chain_Point); 536131192Simp CSR_WRITE_2(sc, IO_PORT_REG, dest); 53752286Smdodd } 538131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, 53955881Smdodd sc->tx_last + XMT_Byte_Count); 540131192Simp i = CSR_READ_2(sc, IO_PORT_REG); 541131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, 54255881Smdodd sc->tx_last + XMT_Byte_Count); 543131192Simp CSR_WRITE_2(sc, IO_PORT_REG, i | Ch_bit); 54455881Smdodd } 54555881Smdodd 54655881Smdodd /* 54755881Smdodd * Resume normal operation of the card: 54855881Smdodd * - Make a dummy read to flush the DRAM write 54955881Smdodd * pipeline. 55055881Smdodd * - Enable receive and transmit interrupts. 55155881Smdodd * - Send Transmit or Resume_XMT command, as 55255881Smdodd * appropriate. 55355881Smdodd */ 554131192Simp CSR_READ_2(sc, IO_PORT_REG); 55521769Sjkh#ifdef EX_PSA_INTR 556131192Simp CSR_WRITE_1(sc, MASK_REG, All_Int & ~(Rx_Int | Tx_Int)); 55721769Sjkh#endif 55855881Smdodd if (sc->tx_head == sc->tx_tail) { 559131192Simp CSR_WRITE_2(sc, XMT_BAR, dest); 560131192Simp CSR_WRITE_1(sc, CMD_REG, Transmit_CMD); 56155881Smdodd sc->tx_head = dest; 56255881Smdodd DODEBUG(Sent_Pkts, printf("Transmit\n");); 56352286Smdodd } else { 564131192Simp CSR_WRITE_1(sc, CMD_REG, Resume_XMT_List_CMD); 56555881Smdodd DODEBUG(Sent_Pkts, printf("Resume\n");); 56652286Smdodd } 56755881Smdodd 56855881Smdodd sc->tx_last = dest; 56955881Smdodd sc->tx_tail = next; 57055881Smdodd 571106937Ssam BPF_MTAP(ifp, opkt); 57255881Smdodd 573179775Sjhb sc->tx_timeout = 2; 57455881Smdodd ifp->if_opackets++; 57555881Smdodd m_freem(opkt); 57655881Smdodd } else { 577148887Srwatson ifp->if_drv_flags |= IFF_DRV_OACTIVE; 57855881Smdodd DODEBUG(Status, printf("OACTIVE start\n");); 57952286Smdodd } 58021769Sjkh } 58121769Sjkh 58252286Smdodd DODEBUG(Start_End, printf("ex_start%d: finish\n", unit);); 58321769Sjkh} 58421769Sjkh 58566440Simpvoid 58652286Smdoddex_stop(struct ex_softc *sc) 58721769Sjkh{ 588131192Simp 58952286Smdodd DODEBUG(Start_End, printf("ex_stop%d: start\n", unit);); 59021769Sjkh 591179775Sjhb EX_ASSERT_LOCKED(sc); 59252286Smdodd /* 59352286Smdodd * Disable card operation: 59452286Smdodd * - Disable the interrupt line. 59552286Smdodd * - Flush transmission and disable reception. 59652286Smdodd * - Mask and clear all interrupts. 59752286Smdodd * - Reset the 82595. 59852286Smdodd */ 599131192Simp CSR_WRITE_1(sc, CMD_REG, Bank1_Sel); 600131192Simp CSR_WRITE_1(sc, REG1, CSR_READ_1(sc, REG1) & ~TriST_INT); 601131192Simp CSR_WRITE_1(sc, CMD_REG, Bank0_Sel); 602131192Simp CSR_WRITE_1(sc, CMD_REG, Rcv_Stop); 60352286Smdodd sc->tx_head = sc->tx_tail = sc->tx_lower_limit; 60452286Smdodd 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. */ 605131192Simp CSR_WRITE_1(sc, MASK_REG, All_Int); 606131192Simp CSR_WRITE_1(sc, STATUS_REG, All_Int); 607131192Simp CSR_WRITE_1(sc, CMD_REG, Reset_CMD); 60852286Smdodd DELAY(200); 609179775Sjhb sc->ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 610179775Sjhb sc->tx_timeout = 0; 611179775Sjhb callout_stop(&sc->timer); 61221769Sjkh 61352286Smdodd DODEBUG(Start_End, printf("ex_stop%d: finish\n", unit);); 61452286Smdodd 61552286Smdodd return; 61621769Sjkh} 61721769Sjkh 61859816Smdoddvoid 61955883Smdoddex_intr(void *arg) 62021769Sjkh{ 621131192Simp struct ex_softc *sc = (struct ex_softc *)arg; 622147256Sbrooks struct ifnet *ifp = sc->ifp; 623131192Simp int int_status, send_pkts; 624131192Simp int loops = 100; 62521769Sjkh 62655883Smdodd DODEBUG(Start_End, printf("ex_intr%d: start\n", unit);); 62721769Sjkh 628179775Sjhb EX_LOCK(sc); 62952286Smdodd send_pkts = 0; 630131192Simp while (loops-- > 0 && 631131192Simp (int_status = CSR_READ_1(sc, STATUS_REG)) & (Tx_Int | Rx_Int)) { 632131192Simp /* don't loop forever */ 633131192Simp if (int_status == 0xff) 634131192Simp break; 63552286Smdodd if (int_status & Rx_Int) { 636131192Simp CSR_WRITE_1(sc, STATUS_REG, Rx_Int); 63752286Smdodd ex_rx_intr(sc); 63852286Smdodd } else if (int_status & Tx_Int) { 639131192Simp CSR_WRITE_1(sc, STATUS_REG, Tx_Int); 64052286Smdodd ex_tx_intr(sc); 64152286Smdodd send_pkts = 1; 64252286Smdodd } 64352286Smdodd } 644131192Simp if (loops == 0) 645131192Simp printf("100 loops are not enough\n"); 64621769Sjkh 64752286Smdodd /* 64852286Smdodd * If any packet has been transmitted, and there are queued packets to 64952286Smdodd * be sent, attempt to send more packets to the network card. 65052286Smdodd */ 651131192Simp if (send_pkts && (ifp->if_snd.ifq_head != NULL)) 652179775Sjhb ex_start_locked(ifp); 653179775Sjhb EX_UNLOCK(sc); 65452286Smdodd 65555883Smdodd DODEBUG(Start_End, printf("ex_intr%d: finish\n", unit);); 65652286Smdodd 65752286Smdodd return; 65821769Sjkh} 65921769Sjkh 66052286Smdoddstatic void 66152286Smdoddex_tx_intr(struct ex_softc *sc) 66221769Sjkh{ 663147256Sbrooks struct ifnet * ifp = sc->ifp; 66452286Smdodd int tx_status; 66521769Sjkh 66652286Smdodd DODEBUG(Start_End, printf("ex_tx_intr%d: start\n", unit);); 66721769Sjkh 66852286Smdodd /* 66952286Smdodd * - Cancel the watchdog. 67052286Smdodd * For all packets transmitted since last transmit interrupt: 67152286Smdodd * - Advance chain pointer to next queued packet. 67252286Smdodd * - Update statistics. 67352286Smdodd */ 67421769Sjkh 675179775Sjhb sc->tx_timeout = 0; 67621769Sjkh 67752286Smdodd while (sc->tx_head != sc->tx_tail) { 678131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, sc->tx_head); 67921769Sjkh 680131192Simp if (! CSR_READ_2(sc, IO_PORT_REG) & Done_bit) 68152286Smdodd break; 68221769Sjkh 683131192Simp tx_status = CSR_READ_2(sc, IO_PORT_REG); 684131192Simp sc->tx_head = CSR_READ_2(sc, IO_PORT_REG); 68552286Smdodd 68652286Smdodd if (tx_status & TX_OK_bit) { 68752286Smdodd ifp->if_opackets++; 68852286Smdodd } else { 68952286Smdodd ifp->if_oerrors++; 69052286Smdodd } 69152286Smdodd 69252286Smdodd ifp->if_collisions += tx_status & No_Collisions_bits; 69352286Smdodd } 69452286Smdodd 69552286Smdodd /* 69652286Smdodd * The card should be ready to accept more packets now. 69752286Smdodd */ 69852286Smdodd 699148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 70052286Smdodd 70152286Smdodd DODEBUG(Status, printf("OIDLE tx_intr\n");); 70252286Smdodd DODEBUG(Start_End, printf("ex_tx_intr%d: finish\n", unit);); 70352286Smdodd 70452286Smdodd return; 70521769Sjkh} 70621769Sjkh 70752286Smdoddstatic void 70852286Smdoddex_rx_intr(struct ex_softc *sc) 70921769Sjkh{ 710147256Sbrooks struct ifnet * ifp = sc->ifp; 71152286Smdodd int rx_status; 71252286Smdodd int pkt_len; 71352286Smdodd int QQQ; 71452286Smdodd struct mbuf * m; 71552286Smdodd struct mbuf * ipkt; 71652286Smdodd struct ether_header * eh; 71721769Sjkh 71852286Smdodd DODEBUG(Start_End, printf("ex_rx_intr%d: start\n", unit);); 71921769Sjkh 72052286Smdodd /* 72152286Smdodd * For all packets received since last receive interrupt: 72252286Smdodd * - If packet ok, read it into a new mbuf and queue it to interface, 72352286Smdodd * updating statistics. 72452286Smdodd * - If packet bad, just discard it, and update statistics. 72552286Smdodd * Finally, advance receive stop limit in card's memory to new location. 72652286Smdodd */ 72721769Sjkh 728131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, sc->rx_head); 72921769Sjkh 730131192Simp while (CSR_READ_2(sc, IO_PORT_REG) == RCV_Done) { 73152286Smdodd 732131192Simp rx_status = CSR_READ_2(sc, IO_PORT_REG); 733131192Simp sc->rx_head = CSR_READ_2(sc, IO_PORT_REG); 734131192Simp QQQ = pkt_len = CSR_READ_2(sc, IO_PORT_REG); 73552286Smdodd 73652286Smdodd if (rx_status & RCV_OK_bit) { 737111119Simp MGETHDR(m, M_DONTWAIT, MT_DATA); 73852286Smdodd ipkt = m; 73952286Smdodd if (ipkt == NULL) { 74052286Smdodd ifp->if_iqdrops++; 74152286Smdodd } else { 74252286Smdodd ipkt->m_pkthdr.rcvif = ifp; 74352286Smdodd ipkt->m_pkthdr.len = pkt_len; 74452286Smdodd ipkt->m_len = MHLEN; 74552286Smdodd 74652286Smdodd while (pkt_len > 0) { 747136625Sglebius if (pkt_len >= MINCLSIZE) { 748111119Simp MCLGET(m, M_DONTWAIT); 74952286Smdodd if (m->m_flags & M_EXT) { 75052286Smdodd m->m_len = MCLBYTES; 75152286Smdodd } else { 75252286Smdodd m_freem(ipkt); 75352286Smdodd ifp->if_iqdrops++; 75452286Smdodd goto rx_another; 75552286Smdodd } 75652286Smdodd } 75752286Smdodd m->m_len = min(m->m_len, pkt_len); 75852286Smdodd 75921769Sjkh /* 76021769Sjkh * NOTE: I'm assuming that all mbufs allocated are of even length, 76121769Sjkh * except for the last one in an odd-length packet. 76221769Sjkh */ 76352286Smdodd 764131192Simp CSR_READ_MULTI_2(sc, IO_PORT_REG, 765131192Simp mtod(m, uint16_t *), m->m_len / 2); 76652286Smdodd 76752286Smdodd if (m->m_len & 1) { 768131192Simp *(mtod(m, caddr_t) + m->m_len - 1) = CSR_READ_1(sc, IO_PORT_REG); 76952286Smdodd } 77052286Smdodd pkt_len -= m->m_len; 77152286Smdodd 77252286Smdodd if (pkt_len > 0) { 773111119Simp MGET(m->m_next, M_DONTWAIT, MT_DATA); 77452286Smdodd if (m->m_next == NULL) { 77552286Smdodd m_freem(ipkt); 77652286Smdodd ifp->if_iqdrops++; 77752286Smdodd goto rx_another; 77852286Smdodd } 77952286Smdodd m = m->m_next; 78052286Smdodd m->m_len = MLEN; 78152286Smdodd } 78252286Smdodd } 78352286Smdodd eh = mtod(ipkt, struct ether_header *); 78452286Smdodd#ifdef EXDEBUG 78552286Smdodd if (debug_mask & Rcvd_Pkts) { 78652286Smdodd if ((eh->ether_dhost[5] != 0xff) || (eh->ether_dhost[0] != 0xff)) { 78752286Smdodd printf("Receive packet with %d data bytes: %6D -> ", QQQ, eh->ether_shost, ":"); 78852286Smdodd printf("%6D\n", eh->ether_dhost, ":"); 78952286Smdodd } /* QQQ */ 79021769Sjkh } 79121769Sjkh#endif 792179775Sjhb EX_UNLOCK(sc); 793106937Ssam (*ifp->if_input)(ifp, ipkt); 794179775Sjhb EX_LOCK(sc); 79552286Smdodd ifp->if_ipackets++; 79652286Smdodd } 79752286Smdodd } else { 79852286Smdodd ifp->if_ierrors++; 79921769Sjkh } 800131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, sc->rx_head); 80152286Smdoddrx_another: ; 80221769Sjkh } 80321769Sjkh 80452286Smdodd if (sc->rx_head < sc->rx_lower_limit + 2) 805131192Simp CSR_WRITE_2(sc, RCV_STOP_REG, sc->rx_upper_limit); 80652286Smdodd else 807131192Simp CSR_WRITE_2(sc, RCV_STOP_REG, sc->rx_head - 2); 80852286Smdodd 80952286Smdodd DODEBUG(Start_End, printf("ex_rx_intr%d: finish\n", unit);); 81052286Smdodd 81152286Smdodd return; 81221769Sjkh} 81321769Sjkh 81421769Sjkh 81555883Smdoddstatic int 81655883Smdoddex_ioctl(register struct ifnet *ifp, u_long cmd, caddr_t data) 81721769Sjkh{ 81852286Smdodd struct ex_softc * sc = ifp->if_softc; 81957987Smdodd struct ifreq * ifr = (struct ifreq *)data; 82052286Smdodd int error = 0; 82121769Sjkh 822121816Sbrooks DODEBUG(Start_End, printf("%s: ex_ioctl: start ", ifp->if_xname);); 82321769Sjkh 82452286Smdodd switch(cmd) { 82552286Smdodd case SIOCSIFADDR: 82652286Smdodd case SIOCGIFADDR: 82752286Smdodd case SIOCSIFMTU: 82852286Smdodd error = ether_ioctl(ifp, cmd, data); 82952286Smdodd break; 83021769Sjkh 83152286Smdodd case SIOCSIFFLAGS: 83252286Smdodd DODEBUG(Start_End, printf("SIOCSIFFLAGS");); 833179775Sjhb EX_LOCK(sc); 83452286Smdodd if ((ifp->if_flags & IFF_UP) == 0 && 835148887Srwatson (ifp->if_drv_flags & IFF_DRV_RUNNING)) { 83652286Smdodd ex_stop(sc); 83752286Smdodd } else { 838179775Sjhb ex_init_locked(sc); 83952286Smdodd } 840179775Sjhb EX_UNLOCK(sc); 84152286Smdodd break; 84252286Smdodd case SIOCADDMULTI: 84352286Smdodd case SIOCDELMULTI: 844112731Smdodd ex_init(sc); 845112731Smdodd error = 0; 84652286Smdodd break; 84757987Smdodd case SIOCSIFMEDIA: 84857987Smdodd case SIOCGIFMEDIA: 84957987Smdodd error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, cmd); 85057987Smdodd break; 85152286Smdodd default: 85252286Smdodd DODEBUG(Start_End, printf("unknown");); 85352286Smdodd error = EINVAL; 85452286Smdodd } 85521769Sjkh 856121816Sbrooks DODEBUG(Start_End, printf("\n%s: ex_ioctl: finish\n", ifp->if_xname);); 85752286Smdodd 85852286Smdodd return(error); 85921769Sjkh} 86021769Sjkh 861112731Smdoddstatic void 862112731Smdoddex_setmulti(struct ex_softc *sc) 863112731Smdodd{ 864112731Smdodd struct ifnet *ifp; 865112731Smdodd struct ifmultiaddr *maddr; 866131192Simp uint16_t *addr; 867112731Smdodd int count; 868112731Smdodd int timeout, status; 869112731Smdodd 870147256Sbrooks ifp = sc->ifp; 87121769Sjkh 872112731Smdodd count = 0; 873148654Srwatson IF_ADDR_LOCK(ifp); 874112731Smdodd TAILQ_FOREACH(maddr, &ifp->if_multiaddrs, ifma_link) { 875112731Smdodd if (maddr->ifma_addr->sa_family != AF_LINK) 876112731Smdodd continue; 877112731Smdodd count++; 878112731Smdodd } 879148654Srwatson IF_ADDR_UNLOCK(ifp); 880112731Smdodd 881112731Smdodd if ((ifp->if_flags & IFF_PROMISC) || (ifp->if_flags & IFF_ALLMULTI) 882112731Smdodd || count > 63) { 883112731Smdodd /* Interface is in promiscuous mode or there are too many 884112731Smdodd * multicast addresses for the card to handle */ 885131192Simp CSR_WRITE_1(sc, CMD_REG, Bank2_Sel); 886131192Simp CSR_WRITE_1(sc, REG2, CSR_READ_1(sc, REG2) | Promisc_Mode); 887131192Simp CSR_WRITE_1(sc, REG3, CSR_READ_1(sc, REG3)); 888131192Simp CSR_WRITE_1(sc, CMD_REG, Bank0_Sel); 889112731Smdodd } 890112731Smdodd else if ((ifp->if_flags & IFF_MULTICAST) && (count > 0)) { 891112731Smdodd /* Program multicast addresses plus our MAC address 892112731Smdodd * into the filter */ 893131192Simp CSR_WRITE_1(sc, CMD_REG, Bank2_Sel); 894131192Simp CSR_WRITE_1(sc, REG2, CSR_READ_1(sc, REG2) | Multi_IA); 895131192Simp CSR_WRITE_1(sc, REG3, CSR_READ_1(sc, REG3)); 896131192Simp CSR_WRITE_1(sc, CMD_REG, Bank0_Sel); 897112731Smdodd 898112731Smdodd /* Borrow space from TX buffer; this should be safe 899112731Smdodd * as this is only called from ex_init */ 900112731Smdodd 901131192Simp CSR_WRITE_2(sc, HOST_ADDR_REG, sc->tx_lower_limit); 902131192Simp CSR_WRITE_2(sc, IO_PORT_REG, MC_Setup_CMD); 903131192Simp CSR_WRITE_2(sc, IO_PORT_REG, 0); 904131192Simp CSR_WRITE_2(sc, IO_PORT_REG, 0); 905131192Simp CSR_WRITE_2(sc, IO_PORT_REG, (count + 1) * 6); 906148654Srwatson 907148654Srwatson IF_ADDR_LOCK(ifp); 908112731Smdodd TAILQ_FOREACH(maddr, &ifp->if_multiaddrs, ifma_link) { 909112731Smdodd if (maddr->ifma_addr->sa_family != AF_LINK) 910112731Smdodd continue; 911112731Smdodd 912131192Simp addr = (uint16_t*)LLADDR((struct sockaddr_dl *) 913112731Smdodd maddr->ifma_addr); 914131192Simp CSR_WRITE_2(sc, IO_PORT_REG, *addr++); 915131192Simp CSR_WRITE_2(sc, IO_PORT_REG, *addr++); 916131192Simp CSR_WRITE_2(sc, IO_PORT_REG, *addr++); 917112731Smdodd } 918148654Srwatson IF_ADDR_UNLOCK(ifp); 919112731Smdodd 920112731Smdodd /* Program our MAC address as well */ 921112731Smdodd /* XXX: Is this necessary? The Linux driver does this 922112731Smdodd * but the NetBSD driver does not */ 923152315Sru addr = (uint16_t*)IF_LLADDR(sc->ifp); 924131192Simp CSR_WRITE_2(sc, IO_PORT_REG, *addr++); 925131192Simp CSR_WRITE_2(sc, IO_PORT_REG, *addr++); 926131192Simp CSR_WRITE_2(sc, IO_PORT_REG, *addr++); 927112731Smdodd 928131192Simp CSR_READ_2(sc, IO_PORT_REG); 929131192Simp CSR_WRITE_2(sc, XMT_BAR, sc->tx_lower_limit); 930131192Simp CSR_WRITE_1(sc, CMD_REG, MC_Setup_CMD); 931112731Smdodd 932112731Smdodd sc->tx_head = sc->tx_lower_limit; 933112731Smdodd sc->tx_tail = sc->tx_head + XMT_HEADER_LEN + (count + 1) * 6; 934112731Smdodd 935112731Smdodd for (timeout=0; timeout<100; timeout++) { 936112731Smdodd DELAY(2); 937131192Simp if ((CSR_READ_1(sc, STATUS_REG) & Exec_Int) == 0) 938112731Smdodd continue; 939112731Smdodd 940131192Simp status = CSR_READ_1(sc, CMD_REG); 941131192Simp CSR_WRITE_1(sc, STATUS_REG, Exec_Int); 942112731Smdodd break; 943112731Smdodd } 944112731Smdodd 945112731Smdodd sc->tx_head = sc->tx_tail; 946112731Smdodd } 947112731Smdodd else 948112731Smdodd { 949112731Smdodd /* No multicast or promiscuous mode */ 950131192Simp CSR_WRITE_1(sc, CMD_REG, Bank2_Sel); 951131192Simp CSR_WRITE_1(sc, REG2, CSR_READ_1(sc, REG2) & 0xDE); 952112731Smdodd /* ~(Multi_IA | Promisc_Mode) */ 953131192Simp CSR_WRITE_1(sc, REG3, CSR_READ_1(sc, REG3)); 954131192Simp CSR_WRITE_1(sc, CMD_REG, Bank0_Sel); 955112731Smdodd } 956112731Smdodd} 957112731Smdodd 95852286Smdoddstatic void 95952286Smdoddex_reset(struct ex_softc *sc) 96021769Sjkh{ 96121769Sjkh 96252286Smdodd DODEBUG(Start_End, printf("ex_reset%d: start\n", unit);); 96321769Sjkh 964179775Sjhb EX_ASSERT_LOCKED(sc); 96552286Smdodd ex_stop(sc); 966179775Sjhb ex_init_locked(sc); 96721769Sjkh 96852286Smdodd DODEBUG(Start_End, printf("ex_reset%d: finish\n", unit);); 96952286Smdodd 97052286Smdodd return; 97121769Sjkh} 97221769Sjkh 97352286Smdoddstatic void 974179775Sjhbex_watchdog(void *arg) 97521769Sjkh{ 976179775Sjhb struct ex_softc * sc = arg; 977179775Sjhb struct ifnet *ifp = sc->ifp; 97821769Sjkh 979179775Sjhb if (sc->tx_timeout && --sc->tx_timeout == 0) { 980179775Sjhb DODEBUG(Start_End, if_printf(ifp, "ex_watchdog: start\n");); 98121769Sjkh 982179775Sjhb ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 98321769Sjkh 984179775Sjhb DODEBUG(Status, printf("OIDLE watchdog\n");); 98552286Smdodd 986179775Sjhb ifp->if_oerrors++; 987179775Sjhb ex_reset(sc); 988179775Sjhb ex_start_locked(ifp); 98952286Smdodd 990179775Sjhb DODEBUG(Start_End, if_printf(ifp, "ex_watchdog: finish\n");); 991179775Sjhb } 99252286Smdodd 993179775Sjhb callout_reset(&sc->timer, hz, ex_watchdog, sc); 99421769Sjkh} 99521769Sjkh 99657987Smdoddstatic int 997131192Simpex_get_media(struct ex_softc *sc) 99859816Smdodd{ 999112764Smdodd int current; 1000112764Smdodd int media; 100159816Smdodd 1002131192Simp media = ex_eeprom_read(sc, EE_W5); 1003112764Smdodd 1004131192Simp CSR_WRITE_1(sc, CMD_REG, Bank2_Sel); 1005131192Simp current = CSR_READ_1(sc, REG3); 1006131192Simp CSR_WRITE_1(sc, CMD_REG, Bank0_Sel); 100759816Smdodd 1008112764Smdodd if ((current & TPE_bit) && (media & EE_W5_PORT_TPE)) 100959816Smdodd return(IFM_ETHER|IFM_10_T); 1010112764Smdodd if ((current & BNC_bit) && (media & EE_W5_PORT_BNC)) 101159816Smdodd return(IFM_ETHER|IFM_10_2); 101259816Smdodd 1013112764Smdodd if (media & EE_W5_PORT_AUI) 1014112764Smdodd return (IFM_ETHER|IFM_10_5); 1015112764Smdodd 1016112764Smdodd return (IFM_ETHER|IFM_AUTO); 101759816Smdodd} 101859816Smdodd 101959816Smdoddstatic int 1020131192Simpex_ifmedia_upd(ifp) 102157987Smdodd struct ifnet * ifp; 102257987Smdodd{ 1023112764Smdodd struct ex_softc * sc = ifp->if_softc; 102421769Sjkh 1025112764Smdodd if (IFM_TYPE(sc->ifmedia.ifm_media) != IFM_ETHER) 1026112764Smdodd return EINVAL; 1027112764Smdodd 102857987Smdodd return (0); 102957987Smdodd} 103057987Smdodd 103157987Smdoddstatic void 103257987Smdoddex_ifmedia_sts(ifp, ifmr) 103357987Smdodd struct ifnet * ifp; 103457987Smdodd struct ifmediareq * ifmr; 103557987Smdodd{ 103657987Smdodd struct ex_softc * sc = ifp->if_softc; 103757987Smdodd 1038179775Sjhb EX_LOCK(sc); 1039131192Simp ifmr->ifm_active = ex_get_media(sc); 1040112764Smdodd ifmr->ifm_status = IFM_AVALID | IFM_ACTIVE; 1041179775Sjhb EX_UNLOCK(sc); 104257987Smdodd 104357987Smdodd return; 104457987Smdodd} 104557987Smdodd 104659816Smdoddu_short 1047131192Simpex_eeprom_read(struct ex_softc *sc, int location) 104821769Sjkh{ 104921769Sjkh int i; 105021769Sjkh u_short data = 0; 105121769Sjkh int read_cmd = location | EE_READ_CMD; 105221769Sjkh short ctrl_val = EECS; 105321769Sjkh 1054131192Simp CSR_WRITE_1(sc, CMD_REG, Bank2_Sel); 1055131192Simp CSR_WRITE_1(sc, EEPROM_REG, EECS); 105621769Sjkh for (i = 8; i >= 0; i--) { 105721769Sjkh short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI : ctrl_val; 1058131192Simp CSR_WRITE_1(sc, EEPROM_REG, outval); 1059131192Simp CSR_WRITE_1(sc, EEPROM_REG, outval | EESK); 106021769Sjkh DELAY(3); 1061131192Simp CSR_WRITE_1(sc, EEPROM_REG, outval); 106221769Sjkh DELAY(2); 106321769Sjkh } 1064131192Simp CSR_WRITE_1(sc, EEPROM_REG, ctrl_val); 106521769Sjkh 106621769Sjkh for (i = 16; i > 0; i--) { 1067131192Simp CSR_WRITE_1(sc, EEPROM_REG, ctrl_val | EESK); 106821769Sjkh DELAY(3); 1069131192Simp data = (data << 1) | 1070131192Simp ((CSR_READ_1(sc, EEPROM_REG) & EEDO) ? 1 : 0); 1071131192Simp CSR_WRITE_1(sc, EEPROM_REG, ctrl_val); 107221769Sjkh DELAY(2); 107321769Sjkh } 107421769Sjkh 107521769Sjkh ctrl_val &= ~EECS; 1076131192Simp CSR_WRITE_1(sc, EEPROM_REG, ctrl_val | EESK); 107721769Sjkh DELAY(3); 1078131192Simp CSR_WRITE_1(sc, EEPROM_REG, ctrl_val); 107921769Sjkh DELAY(2); 1080131192Simp CSR_WRITE_1(sc, CMD_REG, Bank0_Sel); 108121769Sjkh return(data); 108221769Sjkh} 1083