2 * Copyright (c) 1996, Javier MartÃn Rueda (jmrueda@diatel.upm.es)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/ex/if_ex.c,v 1.26.2.3 2001/03/05 05:33:20 imp Exp $
28 * $DragonFly: src/sys/dev/netif/ex/if_ex.c,v 1.15 2005/02/18 22:59:32 joerg Exp $
30 * MAINTAINER: Matthew N. Dodd <winter@jurai.net>
35 * Intel EtherExpress Pro/10, Pro/10+ Ethernet driver
39 * 30-Oct-1996: first beta version. Inet and BPF supported, but no multicast.
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/sockio.h>
47 #include <sys/socket.h>
49 #include <sys/module.h>
52 #include <machine/bus.h>
53 #include <machine/resource.h>
57 #include <net/ifq_var.h>
59 #include <net/if_arp.h>
60 #include <net/if_media.h>
61 #include <net/ethernet.h>
64 #include <netinet/in.h>
65 #include <netinet/if_ether.h>
66 #include <machine/clock.h>
69 #include <bus/isa/isavar.h>
70 #include <bus/isa/pnpvar.h>
75 DECLARE_DUMMY_MODULE(if_ex);
82 static int debug_mask = 0;
83 static int exintr_count = 0;
84 # define DODEBUG(level, action) if (level & debug_mask) action
86 # define DODEBUG(level, action)
90 { -1, -1, 0, 1, -1, 2, -1, -1, -1, 0, 3, 4, -1, -1, -1, -1 };
92 { 9, 3, 5, 10, 11, 0, 0, 0 };
94 char plus_irq2eemap[] =
95 { -1, -1, -1, 0, 1, 2, -1, 3, -1, 4, 5, 6, 7, -1, -1, -1 };
96 u_char plus_ee2irqmap[] =
97 { 3, 4, 5, 7, 9, 10, 11, 12 };
99 /* Network Interface Functions */
100 static void ex_init (void *);
101 static void ex_start (struct ifnet *);
102 static int ex_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
103 static void ex_watchdog (struct ifnet *);
105 /* ifmedia Functions */
106 static int ex_ifmedia_upd (struct ifnet *);
107 static void ex_ifmedia_sts (struct ifnet *, struct ifmediareq *);
109 static int ex_get_media (u_int32_t iobase);
111 static void ex_reset (struct ex_softc *);
113 static void ex_tx_intr (struct ex_softc *);
114 static void ex_rx_intr (struct ex_softc *);
117 look_for_card (u_int32_t iobase)
122 * Check for the i82595 signature, and check that the round robin
123 * counter actually advances.
125 if (((count1 = inb(iobase + ID_REG)) & Id_Mask) != Id_Sig)
127 count2 = inb(iobase + ID_REG);
128 count2 = inb(iobase + ID_REG);
129 count2 = inb(iobase + ID_REG);
131 return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
135 ex_get_address (u_int32_t iobase, u_char *enaddr)
139 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Lo);
140 enaddr[5] = eaddr_tmp & 0xff;
141 enaddr[4] = eaddr_tmp >> 8;
142 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Mid);
143 enaddr[3] = eaddr_tmp & 0xff;
144 enaddr[2] = eaddr_tmp >> 8;
145 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Hi);
146 enaddr[1] = eaddr_tmp & 0xff;
147 enaddr[0] = eaddr_tmp >> 8;
153 ex_card_type (u_char *enaddr)
155 if ((enaddr[0] == 0x00) && (enaddr[1] == 0xA0) && (enaddr[2] == 0xC9))
156 return (CARD_TYPE_EX_10_PLUS);
158 return (CARD_TYPE_EX_10);
162 * Caller is responsible for eventually calling
163 * ex_release_resources() on failure.
166 ex_alloc_resources (device_t dev)
168 struct ex_softc * sc = device_get_softc(dev);
171 sc->ioport = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->ioport_rid,
172 0, ~0, 1, RF_ACTIVE);
174 device_printf(dev, "No I/O space?!\n");
179 sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid,
180 0, ~0, 1, RF_ACTIVE);
183 device_printf(dev, "No IRQ?!\n");
193 ex_release_resources (device_t dev)
195 struct ex_softc * sc = device_get_softc(dev);
198 bus_teardown_intr(dev, sc->irq, sc->ih);
203 bus_release_resource(dev, SYS_RES_IOPORT,
204 sc->ioport_rid, sc->ioport);
209 bus_release_resource(dev, SYS_RES_IRQ,
210 sc->irq_rid, sc->irq);
218 ex_attach(device_t dev)
220 struct ex_softc * sc = device_get_softc(dev);
221 struct ifnet * ifp = &sc->arpcom.ac_if;
222 struct ifmedia * ifm;
223 int unit = device_get_unit(dev);
226 /* work out which set of irq <-> internal tables to use */
227 if (ex_card_type(sc->arpcom.ac_enaddr) == CARD_TYPE_EX_10_PLUS) {
228 sc->irq2ee = plus_irq2eemap;
229 sc->ee2irq = plus_ee2irqmap;
231 sc->irq2ee = irq2eemap;
232 sc->ee2irq = ee2irqmap;
235 sc->mem_size = CARD_RAM_SIZE; /* XXX This should be read from the card itself. */
238 * Initialize the ifnet structure.
241 if_initname(ifp, "ex", unit);
242 ifp->if_mtu = ETHERMTU;
243 ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST /* XXX not done yet. | IFF_MULTICAST */;
244 ifp->if_start = ex_start;
245 ifp->if_ioctl = ex_ioctl;
246 ifp->if_watchdog = ex_watchdog;
247 ifp->if_init = ex_init;
248 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
249 ifq_set_ready(&ifp->if_snd);
251 ifmedia_init(&sc->ifmedia, 0, ex_ifmedia_upd, ex_ifmedia_sts);
253 temp = eeprom_read(sc->iobase, EE_W5);
254 if (temp & EE_W5_PORT_TPE)
255 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
256 if (temp & EE_W5_PORT_BNC)
257 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL);
258 if (temp & EE_W5_PORT_AUI)
259 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL);
261 ifmedia_set(&sc->ifmedia, ex_get_media(sc->iobase));
264 ifm->ifm_media = ifm->ifm_cur->ifm_media;
268 * Attach the interface.
270 ether_ifattach(ifp, sc->arpcom.ac_enaddr);
278 struct ex_softc * sc = (struct ex_softc *) xsc;
279 struct ifnet * ifp = &sc->arpcom.ac_if;
282 int iobase = sc->iobase;
283 unsigned short temp_reg;
285 DODEBUG(Start_End, printf("ex_init%d: start\n", ifp->if_dunit););
287 if (TAILQ_FIRST(&ifp->if_addrhead) == NULL) {
294 * Load the ethernet address into the card.
296 outb(iobase + CMD_REG, Bank2_Sel);
297 temp_reg = inb(iobase + EEPROM_REG);
298 if (temp_reg & Trnoff_Enable) {
299 outb(iobase + EEPROM_REG, temp_reg & ~Trnoff_Enable);
301 for (i = 0; i < ETHER_ADDR_LEN; i++) {
302 outb(iobase + I_ADDR_REG0 + i, sc->arpcom.ac_enaddr[i]);
305 * - Setup transmit chaining and discard bad received frames.
308 * - Set receiving mode.
311 outb(iobase + REG1, inb(iobase + REG1) | Tx_Chn_Int_Md | Tx_Chn_ErStp | Disc_Bad_Fr);
312 outb(iobase + REG2, inb(iobase + REG2) | No_SA_Ins | RX_CRC_InMem);
313 outb(iobase + REG3, inb(iobase + REG3) & 0x3f /* XXX constants. */ );
314 outb(iobase + CMD_REG, Bank1_Sel);
315 outb(iobase + INT_NO_REG, (inb(iobase + INT_NO_REG) & 0xf8) | sc->irq2ee[sc->irq_no]);
318 * Divide the available memory in the card into rcv and xmt buffers.
319 * By default, I use the first 3/4 of the memory for the rcv buffer,
320 * and the remaining 1/4 of the memory for the xmt buffer.
322 sc->rx_mem_size = sc->mem_size * 3 / 4;
323 sc->tx_mem_size = sc->mem_size - sc->rx_mem_size;
324 sc->rx_lower_limit = 0x0000;
325 sc->rx_upper_limit = sc->rx_mem_size - 2;
326 sc->tx_lower_limit = sc->rx_mem_size;
327 sc->tx_upper_limit = sc->mem_size - 2;
328 outb(iobase + RCV_LOWER_LIMIT_REG, sc->rx_lower_limit >> 8);
329 outb(iobase + RCV_UPPER_LIMIT_REG, sc->rx_upper_limit >> 8);
330 outb(iobase + XMT_LOWER_LIMIT_REG, sc->tx_lower_limit >> 8);
331 outb(iobase + XMT_UPPER_LIMIT_REG, sc->tx_upper_limit >> 8);
334 * Enable receive and transmit interrupts, and clear any pending int.
336 outb(iobase + REG1, inb(iobase + REG1) | TriST_INT);
337 outb(iobase + CMD_REG, Bank0_Sel);
338 outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int));
339 outb(iobase + STATUS_REG, All_Int);
342 * Initialize receive and transmit ring buffers.
344 outw(iobase + RCV_BAR, sc->rx_lower_limit);
345 sc->rx_head = sc->rx_lower_limit;
346 outw(iobase + RCV_STOP_REG, sc->rx_upper_limit | 0xfe);
347 outw(iobase + XMT_BAR, sc->tx_lower_limit);
348 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
350 ifp->if_flags |= IFF_RUNNING;
351 ifp->if_flags &= ~IFF_OACTIVE;
352 DODEBUG(Status, printf("OIDLE init\n"););
355 * Final reset of the board, and enable operation.
357 outb(iobase + CMD_REG, Sel_Reset_CMD);
359 outb(iobase + CMD_REG, Rcv_Enable_CMD);
364 DODEBUG(Start_End, printf("ex_init%d: finish\n", ifp->if_dunit););
369 ex_start(struct ifnet *ifp)
371 struct ex_softc * sc = ifp->if_softc;
372 int iobase = sc->iobase;
373 int i, s, len, data_len, avail, dest, next;
374 unsigned char tmp16[2];
378 DODEBUG(Start_End, printf("ex_start%d: start\n", unit););
383 * Main loop: send outgoing packets to network card until there are no
384 * more packets left, or the card cannot accept any more yet.
386 while ((ifp->if_flags & IFF_OACTIVE) == 0) {
387 opkt = ifq_poll(&ifp->if_snd);
392 * Ensure there is enough free transmit buffer space for
393 * this packet, including its header. Note: the header
394 * cannot wrap around the end of the transmit buffer and
395 * must be kept together, so we allow space for twice the
396 * length of the header, just in case.
399 for (len = 0, m = opkt; m != NULL; m = m->m_next) {
405 DODEBUG(Sent_Pkts, printf("1. Sending packet with %d data bytes. ", data_len););
408 len += XMT_HEADER_LEN + 1;
410 len += XMT_HEADER_LEN;
413 if ((i = sc->tx_tail - sc->tx_head) >= 0) {
414 avail = sc->tx_mem_size - i;
419 DODEBUG(Sent_Pkts, printf("i=%d, avail=%d\n", i, avail););
421 if (avail >= len + XMT_HEADER_LEN) {
422 opkt = ifq_dequeue(&ifp->if_snd);
426 * Disable rx and tx interrupts, to avoid corruption
427 * of the host address register by interrupt service
429 * XXX Is this necessary with splimp() enabled?
431 outb(iobase + MASK_REG, All_Int);
435 * Compute the start and end addresses of this
436 * frame in the tx buffer.
441 if (next > sc->tx_upper_limit) {
442 if ((sc->tx_upper_limit + 2 - sc->tx_tail) <=
444 dest = sc->tx_lower_limit;
447 next = sc->tx_lower_limit +
448 next - sc->tx_upper_limit - 2;
453 * Build the packet frame in the card's ring buffer.
455 DODEBUG(Sent_Pkts, printf("2. dest=%d, next=%d. ", dest, next););
457 outw(iobase + HOST_ADDR_REG, dest);
458 outw(iobase + IO_PORT_REG, Transmit_CMD);
459 outw(iobase + IO_PORT_REG, 0);
460 outw(iobase + IO_PORT_REG, next);
461 outw(iobase + IO_PORT_REG, data_len);
464 * Output the packet data to the card. Ensure all
465 * transfers are 16-bit wide, even if individual
466 * mbufs have odd length.
469 for (m = opkt, i = 0; m != NULL; m = m->m_next) {
470 DODEBUG(Sent_Pkts, printf("[%d]", m->m_len););
472 tmp16[1] = *(mtod(m, caddr_t));
473 outsw(iobase + IO_PORT_REG, tmp16, 1);
475 outsw(iobase + IO_PORT_REG,
476 mtod(m, caddr_t) + i, (m->m_len - i) / 2);
478 if ((i = (m->m_len - i) & 1) != 0) {
479 tmp16[0] = *(mtod(m, caddr_t) +
484 outsw(iobase + IO_PORT_REG, tmp16, 1);
488 * If there were other frames chained, update the
489 * chain in the last one.
491 if (sc->tx_head != sc->tx_tail) {
492 if (sc->tx_tail != dest) {
493 outw(iobase + HOST_ADDR_REG,
494 sc->tx_last + XMT_Chain_Point);
495 outw(iobase + IO_PORT_REG, dest);
497 outw(iobase + HOST_ADDR_REG,
498 sc->tx_last + XMT_Byte_Count);
499 i = inw(iobase + IO_PORT_REG);
500 outw(iobase + HOST_ADDR_REG,
501 sc->tx_last + XMT_Byte_Count);
502 outw(iobase + IO_PORT_REG, i | Ch_bit);
506 * Resume normal operation of the card:
507 * - Make a dummy read to flush the DRAM write
509 * - Enable receive and transmit interrupts.
510 * - Send Transmit or Resume_XMT command, as
513 inw(iobase + IO_PORT_REG);
515 outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int));
517 if (sc->tx_head == sc->tx_tail) {
518 outw(iobase + XMT_BAR, dest);
519 outb(iobase + CMD_REG, Transmit_CMD);
521 DODEBUG(Sent_Pkts, printf("Transmit\n"););
523 outb(iobase + CMD_REG, Resume_XMT_List_CMD);
524 DODEBUG(Sent_Pkts, printf("Resume\n"););
536 ifp->if_flags |= IFF_OACTIVE;
537 DODEBUG(Status, printf("OACTIVE start\n"););
543 DODEBUG(Start_End, printf("ex_start%d: finish\n", unit););
547 ex_stop(struct ex_softc *sc)
549 int iobase = sc->iobase;
551 DODEBUG(Start_End, printf("ex_stop%d: start\n", unit););
554 * Disable card operation:
555 * - Disable the interrupt line.
556 * - Flush transmission and disable reception.
557 * - Mask and clear all interrupts.
560 outb(iobase + CMD_REG, Bank1_Sel);
561 outb(iobase + REG1, inb(iobase + REG1) & ~TriST_INT);
562 outb(iobase + CMD_REG, Bank0_Sel);
563 outb(iobase + CMD_REG, Rcv_Stop);
564 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
565 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. */
566 outb(iobase + MASK_REG, All_Int);
567 outb(iobase + STATUS_REG, All_Int);
568 outb(iobase + CMD_REG, Reset_CMD);
571 DODEBUG(Start_End, printf("ex_stop%d: finish\n", unit););
579 struct ex_softc * sc = (struct ex_softc *)arg;
580 struct ifnet * ifp = &sc->arpcom.ac_if;
581 int iobase = sc->iobase;
582 int int_status, send_pkts;
584 DODEBUG(Start_End, printf("ex_intr%d: start\n", unit););
587 if (++exintr_count != 1)
588 printf("WARNING: nested interrupt (%d). Mail the author.\n", exintr_count);
592 while ((int_status = inb(iobase + STATUS_REG)) & (Tx_Int | Rx_Int)) {
593 if (int_status & Rx_Int) {
594 outb(iobase + STATUS_REG, Rx_Int);
597 } else if (int_status & Tx_Int) {
598 outb(iobase + STATUS_REG, Tx_Int);
606 * If any packet has been transmitted, and there are queued packets to
607 * be sent, attempt to send more packets to the network card.
610 if (send_pkts && !ifq_is_empty(&ifp->if_snd))
617 DODEBUG(Start_End, printf("ex_intr%d: finish\n", unit););
623 ex_tx_intr(struct ex_softc *sc)
625 struct ifnet * ifp = &sc->arpcom.ac_if;
626 int iobase = sc->iobase;
629 DODEBUG(Start_End, printf("ex_tx_intr%d: start\n", unit););
632 * - Cancel the watchdog.
633 * For all packets transmitted since last transmit interrupt:
634 * - Advance chain pointer to next queued packet.
635 * - Update statistics.
640 while (sc->tx_head != sc->tx_tail) {
641 outw(iobase + HOST_ADDR_REG, sc->tx_head);
643 if (! inw(iobase + IO_PORT_REG) & Done_bit)
646 tx_status = inw(iobase + IO_PORT_REG);
647 sc->tx_head = inw(iobase + IO_PORT_REG);
649 if (tx_status & TX_OK_bit) {
655 ifp->if_collisions += tx_status & No_Collisions_bits;
659 * The card should be ready to accept more packets now.
662 ifp->if_flags &= ~IFF_OACTIVE;
664 DODEBUG(Status, printf("OIDLE tx_intr\n"););
665 DODEBUG(Start_End, printf("ex_tx_intr%d: finish\n", unit););
671 ex_rx_intr(struct ex_softc *sc)
673 struct ifnet * ifp = &sc->arpcom.ac_if;
674 int iobase = sc->iobase;
681 DODEBUG(Start_End, printf("ex_rx_intr%d: start\n", unit););
684 * For all packets received since last receive interrupt:
685 * - If packet ok, read it into a new mbuf and queue it to interface,
686 * updating statistics.
687 * - If packet bad, just discard it, and update statistics.
688 * Finally, advance receive stop limit in card's memory to new location.
691 outw(iobase + HOST_ADDR_REG, sc->rx_head);
693 while (inw(iobase + IO_PORT_REG) == RCV_Done) {
695 rx_status = inw(iobase + IO_PORT_REG);
696 sc->rx_head = inw(iobase + IO_PORT_REG);
697 QQQ = pkt_len = inw(iobase + IO_PORT_REG);
699 if (rx_status & RCV_OK_bit) {
700 MGETHDR(m, MB_DONTWAIT, MT_DATA);
705 ipkt->m_pkthdr.rcvif = ifp;
706 ipkt->m_pkthdr.len = pkt_len;
709 while (pkt_len > 0) {
710 if (pkt_len > MINCLSIZE) {
711 MCLGET(m, MB_DONTWAIT);
712 if (m->m_flags & M_EXT) {
720 m->m_len = min(m->m_len, pkt_len);
723 * NOTE: I'm assuming that all mbufs allocated are of even length,
724 * except for the last one in an odd-length packet.
727 insw(iobase + IO_PORT_REG,
728 mtod(m, caddr_t), m->m_len / 2);
731 *(mtod(m, caddr_t) + m->m_len - 1) = inb(iobase + IO_PORT_REG);
736 MGET(m->m_next, MB_DONTWAIT, MT_DATA);
737 if (m->m_next == NULL) {
746 (*ifp->if_input)(ifp, ipkt);
752 outw(iobase + HOST_ADDR_REG, sc->rx_head);
756 if (sc->rx_head < sc->rx_lower_limit + 2)
757 outw(iobase + RCV_STOP_REG, sc->rx_upper_limit);
759 outw(iobase + RCV_STOP_REG, sc->rx_head - 2);
761 DODEBUG(Start_End, printf("ex_rx_intr%d: finish\n", unit););
768 ex_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
770 struct ex_softc * sc = ifp->if_softc;
771 struct ifreq * ifr = (struct ifreq *)data;
775 DODEBUG(Start_End, printf("ex_ioctl%d: start ", ifp->if_dunit););
783 error = ether_ioctl(ifp, cmd, data);
787 DODEBUG(Start_End, printf("SIOCSIFFLAGS"););
788 if ((ifp->if_flags & IFF_UP) == 0 &&
789 (ifp->if_flags & IFF_RUNNING)) {
791 ifp->if_flags &= ~IFF_RUNNING;
799 DODEBUG(Start_End, printf("SIOCGHWADDR"););
800 bcopy((caddr_t)sc->sc_addr, (caddr_t)&ifr->ifr_data,
801 sizeof(sc->sc_addr));
805 DODEBUG(Start_End, printf("SIOCADDMULTI"););
807 DODEBUG(Start_End, printf("SIOCDELMULTI"););
808 /* XXX Support not done yet. */
813 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, cmd);
816 DODEBUG(Start_End, printf("unknown"););
822 DODEBUG(Start_End, printf("\nex_ioctl%d: finish\n", ifp->if_dunit););
829 ex_reset(struct ex_softc *sc)
833 DODEBUG(Start_End, printf("ex_reset%d: start\n", unit););
842 DODEBUG(Start_End, printf("ex_reset%d: finish\n", unit););
848 ex_watchdog(struct ifnet *ifp)
850 struct ex_softc * sc = ifp->if_softc;
852 DODEBUG(Start_End, printf("ex_watchdog%d: start\n", ifp->if_dunit););
854 ifp->if_flags &= ~IFF_OACTIVE;
856 DODEBUG(Status, printf("OIDLE watchdog\n"););
862 DODEBUG(Start_End, printf("ex_watchdog%d: finish\n", ifp->if_dunit););
868 ex_get_media (u_int32_t iobase)
872 outb(iobase + CMD_REG, Bank2_Sel);
873 tmp = inb(iobase + REG3);
874 outb(iobase + CMD_REG, Bank0_Sel);
877 return(IFM_ETHER|IFM_10_T);
879 return(IFM_ETHER|IFM_10_2);
881 return (IFM_ETHER|IFM_10_5);
893 ex_ifmedia_sts(ifp, ifmr)
895 struct ifmediareq * ifmr;
897 struct ex_softc * sc = ifp->if_softc;
899 ifmr->ifm_active = ex_get_media(sc->iobase);
905 eeprom_read(u_int32_t iobase, int location)
910 int read_cmd = location | EE_READ_CMD;
911 short ctrl_val = EECS;
913 ee_addr = iobase + EEPROM_REG;
914 outb(iobase + CMD_REG, Bank2_Sel);
916 for (i = 8; i >= 0; i--) {
917 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI : ctrl_val;
918 outb(ee_addr, outval);
919 outb(ee_addr, outval | EESK);
921 outb(ee_addr, outval);
924 outb(ee_addr, ctrl_val);
926 for (i = 16; i > 0; i--) {
927 outb(ee_addr, ctrl_val | EESK);
929 data = (data << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
930 outb(ee_addr, ctrl_val);
935 outb(ee_addr, ctrl_val | EESK);
937 outb(ee_addr, ctrl_val);
939 outb(iobase + CMD_REG, Bank0_Sel);