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 1.26 2008/08/22 08:33:59 swildner 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>
48 #include <sys/module.h>
51 #include <sys/serialize.h>
52 #include <sys/thread2.h>
55 #include <net/ifq_var.h>
57 #include <net/if_arp.h>
58 #include <net/if_media.h>
59 #include <net/ethernet.h>
62 #include <netinet/in.h>
63 #include <netinet/if_ether.h>
65 #include <machine/clock.h>
68 #include <bus/isa/isavar.h>
69 #include <bus/isa/pnpvar.h>
74 DECLARE_DUMMY_MODULE(if_ex);
81 static int debug_mask = 0;
82 static int exintr_count = 0;
83 # define DODEBUG(level, action) if (level & debug_mask) action
85 # define DODEBUG(level, action)
89 { -1, -1, 0, 1, -1, 2, -1, -1, -1, 0, 3, 4, -1, -1, -1, -1 };
91 { 9, 3, 5, 10, 11, 0, 0, 0 };
93 char plus_irq2eemap[] =
94 { -1, -1, -1, 0, 1, 2, -1, 3, -1, 4, 5, 6, 7, -1, -1, -1 };
95 u_char plus_ee2irqmap[] =
96 { 3, 4, 5, 7, 9, 10, 11, 12 };
98 /* Network Interface Functions */
99 static void ex_init (void *);
100 static void ex_start (struct ifnet *);
101 static int ex_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
102 static void ex_watchdog (struct ifnet *);
104 /* ifmedia Functions */
105 static int ex_ifmedia_upd (struct ifnet *);
106 static void ex_ifmedia_sts (struct ifnet *, struct ifmediareq *);
108 static int ex_get_media (u_int32_t iobase);
110 static void ex_reset (struct ex_softc *);
112 static void ex_tx_intr (struct ex_softc *);
113 static void ex_rx_intr (struct ex_softc *);
116 look_for_card (u_int32_t iobase)
121 * Check for the i82595 signature, and check that the round robin
122 * counter actually advances.
124 if (((count1 = inb(iobase + ID_REG)) & Id_Mask) != Id_Sig)
126 count2 = inb(iobase + ID_REG);
127 count2 = inb(iobase + ID_REG);
128 count2 = inb(iobase + ID_REG);
130 return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
134 ex_get_address (u_int32_t iobase, u_char *enaddr)
138 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Lo);
139 enaddr[5] = eaddr_tmp & 0xff;
140 enaddr[4] = eaddr_tmp >> 8;
141 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Mid);
142 enaddr[3] = eaddr_tmp & 0xff;
143 enaddr[2] = eaddr_tmp >> 8;
144 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Hi);
145 enaddr[1] = eaddr_tmp & 0xff;
146 enaddr[0] = eaddr_tmp >> 8;
152 ex_card_type (u_char *enaddr)
154 if ((enaddr[0] == 0x00) && (enaddr[1] == 0xA0) && (enaddr[2] == 0xC9))
155 return (CARD_TYPE_EX_10_PLUS);
157 return (CARD_TYPE_EX_10);
161 * Caller is responsible for eventually calling
162 * ex_release_resources() on failure.
165 ex_alloc_resources (device_t dev)
167 struct ex_softc * sc = device_get_softc(dev);
170 sc->ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->ioport_rid,
173 device_printf(dev, "No I/O space?!\n");
178 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
182 device_printf(dev, "No IRQ?!\n");
192 ex_release_resources (device_t dev)
194 struct ex_softc * sc = device_get_softc(dev);
197 bus_teardown_intr(dev, sc->irq, sc->ih);
202 bus_release_resource(dev, SYS_RES_IOPORT,
203 sc->ioport_rid, sc->ioport);
208 bus_release_resource(dev, SYS_RES_IRQ,
209 sc->irq_rid, sc->irq);
217 ex_attach(device_t dev)
219 struct ex_softc * sc = device_get_softc(dev);
220 struct ifnet * ifp = &sc->arpcom.ac_if;
221 struct ifmedia * ifm;
222 int unit = device_get_unit(dev);
225 /* work out which set of irq <-> internal tables to use */
226 if (ex_card_type(sc->arpcom.ac_enaddr) == CARD_TYPE_EX_10_PLUS) {
227 sc->irq2ee = plus_irq2eemap;
228 sc->ee2irq = plus_ee2irqmap;
230 sc->irq2ee = irq2eemap;
231 sc->ee2irq = ee2irqmap;
234 sc->mem_size = CARD_RAM_SIZE; /* XXX This should be read from the card itself. */
237 * Initialize the ifnet structure.
240 if_initname(ifp, "ex", unit);
241 ifp->if_mtu = ETHERMTU;
242 ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST /* XXX not done yet. | IFF_MULTICAST */;
243 ifp->if_start = ex_start;
244 ifp->if_ioctl = ex_ioctl;
245 ifp->if_watchdog = ex_watchdog;
246 ifp->if_init = ex_init;
247 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
248 ifq_set_ready(&ifp->if_snd);
250 ifmedia_init(&sc->ifmedia, 0, ex_ifmedia_upd, ex_ifmedia_sts);
252 temp = eeprom_read(sc->iobase, EE_W5);
253 if (temp & EE_W5_PORT_TPE)
254 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
255 if (temp & EE_W5_PORT_BNC)
256 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL);
257 if (temp & EE_W5_PORT_AUI)
258 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL);
260 ifmedia_set(&sc->ifmedia, ex_get_media(sc->iobase));
263 ifm->ifm_media = ifm->ifm_cur->ifm_media;
267 * Attach the interface.
269 ether_ifattach(ifp, sc->arpcom.ac_enaddr, NULL);
277 struct ex_softc * sc = (struct ex_softc *) xsc;
278 struct ifnet * ifp = &sc->arpcom.ac_if;
280 int iobase = sc->iobase;
281 unsigned short temp_reg;
283 DODEBUG(Start_End, kprintf("ex_init%d: start\n", ifp->if_dunit););
288 * Load the ethernet address into the card.
290 outb(iobase + CMD_REG, Bank2_Sel);
291 temp_reg = inb(iobase + EEPROM_REG);
292 if (temp_reg & Trnoff_Enable) {
293 outb(iobase + EEPROM_REG, temp_reg & ~Trnoff_Enable);
295 for (i = 0; i < ETHER_ADDR_LEN; i++) {
296 outb(iobase + I_ADDR_REG0 + i, sc->arpcom.ac_enaddr[i]);
299 * - Setup transmit chaining and discard bad received frames.
302 * - Set receiving mode.
305 outb(iobase + REG1, inb(iobase + REG1) | Tx_Chn_Int_Md | Tx_Chn_ErStp | Disc_Bad_Fr);
306 outb(iobase + REG2, inb(iobase + REG2) | No_SA_Ins | RX_CRC_InMem);
307 outb(iobase + REG3, inb(iobase + REG3) & 0x3f /* XXX constants. */ );
308 outb(iobase + CMD_REG, Bank1_Sel);
309 outb(iobase + INT_NO_REG, (inb(iobase + INT_NO_REG) & 0xf8) | sc->irq2ee[sc->irq_no]);
312 * Divide the available memory in the card into rcv and xmt buffers.
313 * By default, I use the first 3/4 of the memory for the rcv buffer,
314 * and the remaining 1/4 of the memory for the xmt buffer.
316 sc->rx_mem_size = sc->mem_size * 3 / 4;
317 sc->tx_mem_size = sc->mem_size - sc->rx_mem_size;
318 sc->rx_lower_limit = 0x0000;
319 sc->rx_upper_limit = sc->rx_mem_size - 2;
320 sc->tx_lower_limit = sc->rx_mem_size;
321 sc->tx_upper_limit = sc->mem_size - 2;
322 outb(iobase + RCV_LOWER_LIMIT_REG, sc->rx_lower_limit >> 8);
323 outb(iobase + RCV_UPPER_LIMIT_REG, sc->rx_upper_limit >> 8);
324 outb(iobase + XMT_LOWER_LIMIT_REG, sc->tx_lower_limit >> 8);
325 outb(iobase + XMT_UPPER_LIMIT_REG, sc->tx_upper_limit >> 8);
328 * Enable receive and transmit interrupts, and clear any pending int.
330 outb(iobase + REG1, inb(iobase + REG1) | TriST_INT);
331 outb(iobase + CMD_REG, Bank0_Sel);
332 outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int));
333 outb(iobase + STATUS_REG, All_Int);
336 * Initialize receive and transmit ring buffers.
338 outw(iobase + RCV_BAR, sc->rx_lower_limit);
339 sc->rx_head = sc->rx_lower_limit;
340 outw(iobase + RCV_STOP_REG, sc->rx_upper_limit | 0xfe);
341 outw(iobase + XMT_BAR, sc->tx_lower_limit);
342 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
344 ifp->if_flags |= IFF_RUNNING;
345 ifp->if_flags &= ~IFF_OACTIVE;
346 DODEBUG(Status, kprintf("OIDLE init\n"););
349 * Final reset of the board, and enable operation.
351 outb(iobase + CMD_REG, Sel_Reset_CMD);
353 outb(iobase + CMD_REG, Rcv_Enable_CMD);
355 if (!ifq_is_empty(&ifp->if_snd))
358 DODEBUG(Start_End, kprintf("ex_init%d: finish\n", ifp->if_dunit););
363 ex_start(struct ifnet *ifp)
365 struct ex_softc * sc = ifp->if_softc;
366 int iobase = sc->iobase;
367 int i, len, data_len, avail, dest, next;
368 unsigned char tmp16[2];
372 DODEBUG(Start_End, kprintf("ex_start%d: start\n", unit););
375 * Main loop: send outgoing packets to network card until there are no
376 * more packets left, or the card cannot accept any more yet.
378 while ((ifp->if_flags & IFF_OACTIVE) == 0) {
379 opkt = ifq_dequeue(&ifp->if_snd, NULL);
384 * Ensure there is enough free transmit buffer space for
385 * this packet, including its header. Note: the header
386 * cannot wrap around the end of the transmit buffer and
387 * must be kept together, so we allow space for twice the
388 * length of the header, just in case.
391 for (len = 0, m = opkt; m != NULL; m = m->m_next) {
397 DODEBUG(Sent_Pkts, kprintf("1. Sending packet with %d data bytes. ", data_len););
400 len += XMT_HEADER_LEN + 1;
402 len += XMT_HEADER_LEN;
405 if ((i = sc->tx_tail - sc->tx_head) >= 0) {
406 avail = sc->tx_mem_size - i;
411 DODEBUG(Sent_Pkts, kprintf("i=%d, avail=%d\n", i, avail););
413 if (avail >= len + XMT_HEADER_LEN) {
416 * Disable rx and tx interrupts, to avoid corruption
417 * of the host address register by interrupt service
419 * XXX Is this necessary with splimp() enabled?
421 outb(iobase + MASK_REG, All_Int);
425 * Compute the start and end addresses of this
426 * frame in the tx buffer.
431 if (next > sc->tx_upper_limit) {
432 if ((sc->tx_upper_limit + 2 - sc->tx_tail) <=
434 dest = sc->tx_lower_limit;
437 next = sc->tx_lower_limit +
438 next - sc->tx_upper_limit - 2;
443 * Build the packet frame in the card's ring buffer.
445 DODEBUG(Sent_Pkts, kprintf("2. dest=%d, next=%d. ", dest, next););
447 outw(iobase + HOST_ADDR_REG, dest);
448 outw(iobase + IO_PORT_REG, Transmit_CMD);
449 outw(iobase + IO_PORT_REG, 0);
450 outw(iobase + IO_PORT_REG, next);
451 outw(iobase + IO_PORT_REG, data_len);
454 * Output the packet data to the card. Ensure all
455 * transfers are 16-bit wide, even if individual
456 * mbufs have odd length.
459 for (m = opkt, i = 0; m != NULL; m = m->m_next) {
460 DODEBUG(Sent_Pkts, kprintf("[%d]", m->m_len););
462 tmp16[1] = *(mtod(m, caddr_t));
463 outsw(iobase + IO_PORT_REG, tmp16, 1);
465 outsw(iobase + IO_PORT_REG,
466 mtod(m, caddr_t) + i, (m->m_len - i) / 2);
468 if ((i = (m->m_len - i) & 1) != 0) {
469 tmp16[0] = *(mtod(m, caddr_t) +
474 outsw(iobase + IO_PORT_REG, tmp16, 1);
478 * If there were other frames chained, update the
479 * chain in the last one.
481 if (sc->tx_head != sc->tx_tail) {
482 if (sc->tx_tail != dest) {
483 outw(iobase + HOST_ADDR_REG,
484 sc->tx_last + XMT_Chain_Point);
485 outw(iobase + IO_PORT_REG, dest);
487 outw(iobase + HOST_ADDR_REG,
488 sc->tx_last + XMT_Byte_Count);
489 i = inw(iobase + IO_PORT_REG);
490 outw(iobase + HOST_ADDR_REG,
491 sc->tx_last + XMT_Byte_Count);
492 outw(iobase + IO_PORT_REG, i | Ch_bit);
496 * Resume normal operation of the card:
497 * - Make a dummy read to flush the DRAM write
499 * - Enable receive and transmit interrupts.
500 * - Send Transmit or Resume_XMT command, as
503 inw(iobase + IO_PORT_REG);
505 outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int));
507 if (sc->tx_head == sc->tx_tail) {
508 outw(iobase + XMT_BAR, dest);
509 outb(iobase + CMD_REG, Transmit_CMD);
511 DODEBUG(Sent_Pkts, kprintf("Transmit\n"););
513 outb(iobase + CMD_REG, Resume_XMT_List_CMD);
514 DODEBUG(Sent_Pkts, kprintf("Resume\n"););
526 ifp->if_flags |= IFF_OACTIVE;
527 ifq_prepend(&ifp->if_snd, opkt);
528 DODEBUG(Status, kprintf("OACTIVE start\n"););
531 DODEBUG(Start_End, kprintf("ex_start%d: finish\n", unit););
535 ex_stop(struct ex_softc *sc)
537 int iobase = sc->iobase;
539 DODEBUG(Start_End, kprintf("ex_stop%d: start\n", unit););
542 * Disable card operation:
543 * - Disable the interrupt line.
544 * - Flush transmission and disable reception.
545 * - Mask and clear all interrupts.
548 outb(iobase + CMD_REG, Bank1_Sel);
549 outb(iobase + REG1, inb(iobase + REG1) & ~TriST_INT);
550 outb(iobase + CMD_REG, Bank0_Sel);
551 outb(iobase + CMD_REG, Rcv_Stop);
552 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
553 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. */
554 outb(iobase + MASK_REG, All_Int);
555 outb(iobase + STATUS_REG, All_Int);
556 outb(iobase + CMD_REG, Reset_CMD);
559 DODEBUG(Start_End, kprintf("ex_stop%d: finish\n", unit););
567 struct ex_softc * sc = (struct ex_softc *)arg;
568 struct ifnet * ifp = &sc->arpcom.ac_if;
569 int iobase = sc->iobase;
570 int int_status, send_pkts;
572 DODEBUG(Start_End, kprintf("ex_intr%d: start\n", unit););
575 if (++exintr_count != 1)
576 kprintf("WARNING: nested interrupt (%d). Mail the author.\n", exintr_count);
580 while ((int_status = inb(iobase + STATUS_REG)) & (Tx_Int | Rx_Int)) {
581 if (int_status & Rx_Int) {
582 outb(iobase + STATUS_REG, Rx_Int);
585 } else if (int_status & Tx_Int) {
586 outb(iobase + STATUS_REG, Tx_Int);
594 * If any packet has been transmitted, and there are queued packets to
595 * be sent, attempt to send more packets to the network card.
598 if (send_pkts && !ifq_is_empty(&ifp->if_snd))
605 DODEBUG(Start_End, kprintf("ex_intr%d: finish\n", unit););
611 ex_tx_intr(struct ex_softc *sc)
613 struct ifnet * ifp = &sc->arpcom.ac_if;
614 int iobase = sc->iobase;
617 DODEBUG(Start_End, kprintf("ex_tx_intr%d: start\n", unit););
620 * - Cancel the watchdog.
621 * For all packets transmitted since last transmit interrupt:
622 * - Advance chain pointer to next queued packet.
623 * - Update statistics.
628 while (sc->tx_head != sc->tx_tail) {
629 outw(iobase + HOST_ADDR_REG, sc->tx_head);
631 if (!(inw(iobase + IO_PORT_REG) & Done_bit))
634 tx_status = inw(iobase + IO_PORT_REG);
635 sc->tx_head = inw(iobase + IO_PORT_REG);
637 if (tx_status & TX_OK_bit) {
643 ifp->if_collisions += tx_status & No_Collisions_bits;
647 * The card should be ready to accept more packets now.
650 ifp->if_flags &= ~IFF_OACTIVE;
652 DODEBUG(Status, kprintf("OIDLE tx_intr\n"););
653 DODEBUG(Start_End, kprintf("ex_tx_intr%d: finish\n", unit););
659 ex_rx_intr(struct ex_softc *sc)
661 struct ifnet * ifp = &sc->arpcom.ac_if;
662 int iobase = sc->iobase;
668 DODEBUG(Start_End, kprintf("ex_rx_intr%d: start\n", unit););
671 * For all packets received since last receive interrupt:
672 * - If packet ok, read it into a new mbuf and queue it to interface,
673 * updating statistics.
674 * - If packet bad, just discard it, and update statistics.
675 * Finally, advance receive stop limit in card's memory to new location.
678 outw(iobase + HOST_ADDR_REG, sc->rx_head);
680 while (inw(iobase + IO_PORT_REG) == RCV_Done) {
682 rx_status = inw(iobase + IO_PORT_REG);
683 sc->rx_head = inw(iobase + IO_PORT_REG);
684 pkt_len = inw(iobase + IO_PORT_REG);
686 if (rx_status & RCV_OK_bit) {
687 MGETHDR(m, MB_DONTWAIT, MT_DATA);
692 ipkt->m_pkthdr.rcvif = ifp;
693 ipkt->m_pkthdr.len = pkt_len;
696 while (pkt_len > 0) {
697 if (pkt_len > MINCLSIZE) {
698 MCLGET(m, MB_DONTWAIT);
699 if (m->m_flags & M_EXT) {
707 m->m_len = min(m->m_len, pkt_len);
710 * NOTE: I'm assuming that all mbufs allocated are of even length,
711 * except for the last one in an odd-length packet.
714 insw(iobase + IO_PORT_REG,
715 mtod(m, caddr_t), m->m_len / 2);
718 *(mtod(m, caddr_t) + m->m_len - 1) = inb(iobase + IO_PORT_REG);
723 MGET(m->m_next, MB_DONTWAIT, MT_DATA);
724 if (m->m_next == NULL) {
733 ifp->if_input(ifp, ipkt);
739 outw(iobase + HOST_ADDR_REG, sc->rx_head);
743 if (sc->rx_head < sc->rx_lower_limit + 2)
744 outw(iobase + RCV_STOP_REG, sc->rx_upper_limit);
746 outw(iobase + RCV_STOP_REG, sc->rx_head - 2);
748 DODEBUG(Start_End, kprintf("ex_rx_intr%d: finish\n", unit););
755 ex_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
757 struct ex_softc * sc = ifp->if_softc;
758 struct ifreq * ifr = (struct ifreq *)data;
761 DODEBUG(Start_End, kprintf("ex_ioctl%d: start ", ifp->if_dunit););
765 DODEBUG(Start_End, kprintf("SIOCSIFFLAGS"););
766 if ((ifp->if_flags & IFF_UP) == 0 &&
767 (ifp->if_flags & IFF_RUNNING)) {
769 ifp->if_flags &= ~IFF_RUNNING;
777 DODEBUG(Start_End, kprintf("SIOCGHWADDR"););
778 bcopy((caddr_t)sc->sc_addr, (caddr_t)&ifr->ifr_data,
779 sizeof(sc->sc_addr));
783 DODEBUG(Start_End, kprintf("SIOCADDMULTI"););
785 DODEBUG(Start_End, kprintf("SIOCDELMULTI"););
786 /* XXX Support not done yet. */
791 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, cmd);
794 DODEBUG(Start_End, kprintf("unknown"););
795 error = ether_ioctl(ifp, cmd, data);
799 DODEBUG(Start_End, kprintf("\nex_ioctl%d: finish\n", ifp->if_dunit););
806 ex_reset(struct ex_softc *sc)
808 DODEBUG(Start_End, kprintf("ex_reset%d: start\n", unit););
813 DODEBUG(Start_End, kprintf("ex_reset%d: finish\n", unit););
817 ex_watchdog(struct ifnet *ifp)
819 struct ex_softc * sc = ifp->if_softc;
821 DODEBUG(Start_End, kprintf("ex_watchdog%d: start\n", ifp->if_dunit););
823 ifp->if_flags &= ~IFF_OACTIVE;
825 DODEBUG(Status, kprintf("OIDLE watchdog\n"););
831 DODEBUG(Start_End, kprintf("ex_watchdog%d: finish\n", ifp->if_dunit););
837 ex_get_media (u_int32_t iobase)
841 outb(iobase + CMD_REG, Bank2_Sel);
842 tmp = inb(iobase + REG3);
843 outb(iobase + CMD_REG, Bank0_Sel);
846 return(IFM_ETHER|IFM_10_T);
848 return(IFM_ETHER|IFM_10_2);
850 return (IFM_ETHER|IFM_10_5);
854 ex_ifmedia_upd (struct ifnet *ifp)
861 ex_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
863 struct ex_softc * sc = ifp->if_softc;
865 ifmr->ifm_active = ex_get_media(sc->iobase);
871 eeprom_read(u_int32_t iobase, int location)
876 int read_cmd = location | EE_READ_CMD;
877 short ctrl_val = EECS;
879 ee_addr = iobase + EEPROM_REG;
880 outb(iobase + CMD_REG, Bank2_Sel);
882 for (i = 8; i >= 0; i--) {
883 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI : ctrl_val;
884 outb(ee_addr, outval);
885 outb(ee_addr, outval | EESK);
887 outb(ee_addr, outval);
890 outb(ee_addr, ctrl_val);
892 for (i = 16; i > 0; i--) {
893 outb(ee_addr, ctrl_val | EESK);
895 data = (data << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
896 outb(ee_addr, ctrl_val);
901 outb(ee_addr, ctrl_val | EESK);
903 outb(ee_addr, ctrl_val);
905 outb(iobase + CMD_REG, Bank0_Sel);