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 1.22 2006/08/06 12:49:05 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/thread2.h>
50 #include <sys/module.h>
52 #include <sys/serialize.h>
54 #include <machine/bus.h>
55 #include <machine/resource.h>
59 #include <net/ifq_var.h>
61 #include <net/if_arp.h>
62 #include <net/if_media.h>
63 #include <net/ethernet.h>
66 #include <netinet/in.h>
67 #include <netinet/if_ether.h>
68 #include <machine/clock.h>
71 #include <bus/isa/isavar.h>
72 #include <bus/isa/pnpvar.h>
77 DECLARE_DUMMY_MODULE(if_ex);
84 static int debug_mask = 0;
85 static int exintr_count = 0;
86 # define DODEBUG(level, action) if (level & debug_mask) action
88 # define DODEBUG(level, action)
92 { -1, -1, 0, 1, -1, 2, -1, -1, -1, 0, 3, 4, -1, -1, -1, -1 };
94 { 9, 3, 5, 10, 11, 0, 0, 0 };
96 char plus_irq2eemap[] =
97 { -1, -1, -1, 0, 1, 2, -1, 3, -1, 4, 5, 6, 7, -1, -1, -1 };
98 u_char plus_ee2irqmap[] =
99 { 3, 4, 5, 7, 9, 10, 11, 12 };
101 /* Network Interface Functions */
102 static void ex_init (void *);
103 static void ex_start (struct ifnet *);
104 static int ex_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
105 static void ex_watchdog (struct ifnet *);
107 /* ifmedia Functions */
108 static int ex_ifmedia_upd (struct ifnet *);
109 static void ex_ifmedia_sts (struct ifnet *, struct ifmediareq *);
111 static int ex_get_media (u_int32_t iobase);
113 static void ex_reset (struct ex_softc *);
115 static void ex_tx_intr (struct ex_softc *);
116 static void ex_rx_intr (struct ex_softc *);
119 look_for_card (u_int32_t iobase)
124 * Check for the i82595 signature, and check that the round robin
125 * counter actually advances.
127 if (((count1 = inb(iobase + ID_REG)) & Id_Mask) != Id_Sig)
129 count2 = inb(iobase + ID_REG);
130 count2 = inb(iobase + ID_REG);
131 count2 = inb(iobase + ID_REG);
133 return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
137 ex_get_address (u_int32_t iobase, u_char *enaddr)
141 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Lo);
142 enaddr[5] = eaddr_tmp & 0xff;
143 enaddr[4] = eaddr_tmp >> 8;
144 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Mid);
145 enaddr[3] = eaddr_tmp & 0xff;
146 enaddr[2] = eaddr_tmp >> 8;
147 eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Hi);
148 enaddr[1] = eaddr_tmp & 0xff;
149 enaddr[0] = eaddr_tmp >> 8;
155 ex_card_type (u_char *enaddr)
157 if ((enaddr[0] == 0x00) && (enaddr[1] == 0xA0) && (enaddr[2] == 0xC9))
158 return (CARD_TYPE_EX_10_PLUS);
160 return (CARD_TYPE_EX_10);
164 * Caller is responsible for eventually calling
165 * ex_release_resources() on failure.
168 ex_alloc_resources (device_t dev)
170 struct ex_softc * sc = device_get_softc(dev);
173 sc->ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->ioport_rid,
176 device_printf(dev, "No I/O space?!\n");
181 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
185 device_printf(dev, "No IRQ?!\n");
195 ex_release_resources (device_t dev)
197 struct ex_softc * sc = device_get_softc(dev);
200 bus_teardown_intr(dev, sc->irq, sc->ih);
205 bus_release_resource(dev, SYS_RES_IOPORT,
206 sc->ioport_rid, sc->ioport);
211 bus_release_resource(dev, SYS_RES_IRQ,
212 sc->irq_rid, sc->irq);
220 ex_attach(device_t dev)
222 struct ex_softc * sc = device_get_softc(dev);
223 struct ifnet * ifp = &sc->arpcom.ac_if;
224 struct ifmedia * ifm;
225 int unit = device_get_unit(dev);
228 /* work out which set of irq <-> internal tables to use */
229 if (ex_card_type(sc->arpcom.ac_enaddr) == CARD_TYPE_EX_10_PLUS) {
230 sc->irq2ee = plus_irq2eemap;
231 sc->ee2irq = plus_ee2irqmap;
233 sc->irq2ee = irq2eemap;
234 sc->ee2irq = ee2irqmap;
237 sc->mem_size = CARD_RAM_SIZE; /* XXX This should be read from the card itself. */
240 * Initialize the ifnet structure.
243 if_initname(ifp, "ex", unit);
244 ifp->if_mtu = ETHERMTU;
245 ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST /* XXX not done yet. | IFF_MULTICAST */;
246 ifp->if_start = ex_start;
247 ifp->if_ioctl = ex_ioctl;
248 ifp->if_watchdog = ex_watchdog;
249 ifp->if_init = ex_init;
250 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
251 ifq_set_ready(&ifp->if_snd);
253 ifmedia_init(&sc->ifmedia, 0, ex_ifmedia_upd, ex_ifmedia_sts);
255 temp = eeprom_read(sc->iobase, EE_W5);
256 if (temp & EE_W5_PORT_TPE)
257 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
258 if (temp & EE_W5_PORT_BNC)
259 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL);
260 if (temp & EE_W5_PORT_AUI)
261 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL);
263 ifmedia_set(&sc->ifmedia, ex_get_media(sc->iobase));
266 ifm->ifm_media = ifm->ifm_cur->ifm_media;
270 * Attach the interface.
272 ether_ifattach(ifp, sc->arpcom.ac_enaddr, NULL);
280 struct ex_softc * sc = (struct ex_softc *) xsc;
281 struct ifnet * ifp = &sc->arpcom.ac_if;
283 int iobase = sc->iobase;
284 unsigned short temp_reg;
286 DODEBUG(Start_End, printf("ex_init%d: start\n", ifp->if_dunit););
291 * Load the ethernet address into the card.
293 outb(iobase + CMD_REG, Bank2_Sel);
294 temp_reg = inb(iobase + EEPROM_REG);
295 if (temp_reg & Trnoff_Enable) {
296 outb(iobase + EEPROM_REG, temp_reg & ~Trnoff_Enable);
298 for (i = 0; i < ETHER_ADDR_LEN; i++) {
299 outb(iobase + I_ADDR_REG0 + i, sc->arpcom.ac_enaddr[i]);
302 * - Setup transmit chaining and discard bad received frames.
305 * - Set receiving mode.
308 outb(iobase + REG1, inb(iobase + REG1) | Tx_Chn_Int_Md | Tx_Chn_ErStp | Disc_Bad_Fr);
309 outb(iobase + REG2, inb(iobase + REG2) | No_SA_Ins | RX_CRC_InMem);
310 outb(iobase + REG3, inb(iobase + REG3) & 0x3f /* XXX constants. */ );
311 outb(iobase + CMD_REG, Bank1_Sel);
312 outb(iobase + INT_NO_REG, (inb(iobase + INT_NO_REG) & 0xf8) | sc->irq2ee[sc->irq_no]);
315 * Divide the available memory in the card into rcv and xmt buffers.
316 * By default, I use the first 3/4 of the memory for the rcv buffer,
317 * and the remaining 1/4 of the memory for the xmt buffer.
319 sc->rx_mem_size = sc->mem_size * 3 / 4;
320 sc->tx_mem_size = sc->mem_size - sc->rx_mem_size;
321 sc->rx_lower_limit = 0x0000;
322 sc->rx_upper_limit = sc->rx_mem_size - 2;
323 sc->tx_lower_limit = sc->rx_mem_size;
324 sc->tx_upper_limit = sc->mem_size - 2;
325 outb(iobase + RCV_LOWER_LIMIT_REG, sc->rx_lower_limit >> 8);
326 outb(iobase + RCV_UPPER_LIMIT_REG, sc->rx_upper_limit >> 8);
327 outb(iobase + XMT_LOWER_LIMIT_REG, sc->tx_lower_limit >> 8);
328 outb(iobase + XMT_UPPER_LIMIT_REG, sc->tx_upper_limit >> 8);
331 * Enable receive and transmit interrupts, and clear any pending int.
333 outb(iobase + REG1, inb(iobase + REG1) | TriST_INT);
334 outb(iobase + CMD_REG, Bank0_Sel);
335 outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int));
336 outb(iobase + STATUS_REG, All_Int);
339 * Initialize receive and transmit ring buffers.
341 outw(iobase + RCV_BAR, sc->rx_lower_limit);
342 sc->rx_head = sc->rx_lower_limit;
343 outw(iobase + RCV_STOP_REG, sc->rx_upper_limit | 0xfe);
344 outw(iobase + XMT_BAR, sc->tx_lower_limit);
345 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
347 ifp->if_flags |= IFF_RUNNING;
348 ifp->if_flags &= ~IFF_OACTIVE;
349 DODEBUG(Status, printf("OIDLE init\n"););
352 * Final reset of the board, and enable operation.
354 outb(iobase + CMD_REG, Sel_Reset_CMD);
356 outb(iobase + CMD_REG, Rcv_Enable_CMD);
360 DODEBUG(Start_End, printf("ex_init%d: finish\n", ifp->if_dunit););
365 ex_start(struct ifnet *ifp)
367 struct ex_softc * sc = ifp->if_softc;
368 int iobase = sc->iobase;
369 int i, len, data_len, avail, dest, next;
370 unsigned char tmp16[2];
374 DODEBUG(Start_End, printf("ex_start%d: start\n", unit););
377 * Main loop: send outgoing packets to network card until there are no
378 * more packets left, or the card cannot accept any more yet.
380 while ((ifp->if_flags & IFF_OACTIVE) == 0) {
381 opkt = ifq_poll(&ifp->if_snd);
386 * Ensure there is enough free transmit buffer space for
387 * this packet, including its header. Note: the header
388 * cannot wrap around the end of the transmit buffer and
389 * must be kept together, so we allow space for twice the
390 * length of the header, just in case.
393 for (len = 0, m = opkt; m != NULL; m = m->m_next) {
399 DODEBUG(Sent_Pkts, printf("1. Sending packet with %d data bytes. ", data_len););
402 len += XMT_HEADER_LEN + 1;
404 len += XMT_HEADER_LEN;
407 if ((i = sc->tx_tail - sc->tx_head) >= 0) {
408 avail = sc->tx_mem_size - i;
413 DODEBUG(Sent_Pkts, printf("i=%d, avail=%d\n", i, avail););
415 if (avail >= len + XMT_HEADER_LEN) {
416 ifq_dequeue(&ifp->if_snd, opkt);
420 * Disable rx and tx interrupts, to avoid corruption
421 * of the host address register by interrupt service
423 * XXX Is this necessary with splimp() enabled?
425 outb(iobase + MASK_REG, All_Int);
429 * Compute the start and end addresses of this
430 * frame in the tx buffer.
435 if (next > sc->tx_upper_limit) {
436 if ((sc->tx_upper_limit + 2 - sc->tx_tail) <=
438 dest = sc->tx_lower_limit;
441 next = sc->tx_lower_limit +
442 next - sc->tx_upper_limit - 2;
447 * Build the packet frame in the card's ring buffer.
449 DODEBUG(Sent_Pkts, printf("2. dest=%d, next=%d. ", dest, next););
451 outw(iobase + HOST_ADDR_REG, dest);
452 outw(iobase + IO_PORT_REG, Transmit_CMD);
453 outw(iobase + IO_PORT_REG, 0);
454 outw(iobase + IO_PORT_REG, next);
455 outw(iobase + IO_PORT_REG, data_len);
458 * Output the packet data to the card. Ensure all
459 * transfers are 16-bit wide, even if individual
460 * mbufs have odd length.
463 for (m = opkt, i = 0; m != NULL; m = m->m_next) {
464 DODEBUG(Sent_Pkts, printf("[%d]", m->m_len););
466 tmp16[1] = *(mtod(m, caddr_t));
467 outsw(iobase + IO_PORT_REG, tmp16, 1);
469 outsw(iobase + IO_PORT_REG,
470 mtod(m, caddr_t) + i, (m->m_len - i) / 2);
472 if ((i = (m->m_len - i) & 1) != 0) {
473 tmp16[0] = *(mtod(m, caddr_t) +
478 outsw(iobase + IO_PORT_REG, tmp16, 1);
482 * If there were other frames chained, update the
483 * chain in the last one.
485 if (sc->tx_head != sc->tx_tail) {
486 if (sc->tx_tail != dest) {
487 outw(iobase + HOST_ADDR_REG,
488 sc->tx_last + XMT_Chain_Point);
489 outw(iobase + IO_PORT_REG, dest);
491 outw(iobase + HOST_ADDR_REG,
492 sc->tx_last + XMT_Byte_Count);
493 i = inw(iobase + IO_PORT_REG);
494 outw(iobase + HOST_ADDR_REG,
495 sc->tx_last + XMT_Byte_Count);
496 outw(iobase + IO_PORT_REG, i | Ch_bit);
500 * Resume normal operation of the card:
501 * - Make a dummy read to flush the DRAM write
503 * - Enable receive and transmit interrupts.
504 * - Send Transmit or Resume_XMT command, as
507 inw(iobase + IO_PORT_REG);
509 outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int));
511 if (sc->tx_head == sc->tx_tail) {
512 outw(iobase + XMT_BAR, dest);
513 outb(iobase + CMD_REG, Transmit_CMD);
515 DODEBUG(Sent_Pkts, printf("Transmit\n"););
517 outb(iobase + CMD_REG, Resume_XMT_List_CMD);
518 DODEBUG(Sent_Pkts, printf("Resume\n"););
530 ifp->if_flags |= IFF_OACTIVE;
531 DODEBUG(Status, printf("OACTIVE start\n"););
534 DODEBUG(Start_End, printf("ex_start%d: finish\n", unit););
538 ex_stop(struct ex_softc *sc)
540 int iobase = sc->iobase;
542 DODEBUG(Start_End, printf("ex_stop%d: start\n", unit););
545 * Disable card operation:
546 * - Disable the interrupt line.
547 * - Flush transmission and disable reception.
548 * - Mask and clear all interrupts.
551 outb(iobase + CMD_REG, Bank1_Sel);
552 outb(iobase + REG1, inb(iobase + REG1) & ~TriST_INT);
553 outb(iobase + CMD_REG, Bank0_Sel);
554 outb(iobase + CMD_REG, Rcv_Stop);
555 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
556 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. */
557 outb(iobase + MASK_REG, All_Int);
558 outb(iobase + STATUS_REG, All_Int);
559 outb(iobase + CMD_REG, Reset_CMD);
562 DODEBUG(Start_End, printf("ex_stop%d: finish\n", unit););
570 struct ex_softc * sc = (struct ex_softc *)arg;
571 struct ifnet * ifp = &sc->arpcom.ac_if;
572 int iobase = sc->iobase;
573 int int_status, send_pkts;
575 DODEBUG(Start_End, printf("ex_intr%d: start\n", unit););
578 if (++exintr_count != 1)
579 printf("WARNING: nested interrupt (%d). Mail the author.\n", exintr_count);
583 while ((int_status = inb(iobase + STATUS_REG)) & (Tx_Int | Rx_Int)) {
584 if (int_status & Rx_Int) {
585 outb(iobase + STATUS_REG, Rx_Int);
588 } else if (int_status & Tx_Int) {
589 outb(iobase + STATUS_REG, Tx_Int);
597 * If any packet has been transmitted, and there are queued packets to
598 * be sent, attempt to send more packets to the network card.
601 if (send_pkts && !ifq_is_empty(&ifp->if_snd))
608 DODEBUG(Start_End, printf("ex_intr%d: finish\n", unit););
614 ex_tx_intr(struct ex_softc *sc)
616 struct ifnet * ifp = &sc->arpcom.ac_if;
617 int iobase = sc->iobase;
620 DODEBUG(Start_End, printf("ex_tx_intr%d: start\n", unit););
623 * - Cancel the watchdog.
624 * For all packets transmitted since last transmit interrupt:
625 * - Advance chain pointer to next queued packet.
626 * - Update statistics.
631 while (sc->tx_head != sc->tx_tail) {
632 outw(iobase + HOST_ADDR_REG, sc->tx_head);
634 if (! inw(iobase + IO_PORT_REG) & Done_bit)
637 tx_status = inw(iobase + IO_PORT_REG);
638 sc->tx_head = inw(iobase + IO_PORT_REG);
640 if (tx_status & TX_OK_bit) {
646 ifp->if_collisions += tx_status & No_Collisions_bits;
650 * The card should be ready to accept more packets now.
653 ifp->if_flags &= ~IFF_OACTIVE;
655 DODEBUG(Status, printf("OIDLE tx_intr\n"););
656 DODEBUG(Start_End, printf("ex_tx_intr%d: finish\n", unit););
662 ex_rx_intr(struct ex_softc *sc)
664 struct ifnet * ifp = &sc->arpcom.ac_if;
665 int iobase = sc->iobase;
672 DODEBUG(Start_End, printf("ex_rx_intr%d: start\n", unit););
675 * For all packets received since last receive interrupt:
676 * - If packet ok, read it into a new mbuf and queue it to interface,
677 * updating statistics.
678 * - If packet bad, just discard it, and update statistics.
679 * Finally, advance receive stop limit in card's memory to new location.
682 outw(iobase + HOST_ADDR_REG, sc->rx_head);
684 while (inw(iobase + IO_PORT_REG) == RCV_Done) {
686 rx_status = inw(iobase + IO_PORT_REG);
687 sc->rx_head = inw(iobase + IO_PORT_REG);
688 QQQ = pkt_len = inw(iobase + IO_PORT_REG);
690 if (rx_status & RCV_OK_bit) {
691 MGETHDR(m, MB_DONTWAIT, MT_DATA);
696 ipkt->m_pkthdr.rcvif = ifp;
697 ipkt->m_pkthdr.len = pkt_len;
700 while (pkt_len > 0) {
701 if (pkt_len > MINCLSIZE) {
702 MCLGET(m, MB_DONTWAIT);
703 if (m->m_flags & M_EXT) {
711 m->m_len = min(m->m_len, pkt_len);
714 * NOTE: I'm assuming that all mbufs allocated are of even length,
715 * except for the last one in an odd-length packet.
718 insw(iobase + IO_PORT_REG,
719 mtod(m, caddr_t), m->m_len / 2);
722 *(mtod(m, caddr_t) + m->m_len - 1) = inb(iobase + IO_PORT_REG);
727 MGET(m->m_next, MB_DONTWAIT, MT_DATA);
728 if (m->m_next == NULL) {
737 ifp->if_input(ifp, ipkt);
743 outw(iobase + HOST_ADDR_REG, sc->rx_head);
747 if (sc->rx_head < sc->rx_lower_limit + 2)
748 outw(iobase + RCV_STOP_REG, sc->rx_upper_limit);
750 outw(iobase + RCV_STOP_REG, sc->rx_head - 2);
752 DODEBUG(Start_End, printf("ex_rx_intr%d: finish\n", unit););
759 ex_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
761 struct ex_softc * sc = ifp->if_softc;
762 struct ifreq * ifr = (struct ifreq *)data;
765 DODEBUG(Start_End, printf("ex_ioctl%d: start ", ifp->if_dunit););
769 DODEBUG(Start_End, printf("SIOCSIFFLAGS"););
770 if ((ifp->if_flags & IFF_UP) == 0 &&
771 (ifp->if_flags & IFF_RUNNING)) {
773 ifp->if_flags &= ~IFF_RUNNING;
781 DODEBUG(Start_End, printf("SIOCGHWADDR"););
782 bcopy((caddr_t)sc->sc_addr, (caddr_t)&ifr->ifr_data,
783 sizeof(sc->sc_addr));
787 DODEBUG(Start_End, printf("SIOCADDMULTI"););
789 DODEBUG(Start_End, printf("SIOCDELMULTI"););
790 /* XXX Support not done yet. */
795 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, cmd);
798 DODEBUG(Start_End, printf("unknown"););
799 error = ether_ioctl(ifp, cmd, data);
803 DODEBUG(Start_End, printf("\nex_ioctl%d: finish\n", ifp->if_dunit););
810 ex_reset(struct ex_softc *sc)
812 DODEBUG(Start_End, printf("ex_reset%d: start\n", unit););
817 DODEBUG(Start_End, printf("ex_reset%d: finish\n", unit););
821 ex_watchdog(struct ifnet *ifp)
823 struct ex_softc * sc = ifp->if_softc;
825 DODEBUG(Start_End, printf("ex_watchdog%d: start\n", ifp->if_dunit););
827 ifp->if_flags &= ~IFF_OACTIVE;
829 DODEBUG(Status, printf("OIDLE watchdog\n"););
835 DODEBUG(Start_End, printf("ex_watchdog%d: finish\n", ifp->if_dunit););
841 ex_get_media (u_int32_t iobase)
845 outb(iobase + CMD_REG, Bank2_Sel);
846 tmp = inb(iobase + REG3);
847 outb(iobase + CMD_REG, Bank0_Sel);
850 return(IFM_ETHER|IFM_10_T);
852 return(IFM_ETHER|IFM_10_2);
854 return (IFM_ETHER|IFM_10_5);
858 ex_ifmedia_upd (struct ifnet *ifp)
865 ex_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
867 struct ex_softc * sc = ifp->if_softc;
869 ifmr->ifm_active = ex_get_media(sc->iobase);
875 eeprom_read(u_int32_t iobase, int location)
880 int read_cmd = location | EE_READ_CMD;
881 short ctrl_val = EECS;
883 ee_addr = iobase + EEPROM_REG;
884 outb(iobase + CMD_REG, Bank2_Sel);
886 for (i = 8; i >= 0; i--) {
887 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI : ctrl_val;
888 outb(ee_addr, outval);
889 outb(ee_addr, outval | EESK);
891 outb(ee_addr, outval);
894 outb(ee_addr, ctrl_val);
896 for (i = 16; i > 0; i--) {
897 outb(ee_addr, ctrl_val | EESK);
899 data = (data << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
900 outb(ee_addr, ctrl_val);
905 outb(ee_addr, ctrl_val | EESK);
907 outb(ee_addr, ctrl_val);
909 outb(iobase + CMD_REG, Bank0_Sel);