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if_mc.c revision 1.26.8.1
      1  1.26.8.1   thorpej /*	$NetBSD: if_mc.c,v 1.26.8.1 2021/04/03 22:28:29 thorpej Exp $	*/
      2       1.1    tsubai 
      3       1.1    tsubai /*-
      4       1.1    tsubai  * Copyright (c) 1997 David Huang <khym (at) bga.com>
      5       1.1    tsubai  * All rights reserved.
      6       1.1    tsubai  *
      7       1.1    tsubai  * Portions of this code are based on code by Denton Gentry <denny1 (at) home.com>
      8       1.1    tsubai  * and Yanagisawa Takeshi <yanagisw (at) aa.ap.titech.ac.jp>.
      9       1.1    tsubai  *
     10       1.1    tsubai  * Redistribution and use in source and binary forms, with or without
     11       1.1    tsubai  * modification, are permitted provided that the following conditions
     12       1.1    tsubai  * are met:
     13       1.1    tsubai  * 1. Redistributions of source code must retain the above copyright
     14       1.1    tsubai  *    notice, this list of conditions and the following disclaimer.
     15       1.1    tsubai  * 2. The name of the author may not be used to endorse or promote products
     16       1.1    tsubai  *    derived from this software without specific prior written permission
     17       1.1    tsubai  *
     18       1.1    tsubai  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19       1.1    tsubai  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20       1.1    tsubai  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21       1.1    tsubai  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22       1.1    tsubai  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23       1.1    tsubai  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24       1.1    tsubai  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25       1.1    tsubai  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26       1.1    tsubai  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27       1.1    tsubai  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28       1.1    tsubai  *
     29       1.1    tsubai  */
     30       1.1    tsubai 
     31       1.1    tsubai /*
     32       1.1    tsubai  * Bus attachment and DMA routines for the mc driver (Centris/Quadra
     33       1.1    tsubai  * 660av and Quadra 840av onboard ethernet, based on the AMD Am79C940
     34       1.1    tsubai  * MACE ethernet chip). Also uses the PSC (Peripheral Subsystem
     35       1.1    tsubai  * Controller) for DMA to and from the MACE.
     36       1.1    tsubai  */
     37       1.9     lukem 
     38       1.9     lukem #include <sys/cdefs.h>
     39  1.26.8.1   thorpej __KERNEL_RCSID(0, "$NetBSD: if_mc.c,v 1.26.8.1 2021/04/03 22:28:29 thorpej Exp $");
     40       1.1    tsubai 
     41       1.1    tsubai #include <sys/param.h>
     42       1.1    tsubai #include <sys/device.h>
     43       1.1    tsubai #include <sys/malloc.h>
     44       1.1    tsubai #include <sys/socket.h>
     45       1.1    tsubai #include <sys/systm.h>
     46       1.1    tsubai 
     47       1.1    tsubai #include <net/if.h>
     48       1.1    tsubai #include <net/if_ether.h>
     49       1.1    tsubai #include <net/if_media.h>
     50       1.1    tsubai 
     51       1.1    tsubai #include <dev/ofw/openfirm.h>
     52       1.1    tsubai 
     53      1.21    dyoung #include <sys/bus.h>
     54       1.1    tsubai #include <machine/autoconf.h>
     55      1.13   garbled #include <machine/pio.h>
     56       1.1    tsubai 
     57       1.1    tsubai #include <macppc/dev/am79c950reg.h>
     58       1.1    tsubai #include <macppc/dev/if_mcvar.h>
     59       1.1    tsubai 
     60       1.1    tsubai #define MC_BUFSIZE 0x800
     61       1.1    tsubai 
     62      1.19      matt hide int	mc_match(device_t, cfdata_t, void *);
     63      1.19      matt hide void	mc_attach(device_t, device_t, void *);
     64      1.24   msaitoh hide void	mc_init(struct mc_softc *);
     65      1.24   msaitoh hide void	mc_putpacket(struct mc_softc *, u_int);
     66      1.24   msaitoh hide int	mc_dmaintr(void *);
     67      1.24   msaitoh hide void	mc_reset_rxdma(struct mc_softc *);
     68      1.24   msaitoh hide void	mc_reset_txdma(struct mc_softc *);
     69      1.24   msaitoh hide void	mc_select_utp(struct mc_softc *);
     70      1.24   msaitoh hide void	mc_select_aui(struct mc_softc *);
     71      1.24   msaitoh hide int	mc_mediachange(struct mc_softc *);
     72      1.24   msaitoh hide void	mc_mediastatus(struct mc_softc *, struct ifmediareq *);
     73       1.1    tsubai 
     74       1.1    tsubai int mc_supmedia[] = {
     75       1.1    tsubai 	IFM_ETHER | IFM_10_T,
     76       1.1    tsubai 	IFM_ETHER | IFM_10_5,
     77       1.1    tsubai 	/*IFM_ETHER | IFM_AUTO,*/
     78       1.1    tsubai };
     79       1.1    tsubai 
     80      1.24   msaitoh #define N_SUPMEDIA __arraycount(mc_supmedia)
     81       1.1    tsubai 
     82      1.22  macallan CFATTACH_DECL_NEW(mc, sizeof(struct mc_softc),
     83       1.7   thorpej     mc_match, mc_attach, NULL, NULL);
     84       1.1    tsubai 
     85       1.1    tsubai hide int
     86      1.19      matt mc_match(device_t parent, cfdata_t cf, void *aux)
     87       1.1    tsubai {
     88       1.1    tsubai 	struct confargs *ca = aux;
     89       1.1    tsubai 
     90       1.1    tsubai 	if (strcmp(ca->ca_name, "mace") != 0)
     91       1.1    tsubai 		return 0;
     92       1.1    tsubai 
     93       1.1    tsubai 	/* requires 6 regs */
     94       1.1    tsubai 	if (ca->ca_nreg / sizeof(int) != 6)
     95       1.1    tsubai 		return 0;
     96       1.1    tsubai 
     97       1.1    tsubai 	/* requires 3 intrs */
     98       1.1    tsubai 	if (ca->ca_nintr / sizeof(int) != 3)
     99       1.1    tsubai 		return 0;
    100       1.1    tsubai 
    101       1.1    tsubai 	return 1;
    102       1.1    tsubai }
    103       1.1    tsubai 
    104       1.1    tsubai hide void
    105      1.19      matt mc_attach(device_t parent, device_t self, void *aux)
    106       1.1    tsubai {
    107       1.1    tsubai 	struct confargs *ca = aux;
    108      1.19      matt 	struct mc_softc *sc = device_private(self);
    109      1.24   msaitoh 	uint8_t myaddr[ETHER_ADDR_LEN];
    110       1.1    tsubai 	u_int *reg;
    111  1.26.8.1   thorpej 	char intr_xname[INTRDEVNAMEBUF];
    112       1.1    tsubai 
    113      1.22  macallan 	sc->sc_dev = self;
    114       1.1    tsubai 	sc->sc_node = ca->ca_node;
    115      1.14  macallan 	sc->sc_regt = ca->ca_tag;
    116       1.1    tsubai 
    117       1.1    tsubai 	reg  = ca->ca_reg;
    118       1.1    tsubai 	reg[0] += ca->ca_baseaddr;
    119       1.1    tsubai 	reg[2] += ca->ca_baseaddr;
    120       1.1    tsubai 	reg[4] += ca->ca_baseaddr;
    121       1.1    tsubai 
    122      1.20      matt 	sc->sc_txdma = mapiodev(reg[2], reg[3], false);
    123      1.20      matt 	sc->sc_rxdma = mapiodev(reg[4], reg[5], false);
    124       1.1    tsubai 	bus_space_map(sc->sc_regt, reg[0], reg[1], 0, &sc->sc_regh);
    125      1.14  macallan 
    126       1.1    tsubai 	sc->sc_tail = 0;
    127      1.23  macallan 	sc->sc_txdmacmd = dbdma_alloc(sizeof(dbdma_command_t) * 2, NULL);
    128      1.23  macallan 	sc->sc_rxdmacmd = (void *)dbdma_alloc(sizeof(dbdma_command_t) * 8,
    129      1.23  macallan 	    NULL);
    130       1.5       wiz 	memset(sc->sc_txdmacmd, 0, sizeof(dbdma_command_t) * 2);
    131       1.5       wiz 	memset(sc->sc_rxdmacmd, 0, sizeof(dbdma_command_t) * 8);
    132       1.1    tsubai 
    133       1.1    tsubai 	printf(": irq %d,%d,%d",
    134       1.1    tsubai 		ca->ca_intr[0], ca->ca_intr[1], ca->ca_intr[2]);
    135       1.1    tsubai 
    136       1.1    tsubai 	if (OF_getprop(sc->sc_node, "local-mac-address", myaddr, 6) != 6) {
    137       1.1    tsubai 		printf(": failed to get MAC address.\n");
    138       1.1    tsubai 		return;
    139       1.1    tsubai 	}
    140       1.1    tsubai 
    141      1.24   msaitoh 	/* Allocate memory for transmit buffer and mark it non-cacheable */
    142       1.8   thorpej 	sc->sc_txbuf = malloc(PAGE_SIZE, M_DEVBUF, M_WAITOK);
    143       1.1    tsubai 	sc->sc_txbuf_phys = kvtop(sc->sc_txbuf);
    144       1.8   thorpej 	memset(sc->sc_txbuf, 0, PAGE_SIZE);
    145       1.1    tsubai 
    146       1.1    tsubai 	/*
    147      1.24   msaitoh 	 * Allocate memory for receive buffer and mark it non-cacheable
    148       1.1    tsubai 	 * XXX This should use the bus_dma interface, since the buffer
    149       1.1    tsubai 	 * needs to be physically contiguous. However, it seems that
    150       1.1    tsubai 	 * at least on my system, malloc() does allocate contiguous
    151       1.1    tsubai 	 * memory. If it's not, suggest reducing the number of buffers
    152       1.1    tsubai 	 * to 2, which will fit in one 4K page.
    153       1.1    tsubai 	 */
    154       1.8   thorpej 	sc->sc_rxbuf = malloc(MC_NPAGES * PAGE_SIZE, M_DEVBUF, M_WAITOK);
    155       1.1    tsubai 	sc->sc_rxbuf_phys = kvtop(sc->sc_rxbuf);
    156       1.8   thorpej 	memset(sc->sc_rxbuf, 0, MC_NPAGES * PAGE_SIZE);
    157       1.1    tsubai 
    158       1.1    tsubai 	if ((int)sc->sc_txbuf & PGOFSET)
    159       1.1    tsubai 		printf("txbuf is not page-aligned\n");
    160       1.1    tsubai 	if ((int)sc->sc_rxbuf & PGOFSET)
    161       1.1    tsubai 		printf("rxbuf is not page-aligned\n");
    162       1.1    tsubai 
    163       1.1    tsubai 	sc->sc_bus_init = mc_init;
    164       1.1    tsubai 	sc->sc_putpacket = mc_putpacket;
    165       1.1    tsubai 
    166      1.24   msaitoh 	/* Disable receive DMA */
    167       1.1    tsubai 	dbdma_reset(sc->sc_rxdma);
    168       1.1    tsubai 
    169      1.24   msaitoh 	/* Disable transmit DMA */
    170       1.1    tsubai 	dbdma_reset(sc->sc_txdma);
    171       1.1    tsubai 
    172      1.24   msaitoh 	/* Install interrupt handlers */
    173  1.26.8.1   thorpej 
    174      1.13   garbled 	/*intr_establish(ca->ca_intr[1], IST_EDGE, IPL_NET, mc_dmaintr, sc);*/
    175  1.26.8.1   thorpej 
    176  1.26.8.1   thorpej 	snprintf(intr_xname, sizeof(intr_xname), "%s dma", device_xname(self));
    177  1.26.8.1   thorpej 	intr_establish_xname(ca->ca_intr[2], IST_EDGE, IPL_NET, mc_dmaintr, sc,
    178  1.26.8.1   thorpej 	    intr_xname);
    179  1.26.8.1   thorpej 
    180  1.26.8.1   thorpej 	snprintf(intr_xname, sizeof(intr_xname), "%s pio", device_xname(self));
    181  1.26.8.1   thorpej 	intr_establish_xname(ca->ca_intr[0], IST_EDGE, IPL_NET, mcintr, sc,
    182  1.26.8.1   thorpej 	    intr_xname);
    183       1.1    tsubai 
    184       1.1    tsubai 	sc->sc_biucc = XMTSP_64;
    185       1.1    tsubai 	sc->sc_fifocc = XMTFW_16 | RCVFW_64 | XMTFWU | RCVFWU |
    186       1.1    tsubai 	    XMTBRST | RCVBRST;
    187       1.1    tsubai 	/*sc->sc_plscc = PORTSEL_10BT;*/
    188       1.1    tsubai 	sc->sc_plscc = PORTSEL_GPSI | ENPLSIO;
    189       1.1    tsubai 
    190       1.1    tsubai 	/* mcsetup returns 1 if something fails */
    191       1.1    tsubai 	if (mcsetup(sc, myaddr)) {
    192       1.1    tsubai 		printf("mcsetup returns non zero\n");
    193       1.1    tsubai 		return;
    194       1.1    tsubai 	}
    195       1.1    tsubai #ifdef NOTYET
    196       1.1    tsubai 	sc->sc_mediachange = mc_mediachange;
    197       1.1    tsubai 	sc->sc_mediastatus = mc_mediastatus;
    198       1.1    tsubai 	sc->sc_supmedia = mc_supmedia;
    199       1.1    tsubai 	sc->sc_nsupmedia = N_SUPMEDIA;
    200       1.1    tsubai 	sc->sc_defaultmedia = IFM_ETHER | IFM_10_T;
    201       1.1    tsubai #endif
    202       1.1    tsubai }
    203       1.1    tsubai 
    204       1.1    tsubai /* Bus-specific initialization */
    205       1.1    tsubai hide void
    206      1.16       dsl mc_init(struct mc_softc *sc)
    207       1.1    tsubai {
    208       1.1    tsubai 	mc_reset_rxdma(sc);
    209       1.1    tsubai 	mc_reset_txdma(sc);
    210       1.1    tsubai }
    211       1.1    tsubai 
    212       1.1    tsubai hide void
    213      1.16       dsl mc_putpacket(struct mc_softc *sc, u_int len)
    214       1.1    tsubai {
    215       1.1    tsubai 	dbdma_command_t *cmd = sc->sc_txdmacmd;
    216       1.1    tsubai 
    217       1.1    tsubai 	DBDMA_BUILD(cmd, DBDMA_CMD_OUT_LAST, 0, len, sc->sc_txbuf_phys,
    218       1.1    tsubai 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
    219       1.1    tsubai 
    220       1.1    tsubai 	dbdma_start(sc->sc_txdma, sc->sc_txdmacmd);
    221       1.1    tsubai }
    222       1.1    tsubai 
    223       1.1    tsubai /*
    224       1.1    tsubai  * Interrupt handler for the MACE DMA completion interrupts
    225       1.1    tsubai  */
    226       1.1    tsubai int
    227      1.16       dsl mc_dmaintr(void *arg)
    228       1.1    tsubai {
    229       1.1    tsubai 	struct mc_softc *sc = arg;
    230       1.1    tsubai 	int status, offset, statoff;
    231       1.1    tsubai 	int datalen, resid;
    232       1.1    tsubai 	int i, n;
    233       1.1    tsubai 	dbdma_command_t *cmd;
    234       1.1    tsubai 
    235       1.1    tsubai 	/* We've received some packets from the MACE */
    236       1.1    tsubai 
    237       1.1    tsubai 	/* Loop through, processing each of the packets */
    238       1.1    tsubai 	i = sc->sc_tail;
    239       1.1    tsubai 	for (n = 0; n < MC_RXDMABUFS; n++, i++) {
    240       1.1    tsubai 		if (i == MC_RXDMABUFS)
    241       1.1    tsubai 			i = 0;
    242       1.1    tsubai 
    243       1.1    tsubai 		cmd = &sc->sc_rxdmacmd[i];
    244       1.2    tsubai 		/* flushcache(cmd, sizeof(dbdma_command_t)); */
    245      1.13   garbled 		status = in16rb(&cmd->d_status);
    246      1.13   garbled 		resid = in16rb(&cmd->d_resid);
    247       1.1    tsubai 
    248       1.1    tsubai 		/*if ((status & D_ACTIVE) == 0)*/
    249       1.1    tsubai 		if ((status & 0x40) == 0)
    250       1.1    tsubai 			continue;
    251       1.1    tsubai 
    252       1.1    tsubai #if 1
    253      1.13   garbled 		if (in16rb(&cmd->d_count) != ETHERMTU + 22)
    254       1.1    tsubai 			printf("bad d_count\n");
    255       1.1    tsubai #endif
    256       1.1    tsubai 
    257      1.13   garbled 		datalen = in16rb(&cmd->d_count) - resid;
    258       1.1    tsubai 		datalen -= 4;	/* 4 == status bytes */
    259       1.1    tsubai 
    260       1.1    tsubai 		if (datalen < 4 + sizeof(struct ether_header)) {
    261       1.1    tsubai 			printf("short packet len=%d\n", datalen);
    262       1.1    tsubai 			/* continue; */
    263       1.1    tsubai 			goto next;
    264       1.1    tsubai 		}
    265       1.1    tsubai 
    266       1.1    tsubai 		offset = i * MC_BUFSIZE;
    267       1.1    tsubai 		statoff = offset + datalen;
    268       1.1    tsubai 
    269       1.1    tsubai 		DBDMA_BUILD_CMD(cmd, DBDMA_CMD_STOP, 0, 0, 0, 0);
    270      1.11     perry 		__asm volatile("eieio");
    271       1.1    tsubai 
    272       1.2    tsubai 		/* flushcache(sc->sc_rxbuf + offset, datalen + 4); */
    273       1.2    tsubai 
    274       1.1    tsubai 		sc->sc_rxframe.rx_rcvcnt = sc->sc_rxbuf[statoff + 0];
    275       1.1    tsubai 		sc->sc_rxframe.rx_rcvsts = sc->sc_rxbuf[statoff + 1];
    276      1.24   msaitoh 		sc->sc_rxframe.rx_rntpc	 = sc->sc_rxbuf[statoff + 2];
    277      1.24   msaitoh 		sc->sc_rxframe.rx_rcvcc	 = sc->sc_rxbuf[statoff + 3];
    278      1.24   msaitoh 		sc->sc_rxframe.rx_frame	 = sc->sc_rxbuf + offset;
    279       1.1    tsubai 
    280       1.1    tsubai 		mc_rint(sc);
    281       1.1    tsubai 
    282       1.1    tsubai next:
    283       1.1    tsubai 		DBDMA_BUILD_CMD(cmd, DBDMA_CMD_IN_LAST, 0, DBDMA_INT_ALWAYS,
    284       1.1    tsubai 			DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
    285      1.11     perry 		__asm volatile("eieio");
    286       1.1    tsubai 		cmd->d_status = 0;
    287       1.1    tsubai 		cmd->d_resid = 0;
    288       1.1    tsubai 		sc->sc_tail = i + 1;
    289       1.1    tsubai 	}
    290       1.1    tsubai 
    291       1.1    tsubai 	dbdma_continue(sc->sc_rxdma);
    292       1.1    tsubai 
    293       1.1    tsubai 	return 1;
    294       1.1    tsubai }
    295       1.1    tsubai 
    296       1.1    tsubai hide void
    297      1.16       dsl mc_reset_rxdma(struct mc_softc *sc)
    298       1.1    tsubai {
    299       1.1    tsubai 	dbdma_command_t *cmd = sc->sc_rxdmacmd;
    300       1.1    tsubai 	dbdma_regmap_t *dmareg = sc->sc_rxdma;
    301       1.1    tsubai 	int i;
    302      1.24   msaitoh 	uint8_t maccc;
    303       1.1    tsubai 
    304       1.1    tsubai 	/* Disable receiver, reset the DMA channels */
    305       1.1    tsubai 	maccc = NIC_GET(sc, MACE_MACCC);
    306       1.1    tsubai 	NIC_PUT(sc, MACE_MACCC, maccc & ~ENRCV);
    307       1.1    tsubai 
    308       1.1    tsubai 	dbdma_reset(dmareg);
    309       1.1    tsubai 
    310       1.1    tsubai 	for (i = 0; i < MC_RXDMABUFS; i++) {
    311       1.1    tsubai 		DBDMA_BUILD(cmd, DBDMA_CMD_IN_LAST, 0, ETHERMTU + 22,
    312       1.1    tsubai 			sc->sc_rxbuf_phys + MC_BUFSIZE * i, DBDMA_INT_ALWAYS,
    313       1.1    tsubai 			DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
    314       1.1    tsubai 		cmd++;
    315       1.1    tsubai 	}
    316       1.1    tsubai 
    317       1.1    tsubai 	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
    318       1.1    tsubai 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
    319      1.13   garbled 	out32rb(&cmd->d_cmddep, kvtop((void *)sc->sc_rxdmacmd));
    320       1.1    tsubai 	cmd++;
    321       1.1    tsubai 
    322       1.1    tsubai 	dbdma_start(dmareg, sc->sc_rxdmacmd);
    323       1.1    tsubai 
    324       1.1    tsubai 	sc->sc_tail = 0;
    325       1.1    tsubai 
    326       1.1    tsubai 	/* Reenable receiver, reenable DMA */
    327       1.1    tsubai 	NIC_PUT(sc, MACE_MACCC, maccc);
    328       1.1    tsubai }
    329       1.1    tsubai 
    330       1.1    tsubai hide void
    331      1.16       dsl mc_reset_txdma(struct mc_softc *sc)
    332       1.1    tsubai {
    333       1.1    tsubai 	dbdma_command_t *cmd = sc->sc_txdmacmd;
    334       1.1    tsubai 	dbdma_regmap_t *dmareg = sc->sc_txdma;
    335      1.24   msaitoh 	uint8_t maccc;
    336       1.1    tsubai 
    337      1.24   msaitoh 	/* Disable transmitter */
    338       1.1    tsubai 	maccc = NIC_GET(sc, MACE_MACCC);
    339       1.1    tsubai 	NIC_PUT(sc, MACE_MACCC, maccc & ~ENXMT);
    340       1.1    tsubai 
    341       1.1    tsubai 	dbdma_reset(dmareg);
    342       1.1    tsubai 
    343       1.1    tsubai 	DBDMA_BUILD(cmd, DBDMA_CMD_OUT_LAST, 0, 0, sc->sc_txbuf_phys,
    344       1.1    tsubai 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
    345       1.1    tsubai 	cmd++;
    346       1.1    tsubai 	DBDMA_BUILD(cmd, DBDMA_CMD_STOP, 0, 0, 0,
    347       1.1    tsubai 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
    348       1.1    tsubai 
    349       1.1    tsubai 	out32rb(&dmareg->d_cmdptrhi, 0);
    350      1.12  christos 	out32rb(&dmareg->d_cmdptrlo, kvtop((void *)sc->sc_txdmacmd));
    351       1.1    tsubai 
    352      1.24   msaitoh 	/* Restore old value */
    353       1.1    tsubai 	NIC_PUT(sc, MACE_MACCC, maccc);
    354       1.1    tsubai }
    355       1.1    tsubai 
    356       1.1    tsubai void
    357      1.16       dsl mc_select_utp(struct mc_softc *sc)
    358       1.1    tsubai {
    359      1.24   msaitoh 
    360       1.1    tsubai 	sc->sc_plscc = PORTSEL_GPSI | ENPLSIO;
    361       1.1    tsubai }
    362       1.1    tsubai 
    363       1.1    tsubai void
    364      1.16       dsl mc_select_aui(struct mc_softc *sc)
    365       1.1    tsubai {
    366      1.24   msaitoh 
    367       1.1    tsubai 	sc->sc_plscc = PORTSEL_AUI;
    368       1.1    tsubai }
    369       1.1    tsubai 
    370       1.1    tsubai int
    371      1.16       dsl mc_mediachange(struct mc_softc *sc)
    372       1.1    tsubai {
    373      1.26   msaitoh 	struct ifmedia *ifm = &sc->sc_media;
    374       1.1    tsubai 
    375      1.26   msaitoh 	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
    376       1.1    tsubai 		return EINVAL;
    377       1.1    tsubai 
    378      1.26   msaitoh 	switch (IFM_SUBTYPE(ifm->ifm_media)) {
    379       1.1    tsubai 
    380       1.1    tsubai 	case IFM_10_T:
    381       1.1    tsubai 		mc_select_utp(sc);
    382       1.1    tsubai 		break;
    383       1.1    tsubai 
    384       1.1    tsubai 	case IFM_10_5:
    385       1.1    tsubai 		mc_select_aui(sc);
    386       1.1    tsubai 		break;
    387       1.1    tsubai 
    388       1.1    tsubai 	default:
    389       1.1    tsubai 		return EINVAL;
    390       1.1    tsubai 	}
    391       1.1    tsubai 
    392       1.1    tsubai 	return 0;
    393       1.1    tsubai }
    394       1.1    tsubai 
    395       1.1    tsubai void
    396      1.16       dsl mc_mediastatus(struct mc_softc *sc, struct ifmediareq *ifmr)
    397       1.1    tsubai {
    398      1.24   msaitoh 
    399       1.1    tsubai 	if (sc->sc_plscc == PORTSEL_AUI)
    400       1.1    tsubai 		ifmr->ifm_active = IFM_ETHER | IFM_10_5;
    401       1.1    tsubai 	else
    402       1.1    tsubai 		ifmr->ifm_active = IFM_ETHER | IFM_10_T;
    403       1.1    tsubai }
    404