if_my.c revision 148945
1119418Sobrien/*- 2119418Sobrien * Written by: yen_cw@myson.com.tw 393746Sjulian * Copyright (c) 2002 Myson Technology Inc. 493746Sjulian * All rights reserved. 593746Sjulian * 693746Sjulian * Redistribution and use in source and binary forms, with or without 793746Sjulian * modification, are permitted provided that the following conditions 893746Sjulian * are met: 993746Sjulian * 1. Redistributions of source code must retain the above copyright 1093746Sjulian * notice, this list of conditions, and the following disclaimer, 1193746Sjulian * without modification, immediately at the beginning of the file. 1293746Sjulian * 2. The name of the author may not be used to endorse or promote products 1393746Sjulian * derived from this software without specific prior written permission. 1493746Sjulian * 1593746Sjulian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1693746Sjulian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1793746Sjulian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1893746Sjulian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 1993746Sjulian * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2093746Sjulian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2193746Sjulian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2293746Sjulian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2393746Sjulian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2493746Sjulian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2593746Sjulian * SUCH DAMAGE. 2693746Sjulian * 27119418Sobrien * Myson fast ethernet PCI NIC driver, available at: http://www.myson.com.tw/ 2893746Sjulian */ 29113038Sobrien 30113038Sobrien#include <sys/cdefs.h> 31113038Sobrien__FBSDID("$FreeBSD: head/sys/dev/my/if_my.c 148945 2005-08-10 20:15:56Z jhb $"); 32113038Sobrien 3393746Sjulian#include <sys/param.h> 3493746Sjulian#include <sys/systm.h> 3593746Sjulian#include <sys/sockio.h> 3693746Sjulian#include <sys/mbuf.h> 3793746Sjulian#include <sys/malloc.h> 3893746Sjulian#include <sys/kernel.h> 3993746Sjulian#include <sys/socket.h> 4093746Sjulian#include <sys/queue.h> 4193746Sjulian#include <sys/types.h> 4293746Sjulian#include <sys/bus.h> 4393746Sjulian#include <sys/module.h> 4495807Sjulian#include <sys/lock.h> 4595807Sjulian#include <sys/mutex.h> 4693746Sjulian 4793746Sjulian#define NBPFILTER 1 4893746Sjulian 4993746Sjulian#include <net/if.h> 5093746Sjulian#include <net/if_arp.h> 5193746Sjulian#include <net/ethernet.h> 5293746Sjulian#include <net/if_media.h> 53147256Sbrooks#include <net/if_types.h> 5493746Sjulian#include <net/if_dl.h> 5593746Sjulian#include <net/bpf.h> 5693746Sjulian 5793746Sjulian#include <vm/vm.h> /* for vtophys */ 5893746Sjulian#include <vm/pmap.h> /* for vtophys */ 5993746Sjulian#include <machine/clock.h> /* for DELAY */ 6093746Sjulian#include <machine/bus.h> 6193746Sjulian#include <machine/resource.h> 6293746Sjulian#include <sys/bus.h> 6393746Sjulian#include <sys/rman.h> 6493746Sjulian 65119285Simp#include <dev/pci/pcireg.h> 66119285Simp#include <dev/pci/pcivar.h> 6793746Sjulian 6893746Sjulian#include <dev/mii/mii.h> 6993746Sjulian#include <dev/mii/miivar.h> 7093746Sjulian 7193746Sjulian#include "miibus_if.h" 7293746Sjulian 7393746Sjulian/* 7493746Sjulian * #define MY_USEIOSPACE 7593746Sjulian */ 7693746Sjulian 7793746Sjulianstatic int MY_USEIOSPACE = 1; 7893746Sjulian 7993746Sjulian#if (MY_USEIOSPACE) 8094904Sjulian#define MY_RES SYS_RES_IOPORT 8194904Sjulian#define MY_RID MY_PCI_LOIO 8293746Sjulian#else 8394904Sjulian#define MY_RES SYS_RES_MEMORY 8494904Sjulian#define MY_RID MY_PCI_LOMEM 8593746Sjulian#endif 8693746Sjulian 8793746Sjulian 8893746Sjulian#include <dev/my/if_myreg.h> 8993746Sjulian 9093746Sjulian#ifndef lint 9193746Sjulianstatic const char rcsid[] = 92119285Simp"$Id: if_my.c,v 1.16 2003/04/15 06:37:25 mdodd Exp $"; 9393746Sjulian#endif 9493746Sjulian 9593746Sjulian/* 9693746Sjulian * Various supported device vendors/types and their names. 9793746Sjulian */ 9893746Sjulianstruct my_type *my_info_tmp; 9993746Sjulianstatic struct my_type my_devs[] = { 10093746Sjulian {MYSONVENDORID, MTD800ID, "Myson MTD80X Based Fast Ethernet Card"}, 10193746Sjulian {MYSONVENDORID, MTD803ID, "Myson MTD80X Based Fast Ethernet Card"}, 10293746Sjulian {MYSONVENDORID, MTD891ID, "Myson MTD89X Based Giga Ethernet Card"}, 10393746Sjulian {0, 0, NULL} 10493746Sjulian}; 10593746Sjulian 10693746Sjulian/* 10793746Sjulian * Various supported PHY vendors/types and their names. Note that this driver 10893746Sjulian * will work with pretty much any MII-compliant PHY, so failure to positively 10993746Sjulian * identify the chip is not a fatal error. 11093746Sjulian */ 11193746Sjulianstatic struct my_type my_phys[] = { 11293746Sjulian {MysonPHYID0, MysonPHYID0, "<MYSON MTD981>"}, 11393746Sjulian {SeeqPHYID0, SeeqPHYID0, "<SEEQ 80225>"}, 11493746Sjulian {AhdocPHYID0, AhdocPHYID0, "<AHDOC 101>"}, 11593746Sjulian {MarvellPHYID0, MarvellPHYID0, "<MARVELL 88E1000>"}, 11693746Sjulian {LevelOnePHYID0, LevelOnePHYID0, "<LevelOne LXT1000>"}, 11793746Sjulian {0, 0, "<MII-compliant physical interface>"} 11893746Sjulian}; 11993746Sjulian 12093746Sjulianstatic int my_probe(device_t); 12193746Sjulianstatic int my_attach(device_t); 12293746Sjulianstatic int my_detach(device_t); 12393746Sjulianstatic int my_newbuf(struct my_softc *, struct my_chain_onefrag *); 12493746Sjulianstatic int my_encap(struct my_softc *, struct my_chain *, struct mbuf *); 12593746Sjulianstatic void my_rxeof(struct my_softc *); 12693746Sjulianstatic void my_txeof(struct my_softc *); 12793746Sjulianstatic void my_txeoc(struct my_softc *); 12893746Sjulianstatic void my_intr(void *); 12993746Sjulianstatic void my_start(struct ifnet *); 13093746Sjulianstatic int my_ioctl(struct ifnet *, u_long, caddr_t); 13193746Sjulianstatic void my_init(void *); 13293746Sjulianstatic void my_stop(struct my_softc *); 13393746Sjulianstatic void my_watchdog(struct ifnet *); 13493746Sjulianstatic void my_shutdown(device_t); 13593746Sjulianstatic int my_ifmedia_upd(struct ifnet *); 13693746Sjulianstatic void my_ifmedia_sts(struct ifnet *, struct ifmediareq *); 13793746Sjulianstatic u_int16_t my_phy_readreg(struct my_softc *, int); 13893746Sjulianstatic void my_phy_writereg(struct my_softc *, int, int); 13993746Sjulianstatic void my_autoneg_xmit(struct my_softc *); 14093746Sjulianstatic void my_autoneg_mii(struct my_softc *, int, int); 14193746Sjulianstatic void my_setmode_mii(struct my_softc *, int); 14293746Sjulianstatic void my_getmode_mii(struct my_softc *); 14393746Sjulianstatic void my_setcfg(struct my_softc *, int); 14493746Sjulianstatic void my_setmulti(struct my_softc *); 14593746Sjulianstatic void my_reset(struct my_softc *); 14693746Sjulianstatic int my_list_rx_init(struct my_softc *); 14793746Sjulianstatic int my_list_tx_init(struct my_softc *); 14893746Sjulianstatic long my_send_cmd_to_phy(struct my_softc *, int, int); 14993746Sjulian 150106696Salfred#define MY_SETBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x)) 151106696Salfred#define MY_CLRBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x)) 15293746Sjulian 15393746Sjulianstatic device_method_t my_methods[] = { 15493746Sjulian /* Device interface */ 15593746Sjulian DEVMETHOD(device_probe, my_probe), 15693746Sjulian DEVMETHOD(device_attach, my_attach), 15793746Sjulian DEVMETHOD(device_detach, my_detach), 15893746Sjulian DEVMETHOD(device_shutdown, my_shutdown), 15993746Sjulian 16093746Sjulian {0, 0} 16193746Sjulian}; 16293746Sjulian 16393746Sjulianstatic driver_t my_driver = { 16493746Sjulian "my", 16593746Sjulian my_methods, 16693746Sjulian sizeof(struct my_softc) 16793746Sjulian}; 16893746Sjulian 16993746Sjulianstatic devclass_t my_devclass; 17093746Sjulian 171113506SmdoddDRIVER_MODULE(my, pci, my_driver, my_devclass, 0, 0); 172113506SmdoddMODULE_DEPEND(my, pci, 1, 1, 1); 173113506SmdoddMODULE_DEPEND(my, ether, 1, 1, 1); 17493746Sjulian 17593746Sjulianstatic long 17693746Sjulianmy_send_cmd_to_phy(struct my_softc * sc, int opcode, int regad) 17793746Sjulian{ 17893746Sjulian long miir; 17993746Sjulian int i; 18093746Sjulian int mask, data; 18193746Sjulian 18293746Sjulian MY_LOCK(sc); 18393746Sjulian 18493746Sjulian /* enable MII output */ 18593746Sjulian miir = CSR_READ_4(sc, MY_MANAGEMENT); 18693746Sjulian miir &= 0xfffffff0; 18793746Sjulian 18893746Sjulian miir |= MY_MASK_MIIR_MII_WRITE + MY_MASK_MIIR_MII_MDO; 18993746Sjulian 19093746Sjulian /* send 32 1's preamble */ 19193746Sjulian for (i = 0; i < 32; i++) { 19293746Sjulian /* low MDC; MDO is already high (miir) */ 19393746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 19493746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 19593746Sjulian 19693746Sjulian /* high MDC */ 19793746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 19893746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 19993746Sjulian } 20093746Sjulian 20193746Sjulian /* calculate ST+OP+PHYAD+REGAD+TA */ 20293746Sjulian data = opcode | (sc->my_phy_addr << 7) | (regad << 2); 20393746Sjulian 20493746Sjulian /* sent out */ 20593746Sjulian mask = 0x8000; 20693746Sjulian while (mask) { 20793746Sjulian /* low MDC, prepare MDO */ 20893746Sjulian miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO); 20993746Sjulian if (mask & data) 21093746Sjulian miir |= MY_MASK_MIIR_MII_MDO; 21193746Sjulian 21293746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 21393746Sjulian /* high MDC */ 21493746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 21593746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 21693746Sjulian DELAY(30); 21793746Sjulian 21893746Sjulian /* next */ 21993746Sjulian mask >>= 1; 22093746Sjulian if (mask == 0x2 && opcode == MY_OP_READ) 22193746Sjulian miir &= ~MY_MASK_MIIR_MII_WRITE; 22293746Sjulian } 22393746Sjulian 22493746Sjulian MY_UNLOCK(sc); 22593746Sjulian return miir; 22693746Sjulian} 22793746Sjulian 22893746Sjulian 229148945Sjhbstatic u_int16_t 23093746Sjulianmy_phy_readreg(struct my_softc * sc, int reg) 23193746Sjulian{ 23293746Sjulian long miir; 23393746Sjulian int mask, data; 23493746Sjulian 23593746Sjulian MY_LOCK(sc); 23693746Sjulian 23793746Sjulian if (sc->my_info->my_did == MTD803ID) 23893746Sjulian data = CSR_READ_2(sc, MY_PHYBASE + reg * 2); 23993746Sjulian else { 24093746Sjulian miir = my_send_cmd_to_phy(sc, MY_OP_READ, reg); 24193746Sjulian 24293746Sjulian /* read data */ 24393746Sjulian mask = 0x8000; 24493746Sjulian data = 0; 24593746Sjulian while (mask) { 24693746Sjulian /* low MDC */ 24793746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 24893746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 24993746Sjulian 25093746Sjulian /* read MDI */ 25193746Sjulian miir = CSR_READ_4(sc, MY_MANAGEMENT); 25293746Sjulian if (miir & MY_MASK_MIIR_MII_MDI) 25393746Sjulian data |= mask; 25493746Sjulian 25593746Sjulian /* high MDC, and wait */ 25693746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 25793746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 25893746Sjulian DELAY(30); 25993746Sjulian 26093746Sjulian /* next */ 26193746Sjulian mask >>= 1; 26293746Sjulian } 26393746Sjulian 26493746Sjulian /* low MDC */ 26593746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 26693746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 26793746Sjulian } 26893746Sjulian 26993746Sjulian MY_UNLOCK(sc); 27093746Sjulian return (u_int16_t) data; 27193746Sjulian} 27293746Sjulian 27393746Sjulian 27493746Sjulianstatic void 27593746Sjulianmy_phy_writereg(struct my_softc * sc, int reg, int data) 27693746Sjulian{ 27793746Sjulian long miir; 27893746Sjulian int mask; 27993746Sjulian 28093746Sjulian MY_LOCK(sc); 28193746Sjulian 28293746Sjulian if (sc->my_info->my_did == MTD803ID) 28393746Sjulian CSR_WRITE_2(sc, MY_PHYBASE + reg * 2, data); 28493746Sjulian else { 28593746Sjulian miir = my_send_cmd_to_phy(sc, MY_OP_WRITE, reg); 28693746Sjulian 28793746Sjulian /* write data */ 28893746Sjulian mask = 0x8000; 28993746Sjulian while (mask) { 29093746Sjulian /* low MDC, prepare MDO */ 29193746Sjulian miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO); 29293746Sjulian if (mask & data) 29393746Sjulian miir |= MY_MASK_MIIR_MII_MDO; 29493746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 29593746Sjulian DELAY(1); 29693746Sjulian 29793746Sjulian /* high MDC */ 29893746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 29993746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 30093746Sjulian DELAY(1); 30193746Sjulian 30293746Sjulian /* next */ 30393746Sjulian mask >>= 1; 30493746Sjulian } 30593746Sjulian 30693746Sjulian /* low MDC */ 30793746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 30893746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 30993746Sjulian } 31093746Sjulian MY_UNLOCK(sc); 31193746Sjulian return; 31293746Sjulian} 31393746Sjulian 31493746Sjulian 31593746Sjulian/* 31693746Sjulian * Program the 64-bit multicast hash filter. 31793746Sjulian */ 31893746Sjulianstatic void 31993746Sjulianmy_setmulti(struct my_softc * sc) 32093746Sjulian{ 32193746Sjulian struct ifnet *ifp; 32293746Sjulian int h = 0; 32393746Sjulian u_int32_t hashes[2] = {0, 0}; 32493746Sjulian struct ifmultiaddr *ifma; 32593746Sjulian u_int32_t rxfilt; 32693746Sjulian int mcnt = 0; 32793746Sjulian 32893746Sjulian MY_LOCK(sc); 32993746Sjulian 330147256Sbrooks ifp = sc->my_ifp; 33193746Sjulian 33293746Sjulian rxfilt = CSR_READ_4(sc, MY_TCRRCR); 33393746Sjulian 33493746Sjulian if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 33593746Sjulian rxfilt |= MY_AM; 33693746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 33793746Sjulian CSR_WRITE_4(sc, MY_MAR0, 0xFFFFFFFF); 33893746Sjulian CSR_WRITE_4(sc, MY_MAR1, 0xFFFFFFFF); 33993746Sjulian 34093746Sjulian MY_UNLOCK(sc); 34193746Sjulian 34293746Sjulian return; 34393746Sjulian } 34493746Sjulian /* first, zot all the existing hash bits */ 34593746Sjulian CSR_WRITE_4(sc, MY_MAR0, 0); 34693746Sjulian CSR_WRITE_4(sc, MY_MAR1, 0); 34793746Sjulian 34893746Sjulian /* now program new ones */ 349148654Srwatson IF_ADDR_LOCK(ifp); 35093746Sjulian TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 35193746Sjulian if (ifma->ifma_addr->sa_family != AF_LINK) 35293746Sjulian continue; 353130270Snaddy h = ~ether_crc32_be(LLADDR((struct sockaddr_dl *) 354130270Snaddy ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 35593746Sjulian if (h < 32) 35693746Sjulian hashes[0] |= (1 << h); 35793746Sjulian else 35893746Sjulian hashes[1] |= (1 << (h - 32)); 35993746Sjulian mcnt++; 36093746Sjulian } 361148654Srwatson IF_ADDR_UNLOCK(ifp); 36293746Sjulian 36393746Sjulian if (mcnt) 36493746Sjulian rxfilt |= MY_AM; 36593746Sjulian else 36693746Sjulian rxfilt &= ~MY_AM; 36793746Sjulian CSR_WRITE_4(sc, MY_MAR0, hashes[0]); 36893746Sjulian CSR_WRITE_4(sc, MY_MAR1, hashes[1]); 36993746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 37093746Sjulian MY_UNLOCK(sc); 37193746Sjulian return; 37293746Sjulian} 37393746Sjulian 37493746Sjulian/* 37593746Sjulian * Initiate an autonegotiation session. 37693746Sjulian */ 37793746Sjulianstatic void 37893746Sjulianmy_autoneg_xmit(struct my_softc * sc) 37993746Sjulian{ 38093746Sjulian u_int16_t phy_sts = 0; 38193746Sjulian 38293746Sjulian MY_LOCK(sc); 38393746Sjulian 38493746Sjulian my_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET); 38593746Sjulian DELAY(500); 38693746Sjulian while (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET); 38793746Sjulian 38893746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMCR); 38993746Sjulian phy_sts |= PHY_BMCR_AUTONEGENBL | PHY_BMCR_AUTONEGRSTR; 39093746Sjulian my_phy_writereg(sc, PHY_BMCR, phy_sts); 39193746Sjulian 39293746Sjulian MY_UNLOCK(sc); 39393746Sjulian return; 39493746Sjulian} 39593746Sjulian 39693746Sjulian 39793746Sjulian/* 39893746Sjulian * Invoke autonegotiation on a PHY. 39993746Sjulian */ 40093746Sjulianstatic void 40193746Sjulianmy_autoneg_mii(struct my_softc * sc, int flag, int verbose) 40293746Sjulian{ 40393746Sjulian u_int16_t phy_sts = 0, media, advert, ability; 40493746Sjulian u_int16_t ability2 = 0; 40593746Sjulian struct ifnet *ifp; 40693746Sjulian struct ifmedia *ifm; 40793746Sjulian 40893746Sjulian MY_LOCK(sc); 40993746Sjulian 41093746Sjulian ifm = &sc->ifmedia; 411147256Sbrooks ifp = sc->my_ifp; 41293746Sjulian 41393746Sjulian ifm->ifm_media = IFM_ETHER | IFM_AUTO; 41493746Sjulian 41593746Sjulian#ifndef FORCE_AUTONEG_TFOUR 41693746Sjulian /* 41793746Sjulian * First, see if autoneg is supported. If not, there's no point in 41893746Sjulian * continuing. 41993746Sjulian */ 42093746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 42193746Sjulian if (!(phy_sts & PHY_BMSR_CANAUTONEG)) { 42293746Sjulian if (verbose) 423148945Sjhb if_printf(ifp, "autonegotiation not supported\n"); 42493746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 42593746Sjulian MY_UNLOCK(sc); 42693746Sjulian return; 42793746Sjulian } 42893746Sjulian#endif 42993746Sjulian switch (flag) { 43093746Sjulian case MY_FLAG_FORCEDELAY: 43193746Sjulian /* 43293746Sjulian * XXX Never use this option anywhere but in the probe 43393746Sjulian * routine: making the kernel stop dead in its tracks for 43493746Sjulian * three whole seconds after we've gone multi-user is really 43593746Sjulian * bad manners. 43693746Sjulian */ 43793746Sjulian my_autoneg_xmit(sc); 43893746Sjulian DELAY(5000000); 43993746Sjulian break; 44093746Sjulian case MY_FLAG_SCHEDDELAY: 44193746Sjulian /* 44293746Sjulian * Wait for the transmitter to go idle before starting an 44393746Sjulian * autoneg session, otherwise my_start() may clobber our 44493746Sjulian * timeout, and we don't want to allow transmission during an 44593746Sjulian * autoneg session since that can screw it up. 44693746Sjulian */ 44793746Sjulian if (sc->my_cdata.my_tx_head != NULL) { 44893746Sjulian sc->my_want_auto = 1; 44993746Sjulian MY_UNLOCK(sc); 45093746Sjulian return; 45193746Sjulian } 45293746Sjulian my_autoneg_xmit(sc); 45393746Sjulian ifp->if_timer = 5; 45493746Sjulian sc->my_autoneg = 1; 45593746Sjulian sc->my_want_auto = 0; 45693746Sjulian MY_UNLOCK(sc); 45793746Sjulian return; 45893746Sjulian case MY_FLAG_DELAYTIMEO: 45993746Sjulian ifp->if_timer = 0; 46093746Sjulian sc->my_autoneg = 0; 46193746Sjulian break; 46293746Sjulian default: 463148945Sjhb if_printf(ifp, "invalid autoneg flag: %d\n", flag); 46493746Sjulian return; 46593746Sjulian } 46693746Sjulian 46793746Sjulian if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) { 46893746Sjulian if (verbose) 469148945Sjhb if_printf(ifp, "autoneg complete, "); 47093746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 47193746Sjulian } else { 47293746Sjulian if (verbose) 473148945Sjhb if_printf(ifp, "autoneg not complete, "); 47493746Sjulian } 47593746Sjulian 47693746Sjulian media = my_phy_readreg(sc, PHY_BMCR); 47793746Sjulian 47893746Sjulian /* Link is good. Report modes and set duplex mode. */ 47993746Sjulian if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) { 48093746Sjulian if (verbose) 481148945Sjhb if_printf(ifp, "link status good. "); 48293746Sjulian advert = my_phy_readreg(sc, PHY_ANAR); 48393746Sjulian ability = my_phy_readreg(sc, PHY_LPAR); 48493746Sjulian if ((sc->my_pinfo->my_vid == MarvellPHYID0) || 48593746Sjulian (sc->my_pinfo->my_vid == LevelOnePHYID0)) { 48693746Sjulian ability2 = my_phy_readreg(sc, PHY_1000SR); 48793746Sjulian if (ability2 & PHY_1000SR_1000BTXFULL) { 48893746Sjulian advert = 0; 48993746Sjulian ability = 0; 49093746Sjulian /* 49193746Sjulian * this version did not support 1000M, 49293746Sjulian * ifm->ifm_media = 49395673Sphk * IFM_ETHER|IFM_1000_T|IFM_FDX; 49493746Sjulian */ 49593746Sjulian ifm->ifm_media = 49693746Sjulian IFM_ETHER | IFM_100_TX | IFM_FDX; 49793746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 49893746Sjulian media |= PHY_BMCR_1000; 49993746Sjulian media |= PHY_BMCR_DUPLEX; 50093746Sjulian printf("(full-duplex, 1000Mbps)\n"); 50193746Sjulian } else if (ability2 & PHY_1000SR_1000BTXHALF) { 50293746Sjulian advert = 0; 50393746Sjulian ability = 0; 50493746Sjulian /* 50593746Sjulian * this version did not support 1000M, 50695673Sphk * ifm->ifm_media = IFM_ETHER|IFM_1000_T; 50793746Sjulian */ 50893746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX; 50993746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 51093746Sjulian media &= ~PHY_BMCR_DUPLEX; 51193746Sjulian media |= PHY_BMCR_1000; 51293746Sjulian printf("(half-duplex, 1000Mbps)\n"); 51393746Sjulian } 51493746Sjulian } 51593746Sjulian if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) { 51693746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_T4; 51793746Sjulian media |= PHY_BMCR_SPEEDSEL; 51893746Sjulian media &= ~PHY_BMCR_DUPLEX; 51993746Sjulian printf("(100baseT4)\n"); 52093746Sjulian } else if (advert & PHY_ANAR_100BTXFULL && 52193746Sjulian ability & PHY_ANAR_100BTXFULL) { 52293746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 52393746Sjulian media |= PHY_BMCR_SPEEDSEL; 52493746Sjulian media |= PHY_BMCR_DUPLEX; 52593746Sjulian printf("(full-duplex, 100Mbps)\n"); 52693746Sjulian } else if (advert & PHY_ANAR_100BTXHALF && 52793746Sjulian ability & PHY_ANAR_100BTXHALF) { 52893746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 52993746Sjulian media |= PHY_BMCR_SPEEDSEL; 53093746Sjulian media &= ~PHY_BMCR_DUPLEX; 53193746Sjulian printf("(half-duplex, 100Mbps)\n"); 53293746Sjulian } else if (advert & PHY_ANAR_10BTFULL && 53393746Sjulian ability & PHY_ANAR_10BTFULL) { 53493746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 53593746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 53693746Sjulian media |= PHY_BMCR_DUPLEX; 53793746Sjulian printf("(full-duplex, 10Mbps)\n"); 53893746Sjulian } else if (advert) { 53993746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 54093746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 54193746Sjulian media &= ~PHY_BMCR_DUPLEX; 54293746Sjulian printf("(half-duplex, 10Mbps)\n"); 54393746Sjulian } 54493746Sjulian media &= ~PHY_BMCR_AUTONEGENBL; 54593746Sjulian 54693746Sjulian /* Set ASIC's duplex mode to match the PHY. */ 54793746Sjulian my_phy_writereg(sc, PHY_BMCR, media); 54893746Sjulian my_setcfg(sc, media); 54993746Sjulian } else { 55093746Sjulian if (verbose) 551148945Sjhb if_printf(ifp, "no carrier\n"); 55293746Sjulian } 55393746Sjulian 55493746Sjulian my_init(sc); 55593746Sjulian if (sc->my_tx_pend) { 55693746Sjulian sc->my_autoneg = 0; 55793746Sjulian sc->my_tx_pend = 0; 55893746Sjulian my_start(ifp); 55993746Sjulian } 56093746Sjulian MY_UNLOCK(sc); 56193746Sjulian return; 56293746Sjulian} 56393746Sjulian 56493746Sjulian/* 56593746Sjulian * To get PHY ability. 56693746Sjulian */ 56793746Sjulianstatic void 56893746Sjulianmy_getmode_mii(struct my_softc * sc) 56993746Sjulian{ 57093746Sjulian u_int16_t bmsr; 57193746Sjulian struct ifnet *ifp; 57293746Sjulian 57393746Sjulian MY_LOCK(sc); 574147256Sbrooks ifp = sc->my_ifp; 57593746Sjulian bmsr = my_phy_readreg(sc, PHY_BMSR); 57693746Sjulian if (bootverbose) 577148945Sjhb if_printf(ifp, "PHY status word: %x\n", bmsr); 57893746Sjulian 57993746Sjulian /* fallback */ 58093746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 58193746Sjulian 58293746Sjulian if (bmsr & PHY_BMSR_10BTHALF) { 58393746Sjulian if (bootverbose) 584148945Sjhb if_printf(ifp, "10Mbps half-duplex mode supported\n"); 58593746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX, 58693746Sjulian 0, NULL); 58793746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); 58893746Sjulian } 58993746Sjulian if (bmsr & PHY_BMSR_10BTFULL) { 59093746Sjulian if (bootverbose) 591148945Sjhb if_printf(ifp, "10Mbps full-duplex mode supported\n"); 59293746Sjulian 59393746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX, 59493746Sjulian 0, NULL); 59593746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 59693746Sjulian } 59793746Sjulian if (bmsr & PHY_BMSR_100BTXHALF) { 59893746Sjulian if (bootverbose) 599148945Sjhb if_printf(ifp, "100Mbps half-duplex mode supported\n"); 60093746Sjulian ifp->if_baudrate = 100000000; 60193746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL); 60293746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX, 60393746Sjulian 0, NULL); 60493746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 60593746Sjulian } 60693746Sjulian if (bmsr & PHY_BMSR_100BTXFULL) { 60793746Sjulian if (bootverbose) 608148945Sjhb if_printf(ifp, "100Mbps full-duplex mode supported\n"); 60993746Sjulian ifp->if_baudrate = 100000000; 61093746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX, 61193746Sjulian 0, NULL); 61293746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 61393746Sjulian } 61493746Sjulian /* Some also support 100BaseT4. */ 61593746Sjulian if (bmsr & PHY_BMSR_100BT4) { 61693746Sjulian if (bootverbose) 617148945Sjhb if_printf(ifp, "100baseT4 mode supported\n"); 61893746Sjulian ifp->if_baudrate = 100000000; 61993746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_T4, 0, NULL); 62093746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_T4; 62193746Sjulian#ifdef FORCE_AUTONEG_TFOUR 62293746Sjulian if (bootverbose) 623148945Sjhb if_printf(ifp, "forcing on autoneg support for BT4\n"); 62493746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0 NULL): 62593746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 62693746Sjulian#endif 62793746Sjulian } 62894863Sjulian#if 0 /* this version did not support 1000M, */ 62993746Sjulian if (sc->my_pinfo->my_vid == MarvellPHYID0) { 63093746Sjulian if (bootverbose) 631148945Sjhb if_printf(ifp, "1000Mbps half-duplex mode supported\n"); 63293746Sjulian 63393746Sjulian ifp->if_baudrate = 1000000000; 63495673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T, 0, NULL); 63595673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_HDX, 63693746Sjulian 0, NULL); 63793746Sjulian if (bootverbose) 638148945Sjhb if_printf(ifp, "1000Mbps full-duplex mode supported\n"); 63993746Sjulian ifp->if_baudrate = 1000000000; 64095673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_FDX, 64193746Sjulian 0, NULL); 64295673Sphk sc->ifmedia.ifm_media = IFM_ETHER | IFM_1000_T | IFM_FDX; 64393746Sjulian } 64493746Sjulian#endif 64593746Sjulian if (bmsr & PHY_BMSR_CANAUTONEG) { 64693746Sjulian if (bootverbose) 647148945Sjhb if_printf(ifp, "autoneg supported\n"); 64893746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 64993746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 65093746Sjulian } 65193746Sjulian MY_UNLOCK(sc); 65293746Sjulian return; 65393746Sjulian} 65493746Sjulian 65593746Sjulian/* 65693746Sjulian * Set speed and duplex mode. 65793746Sjulian */ 65893746Sjulianstatic void 65993746Sjulianmy_setmode_mii(struct my_softc * sc, int media) 66093746Sjulian{ 66193746Sjulian u_int16_t bmcr; 66293746Sjulian struct ifnet *ifp; 66393746Sjulian 66493746Sjulian MY_LOCK(sc); 665147256Sbrooks ifp = sc->my_ifp; 66693746Sjulian /* 66793746Sjulian * If an autoneg session is in progress, stop it. 66893746Sjulian */ 66993746Sjulian if (sc->my_autoneg) { 670148945Sjhb if_printf(ifp, "canceling autoneg session\n"); 67193746Sjulian ifp->if_timer = sc->my_autoneg = sc->my_want_auto = 0; 67293746Sjulian bmcr = my_phy_readreg(sc, PHY_BMCR); 67393746Sjulian bmcr &= ~PHY_BMCR_AUTONEGENBL; 67493746Sjulian my_phy_writereg(sc, PHY_BMCR, bmcr); 67593746Sjulian } 676148945Sjhb if_printf(ifp, "selecting MII, "); 67793746Sjulian bmcr = my_phy_readreg(sc, PHY_BMCR); 67893746Sjulian bmcr &= ~(PHY_BMCR_AUTONEGENBL | PHY_BMCR_SPEEDSEL | PHY_BMCR_1000 | 67993746Sjulian PHY_BMCR_DUPLEX | PHY_BMCR_LOOPBK); 68094863Sjulian 68194863Sjulian#if 0 /* this version did not support 1000M, */ 68295673Sphk if (IFM_SUBTYPE(media) == IFM_1000_T) { 68393746Sjulian printf("1000Mbps/T4, half-duplex\n"); 68493746Sjulian bmcr &= ~PHY_BMCR_SPEEDSEL; 68593746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 68693746Sjulian bmcr |= PHY_BMCR_1000; 68793746Sjulian } 68893746Sjulian#endif 68993746Sjulian if (IFM_SUBTYPE(media) == IFM_100_T4) { 69093746Sjulian printf("100Mbps/T4, half-duplex\n"); 69193746Sjulian bmcr |= PHY_BMCR_SPEEDSEL; 69293746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 69393746Sjulian } 69493746Sjulian if (IFM_SUBTYPE(media) == IFM_100_TX) { 69593746Sjulian printf("100Mbps, "); 69693746Sjulian bmcr |= PHY_BMCR_SPEEDSEL; 69793746Sjulian } 69893746Sjulian if (IFM_SUBTYPE(media) == IFM_10_T) { 69993746Sjulian printf("10Mbps, "); 70093746Sjulian bmcr &= ~PHY_BMCR_SPEEDSEL; 70193746Sjulian } 70293746Sjulian if ((media & IFM_GMASK) == IFM_FDX) { 70393746Sjulian printf("full duplex\n"); 70493746Sjulian bmcr |= PHY_BMCR_DUPLEX; 70593746Sjulian } else { 70693746Sjulian printf("half duplex\n"); 70793746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 70893746Sjulian } 70993746Sjulian my_phy_writereg(sc, PHY_BMCR, bmcr); 71093746Sjulian my_setcfg(sc, bmcr); 71193746Sjulian MY_UNLOCK(sc); 71293746Sjulian return; 71393746Sjulian} 71493746Sjulian 71593746Sjulian/* 71693746Sjulian * The Myson manual states that in order to fiddle with the 'full-duplex' and 71793746Sjulian * '100Mbps' bits in the netconfig register, we first have to put the 71893746Sjulian * transmit and/or receive logic in the idle state. 71993746Sjulian */ 72093746Sjulianstatic void 72193746Sjulianmy_setcfg(struct my_softc * sc, int bmcr) 72293746Sjulian{ 72393746Sjulian int i, restart = 0; 72493746Sjulian 72593746Sjulian MY_LOCK(sc); 72693746Sjulian if (CSR_READ_4(sc, MY_TCRRCR) & (MY_TE | MY_RE)) { 72793746Sjulian restart = 1; 72893746Sjulian MY_CLRBIT(sc, MY_TCRRCR, (MY_TE | MY_RE)); 72993746Sjulian for (i = 0; i < MY_TIMEOUT; i++) { 73093746Sjulian DELAY(10); 73193746Sjulian if (!(CSR_READ_4(sc, MY_TCRRCR) & 73293746Sjulian (MY_TXRUN | MY_RXRUN))) 73393746Sjulian break; 73493746Sjulian } 73593746Sjulian if (i == MY_TIMEOUT) 736148945Sjhb if_printf(sc->my_ifp, 737148945Sjhb "failed to force tx and rx to idle \n"); 73893746Sjulian } 73993746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PS1000); 74093746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PS10); 74193746Sjulian if (bmcr & PHY_BMCR_1000) 74293746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PS1000); 74393746Sjulian else if (!(bmcr & PHY_BMCR_SPEEDSEL)) 74493746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PS10); 74593746Sjulian if (bmcr & PHY_BMCR_DUPLEX) 74693746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_FD); 74793746Sjulian else 74893746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_FD); 74993746Sjulian if (restart) 75093746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_TE | MY_RE); 75193746Sjulian MY_UNLOCK(sc); 75293746Sjulian return; 75393746Sjulian} 75493746Sjulian 75593746Sjulianstatic void 75693746Sjulianmy_reset(struct my_softc * sc) 75793746Sjulian{ 75893746Sjulian register int i; 75993746Sjulian 76093746Sjulian MY_LOCK(sc); 76193746Sjulian MY_SETBIT(sc, MY_BCR, MY_SWR); 76293746Sjulian for (i = 0; i < MY_TIMEOUT; i++) { 76393746Sjulian DELAY(10); 76493746Sjulian if (!(CSR_READ_4(sc, MY_BCR) & MY_SWR)) 76593746Sjulian break; 76693746Sjulian } 76793746Sjulian if (i == MY_TIMEOUT) 768148945Sjhb if_printf(sc->my_ifp, "reset never completed!\n"); 76993746Sjulian 77093746Sjulian /* Wait a little while for the chip to get its brains in order. */ 77193746Sjulian DELAY(1000); 77293746Sjulian MY_UNLOCK(sc); 77393746Sjulian return; 77493746Sjulian} 77593746Sjulian 77693746Sjulian/* 77793746Sjulian * Probe for a Myson chip. Check the PCI vendor and device IDs against our 77893746Sjulian * list and return a device name if we find a match. 77993746Sjulian */ 78093746Sjulianstatic int 78193746Sjulianmy_probe(device_t dev) 78293746Sjulian{ 78393746Sjulian struct my_type *t; 78493746Sjulian 78593746Sjulian t = my_devs; 78693746Sjulian while (t->my_name != NULL) { 78793746Sjulian if ((pci_get_vendor(dev) == t->my_vid) && 78893746Sjulian (pci_get_device(dev) == t->my_did)) { 78993746Sjulian device_set_desc(dev, t->my_name); 79093746Sjulian my_info_tmp = t; 791143158Simp return (BUS_PROBE_DEFAULT); 79293746Sjulian } 79393746Sjulian t++; 79493746Sjulian } 79593746Sjulian return (ENXIO); 79693746Sjulian} 79793746Sjulian 79893746Sjulian/* 79993746Sjulian * Attach the interface. Allocate softc structures, do ifmedia setup and 80093746Sjulian * ethernet/BPF attach. 80193746Sjulian */ 80293746Sjulianstatic int 80393746Sjulianmy_attach(device_t dev) 80493746Sjulian{ 80593746Sjulian int s, i; 80693746Sjulian u_char eaddr[ETHER_ADDR_LEN]; 80793746Sjulian u_int32_t command, iobase; 80893746Sjulian struct my_softc *sc; 80993746Sjulian struct ifnet *ifp; 81093746Sjulian int media = IFM_ETHER | IFM_100_TX | IFM_FDX; 81193746Sjulian unsigned int round; 81293746Sjulian caddr_t roundptr; 81393746Sjulian struct my_type *p; 81493746Sjulian u_int16_t phy_vid, phy_did, phy_sts = 0; 815148945Sjhb int rid, error = 0; 81693746Sjulian 81793746Sjulian s = splimp(); 81893746Sjulian sc = device_get_softc(dev); 81995803Sjulian mtx_init(&sc->my_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 82095803Sjulian MTX_DEF | MTX_RECURSE); 82193746Sjulian MY_LOCK(sc); 82293746Sjulian 82393746Sjulian /* 82493746Sjulian * Map control/status registers. 82593746Sjulian */ 82694863Sjulian#if 0 82794863Sjulian command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4); 82894863Sjulian command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); 82994863Sjulian pci_write_config(dev, PCI_COMMAND_STATUS_REG, command & 0x000000ff, 4); 83094863Sjulian command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4); 83194863Sjulian#endif 83293746Sjulian command = pci_read_config(dev, PCIR_COMMAND, 4); 83393746Sjulian command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); 83493746Sjulian pci_write_config(dev, PCIR_COMMAND, command & 0x000000ff, 4); 83593746Sjulian command = pci_read_config(dev, PCIR_COMMAND, 4); 83693746Sjulian 83793746Sjulian if (my_info_tmp->my_did == MTD800ID) { 83893746Sjulian iobase = pci_read_config(dev, MY_PCI_LOIO, 4); 83993746Sjulian if (iobase & 0x300) 84093746Sjulian MY_USEIOSPACE = 0; 84193746Sjulian } 84293746Sjulian if (MY_USEIOSPACE) { 84393746Sjulian if (!(command & PCIM_CMD_PORTEN)) { 844148945Sjhb device_printf(dev, "failed to enable I/O ports!\n"); 84593746Sjulian error = ENXIO; 84693746Sjulian goto fail; 84793746Sjulian } 84893746Sjulian#if 0 84994863Sjulian if (!pci_map_port(config_id, MY_PCI_LOIO, (u_int16_t *) & (sc->my_bhandle))) { 850148945Sjhb device_printf(dev, "couldn't map ports\n"); 85194863Sjulian error = ENXIO; 85294863Sjulian goto fail; 85393746Sjulian } 85493746Sjulian 85593746Sjulian sc->my_btag = I386_BUS_SPACE_IO; 85693746Sjulian#endif 85793746Sjulian } else { 85893746Sjulian if (!(command & PCIM_CMD_MEMEN)) { 859148945Sjhb device_printf(dev, "failed to enable memory mapping!\n"); 86093746Sjulian error = ENXIO; 86193746Sjulian goto fail; 86293746Sjulian } 86393746Sjulian#if 0 86493746Sjulian if (!pci_map_mem(config_id, MY_PCI_LOMEM, &vbase, &pbase)) { 865148945Sjhb device_printf(dev, "couldn't map memory\n"); 86693746Sjulian error = ENXIO; 86793746Sjulian goto fail; 86893746Sjulian } 86994863Sjulian sc->my_btag = I386_BUS_SPACE_MEM; 87094863Sjulian sc->my_bhandle = vbase; 87193746Sjulian#endif 87293746Sjulian } 87393746Sjulian 87493746Sjulian rid = MY_RID; 875127135Snjl sc->my_res = bus_alloc_resource_any(dev, MY_RES, &rid, RF_ACTIVE); 87693746Sjulian 87793746Sjulian if (sc->my_res == NULL) { 878148945Sjhb device_printf(dev, "couldn't map ports/memory\n"); 87993746Sjulian error = ENXIO; 88093746Sjulian goto fail; 88193746Sjulian } 88293746Sjulian sc->my_btag = rman_get_bustag(sc->my_res); 88393746Sjulian sc->my_bhandle = rman_get_bushandle(sc->my_res); 88493746Sjulian 88593746Sjulian rid = 0; 886127135Snjl sc->my_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 887127135Snjl RF_SHAREABLE | RF_ACTIVE); 88893746Sjulian 88993746Sjulian if (sc->my_irq == NULL) { 890148945Sjhb device_printf(dev, "couldn't map interrupt\n"); 89193746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 89293746Sjulian error = ENXIO; 89393746Sjulian goto fail; 89493746Sjulian } 89593746Sjulian error = bus_setup_intr(dev, sc->my_irq, INTR_TYPE_NET, 89693746Sjulian my_intr, sc, &sc->my_intrhand); 89793746Sjulian 89893746Sjulian if (error) { 89993746Sjulian bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 90093746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 901148945Sjhb device_printf(dev, "couldn't set up irq\n"); 90293746Sjulian goto fail; 90393746Sjulian } 90493746Sjulian callout_handle_init(&sc->my_stat_ch); 90593746Sjulian 90693746Sjulian sc->my_info = my_info_tmp; 90793746Sjulian 90893746Sjulian /* Reset the adapter. */ 90993746Sjulian my_reset(sc); 91093746Sjulian 91193746Sjulian /* 91293746Sjulian * Get station address 91393746Sjulian */ 91493746Sjulian for (i = 0; i < ETHER_ADDR_LEN; ++i) 91593746Sjulian eaddr[i] = CSR_READ_1(sc, MY_PAR0 + i); 91693746Sjulian 91793746Sjulian sc->my_ldata_ptr = malloc(sizeof(struct my_list_data) + 8, 91893746Sjulian M_DEVBUF, M_NOWAIT); 91993746Sjulian if (sc->my_ldata_ptr == NULL) { 920148945Sjhb device_printf(dev, "no memory for list buffers!\n"); 92193746Sjulian error = ENXIO; 92293746Sjulian goto fail; 92393746Sjulian } 92493746Sjulian sc->my_ldata = (struct my_list_data *) sc->my_ldata_ptr; 925106588Sjhb round = (uintptr_t)sc->my_ldata_ptr & 0xF; 92693746Sjulian roundptr = sc->my_ldata_ptr; 92793746Sjulian for (i = 0; i < 8; i++) { 92893746Sjulian if (round % 8) { 92993746Sjulian round++; 93093746Sjulian roundptr++; 93193746Sjulian } else 93293746Sjulian break; 93393746Sjulian } 93493746Sjulian sc->my_ldata = (struct my_list_data *) roundptr; 93593746Sjulian bzero(sc->my_ldata, sizeof(struct my_list_data)); 93693746Sjulian 937147256Sbrooks ifp = sc->my_ifp = if_alloc(IFT_ETHER); 938147256Sbrooks if (ifp == NULL) { 939147256Sbrooks device_printf(dev, "can not if_alloc()\n"); 940147256Sbrooks error = ENOSPC; 941147256Sbrooks goto fail; 942147256Sbrooks } 94393746Sjulian ifp->if_softc = sc; 944121816Sbrooks if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 94593746Sjulian ifp->if_mtu = ETHERMTU; 94693746Sjulian ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 94793746Sjulian ifp->if_ioctl = my_ioctl; 94893746Sjulian ifp->if_start = my_start; 94993746Sjulian ifp->if_watchdog = my_watchdog; 95093746Sjulian ifp->if_init = my_init; 95193746Sjulian ifp->if_baudrate = 10000000; 95293746Sjulian ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 95393746Sjulian 95493746Sjulian if (sc->my_info->my_did == MTD803ID) 95593746Sjulian sc->my_pinfo = my_phys; 95693746Sjulian else { 95793746Sjulian if (bootverbose) 958148945Sjhb device_printf(dev, "probing for a PHY\n"); 95993746Sjulian for (i = MY_PHYADDR_MIN; i < MY_PHYADDR_MAX + 1; i++) { 96093746Sjulian if (bootverbose) 961148945Sjhb device_printf(dev, "checking address: %d\n", i); 96293746Sjulian sc->my_phy_addr = i; 96393746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 96493746Sjulian if ((phy_sts != 0) && (phy_sts != 0xffff)) 96593746Sjulian break; 96693746Sjulian else 96793746Sjulian phy_sts = 0; 96893746Sjulian } 96993746Sjulian if (phy_sts) { 97093746Sjulian phy_vid = my_phy_readreg(sc, PHY_VENID); 97193746Sjulian phy_did = my_phy_readreg(sc, PHY_DEVID); 97293746Sjulian if (bootverbose) { 973148945Sjhb device_printf(dev, "found PHY at address %d, ", 974148945Sjhb sc->my_phy_addr); 97593746Sjulian printf("vendor id: %x device id: %x\n", 97693746Sjulian phy_vid, phy_did); 97793746Sjulian } 97893746Sjulian p = my_phys; 97993746Sjulian while (p->my_vid) { 98093746Sjulian if (phy_vid == p->my_vid) { 98193746Sjulian sc->my_pinfo = p; 98293746Sjulian break; 98393746Sjulian } 98493746Sjulian p++; 98593746Sjulian } 98693746Sjulian if (sc->my_pinfo == NULL) 98793746Sjulian sc->my_pinfo = &my_phys[PHY_UNKNOWN]; 98893746Sjulian if (bootverbose) 989148945Sjhb device_printf(dev, "PHY type: %s\n", 990148945Sjhb sc->my_pinfo->my_name); 99193746Sjulian } else { 992148945Sjhb device_printf(dev, "MII without any phy!\n"); 99393746Sjulian error = ENXIO; 99493746Sjulian goto fail; 99593746Sjulian } 99693746Sjulian } 99793746Sjulian 99893746Sjulian /* Do ifmedia setup. */ 99993746Sjulian ifmedia_init(&sc->ifmedia, 0, my_ifmedia_upd, my_ifmedia_sts); 100093746Sjulian my_getmode_mii(sc); 100193746Sjulian my_autoneg_mii(sc, MY_FLAG_FORCEDELAY, 1); 100293746Sjulian media = sc->ifmedia.ifm_media; 100393746Sjulian my_stop(sc); 100493746Sjulian ifmedia_set(&sc->ifmedia, media); 100593746Sjulian 1006106937Ssam ether_ifattach(ifp, eaddr); 100793746Sjulian 100893746Sjulian#if 0 100993746Sjulian at_shutdown(my_shutdown, sc, SHUTDOWN_POST_SYNC); 101093746Sjulian shutdownhook_establish(my_shutdown, sc); 101193746Sjulian#endif 101293746Sjulian 101393746Sjulian MY_UNLOCK(sc); 101493746Sjulian return (0); 101593746Sjulian 101693746Sjulianfail: 101793746Sjulian MY_UNLOCK(sc); 101893746Sjulian mtx_destroy(&sc->my_mtx); 1019147256Sbrooks if (sc->my_ldata_ptr != NULL) 1020147256Sbrooks free(sc->my_ldata_ptr, M_DEVBUF); 102193746Sjulian splx(s); 102293746Sjulian return (error); 102393746Sjulian} 102493746Sjulian 102593746Sjulianstatic int 102693746Sjulianmy_detach(device_t dev) 102793746Sjulian{ 102893746Sjulian struct my_softc *sc; 102993746Sjulian struct ifnet *ifp; 103093746Sjulian int s; 103193746Sjulian 103293746Sjulian s = splimp(); 103393746Sjulian sc = device_get_softc(dev); 103493746Sjulian MY_LOCK(sc); 1035147256Sbrooks ifp = sc->my_ifp; 1036106937Ssam ether_ifdetach(ifp); 1037147256Sbrooks if_free(ifp); 103893746Sjulian my_stop(sc); 103993746Sjulian 104094863Sjulian#if 0 104194863Sjulian bus_generic_detach(dev); 104294863Sjulian device_delete_child(dev, sc->rl_miibus); 104394863Sjulian#endif 104494863Sjulian 104593746Sjulian bus_teardown_intr(dev, sc->my_irq, sc->my_intrhand); 104693746Sjulian bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 104793746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 104894863Sjulian#if 0 104994863Sjulian contigfree(sc->my_cdata.my_rx_buf, MY_RXBUFLEN + 32, M_DEVBUF); 105094863Sjulian#endif 105193746Sjulian MY_UNLOCK(sc); 105293746Sjulian splx(s); 105393746Sjulian mtx_destroy(&sc->my_mtx); 105493746Sjulian return (0); 105593746Sjulian} 105693746Sjulian 105793746Sjulian 105893746Sjulian/* 105993746Sjulian * Initialize the transmit descriptors. 106093746Sjulian */ 106193746Sjulianstatic int 106293746Sjulianmy_list_tx_init(struct my_softc * sc) 106393746Sjulian{ 106493746Sjulian struct my_chain_data *cd; 106593746Sjulian struct my_list_data *ld; 106693746Sjulian int i; 106793746Sjulian 106893746Sjulian MY_LOCK(sc); 106993746Sjulian cd = &sc->my_cdata; 107093746Sjulian ld = sc->my_ldata; 107193746Sjulian for (i = 0; i < MY_TX_LIST_CNT; i++) { 107293746Sjulian cd->my_tx_chain[i].my_ptr = &ld->my_tx_list[i]; 107393746Sjulian if (i == (MY_TX_LIST_CNT - 1)) 107493746Sjulian cd->my_tx_chain[i].my_nextdesc = &cd->my_tx_chain[0]; 107593746Sjulian else 107693746Sjulian cd->my_tx_chain[i].my_nextdesc = 107793746Sjulian &cd->my_tx_chain[i + 1]; 107893746Sjulian } 107993746Sjulian cd->my_tx_free = &cd->my_tx_chain[0]; 108093746Sjulian cd->my_tx_tail = cd->my_tx_head = NULL; 108193746Sjulian MY_UNLOCK(sc); 108293746Sjulian return (0); 108393746Sjulian} 108493746Sjulian 108593746Sjulian/* 108693746Sjulian * Initialize the RX descriptors and allocate mbufs for them. Note that we 108793746Sjulian * arrange the descriptors in a closed ring, so that the last descriptor 108893746Sjulian * points back to the first. 108993746Sjulian */ 109093746Sjulianstatic int 109193746Sjulianmy_list_rx_init(struct my_softc * sc) 109293746Sjulian{ 109393746Sjulian struct my_chain_data *cd; 109493746Sjulian struct my_list_data *ld; 109593746Sjulian int i; 109693746Sjulian 109793746Sjulian MY_LOCK(sc); 109893746Sjulian cd = &sc->my_cdata; 109993746Sjulian ld = sc->my_ldata; 110093746Sjulian for (i = 0; i < MY_RX_LIST_CNT; i++) { 110193746Sjulian cd->my_rx_chain[i].my_ptr = 110293746Sjulian (struct my_desc *) & ld->my_rx_list[i]; 110397641Sjulian if (my_newbuf(sc, &cd->my_rx_chain[i]) == ENOBUFS) { 110497641Sjulian MY_UNLOCK(sc); 110593746Sjulian return (ENOBUFS); 110697641Sjulian } 110793746Sjulian if (i == (MY_RX_LIST_CNT - 1)) { 110893746Sjulian cd->my_rx_chain[i].my_nextdesc = &cd->my_rx_chain[0]; 110993746Sjulian ld->my_rx_list[i].my_next = vtophys(&ld->my_rx_list[0]); 111093746Sjulian } else { 111193746Sjulian cd->my_rx_chain[i].my_nextdesc = 111293746Sjulian &cd->my_rx_chain[i + 1]; 111393746Sjulian ld->my_rx_list[i].my_next = 111493746Sjulian vtophys(&ld->my_rx_list[i + 1]); 111593746Sjulian } 111693746Sjulian } 111793746Sjulian cd->my_rx_head = &cd->my_rx_chain[0]; 111893746Sjulian MY_UNLOCK(sc); 111993746Sjulian return (0); 112093746Sjulian} 112193746Sjulian 112293746Sjulian/* 112393746Sjulian * Initialize an RX descriptor and attach an MBUF cluster. 112493746Sjulian */ 112593746Sjulianstatic int 112693746Sjulianmy_newbuf(struct my_softc * sc, struct my_chain_onefrag * c) 112793746Sjulian{ 112893746Sjulian struct mbuf *m_new = NULL; 112993746Sjulian 113093746Sjulian MY_LOCK(sc); 1131111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 113293746Sjulian if (m_new == NULL) { 1133148945Sjhb if_printf(sc->my_ifp, 1134148945Sjhb "no memory for rx list -- packet dropped!\n"); 113595939Sjulian MY_UNLOCK(sc); 113693746Sjulian return (ENOBUFS); 113793746Sjulian } 1138111119Simp MCLGET(m_new, M_DONTWAIT); 113993746Sjulian if (!(m_new->m_flags & M_EXT)) { 1140148945Sjhb if_printf(sc->my_ifp, 1141148945Sjhb "no memory for rx list -- packet dropped!\n"); 114293746Sjulian m_freem(m_new); 114395939Sjulian MY_UNLOCK(sc); 114493746Sjulian return (ENOBUFS); 114593746Sjulian } 114693746Sjulian c->my_mbuf = m_new; 114793746Sjulian c->my_ptr->my_data = vtophys(mtod(m_new, caddr_t)); 114893746Sjulian c->my_ptr->my_ctl = (MCLBYTES - 1) << MY_RBSShift; 114993746Sjulian c->my_ptr->my_status = MY_OWNByNIC; 115093746Sjulian MY_UNLOCK(sc); 115193746Sjulian return (0); 115293746Sjulian} 115393746Sjulian 115493746Sjulian/* 115593746Sjulian * A frame has been uploaded: pass the resulting mbuf chain up to the higher 115693746Sjulian * level protocols. 115793746Sjulian */ 115893746Sjulianstatic void 115993746Sjulianmy_rxeof(struct my_softc * sc) 116093746Sjulian{ 116193746Sjulian struct ether_header *eh; 116293746Sjulian struct mbuf *m; 116393746Sjulian struct ifnet *ifp; 116493746Sjulian struct my_chain_onefrag *cur_rx; 116593746Sjulian int total_len = 0; 116693746Sjulian u_int32_t rxstat; 116793746Sjulian 116893746Sjulian MY_LOCK(sc); 1169147256Sbrooks ifp = sc->my_ifp; 117093746Sjulian while (!((rxstat = sc->my_cdata.my_rx_head->my_ptr->my_status) 117193746Sjulian & MY_OWNByNIC)) { 117293746Sjulian cur_rx = sc->my_cdata.my_rx_head; 117393746Sjulian sc->my_cdata.my_rx_head = cur_rx->my_nextdesc; 117493746Sjulian 117593746Sjulian if (rxstat & MY_ES) { /* error summary: give up this rx pkt */ 117693746Sjulian ifp->if_ierrors++; 117793746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 117893746Sjulian continue; 117993746Sjulian } 118093746Sjulian /* No errors; receive the packet. */ 118193746Sjulian total_len = (rxstat & MY_FLNGMASK) >> MY_FLNGShift; 118293746Sjulian total_len -= ETHER_CRC_LEN; 118393746Sjulian 118493746Sjulian if (total_len < MINCLSIZE) { 118593746Sjulian m = m_devget(mtod(cur_rx->my_mbuf, char *), 118693746Sjulian total_len, 0, ifp, NULL); 118793746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 118893746Sjulian if (m == NULL) { 118993746Sjulian ifp->if_ierrors++; 119093746Sjulian continue; 119193746Sjulian } 119293746Sjulian } else { 119393746Sjulian m = cur_rx->my_mbuf; 119493746Sjulian /* 119593746Sjulian * Try to conjure up a new mbuf cluster. If that 119693746Sjulian * fails, it means we have an out of memory condition 119793746Sjulian * and should leave the buffer in place and continue. 119893746Sjulian * This will result in a lost packet, but there's 119993746Sjulian * little else we can do in this situation. 120093746Sjulian */ 120193746Sjulian if (my_newbuf(sc, cur_rx) == ENOBUFS) { 120293746Sjulian ifp->if_ierrors++; 120393746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 120493746Sjulian continue; 120593746Sjulian } 120693746Sjulian m->m_pkthdr.rcvif = ifp; 120793746Sjulian m->m_pkthdr.len = m->m_len = total_len; 120893746Sjulian } 120993746Sjulian ifp->if_ipackets++; 121093746Sjulian eh = mtod(m, struct ether_header *); 121193746Sjulian#if NBPFILTER > 0 121293746Sjulian /* 121393746Sjulian * Handle BPF listeners. Let the BPF user see the packet, but 121493746Sjulian * don't pass it up to the ether_input() layer unless it's a 121593746Sjulian * broadcast packet, multicast packet, matches our ethernet 121693746Sjulian * address or the interface is in promiscuous mode. 121793746Sjulian */ 121893746Sjulian if (ifp->if_bpf) { 1219106937Ssam BPF_MTAP(ifp, m); 122093746Sjulian if (ifp->if_flags & IFF_PROMISC && 1221147256Sbrooks (bcmp(eh->ether_dhost, IFP2ENADDR(sc->my_ifp), 122293746Sjulian ETHER_ADDR_LEN) && 122393746Sjulian (eh->ether_dhost[0] & 1) == 0)) { 122493746Sjulian m_freem(m); 122593746Sjulian continue; 122693746Sjulian } 122793746Sjulian } 122893746Sjulian#endif 1229122689Ssam MY_UNLOCK(sc); 1230106937Ssam (*ifp->if_input)(ifp, m); 1231122689Ssam MY_LOCK(sc); 123293746Sjulian } 123393746Sjulian MY_UNLOCK(sc); 123493746Sjulian return; 123593746Sjulian} 123693746Sjulian 123793746Sjulian 123893746Sjulian/* 123993746Sjulian * A frame was downloaded to the chip. It's safe for us to clean up the list 124093746Sjulian * buffers. 124193746Sjulian */ 124293746Sjulianstatic void 124393746Sjulianmy_txeof(struct my_softc * sc) 124493746Sjulian{ 124593746Sjulian struct my_chain *cur_tx; 124693746Sjulian struct ifnet *ifp; 124793746Sjulian 124893746Sjulian MY_LOCK(sc); 1249147256Sbrooks ifp = sc->my_ifp; 125093746Sjulian /* Clear the timeout timer. */ 125193746Sjulian ifp->if_timer = 0; 125295939Sjulian if (sc->my_cdata.my_tx_head == NULL) { 125395939Sjulian MY_UNLOCK(sc); 125493746Sjulian return; 125595939Sjulian } 125693746Sjulian /* 125793746Sjulian * Go through our tx list and free mbufs for those frames that have 125893746Sjulian * been transmitted. 125993746Sjulian */ 126093746Sjulian while (sc->my_cdata.my_tx_head->my_mbuf != NULL) { 126193746Sjulian u_int32_t txstat; 126293746Sjulian 126393746Sjulian cur_tx = sc->my_cdata.my_tx_head; 126493746Sjulian txstat = MY_TXSTATUS(cur_tx); 126593746Sjulian if ((txstat & MY_OWNByNIC) || txstat == MY_UNSENT) 126693746Sjulian break; 126793746Sjulian if (!(CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced)) { 126893746Sjulian if (txstat & MY_TXERR) { 126993746Sjulian ifp->if_oerrors++; 127093746Sjulian if (txstat & MY_EC) /* excessive collision */ 127193746Sjulian ifp->if_collisions++; 127293746Sjulian if (txstat & MY_LC) /* late collision */ 127393746Sjulian ifp->if_collisions++; 127493746Sjulian } 127593746Sjulian ifp->if_collisions += (txstat & MY_NCRMASK) >> 127693746Sjulian MY_NCRShift; 127793746Sjulian } 127893746Sjulian ifp->if_opackets++; 127993746Sjulian m_freem(cur_tx->my_mbuf); 128093746Sjulian cur_tx->my_mbuf = NULL; 128193746Sjulian if (sc->my_cdata.my_tx_head == sc->my_cdata.my_tx_tail) { 128293746Sjulian sc->my_cdata.my_tx_head = NULL; 128393746Sjulian sc->my_cdata.my_tx_tail = NULL; 128493746Sjulian break; 128593746Sjulian } 128693746Sjulian sc->my_cdata.my_tx_head = cur_tx->my_nextdesc; 128793746Sjulian } 128893746Sjulian if (CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced) { 128993746Sjulian ifp->if_collisions += (CSR_READ_4(sc, MY_TSR) & MY_NCRMask); 129093746Sjulian } 129193746Sjulian MY_UNLOCK(sc); 129293746Sjulian return; 129393746Sjulian} 129493746Sjulian 129593746Sjulian/* 129693746Sjulian * TX 'end of channel' interrupt handler. 129793746Sjulian */ 129893746Sjulianstatic void 129993746Sjulianmy_txeoc(struct my_softc * sc) 130093746Sjulian{ 130193746Sjulian struct ifnet *ifp; 130293746Sjulian 130393746Sjulian MY_LOCK(sc); 1304147256Sbrooks ifp = sc->my_ifp; 130593746Sjulian ifp->if_timer = 0; 130693746Sjulian if (sc->my_cdata.my_tx_head == NULL) { 1307148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 130893746Sjulian sc->my_cdata.my_tx_tail = NULL; 130993746Sjulian if (sc->my_want_auto) 131093746Sjulian my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 131193746Sjulian } else { 131293746Sjulian if (MY_TXOWN(sc->my_cdata.my_tx_head) == MY_UNSENT) { 131393746Sjulian MY_TXOWN(sc->my_cdata.my_tx_head) = MY_OWNByNIC; 131493746Sjulian ifp->if_timer = 5; 131593746Sjulian CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); 131693746Sjulian } 131793746Sjulian } 131893746Sjulian MY_UNLOCK(sc); 131993746Sjulian return; 132093746Sjulian} 132193746Sjulian 132293746Sjulianstatic void 132393746Sjulianmy_intr(void *arg) 132493746Sjulian{ 132593746Sjulian struct my_softc *sc; 132693746Sjulian struct ifnet *ifp; 132793746Sjulian u_int32_t status; 132893746Sjulian 132993746Sjulian sc = arg; 133093746Sjulian MY_LOCK(sc); 1331147256Sbrooks ifp = sc->my_ifp; 133293746Sjulian if (!(ifp->if_flags & IFF_UP)) { 133393746Sjulian MY_UNLOCK(sc); 133493746Sjulian return; 133593746Sjulian } 133693746Sjulian /* Disable interrupts. */ 133793746Sjulian CSR_WRITE_4(sc, MY_IMR, 0x00000000); 133893746Sjulian 133993746Sjulian for (;;) { 134093746Sjulian status = CSR_READ_4(sc, MY_ISR); 134193746Sjulian status &= MY_INTRS; 134293746Sjulian if (status) 134393746Sjulian CSR_WRITE_4(sc, MY_ISR, status); 134493746Sjulian else 134593746Sjulian break; 134693746Sjulian 134793746Sjulian if (status & MY_RI) /* receive interrupt */ 134893746Sjulian my_rxeof(sc); 134993746Sjulian 135093746Sjulian if ((status & MY_RBU) || (status & MY_RxErr)) { 135193746Sjulian /* rx buffer unavailable or rx error */ 135293746Sjulian ifp->if_ierrors++; 135393746Sjulian#ifdef foo 135493746Sjulian my_stop(sc); 135593746Sjulian my_reset(sc); 135693746Sjulian my_init(sc); 135793746Sjulian#endif 135893746Sjulian } 135993746Sjulian if (status & MY_TI) /* tx interrupt */ 136093746Sjulian my_txeof(sc); 136193746Sjulian if (status & MY_ETI) /* tx early interrupt */ 136293746Sjulian my_txeof(sc); 136393746Sjulian if (status & MY_TBU) /* tx buffer unavailable */ 136493746Sjulian my_txeoc(sc); 136594863Sjulian 136694863Sjulian#if 0 /* 90/1/18 delete */ 136794863Sjulian if (status & MY_FBE) { 136894863Sjulian my_reset(sc); 136994863Sjulian my_init(sc); 137094863Sjulian } 137194863Sjulian#endif 137294863Sjulian 137393746Sjulian } 137493746Sjulian 137593746Sjulian /* Re-enable interrupts. */ 137693746Sjulian CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 137793746Sjulian if (ifp->if_snd.ifq_head != NULL) 137893746Sjulian my_start(ifp); 137993746Sjulian MY_UNLOCK(sc); 138093746Sjulian return; 138193746Sjulian} 138293746Sjulian 138393746Sjulian/* 138493746Sjulian * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data 138593746Sjulian * pointers to the fragment pointers. 138693746Sjulian */ 138793746Sjulianstatic int 138893746Sjulianmy_encap(struct my_softc * sc, struct my_chain * c, struct mbuf * m_head) 138993746Sjulian{ 139093746Sjulian struct my_desc *f = NULL; 139193746Sjulian int total_len; 139293746Sjulian struct mbuf *m, *m_new = NULL; 139393746Sjulian 139493746Sjulian MY_LOCK(sc); 139593746Sjulian /* calculate the total tx pkt length */ 139693746Sjulian total_len = 0; 139793746Sjulian for (m = m_head; m != NULL; m = m->m_next) 139893746Sjulian total_len += m->m_len; 139993746Sjulian /* 140093746Sjulian * Start packing the mbufs in this chain into the fragment pointers. 140193746Sjulian * Stop when we run out of fragments or hit the end of the mbuf 140293746Sjulian * chain. 140393746Sjulian */ 140493746Sjulian m = m_head; 1405111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 140693746Sjulian if (m_new == NULL) { 1407148945Sjhb if_printf(sc->my_ifp, "no memory for tx list"); 140895939Sjulian MY_UNLOCK(sc); 140993746Sjulian return (1); 141093746Sjulian } 141193746Sjulian if (m_head->m_pkthdr.len > MHLEN) { 1412111119Simp MCLGET(m_new, M_DONTWAIT); 141393746Sjulian if (!(m_new->m_flags & M_EXT)) { 141493746Sjulian m_freem(m_new); 1415148945Sjhb if_printf(sc->my_ifp, "no memory for tx list"); 141695939Sjulian MY_UNLOCK(sc); 141793746Sjulian return (1); 141893746Sjulian } 141993746Sjulian } 142093746Sjulian m_copydata(m_head, 0, m_head->m_pkthdr.len, mtod(m_new, caddr_t)); 142193746Sjulian m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len; 142293746Sjulian m_freem(m_head); 142393746Sjulian m_head = m_new; 142493746Sjulian f = &c->my_ptr->my_frag[0]; 142593746Sjulian f->my_status = 0; 142693746Sjulian f->my_data = vtophys(mtod(m_new, caddr_t)); 142793746Sjulian total_len = m_new->m_len; 142893746Sjulian f->my_ctl = MY_TXFD | MY_TXLD | MY_CRCEnable | MY_PADEnable; 142993746Sjulian f->my_ctl |= total_len << MY_PKTShift; /* pkt size */ 143093746Sjulian f->my_ctl |= total_len; /* buffer size */ 143194904Sjulian /* 89/12/29 add, for mtd891 *//* [ 89? ] */ 143293746Sjulian if (sc->my_info->my_did == MTD891ID) 143393746Sjulian f->my_ctl |= MY_ETIControl | MY_RetryTxLC; 143493746Sjulian c->my_mbuf = m_head; 143593746Sjulian c->my_lastdesc = 0; 143693746Sjulian MY_TXNEXT(c) = vtophys(&c->my_nextdesc->my_ptr->my_frag[0]); 143793746Sjulian MY_UNLOCK(sc); 143893746Sjulian return (0); 143993746Sjulian} 144093746Sjulian 144193746Sjulian/* 144293746Sjulian * Main transmit routine. To avoid having to do mbuf copies, we put pointers 144393746Sjulian * to the mbuf data regions directly in the transmit lists. We also save a 144493746Sjulian * copy of the pointers since the transmit list fragment pointers are 144593746Sjulian * physical addresses. 144693746Sjulian */ 144793746Sjulianstatic void 144893746Sjulianmy_start(struct ifnet * ifp) 144993746Sjulian{ 145093746Sjulian struct my_softc *sc; 145193746Sjulian struct mbuf *m_head = NULL; 145293746Sjulian struct my_chain *cur_tx = NULL, *start_tx; 145393746Sjulian 145493746Sjulian sc = ifp->if_softc; 145593746Sjulian MY_LOCK(sc); 145693746Sjulian if (sc->my_autoneg) { 145793746Sjulian sc->my_tx_pend = 1; 145893746Sjulian MY_UNLOCK(sc); 145993746Sjulian return; 146093746Sjulian } 146193746Sjulian /* 146293746Sjulian * Check for an available queue slot. If there are none, punt. 146393746Sjulian */ 146493746Sjulian if (sc->my_cdata.my_tx_free->my_mbuf != NULL) { 1465148887Srwatson ifp->if_drv_flags |= IFF_DRV_OACTIVE; 146693746Sjulian MY_UNLOCK(sc); 146793746Sjulian return; 146893746Sjulian } 146993746Sjulian start_tx = sc->my_cdata.my_tx_free; 147093746Sjulian while (sc->my_cdata.my_tx_free->my_mbuf == NULL) { 147193746Sjulian IF_DEQUEUE(&ifp->if_snd, m_head); 147293746Sjulian if (m_head == NULL) 147393746Sjulian break; 147493746Sjulian 147593746Sjulian /* Pick a descriptor off the free list. */ 147693746Sjulian cur_tx = sc->my_cdata.my_tx_free; 147793746Sjulian sc->my_cdata.my_tx_free = cur_tx->my_nextdesc; 147893746Sjulian 147993746Sjulian /* Pack the data into the descriptor. */ 148093746Sjulian my_encap(sc, cur_tx, m_head); 148193746Sjulian 148293746Sjulian if (cur_tx != start_tx) 148393746Sjulian MY_TXOWN(cur_tx) = MY_OWNByNIC; 148493746Sjulian#if NBPFILTER > 0 148593746Sjulian /* 148693746Sjulian * If there's a BPF listener, bounce a copy of this frame to 148793746Sjulian * him. 148893746Sjulian */ 1489106937Ssam BPF_MTAP(ifp, cur_tx->my_mbuf); 149093746Sjulian#endif 149193746Sjulian } 149293746Sjulian /* 149393746Sjulian * If there are no packets queued, bail. 149493746Sjulian */ 149593746Sjulian if (cur_tx == NULL) { 149693746Sjulian MY_UNLOCK(sc); 149793746Sjulian return; 149893746Sjulian } 149993746Sjulian /* 150093746Sjulian * Place the request for the upload interrupt in the last descriptor 150193746Sjulian * in the chain. This way, if we're chaining several packets at once, 150293746Sjulian * we'll only get an interupt once for the whole chain rather than 150393746Sjulian * once for each packet. 150493746Sjulian */ 150593746Sjulian MY_TXCTL(cur_tx) |= MY_TXIC; 150693746Sjulian cur_tx->my_ptr->my_frag[0].my_ctl |= MY_TXIC; 150793746Sjulian sc->my_cdata.my_tx_tail = cur_tx; 150893746Sjulian if (sc->my_cdata.my_tx_head == NULL) 150993746Sjulian sc->my_cdata.my_tx_head = start_tx; 151093746Sjulian MY_TXOWN(start_tx) = MY_OWNByNIC; 151193746Sjulian CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); /* tx polling demand */ 151293746Sjulian 151393746Sjulian /* 151493746Sjulian * Set a timeout in case the chip goes out to lunch. 151593746Sjulian */ 151693746Sjulian ifp->if_timer = 5; 151793746Sjulian MY_UNLOCK(sc); 151893746Sjulian return; 151993746Sjulian} 152093746Sjulian 152193746Sjulianstatic void 152293746Sjulianmy_init(void *xsc) 152393746Sjulian{ 152493746Sjulian struct my_softc *sc = xsc; 1525147256Sbrooks struct ifnet *ifp = sc->my_ifp; 152693746Sjulian int s; 152793746Sjulian u_int16_t phy_bmcr = 0; 152893746Sjulian 152993746Sjulian MY_LOCK(sc); 153093746Sjulian if (sc->my_autoneg) { 153193746Sjulian MY_UNLOCK(sc); 153293746Sjulian return; 153393746Sjulian } 153493746Sjulian s = splimp(); 153593746Sjulian if (sc->my_pinfo != NULL) 153693746Sjulian phy_bmcr = my_phy_readreg(sc, PHY_BMCR); 153793746Sjulian /* 153893746Sjulian * Cancel pending I/O and free all RX/TX buffers. 153993746Sjulian */ 154093746Sjulian my_stop(sc); 154193746Sjulian my_reset(sc); 154293746Sjulian 154393746Sjulian /* 154493746Sjulian * Set cache alignment and burst length. 154593746Sjulian */ 154694863Sjulian#if 0 /* 89/9/1 modify, */ 154794863Sjulian CSR_WRITE_4(sc, MY_BCR, MY_RPBLE512); 154894863Sjulian CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF); 154994863Sjulian#endif 155093746Sjulian CSR_WRITE_4(sc, MY_BCR, MY_PBL8); 155193746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF | MY_RBLEN | MY_RPBLE512); 155293746Sjulian /* 155393746Sjulian * 89/12/29 add, for mtd891, 155493746Sjulian */ 155593746Sjulian if (sc->my_info->my_did == MTD891ID) { 155693746Sjulian MY_SETBIT(sc, MY_BCR, MY_PROG); 155793746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_Enhanced); 155893746Sjulian } 155993746Sjulian my_setcfg(sc, phy_bmcr); 156093746Sjulian /* Init circular RX list. */ 156193746Sjulian if (my_list_rx_init(sc) == ENOBUFS) { 1562148945Sjhb if_printf(ifp, "init failed: no memory for rx buffers\n"); 156393746Sjulian my_stop(sc); 156493746Sjulian (void)splx(s); 156593746Sjulian MY_UNLOCK(sc); 156693746Sjulian return; 156793746Sjulian } 156893746Sjulian /* Init TX descriptors. */ 156993746Sjulian my_list_tx_init(sc); 157093746Sjulian 157193746Sjulian /* If we want promiscuous mode, set the allframes bit. */ 157293746Sjulian if (ifp->if_flags & IFF_PROMISC) 157393746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PROM); 157493746Sjulian else 157593746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PROM); 157693746Sjulian 157793746Sjulian /* 157893746Sjulian * Set capture broadcast bit to capture broadcast frames. 157993746Sjulian */ 158093746Sjulian if (ifp->if_flags & IFF_BROADCAST) 158193746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_AB); 158293746Sjulian else 158393746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_AB); 158493746Sjulian 158593746Sjulian /* 158693746Sjulian * Program the multicast filter, if necessary. 158793746Sjulian */ 158893746Sjulian my_setmulti(sc); 158993746Sjulian 159093746Sjulian /* 159193746Sjulian * Load the address of the RX list. 159293746Sjulian */ 159393746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_RE); 159493746Sjulian CSR_WRITE_4(sc, MY_RXLBA, vtophys(&sc->my_ldata->my_rx_list[0])); 159593746Sjulian 159693746Sjulian /* 159793746Sjulian * Enable interrupts. 159893746Sjulian */ 159993746Sjulian CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 160093746Sjulian CSR_WRITE_4(sc, MY_ISR, 0xFFFFFFFF); 160193746Sjulian 160293746Sjulian /* Enable receiver and transmitter. */ 160393746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_RE); 160493746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_TE); 160593746Sjulian CSR_WRITE_4(sc, MY_TXLBA, vtophys(&sc->my_ldata->my_tx_list[0])); 160693746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_TE); 160793746Sjulian 160893746Sjulian /* Restore state of BMCR */ 160993746Sjulian if (sc->my_pinfo != NULL) 161093746Sjulian my_phy_writereg(sc, PHY_BMCR, phy_bmcr); 1611148887Srwatson ifp->if_drv_flags |= IFF_DRV_RUNNING; 1612148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 161393746Sjulian (void)splx(s); 161493746Sjulian MY_UNLOCK(sc); 161593746Sjulian return; 161693746Sjulian} 161793746Sjulian 161893746Sjulian/* 161993746Sjulian * Set media options. 162093746Sjulian */ 162193746Sjulian 162293746Sjulianstatic int 162393746Sjulianmy_ifmedia_upd(struct ifnet * ifp) 162493746Sjulian{ 162593746Sjulian struct my_softc *sc; 162693746Sjulian struct ifmedia *ifm; 162793746Sjulian 162893746Sjulian sc = ifp->if_softc; 162993746Sjulian MY_LOCK(sc); 163093746Sjulian ifm = &sc->ifmedia; 163193746Sjulian if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) { 163293746Sjulian MY_UNLOCK(sc); 163393746Sjulian return (EINVAL); 163493746Sjulian } 163593746Sjulian if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) 163693746Sjulian my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 163793746Sjulian else 163893746Sjulian my_setmode_mii(sc, ifm->ifm_media); 163993746Sjulian MY_UNLOCK(sc); 164093746Sjulian return (0); 164193746Sjulian} 164293746Sjulian 164393746Sjulian/* 164493746Sjulian * Report current media status. 164593746Sjulian */ 164693746Sjulian 164793746Sjulianstatic void 164893746Sjulianmy_ifmedia_sts(struct ifnet * ifp, struct ifmediareq * ifmr) 164993746Sjulian{ 165093746Sjulian struct my_softc *sc; 165193746Sjulian u_int16_t advert = 0, ability = 0; 165293746Sjulian 165393746Sjulian sc = ifp->if_softc; 165493746Sjulian MY_LOCK(sc); 165593746Sjulian ifmr->ifm_active = IFM_ETHER; 165693746Sjulian if (!(my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) { 165794863Sjulian#if 0 /* this version did not support 1000M, */ 165894863Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_1000) 165994863Sjulian ifmr->ifm_active = IFM_ETHER | IFM_1000TX; 166094863Sjulian#endif 166193746Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL) 166293746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX; 166393746Sjulian else 166493746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T; 166593746Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX) 166693746Sjulian ifmr->ifm_active |= IFM_FDX; 166793746Sjulian else 166893746Sjulian ifmr->ifm_active |= IFM_HDX; 166993746Sjulian 167093746Sjulian MY_UNLOCK(sc); 167193746Sjulian return; 167293746Sjulian } 167393746Sjulian ability = my_phy_readreg(sc, PHY_LPAR); 167493746Sjulian advert = my_phy_readreg(sc, PHY_ANAR); 167593746Sjulian 167694863Sjulian#if 0 /* this version did not support 1000M, */ 167793746Sjulian if (sc->my_pinfo->my_vid = MarvellPHYID0) { 167893746Sjulian ability2 = my_phy_readreg(sc, PHY_1000SR); 167993746Sjulian if (ability2 & PHY_1000SR_1000BTXFULL) { 168093746Sjulian advert = 0; 168193746Sjulian ability = 0; 168295673Sphk ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_FDX; 168393746Sjulian } else if (ability & PHY_1000SR_1000BTXHALF) { 168493746Sjulian advert = 0; 168593746Sjulian ability = 0; 168695673Sphk ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_HDX; 168793746Sjulian } 168893746Sjulian } 168993746Sjulian#endif 169093746Sjulian if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) 169193746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_T4; 169293746Sjulian else if (advert & PHY_ANAR_100BTXFULL && ability & PHY_ANAR_100BTXFULL) 169393746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_FDX; 169493746Sjulian else if (advert & PHY_ANAR_100BTXHALF && ability & PHY_ANAR_100BTXHALF) 169593746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_HDX; 169693746Sjulian else if (advert & PHY_ANAR_10BTFULL && ability & PHY_ANAR_10BTFULL) 169793746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_FDX; 169893746Sjulian else if (advert & PHY_ANAR_10BTHALF && ability & PHY_ANAR_10BTHALF) 169993746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_HDX; 170093746Sjulian MY_UNLOCK(sc); 170193746Sjulian return; 170293746Sjulian} 170393746Sjulian 170493746Sjulianstatic int 170593746Sjulianmy_ioctl(struct ifnet * ifp, u_long command, caddr_t data) 170693746Sjulian{ 170793746Sjulian struct my_softc *sc = ifp->if_softc; 170893746Sjulian struct ifreq *ifr = (struct ifreq *) data; 170993746Sjulian int s, error = 0; 171093746Sjulian 171193746Sjulian s = splimp(); 171293746Sjulian MY_LOCK(sc); 171393746Sjulian switch (command) { 171493746Sjulian case SIOCSIFFLAGS: 171593746Sjulian if (ifp->if_flags & IFF_UP) 171693746Sjulian my_init(sc); 1717148887Srwatson else if (ifp->if_drv_flags & IFF_DRV_RUNNING) 171893746Sjulian my_stop(sc); 171993746Sjulian error = 0; 172093746Sjulian break; 172193746Sjulian case SIOCADDMULTI: 172293746Sjulian case SIOCDELMULTI: 172393746Sjulian my_setmulti(sc); 172493746Sjulian error = 0; 172593746Sjulian break; 172693746Sjulian case SIOCGIFMEDIA: 172793746Sjulian case SIOCSIFMEDIA: 172893746Sjulian error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); 172993746Sjulian break; 173093746Sjulian default: 1731106937Ssam error = ether_ioctl(ifp, command, data); 173293746Sjulian break; 173393746Sjulian } 173493746Sjulian MY_UNLOCK(sc); 173593746Sjulian (void)splx(s); 173693746Sjulian return (error); 173793746Sjulian} 173893746Sjulian 173993746Sjulianstatic void 174093746Sjulianmy_watchdog(struct ifnet * ifp) 174193746Sjulian{ 174293746Sjulian struct my_softc *sc; 174393746Sjulian 174493746Sjulian sc = ifp->if_softc; 174593746Sjulian MY_LOCK(sc); 174693746Sjulian if (sc->my_autoneg) { 174793746Sjulian my_autoneg_mii(sc, MY_FLAG_DELAYTIMEO, 1); 174893746Sjulian MY_UNLOCK(sc); 174993746Sjulian return; 175093746Sjulian } 175193746Sjulian ifp->if_oerrors++; 1752148945Sjhb if_printf(ifp, "watchdog timeout\n"); 175393746Sjulian if (!(my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT)) 1754148945Sjhb if_printf(ifp, "no carrier - transceiver cable problem?\n"); 175593746Sjulian my_stop(sc); 175693746Sjulian my_reset(sc); 175793746Sjulian my_init(sc); 175893746Sjulian if (ifp->if_snd.ifq_head != NULL) 175993746Sjulian my_start(ifp); 176093746Sjulian MY_LOCK(sc); 176193746Sjulian return; 176293746Sjulian} 176393746Sjulian 176493746Sjulian 176593746Sjulian/* 176693746Sjulian * Stop the adapter and free any mbufs allocated to the RX and TX lists. 176793746Sjulian */ 176893746Sjulianstatic void 176993746Sjulianmy_stop(struct my_softc * sc) 177093746Sjulian{ 177193746Sjulian register int i; 177293746Sjulian struct ifnet *ifp; 177393746Sjulian 177493746Sjulian MY_LOCK(sc); 1775147256Sbrooks ifp = sc->my_ifp; 177693746Sjulian ifp->if_timer = 0; 177793746Sjulian 177893746Sjulian MY_CLRBIT(sc, MY_TCRRCR, (MY_RE | MY_TE)); 177993746Sjulian CSR_WRITE_4(sc, MY_IMR, 0x00000000); 178093746Sjulian CSR_WRITE_4(sc, MY_TXLBA, 0x00000000); 178193746Sjulian CSR_WRITE_4(sc, MY_RXLBA, 0x00000000); 178293746Sjulian 178393746Sjulian /* 178493746Sjulian * Free data in the RX lists. 178593746Sjulian */ 178693746Sjulian for (i = 0; i < MY_RX_LIST_CNT; i++) { 178793746Sjulian if (sc->my_cdata.my_rx_chain[i].my_mbuf != NULL) { 178893746Sjulian m_freem(sc->my_cdata.my_rx_chain[i].my_mbuf); 178993746Sjulian sc->my_cdata.my_rx_chain[i].my_mbuf = NULL; 179093746Sjulian } 179193746Sjulian } 179293746Sjulian bzero((char *)&sc->my_ldata->my_rx_list, 179393746Sjulian sizeof(sc->my_ldata->my_rx_list)); 179493746Sjulian /* 179593746Sjulian * Free the TX list buffers. 179693746Sjulian */ 179793746Sjulian for (i = 0; i < MY_TX_LIST_CNT; i++) { 179893746Sjulian if (sc->my_cdata.my_tx_chain[i].my_mbuf != NULL) { 179993746Sjulian m_freem(sc->my_cdata.my_tx_chain[i].my_mbuf); 180093746Sjulian sc->my_cdata.my_tx_chain[i].my_mbuf = NULL; 180193746Sjulian } 180293746Sjulian } 180393746Sjulian bzero((char *)&sc->my_ldata->my_tx_list, 180493746Sjulian sizeof(sc->my_ldata->my_tx_list)); 1805148887Srwatson ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 180693746Sjulian MY_UNLOCK(sc); 180793746Sjulian return; 180893746Sjulian} 180993746Sjulian 181093746Sjulian/* 181193746Sjulian * Stop all chip I/O so that the kernel's probe routines don't get confused 181293746Sjulian * by errant DMAs when rebooting. 181393746Sjulian */ 181493746Sjulianstatic void 181593746Sjulianmy_shutdown(device_t dev) 181693746Sjulian{ 181793746Sjulian struct my_softc *sc; 181893746Sjulian 181993746Sjulian sc = device_get_softc(dev); 182093746Sjulian my_stop(sc); 182193746Sjulian return; 182293746Sjulian} 1823