FreeBSD/Linux Kernel Cross Reference
sys/dev/netif/ed/if_ed_pccard.c

     /*
      * Copyright (c) 1995, David Greenman
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice unmodified, this list of conditions, and the following
     *    disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: src/sys/dev/ed/if_ed_pccard.c,v 1.55 2003/12/31 04:25:00 kato Exp $
     */
    
    #include "opt_ed.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/socket.h>
    #include <sys/kernel.h>
    #include <sys/conf.h>
    #include <sys/uio.h>
    #include <sys/module.h>
    #include <sys/interrupt.h>
    #include <sys/bus.h>
    #include <sys/rman.h>
    
    #include <net/ethernet.h>
    #include <net/if.h>
    #include <net/if_arp.h>
    #include <net/if_mib.h>
    #include <net/if_media.h>
    #include <net/ifq_var.h>
    
    #include "if_edreg.h"
    #include "if_edvar.h"
    #include <bus/pccard/pccard_cis.h>
    #include <bus/pccard/pccardvar.h>
    #ifndef ED_NO_MIIBUS
    #include <dev/netif/mii_layer/mii.h>
    #include <dev/netif/mii_layer/miivar.h>
    #endif
    
    #include "card_if.h"
    #include "pccarddevs.h"
    #ifndef ED_NO_MIIBUS
    /* "device miibus" required.  See GENERIC if you get errors here. */
    #include "miibus_if.h"
    
    MODULE_DEPEND(ed, miibus, 1, 1, 1);
    #endif
    MODULE_DEPEND(ed, pccard, 1, 1, 1);
    
    /*
     *      PC-Card (PCMCIA) specific code.
     */
    static int      ed_pccard_match(device_t);
    static int      ed_pccard_probe(device_t);
    static int      ed_pccard_attach(device_t);
    static int      ed_pccard_detach(device_t);
    
    static int      ed_pccard_Linksys(device_t dev);
    static int      ed_pccard_ax88190(device_t dev);
    
    static void     ax88190_geteprom(struct ed_softc *);
    static int      ed_pccard_memwrite(device_t dev, off_t offset, u_char byte);
    #ifndef ED_NO_MIIBUS
    static void     ed_pccard_dlink_mii_reset(struct ed_softc *sc);
    static u_int    ed_pccard_dlink_mii_readbits(struct ed_softc *sc, int nbits);
    static void     ed_pccard_dlink_mii_writebits(struct ed_softc *sc, u_int val,
        int nbits);
    #endif
    
    /*
     *      ed_pccard_detach - unload the driver and clear the table.
     *      XXX TODO:
     *      This is usually called when the card is ejected, but
     *      can be caused by a modunload of a controller driver.
     *      The idea is to reset the driver's view of the device
     *      and ensure that any driver entry points such as
     *      read and write do not hang.
     */
    static int
    ed_pccard_detach(device_t dev)
   {
           struct ed_softc *sc = device_get_softc(dev);
           struct ifnet *ifp = &sc->arpcom.ac_if;
   
           lwkt_serialize_enter(ifp->if_serializer);
   
           if (sc->gone) {
                   device_printf(dev, "already unloaded\n");
                   lwkt_serialize_exit(ifp->if_serializer);
                   return (0);
           }
           ed_stop(sc);
           ifp->if_flags &= ~IFF_RUNNING;
           sc->gone = 1;
           bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
   
           lwkt_serialize_exit(ifp->if_serializer);
   
           ether_ifdetach(ifp);
           ed_release_resources(dev);
           return (0);
   }
   
   static const struct ed_product {
           struct pccard_product   prod;
           int flags;
   #define NE2000DVF_DL10019       0x0001          /* chip is D-Link DL10019 */
   #define NE2000DVF_AX88190       0x0002          /* chip is ASIX AX88190 */
   } ed_pccard_products[] = {
           { PCMCIA_CARD(ACCTON, EN2212, 0), 0},
           { PCMCIA_CARD(ALLIEDTELESIS, LA_PCM, 0), 0},
           { PCMCIA_CARD(AMBICOM, AMB8002T, 0), 0},
           { PCMCIA_CARD(BILLIONTON, LNT10TN, 0), 0},
           { PCMCIA_CARD(BILLIONTON, CFLT10N, 0), 0},
           { PCMCIA_CARD(BUFFALO, LPC3_CLT,  0), 0},
           { PCMCIA_CARD(BUFFALO, LPC3_CLX,  0), NE2000DVF_AX88190},
           { PCMCIA_CARD(BUFFALO, LPC_CF_CLT,  0), 0},
           { PCMCIA_CARD(CNET, NE2000, 0), 0},
           { PCMCIA_CARD(COMPEX, LINKPORT_ENET_B, 0), 0},
           { PCMCIA_CARD(COREGA, ETHER_II_PCC_T, 0), 0},
           { PCMCIA_CARD(COREGA, ETHER_II_PCC_TD, 0), 0},
           { PCMCIA_CARD(COREGA, ETHER_PCC_T, 0), 0},
           { PCMCIA_CARD(COREGA, ETHER_PCC_TD, 0), 0},
           { PCMCIA_CARD(COREGA, FAST_ETHER_PCC_TX, 0), NE2000DVF_DL10019 },
           { PCMCIA_CARD(COREGA, FETHER_PCC_TXD, 0), NE2000DVF_AX88190 },
           { PCMCIA_CARD(COREGA, FETHER_PCC_TXF, 0), NE2000DVF_DL10019 },
           { PCMCIA_CARD(DAYNA, COMMUNICARD_E_1, 0), 0},
           { PCMCIA_CARD(DAYNA, COMMUNICARD_E_2, 0), 0},
           { PCMCIA_CARD(DLINK, DE650, 0), 0},
           { PCMCIA_CARD(DLINK, DE660, 0), 0 },
           { PCMCIA_CARD(DLINK, DE660PLUS, 0), 0},
           { PCMCIA_CARD(DLINK, DFE670TXD, 0), NE2000DVF_DL10019},
           { PCMCIA_CARD(DYNALINK, L10C, 0), 0},
           { PCMCIA_CARD(EDIMAX, EP4000A, 0), 0},
           { PCMCIA_CARD(EPSON, EEN10B, 0), 0},
           { PCMCIA_CARD(EXP, THINLANCOMBO, 0), 0},
           { PCMCIA_CARD(IBM, INFOMOVER, 0), 0},
           { PCMCIA_CARD(IODATA3, PCLAT, 0), 0},
           { PCMCIA_CARD(KINGSTON, KNE2, 0), 0},
           { PCMCIA_CARD(LANTECH, FASTNETTX, 0),NE2000DVF_AX88190 },
           { PCMCIA_CARD(LINKSYS, COMBO_ECARD, 0), NE2000DVF_DL10019 },
           { PCMCIA_CARD(LINKSYS, ECARD_1, 0), 0},
           { PCMCIA_CARD(LINKSYS, ECARD_2, 0), 0},
           { PCMCIA_CARD(LINKSYS, ETHERFAST, 0), NE2000DVF_DL10019 },
           { PCMCIA_CARD(LINKSYS, TRUST_COMBO_ECARD, 0), 0},
           { PCMCIA_CARD(MACNICA, ME1_JEIDA, 0), 0},
           { PCMCIA_CARD(MELCO, LPC3_CLX,  0), NE2000DVF_AX88190},
           { PCMCIA_CARD(MELCO, LPC3_TX, 0), NE2000DVF_AX88190 },
           { PCMCIA_CARD(NDC, ND5100_E, 0), 0},
           { PCMCIA_CARD(NETGEAR, FA410TXC, 0), NE2000DVF_DL10019},
           { PCMCIA_CARD(NETGEAR, FA411, 0), NE2000DVF_AX88190},
           { PCMCIA_CARD(NEXTCOM, NEXTHAWK, 0), 0},
           { PCMCIA_CARD(OEM2, ETHERNET, 0), 0},
           { PCMCIA_CARD(PLANET, SMARTCOM2000, 0), 0 },
           { PCMCIA_CARD(PREMAX, PE200, 0), 0},
           { PCMCIA_CARD(RACORE, ETHERNET, 0), 0},
           { PCMCIA_CARD(RPTI, EP400, 0), 0},
           { PCMCIA_CARD(RPTI, EP401, 0), 0},
           { PCMCIA_CARD(SMC, EZCARD, 0), 0},
           { PCMCIA_CARD(SOCKET, EA_ETHER, 0), 0},
           { PCMCIA_CARD(SOCKET, LP_ETHER, 0), 0},
           { PCMCIA_CARD(SOCKET, LP_ETHER_CF, 0), 0},
           { PCMCIA_CARD(SOCKET, LP_ETH_10_100_CF, 0), NE2000DVF_DL10019},
           { PCMCIA_CARD(SVEC, COMBOCARD, 0), 0},
           { PCMCIA_CARD(SVEC, LANCARD, 0), 0},
           { PCMCIA_CARD(TAMARACK, ETHERNET, 0), 0},
           { PCMCIA_CARD(TDK, LAK_CD031, 0), 0},
           { PCMCIA_CARD(TELECOMDEVICE, TCD_HPC100, 0), NE2000DVF_AX88190 },
           { PCMCIA_CARD(XIRCOM, CFE_10, 0), 0},
           { PCMCIA_CARD(ZONET, ZEN, 0), 0},
           { { NULL } }
   };
   
   static int
   ed_pccard_match(device_t dev)
   {
           const struct ed_product *pp;
   
           if ((pp = (const struct ed_product *) pccard_product_lookup(dev, 
               (const struct pccard_product *) ed_pccard_products,
               sizeof(ed_pccard_products[0]), NULL)) != NULL) {
                   if (pp->prod.pp_name != NULL)
                           device_set_desc(dev, pp->prod.pp_name);
                   if (pp->flags & NE2000DVF_DL10019)
                           device_set_flags(dev, ED_FLAGS_LINKSYS);
                   else if (pp->flags & NE2000DVF_AX88190)
                           device_set_flags(dev, ED_FLAGS_AX88190);
                   return (0);
           }
           return (EIO);
   }
   
   /* 
    * Probe framework for pccards.  Replicates the standard framework,
    * minus the pccard driver registration and ignores the ether address
    * supplied (from the CIS), relying on the probe to find it instead.
    */
   static int
   ed_pccard_probe(device_t dev)
   {
           int     error;
           int     flags = device_get_flags(dev);
   
           if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_AX88190) {
                   error = ed_pccard_ax88190(dev);
                   goto end2;
           }
   
           error = ed_probe_Novell(dev, 0, flags);
           if (error == 0)
                   goto end;
           ed_release_resources(dev);
   
           error = ed_probe_WD80x3(dev, 0, flags);
           if (error == 0)
                   goto end;
           ed_release_resources(dev);
           goto end2;
   
   end:
           if (ED_FLAGS_GETTYPE(flags) & ED_FLAGS_LINKSYS)
                   ed_pccard_Linksys(dev);
   end2:
           if (error == 0)
                   error = ed_alloc_irq(dev, 0, 0);
   
           ed_release_resources(dev);
           return (error);
   }
   
   static int
   ed_pccard_attach(device_t dev)
   {
           struct ed_softc *sc = device_get_softc(dev);
           struct ifnet *ifp = &sc->arpcom.ac_if;
           int error;
           int i;
           uint8_t sum;
           const uint8_t *ether_addr;
           
           if (sc->port_used > 0)
                   ed_alloc_port(dev, sc->port_rid, sc->port_used);
           if (sc->mem_used)
                   ed_alloc_memory(dev, sc->mem_rid, sc->mem_used);
           ed_alloc_irq(dev, sc->irq_rid, 0);
                   
           if (sc->vendor != ED_VENDOR_LINKSYS) {
                   ether_addr = pccard_get_ether(dev);
                   for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
                           sum |= ether_addr[i];
                   if (sum)
                           bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
           }
   
           error = ed_attach(dev);
   #ifndef ED_NO_MIIBUS
           if (error == 0 && sc->vendor == ED_VENDOR_LINKSYS) {
                   /* Probe for an MII bus, but ignore errors. */
                   ed_pccard_dlink_mii_reset(sc);
                   sc->mii_readbits = ed_pccard_dlink_mii_readbits;
                   sc->mii_writebits = ed_pccard_dlink_mii_writebits;
                   mii_phy_probe(dev, &sc->miibus, ed_ifmedia_upd,
                       ed_ifmedia_sts);
           }
   #endif
   
           ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->irq_res));
   
           error = bus_setup_intr(dev, sc->irq_res, INTR_MPSAFE,
                                  edintr, sc, &sc->irq_handle,
                                  ifp->if_serializer);
           if (error) {
                   kprintf("setup intr failed %d \n", error);
                   ed_release_resources(dev);
                   return (error);
           }
   
           return (error);
   }
   
   static void
   ax88190_geteprom(struct ed_softc *sc)
   {
           int prom[16],i;
           u_char tmp;
           struct {
                   u_char offset, value;
           } pg_seq[] = {
                   {ED_P0_CR, ED_CR_RD2|ED_CR_STP},        /* Select Page0 */
                   {ED_P0_DCR, 0x01},
                   {ED_P0_RBCR0, 0x00},                    /* Clear the count regs. */
                   {ED_P0_RBCR1, 0x00},
                   {ED_P0_IMR, 0x00},                      /* Mask completion irq. */
                   {ED_P0_ISR, 0xff},
                   {ED_P0_RCR, ED_RCR_MON | ED_RCR_INTT},  /* Set To Monitor */
                   {ED_P0_TCR, ED_TCR_LB0},                /* loopback mode. */
                   {ED_P0_RBCR0, 32},
                   {ED_P0_RBCR1, 0x00},
                   {ED_P0_RSAR0, 0x00},
                   {ED_P0_RSAR1, 0x04},
                   {ED_P0_CR ,ED_CR_RD0 | ED_CR_STA},
           };
   
           /* Reset Card */
           tmp = ed_asic_inb(sc, ED_NOVELL_RESET);
           ed_asic_outb(sc, ED_NOVELL_RESET, tmp);
           DELAY(5000);
           ed_asic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
           DELAY(5000);
   
           /* Card Settings */
           for (i = 0; i < NELEM(pg_seq); i++)
                   ed_nic_outb(sc, pg_seq[i].offset, pg_seq[i].value);
   
           /* Get Data */
           for (i = 0; i < 16; i++)
                   prom[i] = ed_asic_inb(sc, 0);
           sc->arpcom.ac_enaddr[0] = prom[0] & 0xff;
           sc->arpcom.ac_enaddr[1] = prom[0] >> 8;
           sc->arpcom.ac_enaddr[2] = prom[1] & 0xff;
           sc->arpcom.ac_enaddr[3] = prom[1] >> 8;
           sc->arpcom.ac_enaddr[4] = prom[2] & 0xff;
           sc->arpcom.ac_enaddr[5] = prom[2] >> 8;
   }
   
   static int
   ed_pccard_memwrite(device_t dev, off_t offset, u_char byte)
   {
           int cis_rid;
           struct resource *cis;
           
           cis_rid = 0;
           cis = bus_alloc_resource(dev, SYS_RES_MEMORY, &cis_rid, 0, ~0,
                                    4 << 10, RF_ACTIVE | RF_SHAREABLE);
           if (cis == NULL)
                   return (ENXIO);
           CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
                              cis_rid, PCCARD_A_MEM_ATTR);
   
           bus_space_write_1(rman_get_bustag(cis), rman_get_bushandle(cis),
                             offset, byte);
   
           bus_deactivate_resource(dev, SYS_RES_MEMORY, cis_rid, cis);
           bus_release_resource(dev, SYS_RES_MEMORY, cis_rid, cis);
   
           return (0);
   }
   
   /*
    * Probe the Ethernet MAC addrees for PCMCIA Linksys EtherFast 10/100 
    * and compatible cards (DL10019C Ethernet controller).
    *
    * Note: The PAO patches try to use more memory for the card, but that
    * seems to fail for my card.  A future optimization would add this back
    * conditionally.
    */
   static int
   ed_pccard_Linksys(device_t dev)
   {
           struct ed_softc *sc = device_get_softc(dev);
           u_char sum;
           int i;
   
           /*
            * Linksys registers(offset from ASIC base)
            *
            * 0x04-0x09 : Physical Address Register 0-5 (PAR0-PAR5)
            * 0x0A      : Card ID Register (CIR)
            * 0x0B      : Check Sum Register (SR)
            */
           for (sum = 0, i = 0x04; i < 0x0c; i++)
                   sum += ed_asic_inb(sc, i);
           if (sum != 0xff)
                   return (0);             /* invalid DL10019C */
           for (i = 0; i < ETHER_ADDR_LEN; i++) {
                   sc->arpcom.ac_enaddr[i] = ed_asic_inb(sc, 0x04 + i);
           }
   
           ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS);
           sc->isa16bit = 1;
           sc->vendor = ED_VENDOR_LINKSYS;
           sc->type = ED_TYPE_NE2000;
           sc->type_str = "Linksys";
   
           return (1);
   }
   
   /*
    * Special setup for AX88190
    */
   static int
   ed_pccard_ax88190(device_t dev)
   {
           int     error;
           int     flags = device_get_flags(dev);
           int     iobase;
           struct  ed_softc *sc = device_get_softc(dev);
   
           /* Allocate the port resource during setup. */
           error = ed_alloc_port(dev, 0, ED_NOVELL_IO_PORTS);
           if (error)
                   return (error);
   
           sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
           sc->nic_offset  = ED_NOVELL_NIC_OFFSET;
           sc->chip_type = ED_CHIP_TYPE_AX88190;
   
           /*
            * Set Attribute Memory IOBASE Register.  Is this a deficiency in
            * the PC Card layer, or an ax88190 specific issue? xxx
            */
           iobase = rman_get_start(sc->port_res);
           ed_pccard_memwrite(dev, ED_AX88190_IOBASE0, iobase & 0xff);
           ed_pccard_memwrite(dev, ED_AX88190_IOBASE1, (iobase >> 8) & 0xff);
           ax88190_geteprom(sc);
           ed_release_resources(dev);
           error = ed_probe_Novell(dev, 0, flags);
           if (error == 0) {
                   sc->vendor = ED_VENDOR_PCCARD;
                   sc->type = ED_TYPE_NE2000;
                   sc->type_str = "AX88190";
           }
           return (error);
   }
   
   #ifndef ED_NO_MIIBUS
   /* MII bit-twiddling routines for cards using Dlink chipset */
   #define DLINK_MIISET(sc, x) ed_asic_outb(sc, ED_DLINK_MIIBUS, \
       ed_asic_inb(sc, ED_DLINK_MIIBUS) | (x))
   #define DLINK_MIICLR(sc, x) ed_asic_outb(sc, ED_DLINK_MIIBUS, \
       ed_asic_inb(sc, ED_DLINK_MIIBUS) & ~(x))
   
   static void
   ed_pccard_dlink_mii_reset(struct ed_softc *sc)
   {
           ed_asic_outb(sc, ED_DLINK_MIIBUS, 0);
           DELAY(10);
           DLINK_MIISET(sc, ED_DLINK_MII_RESET2);
           DELAY(10);
           DLINK_MIISET(sc, ED_DLINK_MII_RESET1);
           DELAY(10);
           DLINK_MIICLR(sc, ED_DLINK_MII_RESET1);
           DELAY(10);
           DLINK_MIICLR(sc, ED_DLINK_MII_RESET2);
           DELAY(10);
   }
   
   static void
   ed_pccard_dlink_mii_writebits(struct ed_softc *sc, u_int val, int nbits)
   {
           int i;
   
           DLINK_MIISET(sc, ED_DLINK_MII_DIROUT);
   
           for (i = nbits - 1; i >= 0; i--) {
                   if ((val >> i) & 1)
                           DLINK_MIISET(sc, ED_DLINK_MII_DATAOUT);
                   else
                           DLINK_MIICLR(sc, ED_DLINK_MII_DATAOUT);
                   DELAY(10);
                   DLINK_MIISET(sc, ED_DLINK_MII_CLK);
                   DELAY(10);
                   DLINK_MIICLR(sc, ED_DLINK_MII_CLK);
                   DELAY(10);
           }
   }
   
   static u_int
   ed_pccard_dlink_mii_readbits(struct ed_softc *sc, int nbits)
   {
           int i;
           u_int val = 0;
   
           DLINK_MIICLR(sc, ED_DLINK_MII_DIROUT);
   
           for (i = nbits - 1; i >= 0; i--) {
                   DLINK_MIISET(sc, ED_DLINK_MII_CLK);
                   DELAY(10);
                   val <<= 1;
                   if (ed_asic_inb(sc, ED_DLINK_MIIBUS) & ED_DLINK_MII_DATATIN)
                           val++;
                   DLINK_MIICLR(sc, ED_DLINK_MII_CLK);
                   DELAY(10);
           }
   
           return val;
   }
   #endif
   
   static device_method_t ed_pccard_methods[] = {
           /* Device interface */
           DEVMETHOD(device_probe,         pccard_compat_probe),
           DEVMETHOD(device_attach,        pccard_compat_attach),
           DEVMETHOD(device_detach,        ed_pccard_detach),
   
   #ifndef ED_NO_MIIBUS
           /* Bus interface */
           DEVMETHOD(bus_child_detached,   ed_child_detached),
   
           /* MII interface */
           DEVMETHOD(miibus_readreg,       ed_miibus_readreg),
           DEVMETHOD(miibus_writereg,      ed_miibus_writereg),
   #endif
   
           /* Card interface */
           DEVMETHOD(card_compat_match,    ed_pccard_match),
           DEVMETHOD(card_compat_probe,    ed_pccard_probe),
           DEVMETHOD(card_compat_attach,   ed_pccard_attach),
           DEVMETHOD_END
   };
   
   static driver_t ed_pccard_driver = {
           "ed",
           ed_pccard_methods,
           sizeof(struct ed_softc)
   };
   
   DRIVER_MODULE(if_ed, pccard, ed_pccard_driver, ed_devclass, NULL, NULL);
   #ifndef ED_NO_MIIBUS
   MODULE_DEPEND(if_ed, miibus, 1, 1, 1);
   DRIVER_MODULE(miibus, ed, miibus_driver, miibus_devclass, NULL, NULL);
   #endif

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