root/dev/pci/if_en_pci.c

DEFINITIONS

1. adp_busreset
2. en_pci_match
3. en_pci_attach

    1 /*      $OpenBSD: if_en_pci.c,v 1.11 2005/09/11 18:17:08 mickey Exp $   */
    3 /*
    4  *
    5  * Copyright (c) 1996 Charles D. Cranor and Washington University.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. All advertising materials mentioning features or use of this software
   17  *    must display the following acknowledgement:
   18  *      This product includes software developed by Charles D. Cranor and
   19  *      Washington University.
   20  * 4. The name of the author may not be used to endorse or promote products
   21  *    derived from this software without specific prior written permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   33  */
   35 /*
   36  *
   37  * i f _ e n _ p c i . c  
   38  *
   39  * author: Chuck Cranor <chuck@ccrc.wustl.edu>
   40  * started: spring, 1996.
   41  *
   42  * PCI glue for the eni155p card.
   43  */
   45 #include <sys/param.h>
   46 #include <sys/systm.h>
   47 #include <sys/device.h>
   48 #include <sys/mbuf.h>
   49 #include <sys/socket.h>
   50 #include <sys/socketvar.h>
   52 #include <net/if.h>
   54 #include <dev/pci/pcivar.h>
   55 #include <dev/pci/pcireg.h>
   56 #include <dev/pci/pcidevs.h>
   58 #include <dev/ic/midwayreg.h>
   59 #include <dev/ic/midwayvar.h>
   62 /*
   63  * local structures
   64  */
   66 struct en_pci_softc {
   67   /* bus independent stuff */
   68   struct en_softc esc;          /* includes "device" structure */
   70   /* PCI bus glue */
   71   void *sc_ih;                  /* interrupt handle */
pci_chipset_tag_t en_pc;      /* for PCI calls */
   74 };
   76 /*
   77  * local defines (PCI specific stuff)
   78  */
   80 /* 
   81  * address of config base memory address register in PCI config space
   82  * (this is card specific)
   83  */
   85 #define PCI_CBMA        0x10
   87 /*
   88  * tonga (pci bridge).   ENI cards only!
   89  */
   91 #define EN_TONGA        0x60            /* PCI config addr of tonga reg */
   93 #define TONGA_SWAP_DMA  0x80            /* endian swap control */
   94 #define TONGA_SWAP_BYTE 0x40
   95 #define TONGA_SWAP_WORD 0x20
   97 /*
   98  * adaptec pci bridge.   ADP cards only!
   99  */
  101 #define ADP_PCIREG      0x050040        /* PCI control register */
  103 #define ADP_PCIREG_RESET        0x1     /* reset card */
  104 #define ADP_PCIREG_IENABLE      0x2     /* interrupt enable */
  105 #define ADP_PCIREG_SWAP_WORD    0x4     /* swap byte on slave access */
  106 #define ADP_PCIREG_SWAP_DMA     0x8     /* swap bytes on DMA */
  108 /*
  109  * prototypes
  110  */
  112 static  int en_pci_match(struct device *, void *, void *);
  113 static  void en_pci_attach(struct device *, struct device *, void *);
  115 /*
  116  * PCI autoconfig attachments
  117  */
  119 struct cfattach en_pci_ca = {
  120     sizeof(struct en_pci_softc), en_pci_match, en_pci_attach,
  121 };
  123 #if !defined(MIDWAY_ENIONLY)
  125 static void adp_busreset(void *);
  127 /*
  128  * bus specific reset function [ADP only!]
  129  */
  131 static void adp_busreset(v)
  133 void *v;
  135 {
  136   struct en_softc *sc = (struct en_softc *) v;
u_int32_t dummy;
bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, ADP_PCIREG_RESET);
DELAY(1000);  /* let it reset */
dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, 
  143                 (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA|ADP_PCIREG_IENABLE));
dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
  145   if ((dummy & (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA)) !=
  146                 (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA))
printf("adp_busreset: Adaptec ATM did NOT reset!\n");
  149 }
  150 #endif
  152 /***********************************************************************/
  154 /*
  155  * autoconfig stuff
  156  */
  158 static int en_pci_match(parent, match, aux)
  160 struct device *parent;
  161 void *match;
  162 void *aux;
  164 {
  165   struct pci_attach_args *pa = (struct pci_attach_args *) aux;
  167 #if !defined(MIDWAY_ADPONLY)
  168   if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_EFFICIENTNETS && 
  169       (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PF ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PA))
  171     return 1;
  172 #endif
  174 #if !defined(MIDWAY_ENIONLY)
  175   if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADP && 
  176       (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADP_AIC5900 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADP_AIC5905))
  178     return 1;
  179 #endif
  181   return 0;
  182 }
  185 static void en_pci_attach(parent, self, aux)
  187 struct device *parent, *self;
  188 void *aux;
  190 {
  191   struct en_softc *sc = (void *)self;
  192   struct en_pci_softc *scp = (void *)self;
  193   struct pci_attach_args *pa = aux;
pci_intr_handle_t ih;
  195   const char *intrstr;
  196   int retval;
sc->is_adaptec = (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADP) ? 1 : 0;
scp->en_pc = pa->pa_pc;
  201   /*
  202    * interrupt map
  203    */
  205   if (pci_intr_map(pa, &ih)) {
printf(": couldn't map interrupt\n");
  207     return;
  208   }
intrstr = pci_intr_string(scp->en_pc, ih);
scp->sc_ih = pci_intr_establish(scp->en_pc, ih, IPL_NET, en_intr, sc,
sc->sc_dev.dv_xname);
  212   if (scp->sc_ih == NULL) {
printf(": couldn't establish interrupt");
  214     if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
  217     return;
  218   }
sc->ipl = 1; /* XXX */
  221   /*
  222    * memory map
  223    */
retval = pci_mapreg_map(pa, PCI_CBMA, PCI_MAPREG_TYPE_MEM, 0,
  226     &sc->en_memt, &sc->en_base, NULL, &sc->en_obmemsz, 0);
  228   if (retval) {
printf(": couldn't map memory\n");
  230     return;
  231   }
printf(": %s\n", intrstr);
  235   /*
  236    * set up pci bridge
  237    */
  239 #if !defined(MIDWAY_ENIONLY)
  240   if (sc->is_adaptec) {
sc->en_busreset = adp_busreset;
adp_busreset(sc);
  243   }
  244 #endif
  246 #if !defined(MIDWAY_ADPONLY)
  247   if (!sc->is_adaptec) {
sc->en_busreset = NULL;
pci_conf_write(scp->en_pc, pa->pa_tag, EN_TONGA, 
  250                   (TONGA_SWAP_DMA|TONGA_SWAP_WORD));
  251   }
  252 #endif
  254   /*
  255    * done PCI specific stuff
  256    */
en_attach(sc);
  260 }