FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/i82365_pci.c

     /*      $NetBSD: i82365_pci.c,v 1.17 2003/01/31 00:07:42 thorpej Exp $  */
     
     /*
      * Copyright (c) 1997 Marc Horowitz.  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, 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Marc Horowitz.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
     */
    
    /*
     * XXX this driver frontend is *very* i386 dependent and should be relocated
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: i82365_pci.c,v 1.17 2003/01/31 00:07:42 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    
    #include <dev/ic/i82365reg.h>
    #include <dev/ic/i82365var.h>
    
    #include <dev/pci/pcivar.h>
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcidevs.h>
    #include <dev/pci/i82365_pcivar.h>
    
    #include <dev/isa/isavar.h>
    #include <dev/isa/i82365_isavar.h>
    
    /*
     * PCI constants.
     * XXX These should be in a common file!
     */
    #define PCI_CBIO                0x10    /* Configuration Base IO Address */
    
    int     pcic_pci_match __P((struct device *, struct cfdata *, void *));
    void    pcic_pci_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(pcic_pci, sizeof(struct pcic_pci_softc),
        pcic_pci_match, pcic_pci_attach, NULL, NULL);
    
    static struct pcmcia_chip_functions pcic_pci_functions = {
            pcic_chip_mem_alloc,
            pcic_chip_mem_free,
            pcic_chip_mem_map,
            pcic_chip_mem_unmap,
    
            pcic_chip_io_alloc,
            pcic_chip_io_free,
            pcic_chip_io_map,
            pcic_chip_io_unmap,
    
            /* XXX */
            pcic_isa_chip_intr_establish,
            pcic_isa_chip_intr_disestablish,
    
            pcic_chip_socket_enable,
            pcic_chip_socket_disable,
    };
    
    static void pcic_pci_callback(struct device *);
    
    int
    pcic_pci_match(parent, match, aux)
            struct device *parent;
            struct cfdata  *match;
            void *aux;
    {
            struct pci_attach_args *pa = (struct pci_attach_args *) aux;
    
            switch (PCI_VENDOR(pa->pa_id)) {
            case PCI_VENDOR_CIRRUS:
                    switch(PCI_PRODUCT(pa->pa_id)) {
                    case PCI_PRODUCT_CIRRUS_CL_PD6729:
                            break;
                   default:
                           return (0);
                   }
                   break;
           default:
                   return (0);
           }
           return (1);
   }
   
   void pcic_isa_config_interrupts __P((struct device *));
   
   void
   pcic_pci_attach(parent, self, aux)
           struct device *parent, *self;
           void *aux;
   {
           struct pcic_softc *sc = (void *) self;
           struct pcic_pci_softc *psc = (void *) self;
           struct pci_attach_args *pa = aux;
           pci_chipset_tag_t pc = pa->pa_pc;
           bus_space_tag_t memt = pa->pa_memt;
           bus_space_handle_t memh;
           char *model;
   
           aprint_naive(": PCMCIA controller\n");
   
           if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
               &sc->iot, &sc->ioh, NULL, NULL)) {
                   aprint_error(": can't map i/o space\n");
                   return;
           }
   
           /*
            * XXX need some memory for mapping pcmcia cards into. Ideally, this
            * would be completely dynamic.  Practically this doesn't work,
            * because the extent mapper doesn't know about all the devices all
            * the time.  With ISA we could finesse the issue by specifying the
            * memory region in the config line.  We can't do that here, so we
            * cheat for now. Jason Thorpe, you are my Savior, come up with a fix
            * :-)
            */
   
           /* Map mem space. */
           if (bus_space_map(memt, 0xd0000, 0x4000, 0, &memh))
                   panic("pcic_pci_attach: can't map mem space");
   
           sc->membase = 0xd0000;
           sc->subregionmask = (1 << (0x4000 / PCIC_MEM_PAGESIZE)) - 1;
   
           /* same deal for io allocation */
   
           sc->iobase = 0x400;
           sc->iosize = 0xbff;
   
           /* end XXX */
   
           sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions;
   
           sc->memt = memt;
           sc->memh = memh;
   
           switch (PCI_PRODUCT(pa->pa_id)) {
           case PCI_PRODUCT_CIRRUS_CL_PD6729:
                   model = "Cirrus Logic PD6729 PCMCIA controller";
                   break;
           default:
                   model = "Model unknown";
                   break;
           }
   
           aprint_normal(": %s\n", model);
   
           /* Enable the card. */
           pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
               pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
               PCI_COMMAND_MASTER_ENABLE);
   
           pcic_attach(sc);
   
           /*
            * Check to see if we're using PCI or ISA interrupts. I don't
            * know of any i386 systems that use the 6729 in PCI interrupt
            * mode, but maybe when the PCMCIA code runs on other platforms
            * we'll need to fix this.
            */
           pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX,
                      PCIC_CIRRUS_EXT_CONTROL_1);
           if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) &
               PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) {
                   aprint_error("%s: PCI interrupts not supported\n",
                          sc->dev.dv_xname);
                   return;
           }
   
           psc->intr_est = pcic_pci_machdep_intr_est(pc);
           sc->irq = -1;
   
   #if 0
           /* Map and establish the interrupt. */
           sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr);
           if (sc->ih == NULL) {
                   aprint_error("%s: couldn't map interrupt\n", sc->dev.dv_xname);
                   return;
           }
   #endif
   
           /*
            * Defer configuration of children until ISA has had its chance
            * to use up whatever IO space and IRQs it wants. XXX This will
            * only work if ISA is attached to a pcib, AND the PCI probe finds
            * and defers the ISA attachment before this one.
            */
           config_defer(self, pcic_pci_callback);
           config_interrupts(self, pcic_isa_config_interrupts);
   }
   
   static void
   pcic_pci_callback(self)
           struct device *self;
   {
           struct pcic_softc *sc = (void *) self;
   
           pcic_attach_sockets(sc);
   }

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