FreeBSD/Linux Kernel Cross Reference
sys/dev/puc/puc_pci.c

     /*      $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $     */
     
     /*-
      * Copyright (c) 2002 JF Hay.  All rights reserved.
      * Copyright (c) 2000 M. Warner Losh.  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 ``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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: src/sys/dev/puc/puc_pci.c,v 1.10.2.1 2005/01/30 00:59:59 imp Exp $");
    
    /*-
     * Copyright (c) 1996, 1998, 1999
     *      Christopher G. Demetriou.  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 Christopher G. Demetriou
     *      for the NetBSD Project.
     * 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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: src/sys/dev/puc/puc_pci.c,v 1.10.2.1 2005/01/30 00:59:59 imp Exp $");
    
    #include "opt_puc.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/bus.h>
    #include <sys/conf.h>
    #include <sys/malloc.h>
    
    #include <machine/bus.h>
    #include <machine/resource.h>
    #include <sys/rman.h>
    
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcivar.h>
    
    #define PUC_ENTRAILS    1
    #include <dev/puc/pucvar.h>
    
    extern const struct puc_device_description puc_devices[];
    
    int puc_config_win877(struct puc_softc *);
    
    static const struct puc_device_description *
    puc_find_description(uint32_t vend, uint32_t prod, uint32_t svend, 
        uint32_t sprod)
    {
            int i;
    
    #define checkreg(val, index) \
        (((val) & puc_devices[i].rmask[(index)]) == puc_devices[i].rval[(index)])
    
            for (i = 0; puc_devices[i].name != NULL; i++) {
                   if (checkreg(vend, PUC_REG_VEND) &&
                       checkreg(prod, PUC_REG_PROD) &&
                       checkreg(svend, PUC_REG_SVEND) &&
                       checkreg(sprod, PUC_REG_SPROD))
                           return (&puc_devices[i]);
           }
   
   #undef checkreg
   
           return (NULL);
   }
   
   static int
   puc_pci_probe(device_t dev)
   {
           uint32_t v1, v2, d1, d2;
           const struct puc_device_description *desc;
   
           if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
                   return (ENXIO);
   
           v1 = pci_read_config(dev, PCIR_VENDOR, 2);
           d1 = pci_read_config(dev, PCIR_DEVICE, 2);
           v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
           d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
   
           desc = puc_find_description(v1, d1, v2, d2);
           if (desc == NULL)
                   return (ENXIO);
           device_set_desc(dev, desc->name);
           return (0);
   }
   
   static int
   puc_pci_attach(device_t dev)
   {
           uint32_t v1, v2, d1, d2;
   
           v1 = pci_read_config(dev, PCIR_VENDOR, 2);
           d1 = pci_read_config(dev, PCIR_DEVICE, 2);
           v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
           d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
           return (puc_attach(dev, puc_find_description(v1, d1, v2, d2)));
   }
   
   static device_method_t puc_pci_methods[] = {
       /* Device interface */
       DEVMETHOD(device_probe,             puc_pci_probe),
       DEVMETHOD(device_attach,            puc_pci_attach),
   
       DEVMETHOD(bus_alloc_resource,       puc_alloc_resource),
       DEVMETHOD(bus_release_resource,     puc_release_resource),
       DEVMETHOD(bus_get_resource,         puc_get_resource),
       DEVMETHOD(bus_read_ivar,            puc_read_ivar),
       DEVMETHOD(bus_setup_intr,           puc_setup_intr),
       DEVMETHOD(bus_teardown_intr,        puc_teardown_intr),
       DEVMETHOD(bus_print_child,          bus_generic_print_child),
       DEVMETHOD(bus_driver_added,         bus_generic_driver_added),
       { 0, 0 }
   };
   
   static driver_t puc_pci_driver = {
           "puc",
           puc_pci_methods,
           sizeof(struct puc_softc),
   };
   
   DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);
   DRIVER_MODULE(puc, cardbus, puc_pci_driver, puc_devclass, 0, 0);
   
   
   #define rdspio(indx)            (bus_space_write_1(bst, bsh, efir, indx), \
                                   bus_space_read_1(bst, bsh, efdr))
   #define wrspio(indx,data)       (bus_space_write_1(bst, bsh, efir, indx), \
                                   bus_space_write_1(bst, bsh, efdr, data))
   
   #ifdef PUC_DEBUG
   static void
   puc_print_win877(bus_space_tag_t bst, bus_space_handle_t bsh, u_int efir,
           u_int efdr)
   {
           u_char cr00, cr01, cr04, cr09, cr0d, cr14, cr15, cr16, cr17;
           u_char cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32;
   
           cr00 = rdspio(0x00);
           cr01 = rdspio(0x01);
           cr04 = rdspio(0x04);
           cr09 = rdspio(0x09);
           cr0d = rdspio(0x0d);
           cr14 = rdspio(0x14);
           cr15 = rdspio(0x15);
           cr16 = rdspio(0x16);
           cr17 = rdspio(0x17);
           cr18 = rdspio(0x18);
           cr19 = rdspio(0x19);
           cr24 = rdspio(0x24);
           cr25 = rdspio(0x25);
           cr28 = rdspio(0x28);
           cr2c = rdspio(0x2c);
           cr31 = rdspio(0x31);
           cr32 = rdspio(0x32);
           printf("877T: cr00 %x, cr01 %x, cr04 %x, cr09 %x, cr0d %x, cr14 %x, "
               "cr15 %x, cr16 %x, cr17 %x, cr18 %x, cr19 %x, cr24 %x, cr25 %x, "
               "cr28 %x, cr2c %x, cr31 %x, cr32 %x\n", cr00, cr01, cr04, cr09,
               cr0d, cr14, cr15, cr16, cr17,
               cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32);
   }
   #endif
   
   int
   puc_config_win877(struct puc_softc *sc)
   {
           u_char val;
           u_int efir, efdr;
           bus_space_tag_t bst;
           bus_space_handle_t bsh;
           struct resource *res;
   
           res = sc->sc_bar_mappings[0].res;
   
           bst = rman_get_bustag(res);
           bsh = rman_get_bushandle(res);
   
           /* configure the first W83877TF */
           bus_space_write_1(bst, bsh, 0x250, 0x89);
           efir = 0x251;
           efdr = 0x252;
           val = rdspio(0x09) & 0x0f;
           if (val != 0x0c) {
                   printf("conf_win877: Oops not a W83877TF\n");
                   return (ENXIO);
           }
   
   #ifdef PUC_DEBUG
           printf("before: ");
           puc_print_win877(bst, bsh, efir, efdr);
   #endif
   
           val = rdspio(0x16);
           val |= 0x04;
           wrspio(0x16, val);
           val &= ~0x04;
           wrspio(0x16, val);
   
           wrspio(0x24, 0x2e8 >> 2);
           wrspio(0x25, 0x2f8 >> 2);
           wrspio(0x17, 0x03);
           wrspio(0x28, 0x43);
   
   #ifdef PUC_DEBUG
           printf("after: ");
           puc_print_win877(bst, bsh, efir, efdr);
   #endif
   
           bus_space_write_1(bst, bsh, 0x250, 0xaa);
   
           /* configure the second W83877TF */
           bus_space_write_1(bst, bsh, 0x3f0, 0x87);
           bus_space_write_1(bst, bsh, 0x3f0, 0x87);
           efir = 0x3f0;
           efdr = 0x3f1;
           val = rdspio(0x09) & 0x0f;
           if (val != 0x0c) {
                   printf("conf_win877: Oops not a W83877TF\n");
                   return(ENXIO);
           }
   
   #ifdef PUC_DEBUG
           printf("before: ");
           puc_print_win877(bst, bsh, efir, efdr);
   #endif
   
           val = rdspio(0x16);
           val |= 0x04;
           wrspio(0x16, val);
           val &= ~0x04;
           wrspio(0x16, val);
   
           wrspio(0x24, 0x3e8 >> 2);
           wrspio(0x25, 0x3f8 >> 2);
           wrspio(0x17, 0x03);
           wrspio(0x28, 0x43);
   
   #ifdef PUC_DEBUG
           printf("after: ");
           puc_print_win877(bst, bsh, efir, efdr);
   #endif
   
           bus_space_write_1(bst, bsh, 0x3f0, 0xaa);
           return (0);
   }
   
   #undef rdspio
   #undef wrspio
   

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