Line data    Source code

       1             : /*      $OpenBSD: ccp_pci.c,v 1.1 2018/04/20 04:37:21 dlg Exp $ */
       2             : 
       3             : /*
       4             :  * Copyright (c) 2018 David Gwynne <dlg@openbsd.org>
       5             :  *
       6             :  * Permission to use, copy, modify, and distribute this software for any
       7             :  * purpose with or without fee is hereby granted, provided that the above
       8             :  * copyright notice and this permission notice appear in all copies.
       9             :  *
      10             :  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      11             :  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
      12             :  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
      13             :  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
      14             :  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
      15             :  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
      16             :  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
      17             :  */
      18             : 
      19             : #include <sys/param.h>
      20             : #include <sys/systm.h>
      21             : #include <sys/kernel.h>
      22             : #include <sys/rwlock.h>
      23             : #include <sys/device.h>
      24             : #include <sys/timeout.h>
      25             : #include <sys/queue.h>
      26             : 
      27             : #include <machine/bus.h>
      28             : 
      29             : #include <dev/pci/pcidevs.h>
      30             : #include <dev/pci/pcivar.h>
      31             : 
      32             : #include <dev/ic/ccpvar.h>
      33             : 
      34             : #define CCP_PCI_BAR     0x18
      35             : 
      36             : int     ccp_pci_match(struct device *, void *, void *);
      37             : void    ccp_pci_attach(struct device *, struct device *, void *);
      38             : 
      39             : struct cfattach ccp_pci_ca = {
      40             :         sizeof(struct ccp_softc),
      41             :         ccp_pci_match,
      42             :         ccp_pci_attach,
      43             : };
      44             : 
      45             : static const struct pci_matchid ccp_pci_devices[] = {
      46             :         { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_CCPV3 },
      47             :         { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_CCPV5A },
      48             :         { PCI_VENDOR_AMD,       PCI_PRODUCT_AMD_CCPV5B },
      49             : };
      50             : 
      51             : int
      52           0 : ccp_pci_match(struct device *parent, void *match, void *aux)
      53             : {
      54           0 :         return (pci_matchbyid(aux, ccp_pci_devices, nitems(ccp_pci_devices)));
      55             : }
      56             : 
      57             : void
      58           0 : ccp_pci_attach(struct device *parent, struct device *self, void *aux)
      59             : {
      60           0 :         struct ccp_softc *sc = (struct ccp_softc *)self;
      61           0 :         struct pci_attach_args *pa = aux;
      62             :         pcireg_t memtype;
      63             : 
      64           0 :         memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, CCP_PCI_BAR);
      65           0 :         if (PCI_MAPREG_TYPE(memtype) != PCI_MAPREG_TYPE_MEM) {
      66           0 :                 printf(": wrong memory type\n");
      67           0 :                 return;
      68             :         }
      69             : 
      70           0 :         if (pci_mapreg_map(pa, CCP_PCI_BAR, memtype, 0,
      71           0 :             &sc->sc_iot, &sc->sc_ioh, NULL, NULL, 0) != 0) {
      72           0 :                 printf(": cannot map registers\n");
      73           0 :                 return;
      74             :         }
      75             : 
      76           0 :         ccp_attach(sc);
      77           0 : }