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nca_pci.c revision 1.1.4.2 
      1 /*	$NetBSD: nca_pci.c,v 1.1.4.2 2010/05/30 05:17:36 rmind Exp $  */
      2 
      3 /*
      4  * Copyright (c) 2010 Jonathan A. Kollasch
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
     20  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     21  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     22  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     23  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     25  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     26  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * PCI attachment for 5380-compatible Domex 536 SCSI controller,
     31  * found on Domex DMX-3191D.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 __KERNEL_RCSID(0, "$NetBSD: nca_pci.c,v 1.1.4.2 2010/05/30 05:17:36 rmind Exp $");
     36 
     37 #include <sys/param.h>
     38 #include <sys/systm.h>
     39 #include <sys/kernel.h>
     40 #include <sys/device.h>
     41 #include <sys/buf.h>
     42 
     43 #include <sys/bus.h>
     44 
     45 #include <dev/pci/pcireg.h>
     46 #include <dev/pci/pcivar.h>
     47 #include <dev/pci/pcidevs.h>
     48 
     49 #include <dev/scsipi/scsi_all.h>
     50 #include <dev/scsipi/scsipi_all.h>
     51 #include <dev/scsipi/scsiconf.h>
     52 
     53 #include <dev/ic/ncr5380reg.h>
     54 #include <dev/ic/ncr5380var.h>
     55 
     56 static int nca_pci_match(device_t, cfdata_t, void *);
     57 static void nca_pci_attach(device_t, device_t, void *);
     58 
     59 CFATTACH_DECL_NEW(nca_pci, sizeof(struct ncr5380_softc),
     60     nca_pci_match, nca_pci_attach, NULL, NULL);
     61 
     62 static int
     63 nca_pci_match(device_t parent, cfdata_t match, void *aux)
     64 {
     65 	struct pci_attach_args *pa = aux;
     66 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DOMEX &&
     67 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DOMEX_PCISCSI)
     68 		return 1;
     69 	return 0;
     70 }
     71 
     72 static void
     73 nca_pci_attach(device_t parent, device_t self, void *aux)
     74 {
     75 	struct ncr5380_softc *sc = device_private(self);
     76 	struct pci_attach_args *pa = aux;
     77 	char devinfo[128];
     78 
     79 	sc->sc_dev = self;
     80 
     81 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
     82 	aprint_naive(": SCSI controller\n");
     83 	aprint_normal(": %s (rev 0x%02x)\n", devinfo,
     84 		      PCI_REVISION(pa->pa_class));
     85 
     86 	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0,
     87             &sc->sc_regt, &sc->sc_regh, NULL, NULL)) {
     88                 aprint_error_dev(self, "could not map IO space\n");
     89                 return;
     90         }
     91 
     92 	/* The Domex 536 seems to be driven by polling,
     93 	 * don't bother mapping an interrupt handler.
     94 	 */
     95 
     96 	sc->sc_rev = NCR_VARIANT_CXD1180;
     97 	sc->sci_r0 = 0;
     98 	sc->sci_r1 = 1;
     99 	sc->sci_r2 = 2;
    100 	sc->sci_r3 = 3;
    101 	sc->sci_r4 = 4;
    102 	sc->sci_r5 = 5;
    103 	sc->sci_r6 = 6;
    104 	sc->sci_r7 = 7;
    105 
    106 	sc->sc_pio_out = ncr5380_pio_out;
    107 	sc->sc_pio_in =  ncr5380_pio_in;
    108 	sc->sc_dma_alloc = NULL;
    109 	sc->sc_dma_free  = NULL;
    110 	sc->sc_dma_setup = NULL;
    111 	sc->sc_dma_start = NULL;
    112 	sc->sc_dma_poll  = NULL;
    113 	sc->sc_dma_eop   = NULL;
    114 	sc->sc_dma_stop  = NULL;
    115 	sc->sc_intr_on   = NULL;
    116 	sc->sc_intr_off  = NULL;
    117 
    118 	sc->sc_flags |= NCR5380_FORCE_POLLING;
    119 
    120 	sc->sc_min_dma_len = 0;
    121 
    122 	sc->sc_adapter.adapt_request = ncr5380_scsipi_request;
    123 	sc->sc_adapter.adapt_minphys = minphys;
    124 
    125 	sc->sc_channel.chan_id = 7;
    126 
    127 	ncr5380_attach(sc);
    128 }
    129