305 lines
8.1 KiB
C
305 lines
8.1 KiB
C
/* $NetBSD: cac_pci.c,v 1.4 2000/06/13 13:36:52 ad Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* PCI front-end for cac(4) driver.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: cac_pci.c,v 1.4 2000/06/13 13:36:52 ad Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/queue.h>
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#include <sys/proc.h>
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#include <sys/buf.h>
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#include <machine/endian.h>
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#include <machine/bus.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/pcivar.h>
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#include <dev/ic/cacreg.h>
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#include <dev/ic/cacvar.h>
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#define PCI_CBIO 0x10 /* Configuration base I/O address */
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#define PCI_CBMA 0x14 /* Configuration base memory address */
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static int cac_pci_match __P((struct device *, struct cfdata *, void *));
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static void cac_pci_attach __P((struct device *, struct device *, void *));
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static void cac_pci_l0_submit __P((struct cac_softc *, paddr_t));
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static paddr_t cac_pci_l0_completed __P((struct cac_softc *));
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static int cac_pci_l0_intr_pending __P((struct cac_softc *));
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static void cac_pci_l0_intr_enable __P((struct cac_softc *, int));
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static int cac_pci_l0_fifo_full __P((struct cac_softc *));
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static void cac_pci_l1_submit __P((struct cac_softc *, paddr_t));
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static paddr_t cac_pci_l1_completed __P((struct cac_softc *));
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static int cac_pci_l1_intr_pending __P((struct cac_softc *));
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static void cac_pci_l1_intr_enable __P((struct cac_softc *, int));
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static int cac_pci_l1_fifo_full __P((struct cac_softc *));
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struct cfattach cac_pci_ca = {
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sizeof(struct cac_softc), cac_pci_match, cac_pci_attach
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};
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static struct cac_linkage cac_pci_l0 = {
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cac_pci_l0_submit,
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cac_pci_l0_completed,
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cac_pci_l0_intr_pending,
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cac_pci_l0_intr_enable,
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cac_pci_l0_fifo_full
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};
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static struct cac_linkage cac_pci_l1 = {
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cac_pci_l1_submit,
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cac_pci_l1_completed,
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cac_pci_l1_intr_pending,
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cac_pci_l1_intr_enable,
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cac_pci_l1_fifo_full
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};
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/* This block of code inspired by Compaq's Linux driver. */
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struct cac_type {
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int ct_subsysid; /* PCI subsystem ID */
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int ct_mmreg; /* Memory mapped registers */
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struct cac_linkage *ct_linkage; /* Command interface */
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char *ct_typestr; /* Textual description */
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} static cac_type[] = {
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#ifdef notdef
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{ 0x0040110e, 0, &cac_pci_lX, "IDA" },
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{ 0x0140110e, 0, &cac_pci_lX, "IDA 2" },
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{ 0x1040110e, 0, &cac_pci_lX, "IAES" },
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{ 0x2040110e, 0, &cac_pci_lX, "SMART" },
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#endif
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{ 0x3040110e, 0, &cac_pci_l0, "SMART-2/E" },
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{ 0x40300e11, 1, &cac_pci_l0, "SMART-2/P" },
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{ 0x40310e11, 1, &cac_pci_l0, "SMART-2SL" },
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{ 0x40320e11, 1, &cac_pci_l0, "Smart Array 3200" },
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{ 0x40330e11, 1, &cac_pci_l0, "Smart Array 3100ES" },
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{ 0x40340e11, 1, &cac_pci_l0, "Smart Array 221" },
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{ 0x40400e11, 1, &cac_pci_l1, "Integrated Array" },
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{ 0x40500e11, 1, &cac_pci_l1, "Smart Array 4200" },
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{ 0x40510e11, 1, &cac_pci_l1, "Smart Array 4200ES" },
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{ -1, 1, &cac_pci_l0, "array controller (unknown type)" },
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};
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static int
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cac_pci_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct pci_attach_args *pa;
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pa = (struct pci_attach_args *)aux;
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_COMPAQ &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPAQ_SMART2P)
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return (1);
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_CPQ42XX)
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return (1);
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return (0);
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}
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static void
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cac_pci_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct pci_attach_args *pa;
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struct cac_type *ct;
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struct cac_softc *sc;
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pci_chipset_tag_t pc;
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pci_intr_handle_t ih;
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const char *intrstr;
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pcireg_t csr, subsysid;
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int mmreg;
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sc = (struct cac_softc *)self;
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pa = (struct pci_attach_args *)aux;
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pc = pa->pa_pc;
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mmreg = 0;
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printf(": ");
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subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
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for (ct = cac_type; ct->ct_subsysid != -1; ct++)
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if (subsysid == ct->ct_subsysid)
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break;
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if ((mmreg = ct->ct_mmreg) != 0)
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if (pci_mapreg_map(pa, PCI_CBMA, PCI_MAPREG_TYPE_MEM, 0,
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&sc->sc_iot, &sc->sc_ioh, NULL, NULL))
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mmreg = 0;
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if (mmreg == 0)
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if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
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&sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
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printf("can't map i/o space\n");
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return;
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}
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sc->sc_dmat = pa->pa_dmat;
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/* Enable the device. */
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csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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csr | PCI_COMMAND_MASTER_ENABLE);
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/* Map and establish the interrupt. */
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if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
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pa->pa_intrline, &ih)) {
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printf("can't map interrupt\n");
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return;
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}
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intrstr = pci_intr_string(pc, ih);
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sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, sc);
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if (sc->sc_ih == NULL) {
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printf("can't establish interrupt");
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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/* Now attach to the bus-independent code */
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sc->sc_typestr = ct->ct_typestr;
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sc->sc_cl = ct->ct_linkage;
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cac_init(sc, intrstr);
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}
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static void
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cac_pci_l0_submit(sc, addr)
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struct cac_softc *sc;
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paddr_t addr;
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{
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cac_outl(sc, CAC_REG_CMD_FIFO, addr);
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}
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static paddr_t
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cac_pci_l0_completed(sc)
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struct cac_softc *sc;
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{
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return (cac_inl(sc, CAC_REG_DONE_FIFO));
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}
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static int
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cac_pci_l0_intr_pending(sc)
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struct cac_softc *sc;
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{
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return (cac_inl(sc, CAC_REG_INT_PENDING));
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}
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static void
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cac_pci_l0_intr_enable(sc, state)
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struct cac_softc *sc;
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int state;
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{
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cac_outl(sc, CAC_REG_INT_MASK, state);
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}
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static int
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cac_pci_l0_fifo_full(sc)
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struct cac_softc *sc;
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{
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return (cac_inl(sc, CAC_REG_CMD_FIFO) == 0);
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}
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static void
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cac_pci_l1_submit(sc, addr)
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struct cac_softc *sc;
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paddr_t addr;
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{
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cac_outl(sc, CAC_42REG_CMD_FIFO, addr);
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}
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static paddr_t
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cac_pci_l1_completed(sc)
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struct cac_softc *sc;
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{
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int32_t val;
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if ((val = cac_inl(sc, CAC_42REG_DONE_FIFO)) == -1)
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return (0);
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cac_outl(sc, CAC_42REG_DONE_FIFO, 0);
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return ((paddr_t)val);
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}
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static int
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cac_pci_l1_intr_pending(sc)
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struct cac_softc *sc;
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{
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return (cac_inl(sc, CAC_42REG_INT_PENDING) &
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cac_inl(sc, CAC_42REG_STATUS));
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}
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static void
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cac_pci_l1_intr_enable(sc, state)
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struct cac_softc *sc;
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int state;
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{
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cac_outl(sc, CAC_REG_INT_MASK, (state ? 0 : 8)); /* XXX */
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}
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static int
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cac_pci_l1_fifo_full(sc)
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struct cac_softc *sc;
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{
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return (~cac_inl(sc, CAC_42REG_CMD_FIFO));
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}
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