273 lines
8.5 KiB
C
273 lines
8.5 KiB
C
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/*-
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* Copyright (c) 2000 Michael Smith
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* Copyright (c) 2000 BSDi
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* PCI bus interface and resource allocation.
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*/
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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 <dev/aac/aac_compat.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/devicestat.h>
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#include <sys/disk.h>
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#include <machine/bus_memio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <pci/pcireg.h>
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#include <pci/pcivar.h>
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#include <dev/aac/aacreg.h>
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#include <dev/aac/aacvar.h>
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static int aac_pci_probe(device_t dev);
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static int aac_pci_attach(device_t dev);
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static device_method_t aac_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, aac_pci_probe),
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DEVMETHOD(device_attach, aac_pci_attach),
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DEVMETHOD(device_detach, aac_detach),
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DEVMETHOD(device_shutdown, aac_shutdown),
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DEVMETHOD(device_suspend, aac_suspend),
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DEVMETHOD(device_resume, aac_resume),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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{ 0, 0 }
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};
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static driver_t aac_pci_driver = {
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"aac",
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aac_methods,
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sizeof(struct aac_softc)
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};
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DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0);
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struct aac_ident
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{
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u_int16_t vendor;
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u_int16_t device;
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u_int16_t subvendor;
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u_int16_t subdevice;
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int hwif;
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char *desc;
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} aac_identifiers[] = {
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{0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, "Dell PERC 2/Si"},
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{0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, "Dell PERC 3/Di"},
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{0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, "Dell PERC 3/Si"},
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{0x9005, 0x0282, 0x9005, 0x0282, AAC_HWIF_I960RX, "Adaptec AAC-2622"},
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{0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, "Adaptec AAC-364"},
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{0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, "Adaptec AAC-3642"},
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{0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, "Dell PERC 2/QC"},
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{0x1011, 0x0046, 0x9005, 0x1365, AAC_HWIF_STRONGARM, "Dell PERC 3/QC"}, /* XXX guess */
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{0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, "HP NetRaid-4M"},
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{0, 0, 0, 0, 0, 0}
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};
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/********************************************************************************
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* Determine whether this is one of our supported adapters.
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*/
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static int
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aac_pci_probe(device_t dev)
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{
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struct aac_ident *m;
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debug_called(1);
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for (m = aac_identifiers; m->vendor != 0; m++) {
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if ((m->vendor == pci_get_vendor(dev)) &&
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(m->device == pci_get_device(dev)) &&
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((m->subvendor == 0) || (m->subvendor == pci_get_subvendor(dev))) &&
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((m->subdevice == 0) || ((m->subdevice == pci_get_subdevice(dev))))) {
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device_set_desc(dev, m->desc);
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return(0);
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}
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}
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return(ENXIO);
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}
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/********************************************************************************
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* Allocate resources for our device, set up the bus interface.
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*/
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static int
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aac_pci_attach(device_t dev)
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{
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struct aac_softc *sc;
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int i, error;
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u_int32_t command;
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debug_called(1);
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/*
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* Initialise softc.
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*/
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sc = device_get_softc(dev);
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bzero(sc, sizeof(*sc));
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sc->aac_dev = dev;
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/* assume failure is 'not configured' */
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error = ENXIO;
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/*
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* Verify that the adapter is correctly set up in PCI space.
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*/
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command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
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command |= PCIM_CMD_BUSMASTEREN;
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pci_write_config(dev, PCIR_COMMAND, command, 2);
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command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
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if (!(command & PCIM_CMD_BUSMASTEREN)) {
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device_printf(sc->aac_dev, "can't enable bus-master feature\n");
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goto out;
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}
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if ((command & PCIM_CMD_MEMEN) == 0) {
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device_printf(sc->aac_dev, "memory window not available\n");
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goto out;
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}
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/*
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* Allocate the PCI register window.
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*/
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sc->aac_regs_rid = 0x10; /* first base address register */
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if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev, SYS_RES_MEMORY, &sc->aac_regs_rid,
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0, ~0, 1, RF_ACTIVE)) == NULL) {
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device_printf(sc->aac_dev, "couldn't allocate register window\n");
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goto out;
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}
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sc->aac_btag = rman_get_bustag(sc->aac_regs_resource);
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sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource);
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/*
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* Allocate and connect our interrupt.
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*/
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sc->aac_irq_rid = 0;
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if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ, &sc->aac_irq_rid,
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0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
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device_printf(sc->aac_dev, "can't allocate interrupt\n");
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goto out;
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}
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if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO, aac_intr, sc, &sc->aac_intr)) {
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device_printf(sc->aac_dev, "can't set up interrupt\n");
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goto out;
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}
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/* assume failure is 'out of memory' */
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error = ENOMEM;
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/*
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* Allocate the parent bus DMA tag appropriate for our PCI interface.
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*
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* Note that some of these controllers are 64-bit capable.
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*/
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if (bus_dma_tag_create(NULL, /* parent */
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1, 0, /* alignment, boundary */
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BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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BUS_DMA_ALLOCNOW, /* flags */
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&sc->aac_parent_dmat)) {
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device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
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goto out;
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}
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/*
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* Create DMA tag for mapping buffers into controller-addressable space.
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*/
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if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
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1, 0, /* alignment, boundary */
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BUS_SPACE_MAXADDR, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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0, /* flags */
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&sc->aac_buffer_dmat)) {
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device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
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goto out;
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}
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/*
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* Create DMA tag for mapping FIBs into controller-addressable space..
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*/
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if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
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1, 0, /* alignment, boundary */
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BUS_SPACE_MAXADDR, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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AAC_CLUSTER_COUNT * sizeof(struct aac_fib), 1,/* maxsize, nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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0, /* flags */
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&sc->aac_fib_dmat)) {
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device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");
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goto out;
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}
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/*
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* Detect the hardware interface version, set up the bus interface indirection.
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*/
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for (i = 0; aac_identifiers[i].vendor != 0; i++) {
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if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) &&
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(aac_identifiers[i].device == pci_get_device(dev))) {
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sc->aac_hwif = aac_identifiers[i].hwif;
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switch(sc->aac_hwif) {
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case AAC_HWIF_I960RX:
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debug(2, "set hardware up for i960Rx");
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sc->aac_if = aac_rx_interface;
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break;
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case AAC_HWIF_STRONGARM:
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debug(2, "set hardware up for StrongARM");
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sc->aac_if = aac_sa_interface;
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break;
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}
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break;
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}
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}
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/*
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* Do bus-independent initialisation.
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*/
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error = aac_attach(sc);
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out:
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if (error)
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aac_free(sc);
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return(error);
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}
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