215 lines
5.8 KiB
C
215 lines
5.8 KiB
C
/*-
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* Copyright (c) 1999 Michael Smith
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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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#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/bus.h>
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#include <sys/buf.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_pio.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/amr/amrio.h>
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#include <dev/amr/amrreg.h>
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#include <dev/amr/amrvar.h>
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#if 0
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#define debug(fmt, args...) printf("%s: " fmt "\n", __FUNCTION__ , ##args)
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#else
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#define debug(fmt, args...)
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#endif
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static int amr_pci_probe(device_t dev);
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static int amr_pci_attach(device_t dev);
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static device_method_t amr_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, amr_pci_probe),
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DEVMETHOD(device_attach, amr_pci_attach),
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DEVMETHOD(device_detach, amr_detach),
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DEVMETHOD(device_shutdown, amr_shutdown),
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DEVMETHOD(device_suspend, amr_suspend),
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DEVMETHOD(device_resume, amr_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 amr_pci_driver = {
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"amr",
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amr_methods,
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sizeof(struct amr_softc)
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};
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DRIVER_MODULE(amr, pci, amr_pci_driver, amr_devclass, 0, 0);
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static struct
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{
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int vendor;
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int device;
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int flag;
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#define PROBE_SIGNATURE (1<<0)
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} amr_device_ids[] = {
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{0x101e, 0x9010, 0},
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{0x101e, 0x9060, 0},
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{0x8086, 0x1960, PROBE_SIGNATURE}, /* generic i960RD, check signature */
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{0, 0, 0}
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};
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static int
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amr_pci_probe(device_t dev)
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{
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int i;
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debug("called");
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for (i = 0; amr_device_ids[i].vendor != 0; i++) {
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if ((pci_get_vendor(dev) == amr_device_ids[i].vendor) &&
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(pci_get_device(dev) == amr_device_ids[i].device)) {
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/* do we need to test for a signature? */
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if ((amr_device_ids[i].flag & PROBE_SIGNATURE) &&
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(pci_read_config(dev, AMR_CFG_SIG, 2) != AMR_SIGNATURE))
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continue;
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device_set_desc(dev, "AMI MegaRAID");
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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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static int
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amr_pci_attach(device_t dev)
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{
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struct amr_softc *sc;
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int rid, rtype, error;
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u_int32_t command;
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debug("called");
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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->amr_dev = dev;
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/*
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* Determine board type..
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*/
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command = pci_read_config(dev, PCIR_COMMAND, 1);
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if ((pci_get_vendor(dev) == 0x8086) && (pci_get_device(dev) == 0x1960)) {
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sc->amr_type = AMR_TYPE_QUARTZ;
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/*
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* Make sure we are going to be able to talk to this board.
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*/
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if ((command & PCIM_CMD_MEMEN) == 0) {
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device_printf(dev, "memory window not available\n");
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return(ENXIO);
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}
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} else {
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sc->amr_type = AMR_TYPE_STD;
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/*
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* Make sure we are going to be able to talk to this board.
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*/
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if ((command & PCIM_CMD_PORTEN) == 0) {
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device_printf(dev, "I/O window not available\n");
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return(ENXIO);
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}
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}
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/* force the busmaster enable bit on */
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if (!(command & PCIM_CMD_BUSMASTEREN)) {
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device_printf(dev, "busmaster bit not set, enabling\n");
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command |= PCIM_CMD_BUSMASTEREN;
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pci_write_config(dev, PCIR_COMMAND, command, 2);
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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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rid = AMR_CFG_BASE;
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rtype = (sc->amr_type == AMR_TYPE_QUARTZ) ? SYS_RES_MEMORY : SYS_RES_IOPORT;
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sc->amr_reg = bus_alloc_resource(dev, rtype, &rid, 0, ~0, 1, RF_ACTIVE);
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if (sc->amr_reg == NULL) {
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device_printf(sc->amr_dev, "couldn't allocate register window\n");
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amr_free(sc);
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return(ENXIO);
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}
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sc->amr_btag = rman_get_bustag(sc->amr_reg);
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sc->amr_bhandle = rman_get_bushandle(sc->amr_reg);
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/*
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* Allocate the parent bus DMA tag appropriate for PCI.
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*/
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error = 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, AMR_NSEG, /* maxsize, nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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BUS_DMA_ALLOCNOW, /* flags */
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&sc->amr_parent_dmat);
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if (error != 0) {
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device_printf(dev, "can't allocate parent DMA tag\n");
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amr_free(sc);
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return(ENOMEM);
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}
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/*
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* Do bus-independant initialisation.
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*/
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error = amr_attach(sc);
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if (error != 0) {
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amr_free(sc);
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return(error);
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}
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/*
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* Start the controller.
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*/
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amr_startup(sc);
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return(0);
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}
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