215 lines
7.0 KiB
C
215 lines
7.0 KiB
C
/*-
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* Copyright (c) 2002 Adaptec Inc.
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* All rights reserved.
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*
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* Written by: David Jeffery
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/ips/ips.h>
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static int ips_pci_free(ips_softc_t *sc);
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static void ips_intrhook(void *arg);
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static int ips_pci_probe(device_t dev)
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{
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if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
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(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
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device_set_desc(dev, "IBM ServeRAID Adapter");
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return 0;
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} else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
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(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
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device_set_desc(dev, "IBM ServeRAID Adapter");
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return (0);
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}
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return(ENXIO);
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}
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static int ips_pci_attach(device_t dev)
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{
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u_int32_t command;
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ips_softc_t *sc;
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if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
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device_printf(dev, "device is disabled\n");
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/* but return 0 so the !$)$)*!$*) unit isn't reused */
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return (0);
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}
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DEVICE_PRINTF(1, dev, "in attach.\n");
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sc = (ips_softc_t *)device_get_softc(dev);
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if(!sc){
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printf("how is sc NULL?!\n");
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return (ENXIO);
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}
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bzero(sc, sizeof(ips_softc_t));
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sc->dev = dev;
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if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
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sc->ips_adapter_reinit = ips_morpheus_reinit;
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sc->ips_adapter_intr = ips_morpheus_intr;
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sc->ips_issue_cmd = ips_issue_morpheus_cmd;
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} else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
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sc->ips_adapter_reinit = ips_copperhead_reinit;
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sc->ips_adapter_intr = ips_copperhead_intr;
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sc->ips_issue_cmd = ips_issue_copperhead_cmd;
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} else
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goto error;
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/* make sure busmastering is on */
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command = pci_read_config(dev, PCIR_COMMAND, 1);
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command |= PCIM_CMD_BUSMASTEREN;
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pci_write_config(dev, PCIR_COMMAND, command, 1);
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/* seting up io space */
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sc->iores = NULL;
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if(command & PCIM_CMD_MEMEN){
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PRINTF(10, "trying MEMIO\n");
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if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)
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sc->rid = PCIR_BAR(0);
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else
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sc->rid = PCIR_BAR(1);
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sc->iotype = SYS_RES_MEMORY;
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sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
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}
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if(!sc->iores && command & PCIM_CMD_PORTEN){
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PRINTF(10, "trying PORTIO\n");
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sc->rid = PCIR_BAR(0);
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sc->iotype = SYS_RES_IOPORT;
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sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
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}
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if(sc->iores == NULL){
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device_printf(dev, "resource allocation failed\n");
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return (ENXIO);
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}
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sc->bustag = rman_get_bustag(sc->iores);
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sc->bushandle = rman_get_bushandle(sc->iores);
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/*allocate an interrupt. when does the irq become active? after leaving attach? */
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sc->irqrid = 0;
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if(!(sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE))){
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device_printf(dev, "irq allocation failed\n");
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goto error;
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}
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if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){
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device_printf(dev, "irq setup failed\n");
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goto error;
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}
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if (bus_dma_tag_create( /* parent */ NULL,
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/* alignemnt */ 1,
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/* boundary */ 0,
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/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
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/* highaddr */ BUS_SPACE_MAXADDR,
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/* filter */ NULL,
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/* filterarg */ NULL,
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/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
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/* numsegs */ IPS_MAX_SG_ELEMENTS,
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/* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
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/* flags */ 0,
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/* lockfunc */ busdma_lock_mutex,
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/* lockarg */ &Giant,
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&sc->adapter_dmatag) != 0) {
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printf("IPS can't alloc dma tag\n");
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goto error;
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}
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sc->ips_ich.ich_func = ips_intrhook;
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sc->ips_ich.ich_arg = sc;
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if (config_intrhook_establish(&sc->ips_ich) != 0) {
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printf("IPS can't establish configuration hook\n");
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goto error;
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}
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return 0;
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error:
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ips_pci_free(sc);
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return (ENXIO);
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}
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static void
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ips_intrhook(void *arg)
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{
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struct ips_softc *sc = (struct ips_softc *)arg;
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config_intrhook_disestablish(&sc->ips_ich);
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if (ips_adapter_init(sc))
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ips_pci_free(sc);
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else
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sc->configured = 1;
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}
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static int ips_pci_free(ips_softc_t *sc)
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{
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if(sc->adapter_dmatag)
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bus_dma_tag_destroy(sc->adapter_dmatag);
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if(sc->irqcookie)
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bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
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if(sc->irqres)
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bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
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if(sc->iores)
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bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
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sc->configured = 0;
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return 0;
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}
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static int ips_pci_detach(device_t dev)
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{
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ips_softc_t *sc;
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DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
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sc = (ips_softc_t *) device_get_softc(dev);
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if (sc->configured) {
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sc->configured = 0;
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ips_flush_cache(sc);
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if(ips_adapter_free(sc))
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return EBUSY;
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ips_pci_free(sc);
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mtx_destroy(&sc->cmd_mtx);
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}
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return 0;
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}
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static int ips_pci_shutdown(device_t dev)
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{
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ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
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if (sc->configured) {
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ips_flush_cache(sc);
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}
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return 0;
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}
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static device_method_t ips_driver_methods[] = {
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DEVMETHOD(device_probe, ips_pci_probe),
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DEVMETHOD(device_attach, ips_pci_attach),
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DEVMETHOD(device_detach, ips_pci_detach),
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DEVMETHOD(device_shutdown, ips_pci_shutdown),
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{0,0}
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};
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static driver_t ips_pci_driver = {
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"ips",
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ips_driver_methods,
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sizeof(ips_softc_t),
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};
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static devclass_t ips_devclass;
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DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
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