dpt_pci.c revision 254263
1193323Sed/*- 2193323Sed * Copyright (c) 2000 Matthew N. Dodd <winter@jurai.net> 3193323Sed * All rights reserved. 4193323Sed * 5193323Sed * Copyright (c) 1997 Simon Shapiro 6193323Sed * All Rights Reserved 7193323Sed * 8193323Sed * Redistribution and use in source and binary forms, with or without 9193323Sed * modification, are permitted provided that the following conditions 10193323Sed * are met: 11193323Sed * 1. Redistributions of source code must retain the above copyright 12195340Sed * notice, this list of conditions and the following disclaimer. 13193323Sed * 2. Redistributions in binary form must reproduce the above copyright 14193323Sed * notice, this list of conditions and the following disclaimer in the 15193323Sed * documentation and/or other materials provided with the distribution. 16243830Sdim * 17249423Sdim * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18263508Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19243830Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20212793Sdim * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21193323Sed * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22193323Sed * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23195098Sed * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24195098Sed * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25193323Sed * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26195098Sed * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27234353Sdim * SUCH DAMAGE. 28218885Sdim */ 29249423Sdim 30263508Sdim#include <sys/cdefs.h> 31249423Sdim__FBSDID("$FreeBSD: head/sys/dev/dpt/dpt_pci.c 254263 2013-08-12 23:30:01Z scottl $"); 32249423Sdim 33263508Sdim#include <sys/param.h> 34249423Sdim#include <sys/systm.h> 35193323Sed#include <sys/kernel.h> 36249423Sdim#include <sys/module.h> 37249423Sdim#include <sys/lock.h> 38249423Sdim#include <sys/mutex.h> 39193323Sed#include <sys/bus.h> 40249423Sdim 41249423Sdim#include <machine/bus.h> 42193323Sed#include <machine/resource.h> 43193323Sed#include <sys/rman.h> 44193323Sed 45218885Sdim#include <dev/pci/pcireg.h> 46263508Sdim#include <dev/pci/pcivar.h> 47218885Sdim 48249423Sdim#include <cam/scsi/scsi_all.h> 49226584Sdim 50249423Sdim#include <dev/dpt/dpt.h> 51263508Sdim 52193323Sed#define DPT_VENDOR_ID 0x1044 53218885Sdim#define DPT_DEVICE_ID 0xa400 54218885Sdim 55218885Sdim#define DPT_PCI_IOADDR PCIR_BAR(0) /* I/O Address */ 56218885Sdim#define DPT_PCI_MEMADDR PCIR_BAR(1) /* Mem I/O Address */ 57218885Sdim 58218885Sdim#define ISA_PRIMARY_WD_ADDRESS 0x1f8 59218885Sdim 60218885Sdimstatic int dpt_pci_probe (device_t); 61193323Sedstatic int dpt_pci_attach (device_t); 62193323Sed 63193323Sedstatic int 64193323Seddpt_pci_probe (device_t dev) 65193323Sed{ 66193323Sed if ((pci_get_vendor(dev) == DPT_VENDOR_ID) && 67193323Sed (pci_get_device(dev) == DPT_DEVICE_ID)) { 68193323Sed device_set_desc(dev, "DPT Caching SCSI RAID Controller"); 69193323Sed return (BUS_PROBE_DEFAULT); 70193323Sed } 71193323Sed return (ENXIO); 72193323Sed} 73193323Sed 74218885Sdimstatic int 75218885Sdimdpt_pci_attach (device_t dev) 76218885Sdim{ 77218885Sdim dpt_softc_t * dpt; 78263508Sdim int error = 0; 79263508Sdim 80263508Sdim dpt = device_get_softc(dev); 81263508Sdim dpt->dev = dev; 82243830Sdim dpt_alloc(dev); 83243830Sdim 84243830Sdim#ifdef DPT_ALLOW_MMIO 85243830Sdim dpt->io_rid = DPT_PCI_MEMADDR; 86243830Sdim dpt->io_type = SYS_RES_MEMORY; 87243830Sdim dpt->io_res = bus_alloc_resource_any(dev, dpt->io_type, 88243830Sdim &dpt->io_rid, RF_ACTIVE); 89263508Sdim#endif 90263508Sdim if (dpt->io_res == NULL) { 91263508Sdim dpt->io_rid = DPT_PCI_IOADDR; 92263508Sdim dpt->io_type = SYS_RES_IOPORT; 93263508Sdim dpt->io_res = bus_alloc_resource_any(dev, dpt->io_type, 94263508Sdim &dpt->io_rid, RF_ACTIVE); 95263508Sdim } 96263508Sdim 97263508Sdim if (dpt->io_res == NULL) { 98263508Sdim device_printf(dev, "can't allocate register resources\n"); 99263508Sdim error = ENOMEM; 100263508Sdim goto bad; 101193323Sed } 102193323Sed dpt->io_offset = 0x10; 103193323Sed 104193323Sed dpt->irq_rid = 0; 105193323Sed dpt->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &dpt->irq_rid, 106193323Sed RF_ACTIVE | RF_SHAREABLE); 107193323Sed if (dpt->irq_res == NULL) { 108193323Sed device_printf(dev, "No irq?!\n"); 109193323Sed error = ENOMEM; 110193323Sed goto bad; 111193323Sed } 112193323Sed 113193323Sed /* Ensure busmastering is enabled */ 114203954Srdivacky pci_enable_busmaster(dev); 115203954Srdivacky 116203954Srdivacky if (rman_get_start(dpt->io_res) == (ISA_PRIMARY_WD_ADDRESS - 0x10)) { 117203954Srdivacky#ifdef DPT_DEBUG_WARN 118203954Srdivacky device_printf(dev, "Mapped as an IDE controller. " 119203954Srdivacky "Disabling SCSI setup\n"); 120203954Srdivacky#endif 121203954Srdivacky error = ENXIO; 122203954Srdivacky goto bad; 123203954Srdivacky } 124203954Srdivacky 125203954Srdivacky /* Allocate a dmatag representing the capabilities of this attachment */ 126203954Srdivacky if (bus_dma_tag_create( /* PCI parent */ bus_get_dma_tag(dev), 127203954Srdivacky /* alignemnt */ 1, 128203954Srdivacky /* boundary */ 0, 129203954Srdivacky /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 130193323Sed /* highaddr */ BUS_SPACE_MAXADDR, 131193323Sed /* filter */ NULL, 132193323Sed /* filterarg */ NULL, 133193323Sed /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 134193323Sed /* nsegments */ ~0, 135234353Sdim /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 136263508Sdim /* flags */ 0, 137263508Sdim /* lockfunc */ NULL, 138263508Sdim /* lockarg */ NULL, 139263508Sdim &dpt->parent_dmat) != 0) { 140263508Sdim error = ENXIO; 141193323Sed goto bad; 142193323Sed } 143193323Sed 144193323Sed if (dpt_init(dpt) != 0) { 145234353Sdim error = ENXIO; 146193323Sed goto bad; 147193323Sed } 148193323Sed 149193323Sed /* Register with the XPT */ 150193323Sed dpt_attach(dpt); 151193323Sed 152193323Sed if (bus_setup_intr(dev, dpt->irq_res, INTR_TYPE_CAM | INTR_ENTROPY | 153193323Sed INTR_MPSAFE, NULL, dpt_intr, dpt, &dpt->ih)) { 154226584Sdim device_printf(dev, "Unable to register interrupt handler\n"); 155226584Sdim error = ENXIO; 156226584Sdim goto bad; 157226584Sdim } 158226584Sdim 159226584Sdim return (error); 160226584Sdim 161226584Sdimbad: 162226584Sdim dpt_release_resources(dev); 163226584Sdim 164226584Sdim dpt_free(dpt); 165226584Sdim 166226584Sdim return (error); 167226584Sdim} 168226584Sdim 169226584Sdimstatic device_method_t dpt_pci_methods[] = { 170226584Sdim /* Device interface */ 171226584Sdim DEVMETHOD(device_probe, dpt_pci_probe), 172226584Sdim DEVMETHOD(device_attach, dpt_pci_attach), 173226584Sdim DEVMETHOD(device_detach, dpt_detach), 174226584Sdim 175226584Sdim { 0, 0 } 176226584Sdim}; 177226584Sdim 178226584Sdimstatic driver_t dpt_pci_driver = { 179226584Sdim "dpt", 180226584Sdim dpt_pci_methods, 181226584Sdim sizeof(dpt_softc_t), 182226584Sdim}; 183226584Sdim 184226584SdimDRIVER_MODULE(dpt, pci, dpt_pci_driver, dpt_devclass, 0, 0); 185226584SdimMODULE_DEPEND(dpt, pci, 1, 1, 1); 186234982SdimMODULE_DEPEND(dpt, cam, 1, 1, 1); 187243830Sdim