1/*- 2 * Copyright (c) 1999 Michael Smith 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/kernel.h> 33#include <sys/module.h> 34 35#include <sys/bus.h> 36#include <sys/conf.h> 37 38#include <machine/bus.h> 39#include <machine/resource.h> 40#include <sys/rman.h> 41 42#include <geom/geom_disk.h> 43 44#include <dev/pci/pcireg.h> 45#include <dev/pci/pcivar.h> 46 47#include <dev/mlx/mlx_compat.h> 48#include <dev/mlx/mlxio.h> 49#include <dev/mlx/mlxvar.h> 50#include <dev/mlx/mlxreg.h> 51 52static int mlx_pci_probe(device_t dev); 53static int mlx_pci_attach(device_t dev); 54 55static device_method_t mlx_methods[] = { 56 /* Device interface */ 57 DEVMETHOD(device_probe, mlx_pci_probe), 58 DEVMETHOD(device_attach, mlx_pci_attach), 59 DEVMETHOD(device_detach, mlx_detach), 60 DEVMETHOD(device_shutdown, mlx_shutdown), 61 DEVMETHOD(device_suspend, mlx_suspend), 62 DEVMETHOD(device_resume, mlx_resume), 63 64 DEVMETHOD_END 65}; 66 67static driver_t mlx_pci_driver = { 68 "mlx", 69 mlx_methods, 70 sizeof(struct mlx_softc) 71}; 72 73DRIVER_MODULE(mlx, pci, mlx_pci_driver, mlx_devclass, 0, 0); 74 75struct mlx_ident 76{ 77 u_int16_t vendor; 78 u_int16_t device; 79 u_int16_t subvendor; 80 u_int16_t subdevice; 81 int iftype; 82 char *desc; 83} mlx_identifiers[] = { 84 {0x1069, 0x0001, 0x0000, 0x0000, MLX_IFTYPE_2, "Mylex version 2 RAID interface"}, 85 {0x1069, 0x0002, 0x0000, 0x0000, MLX_IFTYPE_3, "Mylex version 3 RAID interface"}, 86 {0x1069, 0x0010, 0x0000, 0x0000, MLX_IFTYPE_4, "Mylex version 4 RAID interface"}, 87 {0x1011, 0x1065, 0x1069, 0x0020, MLX_IFTYPE_5, "Mylex version 5 RAID interface"}, 88 {0, 0, 0, 0, 0, 0} 89}; 90 91static int 92mlx_pci_probe(device_t dev) 93{ 94 struct mlx_ident *m; 95 96 debug_called(1); 97 98 for (m = mlx_identifiers; m->vendor != 0; m++) { 99 if ((m->vendor == pci_get_vendor(dev)) && 100 (m->device == pci_get_device(dev)) && 101 ((m->subvendor == 0) || ((m->subvendor == pci_get_subvendor(dev)) && 102 (m->subdevice == pci_get_subdevice(dev))))) { 103 104 device_set_desc(dev, m->desc); 105 return(BUS_PROBE_DEFAULT); 106 } 107 } 108 return(ENXIO); 109} 110 111static int 112mlx_pci_attach(device_t dev) 113{ 114 struct mlx_softc *sc; 115 int i, error; 116 117 debug_called(1); 118 119 /* force the busmaster enable bit on */ 120 pci_enable_busmaster(dev); 121 122 /* 123 * Initialise softc. 124 */ 125 sc = device_get_softc(dev); 126 bzero(sc, sizeof(*sc)); 127 sc->mlx_dev = dev; 128 129 /* 130 * Work out what sort of adapter this is (we need to know this in order 131 * to map the appropriate interface resources). 132 */ 133 sc->mlx_iftype = 0; 134 for (i = 0; mlx_identifiers[i].vendor != 0; i++) { 135 if ((mlx_identifiers[i].vendor == pci_get_vendor(dev)) && 136 (mlx_identifiers[i].device == pci_get_device(dev))) { 137 sc->mlx_iftype = mlx_identifiers[i].iftype; 138 break; 139 } 140 } 141 if (sc->mlx_iftype == 0) /* shouldn't happen */ 142 return(ENXIO); 143 144 /* 145 * Allocate the PCI register window. 146 */ 147 148 /* type 2/3 adapters have an I/O region we don't prefer at base 0 */ 149 switch(sc->mlx_iftype) { 150 case MLX_IFTYPE_2: 151 case MLX_IFTYPE_3: 152 sc->mlx_mem_type = SYS_RES_MEMORY; 153 sc->mlx_mem_rid = MLX_CFG_BASE1; 154 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 155 &sc->mlx_mem_rid, RF_ACTIVE); 156 if (sc->mlx_mem == NULL) { 157 sc->mlx_mem_type = SYS_RES_IOPORT; 158 sc->mlx_mem_rid = MLX_CFG_BASE0; 159 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 160 &sc->mlx_mem_rid, RF_ACTIVE); 161 } 162 break; 163 case MLX_IFTYPE_4: 164 case MLX_IFTYPE_5: 165 sc->mlx_mem_type = SYS_RES_MEMORY; 166 sc->mlx_mem_rid = MLX_CFG_BASE0; 167 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 168 &sc->mlx_mem_rid, RF_ACTIVE); 169 break; 170 } 171 if (sc->mlx_mem == NULL) { 172 device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n"); 173 mlx_free(sc); 174 return(ENXIO); 175 } 176 sc->mlx_btag = rman_get_bustag(sc->mlx_mem); 177 sc->mlx_bhandle = rman_get_bushandle(sc->mlx_mem); 178 179 /* 180 * Allocate the parent bus DMA tag appropriate for PCI. 181 */ 182 error = bus_dma_tag_create(bus_get_dma_tag(dev), /* PCI parent */ 183 1, 0, /* alignment, boundary */ 184 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 185 BUS_SPACE_MAXADDR, /* highaddr */ 186 NULL, NULL, /* filter, filterarg */ 187 MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */ 188 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 189 BUS_DMA_ALLOCNOW, /* flags */ 190 NULL, /* lockfunc */ 191 NULL, /* lockarg */ 192 &sc->mlx_parent_dmat); 193 if (error != 0) { 194 device_printf(dev, "can't allocate parent DMA tag\n"); 195 mlx_free(sc); 196 return(ENOMEM); 197 } 198 199 /* 200 * Do bus-independant initialisation. 201 */ 202 error = mlx_attach(sc); 203 if (error != 0) { 204 mlx_free(sc); 205 return(error); 206 } 207 208 /* 209 * Start the controller. 210 */ 211 mlx_startup(sc); 212 return(0); 213} 214