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_memio.h> 39 #include <machine/bus_pio.h> 40 #include <machine/bus.h> 41 #include <machine/resource.h> 42 #include <sys/rman.h> 43 44 #include <geom/geom_disk.h> 45 46 #include <dev/pci/pcireg.h> 47 #include <dev/pci/pcivar.h> 48 49 #include <dev/mlx/mlx_compat.h> 50 #include <dev/mlx/mlxio.h> 51 #include <dev/mlx/mlxvar.h> 52 #include <dev/mlx/mlxreg.h> 53 54 static int mlx_pci_probe(device_t dev); 55 static int mlx_pci_attach(device_t dev); 56 57 static device_method_t mlx_methods[] = { 58 /* Device interface */ 59 DEVMETHOD(device_probe, mlx_pci_probe), 60 DEVMETHOD(device_attach, mlx_pci_attach), 61 DEVMETHOD(device_detach, mlx_detach), 62 DEVMETHOD(device_shutdown, mlx_shutdown), 63 DEVMETHOD(device_suspend, mlx_suspend), 64 DEVMETHOD(device_resume, mlx_resume), 65 66 DEVMETHOD(bus_print_child, bus_generic_print_child), 67 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 68 { 0, 0 } 69 }; 70 71 static driver_t mlx_pci_driver = { 72 "mlx", 73 mlx_methods, 74 sizeof(struct mlx_softc) 75 }; 76 77 DRIVER_MODULE(mlx, pci, mlx_pci_driver, mlx_devclass, 0, 0); 78 79 struct mlx_ident 80 { 81 u_int16_t vendor; 82 u_int16_t device; 83 u_int16_t subvendor; 84 u_int16_t subdevice; 85 int iftype; 86 char *desc; 87 } mlx_identifiers[] = { 88 {0x1069, 0x0001, 0x0000, 0x0000, MLX_IFTYPE_2, "Mylex version 2 RAID interface"}, 89 {0x1069, 0x0002, 0x0000, 0x0000, MLX_IFTYPE_3, "Mylex version 3 RAID interface"}, 90 {0x1069, 0x0010, 0x0000, 0x0000, MLX_IFTYPE_4, "Mylex version 4 RAID interface"}, 91 {0x1011, 0x1065, 0x1069, 0x0020, MLX_IFTYPE_5, "Mylex version 5 RAID interface"}, 92 {0, 0, 0, 0, 0, 0} 93 }; 94 95 static int 96 mlx_pci_probe(device_t dev) 97 { 98 struct mlx_ident *m; 99 100 debug_called(1); 101 102 for (m = mlx_identifiers; m->vendor != 0; m++) { 103 if ((m->vendor == pci_get_vendor(dev)) && 104 (m->device == pci_get_device(dev)) && 105 ((m->subvendor == 0) || ((m->subvendor == pci_get_subvendor(dev)) && 106 (m->subdevice == pci_get_subdevice(dev))))) { 107 108 device_set_desc(dev, m->desc); 109 return(-10); /* allow room to be overridden */ 110 } 111 } 112 return(ENXIO); 113 } 114 115 static int 116 mlx_pci_attach(device_t dev) 117 { 118 struct mlx_softc *sc; 119 int i, error; 120 u_int32_t command; 121 122 debug_called(1); 123 124 /* 125 * Make sure we are going to be able to talk to this board. 126 */ 127 command = pci_read_config(dev, PCIR_COMMAND, 2); 128 if ((command & PCIM_CMD_MEMEN) == 0) { 129 device_printf(dev, "memory window not available\n"); 130 return(ENXIO); 131 } 132 /* force the busmaster enable bit on */ 133 command |= PCIM_CMD_BUSMASTEREN; 134 pci_write_config(dev, PCIR_COMMAND, command, 2); 135 136 /* 137 * Initialise softc. 138 */ 139 sc = device_get_softc(dev); 140 bzero(sc, sizeof(*sc)); 141 sc->mlx_dev = dev; 142 143 /* 144 * Work out what sort of adapter this is (we need to know this in order 145 * to map the appropriate interface resources). 146 */ 147 sc->mlx_iftype = 0; 148 for (i = 0; mlx_identifiers[i].vendor != 0; i++) { 149 if ((mlx_identifiers[i].vendor == pci_get_vendor(dev)) && 150 (mlx_identifiers[i].device == pci_get_device(dev))) { 151 sc->mlx_iftype = mlx_identifiers[i].iftype; 152 break; 153 } 154 } 155 if (sc->mlx_iftype == 0) /* shouldn't happen */ 156 return(ENXIO); 157 158 /* 159 * Allocate the PCI register window. 160 */ 161 162 /* type 2/3 adapters have an I/O region we don't prefer at base 0 */ 163 switch(sc->mlx_iftype) { 164 case MLX_IFTYPE_2: 165 case MLX_IFTYPE_3: 166 sc->mlx_mem_type = SYS_RES_MEMORY; 167 sc->mlx_mem_rid = MLX_CFG_BASE1; 168 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 169 &sc->mlx_mem_rid, RF_ACTIVE); 170 if (sc->mlx_mem == NULL) { 171 sc->mlx_mem_type = SYS_RES_IOPORT; 172 sc->mlx_mem_rid = MLX_CFG_BASE0; 173 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 174 &sc->mlx_mem_rid, RF_ACTIVE); 175 } 176 break; 177 case MLX_IFTYPE_4: 178 case MLX_IFTYPE_5: 179 sc->mlx_mem_type = SYS_RES_MEMORY; 180 sc->mlx_mem_rid = MLX_CFG_BASE0; 181 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 182 &sc->mlx_mem_rid, RF_ACTIVE); 183 break; 184 } 185 if (sc->mlx_mem == NULL) { 186 device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n"); 187 mlx_free(sc); 188 return(ENXIO); 189 } 190 sc->mlx_btag = rman_get_bustag(sc->mlx_mem); 191 sc->mlx_bhandle = rman_get_bushandle(sc->mlx_mem); 192 193 /* 194 * Allocate the parent bus DMA tag appropriate for PCI. 195 */ 196 error = bus_dma_tag_create(NULL, /* parent */ 197 1, 0, /* alignment, boundary */ 198 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 199 BUS_SPACE_MAXADDR, /* highaddr */ 200 NULL, NULL, /* filter, filterarg */ 201 MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */ 202 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 203 BUS_DMA_ALLOCNOW, /* flags */ 204 NULL, /* lockfunc */ 205 NULL, /* lockarg */ 206 &sc->mlx_parent_dmat); 207 if (error != 0) { 208 device_printf(dev, "can't allocate parent DMA tag\n"); 209 mlx_free(sc); 210 return(ENOMEM); 211 } 212 213 /* 214 * Do bus-independant initialisation. 215 */ 216 error = mlx_attach(sc); 217 if (error != 0) { 218 mlx_free(sc); 219 return(error); 220 } 221 222 /* 223 * Start the controller. 224 */ 225 mlx_startup(sc); 226 return(0); 227 } 228