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 52 static int mlx_pci_probe(device_t dev); 53 static int mlx_pci_attach(device_t dev); 54 55 static 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 67 static driver_t mlx_pci_driver = { 68 "mlx", 69 mlx_methods, 70 sizeof(struct mlx_softc) 71 }; 72 73 DRIVER_MODULE(mlx, pci, mlx_pci_driver, mlx_devclass, 0, 0); 74 75 struct 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 91 static int 92 mlx_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 } 110 111 static int 112 mlx_pci_attach(device_t dev) 113 { 114 struct mlx_softc *sc; 115 int i, error; 116 u_int32_t command; 117 118 debug_called(1); 119 120 /* 121 * Make sure we are going to be able to talk to this board. 122 */ 123 command = pci_read_config(dev, PCIR_COMMAND, 2); 124 if ((command & PCIM_CMD_MEMEN) == 0) { 125 device_printf(dev, "memory window not available\n"); 126 return(ENXIO); 127 } 128 /* force the busmaster enable bit on */ 129 command |= PCIM_CMD_BUSMASTEREN; 130 pci_write_config(dev, PCIR_COMMAND, command, 2); 131 132 /* 133 * Initialise softc. 134 */ 135 sc = device_get_softc(dev); 136 bzero(sc, sizeof(*sc)); 137 sc->mlx_dev = dev; 138 139 /* 140 * Work out what sort of adapter this is (we need to know this in order 141 * to map the appropriate interface resources). 142 */ 143 sc->mlx_iftype = 0; 144 for (i = 0; mlx_identifiers[i].vendor != 0; i++) { 145 if ((mlx_identifiers[i].vendor == pci_get_vendor(dev)) && 146 (mlx_identifiers[i].device == pci_get_device(dev))) { 147 sc->mlx_iftype = mlx_identifiers[i].iftype; 148 break; 149 } 150 } 151 if (sc->mlx_iftype == 0) /* shouldn't happen */ 152 return(ENXIO); 153 154 /* 155 * Allocate the PCI register window. 156 */ 157 158 /* type 2/3 adapters have an I/O region we don't prefer at base 0 */ 159 switch(sc->mlx_iftype) { 160 case MLX_IFTYPE_2: 161 case MLX_IFTYPE_3: 162 sc->mlx_mem_type = SYS_RES_MEMORY; 163 sc->mlx_mem_rid = MLX_CFG_BASE1; 164 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 165 &sc->mlx_mem_rid, RF_ACTIVE); 166 if (sc->mlx_mem == NULL) { 167 sc->mlx_mem_type = SYS_RES_IOPORT; 168 sc->mlx_mem_rid = MLX_CFG_BASE0; 169 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 170 &sc->mlx_mem_rid, RF_ACTIVE); 171 } 172 break; 173 case MLX_IFTYPE_4: 174 case MLX_IFTYPE_5: 175 sc->mlx_mem_type = SYS_RES_MEMORY; 176 sc->mlx_mem_rid = MLX_CFG_BASE0; 177 sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type, 178 &sc->mlx_mem_rid, RF_ACTIVE); 179 break; 180 } 181 if (sc->mlx_mem == NULL) { 182 device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n"); 183 mlx_free(sc); 184 return(ENXIO); 185 } 186 sc->mlx_btag = rman_get_bustag(sc->mlx_mem); 187 sc->mlx_bhandle = rman_get_bushandle(sc->mlx_mem); 188 189 /* 190 * Allocate the parent bus DMA tag appropriate for PCI. 191 */ 192 error = bus_dma_tag_create(NULL, /* parent */ 193 1, 0, /* alignment, boundary */ 194 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 195 BUS_SPACE_MAXADDR, /* highaddr */ 196 NULL, NULL, /* filter, filterarg */ 197 MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */ 198 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 199 BUS_DMA_ALLOCNOW, /* flags */ 200 NULL, /* lockfunc */ 201 NULL, /* lockarg */ 202 &sc->mlx_parent_dmat); 203 if (error != 0) { 204 device_printf(dev, "can't allocate parent DMA tag\n"); 205 mlx_free(sc); 206 return(ENOMEM); 207 } 208 209 /* 210 * Do bus-independant initialisation. 211 */ 212 error = mlx_attach(sc); 213 if (error != 0) { 214 mlx_free(sc); 215 return(error); 216 } 217 218 /* 219 * Start the controller. 220 */ 221 mlx_startup(sc); 222 return(0); 223 } 224