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