/*- * Copyright (c) 1999 Michael Smith * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sys/dev/mlx/mlx_pci.c,v 1.4.2.5 2001/06/25 04:37:51 msmith Exp $ */ #include #include #include #include #include #include #include #include #include #include #include "mlx_compat.h" #include "mlxio.h" #include "mlxvar.h" #include "mlxreg.h" static int mlx_pci_probe(device_t dev); static int mlx_pci_attach(device_t dev); static device_method_t mlx_methods[] = { /* Device interface */ DEVMETHOD(device_probe, mlx_pci_probe), DEVMETHOD(device_attach, mlx_pci_attach), DEVMETHOD(device_detach, mlx_detach), DEVMETHOD(device_shutdown, mlx_shutdown), DEVMETHOD(device_suspend, mlx_suspend), DEVMETHOD(device_resume, mlx_resume), DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_driver_added, bus_generic_driver_added), DEVMETHOD_END }; static driver_t mlx_pci_driver = { "mlx", mlx_methods, sizeof(struct mlx_softc) }; DRIVER_MODULE(mlx, pci, mlx_pci_driver, mlx_devclass, NULL, NULL); struct mlx_ident { u_int16_t vendor; u_int16_t device; u_int16_t subvendor; u_int16_t subdevice; int iftype; char *desc; } mlx_identifiers[] = { {0x1069, 0x0001, 0x0000, 0x0000, MLX_IFTYPE_2, "Mylex version 2 RAID interface"}, {0x1069, 0x0002, 0x0000, 0x0000, MLX_IFTYPE_3, "Mylex version 3 RAID interface"}, {0x1069, 0x0010, 0x0000, 0x0000, MLX_IFTYPE_4, "Mylex version 4 RAID interface"}, {0x1011, 0x1065, 0x1069, 0x0020, MLX_IFTYPE_5, "Mylex version 5 RAID interface"}, {0, 0, 0, 0, 0, 0} }; static int mlx_pci_probe(device_t dev) { struct mlx_ident *m; debug_called(1); for (m = mlx_identifiers; m->vendor != 0; m++) { if ((m->vendor == pci_get_vendor(dev)) && (m->device == pci_get_device(dev)) && ((m->subvendor == 0) || ((m->subvendor == pci_get_subvendor(dev)) && (m->subdevice == pci_get_subdevice(dev))))) { device_set_desc(dev, m->desc); return(-10); /* allow room to be overridden */ } } return(ENXIO); } static int mlx_pci_attach(device_t dev) { struct mlx_softc *sc; int i, error; u_int32_t command; debug_called(1); /* * Make sure we are going to be able to talk to this board. */ command = pci_read_config(dev, PCIR_COMMAND, 2); if ((command & PCIM_CMD_MEMEN) == 0) { device_printf(dev, "memory window not available\n"); return(ENXIO); } /* force the busmaster enable bit on */ command |= PCIM_CMD_BUSMASTEREN; pci_write_config(dev, PCIR_COMMAND, command, 2); /* * Initialise softc. */ sc = device_get_softc(dev); bzero(sc, sizeof(*sc)); sc->mlx_dev = dev; /* * Work out what sort of adapter this is (we need to know this in order * to map the appropriate interface resources). */ sc->mlx_iftype = 0; for (i = 0; mlx_identifiers[i].vendor != 0; i++) { if ((mlx_identifiers[i].vendor == pci_get_vendor(dev)) && (mlx_identifiers[i].device == pci_get_device(dev))) { sc->mlx_iftype = mlx_identifiers[i].iftype; break; } } if (sc->mlx_iftype == 0) /* shouldn't happen */ return(ENXIO); /* * Allocate the PCI register window. */ /* type 2/3 adapters have an I/O region we don't prefer at base 0 */ switch(sc->mlx_iftype) { case MLX_IFTYPE_2: case MLX_IFTYPE_3: sc->mlx_mem_type = SYS_RES_MEMORY; sc->mlx_mem_rid = MLX_CFG_BASE1; sc->mlx_mem = bus_alloc_resource(dev, sc->mlx_mem_type, &sc->mlx_mem_rid, 0, ~0, 1, RF_ACTIVE); if (sc->mlx_mem == NULL) { sc->mlx_mem_type = SYS_RES_IOPORT; sc->mlx_mem_rid = MLX_CFG_BASE0; sc->mlx_mem = bus_alloc_resource(dev, sc->mlx_mem_type, &sc->mlx_mem_rid, 0, ~0, 1, RF_ACTIVE); } break; case MLX_IFTYPE_4: case MLX_IFTYPE_5: sc->mlx_mem_type = SYS_RES_MEMORY; sc->mlx_mem_rid = MLX_CFG_BASE0; sc->mlx_mem = bus_alloc_resource(dev, sc->mlx_mem_type, &sc->mlx_mem_rid, 0, ~0, 1, RF_ACTIVE); break; } if (sc->mlx_mem == NULL) { device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n"); mlx_free(sc); return(ENXIO); } sc->mlx_btag = rman_get_bustag(sc->mlx_mem); sc->mlx_bhandle = rman_get_bushandle(sc->mlx_mem); /* * Allocate the parent bus DMA tag appropriate for PCI. */ error = bus_dma_tag_create(NULL, /* parent */ 1, 0, /* alignment, boundary */ BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */ BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ BUS_DMA_ALLOCNOW, /* flags */ &sc->mlx_parent_dmat); if (error != 0) { device_printf(dev, "can't allocate parent DMA tag\n"); mlx_free(sc); return(ENOMEM); } /* * Do bus-independant initialisation. */ error = mlx_attach(sc); if (error != 0) { mlx_free(sc); return(error); } /* * Start the controller. */ mlx_startup(sc); return(0); }