mlx_pci.c revision 58188
151973Smsmith/*- 251973Smsmith * Copyright (c) 1999 Michael Smith 351973Smsmith * All rights reserved. 451973Smsmith * 551973Smsmith * Redistribution and use in source and binary forms, with or without 651973Smsmith * modification, are permitted provided that the following conditions 751973Smsmith * are met: 851973Smsmith * 1. Redistributions of source code must retain the above copyright 951973Smsmith * notice, this list of conditions and the following disclaimer. 1051973Smsmith * 2. Redistributions in binary form must reproduce the above copyright 1151973Smsmith * notice, this list of conditions and the following disclaimer in the 1251973Smsmith * documentation and/or other materials provided with the distribution. 1351973Smsmith * 1451973Smsmith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1551973Smsmith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1651973Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1751973Smsmith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1851973Smsmith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1951973Smsmith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2051973Smsmith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2151973Smsmith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2251973Smsmith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2351973Smsmith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2451973Smsmith * SUCH DAMAGE. 2551973Smsmith * 2651973Smsmith * $FreeBSD: head/sys/dev/mlx/mlx_pci.c 58188 2000-03-18 02:01:37Z msmith $ 2751973Smsmith */ 2851973Smsmith 2951973Smsmith#include <sys/param.h> 3051973Smsmith#include <sys/systm.h> 3151973Smsmith#include <sys/malloc.h> 3251973Smsmith#include <sys/kernel.h> 3351973Smsmith 3451973Smsmith#include <sys/bus.h> 3551973Smsmith#include <sys/buf.h> 3651973Smsmith#include <sys/conf.h> 3751973Smsmith#include <sys/devicestat.h> 3851973Smsmith#include <sys/disk.h> 3951973Smsmith 4051973Smsmith#include <machine/bus_memio.h> 4151973Smsmith#include <machine/bus_pio.h> 4251973Smsmith#include <machine/bus.h> 4351973Smsmith#include <machine/resource.h> 4451973Smsmith#include <sys/rman.h> 4551973Smsmith 4651973Smsmith#include <pci/pcireg.h> 4751973Smsmith#include <pci/pcivar.h> 4851973Smsmith 4951973Smsmith#include <dev/mlx/mlxio.h> 5051973Smsmith#include <dev/mlx/mlxvar.h> 5152544Smsmith#include <dev/mlx/mlxreg.h> 5251973Smsmith 5351973Smsmithstatic int mlx_pci_probe(device_t dev); 5451973Smsmithstatic int mlx_pci_attach(device_t dev); 5551973Smsmith 5651973Smsmithstatic device_method_t mlx_methods[] = { 5751973Smsmith /* Device interface */ 5851973Smsmith DEVMETHOD(device_probe, mlx_pci_probe), 5951973Smsmith DEVMETHOD(device_attach, mlx_pci_attach), 6051973Smsmith DEVMETHOD(device_detach, mlx_detach), 6151973Smsmith DEVMETHOD(device_shutdown, mlx_shutdown), 6251973Smsmith DEVMETHOD(device_suspend, mlx_suspend), 6351973Smsmith DEVMETHOD(device_resume, mlx_resume), 6451973Smsmith 6551973Smsmith DEVMETHOD(bus_print_child, bus_generic_print_child), 6651973Smsmith DEVMETHOD(bus_driver_added, bus_generic_driver_added), 6751973Smsmith { 0, 0 } 6851973Smsmith}; 6951973Smsmith 7051973Smsmithstatic driver_t mlx_pci_driver = { 7151973Smsmith "mlx", 7251973Smsmith mlx_methods, 7351973Smsmith sizeof(struct mlx_softc) 7451973Smsmith}; 7551973Smsmith 7651973SmsmithDRIVER_MODULE(mlx, pci, mlx_pci_driver, mlx_devclass, 0, 0); 7751973Smsmith 7854419Smsmithstruct mlx_ident 7951973Smsmith{ 8051973Smsmith u_int16_t vendor; 8151973Smsmith u_int16_t device; 8254419Smsmith u_int16_t subvendor; 8354419Smsmith u_int16_t subdevice; 8451973Smsmith int iftype; 8551973Smsmith char *desc; 8651973Smsmith} mlx_identifiers[] = { 8758188Smsmith {0x1069, 0x0001, 0x0000, 0x0000, MLX_IFTYPE_2, "Mylex version 2 RAID interface"}, 8854419Smsmith {0x1069, 0x0002, 0x0000, 0x0000, MLX_IFTYPE_3, "Mylex version 3 RAID interface"}, 8954419Smsmith {0x1069, 0x0010, 0x0000, 0x0000, MLX_IFTYPE_4, "Mylex version 4 RAID interface"}, 9054419Smsmith {0x1011, 0x1065, 0x1069, 0x0020, MLX_IFTYPE_5, "Mylex version 5 RAID interface"}, 9154419Smsmith {0, 0, 0, 0, 0, 0} 9251973Smsmith}; 9351973Smsmith 9451973Smsmithstatic int 9551973Smsmithmlx_pci_probe(device_t dev) 9651973Smsmith{ 9754419Smsmith struct mlx_ident *m; 9851973Smsmith 9958188Smsmith debug_called(1); 10051973Smsmith 10154419Smsmith for (m = mlx_identifiers; m->vendor != 0; m++) { 10254419Smsmith if ((m->vendor == pci_get_vendor(dev)) && 10354419Smsmith (m->device == pci_get_device(dev)) && 10454419Smsmith ((m->subvendor == 0) || ((m->subvendor == pci_get_subvendor(dev)) && 10554419Smsmith (m->subdevice == pci_get_subdevice(dev))))) { 10651973Smsmith 10754419Smsmith device_set_desc(dev, m->desc); 10851973Smsmith return(0); 10951973Smsmith } 11051973Smsmith } 11151973Smsmith return(ENXIO); 11251973Smsmith} 11351973Smsmith 11451973Smsmithstatic int 11551973Smsmithmlx_pci_attach(device_t dev) 11651973Smsmith{ 11751973Smsmith struct mlx_softc *sc; 11851973Smsmith int i, rid, error; 11951973Smsmith u_int32_t command; 12051973Smsmith 12158188Smsmith debug_called(1); 12251973Smsmith 12351973Smsmith /* 12451973Smsmith * Make sure we are going to be able to talk to this board. 12551973Smsmith */ 12658188Smsmith command = pci_read_config(dev, PCIR_COMMAND, 2); 12751973Smsmith if ((command & PCIM_CMD_MEMEN) == 0) { 12851973Smsmith device_printf(dev, "memory window not available\n"); 12951973Smsmith return(ENXIO); 13051973Smsmith } 13158188Smsmith /* force the busmaster enable bit on */ 13258188Smsmith command |= PCIM_CMD_BUSMASTEREN; 13358188Smsmith pci_write_config(dev, PCIR_COMMAND, command, 2); 13451973Smsmith 13551973Smsmith /* 13651973Smsmith * Initialise softc. 13751973Smsmith */ 13851973Smsmith sc = device_get_softc(dev); 13951973Smsmith bzero(sc, sizeof(*sc)); 14051973Smsmith sc->mlx_dev = dev; 14151973Smsmith 14251973Smsmith /* 14351973Smsmith * Work out what sort of adapter this is (we need to know this in order 14451973Smsmith * to map the appropriate interface resources). 14551973Smsmith */ 14651973Smsmith sc->mlx_iftype = 0; 14751973Smsmith for (i = 0; mlx_identifiers[i].vendor != 0; i++) { 14851973Smsmith if ((mlx_identifiers[i].vendor == pci_get_vendor(dev)) && 14951973Smsmith (mlx_identifiers[i].device == pci_get_device(dev))) { 15051973Smsmith sc->mlx_iftype = mlx_identifiers[i].iftype; 15151973Smsmith break; 15251973Smsmith } 15351973Smsmith } 15451973Smsmith if (sc->mlx_iftype == 0) /* shouldn't happen */ 15551973Smsmith return(ENXIO); 15651973Smsmith 15751973Smsmith /* 15851973Smsmith * Allocate the PCI register window. 15951973Smsmith */ 16051973Smsmith 16158188Smsmith /* type 2/3 adapters have an I/O region we don't use at base 0 */ 16258188Smsmith switch(sc->mlx_iftype) { 16358188Smsmith case MLX_IFTYPE_2: 16458188Smsmith case MLX_IFTYPE_3: 16558188Smsmith rid = MLX_CFG_BASE1; 16658188Smsmith break; 16758188Smsmith case MLX_IFTYPE_4: 16858188Smsmith case MLX_IFTYPE_5: 16958188Smsmith rid = MLX_CFG_BASE0; 17058188Smsmith break; 17158188Smsmith } 17251973Smsmith sc->mlx_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE); 17351973Smsmith if (sc->mlx_mem == NULL) { 17451973Smsmith device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n"); 17551973Smsmith mlx_free(sc); 17651973Smsmith return(ENXIO); 17751973Smsmith } 17851973Smsmith sc->mlx_btag = rman_get_bustag(sc->mlx_mem); 17951973Smsmith sc->mlx_bhandle = rman_get_bushandle(sc->mlx_mem); 18051973Smsmith 18151973Smsmith /* 18251973Smsmith * Allocate the parent bus DMA tag appropriate for PCI. 18351973Smsmith */ 18451973Smsmith error = bus_dma_tag_create(NULL, /* parent */ 18551973Smsmith 1, 0, /* alignment, boundary */ 18651973Smsmith BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 18751973Smsmith BUS_SPACE_MAXADDR, /* highaddr */ 18851973Smsmith NULL, NULL, /* filter, filterarg */ 18958188Smsmith MAXBSIZE, MLX_NSEG_NEW, /* maxsize, nsegments */ 19051973Smsmith BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 19151973Smsmith BUS_DMA_ALLOCNOW, /* flags */ 19251973Smsmith &sc->mlx_parent_dmat); 19351973Smsmith if (error != 0) { 19451973Smsmith device_printf(dev, "can't allocate parent DMA tag\n"); 19551973Smsmith mlx_free(sc); 19651973Smsmith return(ENOMEM); 19751973Smsmith } 19851973Smsmith 19951973Smsmith /* 20051973Smsmith * Do bus-independant initialisation. 20151973Smsmith */ 20251973Smsmith error = mlx_attach(sc); 20351973Smsmith if (error != 0) { 20451973Smsmith mlx_free(sc); 20551973Smsmith return(error); 20651973Smsmith } 20751973Smsmith 20851973Smsmith /* 20951973Smsmith * Start the controller. 21051973Smsmith */ 21151973Smsmith mlx_startup(sc); 21251973Smsmith return(0); 21351973Smsmith} 214