FreeBSD-5.3/sys/dev/mlx/mlx_pci.c
/*-
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/mlx/mlx_pci.c,v 1.19 2004/05/30 20:08:36 phk Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <geom/geom_disk.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/mlx/mlx_compat.h>
#include <dev/mlx/mlxio.h>
#include <dev/mlx/mlxvar.h>
#include <dev/mlx/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),
{ 0, 0 }
};
static driver_t mlx_pci_driver = {
"mlx",
mlx_methods,
sizeof(struct mlx_softc)
};
DRIVER_MODULE(mlx, pci, mlx_pci_driver, mlx_devclass, 0, 0);
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_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, 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_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, 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_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, 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 */
NULL, /* lockfunc */
NULL, /* lockarg */
&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);
}