da8bb3a3bf
this version include: - Support for version 2.x firmware (2.42 or later recommended). This means we are the only open-source driver supporting these adapters. This code has only been tested on a Digital KZPCA adapter in an Alpha system, but is believed to be correct. NOTE: EISA adapters are not yet supported. - Support the BIOS/Firmware initialisation handshake protocol. This allows the driver to bring the card up to operational state even if the BIOS can't be run (eg. if it's an x86 BIOS in an Alpha system). - A working command pasthrough interface. This allows a user-space configuration tool (under development) to issue arbitrary commands to the controller or to devices in the system.
214 lines
6.0 KiB
C
214 lines
6.0 KiB
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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kernel.h>
|
|
|
|
#include <sys/bus.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/devicestat.h>
|
|
#include <sys/disk.h>
|
|
|
|
#include <machine/bus_memio.h>
|
|
#include <machine/bus_pio.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <pci/pcireg.h>
|
|
#include <pci/pcivar.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(0);
|
|
}
|
|
}
|
|
return(ENXIO);
|
|
}
|
|
|
|
static int
|
|
mlx_pci_attach(device_t dev)
|
|
{
|
|
struct mlx_softc *sc;
|
|
int i, rid, 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 use at base 0 */
|
|
switch(sc->mlx_iftype) {
|
|
case MLX_IFTYPE_2:
|
|
case MLX_IFTYPE_3:
|
|
rid = MLX_CFG_BASE1;
|
|
break;
|
|
case MLX_IFTYPE_4:
|
|
case MLX_IFTYPE_5:
|
|
rid = MLX_CFG_BASE0;
|
|
break;
|
|
}
|
|
sc->mlx_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE);
|
|
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_NEW, /* 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);
|
|
}
|