2 * Copyright (c) 1999 Michael Smith
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
26 * $FreeBSD: src/sys/dev/mlx/mlx_pci.c,v 1.4.2.5 2001/06/25 04:37:51 msmith Exp $
27 * $DragonFly: src/sys/dev/raid/mlx/mlx_pci.c,v 1.3 2003/08/07 21:17:09 dillon Exp $
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
36 #include <sys/devicestat.h>
39 #include <machine/bus_memio.h>
40 #include <machine/bus_pio.h>
41 #include <machine/bus.h>
42 #include <machine/resource.h>
45 #include <bus/pci/pcireg.h>
46 #include <bus/pci/pcivar.h>
48 #include "mlx_compat.h"
53 static int mlx_pci_probe(device_t dev);
54 static int mlx_pci_attach(device_t dev);
56 static device_method_t mlx_methods[] = {
57 /* Device interface */
58 DEVMETHOD(device_probe, mlx_pci_probe),
59 DEVMETHOD(device_attach, mlx_pci_attach),
60 DEVMETHOD(device_detach, mlx_detach),
61 DEVMETHOD(device_shutdown, mlx_shutdown),
62 DEVMETHOD(device_suspend, mlx_suspend),
63 DEVMETHOD(device_resume, mlx_resume),
65 DEVMETHOD(bus_print_child, bus_generic_print_child),
66 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
70 static driver_t mlx_pci_driver = {
73 sizeof(struct mlx_softc)
76 DRIVER_MODULE(mlx, pci, mlx_pci_driver, mlx_devclass, 0, 0);
86 } mlx_identifiers[] = {
87 {0x1069, 0x0001, 0x0000, 0x0000, MLX_IFTYPE_2, "Mylex version 2 RAID interface"},
88 {0x1069, 0x0002, 0x0000, 0x0000, MLX_IFTYPE_3, "Mylex version 3 RAID interface"},
89 {0x1069, 0x0010, 0x0000, 0x0000, MLX_IFTYPE_4, "Mylex version 4 RAID interface"},
90 {0x1011, 0x1065, 0x1069, 0x0020, MLX_IFTYPE_5, "Mylex version 5 RAID interface"},
95 mlx_pci_probe(device_t dev)
101 for (m = mlx_identifiers; m->vendor != 0; m++) {
102 if ((m->vendor == pci_get_vendor(dev)) &&
103 (m->device == pci_get_device(dev)) &&
104 ((m->subvendor == 0) || ((m->subvendor == pci_get_subvendor(dev)) &&
105 (m->subdevice == pci_get_subdevice(dev))))) {
107 device_set_desc(dev, m->desc);
108 return(-10); /* allow room to be overridden */
115 mlx_pci_attach(device_t dev)
117 struct mlx_softc *sc;
124 * Make sure we are going to be able to talk to this board.
126 command = pci_read_config(dev, PCIR_COMMAND, 2);
127 if ((command & PCIM_CMD_MEMEN) == 0) {
128 device_printf(dev, "memory window not available\n");
131 /* force the busmaster enable bit on */
132 command |= PCIM_CMD_BUSMASTEREN;
133 pci_write_config(dev, PCIR_COMMAND, command, 2);
138 sc = device_get_softc(dev);
139 bzero(sc, sizeof(*sc));
143 * Work out what sort of adapter this is (we need to know this in order
144 * to map the appropriate interface resources).
147 for (i = 0; mlx_identifiers[i].vendor != 0; i++) {
148 if ((mlx_identifiers[i].vendor == pci_get_vendor(dev)) &&
149 (mlx_identifiers[i].device == pci_get_device(dev))) {
150 sc->mlx_iftype = mlx_identifiers[i].iftype;
154 if (sc->mlx_iftype == 0) /* shouldn't happen */
158 * Allocate the PCI register window.
161 /* type 2/3 adapters have an I/O region we don't prefer at base 0 */
162 switch(sc->mlx_iftype) {
165 sc->mlx_mem_type = SYS_RES_MEMORY;
166 sc->mlx_mem_rid = MLX_CFG_BASE1;
167 sc->mlx_mem = bus_alloc_resource(dev, sc->mlx_mem_type, &sc->mlx_mem_rid, 0, ~0, 1, 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(dev, sc->mlx_mem_type, &sc->mlx_mem_rid, 0, ~0, 1, RF_ACTIVE);
176 sc->mlx_mem_type = SYS_RES_MEMORY;
177 sc->mlx_mem_rid = MLX_CFG_BASE0;
178 sc->mlx_mem = bus_alloc_resource(dev, sc->mlx_mem_type, &sc->mlx_mem_rid, 0, ~0, 1, RF_ACTIVE);
181 if (sc->mlx_mem == NULL) {
182 device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n");
186 sc->mlx_btag = rman_get_bustag(sc->mlx_mem);
187 sc->mlx_bhandle = rman_get_bushandle(sc->mlx_mem);
190 * Allocate the parent bus DMA tag appropriate for PCI.
192 error = bus_dma_tag_create(NULL, /* parent */
193 1, 0, /* alignment, boundary */
194 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
195 BUS_SPACE_MAXADDR, /* highaddr */
196 NULL, NULL, /* filter, filterarg */
197 MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */
198 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
199 BUS_DMA_ALLOCNOW, /* flags */
200 &sc->mlx_parent_dmat);
202 device_printf(dev, "can't allocate parent DMA tag\n");
208 * Do bus-independant initialisation.
210 error = mlx_attach(sc);
217 * Start the controller.