2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2000 Matthew N. Dodd <winter@jurai.net>
7 * Copyright (c) 1997 Simon Shapiro
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
40 #include <sys/mutex.h>
43 #include <machine/bus.h>
44 #include <machine/resource.h>
47 #include <dev/pci/pcireg.h>
48 #include <dev/pci/pcivar.h>
50 #include <cam/scsi/scsi_all.h>
52 #include <dev/dpt/dpt.h>
54 #define DPT_VENDOR_ID 0x1044
55 #define DPT_DEVICE_ID 0xa400
57 #define DPT_PCI_IOADDR PCIR_BAR(0) /* I/O Address */
58 #define DPT_PCI_MEMADDR PCIR_BAR(1) /* Mem I/O Address */
60 #define ISA_PRIMARY_WD_ADDRESS 0x1f8
62 static int dpt_pci_probe (device_t);
63 static int dpt_pci_attach (device_t);
66 dpt_pci_probe (device_t dev)
68 if ((pci_get_vendor(dev) == DPT_VENDOR_ID) &&
69 (pci_get_device(dev) == DPT_DEVICE_ID)) {
70 device_set_desc(dev, "DPT Caching SCSI RAID Controller");
71 return (BUS_PROBE_DEFAULT);
77 dpt_pci_attach (device_t dev)
82 dpt = device_get_softc(dev);
87 dpt->io_rid = DPT_PCI_MEMADDR;
88 dpt->io_type = SYS_RES_MEMORY;
89 dpt->io_res = bus_alloc_resource_any(dev, dpt->io_type,
90 &dpt->io_rid, RF_ACTIVE);
92 if (dpt->io_res == NULL) {
93 dpt->io_rid = DPT_PCI_IOADDR;
94 dpt->io_type = SYS_RES_IOPORT;
95 dpt->io_res = bus_alloc_resource_any(dev, dpt->io_type,
96 &dpt->io_rid, RF_ACTIVE);
99 if (dpt->io_res == NULL) {
100 device_printf(dev, "can't allocate register resources\n");
104 dpt->io_offset = 0x10;
107 dpt->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &dpt->irq_rid,
108 RF_ACTIVE | RF_SHAREABLE);
109 if (dpt->irq_res == NULL) {
110 device_printf(dev, "No irq?!\n");
115 /* Ensure busmastering is enabled */
116 pci_enable_busmaster(dev);
118 if (rman_get_start(dpt->io_res) == (ISA_PRIMARY_WD_ADDRESS - 0x10)) {
119 #ifdef DPT_DEBUG_WARN
120 device_printf(dev, "Mapped as an IDE controller. "
121 "Disabling SCSI setup\n");
127 /* Allocate a dmatag representing the capabilities of this attachment */
128 if (bus_dma_tag_create( /* PCI parent */ bus_get_dma_tag(dev),
131 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
132 /* highaddr */ BUS_SPACE_MAXADDR,
134 /* filterarg */ NULL,
135 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
137 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
141 &dpt->parent_dmat) != 0) {
146 if (dpt_init(dpt) != 0) {
151 /* Register with the XPT */
154 if (bus_setup_intr(dev, dpt->irq_res, INTR_TYPE_CAM | INTR_ENTROPY |
155 INTR_MPSAFE, NULL, dpt_intr, dpt, &dpt->ih)) {
156 device_printf(dev, "Unable to register interrupt handler\n");
160 gone_in_dev(dev, 12, "dpt(4) driver");
165 dpt_release_resources(dev);
172 static device_method_t dpt_pci_methods[] = {
173 /* Device interface */
174 DEVMETHOD(device_probe, dpt_pci_probe),
175 DEVMETHOD(device_attach, dpt_pci_attach),
176 DEVMETHOD(device_detach, dpt_detach),
181 static driver_t dpt_pci_driver = {
187 DRIVER_MODULE(dpt, pci, dpt_pci_driver, dpt_devclass, 0, 0);
188 MODULE_DEPEND(dpt, pci, 1, 1, 1);
189 MODULE_DEPEND(dpt, cam, 1, 1, 1);