2 * Copyright (c) 2000 Matthew N. Dodd <winter@jurai.net>
5 * Copyright (c) 1997 Simon Shapiro
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
38 #include <sys/mutex.h>
41 #include <machine/bus_memio.h>
42 #include <machine/bus_pio.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");
77 dpt_pci_attach (device_t dev)
85 dpt = device_get_softc(dev);
87 command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1);
90 if ((command & PCIM_CMD_MEMEN) != 0) {
91 dpt->io_rid = DPT_PCI_MEMADDR;
92 dpt->io_type = SYS_RES_MEMORY;
93 dpt->io_res = bus_alloc_resource_any(dev, dpt->io_type,
94 &dpt->io_rid, RF_ACTIVE);
97 if (dpt->io_res == NULL && (command & PCIM_CMD_PORTEN) != 0) {
98 dpt->io_rid = DPT_PCI_IOADDR;
99 dpt->io_type = SYS_RES_IOPORT;
100 dpt->io_res = bus_alloc_resource_any(dev, dpt->io_type,
101 &dpt->io_rid, RF_ACTIVE);
104 if (dpt->io_res == NULL) {
105 device_printf(dev, "can't allocate register resources\n");
109 dpt->io_offset = 0x10;
112 dpt->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &dpt->irq_rid,
113 RF_ACTIVE | RF_SHAREABLE);
114 if (dpt->irq_res == NULL) {
115 device_printf(dev, "No irq?!\n");
120 /* Ensure busmastering is enabled */
121 command |= PCIM_CMD_BUSMASTEREN;
122 pci_write_config(dev, PCIR_COMMAND, command, /*bytes*/1);
124 if (rman_get_start(dpt->io_res) == (ISA_PRIMARY_WD_ADDRESS - 0x10)) {
125 #ifdef DPT_DEBUG_WARN
126 device_printf(dev, "Mapped as an IDE controller. "
127 "Disabling SCSI setup\n");
135 /* Allocate a dmatag representing the capabilities of this attachment */
136 /* XXX Should be a child of the PCI bus dma tag */
137 if (bus_dma_tag_create( /* parent */ NULL,
140 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
141 /* highaddr */ BUS_SPACE_MAXADDR,
143 /* filterarg */ NULL,
144 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
146 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
148 /* lockfunc */ busdma_lock_mutex,
149 /* lockarg */ &Giant,
150 &dpt->parent_dmat) != 0) {
158 if (dpt_init(dpt) != 0) {
163 /* Register with the XPT */
168 if (bus_setup_intr(dev, dpt->irq_res, INTR_TYPE_CAM | INTR_ENTROPY,
169 dpt_intr, dpt, &dpt->ih)) {
170 device_printf(dev, "Unable to register interrupt handler\n");
178 dpt_release_resources(dev);
185 static device_method_t dpt_pci_methods[] = {
186 /* Device interface */
187 DEVMETHOD(device_probe, dpt_pci_probe),
188 DEVMETHOD(device_attach, dpt_pci_attach),
189 DEVMETHOD(device_detach, dpt_detach),
194 static driver_t dpt_pci_driver = {
200 DRIVER_MODULE(dpt, pci, dpt_pci_driver, dpt_devclass, 0, 0);