2 * Product specific probe and attach routines for:
3 * Buslogic BT946, BT948, BT956, BT958 SCSI controllers
5 * Copyright (c) 1995, 1997, 1998 Justin T. Gibbs
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 * without modification, immediately at the beginning of the file.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
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 FOR
21 * 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
29 * $FreeBSD: src/sys/dev/buslogic/bt_pci.c,v 1.11 2000/01/17 12:38:00 nyan Exp $
30 * $DragonFly: src/sys/dev/disk/buslogic/bt_pci.c,v 1.4 2005/06/03 21:56:23 swildner Exp $
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
38 #include <bus/pci/pcireg.h>
39 #include <bus/pci/pcivar.h>
41 #include <machine/bus_memio.h>
42 #include <machine/bus_pio.h>
43 #include <machine/bus.h>
44 #include <machine/resource.h>
46 #include <sys/thread2.h>
50 #define BT_PCI_IOADDR PCIR_MAPS
51 #define BT_PCI_MEMADDR PCIR_MAPS + 4
53 #define PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER 0x1040104Bul
54 #define PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC 0x0140104Bul
55 #define PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT 0x8130104Bul
58 bt_pci_alloc_resources(device_t dev)
60 int command, type = 0, rid, zero;
61 struct resource *regs = 0;
62 struct resource *irq = 0;
64 command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1);
66 /* XXX Memory Mapped I/O seems to cause problems */
67 if (command & PCIM_CMD_MEMEN) {
68 type = SYS_RES_MEMORY;
70 regs = bus_alloc_resource(dev, type, &rid,
74 if (!regs && (command & PCIM_CMD_PORTEN)) {
75 type = SYS_RES_IOPORT;
77 regs = bus_alloc_resource(dev, type, &rid,
85 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &zero,
86 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
88 bus_release_resource(dev, type, rid, regs);
92 bt_init_softc(dev, regs, irq, 0);
98 bt_pci_release_resources(device_t dev)
100 struct bt_softc *bt = device_get_softc(dev);
103 /* XXX can't cope with memory registers anyway */
104 bus_release_resource(dev, SYS_RES_IOPORT,
105 BT_PCI_IOADDR, bt->port);
107 bus_release_resource(dev, SYS_RES_IRQ, 0, bt->irq);
112 bt_pci_probe(device_t dev)
114 switch (pci_get_devid(dev)) {
115 case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER:
116 case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC:
118 struct bt_softc *bt = device_get_softc(dev);
119 pci_info_data_t pci_info;
122 error = bt_pci_alloc_resources(dev);
127 * Determine if an ISA compatible I/O port has been
128 * enabled. If so, record the port so it will not
129 * be probed by our ISA probe. If the PCI I/O port
130 * was not set to the compatibility port, disable it.
132 error = bt_cmd(bt, BOP_INQUIRE_PCI_INFO,
133 /*param*/NULL, /*paramlen*/0,
134 (u_int8_t*)&pci_info, sizeof(pci_info),
135 DEFAULT_CMD_TIMEOUT);
137 && pci_info.io_port < BIO_DISABLED) {
138 bt_mark_probed_bio(pci_info.io_port);
139 if (rman_get_start(bt->port) !=
140 bt_iop_from_bio(pci_info.io_port)) {
143 new_addr = BIO_DISABLED;
144 bt_cmd(bt, BOP_MODIFY_IO_ADDR,
146 /*paramlen*/1, /*reply_buf*/NULL,
148 DEFAULT_CMD_TIMEOUT);
151 bt_pci_release_resources(dev);
152 device_set_desc(dev, "Buslogic Multi-Master SCSI Host Adapter");
163 bt_pci_attach(device_t dev)
165 struct bt_softc *bt = device_get_softc(dev);
168 /* Initialize softc */
169 error = bt_pci_alloc_resources(dev);
171 device_printf(dev, "can't allocate resources in bt_pci_attach\n");
175 /* Allocate a dmatag for our CCB DMA maps */
176 /* XXX Should be a child of the PCI bus dma tag */
177 if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0,
178 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
179 /*highaddr*/BUS_SPACE_MAXADDR,
180 /*filter*/NULL, /*filterarg*/NULL,
181 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
182 /*nsegments*/BUS_SPACE_UNRESTRICTED,
183 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
184 /*flags*/0, &bt->parent_dmat) != 0) {
185 bt_pci_release_resources(dev);
190 * Protect ourself from spurrious interrupts during
191 * intialization and attach. We should really rely
192 * on interrupts during attach, but we don't have
193 * access to our interrupts during ISA probes, so until
194 * that changes, we mask our interrupts during attach
199 if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
200 bt_pci_release_resources(dev);
205 error = bt_attach(dev);
209 bt_pci_release_resources(dev);
216 static device_method_t bt_pci_methods[] = {
217 /* Device interface */
218 DEVMETHOD(device_probe, bt_pci_probe),
219 DEVMETHOD(device_attach, bt_pci_attach),
224 static driver_t bt_pci_driver = {
227 sizeof(struct bt_softc),
230 static devclass_t bt_devclass;
232 DRIVER_MODULE(bt, pci, bt_pci_driver, bt_devclass, 0, 0);