2 * Copyright 2004 by Peter Grehan. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
32 * Mac 'Kauai' PCI ATA controller
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
40 #include <sys/malloc.h>
42 #include <sys/taskqueue.h>
44 #include <machine/stdarg.h>
45 #include <machine/resource.h>
46 #include <machine/bus.h>
49 #include <dev/ata/ata-all.h>
51 #include <dev/ofw/openfirm.h>
53 #include <dev/pci/pcivar.h>
54 #include <dev/pci/pcireg.h>
56 #define ATA_KAUAI_REGOFFSET 0x2000
59 * Offset to alt-control register from base
61 #define ATA_KAUAI_ALTOFFSET (ATA_KAUAI_REGOFFSET + 0x160)
64 * Define the gap between registers
66 #define ATA_KAUAI_REGGAP 16
69 * Define the kauai pci bus attachment.
71 static int ata_kauai_probe(device_t dev);
73 static device_method_t ata_kauai_methods[] = {
74 /* Device interface */
75 DEVMETHOD(device_probe, ata_kauai_probe),
76 DEVMETHOD(device_attach, ata_attach),
77 DEVMETHOD(device_detach, bus_generic_detach),
78 DEVMETHOD(device_shutdown, bus_generic_shutdown),
79 DEVMETHOD(device_suspend, bus_generic_suspend),
80 DEVMETHOD(device_resume, bus_generic_resume),
85 static driver_t ata_kauai_driver = {
88 sizeof(struct ata_channel),
91 DRIVER_MODULE(ata, pci, ata_kauai_driver, ata_devclass, 0, 0);
94 ata_kauai_locknoop(struct ata_channel *ch, int type)
101 ata_kauai_setmode(struct ata_device *atadev, int mode)
103 atadev->mode = ATA_PIO;
108 * PCI ID search table
110 static struct kauai_pci_dev {
113 } kauai_pci_devlist[] = {
114 { 0x0033106b, "Uninorth2 Kauai ATA Controller" },
115 { 0x003b106b, "Intrepid Kauai ATA Controller" },
116 { 0x0043106b, "K2 Kauai ATA Controller" },
121 ata_kauai_probe(device_t dev)
123 struct ata_channel *ch;
124 struct resource *mem;
125 u_long startp, countp;
127 int i, found, rid, status;
130 devid = pci_get_devid(dev);
131 for (i = 0; kauai_pci_devlist[i].kpd_desc != NULL; i++) {
132 if (devid == kauai_pci_devlist[i].kpd_devid) {
134 device_set_desc(dev, kauai_pci_devlist[i].kpd_desc);
142 * This device seems to ignore writes to the interrupt
143 * config register, resulting in interrupt resources
144 * not being attached. If this is the case, use
145 * Open Firmware to determine the irq, and then attach
146 * the resource. This allows the ATA common code to
149 status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp, &countp);
150 if (status == ENOENT) {
154 * Aargh, hideous hack until ofw pci intr routine is
158 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
163 status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp,
165 if (status == ENOENT ||
167 printf("kauai irq not set!\n");
172 ch = device_get_softc(dev);
173 bzero(ch, sizeof(struct ata_channel));
176 mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
178 device_printf(dev, "could not allocate memory\n");
183 * Set up the resource vectors
185 for (i = ATA_DATA; i <= ATA_STATUS; i++) {
186 ch->r_io[i].res = mem;
187 ch->r_io[i].offset = i*ATA_KAUAI_REGGAP + ATA_KAUAI_REGOFFSET;
189 ch->r_io[ATA_ALTSTAT].res = mem;
190 ch->r_io[ATA_ALTSTAT].offset = ATA_KAUAI_ALTOFFSET;
193 ch->flags |= ATA_USE_16BIT|ATA_NO_SLAVE;
194 ch->locking = ata_kauai_locknoop;
195 ch->device[MASTER].setmode = ata_kauai_setmode;
196 ch->device[SLAVE].setmode = ata_kauai_setmode;
199 return (ata_probe(dev));