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>
52 #include <dev/ofw/openfirm.h>
54 #include <dev/pci/pcivar.h>
55 #include <dev/pci/pcireg.h>
57 #define ATA_KAUAI_REGOFFSET 0x2000
60 * Offset to alt-control register from base
62 #define ATA_KAUAI_ALTOFFSET (ATA_KAUAI_REGOFFSET + 0x160)
65 * Define the gap between registers
67 #define ATA_KAUAI_REGGAP 16
70 * Define the kauai pci bus attachment.
72 static int ata_kauai_probe(device_t dev);
73 static void ata_kauai_setmode(device_t parent, device_t dev);
75 static device_method_t ata_kauai_methods[] = {
76 /* Device interface */
77 DEVMETHOD(device_probe, ata_kauai_probe),
78 DEVMETHOD(device_attach, ata_attach),
79 DEVMETHOD(device_detach, bus_generic_detach),
80 DEVMETHOD(device_shutdown, bus_generic_shutdown),
81 DEVMETHOD(device_suspend, bus_generic_suspend),
82 DEVMETHOD(device_resume, bus_generic_resume),
85 DEVMETHOD(ata_setmode, ata_kauai_setmode),
89 static driver_t ata_kauai_driver = {
92 sizeof(struct ata_channel),
95 DRIVER_MODULE(ata, pci, ata_kauai_driver, ata_devclass, 0, 0);
96 MODULE_DEPEND(ata, ata, 1, 1, 1);
101 static struct kauai_pci_dev {
104 } kauai_pci_devlist[] = {
105 { 0x0033106b, "Uninorth2 Kauai ATA Controller" },
106 { 0x003b106b, "Intrepid Kauai ATA Controller" },
107 { 0x0043106b, "K2 Kauai ATA Controller" },
112 ata_kauai_probe(device_t dev)
114 struct ata_channel *ch;
115 struct resource *mem;
116 u_long startp, countp;
118 int i, found, rid, status;
121 devid = pci_get_devid(dev);
122 for (i = 0; kauai_pci_devlist[i].kpd_desc != NULL; i++) {
123 if (devid == kauai_pci_devlist[i].kpd_devid) {
125 device_set_desc(dev, kauai_pci_devlist[i].kpd_desc);
133 * This device seems to ignore writes to the interrupt
134 * config register, resulting in interrupt resources
135 * not being attached. If this is the case, use
136 * Open Firmware to determine the irq, and then attach
137 * the resource. This allows the ATA common code to
140 status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp, &countp);
141 if (status == ENOENT) {
145 * Aargh, hideous hack until ofw pci intr routine is
149 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
154 status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp,
156 if (status == ENOENT ||
158 printf("kauai irq not set!\n");
163 ch = device_get_softc(dev);
164 bzero(ch, sizeof(struct ata_channel));
167 mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
169 device_printf(dev, "could not allocate memory\n");
174 * Set up the resource vectors
176 for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
177 ch->r_io[i].res = mem;
178 ch->r_io[i].offset = i*ATA_KAUAI_REGGAP + ATA_KAUAI_REGOFFSET;
180 ch->r_io[ATA_CONTROL].res = mem;
181 ch->r_io[ATA_CONTROL].offset = ATA_KAUAI_ALTOFFSET;
182 ata_default_registers(dev);
185 ch->flags |= ATA_USE_16BIT;
188 return (ata_probe(dev));
192 ata_kauai_setmode(device_t parent, device_t dev)
194 struct ata_device *atadev = device_get_softc(dev);
196 /* TODO bang kauai speed register */
197 atadev->mode = ATA_PIO;