2 * Copyright (c) 1998 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/i386/isa/isa_compat.c,v 1.18.2.1 2001/05/17 23:05:06 imp Exp $
27 * $DragonFly: src/sys/bus/isa/i386/isa_compat.c,v 1.12 2006/12/22 23:12:16 swildner Exp $
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
34 #include <sys/malloc.h>
35 #include <sys/module.h>
38 #include <machine/vmparam.h>
41 #include <machine/pmap.h>
42 #include <machine/md_var.h>
44 #include "../isavar.h"
45 #include "isa_compat.h"
46 #include "isa_device.h"
48 struct isa_compat_resources {
49 struct resource *ports;
50 struct resource *memory;
55 struct isa_compat_driver {
57 struct old_isa_driver *op;
61 isa_compat_nextid(void)
63 static int id = 2; /* id_id of -1, 0 and 1 are "used" */
69 isa_compat_alloc_resources(device_t dev, struct isa_compat_resources *res)
74 if (bus_get_resource(dev, SYS_RES_IOPORT, 0,
75 &start, &count) == 0) {
77 res->ports = bus_alloc_resource(dev, SYS_RES_IOPORT,
80 if (res->ports == NULL && bootverbose)
81 kprintf("isa_compat: didn't get ports for %s\n",
82 device_get_name(dev));
86 if (bus_get_resource(dev, SYS_RES_MEMORY, 0,
90 res->memory = bus_alloc_resource(dev, SYS_RES_MEMORY,
93 if (res->memory == NULL && bootverbose)
94 kprintf("isa_compat: didn't get memory for %s\n",
95 device_get_name(dev));
99 if (bus_get_resource(dev, SYS_RES_DRQ, 0,
100 &start, &count) == 0) {
102 res->drq = bus_alloc_resource(dev, SYS_RES_DRQ,
105 if (res->drq == NULL && bootverbose)
106 kprintf("isa_compat: didn't get drq for %s\n",
107 device_get_name(dev));
111 if (bus_get_resource(dev, SYS_RES_IRQ, 0,
112 &start, &count) == 0) {
114 res->irq = bus_alloc_resource(dev, SYS_RES_IRQ,
116 RF_SHAREABLE | RF_ACTIVE);
117 if (res->irq == NULL && bootverbose)
118 kprintf("isa_compat: didn't get irq for %s\n",
119 device_get_name(dev));
125 isa_compat_release_resources(device_t dev, struct isa_compat_resources *res)
128 bus_release_resource(dev, SYS_RES_IOPORT, 0, res->ports);
132 bus_release_resource(dev, SYS_RES_MEMORY, 0, res->memory);
136 bus_release_resource(dev, SYS_RES_DRQ, 0, res->drq);
140 bus_release_resource(dev, SYS_RES_IRQ, 0, res->irq);
145 #define irqmask(x) ((x) < 0 ? 0 : (1 << (x)))
148 isa_compat_probe(device_t dev)
150 struct isa_device *dvp = device_get_softc(dev);
151 struct isa_compat_resources res;
152 struct old_isa_driver *op;
156 if (isa_get_vendorid(dev))
159 bzero(&res, sizeof(res));
161 * Fill in the isa_device fields.
163 op = ((struct isa_compat_driver *)device_get_driver(dev))->op;
164 dvp->id_id = isa_compat_nextid();
165 dvp->id_driver = op->driver;
166 if (bus_get_resource(dev, SYS_RES_IOPORT, 0,
167 &start, &count) == 0)
168 dvp->id_iobase = start;
171 if (bus_get_resource(dev, SYS_RES_IRQ, 0,
172 &start, &count) == 0)
173 dvp->id_irq = irqmask(start);
176 if (bus_get_resource(dev, SYS_RES_DRQ, 0,
177 &start, &count) == 0)
181 if (bus_get_resource(dev, SYS_RES_MEMORY,
182 0, &start, &count) == 0) {
183 dvp->id_maddr = (void *)(uintptr_t)start;
184 dvp->id_msize = count;
186 dvp->id_maddr = NULL;
189 dvp->id_unit = device_get_unit(dev);
190 dvp->id_flags = device_get_flags(dev);
191 dvp->id_enabled = device_is_enabled(dev); /* XXX unused */
192 dvp->id_device = dev;
195 * Do the wrapped probe.
197 if (dvp->id_driver->probe) {
200 struct isa_device old;
202 isa_compat_alloc_resources(dev, &res);
204 maddr = rman_get_virtual(res.memory);
207 dvp->id_maddr = maddr;
209 portsize = dvp->id_driver->probe(dvp);
210 isa_compat_release_resources(dev, &res);
212 if (portsize > 0 || dvp->id_iobase != old.id_iobase)
213 bus_set_resource(dev, SYS_RES_IOPORT,
214 0, dvp->id_iobase, portsize);
215 if (dvp->id_irq != old.id_irq)
216 bus_set_resource(dev, SYS_RES_IRQ, 0,
217 ffs(dvp->id_irq) - 1, 1);
218 if (dvp->id_drq != old.id_drq)
219 bus_set_resource(dev, SYS_RES_DRQ, 0,
221 if (dvp->id_maddr != old.id_maddr
222 || dvp->id_msize != old.id_msize) {
223 maddr = dvp->id_maddr;
225 bus_set_resource(dev,
231 bus_delete_resource(dev,
242 isa_compat_attach(device_t dev)
244 struct isa_device *dvp = device_get_softc(dev);
245 struct isa_compat_resources res;
248 bzero(&res, sizeof(res));
249 isa_compat_alloc_resources(dev, &res);
250 if (dvp->id_driver->attach)
251 dvp->id_driver->attach(dvp);
252 if (res.irq && dvp->id_irq && dvp->id_intr) {
253 struct old_isa_driver *op;
256 op = ((struct isa_compat_driver *)device_get_driver(dev))->op;
257 error = BUS_SETUP_INTR(device_get_parent(dev), dev,
260 (void *)(uintptr_t)dvp->id_unit,
263 kprintf("isa_compat_attach: failed to setup intr: %d\n",
266 device_printf(dev, "driver is using old-style compatibility shims\n");
270 static device_method_t isa_compat_methods[] = {
271 /* Device interface */
272 DEVMETHOD(device_probe, isa_compat_probe),
273 DEVMETHOD(device_attach, isa_compat_attach),
279 * Create a new style driver around each old isa driver.
282 isa_wrap_old_drivers(void)
285 struct old_isa_driver *op;
286 devclass_t isa_devclass = devclass_find("isa");
287 struct isa_compat_driver *driver;
289 for (i = 0, op = &old_drivers[0]; i < old_drivers_count; i++, op++) {
290 driver = kmalloc(sizeof(struct isa_compat_driver), M_DEVBUF, M_WAITOK | M_ZERO);
291 driver->driver.name = op->driver->name;
292 driver->driver.methods = isa_compat_methods;
293 driver->driver.size = sizeof(struct isa_device);
295 if (op->driver->sensitive_hw)
296 resource_set_int(op->driver->name, -1, "sensitive", 1);
297 devclass_add_driver(isa_devclass, (driver_t *)driver);