1: /*-
2: * Copyright (c) 1998 Doug Rabson
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
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.
13: *
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
24: * SUCH DAMAGE.
25: *
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 1.6 2003/11/22 19:43:25 asmodai Exp $
28: */
29:
30: #include <sys/param.h>
31: #include <sys/systm.h>
32: #include <sys/kernel.h>
33: #include <sys/bus.h>
34: #include <sys/malloc.h>
35: #include <sys/module.h>
36: #include <machine/bus.h>
37: #include <sys/rman.h>
38:
39: #include <machine/vmparam.h>
40: #include <vm/vm.h>
41: #include <vm/pmap.h>
42: #include <machine/pmap.h>
43: #include <machine/md_var.h>
44:
45: #include <machine/resource.h>
46: #include "../isavar.h"
47: #include "isa_compat.h"
48: #include "isa_device.h"
49:
50: struct isa_compat_resources {
51: struct resource *ports;
52: struct resource *memory;
53: struct resource *drq;
54: struct resource *irq;
55: };
56:
57: int
58: isa_compat_nextid(void)
59: {
60: static int id = 2; /* id_id of -1, 0 and 1 are "used" */
61:
62: return id++;
63: }
64:
65: static void
66: isa_compat_alloc_resources(device_t dev, struct isa_compat_resources *res)
67: {
68: int rid;
69: u_long start, count;
70:
71: if (bus_get_resource(dev, SYS_RES_IOPORT, 0,
72: &start, &count) == 0) {
73: rid = 0;
74: res->ports = bus_alloc_resource(dev, SYS_RES_IOPORT,
75: &rid, 0ul, ~0ul, 1,
76: RF_ACTIVE);
77: if (res->ports == NULL && bootverbose)
78: printf("isa_compat: didn't get ports for %s\n",
79: device_get_name(dev));
80: } else
81: res->ports = 0;
82:
83: if (bus_get_resource(dev, SYS_RES_MEMORY, 0,
84: &start, &count) == 0
85: && start != 0) {
86: rid = 0;
87: res->memory = bus_alloc_resource(dev, SYS_RES_MEMORY,
88: &rid, 0ul, ~0ul, 1,
89: RF_ACTIVE);
90: if (res->memory == NULL && bootverbose)
91: printf("isa_compat: didn't get memory for %s\n",
92: device_get_name(dev));
93: } else
94: res->memory = 0;
95:
96: if (bus_get_resource(dev, SYS_RES_DRQ, 0,
97: &start, &count) == 0) {
98: rid = 0;
99: res->drq = bus_alloc_resource(dev, SYS_RES_DRQ,
100: &rid, 0ul, ~0ul, 1,
101: RF_ACTIVE);
102: if (res->drq == NULL && bootverbose)
103: printf("isa_compat: didn't get drq for %s\n",
104: device_get_name(dev));
105: } else
106: res->drq = 0;
107:
108: if (bus_get_resource(dev, SYS_RES_IRQ, 0,
109: &start, &count) == 0) {
110: rid = 0;
111: res->irq = bus_alloc_resource(dev, SYS_RES_IRQ,
112: &rid, 0ul, ~0ul, 1,
113: RF_SHAREABLE | RF_ACTIVE);
114: if (res->irq == NULL && bootverbose)
115: printf("isa_compat: didn't get irq for %s\n",
116: device_get_name(dev));
117: } else
118: res->irq = 0;
119: }
120:
121: static void
122: isa_compat_release_resources(device_t dev, struct isa_compat_resources *res)
123: {
124: if (res->ports) {
125: bus_release_resource(dev, SYS_RES_IOPORT, 0, res->ports);
126: res->ports = 0;
127: }
128: if (res->memory) {
129: bus_release_resource(dev, SYS_RES_MEMORY, 0, res->memory);
130: res->memory = 0;
131: }
132: if (res->drq) {
133: bus_release_resource(dev, SYS_RES_DRQ, 0, res->drq);
134: res->drq = 0;
135: }
136: if (res->irq) {
137: bus_release_resource(dev, SYS_RES_IRQ, 0, res->irq);
138: res->irq = 0;
139: }
140: }
141:
142: #define irqmask(x) ((x) < 0 ? 0 : (1 << (x)))
143:
144: static int
145: isa_compat_probe(device_t dev)
146: {
147: struct isa_device *dvp = device_get_softc(dev);
148: struct isa_compat_resources res;
149: struct old_isa_driver *op;
150: u_long start, count;
151:
152: /* No pnp support */
153: if (isa_get_vendorid(dev))
154: return (ENXIO);
155:
156: bzero(&res, sizeof(res));
157: /*
158: * Fill in the isa_device fields.
159: */
160: op = device_get_driver(dev)->priv;
161: dvp->id_id = isa_compat_nextid();
162: dvp->id_driver = op->driver;
163: if (bus_get_resource(dev, SYS_RES_IOPORT, 0,
164: &start, &count) == 0)
165: dvp->id_iobase = start;
166: else
167: dvp->id_iobase = -1;
168: if (bus_get_resource(dev, SYS_RES_IRQ, 0,
169: &start, &count) == 0)
170: dvp->id_irq = irqmask(start);
171: else
172: dvp->id_irq = 0;
173: if (bus_get_resource(dev, SYS_RES_DRQ, 0,
174: &start, &count) == 0)
175: dvp->id_drq = start;
176: else
177: dvp->id_drq = -1;
178: if (bus_get_resource(dev, SYS_RES_MEMORY,
179: 0, &start, &count) == 0) {
180: dvp->id_maddr = (void *)(uintptr_t)start;
181: dvp->id_msize = count;
182: } else {
183: dvp->id_maddr = NULL;
184: dvp->id_msize = 0;
185: }
186: dvp->id_unit = device_get_unit(dev);
187: dvp->id_flags = device_get_flags(dev);
188: dvp->id_enabled = device_is_enabled(dev); /* XXX unused */
189: dvp->id_device = dev;
190:
191: /*
192: * Do the wrapped probe.
193: */
194: if (dvp->id_driver->probe) {
195: int portsize;
196: void *maddr;
197: struct isa_device old;
198:
199: isa_compat_alloc_resources(dev, &res);
200: if (res.memory)
201: maddr = rman_get_virtual(res.memory);
202: else
203: maddr = 0;
204: dvp->id_maddr = maddr;
205: old = *dvp;
206: portsize = dvp->id_driver->probe(dvp);
207: isa_compat_release_resources(dev, &res);
208: if (portsize != 0) {
209: if (portsize > 0 || dvp->id_iobase != old.id_iobase)
210: bus_set_resource(dev, SYS_RES_IOPORT,
211: 0, dvp->id_iobase, portsize);
212: if (dvp->id_irq != old.id_irq)
213: bus_set_resource(dev, SYS_RES_IRQ, 0,
214: ffs(dvp->id_irq) - 1, 1);
215: if (dvp->id_drq != old.id_drq)
216: bus_set_resource(dev, SYS_RES_DRQ, 0,
217: dvp->id_drq, 1);
218: if (dvp->id_maddr != old.id_maddr
219: || dvp->id_msize != old.id_msize) {
220: maddr = dvp->id_maddr;
221: if (maddr != NULL)
222: bus_set_resource(dev,
223: SYS_RES_MEMORY,
224: 0,
225: kvtop(maddr),
226: dvp->id_msize);
227: else
228: bus_delete_resource(dev,
229: SYS_RES_MEMORY,
230: 0);
231: }
232: return 0;
233: }
234: }
235: return ENXIO;
236: }
237:
238: static int
239: isa_compat_attach(device_t dev)
240: {
241: struct isa_device *dvp = device_get_softc(dev);
242: struct isa_compat_resources res;
243: int error;
244:
245: bzero(&res, sizeof(res));
246: isa_compat_alloc_resources(dev, &res);
247: if (dvp->id_driver->attach)
248: dvp->id_driver->attach(dvp);
249: if (res.irq && dvp->id_irq && dvp->id_intr) {
250: struct old_isa_driver *op;
251: void *ih;
252:
253: op = device_get_driver(dev)->priv;
254: error = BUS_SETUP_INTR(device_get_parent(dev), dev,
255: res.irq, op->type,
256: dvp->id_intr,
257: (void *)(uintptr_t)dvp->id_unit,
258: &ih);
259: if (error)
260: printf("isa_compat_attach: failed to setup intr: %d\n",
261: error);
262: }
263: device_printf(dev, "driver is using old-style compatibility shims\n");
264: return 0;
265: }
266:
267: static device_method_t isa_compat_methods[] = {
268: /* Device interface */
269: DEVMETHOD(device_probe, isa_compat_probe),
270: DEVMETHOD(device_attach, isa_compat_attach),
271:
272: { 0, 0 }
273: };
274:
275: /*
276: * Create a new style driver around each old isa driver.
277: */
278: void
279: isa_wrap_old_drivers(void)
280: {
281: int i;
282: struct old_isa_driver *op;
283: devclass_t isa_devclass = devclass_find("isa");
284:
285: for (i = 0, op = &old_drivers[0]; i < old_drivers_count; i++, op++) {
286: driver_t *driver;
287: driver = malloc(sizeof(driver_t), M_DEVBUF, M_NOWAIT | M_ZERO);
288: if (!driver)
289: continue;
290: driver->name = op->driver->name;
291: driver->methods = isa_compat_methods;
292: driver->size = sizeof(struct isa_device);
293: driver->priv = op;
294: if (op->driver->sensitive_hw)
295: resource_set_int(op->driver->name, -1, "sensitive", 1);
296: devclass_add_driver(isa_devclass, driver);
297: }
298: }
299:
300: int
301: haveseen_iobase(struct isa_device *dvp, int size)
302: {
303: int rid;
304: struct resource *res;
305: device_t dev = dvp->id_device;
306: int base = dvp->id_iobase;
307:
308: /*
309: * Ask for resource 1 so that we don't hurt our hints. In theory
310: * this should work, but....
311: */
312: rid = 1;
313: res = bus_alloc_resource(dev, SYS_RES_IOPORT,
314: &rid, base, base + size, size, RF_ACTIVE);
315: if (res)
316: bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
317: return res ? 0 : 1;
318: }
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