Hardwire i386 instead of using the borken machine variable
[dragonfly.git] / sys / dev / disk / aha / aha_isa.c
CommitLineData
984263bc
MD
1/*
2 * Product specific probe and attach routines for:
3 * Adaptec 154x.
4 *
5 * Derived from code written by:
6 *
7 * Copyright (c) 1998 Justin T. Gibbs
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions, and the following disclaimer,
15 * without modification, immediately at the beginning of the file.
16 * 2. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD: src/sys/dev/aha/aha_isa.c,v 1.17.2.1 2000/08/02 22:24:40 peter Exp $
1de703da 32 * $DragonFly: src/sys/dev/disk/aha/aha_isa.c,v 1.2 2003/06/17 04:28:21 dillon Exp $
984263bc
MD
33 */
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/kernel.h>
38
39#include <machine/bus_pio.h>
40#include <machine/bus.h>
41#include <machine/resource.h>
42#include <sys/module.h>
43#include <sys/bus.h>
44#include <sys/rman.h>
45
46#include <isa/isavar.h>
47
48#include <dev/aha/ahareg.h>
49
50#include <cam/scsi/scsi_all.h>
51
52static struct isa_pnp_id aha_ids[] = {
53 {ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */
54 {AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1542 */
55 {AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */
56 {AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */
57 {ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */
58 {0}
59};
60
61/*
62 * Check if the device can be found at the port given
63 * and if so, set it up ready for further work
64 * as an argument, takes the isa_device structure from
65 * autoconf.c
66 */
67static int
68aha_isa_probe(device_t dev)
69{
70 /*
71 * find unit and check we have that many defined
72 */
73 struct aha_softc **sc = device_get_softc(dev);
74 struct aha_softc *aha;
75 int port_index;
76 int max_port_index;
77 int error;
78 u_long port_start, port_count;
79 struct resource *port_res;
80 int port_rid;
81 int drq;
82 int irq;
83
84 aha = NULL;
85
86 /* Check isapnp ids */
87 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
88 return (ENXIO);
89
90 error = bus_get_resource(dev, SYS_RES_IOPORT, 0,
91 &port_start, &port_count);
92 if (error != 0)
93 port_start = 0;
94
95 /*
96 * Bound our board search if the user has
97 * specified an exact port.
98 */
99 aha_find_probe_range(port_start, &port_index, &max_port_index);
100
101 if (port_index < 0)
102 return ENXIO;
103
104 /* Attempt to find an adapter */
105 for (;port_index <= max_port_index; port_index++) {
106 config_data_t config_data;
107 u_int ioport;
108 int error;
109
110 ioport = aha_iop_from_bio(port_index);
111
112 error = bus_set_resource(dev, SYS_RES_IOPORT, 0,
113 ioport, AHA_NREGS);
114 if (error)
115 return error;
116
117 port_rid = 0;
118 port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
119 0, ~0, AHA_NREGS, RF_ACTIVE);
120 if (!port_res)
121 continue;
122
123 /* Allocate a softc for use during probing */
124 aha = aha_alloc(device_get_unit(dev), rman_get_bustag(port_res),
125 rman_get_bushandle(port_res));
126
127 if (aha == NULL) {
128 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
129 port_res);
130 break;
131 }
132
133 /* See if there is really a card present */
134 if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
135 aha_free(aha);
136 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
137 port_res);
138 continue;
139 }
140
141 /*
142 * Determine our IRQ, and DMA settings and
143 * export them to the configuration system.
144 */
145 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
146 (u_int8_t*)&config_data, sizeof(config_data),
147 DEFAULT_CMD_TIMEOUT);
148
149 if (error != 0) {
150 printf("aha_isa_probe: Could not determine IRQ or DMA "
151 "settings for adapter at 0x%x. Failing probe\n",
152 ioport);
153 aha_free(aha);
154 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
155 port_res);
156 continue;
157 }
158
159 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
160
161 switch (config_data.dma_chan) {
162 case DMA_CHAN_5:
163 drq = 5;
164 break;
165 case DMA_CHAN_6:
166 drq = 6;
167 break;
168 case DMA_CHAN_7:
169 drq = 7;
170 break;
171 default:
172 printf("aha_isa_probe: Invalid DMA setting "
173 "detected for adapter at 0x%x. "
174 "Failing probe\n", ioport);
175 return (ENXIO);
176 }
177 error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
178 if (error)
179 return error;
180
181 irq = ffs(config_data.irq) + 8;
182 error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
183 if (error)
184 return error;
185
186 *sc = aha;
187 aha_unit++;
188
189 return (0);
190 }
191
192 return (ENXIO);
193}
194
195/*
196 * Attach all the sub-devices we can find
197 */
198static int
199aha_isa_attach(device_t dev)
200{
201 struct aha_softc **sc = device_get_softc(dev);
202 struct aha_softc *aha;
203 bus_dma_filter_t *filter;
204 void *filter_arg;
205 bus_addr_t lowaddr;
206 void *ih;
207 int error;
208
209 aha = *sc;
210 aha->portrid = 0;
211 aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
212 0, ~0, AHA_NREGS, RF_ACTIVE);
213 if (!aha->port) {
214 device_printf(dev, "Unable to allocate I/O ports\n");
215 return ENOMEM;
216 }
217
218 aha->irqrid = 0;
219 aha->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &aha->irqrid, 0, ~0, 1,
220 RF_ACTIVE);
221 if (!aha->irq) {
222 device_printf(dev, "Unable to allocate excluse use of irq\n");
223 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
224 return ENOMEM;
225 }
226
227 aha->drqrid = 0;
228 aha->drq = bus_alloc_resource(dev, SYS_RES_DRQ, &aha->drqrid, 0, ~0, 1,
229 RF_ACTIVE);
230 if (!aha->drq) {
231 device_printf(dev, "Unable to allocate drq\n");
232 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
233 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
234 return ENOMEM;
235 }
236
237#if 0 /* is the drq ever unset? */
238 if (dev->id_drq != -1)
239 isa_dmacascade(dev->id_drq);
240#endif
241 isa_dmacascade(rman_get_start(aha->drq));
242
243 /* Allocate our parent dmatag */
244 filter = NULL;
245 filter_arg = NULL;
246 lowaddr = BUS_SPACE_MAXADDR_24BIT;
247
248 if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0,
249 lowaddr, /*highaddr*/BUS_SPACE_MAXADDR,
250 filter, filter_arg,
251 /*maxsize*/BUS_SPACE_MAXSIZE_24BIT,
252 /*nsegments*/BUS_SPACE_UNRESTRICTED,
253 /*maxsegsz*/BUS_SPACE_MAXSIZE_24BIT,
254 /*flags*/0, &aha->parent_dmat) != 0) {
255 aha_free(aha);
256 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
257 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
258 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
259 return (ENOMEM);
260 }
261
262 if (aha_init(aha)) {
263 device_printf(dev, "init failed\n");
264 aha_free(aha);
265 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
266 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
267 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
268 return (ENOMEM);
269 }
270
271 error = aha_attach(aha);
272 if (error) {
273 device_printf(dev, "attach failed\n");
274 aha_free(aha);
275 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
276 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
277 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
278 return (error);
279 }
280
281 error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM, aha_intr, aha,
282 &ih);
283 if (error) {
284 device_printf(dev, "Unable to register interrupt handler\n");
285 aha_free(aha);
286 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
287 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
288 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
289 return (error);
290 }
291
292 return (0);
293}
294
295static int
296aha_isa_detach(device_t dev)
297{
298 struct aha_softc *aha = *(struct aha_softc **) device_get_softc(dev);
299 int error;
300
301 error = bus_teardown_intr(dev, aha->irq, aha->ih);
302 if (error) {
303 device_printf(dev, "failed to unregister interrupt handler\n");
304 }
305
306 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
307 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
308 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
309
310 error = aha_detach(aha);
311 if (error) {
312 device_printf(dev, "detach failed\n");
313 return (error);
314 }
315 aha_free(aha);
316
317 return (0);
318}
319
320static void
321aha_isa_identify(driver_t *driver, device_t parent)
322{
323}
324
325static device_method_t aha_isa_methods[] = {
326 /* Device interface */
327 DEVMETHOD(device_probe, aha_isa_probe),
328 DEVMETHOD(device_attach, aha_isa_attach),
329 DEVMETHOD(device_detach, aha_isa_detach),
330 DEVMETHOD(device_identify, aha_isa_identify),
331
332 { 0, 0 }
333};
334
335static driver_t aha_isa_driver = {
336 "aha",
337 aha_isa_methods,
338 sizeof(struct aha_softc*),
339};
340
341static devclass_t aha_devclass;
342
343DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);