FreeBSD/Linux Kernel Cross Reference
sys/dev/aha/aha_isa.c
1 /*
2 * Product specific probe and attach routines for:
3 * Adaptec 154x.
4 *
5 * Copyright (c) 1999-2003 M. Warner Losh
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification, immediately at the beginning of the file.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * Derived from bt isa from end, written by:
30 *
31 * Copyright (c) 1998 Justin T. Gibbs
32 * All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions, and the following disclaimer,
39 * without modification, immediately at the beginning of the file.
40 * 2. The name of the author may not be used to endorse or promote products
41 * derived from this software without specific prior written permission.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
47 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * SUCH DAMAGE.
54 */
55
56 #include <sys/cdefs.h>
57 __FBSDID("$FreeBSD: releng/5.3/sys/dev/aha/aha_isa.c 127135 2004-03-17 17:50:55Z njl $");
58
59 #include <sys/param.h>
60 #include <sys/systm.h>
61 #include <sys/kernel.h>
62 #include <sys/lock.h>
63 #include <sys/mutex.h>
64
65 #include <machine/bus_pio.h>
66 #include <machine/bus.h>
67 #include <machine/resource.h>
68 #include <sys/module.h>
69 #include <sys/bus.h>
70 #include <sys/rman.h>
71
72 #include <isa/isavar.h>
73
74 #include <dev/aha/ahareg.h>
75
76 #include <cam/scsi/scsi_all.h>
77
78 static struct isa_pnp_id aha_ids[] = {
79 {ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */
80 {AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1540 */
81 {AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */
82 {AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */
83 {ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */
84 {0}
85 };
86
87 /*
88 * I/O ports listed in the order enumerated by the card for certain op codes.
89 */
90 static bus_addr_t aha_board_ports[] =
91 {
92 0x330,
93 0x334,
94 0x230,
95 0x234,
96 0x130,
97 0x134
98 };
99
100 /*
101 * Check if the device can be found at the port given
102 */
103 static int
104 aha_isa_probe(device_t dev)
105 {
106 /*
107 * find unit and check we have that many defined
108 */
109 struct aha_softc *aha = device_get_softc(dev);
110 int error;
111 u_long port_start;
112 struct resource *port_res;
113 int port_rid;
114 int drq;
115 int irq;
116 config_data_t config_data;
117
118 aha->dev = dev;
119 /* Check isapnp ids */
120 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
121 return (ENXIO);
122
123 port_rid = 0;
124 port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
125 0, ~0, AHA_NREGS, RF_ACTIVE);
126
127 if (port_res == NULL)
128 return (ENXIO);
129
130 port_start = rman_get_start(port_res);
131 aha_alloc(aha, device_get_unit(dev), rman_get_bustag(port_res),
132 rman_get_bushandle(port_res));
133
134 /* See if there is really a card present */
135 if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
136 aha_free(aha);
137 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
138 return (ENXIO);
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 (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
147
148 if (error != 0) {
149 device_printf(dev, "Could not determine IRQ or DMA "
150 "settings for adapter at %#jx. Failing probe\n",
151 (uintmax_t)port_start);
152 aha_free(aha);
153 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
154 port_res);
155 return (ENXIO);
156 }
157
158 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
159
160 switch (config_data.dma_chan) {
161 case DMA_CHAN_5:
162 drq = 5;
163 break;
164 case DMA_CHAN_6:
165 drq = 6;
166 break;
167 case DMA_CHAN_7:
168 drq = 7;
169 break;
170 default:
171 device_printf(dev, "Invalid DMA setting for adapter at %#jx.",
172 (uintmax_t)port_start);
173 return (ENXIO);
174 }
175 error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
176 if (error)
177 return error;
178
179 irq = ffs(config_data.irq) + 8;
180 error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
181 return (error);
182 }
183
184 /*
185 * Attach all the sub-devices we can find
186 */
187 static int
188 aha_isa_attach(device_t dev)
189 {
190 struct aha_softc *aha = device_get_softc(dev);
191 bus_dma_filter_t *filter;
192 void *filter_arg;
193 bus_addr_t lowaddr;
194 void *ih;
195 int error;
196
197 aha->dev = dev;
198 aha->portrid = 0;
199 aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
200 0, ~0, AHA_NREGS, RF_ACTIVE);
201 if (!aha->port) {
202 device_printf(dev, "Unable to allocate I/O ports\n");
203 return ENOMEM;
204 }
205
206 aha->irqrid = 0;
207 aha->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &aha->irqrid,
208 RF_ACTIVE);
209 if (!aha->irq) {
210 device_printf(dev, "Unable to allocate excluse use of irq\n");
211 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
212 return ENOMEM;
213 }
214
215 aha->drqrid = 0;
216 aha->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &aha->drqrid,
217 RF_ACTIVE);
218 if (!aha->drq) {
219 device_printf(dev, "Unable to allocate drq\n");
220 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
221 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
222 return ENOMEM;
223 }
224
225 #if 0 /* is the drq ever unset? */
226 if (dev->id_drq != -1)
227 isa_dmacascade(dev->id_drq);
228 #endif
229 isa_dmacascade(rman_get_start(aha->drq));
230
231 /* Allocate our parent dmatag */
232 filter = NULL;
233 filter_arg = NULL;
234 lowaddr = BUS_SPACE_MAXADDR_24BIT;
235
236 if (bus_dma_tag_create( /* parent */ NULL,
237 /* alignemnt */ 1,
238 /* boundary */ 0,
239 /* lowaddr */ lowaddr,
240 /* highaddr */ BUS_SPACE_MAXADDR,
241 /* filter */ filter,
242 /* filterarg */ filter_arg,
243 /* maxsize */ BUS_SPACE_MAXSIZE_24BIT,
244 /* nsegments */ ~0,
245 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
246 /* flags */ 0,
247 /* lockfunc */ busdma_lock_mutex,
248 /* lockarg */ &Giant,
249 &aha->parent_dmat) != 0) {
250 aha_free(aha);
251 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
252 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
253 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
254 return (ENOMEM);
255 }
256
257 if (aha_init(aha)) {
258 device_printf(dev, "init failed\n");
259 aha_free(aha);
260 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
261 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
262 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
263 return (ENOMEM);
264 }
265
266 error = aha_attach(aha);
267 if (error) {
268 device_printf(dev, "attach failed\n");
269 aha_free(aha);
270 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
271 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
272 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
273 return (error);
274 }
275
276 error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY, aha_intr, aha,
277 &ih);
278 if (error) {
279 device_printf(dev, "Unable to register interrupt handler\n");
280 aha_free(aha);
281 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
282 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
283 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
284 return (error);
285 }
286
287 return (0);
288 }
289
290 static int
291 aha_isa_detach(device_t dev)
292 {
293 struct aha_softc *aha = (struct aha_softc *)device_get_softc(dev);
294 int error;
295
296 error = bus_teardown_intr(dev, aha->irq, aha->ih);
297 if (error) {
298 device_printf(dev, "failed to unregister interrupt handler\n");
299 }
300
301 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
302 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
303 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
304
305 error = aha_detach(aha);
306 if (error) {
307 device_printf(dev, "detach failed\n");
308 return (error);
309 }
310 aha_free(aha);
311
312 return (0);
313 }
314
315 static void
316 aha_isa_identify(driver_t *driver, device_t parent)
317 {
318 int i;
319 bus_addr_t ioport;
320 struct aha_softc aha;
321 int rid;
322 struct resource *res;
323 device_t child;
324
325 /* Attempt to find an adapter */
326 for (i = 0; i < sizeof(aha_board_ports) / sizeof(aha_board_ports[0]);
327 i++) {
328 bzero(&aha, sizeof(aha));
329 ioport = aha_board_ports[i];
330 /*
331 * XXX Check to see if we have a hard-wired aha device at
332 * XXX this port, if so, skip. This should also cover the
333 * XXX case where we are run multiple times due to, eg,
334 * XXX kldload/kldunload.
335 */
336 rid = 0;
337 res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
338 ioport, ioport, AHA_NREGS, RF_ACTIVE);
339 if (res == NULL)
340 continue;
341 aha_alloc(&aha, -1, rman_get_bustag(res),
342 rman_get_bushandle(res));
343 /* See if there is really a card present */
344 if (aha_probe(&aha) || aha_fetch_adapter_info(&aha))
345 goto not_this_one;
346 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "aha", -1);
347 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, AHA_NREGS);
348 /*
349 * Could query the board and set IRQ/DRQ, but probe does
350 * that.
351 */
352 not_this_one:;
353 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
354 aha_free(&aha);
355 }
356 }
357
358 static device_method_t aha_isa_methods[] = {
359 /* Device interface */
360 DEVMETHOD(device_probe, aha_isa_probe),
361 DEVMETHOD(device_attach, aha_isa_attach),
362 DEVMETHOD(device_detach, aha_isa_detach),
363 DEVMETHOD(device_identify, aha_isa_identify),
364
365 { 0, 0 }
366 };
367
368 static driver_t aha_isa_driver = {
369 "aha",
370 aha_isa_methods,
371 sizeof(struct aha_softc),
372 };
373
374 static devclass_t aha_devclass;
375
376 DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);
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