Initial import from FreeBSD RELENG_4:
[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 $
32 */
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37
38#include <machine/bus_pio.h>
39#include <machine/bus.h>
40#include <machine/resource.h>
41#include <sys/module.h>
42#include <sys/bus.h>
43#include <sys/rman.h>
44
45#include <isa/isavar.h>
46
47#include <dev/aha/ahareg.h>
48
49#include <cam/scsi/scsi_all.h>
50
51static struct isa_pnp_id aha_ids[] = {
52 {ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */
53 {AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1542 */
54 {AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */
55 {AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */
56 {ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */
57 {0}
58};
59
60/*
61 * Check if the device can be found at the port given
62 * and if so, set it up ready for further work
63 * as an argument, takes the isa_device structure from
64 * autoconf.c
65 */
66static int
67aha_isa_probe(device_t dev)
68{
69 /*
70 * find unit and check we have that many defined
71 */
72 struct aha_softc **sc = device_get_softc(dev);
73 struct aha_softc *aha;
74 int port_index;
75 int max_port_index;
76 int error;
77 u_long port_start, port_count;
78 struct resource *port_res;
79 int port_rid;
80 int drq;
81 int irq;
82
83 aha = NULL;
84
85 /* Check isapnp ids */
86 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
87 return (ENXIO);
88
89 error = bus_get_resource(dev, SYS_RES_IOPORT, 0,
90 &port_start, &port_count);
91 if (error != 0)
92 port_start = 0;
93
94 /*
95 * Bound our board search if the user has
96 * specified an exact port.
97 */
98 aha_find_probe_range(port_start, &port_index, &max_port_index);
99
100 if (port_index < 0)
101 return ENXIO;
102
103 /* Attempt to find an adapter */
104 for (;port_index <= max_port_index; port_index++) {
105 config_data_t config_data;
106 u_int ioport;
107 int error;
108
109 ioport = aha_iop_from_bio(port_index);
110
111 error = bus_set_resource(dev, SYS_RES_IOPORT, 0,
112 ioport, AHA_NREGS);
113 if (error)
114 return error;
115
116 port_rid = 0;
117 port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
118 0, ~0, AHA_NREGS, RF_ACTIVE);
119 if (!port_res)
120 continue;
121
122 /* Allocate a softc for use during probing */
123 aha = aha_alloc(device_get_unit(dev), rman_get_bustag(port_res),
124 rman_get_bushandle(port_res));
125
126 if (aha == NULL) {
127 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
128 port_res);
129 break;
130 }
131
132 /* See if there is really a card present */
133 if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
134 aha_free(aha);
135 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
136 port_res);
137 continue;
138 }
139
140 /*
141 * Determine our IRQ, and DMA settings and
142 * export them to the configuration system.
143 */
144 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
145 (u_int8_t*)&config_data, sizeof(config_data),
146 DEFAULT_CMD_TIMEOUT);
147
148 if (error != 0) {
149 printf("aha_isa_probe: Could not determine IRQ or DMA "
150 "settings for adapter at 0x%x. Failing probe\n",
151 ioport);
152 aha_free(aha);
153 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
154 port_res);
155 continue;
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 printf("aha_isa_probe: Invalid DMA setting "
172 "detected for adapter at 0x%x. "
173 "Failing probe\n", ioport);
174 return (ENXIO);
175 }
176 error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
177 if (error)
178 return error;
179
180 irq = ffs(config_data.irq) + 8;
181 error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
182 if (error)
183 return error;
184
185 *sc = aha;
186 aha_unit++;
187
188 return (0);
189 }
190
191 return (ENXIO);
192}
193
194/*
195 * Attach all the sub-devices we can find
196 */
197static int
198aha_isa_attach(device_t dev)
199{
200 struct aha_softc **sc = device_get_softc(dev);
201 struct aha_softc *aha;
202 bus_dma_filter_t *filter;
203 void *filter_arg;
204 bus_addr_t lowaddr;
205 void *ih;
206 int error;
207
208 aha = *sc;
209 aha->portrid = 0;
210 aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
211 0, ~0, AHA_NREGS, RF_ACTIVE);
212 if (!aha->port) {
213 device_printf(dev, "Unable to allocate I/O ports\n");
214 return ENOMEM;
215 }
216
217 aha->irqrid = 0;
218 aha->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &aha->irqrid, 0, ~0, 1,
219 RF_ACTIVE);
220 if (!aha->irq) {
221 device_printf(dev, "Unable to allocate excluse use of irq\n");
222 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
223 return ENOMEM;
224 }
225
226 aha->drqrid = 0;
227 aha->drq = bus_alloc_resource(dev, SYS_RES_DRQ, &aha->drqrid, 0, ~0, 1,
228 RF_ACTIVE);
229 if (!aha->drq) {
230 device_printf(dev, "Unable to allocate drq\n");
231 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
232 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
233 return ENOMEM;
234 }
235
236#if 0 /* is the drq ever unset? */
237 if (dev->id_drq != -1)
238 isa_dmacascade(dev->id_drq);
239#endif
240 isa_dmacascade(rman_get_start(aha->drq));
241
242 /* Allocate our parent dmatag */
243 filter = NULL;
244 filter_arg = NULL;
245 lowaddr = BUS_SPACE_MAXADDR_24BIT;
246
247 if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0,
248 lowaddr, /*highaddr*/BUS_SPACE_MAXADDR,
249 filter, filter_arg,
250 /*maxsize*/BUS_SPACE_MAXSIZE_24BIT,
251 /*nsegments*/BUS_SPACE_UNRESTRICTED,
252 /*maxsegsz*/BUS_SPACE_MAXSIZE_24BIT,
253 /*flags*/0, &aha->parent_dmat) != 0) {
254 aha_free(aha);
255 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
256 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
257 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
258 return (ENOMEM);
259 }
260
261 if (aha_init(aha)) {
262 device_printf(dev, "init failed\n");
263 aha_free(aha);
264 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
265 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
266 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
267 return (ENOMEM);
268 }
269
270 error = aha_attach(aha);
271 if (error) {
272 device_printf(dev, "attach failed\n");
273 aha_free(aha);
274 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
275 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
276 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
277 return (error);
278 }
279
280 error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM, aha_intr, aha,
281 &ih);
282 if (error) {
283 device_printf(dev, "Unable to register interrupt handler\n");
284 aha_free(aha);
285 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
286 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
287 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
288 return (error);
289 }
290
291 return (0);
292}
293
294static int
295aha_isa_detach(device_t dev)
296{
297 struct aha_softc *aha = *(struct aha_softc **) device_get_softc(dev);
298 int error;
299
300 error = bus_teardown_intr(dev, aha->irq, aha->ih);
301 if (error) {
302 device_printf(dev, "failed to unregister interrupt handler\n");
303 }
304
305 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
306 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
307 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
308
309 error = aha_detach(aha);
310 if (error) {
311 device_printf(dev, "detach failed\n");
312 return (error);
313 }
314 aha_free(aha);
315
316 return (0);
317}
318
319static void
320aha_isa_identify(driver_t *driver, device_t parent)
321{
322}
323
324static device_method_t aha_isa_methods[] = {
325 /* Device interface */
326 DEVMETHOD(device_probe, aha_isa_probe),
327 DEVMETHOD(device_attach, aha_isa_attach),
328 DEVMETHOD(device_detach, aha_isa_detach),
329 DEVMETHOD(device_identify, aha_isa_identify),
330
331 { 0, 0 }
332};
333
334static driver_t aha_isa_driver = {
335 "aha",
336 aha_isa_methods,
337 sizeof(struct aha_softc*),
338};
339
340static devclass_t aha_devclass;
341
342DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);