1 /*-
2 * Device probe and attach routines for the following
3 * Advanced Systems Inc. SCSI controllers:
4 *
5 * Single Channel Products:
6 * ABP742 - Bus-Master EISA (240 CDB)
7 *
8 * Dual Channel Products:
9 * ABP752 - Dual Channel Bus-Master EISA (240 CDB Per Channel)
10 *
11 * Copyright (c) 1997 Justin Gibbs.
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions, and the following disclaimer,
19 * without modification, immediately at the beginning of the file.
20 * 2. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/module.h>
43 #include <sys/lock.h>
44 #include <sys/mutex.h>
45 #include <sys/bus.h>
46
47 #include <machine/bus.h>
48 #include <machine/resource.h>
49 #include <sys/rman.h>
50
51 #include <dev/eisa/eisaconf.h>
52
53 #include <dev/advansys/advansys.h>
54
55 #define EISA_DEVICE_ID_ADVANSYS_740 0x04507400
56 #define EISA_DEVICE_ID_ADVANSYS_750 0x04507500
57
58 #define ADV_EISA_SLOT_OFFSET 0xc00
59 #define ADV_EISA_OFFSET_CHAN1 0x30
60 #define ADV_EISA_OFFSET_CHAN2 0x50
61 #define ADV_EISA_IOSIZE 0x100
62
63 #define ADV_EISA_ROM_BIOS_ADDR_REG 0x86
64 #define ADV_EISA_IRQ_BURST_LEN_REG 0x87
65 #define ADV_EISA_IRQ_MASK 0x07
66 #define ADV_EISA_IRQ_10 0x00
67 #define ADV_EISA_IRQ_11 0x01
68 #define ADV_EISA_IRQ_12 0x02
69 #define ADV_EISA_IRQ_14 0x04
70 #define ADV_EISA_IRQ_15 0x05
71
72 #define ADV_EISA_MAX_DMA_ADDR (0x07FFFFFFL)
73 #define ADV_EISA_MAX_DMA_COUNT (0x07FFFFFFL)
74
75 /*
76 * The overrun buffer shared amongst all EISA adapters.
77 */
78 static void* overrun_buf;
79 static bus_dma_tag_t overrun_dmat;
80 static bus_dmamap_t overrun_dmamap;
81 static bus_addr_t overrun_physbase;
82
83 static const char*
84 adv_eisa_match(eisa_id_t type)
85 {
86 switch (type & ~0xF) {
87 case EISA_DEVICE_ID_ADVANSYS_740:
88 return ("AdvanSys ABP-740/742 SCSI adapter");
89 break;
90 case EISA_DEVICE_ID_ADVANSYS_750:
91 return ("AdvanSys ABP-750/752 SCSI adapter");
92 break;
93 default:
94 break;
95 }
96 return (NULL);
97 }
98
99 static int
100 adv_eisa_probe(device_t dev)
101 {
102 const char *desc;
103 u_int32_t iobase;
104 u_int8_t irq;
105
106 desc = adv_eisa_match(eisa_get_id(dev));
107 if (!desc)
108 return (ENXIO);
109 device_set_desc(dev, desc);
110
111 iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + ADV_EISA_SLOT_OFFSET;
112
113 eisa_add_iospace(dev, iobase, ADV_EISA_IOSIZE, RESVADDR_NONE);
114 irq = inb(iobase + ADV_EISA_IRQ_BURST_LEN_REG);
115 irq &= ADV_EISA_IRQ_MASK;
116 switch (irq) {
117 case 0:
118 case 1:
119 case 2:
120 case 4:
121 case 5:
122 break;
123 default:
124 printf("adv at slot %d: illegal "
125 "irq setting %d\n", eisa_get_slot(dev),
126 irq);
127 return ENXIO;
128 }
129 eisa_add_intr(dev, irq + 10, EISA_TRIGGER_LEVEL);
130
131 return 0;
132 }
133
134 static int
135 adv_eisa_attach(device_t dev)
136 {
137 struct adv_softc *adv;
138 struct adv_softc *adv_b;
139 struct resource *io;
140 struct resource *irq;
141 int rid, error;
142 void *ih;
143
144 adv_b = NULL;
145
146 rid = 0;
147 io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
148 if (!io) {
149 device_printf(dev, "No I/O space?!\n");
150 return ENOMEM;
151 }
152
153 rid = 0;
154 irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
155 RF_SHAREABLE | RF_ACTIVE);
156 if (!irq) {
157 device_printf(dev, "No irq?!\n");
158 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
159 return ENOMEM;
160
161 }
162
163 switch (eisa_get_id(dev) & ~0xF) {
164 case EISA_DEVICE_ID_ADVANSYS_750:
165 adv_b = adv_alloc(dev, rman_get_bustag(io),
166 rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN2);
167 if (adv_b == NULL)
168 goto bad;
169
170 /*
171 * Allocate a parent dmatag for all tags created
172 * by the MI portions of the advansys driver
173 */
174 error = bus_dma_tag_create(
175 /* parent */ bus_get_dma_tag(dev),
176 /* alignment */ 1,
177 /* boundary */ 0,
178 /* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
179 /* highaddr */ BUS_SPACE_MAXADDR,
180 /* filter */ NULL,
181 /* filterarg */ NULL,
182 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
183 /* nsegments */ ~0,
184 /* maxsegsz */ ADV_EISA_MAX_DMA_COUNT,
185 /* flags */ 0,
186 /* lockfunc */ busdma_lock_mutex,
187 /* lockarg */ &Giant,
188 &adv_b->parent_dmat);
189
190 if (error != 0) {
191 printf("%s: Could not allocate DMA tag - error %d\n",
192 adv_name(adv_b), error);
193 adv_free(adv_b);
194 goto bad;
195 }
196
197 adv_b->init_level++;
198
199 /* FALLTHROUGH */
200 case EISA_DEVICE_ID_ADVANSYS_740:
201 adv = adv_alloc(dev, rman_get_bustag(io),
202 rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN1);
203 if (adv == NULL) {
204 if (adv_b != NULL)
205 adv_free(adv_b);
206 goto bad;
207 }
208
209 /*
210 * Allocate a parent dmatag for all tags created
211 * by the MI portions of the advansys driver
212 */
213 error = bus_dma_tag_create(
214 /* parent */ bus_get_dma_tag(dev),
215 /* alignment */ 1,
216 /* boundary */ 0,
217 /* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
218 /* highaddr */ BUS_SPACE_MAXADDR,
219 /* filter */ NULL,
220 /* filterarg */ NULL,
221 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
222 /* nsegments */ ~0,
223 /* maxsegsz */ ADV_EISA_MAX_DMA_COUNT,
224 /* flags */ 0,
225 /* lockfunc */ busdma_lock_mutex,
226 /* lockarg */ &Giant,
227 &adv->parent_dmat);
228
229 if (error != 0) {
230 printf("%s: Could not allocate DMA tag - error %d\n",
231 adv_name(adv), error);
232 adv_free(adv);
233 goto bad;
234 }
235
236 adv->init_level++;
237 break;
238 default:
239 printf("adveisaattach: Unknown device type!\n");
240 goto bad;
241 break;
242 }
243
244 if (overrun_buf == NULL) {
245 /* Need to allocate our overrun buffer */
246 if (bus_dma_tag_create(
247 /* parent */ adv->parent_dmat,
248 /* alignment */ 8,
249 /* boundary */ 0,
250 /* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
251 /* highaddr */ BUS_SPACE_MAXADDR,
252 /* filter */ NULL,
253 /* filterarg */ NULL,
254 /* maxsize */ ADV_OVERRUN_BSIZE,
255 /* nsegments */ 1,
256 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
257 /* flags */ 0,
258 /* lockfunc */ busdma_lock_mutex,
259 /* lockarg */ &Giant,
260 &overrun_dmat) != 0) {
261 adv_free(adv);
262 goto bad;
263 }
264 if (bus_dmamem_alloc(overrun_dmat,
265 &overrun_buf,
266 BUS_DMA_NOWAIT,
267 &overrun_dmamap) != 0) {
268 bus_dma_tag_destroy(overrun_dmat);
269 adv_free(adv);
270 goto bad;
271 }
272 /* And permanently map it in */
273 bus_dmamap_load(overrun_dmat, overrun_dmamap,
274 overrun_buf, ADV_OVERRUN_BSIZE,
275 adv_map, &overrun_physbase,
276 /*flags*/0);
277 }
278
279 /*
280 * Now that we know we own the resources we need, do the
281 * card initialization.
282 */
283
284 /*
285 * Stop the chip.
286 */
287 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
288 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
289
290 adv->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
291 + ADV_CHIP_MIN_VER_EISA - 1;
292
293 if (adv_init(adv) != 0) {
294 adv_free(adv);
295 if (adv_b != NULL)
296 adv_free(adv_b);
297 return(-1);
298 }
299
300 adv->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
301 adv->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
302
303 if (adv_b != NULL) {
304 /*
305 * Stop the chip.
306 */
307 ADV_OUTB(adv_b, ADV_CHIP_CTRL, ADV_CC_HALT);
308 ADV_OUTW(adv_b, ADV_CHIP_STATUS, 0);
309
310 adv_b->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
311 + ADV_CHIP_MIN_VER_EISA - 1;
312
313 if (adv_init(adv_b) != 0) {
314 adv_free(adv_b);
315 } else {
316 adv_b->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
317 adv_b->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
318 }
319 }
320
321 /*
322 * Enable our interrupt handler.
323 */
324 bus_setup_intr(dev, irq, INTR_TYPE_CAM|INTR_ENTROPY, NULL, adv_intr,
325 adv, &ih);
326
327 /* Attach sub-devices - always succeeds */
328 adv_attach(adv);
329 if (adv_b != NULL)
330 adv_attach(adv_b);
331
332 return 0;
333
334 bad:
335 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
336 bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
337 return -1;
338 }
339
340 static device_method_t adv_eisa_methods[] = {
341 /* Device interface */
342 DEVMETHOD(device_probe, adv_eisa_probe),
343 DEVMETHOD(device_attach, adv_eisa_attach),
344 { 0, 0 }
345 };
346
347 static driver_t adv_eisa_driver = {
348 "adv", adv_eisa_methods, sizeof(struct adv_softc)
349 };
350
351 static devclass_t adv_eisa_devclass;
352 DRIVER_MODULE(adv, eisa, adv_eisa_driver, adv_eisa_devclass, 0, 0);
353 MODULE_DEPEND(adv, eisa, 1, 1, 1);
Cache object: 5311b78980c0a4403550809c2ff9ecdb
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