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*
adv_eisa_match(eisa_id_t type)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
adv_eisa_probe(device_t dev)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 /*
135 * The adv_b stuff to handle twin-channel cards will not work in its current
136 * incarnation. It tries to reuse the same softc since adv_alloc() doesn't
137 * actually allocate a softc. It also tries to reuse the same unit number
138 * for both sims. This can be re-enabled if someone fixes it properly.
139 */
140 static int
adv_eisa_attach(device_t dev)141 adv_eisa_attach(device_t dev)
142 {
143 struct adv_softc *adv;
144 #if 0
145 struct adv_softc *adv_b;
146 #endif
147 struct resource *io;
148 struct resource *irq;
149 int rid, error;
150 void *ih;
151
152 #if 0
153 adv_b = NULL;
154 #endif
155
156 rid = 0;
157 io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
158 if (!io) {
159 device_printf(dev, "No I/O space?!\n");
160 return ENOMEM;
161 }
162
163 rid = 0;
164 irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
165 RF_SHAREABLE | RF_ACTIVE);
166 if (!irq) {
167 device_printf(dev, "No irq?!\n");
168 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
169 return ENOMEM;
170
171 }
172
173 switch (eisa_get_id(dev) & ~0xF) {
174 case EISA_DEVICE_ID_ADVANSYS_750:
175 #if 0
176 adv_b = adv_alloc(dev, io, ADV_EISA_OFFSET_CHAN2);
177 if (adv_b == NULL)
178 goto bad;
179
180 /*
181 * Allocate a parent dmatag for all tags created
182 * by the MI portions of the advansys driver
183 */
184 error = bus_dma_tag_create(
185 /* parent */ bus_get_dma_tag(dev),
186 /* alignment */ 1,
187 /* boundary */ 0,
188 /* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
189 /* highaddr */ BUS_SPACE_MAXADDR,
190 /* filter */ NULL,
191 /* filterarg */ NULL,
192 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
193 /* nsegments */ ~0,
194 /* maxsegsz */ ADV_EISA_MAX_DMA_COUNT,
195 /* flags */ 0,
196 /* lockfunc */ NULL,
197 /* lockarg */ NULL,
198 &adv_b->parent_dmat);
199
200 if (error != 0) {
201 device_printf(dev, "Could not allocate DMA tag - error %d\n",
202 error);
203 adv_free(adv_b);
204 goto bad;
205 }
206
207 adv_b->init_level++;
208 #endif
209
210 /* FALLTHROUGH */
211 case EISA_DEVICE_ID_ADVANSYS_740:
212 adv = adv_alloc(dev, io, ADV_EISA_OFFSET_CHAN1);
213 if (adv == NULL) {
214 #if 0
215 if (adv_b != NULL)
216 adv_free(adv_b);
217 #endif
218 goto bad;
219 }
220
221 /*
222 * Allocate a parent dmatag for all tags created
223 * by the MI portions of the advansys driver
224 */
225 error = bus_dma_tag_create(
226 /* parent */ bus_get_dma_tag(dev),
227 /* alignment */ 1,
228 /* boundary */ 0,
229 /* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
230 /* highaddr */ BUS_SPACE_MAXADDR,
231 /* filter */ NULL,
232 /* filterarg */ NULL,
233 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
234 /* nsegments */ ~0,
235 /* maxsegsz */ ADV_EISA_MAX_DMA_COUNT,
236 /* flags */ 0,
237 /* lockfunc */ NULL,
238 /* lockarg */ NULL,
239 &adv->parent_dmat);
240
241 if (error != 0) {
242 device_printf(dev, "Could not allocate DMA tag - error %d\n",
243 error);
244 adv_free(adv);
245 goto bad;
246 }
247
248 adv->init_level++;
249 break;
250 default:
251 printf("adveisaattach: Unknown device type!\n");
252 goto bad;
253 break;
254 }
255
256 if (overrun_buf == NULL) {
257 /* Need to allocate our overrun buffer */
258 if (bus_dma_tag_create(
259 /* parent */ bus_get_dma_tag(dev),
260 /* alignment */ 8,
261 /* boundary */ 0,
262 /* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
263 /* highaddr */ BUS_SPACE_MAXADDR,
264 /* filter */ NULL,
265 /* filterarg */ NULL,
266 /* maxsize */ ADV_OVERRUN_BSIZE,
267 /* nsegments */ 1,
268 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
269 /* flags */ 0,
270 /* lockfunc */ NULL,
271 /* lockarg */ NULL,
272 &overrun_dmat) != 0) {
273 adv_free(adv);
274 goto bad;
275 }
276 if (bus_dmamem_alloc(overrun_dmat,
277 &overrun_buf,
278 BUS_DMA_NOWAIT,
279 &overrun_dmamap) != 0) {
280 bus_dma_tag_destroy(overrun_dmat);
281 adv_free(adv);
282 goto bad;
283 }
284 /* And permanently map it in */
285 bus_dmamap_load(overrun_dmat, overrun_dmamap,
286 overrun_buf, ADV_OVERRUN_BSIZE,
287 adv_map, &overrun_physbase,
288 /*flags*/0);
289 }
290
291 /*
292 * Now that we know we own the resources we need, do the
293 * card initialization.
294 */
295
296 /*
297 * Stop the chip.
298 */
299 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
300 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
301
302 adv->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
303 + ADV_CHIP_MIN_VER_EISA - 1;
304
305 if (adv_init(adv) != 0) {
306 adv_free(adv);
307 #if 0
308 if (adv_b != NULL)
309 adv_free(adv_b);
310 #endif
311 goto bad;
312 }
313
314 adv->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
315 adv->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
316
317 #if 0
318 if (adv_b != NULL) {
319 /*
320 * Stop the chip.
321 */
322 ADV_OUTB(adv_b, ADV_CHIP_CTRL, ADV_CC_HALT);
323 ADV_OUTW(adv_b, ADV_CHIP_STATUS, 0);
324
325 adv_b->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
326 + ADV_CHIP_MIN_VER_EISA - 1;
327
328 if (adv_init(adv_b) != 0) {
329 adv_free(adv_b);
330 } else {
331 adv_b->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
332 adv_b->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
333 }
334 }
335 #endif
336
337 /*
338 * Enable our interrupt handler.
339 */
340 if (bus_setup_intr(dev, irq, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, NULL,
341 adv_intr, adv, &ih) != 0) {
342 adv_free(adv);
343 goto bad;
344 }
345
346 /* Attach sub-devices */
347 if (adv_attach(adv) != 0) {
348 adv_free(adv);
349 goto bad;
350 }
351 #if 0
352 if (adv_b != NULL)
353 adv_attach(adv_b);
354 #endif
355
356 return 0;
357
358 bad:
359 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
360 bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
361 return ENXIO;
362 }
363
364 static device_method_t adv_eisa_methods[] = {
365 /* Device interface */
366 DEVMETHOD(device_probe, adv_eisa_probe),
367 DEVMETHOD(device_attach, adv_eisa_attach),
368 { 0, 0 }
369 };
370
371 static driver_t adv_eisa_driver = {
372 "adv", adv_eisa_methods, sizeof(struct adv_softc)
373 };
374
375 static devclass_t adv_eisa_devclass;
376 DRIVER_MODULE(adv, eisa, adv_eisa_driver, adv_eisa_devclass, 0, 0);
377 MODULE_DEPEND(adv, eisa, 1, 1, 1);
378