1 /*
2 * Device probe and attach routines for the following
3 * Advanced Systems Inc. SCSI controllers:
4 *
5 * Connectivity Products:
6 * ABP510/5150 - Bus-Master ISA (240 CDB) *
7 * ABP5140 - Bus-Master ISA PnP (16 CDB) * **
8 * ABP5142 - Bus-Master ISA PnP with floppy (16 CDB) ***
9 *
10 * Single Channel Products:
11 * ABP542 - Bus-Master ISA with floppy (240 CDB)
12 * ABP842 - Bus-Master VL (240 CDB)
13 *
14 * Dual Channel Products:
15 * ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel)
16 *
17 * * This board has been shipped by HP with the 4020i CD-R drive.
18 * The board has no BIOS so it cannot control a boot device, but
19 * it can control any secondary SCSI device.
20 * ** This board has been sold by SIIG as the i540 SpeedMaster.
21 * *** This board has been sold by SIIG as the i542 SpeedMaster.
22 *
23 * Copyright (c) 1996, 1997 Justin T. Gibbs.
24 * All rights reserved.
25 *
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
28 * are met:
29 * 1. Redistributions of source code must retain the above copyright
30 * notice, this list of conditions, and the following disclaimer,
31 * without modification, immediately at the beginning of the file.
32 * 2. The name of the author may not be used to endorse or promote products
33 * derived from this software without specific prior written permission.
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
36 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
38 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
39 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
40 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
41 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
42 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
43 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
44 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
45 * SUCH DAMAGE.
46 */
47
48 #include <sys/cdefs.h>
49 __FBSDID("$FreeBSD: releng/5.2/sys/dev/advansys/adv_isa.c 119418 2003-08-24 17:55:58Z obrien $");
50
51 #include <sys/param.h>
52 #include <sys/systm.h>
53 #include <sys/kernel.h>
54 #include <sys/lock.h>
55 #include <sys/mutex.h>
56
57 #include <machine/bus_pio.h>
58 #include <machine/bus.h>
59 #include <machine/resource.h>
60 #include <sys/bus.h>
61 #include <sys/rman.h>
62
63 #include <isa/isavar.h>
64
65 #include <dev/advansys/advansys.h>
66
67 #include <cam/scsi/scsi_all.h>
68
69 #define ADV_ISA_MAX_DMA_ADDR (0x00FFFFFFL)
70 #define ADV_ISA_MAX_DMA_COUNT (0x00FFFFFFL)
71
72 #define ADV_VL_MAX_DMA_ADDR (0x07FFFFFFL)
73 #define ADV_VL_MAX_DMA_COUNT (0x07FFFFFFL)
74
75 /*
76 * The overrun buffer shared amongst all ISA/VL adapters.
77 */
78 static u_int8_t* 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 /* Possible port addresses an ISA or VL adapter can live at */
84 static u_int16_t adv_isa_ioports[] =
85 {
86 0x100,
87 0x110, /* First selection in BIOS setup */
88 0x120,
89 0x130, /* Second selection in BIOS setup */
90 0x140,
91 0x150, /* Third selection in BIOS setup */
92 0x190, /* Fourth selection in BIOS setup */
93 0x210, /* Fifth selection in BIOS setup */
94 0x230, /* Sixth selection in BIOS setup */
95 0x250, /* Seventh selection in BIOS setup */
96 0x330 /* Eighth and default selection in BIOS setup */
97 };
98
99 #define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
100
101 static int adv_isa_probe(device_t dev);
102 static int adv_isa_attach(device_t dev);
103 static void adv_set_isapnp_wait_for_key(void);
104 static int adv_get_isa_dma_channel(struct adv_softc *adv);
105 static int adv_set_isa_dma_settings(struct adv_softc *adv);
106
107 static int
108 adv_isa_probe(device_t dev)
109 {
110 int port_index;
111 int max_port_index;
112 u_long iobase, iocount, irq;
113 int user_iobase = 0;
114 int rid = 0;
115 void *ih;
116 struct resource *iores, *irqres;
117
118 /*
119 * Default to scanning all possible device locations.
120 */
121 port_index = 0;
122 max_port_index = MAX_ISA_IOPORT_INDEX;
123
124 if (bus_get_resource(dev, SYS_RES_IOPORT, 0, &iobase, &iocount) == 0) {
125 user_iobase = 1;
126 for (;port_index <= max_port_index; port_index++)
127 if (iobase <= adv_isa_ioports[port_index])
128 break;
129 if ((port_index > max_port_index)
130 || (iobase != adv_isa_ioports[port_index])) {
131 if (bootverbose)
132 printf("adv%d: Invalid baseport of 0x%lx specified. "
133 "Nearest valid baseport is 0x%x. Failing "
134 "probe.\n", device_get_unit(dev), iobase,
135 (port_index <= max_port_index) ?
136 adv_isa_ioports[port_index] :
137 adv_isa_ioports[max_port_index]);
138 return ENXIO;
139 }
140 max_port_index = port_index;
141 }
142
143 /* Perform the actual probing */
144 adv_set_isapnp_wait_for_key();
145 for (;port_index <= max_port_index; port_index++) {
146 u_int16_t port_addr = adv_isa_ioports[port_index];
147 bus_size_t maxsegsz;
148 bus_size_t maxsize;
149 bus_addr_t lowaddr;
150 int error;
151 struct adv_softc *adv;
152
153 if (port_addr == 0)
154 /* Already been attached */
155 continue;
156
157 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, port_addr, 1))
158 continue;
159
160 /* XXX what is the real portsize? */
161 iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
162 RF_ACTIVE);
163 if (iores == NULL)
164 continue;
165
166 if (adv_find_signature(rman_get_bustag(iores),
167 rman_get_bushandle(iores)) == 0) {
168 bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
169 continue;
170 }
171
172 /*
173 * Got one. Now allocate our softc
174 * and see if we can initialize the card.
175 */
176 adv = adv_alloc(dev, rman_get_bustag(iores),
177 rman_get_bushandle(iores));
178 if (adv == NULL) {
179 bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
180 break;
181 }
182
183 /*
184 * Stop the chip.
185 */
186 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
187 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
188 /*
189 * Determine the chip version.
190 */
191 adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
192 if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
193 && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
194 adv->type = ADV_VL;
195 maxsegsz = ADV_VL_MAX_DMA_COUNT;
196 maxsize = BUS_SPACE_MAXSIZE_32BIT;
197 lowaddr = ADV_VL_MAX_DMA_ADDR;
198 bus_delete_resource(dev, SYS_RES_DRQ, 0);
199 } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
200 && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
201 if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
202 adv->type = ADV_ISAPNP;
203 ADV_OUTB(adv, ADV_REG_IFC,
204 ADV_IFC_INIT_DEFAULT);
205 } else {
206 adv->type = ADV_ISA;
207 }
208 maxsegsz = ADV_ISA_MAX_DMA_COUNT;
209 maxsize = BUS_SPACE_MAXSIZE_24BIT;
210 lowaddr = ADV_ISA_MAX_DMA_ADDR;
211 adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
212 adv->isa_dma_channel = adv_get_isa_dma_channel(adv);
213 bus_set_resource(dev, SYS_RES_DRQ, 0,
214 adv->isa_dma_channel, 1);
215 } else {
216 panic("advisaprobe: Unknown card revision\n");
217 }
218
219 /*
220 * Allocate a parent dmatag for all tags created
221 * by the MI portions of the advansys driver
222 */
223 /* XXX Should be a child of the ISA bus dma tag */
224 error = bus_dma_tag_create(
225 /* parent */ NULL,
226 /* alignemnt */ 1,
227 /* boundary */ 0,
228 /* lowaddr */ lowaddr,
229 /* highaddr */ BUS_SPACE_MAXADDR,
230 /* filter */ NULL,
231 /* filterarg */ NULL,
232 /* maxsize */ maxsize,
233 /* nsegments */ ~0,
234 /* maxsegsz */ maxsegsz,
235 /* flags */ 0,
236 /* lockfunc */ busdma_lock_mutex,
237 /* lockarg */ &Giant,
238 &adv->parent_dmat);
239
240 if (error != 0) {
241 printf("%s: Could not allocate DMA tag - error %d\n",
242 adv_name(adv), error);
243 adv_free(adv);
244 bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
245 break;
246 }
247
248 adv->init_level += 2;
249
250 if (overrun_buf == NULL) {
251 /* Need to allocate our overrun buffer */
252 if (bus_dma_tag_create(
253 /* parent */ adv->parent_dmat,
254 /* alignment */ 8,
255 /* boundary */ 0,
256 /* lowaddr */ ADV_ISA_MAX_DMA_ADDR,
257 /* highaddr */ BUS_SPACE_MAXADDR,
258 /* filter */ NULL,
259 /* filterarg */ NULL,
260 /* maxsize */ ADV_OVERRUN_BSIZE,
261 /* nsegments */ 1,
262 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
263 /* flags */ 0,
264 /* lockfunc */ NULL,
265 /* lockarg */ NULL,
266 &overrun_dmat) != 0) {
267 adv_free(adv);
268 bus_release_resource(dev, SYS_RES_IOPORT, 0,
269 iores);
270 break;
271 }
272 if (bus_dmamem_alloc(overrun_dmat,
273 (void **)&overrun_buf,
274 BUS_DMA_NOWAIT,
275 &overrun_dmamap) != 0) {
276 bus_dma_tag_destroy(overrun_dmat);
277 adv_free(adv);
278 bus_release_resource(dev, SYS_RES_IOPORT, 0,
279 iores);
280 break;
281 }
282 /* And permanently map it in */
283 bus_dmamap_load(overrun_dmat, overrun_dmamap,
284 overrun_buf, ADV_OVERRUN_BSIZE,
285 adv_map, &overrun_physbase,
286 /*flags*/0);
287 }
288
289 adv->overrun_physbase = overrun_physbase;
290
291 if (adv_init(adv) != 0) {
292 bus_dmamap_unload(overrun_dmat, overrun_dmamap);
293 bus_dmamem_free(overrun_dmat, overrun_buf,
294 overrun_dmamap);
295 bus_dma_tag_destroy(overrun_dmat);
296 adv_free(adv);
297 bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
298 break;
299 }
300
301 switch (adv->type) {
302 case ADV_ISAPNP:
303 if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG) {
304 adv->bug_fix_control
305 |= ADV_BUG_FIX_ASYN_USE_SYN;
306 adv->fix_asyn_xfer = ~0;
307 }
308 /* Fall Through */
309 case ADV_ISA:
310 adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
311 adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
312 adv_set_isa_dma_settings(adv);
313 break;
314
315 case ADV_VL:
316 adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
317 adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
318 break;
319 default:
320 panic("advisaprobe: Invalid card type\n");
321 }
322
323 /* Determine our IRQ */
324 if (bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, NULL))
325 bus_set_resource(dev, SYS_RES_IRQ, 0,
326 adv_get_chip_irq(adv), 1);
327 else
328 adv_set_chip_irq(adv, irq);
329
330 irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
331 RF_ACTIVE);
332 if (irqres == NULL ||
333 bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY,
334 adv_intr, adv, &ih)) {
335 bus_dmamap_unload(overrun_dmat, overrun_dmamap);
336 bus_dmamem_free(overrun_dmat, overrun_buf,
337 overrun_dmamap);
338 bus_dma_tag_destroy(overrun_dmat);
339 adv_free(adv);
340 bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
341 break;
342 }
343
344 /* Mark as probed */
345 adv_isa_ioports[port_index] = 0;
346 return 0;
347 }
348
349 if (user_iobase)
350 bus_set_resource(dev, SYS_RES_IOPORT, 0, iobase, iocount);
351 else
352 bus_delete_resource(dev, SYS_RES_IOPORT, 0);
353
354 return ENXIO;
355 }
356
357 static int
358 adv_isa_attach(device_t dev)
359 {
360 struct adv_softc *adv = device_get_softc(dev);
361
362 return (adv_attach(adv));
363 }
364
365 static int
366 adv_get_isa_dma_channel(struct adv_softc *adv)
367 {
368 int channel;
369
370 channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
371 if (channel == 0x03)
372 return (0);
373 else if (channel == 0x00)
374 return (7);
375 return (channel + 4);
376 }
377
378 static int
379 adv_set_isa_dma_settings(struct adv_softc *adv)
380 {
381 u_int16_t cfg_lsw;
382 u_int8_t value;
383
384 if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
385 if (adv->isa_dma_channel == 7)
386 value = 0x00;
387 else
388 value = adv->isa_dma_channel - 4;
389 cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
390 & ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
391 cfg_lsw |= value;
392 ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
393
394 adv->isa_dma_speed &= 0x07;
395 adv_set_bank(adv, 1);
396 ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
397 adv_set_bank(adv, 0);
398 isa_dmacascade(adv->isa_dma_channel);
399 }
400 return (0);
401 }
402
403 static void
404 adv_set_isapnp_wait_for_key(void)
405 {
406 static int isapnp_wait_set = 0;
407 if (isapnp_wait_set == 0) {
408 outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
409 outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
410 isapnp_wait_set++;
411 }
412 }
413
414 static device_method_t adv_isa_methods[] = {
415 /* Device interface */
416 DEVMETHOD(device_probe, adv_isa_probe),
417 DEVMETHOD(device_attach, adv_isa_attach),
418 { 0, 0 }
419 };
420
421 static driver_t adv_isa_driver = {
422 "adv", adv_isa_methods, sizeof(struct adv_softc)
423 };
424
425 static devclass_t adv_isa_devclass;
426 DRIVER_MODULE(adv, isa, adv_isa_driver, adv_isa_devclass, 0, 0);
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