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 *
| 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 *
|
77
78/* Possible port addresses an ISA or VL adapter can live at */
79u_int16_t adv_isa_ioports[] =
80{
81 0x100,
82 0x110, /* First selection in BIOS setup */
83 0x120,
84 0x130, /* Second selection in BIOS setup */
85 0x140,
86 0x150, /* Third selection in BIOS setup */
87 0x190, /* Fourth selection in BIOS setup */
88 0x210, /* Fifth selection in BIOS setup */
89 0x230, /* Sixth selection in BIOS setup */
90 0x250, /* Seventh selection in BIOS setup */
91 0x330 /* Eighth and default selection in BIOS setup */
92};
93
94#define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
95
96static int advisaprobe(struct isa_device *id);
97static int advisaattach(struct isa_device *id);
98static void adv_set_isapnp_wait_for_key(void);
99static int adv_get_isa_dma_channel(struct adv_softc *adv);
100static int adv_set_isa_dma_settings(struct adv_softc *adv);
101
102void adv_isa_intr(void *unit);
103
104struct isa_driver advdriver =
105{
106 advisaprobe,
107 advisaattach,
108 "adv"
109};
110
111static int
112advisaprobe(struct isa_device *id)
113{
114 int port_index;
115 int max_port_index;
116
117 /*
118 * Default to scanning all possible device locations.
119 */
120 port_index = 0;
121 max_port_index = MAX_ISA_IOPORT_INDEX;
122
123 if (id->id_iobase > 0) {
124 for (;port_index <= max_port_index; port_index++)
125 if (id->id_iobase <= adv_isa_ioports[port_index])
126 break;
127 if ((port_index > max_port_index)
128 || (id->id_iobase != adv_isa_ioports[port_index])) {
129 printf("adv%d: Invalid baseport of 0x%x specified. "
130 "Neerest valid baseport is 0x%x. Failing "
131 "probe.\n", id->id_unit, id->id_iobase,
132 (port_index <= max_port_index) ?
133 adv_isa_ioports[port_index] :
134 adv_isa_ioports[max_port_index]);
135 return 0;
136 }
137 max_port_index = port_index;
138 }
139
140 /* Perform the actual probing */
141 adv_set_isapnp_wait_for_key();
142 for (;port_index <= max_port_index; port_index++) {
143 u_int16_t port_addr = adv_isa_ioports[port_index];
144 bus_size_t maxsegsz;
145 bus_size_t maxsize;
146 bus_addr_t lowaddr;
147 int error;
148
149 if (port_addr == 0)
150 /* Already been attached */
151 continue;
152 id->id_iobase = port_addr;
153 if (haveseen_isadev(id, CC_IOADDR | CC_QUIET))
154 continue;
155
156 if (adv_find_signature(I386_BUS_SPACE_IO, port_addr)) {
157 /*
158 * Got one. Now allocate our softc
159 * and see if we can initialize the card.
160 */
161 struct adv_softc *adv;
162 adv = adv_alloc(id->id_unit, I386_BUS_SPACE_IO,
163 port_addr);
164 if (adv == NULL)
165 return (0);
166
167 adv_unit++;
168
169 id->id_iobase = adv->bsh;
170
171 /*
172 * Stop the chip.
173 */
174 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
175 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
176 /*
177 * Determine the chip version.
178 */
179 adv->chip_version = ADV_INB(adv,
180 ADV_NONEISA_CHIP_REVISION);
181 if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
182 && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
183 adv->type = ADV_VL;
184 maxsegsz = ADV_VL_MAX_DMA_COUNT;
185 maxsize = BUS_SPACE_MAXSIZE_32BIT;
186 lowaddr = ADV_VL_MAX_DMA_ADDR;
187 id->id_drq = -1;
188 } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
189 && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
190 if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
191 adv->type = ADV_ISAPNP;
192 ADV_OUTB(adv, ADV_REG_IFC,
193 ADV_IFC_INIT_DEFAULT);
194 } else {
195 adv->type = ADV_ISA;
196 }
197 maxsegsz = ADV_ISA_MAX_DMA_COUNT;
198 maxsize = BUS_SPACE_MAXSIZE_24BIT;
199 lowaddr = ADV_ISA_MAX_DMA_ADDR;
200 adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
201 adv->isa_dma_channel =
202 adv_get_isa_dma_channel(adv);
203 id->id_drq = adv->isa_dma_channel;
204 } else {
205 panic("advisaprobe: Unknown card revision\n");
206 }
207
208 /*
209 * Allocate a parent dmatag for all tags created
210 * by the MI portions of the advansys driver
211 */
212 /* XXX Should be a child of the ISA bus dma tag */
213 error =
214 bus_dma_tag_create(/*parent*/NULL,
215 /*alignemnt*/0,
216 /*boundary*/0,
217 lowaddr,
218 /*highaddr*/BUS_SPACE_MAXADDR,
219 /*filter*/NULL,
220 /*filterarg*/NULL,
221 maxsize,
222 /*nsegs*/BUS_SPACE_UNRESTRICTED,
223 maxsegsz,
224 /*flags*/0,
225 &adv->parent_dmat);
226
227 if (error != 0) {
228 printf("%s: Could not allocate DMA tag - error %d\n",
229 adv_name(adv), error);
230 adv_free(adv);
231 return (0);
232 }
233
234 adv->init_level++;
235
236 if (overrun_buf == NULL) {
237 /* Need to allocate our overrun buffer */
238 if (bus_dma_tag_create(adv->parent_dmat,
239 /*alignment*/8,
240 /*boundary*/0,
241 ADV_ISA_MAX_DMA_ADDR,
242 BUS_SPACE_MAXADDR,
243 /*filter*/NULL,
244 /*filterarg*/NULL,
245 ADV_OVERRUN_BSIZE,
246 /*nsegments*/1,
247 BUS_SPACE_MAXSIZE_32BIT,
248 /*flags*/0,
249 &overrun_dmat) != 0) {
250 adv_free(adv);
251 return (0);
252 }
253 if (bus_dmamem_alloc(overrun_dmat,
254 (void **)&overrun_buf,
255 BUS_DMA_NOWAIT,
256 &overrun_dmamap) != 0) {
257 bus_dma_tag_destroy(overrun_dmat);
258 adv_free(adv);
259 return (0);
260 }
261 /* And permanently map it in */
262 bus_dmamap_load(overrun_dmat, overrun_dmamap,
263 overrun_buf, ADV_OVERRUN_BSIZE,
264 adv_map, &overrun_physbase,
265 /*flags*/0);
266 }
267
268 adv->overrun_physbase = overrun_physbase;
269
270 if (adv_init(adv) != 0) {
271 adv_free(adv);
272 return (0);
273 }
274
275 switch (adv->type) {
276 case ADV_ISAPNP:
277 if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG){
278 adv->bug_fix_control
279 |= ADV_BUG_FIX_ASYN_USE_SYN;
280 adv->fix_asyn_xfer = ~0;
281 }
282 /* Fall Through */
283 case ADV_ISA:
284 adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
285 adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
286 adv_set_isa_dma_settings(adv);
287 break;
288
289 case ADV_VL:
290 adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
291 adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
292 break;
293 default:
294 panic("advisaprobe: Invalid card type\n");
295 }
296
297 /* Determine our IRQ */
298 if (id->id_irq == 0 /* irq ? */)
299 id->id_irq = 1 << adv_get_chip_irq(adv);
300 else
301 adv_set_chip_irq(adv, ffs(id->id_irq) - 1);
302
303 id->id_intr = adv_isa_intr;
304
305 /* Mark as probed */
306 adv_isa_ioports[port_index] = 0;
307 return 1;
308 }
309 }
310
311 return 0;
312}
313
314static int
315advisaattach(struct isa_device *id)
316{
317 struct adv_softc *adv;
318
319 adv = advsoftcs[id->id_unit];
320 return (adv_attach(adv));
321}
322
323static int
324adv_get_isa_dma_channel(struct adv_softc *adv)
325{
326 int channel;
327
328 channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
329 if (channel == 0x03)
330 return (0);
331 else if (channel == 0x00)
332 return (7);
333 return (channel + 4);
334}
335
336static int
337adv_set_isa_dma_settings(struct adv_softc *adv)
338{
339 u_int16_t cfg_lsw;
340 u_int8_t value;
341
342 if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
343 if (adv->isa_dma_channel == 7)
344 value = 0x00;
345 else
346 value = adv->isa_dma_channel - 4;
347 cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
348 & ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
349 cfg_lsw |= value;
350 ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
351
352 adv->isa_dma_speed &= 0x07;
353 adv_set_bank(adv, 1);
354 ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
355 adv_set_bank(adv, 0);
356 isa_dmacascade(adv->isa_dma_channel);
357 }
358 return (0);
359}
360
361static void
362adv_set_isapnp_wait_for_key(void)
363{
364 static int isapnp_wait_set = 0;
365 if (isapnp_wait_set == 0) {
366 outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
367 outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
368 isapnp_wait_set++;
369 }
370 return;
371}
372
373/*
374 * Handle an ISA interrupt.
375 * XXX should go away as soon as ISA interrupt handlers
376 * take a (void *) arg.
377 */
378void
379adv_isa_intr(void *unit)
380{
381 struct adv_softc *arg = advsoftcs[(int)unit];
382 adv_intr((void *)arg);
383}
| 77
78/* Possible port addresses an ISA or VL adapter can live at */
79u_int16_t adv_isa_ioports[] =
80{
81 0x100,
82 0x110, /* First selection in BIOS setup */
83 0x120,
84 0x130, /* Second selection in BIOS setup */
85 0x140,
86 0x150, /* Third selection in BIOS setup */
87 0x190, /* Fourth selection in BIOS setup */
88 0x210, /* Fifth selection in BIOS setup */
89 0x230, /* Sixth selection in BIOS setup */
90 0x250, /* Seventh selection in BIOS setup */
91 0x330 /* Eighth and default selection in BIOS setup */
92};
93
94#define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
95
96static int advisaprobe(struct isa_device *id);
97static int advisaattach(struct isa_device *id);
98static void adv_set_isapnp_wait_for_key(void);
99static int adv_get_isa_dma_channel(struct adv_softc *adv);
100static int adv_set_isa_dma_settings(struct adv_softc *adv);
101
102void adv_isa_intr(void *unit);
103
104struct isa_driver advdriver =
105{
106 advisaprobe,
107 advisaattach,
108 "adv"
109};
110
111static int
112advisaprobe(struct isa_device *id)
113{
114 int port_index;
115 int max_port_index;
116
117 /*
118 * Default to scanning all possible device locations.
119 */
120 port_index = 0;
121 max_port_index = MAX_ISA_IOPORT_INDEX;
122
123 if (id->id_iobase > 0) {
124 for (;port_index <= max_port_index; port_index++)
125 if (id->id_iobase <= adv_isa_ioports[port_index])
126 break;
127 if ((port_index > max_port_index)
128 || (id->id_iobase != adv_isa_ioports[port_index])) {
129 printf("adv%d: Invalid baseport of 0x%x specified. "
130 "Neerest valid baseport is 0x%x. Failing "
131 "probe.\n", id->id_unit, id->id_iobase,
132 (port_index <= max_port_index) ?
133 adv_isa_ioports[port_index] :
134 adv_isa_ioports[max_port_index]);
135 return 0;
136 }
137 max_port_index = port_index;
138 }
139
140 /* Perform the actual probing */
141 adv_set_isapnp_wait_for_key();
142 for (;port_index <= max_port_index; port_index++) {
143 u_int16_t port_addr = adv_isa_ioports[port_index];
144 bus_size_t maxsegsz;
145 bus_size_t maxsize;
146 bus_addr_t lowaddr;
147 int error;
148
149 if (port_addr == 0)
150 /* Already been attached */
151 continue;
152 id->id_iobase = port_addr;
153 if (haveseen_isadev(id, CC_IOADDR | CC_QUIET))
154 continue;
155
156 if (adv_find_signature(I386_BUS_SPACE_IO, port_addr)) {
157 /*
158 * Got one. Now allocate our softc
159 * and see if we can initialize the card.
160 */
161 struct adv_softc *adv;
162 adv = adv_alloc(id->id_unit, I386_BUS_SPACE_IO,
163 port_addr);
164 if (adv == NULL)
165 return (0);
166
167 adv_unit++;
168
169 id->id_iobase = adv->bsh;
170
171 /*
172 * Stop the chip.
173 */
174 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
175 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
176 /*
177 * Determine the chip version.
178 */
179 adv->chip_version = ADV_INB(adv,
180 ADV_NONEISA_CHIP_REVISION);
181 if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
182 && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
183 adv->type = ADV_VL;
184 maxsegsz = ADV_VL_MAX_DMA_COUNT;
185 maxsize = BUS_SPACE_MAXSIZE_32BIT;
186 lowaddr = ADV_VL_MAX_DMA_ADDR;
187 id->id_drq = -1;
188 } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
189 && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
190 if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
191 adv->type = ADV_ISAPNP;
192 ADV_OUTB(adv, ADV_REG_IFC,
193 ADV_IFC_INIT_DEFAULT);
194 } else {
195 adv->type = ADV_ISA;
196 }
197 maxsegsz = ADV_ISA_MAX_DMA_COUNT;
198 maxsize = BUS_SPACE_MAXSIZE_24BIT;
199 lowaddr = ADV_ISA_MAX_DMA_ADDR;
200 adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
201 adv->isa_dma_channel =
202 adv_get_isa_dma_channel(adv);
203 id->id_drq = adv->isa_dma_channel;
204 } else {
205 panic("advisaprobe: Unknown card revision\n");
206 }
207
208 /*
209 * Allocate a parent dmatag for all tags created
210 * by the MI portions of the advansys driver
211 */
212 /* XXX Should be a child of the ISA bus dma tag */
213 error =
214 bus_dma_tag_create(/*parent*/NULL,
215 /*alignemnt*/0,
216 /*boundary*/0,
217 lowaddr,
218 /*highaddr*/BUS_SPACE_MAXADDR,
219 /*filter*/NULL,
220 /*filterarg*/NULL,
221 maxsize,
222 /*nsegs*/BUS_SPACE_UNRESTRICTED,
223 maxsegsz,
224 /*flags*/0,
225 &adv->parent_dmat);
226
227 if (error != 0) {
228 printf("%s: Could not allocate DMA tag - error %d\n",
229 adv_name(adv), error);
230 adv_free(adv);
231 return (0);
232 }
233
234 adv->init_level++;
235
236 if (overrun_buf == NULL) {
237 /* Need to allocate our overrun buffer */
238 if (bus_dma_tag_create(adv->parent_dmat,
239 /*alignment*/8,
240 /*boundary*/0,
241 ADV_ISA_MAX_DMA_ADDR,
242 BUS_SPACE_MAXADDR,
243 /*filter*/NULL,
244 /*filterarg*/NULL,
245 ADV_OVERRUN_BSIZE,
246 /*nsegments*/1,
247 BUS_SPACE_MAXSIZE_32BIT,
248 /*flags*/0,
249 &overrun_dmat) != 0) {
250 adv_free(adv);
251 return (0);
252 }
253 if (bus_dmamem_alloc(overrun_dmat,
254 (void **)&overrun_buf,
255 BUS_DMA_NOWAIT,
256 &overrun_dmamap) != 0) {
257 bus_dma_tag_destroy(overrun_dmat);
258 adv_free(adv);
259 return (0);
260 }
261 /* And permanently map it in */
262 bus_dmamap_load(overrun_dmat, overrun_dmamap,
263 overrun_buf, ADV_OVERRUN_BSIZE,
264 adv_map, &overrun_physbase,
265 /*flags*/0);
266 }
267
268 adv->overrun_physbase = overrun_physbase;
269
270 if (adv_init(adv) != 0) {
271 adv_free(adv);
272 return (0);
273 }
274
275 switch (adv->type) {
276 case ADV_ISAPNP:
277 if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG){
278 adv->bug_fix_control
279 |= ADV_BUG_FIX_ASYN_USE_SYN;
280 adv->fix_asyn_xfer = ~0;
281 }
282 /* Fall Through */
283 case ADV_ISA:
284 adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
285 adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
286 adv_set_isa_dma_settings(adv);
287 break;
288
289 case ADV_VL:
290 adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
291 adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
292 break;
293 default:
294 panic("advisaprobe: Invalid card type\n");
295 }
296
297 /* Determine our IRQ */
298 if (id->id_irq == 0 /* irq ? */)
299 id->id_irq = 1 << adv_get_chip_irq(adv);
300 else
301 adv_set_chip_irq(adv, ffs(id->id_irq) - 1);
302
303 id->id_intr = adv_isa_intr;
304
305 /* Mark as probed */
306 adv_isa_ioports[port_index] = 0;
307 return 1;
308 }
309 }
310
311 return 0;
312}
313
314static int
315advisaattach(struct isa_device *id)
316{
317 struct adv_softc *adv;
318
319 adv = advsoftcs[id->id_unit];
320 return (adv_attach(adv));
321}
322
323static int
324adv_get_isa_dma_channel(struct adv_softc *adv)
325{
326 int channel;
327
328 channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
329 if (channel == 0x03)
330 return (0);
331 else if (channel == 0x00)
332 return (7);
333 return (channel + 4);
334}
335
336static int
337adv_set_isa_dma_settings(struct adv_softc *adv)
338{
339 u_int16_t cfg_lsw;
340 u_int8_t value;
341
342 if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
343 if (adv->isa_dma_channel == 7)
344 value = 0x00;
345 else
346 value = adv->isa_dma_channel - 4;
347 cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
348 & ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
349 cfg_lsw |= value;
350 ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
351
352 adv->isa_dma_speed &= 0x07;
353 adv_set_bank(adv, 1);
354 ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
355 adv_set_bank(adv, 0);
356 isa_dmacascade(adv->isa_dma_channel);
357 }
358 return (0);
359}
360
361static void
362adv_set_isapnp_wait_for_key(void)
363{
364 static int isapnp_wait_set = 0;
365 if (isapnp_wait_set == 0) {
366 outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
367 outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
368 isapnp_wait_set++;
369 }
370 return;
371}
372
373/*
374 * Handle an ISA interrupt.
375 * XXX should go away as soon as ISA interrupt handlers
376 * take a (void *) arg.
377 */
378void
379adv_isa_intr(void *unit)
380{
381 struct adv_softc *arg = advsoftcs[(int)unit];
382 adv_intr((void *)arg);
383}
|