FreeBSD/Linux Kernel Cross Reference
sys/pccard/pcic_isa.c
1 /*
2 * Copyright (c) 2001 M. Warner Losh. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * $FreeBSD: releng/5.2/sys/pccard/pcic_isa.c 116238 2003-06-12 04:46:43Z imp $
25 */
26
27 #define OBSOLETE_IN_6
28
29 #include <sys/param.h>
30 #include <sys/bus.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
33 #include <sys/sysctl.h>
34 #include <sys/systm.h>
35
36 #include <pccard/i82365.h>
37 #include <pccard/cardinfo.h>
38 #include <pccard/slot.h>
39 #include <pccard/pcicvar.h>
40
41 /* Get pnp IDs */
42 #include <isa/isavar.h>
43 #include <dev/pcic/i82365reg.h>
44
45 #include <dev/pccard/pccardvar.h>
46 #include "card_if.h"
47
48 static struct isa_pnp_id pcic_ids[] = {
49 {PCIC_PNP_ACTIONTEC, NULL}, /* AEI0218 */
50 {PCIC_PNP_IBM3765, NULL}, /* IBM3765 */
51 {PCIC_PNP_82365, NULL}, /* PNP0E00 */
52 {PCIC_PNP_CL_PD6720, NULL}, /* PNP0E01 */
53 {PCIC_PNP_VLSI_82C146, NULL}, /* PNP0E02 */
54 {PCIC_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */
55 {PCIC_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */
56 {PCIC_NEC_PC9801_102, NULL}, /* NEC8091 */
57 {PCIC_NEC_PC9821RA_E01, NULL}, /* NEC8121 */
58 {0}
59 };
60
61 static struct {
62 const char *name;
63 u_int32_t flags;
64 } bridges[] = {
65 { "Intel i82365SL-A/B", PCIC_AB_POWER},
66 { "IBM PCIC", PCIC_AB_POWER},
67 { "VLSI 82C146", PCIC_AB_POWER},
68 { "Cirrus logic 6722", PCIC_PD_POWER},
69 { "Cirrus logic 6710", PCIC_PD_POWER},
70 { "Vadem 365", PCIC_VG_POWER},
71 { "Vadem 465", PCIC_VG_POWER},
72 { "Vadem 468", PCIC_VG_POWER},
73 { "Vadem 469", PCIC_VG_POWER},
74 { "Ricoh RF5C296", PCIC_RICOH_POWER},
75 { "Ricoh RF5C396", PCIC_RICOH_POWER},
76 { "IBM KING", PCIC_KING_POWER},
77 { "Intel i82365SL-DF", PCIC_DF_POWER}
78 };
79
80 static pcic_intr_way_t pcic_isa_intr_way;
81 static pcic_init_t pcic_isa_init;
82
83 struct pcic_chip pcic_isa_chip = {
84 pcic_isa_intr_way,
85 pcic_isa_intr_way,
86 pcic_isa_mapirq,
87 pcic_isa_init
88 };
89
90 /*
91 * Look for an Intel PCIC (or compatible).
92 * For each available slot, allocate a PC-CARD slot.
93 */
94 static int
95 pcic_isa_probe(device_t dev)
96 {
97 int slotnum, validslots = 0;
98 struct pcic_slot *sp;
99 struct pcic_slot *sp0;
100 struct pcic_slot *sp1;
101 struct pcic_slot spsave;
102 unsigned char c;
103 struct resource *r;
104 int rid;
105 struct pcic_softc *sc;
106 int error;
107
108 /* Check isapnp ids */
109 error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids);
110 if (error == ENXIO)
111 return (ENXIO);
112
113 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
114 bus_set_resource(dev, SYS_RES_IOPORT, 0, PCIC_PORT_0,
115 PCIC_NPORT);
116 rid = 0;
117 r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
118 if (!r) {
119 if (bootverbose)
120 device_printf(dev, "Cannot get I/O range\n");
121 return (ENOMEM);
122 }
123
124 sc = (struct pcic_softc *) device_get_softc(dev);
125 sc->dev = dev;
126 sp = &sc->slots[0];
127 for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
128 /*
129 * Initialise the PCIC slot table.
130 */
131 sp->getb = pcic_getb_io;
132 sp->putb = pcic_putb_io;
133 sp->bst = rman_get_bustag(r);
134 sp->bsh = rman_get_bushandle(r);
135 sp->offset = slotnum * PCIC_SLOT_SIZE;
136 sp->controller = -1;
137 }
138
139 /*
140 * Prescan for the broken VLSI chips.
141 *
142 * According to the Linux PCMCIA code from David Hinds,
143 * working chipsets return 0x84 from their (correct) ID ports,
144 * while the broken ones would need to be probed at the new
145 * offset we set after we assume it's broken.
146 *
147 * Note: because of this, we may incorrectly detect a single
148 * slot vlsi chip as an i82365sl step D. I cannot find a
149 * datasheet for the affected chip, so that's the best we can
150 * do for now.
151 */
152 sp0 = &sc->slots[0];
153 sp1 = &sc->slots[1];
154 if (sp0->getb(sp0, PCIC_ID_REV) == PCIC_VLSI82C146 &&
155 sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
156 spsave = *sp1;
157 sp1->bsh += 4;
158 sp1->offset = PCIC_SLOT_SIZE << 1;
159 if (sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
160 *sp1 = spsave;
161 } else {
162 sp0->controller = PCIC_VLSI;
163 sp1->controller = PCIC_VLSI;
164 }
165 }
166
167 /*
168 * Look for normal chipsets here.
169 */
170 sp = &sc->slots[0];
171 for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
172 /*
173 * see if there's a PCMCIA controller here
174 * Intel PCMCIA controllers use 0x82 and 0x83
175 * IBM clone chips use 0x88 and 0x89, apparently
176 */
177 c = sp->getb(sp, PCIC_ID_REV);
178 sp->revision = -1;
179 switch(c) {
180 /*
181 * 82365 or clones.
182 */
183 case PCIC_INTEL0:
184 case PCIC_INTEL1:
185 sp->controller = PCIC_I82365;
186 sp->revision = c & 1;
187 /*
188 * Check for Vadem chips by unlocking their extra
189 * registers and looking for valid ID. Bit 3 in
190 * the ID register is normally 0, except when
191 * PCIC_VADEMREV is set. Other bridges appear
192 * to ignore this frobbing.
193 */
194 bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x0E);
195 bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x37);
196 pcic_setb(sp, PCIC_VMISC, PCIC_VADEMREV);
197 c = sp->getb(sp, PCIC_ID_REV);
198 if (c & 0x08) {
199 switch (sp->revision = c & 7) {
200 case 1:
201 sp->controller = PCIC_VG365;
202 break;
203 case 2:
204 sp->controller = PCIC_VG465;
205 break;
206 case 3:
207 sp->controller = PCIC_VG468;
208 break;
209 default:
210 sp->controller = PCIC_VG469;
211 break;
212 }
213 pcic_clrb(sp, PCIC_VMISC, PCIC_VADEMREV);
214 }
215
216 /*
217 * Check for RICOH RF5C[23]96 PCMCIA Controller
218 */
219 c = sp->getb(sp, PCIC_RICOH_ID);
220 if (c == PCIC_RID_396)
221 sp->controller = PCIC_RF5C396;
222 else if (c == PCIC_RID_296)
223 sp->controller = PCIC_RF5C296;
224
225 break;
226 /*
227 * Intel i82365sl-DF step or maybe a vlsi 82c146
228 * we detected the vlsi case earlier, so if the controller
229 * isn't set, we know it is an i82365sl step D.
230 */
231 case PCIC_INTEL2:
232 if (sp->controller == -1)
233 sp->controller = PCIC_I82365SL_DF;
234 break;
235 case PCIC_IBM1:
236 case PCIC_IBM2:
237 sp->controller = PCIC_IBM;
238 sp->revision = c & 1;
239 break;
240 case PCIC_IBM3:
241 sp->controller = PCIC_IBM_KING;
242 sp->revision = c & 1;
243 break;
244 default:
245 continue;
246 }
247 /*
248 * Check for Cirrus logic chips.
249 */
250 sp->putb(sp, PCIC_CLCHIP, 0);
251 c = sp->getb(sp, PCIC_CLCHIP);
252 if ((c & PCIC_CLC_TOGGLE) == PCIC_CLC_TOGGLE) {
253 c = sp->getb(sp, PCIC_CLCHIP);
254 if ((c & PCIC_CLC_TOGGLE) == 0) {
255 if (c & PCIC_CLC_DUAL)
256 sp->controller = PCIC_PD6722;
257 else
258 sp->controller = PCIC_PD6710;
259 sp->revision = 8 - ((c & 0x1F) >> 2);
260 }
261 }
262 device_set_desc(dev, bridges[(int) sp->controller].name);
263 sc->flags = bridges[(int) sp->controller].flags;
264 /*
265 * OK it seems we have a PCIC or lookalike.
266 * Allocate a slot and initialise the data structures.
267 */
268 validslots++;
269 sp->slt = (struct slot *) 1;
270 /*
271 * Modem cards send the speaker audio (dialing noises)
272 * to the host's speaker. Cirrus Logic PCIC chips must
273 * enable this. There is also a Low Power Dynamic Mode bit
274 * that claims to reduce power consumption by 30%, so
275 * enable it and hope for the best.
276 */
277 if (sp->controller == PCIC_PD6722) {
278 pcic_setb(sp, PCIC_MISC1, PCIC_MISC1_SPEAKER);
279 pcic_setb(sp, PCIC_MISC2, PCIC_LPDM_EN);
280 }
281 }
282 bus_release_resource(dev, SYS_RES_IOPORT, rid, r);
283 return (validslots ? 0 : ENXIO);
284 }
285
286 static int
287 pcic_isa_attach(device_t dev)
288 {
289 struct pcic_softc *sc;
290 int rid;
291 struct resource *r;
292 int irq = 0;
293 int error;
294
295 sc = device_get_softc(dev);
296 rid = 0;
297 r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
298 if (!r) {
299 pcic_dealloc(dev);
300 return (ENXIO);
301 }
302 sc->iorid = rid;
303 sc->iores = r;
304 sc->csc_route = pcic_iw_isa;
305 sc->func_route = pcic_iw_isa;
306 sc->chip = &pcic_isa_chip;
307
308 rid = 0;
309 r = NULL;
310 r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
311 if (r == NULL && pcic_override_irq != 0) {
312 irq = pcic_override_irq;
313 r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq, irq, 1,
314 RF_ACTIVE);
315 }
316 if (r && ((1 << (rman_get_start(r))) & PCIC_INT_MASK_ALLOWED) == 0) {
317 device_printf(dev,
318 "Hardware does not support irq %d, trying polling.\n",
319 irq);
320 bus_release_resource(dev, SYS_RES_IRQ, rid, r);
321 irq = 0;
322 r = NULL;
323 }
324 sc->irqrid = rid;
325 sc->irqres = r;
326 irq = 0;
327 if (r != NULL) {
328 error = bus_setup_intr(dev, r, INTR_TYPE_MISC,
329 pcic_isa_intr, (void *) sc, &sc->ih);
330 if (error) {
331 pcic_dealloc(dev);
332 return (error);
333 }
334 irq = rman_get_start(r);
335 device_printf(dev, "management irq %d\n", irq);
336 }
337 sc->irq = irq;
338 if (irq == 0) {
339 sc->slot_poll = pcic_timeout;
340 sc->timeout_ch = timeout(sc->slot_poll, (void *) sc, hz/2);
341 device_printf(dev, "Polling mode\n");
342 }
343
344 return (pcic_attach(dev));
345 }
346
347 /*
348 * ISA cards can only do ISA interrupts. There's no need to do
349 * anything but check args for sanity.
350 */
351 static int
352 pcic_isa_intr_way(struct pcic_slot *sp, enum pcic_intr_way iw)
353 {
354 if (iw != pcic_iw_isa)
355 return (EINVAL);
356 return (0);
357 }
358
359 /*
360 * No speicial initialization is necesary for ISA cards.
361 */
362 static void
363 pcic_isa_init(device_t dev)
364 {
365 }
366
367 static device_method_t pcic_methods[] = {
368 /* Device interface */
369 DEVMETHOD(device_probe, pcic_isa_probe),
370 DEVMETHOD(device_attach, pcic_isa_attach),
371 DEVMETHOD(device_detach, bus_generic_detach),
372 DEVMETHOD(device_shutdown, bus_generic_shutdown),
373 DEVMETHOD(device_suspend, bus_generic_suspend),
374 DEVMETHOD(device_resume, bus_generic_resume),
375
376 /* Bus interface */
377 DEVMETHOD(bus_print_child, bus_generic_print_child),
378 DEVMETHOD(bus_alloc_resource, pcic_alloc_resource),
379 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
380 DEVMETHOD(bus_activate_resource, pcic_activate_resource),
381 DEVMETHOD(bus_deactivate_resource, pcic_deactivate_resource),
382 DEVMETHOD(bus_setup_intr, pcic_setup_intr),
383 DEVMETHOD(bus_teardown_intr, pcic_teardown_intr),
384
385 /* Card interface */
386 DEVMETHOD(card_set_res_flags, pcic_set_res_flags),
387 DEVMETHOD(card_get_res_flags, pcic_get_res_flags),
388 DEVMETHOD(card_set_memory_offset, pcic_set_memory_offset),
389 DEVMETHOD(card_get_memory_offset, pcic_get_memory_offset),
390
391 { 0, 0 }
392 };
393
394 static driver_t pcic_driver = {
395 "pcic",
396 pcic_methods,
397 sizeof(struct pcic_softc)
398 };
399
400 DRIVER_MODULE(pcic, isa, pcic_driver, pcic_devclass, 0, 0);
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