Line data Source code
1 : /* $OpenBSD: cardbus.c,v 1.51 2015/08/28 00:03:53 deraadt Exp $ */
2 : /* $NetBSD: cardbus.c,v 1.24 2000/04/02 19:11:37 mycroft Exp $ */
3 :
4 : /*
5 : * Copyright (c) 1997, 1998, 1999 and 2000
6 : * HAYAKAWA Koichi. All rights reserved.
7 : *
8 : * Redistribution and use in source and binary forms, with or without
9 : * modification, are permitted provided that the following conditions
10 : * are met:
11 : * 1. Redistributions of source code must retain the above copyright
12 : * notice, this list of conditions and the following disclaimer.
13 : * 2. Redistributions in binary form must reproduce the above copyright
14 : * notice, this list of conditions and the following disclaimer in the
15 : * documentation and/or other materials provided with the distribution.
16 : *
17 : *
18 : * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 : * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 : * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 : * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
22 : * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 : * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 : * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 : * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 : * POSSIBILITY OF SUCH DAMAGE.
29 : */
30 :
31 : #include <sys/param.h>
32 : #include <sys/systm.h>
33 : #include <sys/device.h>
34 : #include <sys/malloc.h>
35 : #include <sys/kernel.h>
36 :
37 : #include <machine/bus.h>
38 :
39 : #include <dev/cardbus/cardbusvar.h>
40 : #include <dev/pci/pcidevs.h>
41 :
42 : #include <dev/cardbus/cardbus_exrom.h>
43 :
44 : #include <dev/pci/pcivar.h> /* XXX */
45 : #include <dev/pci/pcireg.h> /* XXX */
46 :
47 : #include <dev/pcmcia/pcmciareg.h>
48 :
49 : #ifdef CARDBUS_DEBUG
50 : #define STATIC
51 : #define DPRINTF(a) printf a
52 : #else
53 : #ifdef DDB
54 : #define STATIC
55 : #else
56 : #define STATIC static
57 : #endif
58 : #define DPRINTF(a)
59 : #endif
60 :
61 : STATIC void cardbusattach(struct device *, struct device *, void *);
62 : /* STATIC int cardbusprint(void *, const char *); */
63 :
64 : STATIC int cardbusmatch(struct device *, void *, void *);
65 : STATIC int cardbussubmatch(struct device *, void *, void *);
66 : STATIC int cardbusprint(void *, const char *);
67 :
68 : typedef void (*tuple_decode_func)(u_int8_t *, int, void *);
69 :
70 : STATIC int decode_tuples(u_int8_t *, int, tuple_decode_func, void *);
71 : STATIC void parse_tuple(u_int8_t *, int, void *);
72 : #ifdef CARDBUS_DEBUG
73 : static void print_tuple(u_int8_t *, int, void *);
74 : #endif
75 :
76 : STATIC int cardbus_read_tuples(struct cardbus_attach_args *,
77 : pcireg_t, u_int8_t *, size_t);
78 :
79 : STATIC void enable_function(struct cardbus_softc *, int, int);
80 : STATIC void disable_function(struct cardbus_softc *, int);
81 :
82 :
83 : struct cfattach cardbus_ca = {
84 : sizeof(struct cardbus_softc), cardbusmatch, cardbusattach
85 : };
86 :
87 : struct cfdriver cardbus_cd = {
88 : NULL, "cardbus", DV_DULL
89 : };
90 :
91 : STATIC int
92 0 : cardbusmatch(struct device *parent, void *match, void *aux)
93 : {
94 0 : struct cfdata *cf = match;
95 0 : struct cbslot_attach_args *cba = aux;
96 :
97 0 : if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) {
98 : DPRINTF(("cardbusmatch: busname differs %s <=> %s\n",
99 : cba->cba_busname, cf->cf_driver->cd_name));
100 0 : return (0);
101 : }
102 :
103 0 : return (1);
104 0 : }
105 :
106 : STATIC void
107 0 : cardbusattach(struct device *parent, struct device *self, void *aux)
108 : {
109 0 : struct cardbus_softc *sc = (void *)self;
110 0 : struct cbslot_attach_args *cba = aux;
111 : int cdstatus;
112 :
113 0 : sc->sc_bus = cba->cba_bus;
114 0 : sc->sc_device = 0;
115 0 : sc->sc_intrline = cba->cba_intrline;
116 0 : sc->sc_cacheline = cba->cba_cacheline;
117 0 : sc->sc_lattimer = cba->cba_lattimer;
118 :
119 0 : printf(": bus %d device %d", sc->sc_bus, sc->sc_device);
120 0 : printf(" cacheline 0x%x, lattimer 0x%x\n",
121 0 : sc->sc_cacheline,sc->sc_lattimer);
122 :
123 0 : sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */
124 0 : sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */
125 0 : sc->sc_dmat = cba->cba_dmat; /* DMA tag */
126 0 : sc->sc_cc = cba->cba_cc;
127 0 : sc->sc_pc = cba->cba_pc;
128 0 : sc->sc_cf = cba->cba_cf;
129 0 : sc->sc_rbus_iot = cba->cba_rbus_iot;
130 0 : sc->sc_rbus_memt = cba->cba_rbus_memt;
131 :
132 : cdstatus = 0;
133 0 : }
134 :
135 : STATIC int
136 0 : cardbus_read_tuples(struct cardbus_attach_args *ca, pcireg_t cis_ptr,
137 : u_int8_t *tuples, size_t len)
138 : {
139 0 : struct cardbus_softc *sc = ca->ca_ct->ct_sc;
140 0 : pci_chipset_tag_t pc = ca->ca_pc;
141 0 : pcitag_t tag = ca->ca_tag;
142 : pcireg_t command;
143 : int found = 0;
144 :
145 : int i, j;
146 0 : int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK;
147 0 : bus_space_tag_t bar_tag;
148 0 : bus_space_handle_t bar_memh;
149 0 : bus_size_t bar_size;
150 0 : bus_addr_t bar_addr;
151 :
152 : int reg;
153 :
154 0 : memset(tuples, 0, len);
155 :
156 0 : cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK;
157 :
158 0 : switch (cardbus_space) {
159 : case CARDBUS_CIS_ASI_TUPLE:
160 : DPRINTF(("%s: reading CIS data from configuration space\n",
161 : sc->sc_dev.dv_xname));
162 0 : for (i = cis_ptr, j = 0; i < 0xff; i += 4) {
163 0 : u_int32_t e = pci_conf_read(pc, tag, i);
164 0 : tuples[j] = 0xff & e;
165 0 : e >>= 8;
166 0 : tuples[j + 1] = 0xff & e;
167 0 : e >>= 8;
168 0 : tuples[j + 2] = 0xff & e;
169 0 : e >>= 8;
170 0 : tuples[j + 3] = 0xff & e;
171 0 : j += 4;
172 : }
173 : found++;
174 0 : break;
175 :
176 : case CARDBUS_CIS_ASI_BAR0:
177 : case CARDBUS_CIS_ASI_BAR1:
178 : case CARDBUS_CIS_ASI_BAR2:
179 : case CARDBUS_CIS_ASI_BAR3:
180 : case CARDBUS_CIS_ASI_BAR4:
181 : case CARDBUS_CIS_ASI_BAR5:
182 : case CARDBUS_CIS_ASI_ROM:
183 0 : if (cardbus_space == CARDBUS_CIS_ASI_ROM) {
184 : reg = CARDBUS_ROM_REG;
185 : DPRINTF(("%s: reading CIS data from ROM\n",
186 : sc->sc_dev.dv_xname));
187 0 : } else {
188 0 : reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4;
189 : DPRINTF(("%s: reading CIS data from BAR%d\n",
190 : sc->sc_dev.dv_xname, cardbus_space - 1));
191 : }
192 :
193 : /* XXX zero register so mapreg_map doesn't get confused by old
194 : contents */
195 0 : pci_conf_write(pc, tag, reg, 0);
196 0 : if (Cardbus_mapreg_map(ca->ca_ct, reg,
197 : PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
198 : &bar_tag, &bar_memh, &bar_addr, &bar_size)) {
199 0 : printf("%s: can't map memory\n",
200 0 : sc->sc_dev.dv_xname);
201 0 : return (1);
202 : }
203 :
204 0 : if (cardbus_space == CARDBUS_CIS_ASI_ROM) {
205 : pcireg_t exrom;
206 : int save;
207 0 : struct cardbus_rom_image_head rom_image;
208 : struct cardbus_rom_image *p;
209 :
210 0 : save = splhigh();
211 : /* enable rom address decoder */
212 0 : exrom = pci_conf_read(pc, tag, reg);
213 0 : pci_conf_write(pc, tag, reg, exrom | 1);
214 :
215 0 : command = pci_conf_read(pc, tag,
216 : PCI_COMMAND_STATUS_REG);
217 0 : pci_conf_write(pc, tag,
218 : PCI_COMMAND_STATUS_REG,
219 0 : command | PCI_COMMAND_MEM_ENABLE);
220 :
221 0 : if (cardbus_read_exrom(ca->ca_memt, bar_memh,
222 : &rom_image))
223 : goto out;
224 :
225 0 : for (p = SIMPLEQ_FIRST(&rom_image); p;
226 0 : p = SIMPLEQ_NEXT(p, next)) {
227 0 : if (p->rom_image ==
228 : CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) {
229 0 : bus_space_read_region_1(p->romt,
230 : p->romh, CARDBUS_CIS_ADDR(cis_ptr),
231 : tuples, MIN(p->image_size, len));
232 : found++;
233 0 : break;
234 : }
235 : }
236 :
237 : out:
238 0 : while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) {
239 0 : SIMPLEQ_REMOVE_HEAD(&rom_image, next);
240 0 : free(p, M_DEVBUF, sizeof(*p));
241 : }
242 0 : exrom = pci_conf_read(pc, tag, reg);
243 0 : pci_conf_write(pc, tag, reg, exrom & ~1);
244 0 : splx(save);
245 0 : } else {
246 0 : command = pci_conf_read(pc, tag,
247 : PCI_COMMAND_STATUS_REG);
248 0 : pci_conf_write(pc, tag,
249 : PCI_COMMAND_STATUS_REG,
250 0 : command | PCI_COMMAND_MEM_ENABLE);
251 : /* XXX byte order? */
252 0 : bus_space_read_region_1(ca->ca_memt, bar_memh,
253 : cis_ptr, tuples, 256);
254 : found++;
255 : }
256 0 : command = pci_conf_read(pc, tag,
257 : PCI_COMMAND_STATUS_REG);
258 0 : pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG,
259 0 : command & ~PCI_COMMAND_MEM_ENABLE);
260 0 : pci_conf_write(pc, tag, reg, 0);
261 :
262 0 : Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh,
263 : bar_size);
264 0 : break;
265 :
266 : #ifdef DIAGNOSTIC
267 : default:
268 0 : panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname,
269 : cardbus_space);
270 : #endif
271 : }
272 0 : return (!found);
273 0 : }
274 :
275 : STATIC void
276 0 : parse_tuple(u_int8_t *tuple, int len, void *data)
277 : {
278 0 : struct cardbus_cis_info *cis = data;
279 : int bar_index;
280 : int i;
281 : char *p;
282 :
283 0 : switch (tuple[0]) {
284 : case PCMCIA_CISTPL_MANFID:
285 0 : if (tuple[1] < 4) {
286 : DPRINTF(("%s: wrong length manufacturer id (%d)\n",
287 : __func__, tuple[1]));
288 : break;
289 : }
290 0 : cis->manufacturer = tuple[2] | (tuple[3] << 8);
291 0 : cis->product = tuple[4] | (tuple[5] << 8);
292 0 : break;
293 : case PCMCIA_CISTPL_VERS_1:
294 0 : bcopy(tuple + 2, cis->cis1_info_buf, tuple[1]);
295 : i = 0;
296 0 : p = cis->cis1_info_buf + 2;
297 0 : while (i <
298 : sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) {
299 0 : if (p >= cis->cis1_info_buf + tuple[1] || *p == '\xff')
300 : break;
301 0 : cis->cis1_info[i++] = p;
302 0 : while (*p != '\0' && *p != '\xff')
303 0 : p++;
304 0 : if (*p == '\0')
305 0 : p++;
306 : }
307 : break;
308 : case PCMCIA_CISTPL_BAR:
309 0 : if (tuple[1] != 6) {
310 : DPRINTF(("%s: BAR with short length (%d)\n",
311 : __func__, tuple[1]));
312 : break;
313 : }
314 0 : bar_index = tuple[2] & 7;
315 0 : if (bar_index == 0) {
316 : DPRINTF(("%s: invalid ASI in BAR tuple\n",
317 : __func__));
318 : break;
319 : }
320 0 : bar_index--;
321 0 : cis->bar[bar_index].flags = tuple[2];
322 0 : cis->bar[bar_index].size = (tuple[4] << 0) |
323 0 : (tuple[5] << 8) | (tuple[6] << 16) | (tuple[7] << 24);
324 0 : break;
325 : case PCMCIA_CISTPL_FUNCID:
326 0 : cis->funcid = tuple[2];
327 0 : break;
328 :
329 : case PCMCIA_CISTPL_FUNCE:
330 0 : switch (cis->funcid) {
331 : case PCMCIA_FUNCTION_SERIAL:
332 0 : if (tuple[1] >= 2 &&
333 0 : tuple[2] == 0
334 : /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */) {
335 0 : cis->funce.serial.uart_type = tuple[3] & 0x1f;
336 0 : cis->funce.serial.uart_present = 1;
337 0 : }
338 : break;
339 : case PCMCIA_FUNCTION_NETWORK:
340 0 : if (tuple[1] >= 8 && tuple[2] ==
341 : PCMCIA_TPLFE_TYPE_LAN_NID) {
342 0 : if (tuple[3] >
343 : sizeof(cis->funce.network.netid)) {
344 : DPRINTF(("%s: unknown network id type"
345 : " (len = %d)\n", __func__,
346 : tuple[3]));
347 : } else {
348 0 : cis->funce.network.netid_present = 1;
349 0 : bcopy(tuple + 4,
350 0 : cis->funce.network.netid, tuple[3]);
351 : }
352 : }
353 : }
354 : break;
355 : }
356 0 : }
357 :
358 : /*
359 : * int cardbus_attach_card(struct cardbus_softc *sc)
360 : *
361 : * This function attaches the card on the slot: turns on power,
362 : * reads and analyses tuple, sets configuration index.
363 : *
364 : * This function returns the number of recognised device functions.
365 : * If no functions are recognised, return 0.
366 : */
367 : int
368 0 : cardbus_attach_card(struct cardbus_softc *sc)
369 : {
370 : cardbus_chipset_tag_t cc;
371 : cardbus_function_tag_t cf;
372 : int cdstatus;
373 : pcitag_t tag;
374 : pcireg_t id, class, cis_ptr;
375 : pcireg_t bhlc;
376 : u_int8_t *tuple;
377 : int function, nfunction;
378 : struct device *csc;
379 : int no_work_funcs = 0;
380 : cardbus_devfunc_t ct;
381 0 : pci_chipset_tag_t pc = sc->sc_pc;
382 : int i;
383 :
384 0 : cc = sc->sc_cc;
385 0 : cf = sc->sc_cf;
386 :
387 : DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit));
388 :
389 : /* inspect initial voltage */
390 0 : if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) {
391 : DPRINTF(("cardbusattach: no CardBus card on cb%d\n",
392 : sc->sc_dev.dv_unit));
393 0 : return (0);
394 : }
395 :
396 : /* XXX use fake function 8 to keep power on during whole configuration */
397 0 : enable_function(sc, cdstatus, 8);
398 :
399 : function = 0;
400 :
401 0 : tag = pci_make_tag(pc, sc->sc_bus, sc->sc_device, function);
402 :
403 : /* Wait until power comes up. Maximum 500 ms. */
404 0 : for (i = 0; i < 5; ++i) {
405 0 : id = pci_conf_read(pc, tag, PCI_ID_REG);
406 0 : if (id != 0xffffffff && id != 0)
407 : break;
408 0 : if (cold) { /* before kernel thread invoked */
409 0 : delay(100*1000);
410 0 : } else { /* thread context */
411 0 : if (tsleep((void *)sc, PCATCH, "cardbus",
412 0 : hz/10) != EWOULDBLOCK) {
413 : break;
414 : }
415 : }
416 : }
417 0 : if (i == 5)
418 0 : return (0);
419 :
420 0 : bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG);
421 : DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc));
422 0 : nfunction = PCI_HDRTYPE_MULTIFN(bhlc) ? 8 : 1;
423 :
424 0 : tuple = malloc(2048, M_TEMP, M_NOWAIT);
425 0 : if (tuple == NULL)
426 0 : panic("no room for cardbus tuples");
427 :
428 0 : for (function = 0; function < nfunction; function++) {
429 0 : struct cardbus_attach_args ca;
430 :
431 0 : tag = pci_make_tag(pc, sc->sc_bus, sc->sc_device,
432 : function);
433 :
434 0 : id = pci_conf_read(pc, tag, PCI_ID_REG);
435 0 : class = pci_conf_read(pc, tag, PCI_CLASS_REG);
436 0 : cis_ptr = pci_conf_read(pc, tag, CARDBUS_CIS_REG);
437 :
438 : /* Invalid vendor ID value? */
439 0 : if (PCI_VENDOR(id) == PCI_VENDOR_INVALID)
440 0 : continue;
441 :
442 : DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, "
443 : "CIS 0x%x\n", PCI_VENDOR(id), PCI_PRODUCT(id),
444 : cis_ptr));
445 :
446 0 : enable_function(sc, cdstatus, function);
447 :
448 : /* clean up every BAR */
449 0 : pci_conf_write(pc, tag, CARDBUS_BASE0_REG, 0);
450 0 : pci_conf_write(pc, tag, CARDBUS_BASE1_REG, 0);
451 0 : pci_conf_write(pc, tag, CARDBUS_BASE2_REG, 0);
452 0 : pci_conf_write(pc, tag, CARDBUS_BASE3_REG, 0);
453 0 : pci_conf_write(pc, tag, CARDBUS_BASE4_REG, 0);
454 0 : pci_conf_write(pc, tag, CARDBUS_BASE5_REG, 0);
455 0 : pci_conf_write(pc, tag, CARDBUS_ROM_REG, 0);
456 :
457 : /* set initial latency and cacheline size */
458 0 : bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG);
459 : DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname,
460 : function, bhlc));
461 0 : bhlc &= ~((PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT) |
462 : (PCI_CACHELINE_MASK << PCI_CACHELINE_SHIFT));
463 0 : bhlc |= ((sc->sc_cacheline & PCI_CACHELINE_MASK) <<
464 : PCI_CACHELINE_SHIFT);
465 0 : bhlc |= ((sc->sc_lattimer & PCI_LATTIMER_MASK) <<
466 : PCI_LATTIMER_SHIFT);
467 :
468 0 : pci_conf_write(pc, tag, PCI_BHLC_REG, bhlc);
469 0 : bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG);
470 : DPRINTF(("0x%08x\n", bhlc));
471 :
472 0 : if (PCI_LATTIMER(bhlc) < 0x10) {
473 0 : bhlc &= ~(PCI_LATTIMER_MASK <<
474 : PCI_LATTIMER_SHIFT);
475 0 : bhlc |= (0x10 << PCI_LATTIMER_SHIFT);
476 0 : pci_conf_write(pc, tag, PCI_BHLC_REG,
477 : bhlc);
478 0 : }
479 :
480 : /*
481 : * We need to allocate the ct here, since we might
482 : * need it when reading the CIS
483 : */
484 0 : if ((ct =
485 0 : (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc),
486 0 : M_DEVBUF, M_NOWAIT)) == NULL)
487 0 : panic("no room for cardbus_tag");
488 :
489 0 : ct->ct_cc = sc->sc_cc;
490 0 : ct->ct_cf = sc->sc_cf;
491 0 : ct->ct_bus = sc->sc_bus;
492 0 : ct->ct_dev = sc->sc_device;
493 0 : ct->ct_func = function;
494 0 : ct->ct_sc = sc;
495 0 : sc->sc_funcs[function] = ct;
496 :
497 0 : memset(&ca, 0, sizeof(ca));
498 :
499 0 : ca.ca_unit = sc->sc_dev.dv_unit;
500 0 : ca.ca_ct = ct;
501 :
502 0 : ca.ca_iot = sc->sc_iot;
503 0 : ca.ca_memt = sc->sc_memt;
504 0 : ca.ca_dmat = sc->sc_dmat;
505 0 : ca.ca_rbus_iot = sc->sc_rbus_iot;
506 0 : ca.ca_rbus_memt = sc->sc_rbus_memt;
507 0 : ca.ca_tag = tag;
508 0 : ca.ca_bus = sc->sc_bus;
509 0 : ca.ca_device = sc->sc_device;
510 0 : ca.ca_function = function;
511 0 : ca.ca_id = id;
512 0 : ca.ca_class = class;
513 0 : ca.ca_pc = sc->sc_pc;
514 :
515 0 : ca.ca_intrline = sc->sc_intrline;
516 :
517 0 : if (cis_ptr != 0) {
518 0 : if (cardbus_read_tuples(&ca, cis_ptr, tuple, 2048)) {
519 0 : printf("cardbus_attach_card: failed to "
520 : "read CIS\n");
521 0 : } else {
522 : #ifdef CARDBUS_DEBUG
523 : decode_tuples(tuple, 2048, print_tuple, NULL);
524 : #endif
525 0 : decode_tuples(tuple, 2048, parse_tuple,
526 0 : &ca.ca_cis);
527 : }
528 : }
529 :
530 0 : if ((csc = config_found_sm((void *)sc, &ca, cardbusprint,
531 0 : cardbussubmatch)) == NULL) {
532 : /* do not match */
533 0 : disable_function(sc, function);
534 0 : sc->sc_funcs[function] = NULL;
535 0 : free(ct, M_DEVBUF, sizeof(struct cardbus_devfunc));
536 0 : } else {
537 : /* found */
538 0 : ct->ct_device = csc;
539 0 : ++no_work_funcs;
540 : }
541 0 : }
542 : /*
543 : * XXX power down pseudo function 8 (this will power down the card
544 : * if no functions were attached).
545 : */
546 0 : disable_function(sc, 8);
547 0 : free(tuple, M_TEMP, 2048);
548 :
549 0 : return (no_work_funcs);
550 0 : }
551 :
552 : STATIC int
553 0 : cardbussubmatch(struct device *parent, void *match, void *aux)
554 : {
555 0 : struct cfdata *cf = match;
556 0 : struct cardbus_attach_args *ca = aux;
557 :
558 0 : if (cf->cardbuscf_dev != CARDBUS_UNK_DEV &&
559 0 : cf->cardbuscf_dev != ca->ca_unit) {
560 0 : return (0);
561 : }
562 0 : if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION &&
563 0 : cf->cardbuscf_function != ca->ca_function) {
564 0 : return (0);
565 : }
566 :
567 0 : return ((*cf->cf_attach->ca_match)(parent, cf, aux));
568 0 : }
569 :
570 : STATIC int
571 0 : cardbusprint(void *aux, const char *pnp)
572 : {
573 0 : struct cardbus_attach_args *ca = aux;
574 0 : char devinfo[256];
575 :
576 0 : if (pnp) {
577 0 : pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo,
578 : sizeof(devinfo));
579 0 : printf("%s at %s", devinfo, pnp);
580 0 : }
581 0 : printf(" dev %d function %d", ca->ca_device, ca->ca_function);
582 0 : if (!pnp) {
583 0 : pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo,
584 : sizeof(devinfo));
585 0 : printf(" %s", devinfo);
586 0 : }
587 :
588 0 : return (UNCONF);
589 0 : }
590 :
591 : /*
592 : * void cardbus_detach_card(struct cardbus_softc *sc)
593 : *
594 : * This function detaches the card on the slot: detach device data
595 : * structure and turns off the power.
596 : *
597 : * This function must not be called under interrupt context.
598 : */
599 : void
600 0 : cardbus_detach_card(struct cardbus_softc *sc)
601 : {
602 : struct cardbus_devfunc *ct;
603 : int f;
604 :
605 0 : for (f = 0; f < 8; f++) {
606 0 : ct = sc->sc_funcs[f];
607 0 : if (ct == NULL)
608 : continue;
609 :
610 : DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname,
611 : ct->ct_device->dv_xname));
612 :
613 0 : if (config_detach(ct->ct_device, 0) != 0) {
614 0 : printf("%s: cannot detach dev %s, function %d\n",
615 0 : sc->sc_dev.dv_xname, ct->ct_device->dv_xname,
616 0 : ct->ct_func);
617 0 : } else {
618 0 : sc->sc_poweron_func &= ~(1 << ct->ct_func);
619 0 : sc->sc_funcs[ct->ct_func] = NULL;
620 0 : free(ct, M_DEVBUF, sizeof(struct cardbus_devfunc));
621 : }
622 : }
623 :
624 0 : sc->sc_poweron_func = 0;
625 0 : sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V);
626 0 : }
627 :
628 : /*
629 : * void *cardbus_intr_establish(cc, cf, irq, level, func, arg, name)
630 : * Interrupt handler of pccard.
631 : * args:
632 : * cardbus_chipset_tag_t *cc
633 : * int irq:
634 : */
635 : void *
636 0 : cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf,
637 : cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg,
638 : const char *name)
639 : {
640 : DPRINTF(("- cardbus_intr_establish: irq %d\n", irq));
641 :
642 0 : return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg, name);
643 : }
644 :
645 : /*
646 : * void cardbus_intr_disestablish(cc, cf, handler)
647 : * Interrupt handler of pccard.
648 : * args:
649 : * cardbus_chipset_tag_t *cc
650 : */
651 : void
652 0 : cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf,
653 : void *handler)
654 : {
655 : DPRINTF(("- pccard_intr_disestablish\n"));
656 :
657 0 : (*cf->cardbus_intr_disestablish)(cc, handler);
658 0 : }
659 :
660 : /* XXX this should be merged with cardbus_function_{enable,disable},
661 : but we don't have a ct when these functions are called */
662 :
663 : STATIC void
664 0 : enable_function(struct cardbus_softc *sc, int cdstatus, int function)
665 : {
666 0 : if (sc->sc_poweron_func == 0) {
667 : /* switch to 3V and/or wait for power to stabilize */
668 0 : if (cdstatus & CARDBUS_3V_CARD) {
669 0 : sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V);
670 : } else {
671 : /* No cards other than 3.3V cards. */
672 : return;
673 : }
674 0 : (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET);
675 0 : }
676 0 : sc->sc_poweron_func |= (1 << function);
677 0 : }
678 :
679 : STATIC void
680 0 : disable_function(struct cardbus_softc *sc, int function)
681 : {
682 0 : sc->sc_poweron_func &= ~(1 << function);
683 0 : if (sc->sc_poweron_func == 0) {
684 : /* power-off because no functions are enabled */
685 0 : sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V);
686 0 : }
687 0 : }
688 :
689 : /*
690 : * int cardbus_function_enable(struct cardbus_softc *sc, int func)
691 : *
692 : * This function enables a function on a card. When no power is
693 : * applied on the card, power will be applied on it.
694 : */
695 : int
696 0 : cardbus_function_enable(struct cardbus_softc *sc, int func)
697 : {
698 0 : pci_chipset_tag_t pc = sc->sc_pc;
699 : pcireg_t command;
700 : pcitag_t tag;
701 :
702 : DPRINTF(("entering cardbus_function_enable... "));
703 :
704 : /* entering critical area */
705 :
706 : /* XXX: sc_vold should be used */
707 0 : enable_function(sc, CARDBUS_3V_CARD, func);
708 :
709 : /* exiting critical area */
710 :
711 0 : tag = pci_make_tag(pc, sc->sc_bus, sc->sc_device, func);
712 :
713 0 : command = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
714 0 : command |= (PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_IO_ENABLE |
715 : PCI_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */
716 :
717 0 : pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, command);
718 :
719 : DPRINTF(("%x\n", sc->sc_poweron_func));
720 :
721 0 : return (0);
722 : }
723 :
724 : /*
725 : * int cardbus_function_disable(struct cardbus_softc *, int func)
726 : *
727 : * This function disable a function on a card. When no functions are
728 : * enabled, it turns off the power.
729 : */
730 : int
731 0 : cardbus_function_disable(struct cardbus_softc *sc, int func)
732 : {
733 : DPRINTF(("entering cardbus_function_disable... "));
734 :
735 0 : disable_function(sc, func);
736 :
737 0 : return (0);
738 : }
739 :
740 : int
741 0 : cardbus_matchbyid(struct cardbus_attach_args *ca,
742 : const struct pci_matchid *ids, int nent)
743 : {
744 : const struct pci_matchid *pm;
745 : int i;
746 :
747 0 : for (i = 0, pm = ids; i < nent; i++, pm++)
748 0 : if (PCI_VENDOR(ca->ca_id) == pm->pm_vid &&
749 0 : PCI_PRODUCT(ca->ca_id) == pm->pm_pid)
750 0 : return (1);
751 0 : return (0);
752 0 : }
753 :
754 : /*
755 : * below this line, there are some functions for decoding tuples.
756 : * They should go out from this file.
757 : */
758 :
759 : STATIC u_int8_t *
760 : decode_tuple(u_int8_t *, u_int8_t *, tuple_decode_func, void *);
761 :
762 : STATIC int
763 0 : decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data)
764 : {
765 : u_int8_t *tp = tuple;
766 :
767 0 : if (PCMCIA_CISTPL_LINKTARGET != *tuple) {
768 : DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple));
769 0 : return (0);
770 : }
771 :
772 0 : while ((tp = decode_tuple(tp, tuple + buflen, func, data)) != NULL)
773 : ;
774 :
775 0 : return (1);
776 0 : }
777 :
778 : STATIC u_int8_t *
779 0 : decode_tuple(u_int8_t *tuple, u_int8_t *end, tuple_decode_func func,
780 : void *data)
781 : {
782 : u_int8_t type;
783 : u_int8_t len;
784 :
785 0 : type = tuple[0];
786 0 : switch (type) {
787 : case PCMCIA_CISTPL_NULL:
788 : case PCMCIA_CISTPL_END:
789 : len = 1;
790 0 : break;
791 : default:
792 0 : if (tuple + 2 > end)
793 0 : return (NULL);
794 0 : len = tuple[1] + 2;
795 0 : break;
796 : }
797 :
798 0 : if (tuple + len > end)
799 0 : return (NULL);
800 :
801 0 : (*func)(tuple, len, data);
802 :
803 0 : if (PCMCIA_CISTPL_END == type || tuple + len == end)
804 0 : return (NULL);
805 :
806 0 : return (tuple + len);
807 0 : }
808 :
809 : #ifdef CARDBUS_DEBUG
810 : static char *tuple_name(int type);
811 :
812 : static char *
813 : tuple_name(int type)
814 : {
815 : static char *tuple_name_s [] = {
816 : "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */
817 : "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */
818 : "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */
819 : "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */
820 : "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */
821 : "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", /* 14-17 */
822 : "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", /* 18-1B */
823 : "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", /* 1C-1E */
824 : "DEVICE_GEO_A", "MANFID", "FUNCID", "FUNCE", "SWIL", /* 1F-23 */
825 : "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */
826 : "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */
827 : "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */
828 : "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */
829 : "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */
830 : "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */
831 : "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */
832 : "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", /* 40-43 */
833 : "DATE", "BATTERY", "ORG", "FORMAT_A" /* 44-47 */
834 : };
835 :
836 : if (type > 0 && type < nitems(tuple_name_s))
837 : return (tuple_name_s[type]);
838 : else if (0xff == type)
839 : return ("END");
840 : else
841 : return ("Reserved");
842 : }
843 :
844 : static void
845 : print_tuple(u_int8_t *tuple, int len, void *data)
846 : {
847 : int i;
848 :
849 : printf("tuple: %s len %d\n", tuple_name(tuple[0]), len);
850 :
851 : for (i = 0; i < len; ++i) {
852 : if (i % 16 == 0)
853 : printf(" 0x%02x:", i);
854 : printf(" %x",tuple[i]);
855 : if (i % 16 == 15)
856 : printf("\n");
857 : }
858 : if (i % 16 != 0)
859 : printf("\n");
860 : }
861 : #endif
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