Annotation of sys/dev/cardbus/cardbus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: cardbus.c,v 1.34 2006/10/12 16:35:51 grange 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: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by HAYAKAWA Koichi.
19: * 4. The name of the author may not be used to endorse or promote products
20: * derived from this software without specific prior written permission.
21: *
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
27: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33: * POSSIBILITY OF SUCH DAMAGE.
34: */
35:
36: #include <sys/param.h>
37: #include <sys/systm.h>
38: #include <sys/device.h>
39: #include <sys/malloc.h>
40: #include <sys/kernel.h>
41: #include <sys/syslog.h>
42: #include <sys/proc.h>
43:
44: #include <machine/bus.h>
45:
46: #include <dev/cardbus/cardbusvar.h>
47: #include <dev/pci/pcidevs.h>
48:
49: #include <dev/cardbus/cardbus_exrom.h>
50:
51: #include <dev/pci/pcivar.h> /* XXX */
52: #include <dev/pci/pcireg.h> /* XXX */
53:
54: #include <dev/pcmcia/pcmciareg.h>
55:
56: #if defined CARDBUS_DEBUG
57: #define STATIC
58: #define DPRINTF(a) printf a
59: #else
60: #define STATIC static
61: #define DPRINTF(a)
62: #endif
63:
64: STATIC void cardbusattach(struct device *, struct device *, void *);
65: /* STATIC int cardbusprint(void *, const char *); */
66:
67: STATIC int cardbusmatch(struct device *, void *, void *);
68: static int cardbussubmatch(struct device *, void *, void *);
69: static int cardbusprint(void *, const char *);
70:
71: typedef void (*tuple_decode_func)(u_int8_t *, int, void *);
72:
73: static int decode_tuples(u_int8_t *, int, tuple_decode_func, void *);
74: #ifdef CARDBUS_DEBUG
75: static void print_tuple(u_int8_t *, int, void *);
76: #endif
77:
78: static int cardbus_read_tuples(struct cardbus_attach_args *,
79: cardbusreg_t, u_int8_t *, size_t);
80:
81: static void enable_function(struct cardbus_softc *, int, int);
82: static void disable_function(struct cardbus_softc *, int);
83:
84:
85: struct cfattach cardbus_ca = {
86: sizeof(struct cardbus_softc), cardbusmatch, cardbusattach
87: };
88:
89: struct cfdriver cardbus_cd = {
90: NULL, "cardbus", DV_DULL
91: };
92:
93: STATIC int
94: cardbusmatch(struct device *parent, void *match, void *aux)
95: {
96: struct cfdata *cf = match;
97: struct cbslot_attach_args *cba = aux;
98:
99: if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) {
100: DPRINTF(("cardbusmatch: busname differs %s <=> %s\n",
101: cba->cba_busname, cf->cf_driver->cd_name));
102: return (0);
103: }
104:
105: return (1);
106: }
107:
108: STATIC void
109: cardbusattach(struct device *parent, struct device *self, void *aux)
110: {
111: struct cardbus_softc *sc = (void *)self;
112: struct cbslot_attach_args *cba = aux;
113: int cdstatus;
114:
115: sc->sc_bus = cba->cba_bus;
116: sc->sc_device = 0;
117: sc->sc_intrline = cba->cba_intrline;
118: sc->sc_cacheline = cba->cba_cacheline;
119: sc->sc_lattimer = cba->cba_lattimer;
120:
121: printf(": bus %d device %d", sc->sc_bus, sc->sc_device);
122: printf(" cacheline 0x%x, lattimer 0x%x\n",
123: sc->sc_cacheline,sc->sc_lattimer);
124:
125: sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */
126: sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */
127: sc->sc_dmat = cba->cba_dmat; /* DMA tag */
128: sc->sc_cc = cba->cba_cc;
129: sc->sc_cf = cba->cba_cf;
130: sc->sc_rbus_iot = cba->cba_rbus_iot;
131: sc->sc_rbus_memt = cba->cba_rbus_memt;
132:
133: sc->sc_funcs = NULL;
134:
135: cdstatus = 0;
136: }
137:
138: static int
139: cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr,
140: u_int8_t *tuples, size_t len)
141: {
142: struct cardbus_softc *sc = ca->ca_ct->ct_sc;
143: cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc;
144: cardbus_function_tag_t cf = ca->ca_ct->ct_cf;
145: cardbustag_t tag = ca->ca_tag;
146: cardbusreg_t command;
147: int found = 0;
148:
149: int i, j;
150: int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK;
151: bus_space_tag_t bar_tag;
152: bus_space_handle_t bar_memh;
153: bus_size_t bar_size;
154: bus_addr_t bar_addr;
155:
156: int reg;
157:
158: memset(tuples, 0, len);
159:
160: cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK;
161:
162: switch (cardbus_space) {
163: case CARDBUS_CIS_ASI_TUPLE:
164: DPRINTF(("%s: reading CIS data from configuration space\n",
165: sc->sc_dev.dv_xname));
166: for (i = cis_ptr, j = 0; i < 0xff; i += 4) {
167: u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i);
168: tuples[j] = 0xff & e;
169: e >>= 8;
170: tuples[j + 1] = 0xff & e;
171: e >>= 8;
172: tuples[j + 2] = 0xff & e;
173: e >>= 8;
174: tuples[j + 3] = 0xff & e;
175: j += 4;
176: }
177: found++;
178: break;
179:
180: case CARDBUS_CIS_ASI_BAR0:
181: case CARDBUS_CIS_ASI_BAR1:
182: case CARDBUS_CIS_ASI_BAR2:
183: case CARDBUS_CIS_ASI_BAR3:
184: case CARDBUS_CIS_ASI_BAR4:
185: case CARDBUS_CIS_ASI_BAR5:
186: case CARDBUS_CIS_ASI_ROM:
187: if (cardbus_space == CARDBUS_CIS_ASI_ROM) {
188: reg = CARDBUS_ROM_REG;
189: DPRINTF(("%s: reading CIS data from ROM\n",
190: sc->sc_dev.dv_xname));
191: } else {
192: reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4;
193: DPRINTF(("%s: reading CIS data from BAR%d\n",
194: sc->sc_dev.dv_xname, cardbus_space - 1));
195: }
196:
197: /* XXX zero register so mapreg_map doesn't get confused by old
198: contents */
199: cardbus_conf_write(cc, cf, tag, reg, 0);
200: if (Cardbus_mapreg_map(ca->ca_ct, reg,
201: CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
202: &bar_tag, &bar_memh, &bar_addr, &bar_size)) {
203: printf("%s: failed to map memory\n",
204: sc->sc_dev.dv_xname);
205: return (1);
206: }
207:
208: if (cardbus_space == CARDBUS_CIS_ASI_ROM) {
209: cardbusreg_t exrom;
210: int save;
211: struct cardbus_rom_image_head rom_image;
212: struct cardbus_rom_image *p;
213:
214: save = splhigh();
215: /* enable rom address decoder */
216: exrom = cardbus_conf_read(cc, cf, tag, reg);
217: cardbus_conf_write(cc, cf, tag, reg, exrom | 1);
218:
219: command = cardbus_conf_read(cc, cf, tag,
220: CARDBUS_COMMAND_STATUS_REG);
221: cardbus_conf_write(cc, cf, tag,
222: CARDBUS_COMMAND_STATUS_REG,
223: command | CARDBUS_COMMAND_MEM_ENABLE);
224:
225: if (cardbus_read_exrom(ca->ca_memt, bar_memh,
226: &rom_image))
227: goto out;
228:
229: for (p = SIMPLEQ_FIRST(&rom_image); p;
230: p = SIMPLEQ_NEXT(p, next)) {
231: if (p->rom_image ==
232: CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) {
233: bus_space_read_region_1(p->romt,
234: p->romh, CARDBUS_CIS_ADDR(cis_ptr),
235: tuples, MIN(p->image_size, len));
236: found++;
237: break;
238: }
239: }
240:
241: out:
242: while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) {
243: SIMPLEQ_REMOVE_HEAD(&rom_image, next);
244: free(p, M_DEVBUF);
245: }
246: exrom = cardbus_conf_read(cc, cf, tag, reg);
247: cardbus_conf_write(cc, cf, tag, reg, exrom & ~1);
248: splx(save);
249: } else {
250: command = cardbus_conf_read(cc, cf, tag,
251: CARDBUS_COMMAND_STATUS_REG);
252: cardbus_conf_write(cc, cf, tag,
253: CARDBUS_COMMAND_STATUS_REG,
254: command | CARDBUS_COMMAND_MEM_ENABLE);
255: /* XXX byte order? */
256: bus_space_read_region_1(ca->ca_memt, bar_memh,
257: cis_ptr, tuples, 256);
258: found++;
259: }
260: command = cardbus_conf_read(cc, cf, tag,
261: CARDBUS_COMMAND_STATUS_REG);
262: cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG,
263: command & ~CARDBUS_COMMAND_MEM_ENABLE);
264: cardbus_conf_write(cc, cf, tag, reg, 0);
265:
266: Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh,
267: bar_size);
268: break;
269:
270: #ifdef DIAGNOSTIC
271: default:
272: panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname,
273: cardbus_space);
274: #endif
275: }
276: return (!found);
277: }
278:
279: static void
280: parse_tuple(u_int8_t *tuple, int len, void *data)
281: {
282: struct cardbus_cis_info *cis = data;
283: int bar_index;
284: int i;
285: char *p;
286:
287: switch (tuple[0]) {
288: case PCMCIA_CISTPL_MANFID:
289: if (tuple[1] < 4) {
290: DPRINTF(("%s: wrong length manufacturer id (%d)\n",
291: __func__, tuple[1]));
292: break;
293: }
294: cis->manufacturer = tuple[2] | (tuple[3] << 8);
295: cis->product = tuple[4] | (tuple[5] << 8);
296: break;
297: case PCMCIA_CISTPL_VERS_1:
298: bcopy(tuple + 2, cis->cis1_info_buf, tuple[1]);
299: i = 0;
300: p = cis->cis1_info_buf + 2;
301: while (i <
302: sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) {
303: if (p >= cis->cis1_info_buf + tuple[1] || *p == '\xff')
304: break;
305: cis->cis1_info[i++] = p;
306: while (*p != '\0' && *p != '\xff')
307: p++;
308: if (*p == '\0')
309: p++;
310: }
311: break;
312: case PCMCIA_CISTPL_BAR:
313: if (tuple[1] != 6) {
314: DPRINTF(("%s: BAR with short length (%d)\n",
315: __func__, tuple[1]));
316: break;
317: }
318: bar_index = tuple[2] & 7;
319: if (bar_index == 0) {
320: DPRINTF(("%s: invalid ASI in BAR tuple\n",
321: __func__));
322: break;
323: }
324: bar_index--;
325: cis->bar[bar_index].flags = tuple[2];
326: cis->bar[bar_index].size = (tuple[4] << 0) |
327: (tuple[5] << 8) | (tuple[6] << 16) | (tuple[7] << 24);
328: break;
329: case PCMCIA_CISTPL_FUNCID:
330: cis->funcid = tuple[2];
331: break;
332:
333: case PCMCIA_CISTPL_FUNCE:
334: switch (cis->funcid) {
335: case PCMCIA_FUNCTION_SERIAL:
336: if (tuple[1] >= 2 &&
337: tuple[2] == 0
338: /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */) {
339: cis->funce.serial.uart_type = tuple[3] & 0x1f;
340: cis->funce.serial.uart_present = 1;
341: }
342: break;
343: case PCMCIA_FUNCTION_NETWORK:
344: if (tuple[1] >= 8 && tuple[2] ==
345: PCMCIA_TPLFE_TYPE_LAN_NID) {
346: if (tuple[3] >
347: sizeof(cis->funce.network.netid)) {
348: DPRINTF(("%s: unknown network id type"
349: " (len = %d)\n", __func__,
350: tuple[3]));
351: } else {
352: cis->funce.network.netid_present = 1;
353: bcopy(tuple + 4,
354: cis->funce.network.netid, tuple[3]);
355: }
356: }
357: }
358: break;
359: }
360: }
361:
362: /*
363: * int cardbus_attach_card(struct cardbus_softc *sc)
364: *
365: * This function attaches the card on the slot: turns on power,
366: * reads and analyses tuple, sets configuration index.
367: *
368: * This function returns the number of recognised device functions.
369: * If no functions are recognised, return 0.
370: */
371: int
372: cardbus_attach_card(struct cardbus_softc *sc)
373: {
374: cardbus_chipset_tag_t cc;
375: cardbus_function_tag_t cf;
376: int cdstatus;
377: cardbustag_t tag;
378: cardbusreg_t id, class, cis_ptr;
379: cardbusreg_t bhlc;
380: u_int8_t *tuple;
381: int function, nfunction;
382: struct cardbus_devfunc **previous_next = &(sc->sc_funcs);
383: struct device *csc;
384: int no_work_funcs = 0;
385: cardbus_devfunc_t ct;
386: int i;
387:
388: cc = sc->sc_cc;
389: cf = sc->sc_cf;
390:
391: DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit));
392:
393: /* inspect initial voltage */
394: if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) {
395: DPRINTF(("cardbusattach: no CardBus card on cb%d\n",
396: sc->sc_dev.dv_unit));
397: return (0);
398: }
399:
400: /* XXX use fake function 8 to keep power on during whole configuration */
401: enable_function(sc, cdstatus, 8);
402:
403: function = 0;
404:
405: tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function);
406:
407: /* Wait until power comes up. Maximum 500 ms. */
408: for (i = 0; i < 5; ++i) {
409: id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG);
410: if (id != 0xffffffff && id != 0)
411: break;
412: if (cold) { /* before kernel thread invoked */
413: delay(100*1000);
414: } else { /* thread context */
415: if (tsleep((void *)sc, PCATCH, "cardbus",
416: hz/10) != EWOULDBLOCK) {
417: break;
418: }
419: }
420: }
421: if (i == 5)
422: return (0);
423:
424: bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG);
425: DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc));
426: nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1;
427:
428: tuple = malloc(2048, M_TEMP, M_NOWAIT);
429: if (tuple == NULL)
430: panic("no room for cardbus tuples");
431:
432: for (function = 0; function < nfunction; function++) {
433: struct cardbus_attach_args ca;
434:
435: tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device,
436: function);
437:
438: id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG);
439: class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG);
440: cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG);
441:
442: /* Invalid vendor ID value? */
443: if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID)
444: continue;
445:
446: DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, "
447: "CIS 0x%x\n", CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id),
448: cis_ptr));
449:
450: enable_function(sc, cdstatus, function);
451:
452: /* clean up every BAR */
453: cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0);
454: cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0);
455: cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0);
456: cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0);
457: cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0);
458: cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0);
459: cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0);
460:
461: /* set initial latency and cacheline size */
462: bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG);
463: DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname,
464: function, bhlc));
465: bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) |
466: (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT));
467: bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) <<
468: CARDBUS_CACHELINE_SHIFT);
469: bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) <<
470: CARDBUS_LATTIMER_SHIFT);
471:
472: cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc);
473: bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG);
474: DPRINTF(("0x%08x\n", bhlc));
475:
476: if (CARDBUS_LATTIMER(bhlc) < 0x10) {
477: bhlc &= ~(CARDBUS_LATTIMER_MASK <<
478: CARDBUS_LATTIMER_SHIFT);
479: bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT);
480: cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG,
481: bhlc);
482: }
483:
484: /*
485: * We need to allocate the ct here, since we might
486: * need it when reading the CIS
487: */
488: if ((ct =
489: (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc),
490: M_DEVBUF, M_NOWAIT)) == NULL)
491: panic("no room for cardbus_tag");
492:
493: ct->ct_cc = sc->sc_cc;
494: ct->ct_cf = sc->sc_cf;
495: ct->ct_bus = sc->sc_bus;
496: ct->ct_dev = sc->sc_device;
497: ct->ct_func = function;
498: ct->ct_sc = sc;
499: ct->ct_next = NULL;
500: *previous_next = ct;
501:
502: memset(&ca, 0, sizeof(ca));
503:
504: ca.ca_unit = sc->sc_dev.dv_unit;
505: ca.ca_ct = ct;
506:
507: ca.ca_iot = sc->sc_iot;
508: ca.ca_memt = sc->sc_memt;
509: ca.ca_dmat = sc->sc_dmat;
510: ca.ca_rbus_iot = sc->sc_rbus_iot;
511: ca.ca_rbus_memt = sc->sc_rbus_memt;
512: ca.ca_tag = tag;
513: ca.ca_bus = sc->sc_bus;
514: ca.ca_device = sc->sc_device;
515: ca.ca_function = function;
516: ca.ca_id = id;
517: ca.ca_class = class;
518:
519: ca.ca_intrline = sc->sc_intrline;
520:
521: if (cis_ptr != 0) {
522: if (cardbus_read_tuples(&ca, cis_ptr, tuple, 2048)) {
523: printf("cardbus_attach_card: failed to "
524: "read CIS\n");
525: } else {
526: #ifdef CARDBUS_DEBUG
527: decode_tuples(tuple, 2048, print_tuple, NULL);
528: #endif
529: decode_tuples(tuple, 2048, parse_tuple,
530: &ca.ca_cis);
531: }
532: }
533:
534: if ((csc = config_found_sm((void *)sc, &ca, cardbusprint,
535: cardbussubmatch)) == NULL) {
536: /* do not match */
537: disable_function(sc, function);
538: free(ct, M_DEVBUF);
539: *previous_next = NULL;
540: } else {
541: /* found */
542: previous_next = &(ct->ct_next);
543: ct->ct_device = csc;
544: ++no_work_funcs;
545: }
546: }
547: /*
548: * XXX power down pseudo function 8 (this will power down the card
549: * if no functions were attached).
550: */
551: disable_function(sc, 8);
552: free(tuple, M_TEMP);
553:
554: return (no_work_funcs);
555: }
556:
557: static int
558: cardbussubmatch(struct device *parent, void *match, void *aux)
559: {
560: struct cfdata *cf = match;
561: struct cardbus_attach_args *ca = aux;
562:
563: if (cf->cardbuscf_dev != CARDBUS_UNK_DEV &&
564: cf->cardbuscf_dev != ca->ca_unit) {
565: return (0);
566: }
567: if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION &&
568: cf->cardbuscf_function != ca->ca_function) {
569: return (0);
570: }
571:
572: return ((*cf->cf_attach->ca_match)(parent, cf, aux));
573: }
574:
575: static int
576: cardbusprint(void *aux, const char *pnp)
577: {
578: struct cardbus_attach_args *ca = aux;
579: char devinfo[256];
580: int i;
581:
582: if (pnp) {
583: pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo,
584: sizeof(devinfo));
585: for (i = 0; i < 4; i++) {
586: if (ca->ca_cis.cis1_info[i] == NULL)
587: break;
588: if (i)
589: printf(", ");
590: printf("%s", ca->ca_cis.cis1_info[i]);
591: }
592: if (i)
593: printf(" ");
594: if (ca->ca_cis.manufacturer)
595: printf("(manufacturer 0x%x, product 0x%x) ",
596: ca->ca_cis.manufacturer, ca->ca_cis.product);
597: printf("%s at %s", devinfo, pnp);
598: }
599: printf(" dev %d function %d", ca->ca_device, ca->ca_function);
600:
601: if (!pnp) {
602: pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo,
603: sizeof(devinfo));
604: for (i = 0; i < 3 && ca->ca_cis.cis1_info[i]; i++)
605: printf("%s%s", i ? ", " : " \"",
606: ca->ca_cis.cis1_info[i]);
607: if (ca->ca_cis.cis1_info[0])
608: printf("\"");
609: }
610:
611: return (UNCONF);
612: }
613:
614: /*
615: * void cardbus_detach_card(struct cardbus_softc *sc)
616: *
617: * This function detaches the card on the slot: detach device data
618: * structure and turns off the power.
619: *
620: * This function must not be called under interrupt context.
621: */
622: void
623: cardbus_detach_card(struct cardbus_softc *sc)
624: {
625: struct cardbus_devfunc *ct, *ct_next, **prev_next;
626:
627: prev_next = &(sc->sc_funcs->ct_next);
628:
629: for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) {
630: struct device *fndev = ct->ct_device;
631: ct_next = ct->ct_next;
632:
633: DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname,
634: fndev->dv_xname));
635: /* call device detach function */
636:
637: if (config_detach(fndev, 0) != 0) {
638: printf("%s: cannot detach dev %s, function %d\n",
639: sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func);
640: prev_next = &(ct->ct_next);
641: } else {
642: sc->sc_poweron_func &= ~(1 << ct->ct_func);
643: *prev_next = ct->ct_next;
644: free(ct, M_DEVBUF);
645: }
646: }
647:
648: sc->sc_poweron_func = 0;
649: sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V);
650: }
651:
652: /*
653: * void *cardbus_intr_establish(cc, cf, irq, level, func, arg, name)
654: * Interrupt handler of pccard.
655: * args:
656: * cardbus_chipset_tag_t *cc
657: * int irq:
658: */
659: void *
660: cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf,
661: cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg,
662: const char *name)
663: {
664: DPRINTF(("- cardbus_intr_establish: irq %d\n", irq));
665:
666: return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg, name);
667: }
668:
669: /*
670: * void cardbus_intr_disestablish(cc, cf, handler)
671: * Interrupt handler of pccard.
672: * args:
673: * cardbus_chipset_tag_t *cc
674: */
675: void
676: cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf,
677: void *handler)
678: {
679: DPRINTF(("- pccard_intr_disestablish\n"));
680:
681: (*cf->cardbus_intr_disestablish)(cc, handler);
682: }
683:
684: /* XXX this should be merged with cardbus_function_{enable,disable},
685: but we don't have a ct when these functions are called */
686:
687: static void
688: enable_function(struct cardbus_softc *sc, int cdstatus, int function)
689: {
690: if (sc->sc_poweron_func == 0) {
691: /* switch to 3V and/or wait for power to stabilize */
692: if (cdstatus & CARDBUS_3V_CARD) {
693: sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V);
694: } else {
695: /* No cards other than 3.3V cards. */
696: return;
697: }
698: (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET);
699: }
700: sc->sc_poweron_func |= (1 << function);
701: }
702:
703: static void
704: disable_function(struct cardbus_softc *sc, int function)
705: {
706: sc->sc_poweron_func &= ~(1 << function);
707: if (sc->sc_poweron_func == 0) {
708: /* power-off because no functions are enabled */
709: sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V);
710: }
711: }
712:
713: /*
714: * int cardbus_function_enable(struct cardbus_softc *sc, int func)
715: *
716: * This function enables a function on a card. When no power is
717: * applied on the card, power will be applied on it.
718: */
719: int
720: cardbus_function_enable(struct cardbus_softc *sc, int func)
721: {
722: cardbus_chipset_tag_t cc = sc->sc_cc;
723: cardbus_function_tag_t cf = sc->sc_cf;
724: cardbusreg_t command;
725: cardbustag_t tag;
726:
727: DPRINTF(("entering cardbus_function_enable... "));
728:
729: /* entering critical area */
730:
731: /* XXX: sc_vold should be used */
732: enable_function(sc, CARDBUS_3V_CARD, func);
733:
734: /* exiting critical area */
735:
736: tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func);
737:
738: command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG);
739: command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE |
740: CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */
741:
742: cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command);
743:
744: cardbus_free_tag(cc, cf, tag);
745:
746: DPRINTF(("%x\n", sc->sc_poweron_func));
747:
748: return (0);
749: }
750:
751: /*
752: * int cardbus_function_disable(struct cardbus_softc *, int func)
753: *
754: * This function disable a function on a card. When no functions are
755: * enabled, it turns off the power.
756: */
757: int
758: cardbus_function_disable(struct cardbus_softc *sc, int func)
759: {
760: DPRINTF(("entering cardbus_function_disable... "));
761:
762: disable_function(sc, func);
763:
764: return (0);
765: }
766:
767: /*
768: * int cardbus_get_capability(cardbus_chipset_tag_t cc,
769: * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset,
770: * cardbusreg_t *value)
771: *
772: * Find the specified PCI capability.
773: */
774: int
775: cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf,
776: cardbustag_t tag, int capid, int *offset, cardbusreg_t *value)
777: {
778: cardbusreg_t reg;
779: unsigned int ofs;
780:
781: reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG);
782: if (!(reg & PCI_STATUS_CAPLIST_SUPPORT))
783: return (0);
784:
785: ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag,
786: PCI_CAPLISTPTR_REG));
787: while (ofs != 0) {
788: #ifdef DIAGNOSTIC
789: if ((ofs & 3) || (ofs < 0x40))
790: panic("cardbus_get_capability 0x%x", ofs);
791: #endif
792: reg = cardbus_conf_read(cc, cf, tag, ofs);
793: if (PCI_CAPLIST_CAP(reg) == capid) {
794: if (offset)
795: *offset = ofs;
796: if (value)
797: *value = reg;
798: return (1);
799: }
800: ofs = PCI_CAPLIST_NEXT(reg);
801: }
802:
803: return (0);
804: }
805:
806: int
807: cardbus_matchbyid(struct cardbus_attach_args *ca,
808: const struct cardbus_matchid *ids, int nent)
809: {
810: const struct cardbus_matchid *cm;
811: int i;
812:
813: for (i = 0, cm = ids; i < nent; i++, cm++)
814: if (CARDBUS_VENDOR(ca->ca_id) == cm->cm_vid &&
815: CARDBUS_PRODUCT(ca->ca_id) == cm->cm_pid)
816: return (1);
817: return (0);
818: }
819:
820: /*
821: * below this line, there are some functions for decoding tuples.
822: * They should go out from this file.
823: */
824:
825: static u_int8_t *
826: decode_tuple(u_int8_t *, u_int8_t *, tuple_decode_func, void *);
827:
828: static int
829: decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data)
830: {
831: u_int8_t *tp = tuple;
832:
833: if (PCMCIA_CISTPL_LINKTARGET != *tuple) {
834: DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple));
835: return (0);
836: }
837:
838: while ((tp = decode_tuple(tp, tuple + buflen, func, data)) != NULL)
839: ;
840:
841: return (1);
842: }
843:
844: static u_int8_t *
845: decode_tuple(u_int8_t *tuple, u_int8_t *end, tuple_decode_func func,
846: void *data)
847: {
848: u_int8_t type;
849: u_int8_t len;
850:
851: type = tuple[0];
852: switch (type) {
853: case PCMCIA_CISTPL_NULL:
854: case PCMCIA_CISTPL_END:
855: len = 1;
856: break;
857: default:
858: if (tuple + 2 > end)
859: return (NULL);
860: len = tuple[1] + 2;
861: break;
862: }
863:
864: if (tuple + len > end)
865: return (NULL);
866:
867: (*func)(tuple, len, data);
868:
869: if (PCMCIA_CISTPL_END == type || tuple + len == end)
870: return (NULL);
871:
872: return (tuple + len);
873: }
874:
875: #ifdef CARDBUS_DEBUG
876: static char *tuple_name(int type);
877:
878: static char *
879: tuple_name(int type)
880: {
881: static char *tuple_name_s [] = {
882: "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */
883: "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */
884: "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */
885: "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */
886: "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */
887: "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", /* 14-17 */
888: "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", /* 18-1B */
889: "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", /* 1C-1E */
890: "DEVICE_GEO_A", "MANFID", "FUNCID", "FUNCE", "SWIL", /* 1F-23 */
891: "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */
892: "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */
893: "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */
894: "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */
895: "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */
896: "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */
897: "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */
898: "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", /* 40-43 */
899: "DATE", "BATTERY", "ORG", "FORMAT_A" /* 44-47 */
900: };
901: #define NAME_LEN(x) (sizeof(x)/sizeof(x[0]))
902:
903: if (type > 0 && type < NAME_LEN(tuple_name_s))
904: return (tuple_name_s[type]);
905: else if (0xff == type)
906: return ("END");
907: else
908: return ("Reserved");
909: }
910:
911: static void
912: print_tuple(u_int8_t *tuple, int len, void *data)
913: {
914: int i;
915:
916: printf("tuple: %s len %d\n", tuple_name(tuple[0]), len);
917:
918: for (i = 0; i < len; ++i) {
919: if (i % 16 == 0)
920: printf(" 0x%02x:", i);
921: printf(" %x",tuple[i]);
922: if (i % 16 == 15)
923: printf("\n");
924: }
925: if (i % 16 != 0)
926: printf("\n");
927: }
928: #endif
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