1 /***********************license start***************
2 * Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
3 * reserved.
4 *
5 *
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9 *
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11 * notice, this list of conditions and the following disclaimer.
12 *
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14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
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20 * derived from this software without specific prior written
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36 *
37 ***********************license end**************************************/
38
39 /*
40 * octeon_ebt3000_cf.c
41 *
42 */
43
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
46
47 #include <sys/param.h>
48 #include <sys/bio.h>
49 #include <sys/systm.h>
50 #include <sys/sysctl.h>
51 #include <sys/ata.h>
52 #include <sys/bus.h>
53 #include <sys/kernel.h>
54 #include <sys/module.h>
55 #include <sys/rman.h>
56 #include <sys/power.h>
57 #include <sys/smp.h>
58 #include <sys/time.h>
59 #include <sys/timetc.h>
60 #include <sys/malloc.h>
61
62 #include <geom/geom.h>
63
64 #include <machine/clock.h>
65 #include <machine/locore.h>
66 #include <machine/md_var.h>
67 #include <machine/cpuregs.h>
68
69 #include <mips/cavium/octeon_pcmap_regs.h>
70
71 #include <contrib/octeon-sdk/cvmx.h>
72
73 /* ATA Commands */
74 #define CMD_READ_SECTOR 0x20
75 #define CMD_WRITE_SECTOR 0x30
76 #define CMD_IDENTIFY 0xEC
77
78 /* The ATA Task File */
79 #define TF_DATA 0x00
80 #define TF_ERROR 0x01
81 #define TF_PRECOMP 0x01
82 #define TF_SECTOR_COUNT 0x02
83 #define TF_SECTOR_NUMBER 0x03
84 #define TF_CYL_LSB 0x04
85 #define TF_CYL_MSB 0x05
86 #define TF_DRV_HEAD 0x06
87 #define TF_STATUS 0x07
88 #define TF_COMMAND 0x07
89
90 /* Status Register */
91 #define STATUS_BSY 0x80 /* Drive is busy */
92 #define STATUS_RDY 0x40 /* Drive is ready */
93 #define STATUS_DF 0x20 /* Device fault */
94 #define STATUS_DRQ 0x08 /* Data can be transferred */
95
96 /* Miscelaneous */
97 #define SECTOR_SIZE 512
98 #define WAIT_DELAY 1000
99 #define NR_TRIES 1000
100 #define SWAP_SHORT(x) ((x << 8) | (x >> 8))
101 #define MODEL_STR_SIZE 40
102
103 /* Globals */
104 /*
105 * There's three bus types supported by this driver.
106 *
107 * CF_8 -- Traditional PC Card IDE interface on an 8-bit wide bus. We assume
108 * the bool loader has configure attribute memory properly. We then access
109 * the device like old-school 8-bit IDE card (which is all a traditional PC Card
110 * interface really is).
111 * CF_16 -- Traditional PC Card IDE interface on a 16-bit wide bus. Registers on
112 * this bus are 16-bits wide too. When accessing registers in the task file, you
113 * have to do it in 16-bit chunks, and worry about masking out what you don't want
114 * or ORing together the traditional 8-bit values. We assume the bootloader does
115 * the right attribute memory initialization dance.
116 * CF_TRUE_IDE_8 - CF Card wired to True IDE mode. There's no Attribute memory
117 * space at all. Instead all the traditional 8-bit registers are there, but
118 * on a 16-bit bus where addr0 isn't wired. This means we need to read/write them
119 * 16-bit chunks, but only the lower 8 bits are valid. We do not (and can not)
120 * access this like CF_16 with the comingled registers. Yet we can't access
121 * this like CF_8 because of the register offset. Except the TF_DATA register
122 * appears to be full width?
123 */
124 void *base_addr;
125 int bus_type;
126 #define CF_8 1 /* 8-bit bus, no offsets - PC Card */
127 #define CF_16 2 /* 16-bit bus, registers shared - PC Card */
128 #define CF_TRUE_IDE_8 3 /* 16-bit bus, only lower 8-bits, TrueIDE */
129 const char *const cf_type[] = {
130 "impossible type",
131 "CF 8-bit",
132 "CF 16-bit",
133 "True IDE"
134 };
135
136 /* Device parameters */
137 struct drive_param{
138 union {
139 char buf[SECTOR_SIZE];
140 struct ata_params driveid;
141 } u;
142
143 char model[MODEL_STR_SIZE];
144 uint32_t nr_sectors;
145 uint16_t sector_size;
146 uint16_t heads;
147 uint16_t tracks;
148 uint16_t sec_track;
149 };
150
151 /* Device softc */
152 struct cf_priv {
153 device_t dev;
154 struct drive_param drive_param;
155
156 struct bio_queue_head cf_bq;
157 struct g_geom *cf_geom;
158 struct g_provider *cf_provider;
159
160 };
161
162 /* GEOM class implementation */
163 static g_access_t cf_access;
164 static g_start_t cf_start;
165 static g_ioctl_t cf_ioctl;
166
167 struct g_class g_cf_class = {
168 .name = "CF",
169 .version = G_VERSION,
170 .start = cf_start,
171 .access = cf_access,
172 .ioctl = cf_ioctl,
173 };
174
175 DECLARE_GEOM_CLASS(g_cf_class, g_cf);
176
177 /* Device methods */
178 static int cf_probe(device_t);
179 static void cf_identify(driver_t *, device_t);
180 static int cf_attach(device_t);
181 static void cf_attach_geom(void *, int);
182
183 /* ATA methods */
184 static int cf_cmd_identify(struct cf_priv *);
185 static int cf_cmd_write(uint32_t, uint32_t, void *);
186 static int cf_cmd_read(uint32_t, uint32_t, void *);
187 static int cf_wait_busy(void);
188 static int cf_send_cmd(uint32_t, uint8_t);
189
190 /* Miscelenous */
191 static void cf_swap_ascii(unsigned char[], char[]);
192
193
194 /* ------------------------------------------------------------------- *
195 * cf_access() *
196 * ------------------------------------------------------------------- */
cf_access(struct g_provider * pp,int r,int w,int e)197 static int cf_access (struct g_provider *pp, int r, int w, int e)
198 {
199 return (0);
200 }
201
202
203 /* ------------------------------------------------------------------- *
204 * cf_start() *
205 * ------------------------------------------------------------------- */
cf_start(struct bio * bp)206 static void cf_start (struct bio *bp)
207 {
208 struct cf_priv *cf_priv;
209 int error;
210
211 cf_priv = bp->bio_to->geom->softc;
212
213 /*
214 * Handle actual I/O requests. The request is passed down through
215 * the bio struct.
216 */
217
218 if(bp->bio_cmd & BIO_GETATTR) {
219 if (g_handleattr_int(bp, "GEOM::fwsectors", cf_priv->drive_param.sec_track))
220 return;
221 if (g_handleattr_int(bp, "GEOM::fwheads", cf_priv->drive_param.heads))
222 return;
223 g_io_deliver(bp, ENOIOCTL);
224 return;
225 }
226
227 if ((bp->bio_cmd & (BIO_READ | BIO_WRITE))) {
228
229 if (bp->bio_cmd & BIO_READ) {
230 error = cf_cmd_read(bp->bio_length / cf_priv->drive_param.sector_size,
231 bp->bio_offset / cf_priv->drive_param.sector_size, bp->bio_data);
232 } else if (bp->bio_cmd & BIO_WRITE) {
233 error = cf_cmd_write(bp->bio_length / cf_priv->drive_param.sector_size,
234 bp->bio_offset/cf_priv->drive_param.sector_size, bp->bio_data);
235 } else {
236 printf("%s: unrecognized bio_cmd %x.\n", __func__, bp->bio_cmd);
237 error = ENOTSUP;
238 }
239
240 if (error != 0) {
241 g_io_deliver(bp, error);
242 return;
243 }
244
245 bp->bio_resid = 0;
246 bp->bio_completed = bp->bio_length;
247 g_io_deliver(bp, 0);
248 }
249 }
250
251
cf_ioctl(struct g_provider * pp,u_long cmd,void * data,int fflag,struct thread * td)252 static int cf_ioctl (struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td)
253 {
254 return (0);
255 }
256
257
cf_inb_8(int port)258 static uint8_t cf_inb_8(int port)
259 {
260 /*
261 * Traditional 8-bit PC Card/CF bus access.
262 */
263 if (bus_type == CF_8) {
264 volatile uint8_t *task_file = (volatile uint8_t *)base_addr;
265 return task_file[port];
266 }
267
268 /*
269 * True IDE access. lower 8 bits on a 16-bit bus (see above).
270 */
271 volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
272 return task_file[port] & 0xff;
273 }
274
cf_outb_8(int port,uint8_t val)275 static void cf_outb_8(int port, uint8_t val)
276 {
277 /*
278 * Traditional 8-bit PC Card/CF bus access.
279 */
280 if (bus_type == CF_8) {
281 volatile uint8_t *task_file = (volatile uint8_t *)base_addr;
282 task_file[port] = val;
283 return;
284 }
285
286 /*
287 * True IDE access. lower 8 bits on a 16-bit bus (see above).
288 */
289 volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
290 task_file[port] = val & 0xff;
291 }
292
cf_inb_16(int port)293 static uint8_t cf_inb_16(int port)
294 {
295 volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
296 uint16_t val = task_file[port / 2];
297 if (port & 1)
298 return (val >> 8) & 0xff;
299 return val & 0xff;
300 }
301
cf_inw_16(int port)302 static uint16_t cf_inw_16(int port)
303 {
304 volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
305 uint16_t val = task_file[port / 2];
306 return val;
307 }
308
cf_outw_16(int port,uint16_t val)309 static void cf_outw_16(int port, uint16_t val)
310 {
311 volatile uint16_t *task_file = (volatile uint16_t *)base_addr;
312 task_file[port / 2] = val;
313 }
314
315 /* ------------------------------------------------------------------- *
316 * cf_cmd_read() *
317 * ------------------------------------------------------------------- *
318 *
319 * Read nr_sectors from the device starting from start_sector.
320 */
cf_cmd_read(uint32_t nr_sectors,uint32_t start_sector,void * buf)321 static int cf_cmd_read (uint32_t nr_sectors, uint32_t start_sector, void *buf)
322 {
323 unsigned long lba;
324 uint32_t count;
325 uint16_t *ptr_16;
326 uint8_t *ptr_8;
327 int error;
328
329 ptr_8 = (uint8_t*)buf;
330 ptr_16 = (uint16_t*)buf;
331 lba = start_sector;
332
333 while (nr_sectors--) {
334 error = cf_send_cmd(lba, CMD_READ_SECTOR);
335 if (error != 0) {
336 printf("%s: cf_send_cmd(CMD_READ_SECTOR) failed: %d\n", __func__, error);
337 return (error);
338 }
339
340 switch (bus_type)
341 {
342 case CF_8:
343 for (count = 0; count < SECTOR_SIZE; count++) {
344 *ptr_8++ = cf_inb_8(TF_DATA);
345 if ((count & 0xf) == 0)
346 (void)cf_inb_8(TF_STATUS);
347 }
348 break;
349 case CF_TRUE_IDE_8:
350 case CF_16:
351 default:
352 for (count = 0; count < SECTOR_SIZE; count+=2) {
353 uint16_t temp;
354 temp = cf_inw_16(TF_DATA);
355 *ptr_16++ = SWAP_SHORT(temp);
356 if ((count & 0xf) == 0)
357 (void)cf_inb_16(TF_STATUS);
358 }
359 break;
360 }
361
362 lba++;
363 }
364 return (0);
365 }
366
367
368 /* ------------------------------------------------------------------- *
369 * cf_cmd_write() *
370 * ------------------------------------------------------------------- *
371 *
372 * Write nr_sectors to the device starting from start_sector.
373 */
cf_cmd_write(uint32_t nr_sectors,uint32_t start_sector,void * buf)374 static int cf_cmd_write (uint32_t nr_sectors, uint32_t start_sector, void *buf)
375 {
376 uint32_t lba;
377 uint32_t count;
378 uint16_t *ptr_16;
379 uint8_t *ptr_8;
380 int error;
381
382 lba = start_sector;
383 ptr_8 = (uint8_t*)buf;
384 ptr_16 = (uint16_t*)buf;
385
386 while (nr_sectors--) {
387 error = cf_send_cmd(lba, CMD_WRITE_SECTOR);
388 if (error != 0) {
389 printf("%s: cf_send_cmd(CMD_WRITE_SECTOR) failed: %d\n", __func__, error);
390 return (error);
391 }
392
393 switch (bus_type)
394 {
395 case CF_8:
396 for (count = 0; count < SECTOR_SIZE; count++) {
397 cf_outb_8(TF_DATA, *ptr_8++);
398 if ((count & 0xf) == 0)
399 (void)cf_inb_8(TF_STATUS);
400 }
401 break;
402 case CF_TRUE_IDE_8:
403 case CF_16:
404 default:
405 for (count = 0; count < SECTOR_SIZE; count+=2) {
406 uint16_t temp = *ptr_16++;
407 cf_outw_16(TF_DATA, SWAP_SHORT(temp));
408 if ((count & 0xf) == 0)
409 (void)cf_inb_16(TF_STATUS);
410 }
411 break;
412 }
413
414 lba++;
415 }
416 return (0);
417 }
418
419
420 /* ------------------------------------------------------------------- *
421 * cf_cmd_identify() *
422 * ------------------------------------------------------------------- *
423 *
424 * Read parameters and other information from the drive and store
425 * it in the drive_param structure
426 *
427 */
cf_cmd_identify(struct cf_priv * cf_priv)428 static int cf_cmd_identify(struct cf_priv *cf_priv)
429 {
430 int count;
431 int error;
432
433 error = cf_send_cmd(0, CMD_IDENTIFY);
434 if (error != 0) {
435 printf("%s: identify failed: %d\n", __func__, error);
436 return (error);
437 }
438 switch (bus_type)
439 {
440 case CF_8:
441 for (count = 0; count < SECTOR_SIZE; count++)
442 cf_priv->drive_param.u.buf[count] = cf_inb_8(TF_DATA);
443 break;
444 case CF_TRUE_IDE_8:
445 case CF_16:
446 default:
447 for (count = 0; count < SECTOR_SIZE; count += 2) {
448 uint16_t temp;
449 temp = cf_inw_16(TF_DATA);
450
451 /* endianess will be swapped below */
452 cf_priv->drive_param.u.buf[count] = (temp & 0xff);
453 cf_priv->drive_param.u.buf[count + 1] = (temp & 0xff00) >> 8;
454 }
455 break;
456 }
457
458 cf_swap_ascii(cf_priv->drive_param.u.driveid.model, cf_priv->drive_param.model);
459
460 cf_priv->drive_param.sector_size = 512; //= SWAP_SHORT (cf_priv->drive_param.u.driveid.sector_bytes);
461 cf_priv->drive_param.heads = SWAP_SHORT (cf_priv->drive_param.u.driveid.current_heads);
462 cf_priv->drive_param.tracks = SWAP_SHORT (cf_priv->drive_param.u.driveid.current_cylinders);
463 cf_priv->drive_param.sec_track = SWAP_SHORT (cf_priv->drive_param.u.driveid.current_sectors);
464 cf_priv->drive_param.nr_sectors = (uint32_t)SWAP_SHORT (cf_priv->drive_param.u.driveid.lba_size_1) |
465 ((uint32_t)SWAP_SHORT (cf_priv->drive_param.u.driveid.lba_size_2));
466 if (bootverbose) {
467 printf(" model %s\n", cf_priv->drive_param.model);
468 printf(" heads %d tracks %d sec_tracks %d sectors %d\n",
469 cf_priv->drive_param.heads, cf_priv->drive_param.tracks,
470 cf_priv->drive_param.sec_track, cf_priv->drive_param.nr_sectors);
471 }
472
473 return (0);
474 }
475
476
477 /* ------------------------------------------------------------------- *
478 * cf_send_cmd() *
479 * ------------------------------------------------------------------- *
480 *
481 * Send command to read/write one sector specified by lba.
482 *
483 */
cf_send_cmd(uint32_t lba,uint8_t cmd)484 static int cf_send_cmd (uint32_t lba, uint8_t cmd)
485 {
486 switch (bus_type)
487 {
488 case CF_8:
489 case CF_TRUE_IDE_8:
490 while (cf_inb_8(TF_STATUS) & STATUS_BSY)
491 DELAY(WAIT_DELAY);
492 cf_outb_8(TF_SECTOR_COUNT, 1);
493 cf_outb_8(TF_SECTOR_NUMBER, lba & 0xff);
494 cf_outb_8(TF_CYL_LSB, (lba >> 8) & 0xff);
495 cf_outb_8(TF_CYL_MSB, (lba >> 16) & 0xff);
496 cf_outb_8(TF_DRV_HEAD, ((lba >> 24) & 0xff) | 0xe0);
497 cf_outb_8(TF_COMMAND, cmd);
498 break;
499 case CF_16:
500 default:
501 while (cf_inb_16(TF_STATUS) & STATUS_BSY)
502 DELAY(WAIT_DELAY);
503 cf_outw_16(TF_SECTOR_COUNT, 1 | ((lba & 0xff) << 8));
504 cf_outw_16(TF_CYL_LSB, ((lba >> 8) & 0xff) | (((lba >> 16) & 0xff) << 8));
505 cf_outw_16(TF_DRV_HEAD, (((lba >> 24) & 0xff) | 0xe0) | (cmd << 8));
506 break;
507 }
508
509 return (cf_wait_busy());
510 }
511
512 /* ------------------------------------------------------------------- *
513 * cf_wait_busy() *
514 * ------------------------------------------------------------------- *
515 *
516 * Wait until the drive finishes a given command and data is
517 * ready to be transferred. This is done by repeatedly checking
518 * the BSY bit of the status register. When the controller is ready for
519 * data transfer, it clears the BSY bit and sets the DRQ bit.
520 *
521 * If the DF bit is ever set, we return error.
522 *
523 * This code originally spun on DRQ. If that behavior turns out to be
524 * necessary, a flag can be added or this function can be called
525 * repeatedly as long as it is returning ENXIO.
526 */
cf_wait_busy(void)527 static int cf_wait_busy (void)
528 {
529 uint8_t status;
530
531 switch (bus_type)
532 {
533 case CF_8:
534 case CF_TRUE_IDE_8:
535 status = cf_inb_8(TF_STATUS);
536 while ((status & STATUS_BSY) == STATUS_BSY) {
537 if ((status & STATUS_DF) != 0) {
538 printf("%s: device fault (status=%x)\n", __func__, status);
539 return (EIO);
540 }
541 DELAY(WAIT_DELAY);
542 status = cf_inb_8(TF_STATUS);
543 }
544 break;
545 case CF_16:
546 default:
547 status = cf_inb_16(TF_STATUS);
548 while ((status & STATUS_BSY) == STATUS_BSY) {
549 if ((status & STATUS_DF) != 0) {
550 printf("%s: device fault (status=%x)\n", __func__, status);
551 return (EIO);
552 }
553 DELAY(WAIT_DELAY);
554 status = cf_inb_16(TF_STATUS);
555 }
556 break;
557 }
558
559 /* DRQ is only for when read data is actually available; check BSY */
560 /* Some vendors do assert DRQ, but not all. Check BSY instead. */
561 if (status & STATUS_BSY) {
562 printf("%s: device not ready (status=%x)\n", __func__, status);
563 return (ENXIO);
564 }
565
566 return (0);
567 }
568
569 /* ------------------------------------------------------------------- *
570 * cf_swap_ascii() *
571 * ------------------------------------------------------------------- *
572 *
573 * The ascii string returned by the controller specifying
574 * the model of the drive is byte-swaped. This routine
575 * corrects the byte ordering.
576 *
577 */
cf_swap_ascii(unsigned char str1[],char str2[])578 static void cf_swap_ascii (unsigned char str1[], char str2[])
579 {
580 int i;
581
582 for(i = 0; i < MODEL_STR_SIZE; i++)
583 str2[i] = str1[i ^ 1];
584 }
585
586
587 /* ------------------------------------------------------------------- *
588 * cf_probe() *
589 * ------------------------------------------------------------------- */
590
cf_probe(device_t dev)591 static int cf_probe (device_t dev)
592 {
593 if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
594 return (ENXIO);
595
596 if (device_get_unit(dev) != 0) {
597 panic("can't attach more devices\n");
598 }
599
600 device_set_desc(dev, "Octeon Compact Flash Driver");
601
602 return (BUS_PROBE_NOWILDCARD);
603 }
604
605 /* ------------------------------------------------------------------- *
606 * cf_identify() *
607 * ------------------------------------------------------------------- *
608 *
609 * Find the bootbus region for the CF to determine
610 * 16 or 8 bit and check to see if device is
611 * inserted.
612 *
613 */
cf_identify(driver_t * drv,device_t parent)614 static void cf_identify (driver_t *drv, device_t parent)
615 {
616 int bus_region;
617 int count = 0;
618 cvmx_mio_boot_reg_cfgx_t cfg;
619 uint64_t phys_base;
620
621 if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
622 return;
623
624 phys_base = cvmx_sysinfo_get()->compact_flash_common_base_addr;
625 if (phys_base == 0)
626 return;
627 base_addr = cvmx_phys_to_ptr(phys_base);
628
629 for (bus_region = 0; bus_region < 8; bus_region++)
630 {
631 cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(bus_region));
632 if (cfg.s.base == phys_base >> 16)
633 {
634 if (cvmx_sysinfo_get()->compact_flash_attribute_base_addr == 0)
635 bus_type = CF_TRUE_IDE_8;
636 else
637 bus_type = (cfg.s.width) ? CF_16 : CF_8;
638 printf("Compact flash found in bootbus region %d (%s).\n", bus_region, cf_type[bus_type]);
639 break;
640 }
641 }
642
643 switch (bus_type)
644 {
645 case CF_8:
646 case CF_TRUE_IDE_8:
647 /* Check if CF is inserted */
648 while (cf_inb_8(TF_STATUS) & STATUS_BSY) {
649 if ((count++) == NR_TRIES ) {
650 printf("Compact Flash not present\n");
651 return;
652 }
653 DELAY(WAIT_DELAY);
654 }
655 break;
656 case CF_16:
657 default:
658 /* Check if CF is inserted */
659 while (cf_inb_16(TF_STATUS) & STATUS_BSY) {
660 if ((count++) == NR_TRIES ) {
661 printf("Compact Flash not present\n");
662 return;
663 }
664 DELAY(WAIT_DELAY);
665 }
666 break;
667 }
668
669 BUS_ADD_CHILD(parent, 0, "cf", 0);
670 }
671
672
673 /* ------------------------------------------------------------------- *
674 * cf_attach_geom() *
675 * ------------------------------------------------------------------- */
676
cf_attach_geom(void * arg,int flag)677 static void cf_attach_geom (void *arg, int flag)
678 {
679 struct cf_priv *cf_priv;
680
681 cf_priv = (struct cf_priv *) arg;
682 cf_priv->cf_geom = g_new_geomf(&g_cf_class, "cf%d", device_get_unit(cf_priv->dev));
683 cf_priv->cf_geom->softc = cf_priv;
684 cf_priv->cf_provider = g_new_providerf(cf_priv->cf_geom, cf_priv->cf_geom->name);
685 cf_priv->cf_provider->sectorsize = cf_priv->drive_param.sector_size;
686 cf_priv->cf_provider->mediasize = cf_priv->drive_param.nr_sectors * cf_priv->cf_provider->sectorsize;
687 g_error_provider(cf_priv->cf_provider, 0);
688 }
689
690 /* ------------------------------------------------------------------- *
691 * cf_attach() *
692 * ------------------------------------------------------------------- */
693
cf_attach(device_t dev)694 static int cf_attach (device_t dev)
695 {
696 struct cf_priv *cf_priv;
697 int error;
698
699 if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
700 return (ENXIO);
701
702 cf_priv = device_get_softc(dev);
703 cf_priv->dev = dev;
704
705 error = cf_cmd_identify(cf_priv);
706 if (error != 0) {
707 device_printf(dev, "cf_cmd_identify failed: %d\n", error);
708 return (error);
709 }
710
711 g_post_event(cf_attach_geom, cf_priv, M_WAITOK, NULL);
712 bioq_init(&cf_priv->cf_bq);
713
714 return 0;
715 }
716
717
718 static device_method_t cf_methods[] = {
719 /* Device interface */
720 DEVMETHOD(device_probe, cf_probe),
721 DEVMETHOD(device_identify, cf_identify),
722 DEVMETHOD(device_attach, cf_attach),
723 DEVMETHOD(device_detach, bus_generic_detach),
724 DEVMETHOD(device_shutdown, bus_generic_shutdown),
725
726 { 0, 0 }
727 };
728
729 static driver_t cf_driver = {
730 "cf",
731 cf_methods,
732 sizeof(struct cf_priv)
733 };
734
735 static devclass_t cf_devclass;
736
737 DRIVER_MODULE(cf, nexus, cf_driver, cf_devclass, 0, 0);
738