1 /*-
2 * 1. Redistributions of source code must retain the
3 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Amancio Hasty and
17 * Roger Hardiman
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36
37 /*
38 * This is part of the Driver for Video Capture Cards (Frame grabbers)
39 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
40 * chipset.
41 * Copyright Roger Hardiman and Amancio Hasty.
42 *
43 * bktr_os : This has all the Operating System dependant code,
44 * probe/attach and open/close/ioctl/read/mmap
45 * memory allocation
46 * PCI bus interfacing
47 */
48
49 #include "opt_bktr.h" /* include any kernel config options */
50
51 #define FIFO_RISC_DISABLED 0
52 #define ALL_INTS_DISABLED 0
53
54
55 /*******************/
56 /* *** FreeBSD *** */
57 /*******************/
58 #ifdef __FreeBSD__
59
60 #include <sys/param.h>
61 #include <sys/systm.h>
62 #include <sys/conf.h>
63 #include <sys/uio.h>
64 #include <sys/kernel.h>
65 #include <sys/module.h>
66 #include <sys/signalvar.h>
67 #include <sys/malloc.h>
68 #include <sys/mman.h>
69 #include <sys/poll.h>
70 #if __FreeBSD_version >= 500014
71 #include <sys/selinfo.h>
72 #else
73 #include <sys/select.h>
74 #endif
75
76 #include <vm/vm.h>
77 #include <vm/vm_kern.h>
78 #include <vm/pmap.h>
79 #include <vm/vm_extern.h>
80
81 #include <sys/bus.h> /* used by smbus and newbus */
82
83 #include <machine/bus.h> /* used by bus space and newbus */
84 #include <sys/bus.h>
85
86 #include <sys/rman.h> /* used by newbus */
87 #include <machine/resource.h> /* used by newbus */
88
89 #if (__FreeBSD_version < 500000)
90 #include <machine/clock.h> /* for DELAY */
91 #include <pci/pcivar.h>
92 #include <pci/pcireg.h>
93 #else
94 #include <dev/pci/pcivar.h>
95 #include <dev/pci/pcireg.h>
96 #endif
97
98 #include <sys/sysctl.h>
99 int bt848_card = -1;
100 int bt848_tuner = -1;
101 int bt848_reverse_mute = -1;
102 int bt848_format = -1;
103 int bt848_slow_msp_audio = -1;
104 #ifdef BKTR_NEW_MSP34XX_DRIVER
105 int bt848_stereo_once = 0; /* no continuous stereo monitoring */
106 int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
107 the autoscan seems work well only with FM... */
108 int bt848_dolby = 0;
109 #endif
110
111 static SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt");
112 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, "");
113 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, "");
114 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, "");
115 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, "");
116 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, "");
117 #ifdef BKTR_NEW_MSP34XX_DRIVER
118 SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, "");
119 SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, "");
120 SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, "");
121 #endif
122
123 #endif /* end freebsd section */
124
125
126
127 /****************/
128 /* *** BSDI *** */
129 /****************/
130 #ifdef __bsdi__
131 #endif /* __bsdi__ */
132
133
134 /**************************/
135 /* *** OpenBSD/NetBSD *** */
136 /**************************/
137 #if defined(__NetBSD__) || defined(__OpenBSD__)
138
139 #include <sys/param.h>
140 #include <sys/systm.h>
141 #include <sys/conf.h>
142 #include <sys/uio.h>
143 #include <sys/kernel.h>
144 #include <sys/signalvar.h>
145 #include <sys/mman.h>
146 #include <sys/poll.h>
147 #include <sys/select.h>
148 #include <sys/vnode.h>
149
150 #include <vm/vm.h>
151
152 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
153
154 #ifndef __NetBSD__
155 #include <vm/vm_kern.h>
156 #include <vm/pmap.h>
157 #include <vm/vm_extern.h>
158 #endif
159
160 #include <sys/device.h>
161 #include <dev/pci/pcivar.h>
162 #include <dev/pci/pcireg.h>
163 #include <dev/pci/pcidevs.h>
164
165 #define BKTR_DEBUG
166 #ifdef BKTR_DEBUG
167 int bktr_debug = 0;
168 #define DPR(x) (bktr_debug ? printf x : 0)
169 #else
170 #define DPR(x)
171 #endif
172 #endif /* __NetBSD__ || __OpenBSD__ */
173
174
175 #ifdef __NetBSD__
176 #include <dev/ic/bt8xx.h> /* NetBSD location for .h files */
177 #include <dev/pci/bktr/bktr_reg.h>
178 #include <dev/pci/bktr/bktr_tuner.h>
179 #include <dev/pci/bktr/bktr_card.h>
180 #include <dev/pci/bktr/bktr_audio.h>
181 #include <dev/pci/bktr/bktr_core.h>
182 #include <dev/pci/bktr/bktr_os.h>
183 #else /* Traditional location for .h files */
184 #include <dev/bktr/ioctl_meteor.h>
185 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
186 #include <dev/bktr/bktr_reg.h>
187 #include <dev/bktr/bktr_tuner.h>
188 #include <dev/bktr/bktr_card.h>
189 #include <dev/bktr/bktr_audio.h>
190 #include <dev/bktr/bktr_core.h>
191 #include <dev/bktr/bktr_os.h>
192
193 #if defined(BKTR_USE_FREEBSD_SMBUS)
194 #include <dev/bktr/bktr_i2c.h>
195
196 #include "iicbb_if.h"
197 #include "smbus_if.h"
198 #endif
199 #endif
200
201
202 /****************************/
203 /* *** FreeBSD 4.x code *** */
204 /****************************/
205
206 static int bktr_probe( device_t dev );
207 static int bktr_attach( device_t dev );
208 static int bktr_detach( device_t dev );
209 static int bktr_shutdown( device_t dev );
bktr_intr(void * arg)210 static void bktr_intr(void *arg) { common_bktr_intr(arg); }
211
212 static device_method_t bktr_methods[] = {
213 /* Device interface */
214 DEVMETHOD(device_probe, bktr_probe),
215 DEVMETHOD(device_attach, bktr_attach),
216 DEVMETHOD(device_detach, bktr_detach),
217 DEVMETHOD(device_shutdown, bktr_shutdown),
218
219 #if defined(BKTR_USE_FREEBSD_SMBUS)
220 /* iicbb interface */
221 DEVMETHOD(iicbb_callback, bti2c_iic_callback),
222 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda),
223 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl),
224 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda),
225 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl),
226 DEVMETHOD(iicbb_reset, bti2c_iic_reset),
227
228 /* smbus interface */
229 DEVMETHOD(smbus_callback, bti2c_smb_callback),
230 DEVMETHOD(smbus_writeb, bti2c_smb_writeb),
231 DEVMETHOD(smbus_writew, bti2c_smb_writew),
232 DEVMETHOD(smbus_readb, bti2c_smb_readb),
233 #endif
234
235 { 0, 0 }
236 };
237
238 static driver_t bktr_driver = {
239 "bktr",
240 bktr_methods,
241 sizeof(struct bktr_softc),
242 };
243
244 static devclass_t bktr_devclass;
245
246 static d_open_t bktr_open;
247 static d_close_t bktr_close;
248 static d_read_t bktr_read;
249 static d_write_t bktr_write;
250 static d_ioctl_t bktr_ioctl;
251 static d_mmap_t bktr_mmap;
252 static d_poll_t bktr_poll;
253
254 static struct cdevsw bktr_cdevsw = {
255 .d_version = D_VERSION,
256 .d_flags = D_NEEDGIANT,
257 .d_open = bktr_open,
258 .d_close = bktr_close,
259 .d_read = bktr_read,
260 .d_write = bktr_write,
261 .d_ioctl = bktr_ioctl,
262 .d_poll = bktr_poll,
263 .d_mmap = bktr_mmap,
264 .d_name = "bktr",
265 };
266
267 #ifdef BKTR_USE_FREEBSD_SMBUS
268 #include <dev/iicbus/iiconf.h>
269 #include <dev/smbus/smbconf.h>
270 MODULE_DEPEND(bktr, iicbb, IICBB_MINVER, IICBB_MODVER, IICBB_MAXVER);
271 MODULE_DEPEND(bktr, iicbus, IICBUS_MINVER, IICBUS_MODVER, IICBUS_MAXVER);
272 MODULE_DEPEND(bktr, smbus, SMBUS_MINVER, SMBUS_MODVER, SMBUS_MAXVER);
273 #endif
274 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0);
275 MODULE_DEPEND(bktr, bktr_mem, 1,1,1);
276 MODULE_VERSION(bktr, 1);
277
278
279 /*
280 * the boot time probe routine.
281 */
282 static int
bktr_probe(device_t dev)283 bktr_probe( device_t dev )
284 {
285 unsigned int type = pci_get_devid(dev);
286 unsigned int rev = pci_get_revid(dev);
287
288 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE)
289 {
290 switch (PCI_PRODUCT(type)) {
291 case PCI_PRODUCT_BROOKTREE_BT848:
292 if (rev == 0x12)
293 device_set_desc(dev, "BrookTree 848A");
294 else
295 device_set_desc(dev, "BrookTree 848");
296 return BUS_PROBE_DEFAULT;
297 case PCI_PRODUCT_BROOKTREE_BT849:
298 device_set_desc(dev, "BrookTree 849A");
299 return BUS_PROBE_DEFAULT;
300 case PCI_PRODUCT_BROOKTREE_BT878:
301 device_set_desc(dev, "BrookTree 878");
302 return BUS_PROBE_DEFAULT;
303 case PCI_PRODUCT_BROOKTREE_BT879:
304 device_set_desc(dev, "BrookTree 879");
305 return BUS_PROBE_DEFAULT;
306 }
307 };
308
309 return ENXIO;
310 }
311
312
313 /*
314 * the attach routine.
315 */
316 static int
bktr_attach(device_t dev)317 bktr_attach( device_t dev )
318 {
319 u_long latency;
320 u_long fun;
321 unsigned int rev;
322 unsigned int unit;
323 int error = 0;
324 #ifdef BROOKTREE_IRQ
325 u_long old_irq, new_irq;
326 #endif
327
328 struct bktr_softc *bktr = device_get_softc(dev);
329
330 unit = device_get_unit(dev);
331
332 /* build the device name for bktr_name() */
333 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
334
335 /*
336 * Enable bus mastering and Memory Mapped device
337 */
338 pci_enable_busmaster(dev);
339
340 /*
341 * Map control/status registers.
342 */
343 bktr->mem_rid = PCIR_BAR(0);
344 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
345 &bktr->mem_rid, RF_ACTIVE);
346
347 if (!bktr->res_mem) {
348 device_printf(dev, "could not map memory\n");
349 error = ENXIO;
350 goto fail;
351 }
352 bktr->memt = rman_get_bustag(bktr->res_mem);
353 bktr->memh = rman_get_bushandle(bktr->res_mem);
354
355
356 /*
357 * Disable the brooktree device
358 */
359 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
360 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
361
362
363 #ifdef BROOKTREE_IRQ /* from the configuration file */
364 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
365 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
366 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
367 printf("bktr%d: attach: irq changed from %d to %d\n",
368 unit, (old_irq & 0xff), (new_irq & 0xff));
369 #endif
370
371 /*
372 * Allocate our interrupt.
373 */
374 bktr->irq_rid = 0;
375 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
376 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
377 if (bktr->res_irq == NULL) {
378 device_printf(dev, "could not map interrupt\n");
379 error = ENXIO;
380 goto fail;
381 }
382
383 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
384 NULL, bktr_intr, bktr, &bktr->res_ih);
385 if (error) {
386 device_printf(dev, "could not setup irq\n");
387 goto fail;
388
389 }
390
391
392 /* Update the Device Control Register */
393 /* on Bt878 and Bt879 cards */
394 fun = pci_read_config( dev, 0x40, 2);
395 fun = fun | 1; /* Enable writes to the sub-system vendor ID */
396
397 #if defined( BKTR_430_FX_MODE )
398 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
399 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
400 #endif
401
402 #if defined( BKTR_SIS_VIA_MODE )
403 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
404 fun = fun | 4; /* Enable SiS/VIA compatibility mode (useful for
405 OPTi chipset motherboards too */
406 #endif
407 pci_write_config(dev, 0x40, fun, 2);
408
409 #if defined(BKTR_USE_FREEBSD_SMBUS)
410 if (bt848_i2c_attach(dev))
411 printf("bktr%d: i2c_attach: can't attach\n", unit);
412 #endif
413
414 /*
415 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
416 * you have more than four, then 16 would probably be a better value.
417 */
418 #ifndef BROOKTREE_DEF_LATENCY_VALUE
419 #define BROOKTREE_DEF_LATENCY_VALUE 10
420 #endif
421 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
422 latency = (latency >> 8) & 0xff;
423 if ( bootverbose ) {
424 if (latency)
425 printf("brooktree%d: PCI bus latency is", unit);
426 else
427 printf("brooktree%d: PCI bus latency was 0 changing to",
428 unit);
429 }
430 if ( !latency ) {
431 latency = BROOKTREE_DEF_LATENCY_VALUE;
432 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
433 }
434 if ( bootverbose ) {
435 printf(" %d.\n", (int) latency);
436 }
437
438 /* read the pci device id and revision id */
439 fun = pci_get_devid(dev);
440 rev = pci_get_revid(dev);
441
442 /* call the common attach code */
443 common_bktr_attach( bktr, unit, fun, rev );
444
445 /* make the device entries */
446 bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
447 0, 0, 0444, "bktr%d", unit);
448 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
449 0, 0, 0444, "tuner%d", unit);
450 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
451 0, 0, 0444, "vbi%d" , unit);
452
453
454 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
455 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
456 #if (__FreeBSD_version >=500000)
457 if (unit == 0) {
458 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
459 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
460 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
461 }
462 #endif
463
464 return 0;
465
466 fail:
467 if (bktr->res_irq)
468 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
469 if (bktr->res_mem)
470 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
471 return error;
472
473 }
474
475 /*
476 * the detach routine.
477 */
478 static int
bktr_detach(device_t dev)479 bktr_detach( device_t dev )
480 {
481 struct bktr_softc *bktr = device_get_softc(dev);
482
483 #ifdef BKTR_NEW_MSP34XX_DRIVER
484 /* Disable the soundchip and kernel thread */
485 if (bktr->msp3400c_info != NULL)
486 msp_detach(bktr);
487 #endif
488
489 /* Disable the brooktree device */
490 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
491 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
492
493 #if defined(BKTR_USE_FREEBSD_SMBUS)
494 if (bt848_i2c_detach(dev))
495 printf("bktr%d: i2c_attach: can't attach\n",
496 device_get_unit(dev));
497 #endif
498 #ifdef USE_VBIMUTEX
499 mtx_destroy(&bktr->vbimutex);
500 #endif
501
502 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
503 /* The memory is retained by the bktr_mem module so we can unload and */
504 /* then reload the main bktr driver module */
505
506 /* Unregister the /dev/bktrN, tunerN and vbiN devices,
507 * the aliases for unit 0 are automatically destroyed */
508 destroy_dev(bktr->vbidev);
509 destroy_dev(bktr->tunerdev);
510 destroy_dev(bktr->bktrdev);
511
512 /*
513 * Deallocate resources.
514 */
515 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
516 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
517 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
518
519 return 0;
520 }
521
522 /*
523 * the shutdown routine.
524 */
525 static int
bktr_shutdown(device_t dev)526 bktr_shutdown( device_t dev )
527 {
528 struct bktr_softc *bktr = device_get_softc(dev);
529
530 /* Disable the brooktree device */
531 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
532 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
533
534 return 0;
535 }
536
537
538 /*
539 * Special Memory Allocation
540 */
541 vm_offset_t
get_bktr_mem(int unit,unsigned size)542 get_bktr_mem( int unit, unsigned size )
543 {
544 vm_offset_t addr = 0;
545
546 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
547 0xffffffff, 1<<24, 0);
548 if (addr == 0)
549 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
550 0xffffffff, PAGE_SIZE, 0);
551 if (addr == 0) {
552 printf("bktr%d: Unable to allocate %d bytes of memory.\n",
553 unit, size);
554 }
555
556 return( addr );
557 }
558
559
560 /*---------------------------------------------------------
561 **
562 ** BrookTree 848 character device driver routines
563 **
564 **---------------------------------------------------------
565 */
566
567 #define VIDEO_DEV 0x00
568 #define TUNER_DEV 0x01
569 #define VBI_DEV 0x02
570
571 #define UNIT(x) ((x) & 0x0f)
572 #define FUNCTION(x) (x >> 4)
573
574 /*
575 *
576 */
577 static int
bktr_open(struct cdev * dev,int flags,int fmt,struct thread * td)578 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
579 {
580 bktr_ptr_t bktr;
581 int unit;
582 int result;
583
584 unit = UNIT( dev2unit(dev) );
585
586 /* Get the device data */
587 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
588 if (bktr == NULL) {
589 /* the device is no longer valid/functioning */
590 return (ENXIO);
591 }
592
593 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
594 return( ENXIO );
595
596 /* Record that the device is now busy */
597 device_busy(devclass_get_device(bktr_devclass, unit));
598
599
600 if (bt848_card != -1) {
601 if ((bt848_card >> 8 == unit ) &&
602 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
603 if ( bktr->bt848_card != (bt848_card & 0xff) ) {
604 bktr->bt848_card = (bt848_card & 0xff);
605 probeCard(bktr, FALSE, unit);
606 }
607 }
608 }
609
610 if (bt848_tuner != -1) {
611 if ((bt848_tuner >> 8 == unit ) &&
612 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
613 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
614 bktr->bt848_tuner = (bt848_tuner & 0xff);
615 probeCard(bktr, FALSE, unit);
616 }
617 }
618 }
619
620 if (bt848_reverse_mute != -1) {
621 if ((bt848_reverse_mute >> 8) == unit ) {
622 bktr->reverse_mute = bt848_reverse_mute & 0xff;
623 }
624 }
625
626 if (bt848_slow_msp_audio != -1) {
627 if ((bt848_slow_msp_audio >> 8) == unit ) {
628 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
629 }
630 }
631
632 #ifdef BKTR_NEW_MSP34XX_DRIVER
633 if (bt848_stereo_once != 0) {
634 if ((bt848_stereo_once >> 8) == unit ) {
635 bktr->stereo_once = (bt848_stereo_once & 0xff);
636 }
637 }
638
639 if (bt848_amsound != -1) {
640 if ((bt848_amsound >> 8) == unit ) {
641 bktr->amsound = (bt848_amsound & 0xff);
642 }
643 }
644
645 if (bt848_dolby != -1) {
646 if ((bt848_dolby >> 8) == unit ) {
647 bktr->dolby = (bt848_dolby & 0xff);
648 }
649 }
650 #endif
651
652 switch ( FUNCTION( dev2unit(dev) ) ) {
653 case VIDEO_DEV:
654 result = video_open( bktr );
655 break;
656 case TUNER_DEV:
657 result = tuner_open( bktr );
658 break;
659 case VBI_DEV:
660 result = vbi_open( bktr );
661 break;
662 default:
663 result = ENXIO;
664 break;
665 }
666
667 /* If there was an error opening the device, undo the busy status */
668 if (result != 0)
669 device_unbusy(devclass_get_device(bktr_devclass, unit));
670 return( result );
671 }
672
673
674 /*
675 *
676 */
677 static int
bktr_close(struct cdev * dev,int flags,int fmt,struct thread * td)678 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
679 {
680 bktr_ptr_t bktr;
681 int unit;
682 int result;
683
684 unit = UNIT( dev2unit(dev) );
685
686 /* Get the device data */
687 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
688 if (bktr == NULL) {
689 /* the device is no longer valid/functioning */
690 return (ENXIO);
691 }
692
693 switch ( FUNCTION( dev2unit(dev) ) ) {
694 case VIDEO_DEV:
695 result = video_close( bktr );
696 break;
697 case TUNER_DEV:
698 result = tuner_close( bktr );
699 break;
700 case VBI_DEV:
701 result = vbi_close( bktr );
702 break;
703 default:
704 return (ENXIO);
705 break;
706 }
707
708 device_unbusy(devclass_get_device(bktr_devclass, unit));
709 return( result );
710 }
711
712
713 /*
714 *
715 */
716 static int
bktr_read(struct cdev * dev,struct uio * uio,int ioflag)717 bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
718 {
719 bktr_ptr_t bktr;
720 int unit;
721
722 unit = UNIT(dev2unit(dev));
723
724 /* Get the device data */
725 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
726 if (bktr == NULL) {
727 /* the device is no longer valid/functioning */
728 return (ENXIO);
729 }
730
731 switch ( FUNCTION( dev2unit(dev) ) ) {
732 case VIDEO_DEV:
733 return( video_read( bktr, unit, dev, uio ) );
734 case VBI_DEV:
735 return( vbi_read( bktr, uio, ioflag ) );
736 }
737 return( ENXIO );
738 }
739
740
741 /*
742 *
743 */
744 static int
bktr_write(struct cdev * dev,struct uio * uio,int ioflag)745 bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
746 {
747 return( EINVAL ); /* XXX or ENXIO ? */
748 }
749
750
751 /*
752 *
753 */
754 static int
bktr_ioctl(struct cdev * dev,ioctl_cmd_t cmd,caddr_t arg,int flag,struct thread * td)755 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
756 {
757 bktr_ptr_t bktr;
758 int unit;
759
760 unit = UNIT(dev2unit(dev));
761
762 /* Get the device data */
763 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
764 if (bktr == NULL) {
765 /* the device is no longer valid/functioning */
766 return (ENXIO);
767 }
768
769 #ifdef BKTR_GPIO_ACCESS
770 if (bktr->bigbuf == 0 && cmd != BT848_GPIO_GET_EN &&
771 cmd != BT848_GPIO_SET_EN && cmd != BT848_GPIO_GET_DATA &&
772 cmd != BT848_GPIO_SET_DATA) /* no frame buffer allocated (ioctl failed) */
773 return( ENOMEM );
774 #else
775 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
776 return( ENOMEM );
777 #endif
778
779 switch ( FUNCTION( dev2unit(dev) ) ) {
780 case VIDEO_DEV:
781 return( video_ioctl( bktr, unit, cmd, arg, td ) );
782 case TUNER_DEV:
783 return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
784 }
785
786 return( ENXIO );
787 }
788
789
790 /*
791 *
792 */
793 static int
bktr_mmap(struct cdev * dev,vm_ooffset_t offset,vm_paddr_t * paddr,int nprot,vm_memattr_t * memattr)794 bktr_mmap( struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
795 int nprot, vm_memattr_t *memattr )
796 {
797 int unit;
798 bktr_ptr_t bktr;
799
800 unit = UNIT(dev2unit(dev));
801
802 if (FUNCTION(dev2unit(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
803 return( -1 );
804
805 /* Get the device data */
806 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
807 if (bktr == NULL) {
808 /* the device is no longer valid/functioning */
809 return (ENXIO);
810 }
811
812 if (nprot & PROT_EXEC)
813 return( -1 );
814
815 if (offset < 0)
816 return( -1 );
817
818 if (offset >= bktr->alloc_pages * PAGE_SIZE)
819 return( -1 );
820
821 *paddr = vtophys(bktr->bigbuf) + offset;
822 return( 0 );
823 }
824
825 static int
bktr_poll(struct cdev * dev,int events,struct thread * td)826 bktr_poll( struct cdev *dev, int events, struct thread *td)
827 {
828 int unit;
829 bktr_ptr_t bktr;
830 int revents = 0;
831 DECLARE_INTR_MASK(s);
832
833 unit = UNIT(dev2unit(dev));
834
835 /* Get the device data */
836 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
837 if (bktr == NULL) {
838 /* the device is no longer valid/functioning */
839 return (ENXIO);
840 }
841
842 LOCK_VBI(bktr);
843 DISABLE_INTR(s);
844
845 if (events & (POLLIN | POLLRDNORM)) {
846
847 switch ( FUNCTION( dev2unit(dev) ) ) {
848 case VBI_DEV:
849 if(bktr->vbisize == 0)
850 selrecord(td, &bktr->vbi_select);
851 else
852 revents |= events & (POLLIN | POLLRDNORM);
853 break;
854 }
855 }
856
857 ENABLE_INTR(s);
858 UNLOCK_VBI(bktr);
859
860 return (revents);
861 }
862
863 /*****************/
864 /* *** BSDI *** */
865 /*****************/
866
867 #if defined(__bsdi__)
868 #endif /* __bsdi__ BSDI specific kernel interface routines */
869
870
871 /*****************************/
872 /* *** OpenBSD / NetBSD *** */
873 /*****************************/
874 #if defined(__NetBSD__) || defined(__OpenBSD__)
875
876 #define IPL_VIDEO IPL_BIO /* XXX */
877
bktr_intr(void * arg)878 static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
879
880 #define bktr_open bktropen
881 #define bktr_close bktrclose
882 #define bktr_read bktrread
883 #define bktr_write bktrwrite
884 #define bktr_ioctl bktrioctl
885 #define bktr_mmap bktrmmap
886
887 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
888 vm_offset_t, vm_offset_t);
889
890 #if defined(__OpenBSD__)
891 static int bktr_probe(struct device *, void *, void *);
892 #else
893 static int bktr_probe(struct device *, struct cfdata *, void *);
894 #endif
895 static void bktr_attach(struct device *, struct device *, void *);
896
897 struct cfattach bktr_ca = {
898 sizeof(struct bktr_softc), bktr_probe, bktr_attach
899 };
900
901 #if defined(__NetBSD__)
902 extern struct cfdriver bktr_cd;
903 #else
904 struct cfdriver bktr_cd = {
905 NULL, "bktr", DV_DULL
906 };
907 #endif
908
909 int
bktr_probe(parent,match,aux)910 bktr_probe(parent, match, aux)
911 struct device *parent;
912 #if defined(__OpenBSD__)
913 void *match;
914 #else
915 struct cfdata *match;
916 #endif
917 void *aux;
918 {
919 struct pci_attach_args *pa = aux;
920
921 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
922 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
923 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
924 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
925 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
926 return 1;
927
928 return 0;
929 }
930
931
932 /*
933 * the attach routine.
934 */
935 static void
bktr_attach(struct device * parent,struct device * self,void * aux)936 bktr_attach(struct device *parent, struct device *self, void *aux)
937 {
938 bktr_ptr_t bktr;
939 u_long latency;
940 u_long fun;
941 unsigned int rev;
942
943 #if defined(__OpenBSD__)
944 struct pci_attach_args *pa = aux;
945 pci_chipset_tag_t pc = pa->pa_pc;
946
947 pci_intr_handle_t ih;
948 const char *intrstr;
949 int retval;
950 int unit;
951
952 bktr = (bktr_ptr_t)self;
953 unit = bktr->bktr_dev.dv_unit;
954
955 bktr->pc = pa->pa_pc;
956 bktr->tag = pa->pa_tag;
957 bktr->dmat = pa->pa_dmat;
958
959 /*
960 * map memory
961 */
962 bktr->memt = pa->pa_memt;
963 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
964 &bktr->phys_base, &bktr->obmemsz, NULL);
965 if (!retval)
966 retval = bus_space_map(pa->pa_memt, bktr->phys_base,
967 bktr->obmemsz, 0, &bktr->memh);
968 if (retval) {
969 printf(": couldn't map memory\n");
970 return;
971 }
972
973
974 /*
975 * map interrupt
976 */
977 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
978 pa->pa_intrline, &ih)) {
979 printf(": couldn't map interrupt\n");
980 return;
981 }
982 intrstr = pci_intr_string(pa->pa_pc, ih);
983
984 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
985 bktr_intr, bktr, bktr->bktr_dev.dv_xname);
986 if (bktr->ih == NULL) {
987 printf(": couldn't establish interrupt");
988 if (intrstr != NULL)
989 printf(" at %s", intrstr);
990 printf("\n");
991 return;
992 }
993
994 if (intrstr != NULL)
995 printf(": %s\n", intrstr);
996 #endif /* __OpenBSD__ */
997
998 #if defined(__NetBSD__)
999 struct pci_attach_args *pa = aux;
1000 pci_intr_handle_t ih;
1001 const char *intrstr;
1002 int retval;
1003 int unit;
1004
1005 bktr = (bktr_ptr_t)self;
1006 unit = bktr->bktr_dev.dv_unit;
1007 bktr->dmat = pa->pa_dmat;
1008
1009 printf("\n");
1010
1011 /*
1012 * map memory
1013 */
1014 retval = pci_mapreg_map(pa, PCI_MAPREG_START,
1015 PCI_MAPREG_TYPE_MEM
1016 | PCI_MAPREG_MEM_TYPE_32BIT, 0,
1017 &bktr->memt, &bktr->memh, NULL,
1018 &bktr->obmemsz);
1019 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
1020 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
1021 if (retval) {
1022 printf("%s: couldn't map memory\n", bktr_name(bktr));
1023 return;
1024 }
1025
1026 /*
1027 * Disable the brooktree device
1028 */
1029 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
1030 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
1031
1032 /*
1033 * map interrupt
1034 */
1035 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
1036 pa->pa_intrline, &ih)) {
1037 printf("%s: couldn't map interrupt\n",
1038 bktr_name(bktr));
1039 return;
1040 }
1041 intrstr = pci_intr_string(pa->pa_pc, ih);
1042 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
1043 bktr_intr, bktr);
1044 if (bktr->ih == NULL) {
1045 printf("%s: couldn't establish interrupt",
1046 bktr_name(bktr));
1047 if (intrstr != NULL)
1048 printf(" at %s", intrstr);
1049 printf("\n");
1050 return;
1051 }
1052 if (intrstr != NULL)
1053 printf("%s: interrupting at %s\n", bktr_name(bktr),
1054 intrstr);
1055 #endif /* __NetBSD__ */
1056
1057 /*
1058 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
1059 * you have more than four, then 16 would probably be a better value.
1060 */
1061 #ifndef BROOKTREE_DEF_LATENCY_VALUE
1062 #define BROOKTREE_DEF_LATENCY_VALUE 10
1063 #endif
1064 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
1065 latency = (latency >> 8) & 0xff;
1066
1067 if (!latency) {
1068 if (bootverbose) {
1069 printf("%s: PCI bus latency was 0 changing to %d",
1070 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
1071 }
1072 latency = BROOKTREE_DEF_LATENCY_VALUE;
1073 pci_conf_write(pa->pa_pc, pa->pa_tag,
1074 PCI_LATENCY_TIMER, latency<<8);
1075 }
1076
1077
1078 /* Enabled Bus Master
1079 XXX: check if all old DMA is stopped first (e.g. after warm
1080 boot) */
1081 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
1082 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
1083 fun | PCI_COMMAND_MASTER_ENABLE);
1084
1085 /* read the pci id and determine the card type */
1086 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
1087 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
1088
1089 common_bktr_attach(bktr, unit, fun, rev);
1090 }
1091
1092
1093 /*
1094 * Special Memory Allocation
1095 */
1096 vm_offset_t
get_bktr_mem(bktr,dmapp,size)1097 get_bktr_mem(bktr, dmapp, size)
1098 bktr_ptr_t bktr;
1099 bus_dmamap_t *dmapp;
1100 unsigned int size;
1101 {
1102 bus_dma_tag_t dmat = bktr->dmat;
1103 bus_dma_segment_t seg;
1104 bus_size_t align;
1105 int rseg;
1106 caddr_t kva;
1107
1108 /*
1109 * Allocate a DMA area
1110 */
1111 align = 1 << 24;
1112 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1113 &rseg, BUS_DMA_NOWAIT)) {
1114 align = PAGE_SIZE;
1115 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1116 &rseg, BUS_DMA_NOWAIT)) {
1117 printf("%s: Unable to dmamem_alloc of %d bytes\n",
1118 bktr_name(bktr), size);
1119 return 0;
1120 }
1121 }
1122 if (bus_dmamem_map(dmat, &seg, rseg, size,
1123 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
1124 printf("%s: Unable to dmamem_map of %d bytes\n",
1125 bktr_name(bktr), size);
1126 bus_dmamem_free(dmat, &seg, rseg);
1127 return 0;
1128 }
1129 #ifdef __OpenBSD__
1130 bktr->dm_mapsize = size;
1131 #endif
1132 /*
1133 * Create and locd the DMA map for the DMA area
1134 */
1135 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
1136 printf("%s: Unable to dmamap_create of %d bytes\n",
1137 bktr_name(bktr), size);
1138 bus_dmamem_unmap(dmat, kva, size);
1139 bus_dmamem_free(dmat, &seg, rseg);
1140 return 0;
1141 }
1142 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
1143 printf("%s: Unable to dmamap_load of %d bytes\n",
1144 bktr_name(bktr), size);
1145 bus_dmamem_unmap(dmat, kva, size);
1146 bus_dmamem_free(dmat, &seg, rseg);
1147 bus_dmamap_destroy(dmat, *dmapp);
1148 return 0;
1149 }
1150 return (vm_offset_t)kva;
1151 }
1152
1153 void
free_bktr_mem(bktr,dmap,kva)1154 free_bktr_mem(bktr, dmap, kva)
1155 bktr_ptr_t bktr;
1156 bus_dmamap_t dmap;
1157 vm_offset_t kva;
1158 {
1159 bus_dma_tag_t dmat = bktr->dmat;
1160
1161 #ifdef __NetBSD__
1162 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
1163 #else
1164 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
1165 #endif
1166 bus_dmamem_free(dmat, dmap->dm_segs, 1);
1167 bus_dmamap_destroy(dmat, dmap);
1168 }
1169
1170
1171 /*---------------------------------------------------------
1172 **
1173 ** BrookTree 848 character device driver routines
1174 **
1175 **---------------------------------------------------------
1176 */
1177
1178
1179 #define VIDEO_DEV 0x00
1180 #define TUNER_DEV 0x01
1181 #define VBI_DEV 0x02
1182
1183 #define UNIT(x) (dev2unit((x) & 0x0f))
1184 #define FUNCTION(x) (dev2unit((x >> 4) & 0x0f))
1185
1186 /*
1187 *
1188 */
1189 int
bktr_open(dev_t dev,int flags,int fmt,struct thread * td)1190 bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
1191 {
1192 bktr_ptr_t bktr;
1193 int unit;
1194
1195 unit = UNIT(dev);
1196
1197 /* unit out of range */
1198 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
1199 return(ENXIO);
1200
1201 bktr = bktr_cd.cd_devs[unit];
1202
1203 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
1204 return(ENXIO);
1205
1206 switch (FUNCTION(dev)) {
1207 case VIDEO_DEV:
1208 return(video_open(bktr));
1209 case TUNER_DEV:
1210 return(tuner_open(bktr));
1211 case VBI_DEV:
1212 return(vbi_open(bktr));
1213 }
1214
1215 return(ENXIO);
1216 }
1217
1218
1219 /*
1220 *
1221 */
1222 int
bktr_close(dev_t dev,int flags,int fmt,struct thread * td)1223 bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
1224 {
1225 bktr_ptr_t bktr;
1226 int unit;
1227
1228 unit = UNIT(dev);
1229
1230 bktr = bktr_cd.cd_devs[unit];
1231
1232 switch (FUNCTION(dev)) {
1233 case VIDEO_DEV:
1234 return(video_close(bktr));
1235 case TUNER_DEV:
1236 return(tuner_close(bktr));
1237 case VBI_DEV:
1238 return(vbi_close(bktr));
1239 }
1240
1241 return(ENXIO);
1242 }
1243
1244 /*
1245 *
1246 */
1247 int
bktr_read(dev_t dev,struct uio * uio,int ioflag)1248 bktr_read(dev_t dev, struct uio *uio, int ioflag)
1249 {
1250 bktr_ptr_t bktr;
1251 int unit;
1252
1253 unit = UNIT(dev);
1254
1255 bktr = bktr_cd.cd_devs[unit];
1256
1257 switch (FUNCTION(dev)) {
1258 case VIDEO_DEV:
1259 return(video_read(bktr, unit, dev, uio));
1260 case VBI_DEV:
1261 return(vbi_read(bktr, uio, ioflag));
1262 }
1263
1264 return(ENXIO);
1265 }
1266
1267
1268 /*
1269 *
1270 */
1271 int
bktr_write(dev_t dev,struct uio * uio,int ioflag)1272 bktr_write(dev_t dev, struct uio *uio, int ioflag)
1273 {
1274 /* operation not supported */
1275 return(EOPNOTSUPP);
1276 }
1277
1278 /*
1279 *
1280 */
1281 int
bktr_ioctl(dev_t dev,ioctl_cmd_t cmd,caddr_t arg,int flag,struct thread * td)1282 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
1283 {
1284 bktr_ptr_t bktr;
1285 int unit;
1286
1287 unit = UNIT(dev);
1288
1289 bktr = bktr_cd.cd_devs[unit];
1290
1291 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
1292 return(ENOMEM);
1293
1294 switch (FUNCTION(dev)) {
1295 case VIDEO_DEV:
1296 return(video_ioctl(bktr, unit, cmd, arg, pr));
1297 case TUNER_DEV:
1298 return(tuner_ioctl(bktr, unit, cmd, arg, pr));
1299 }
1300
1301 return(ENXIO);
1302 }
1303
1304 /*
1305 *
1306 */
1307 paddr_t
bktr_mmap(dev_t dev,off_t offset,int nprot)1308 bktr_mmap(dev_t dev, off_t offset, int nprot)
1309 {
1310 int unit;
1311 bktr_ptr_t bktr;
1312
1313 unit = UNIT(dev);
1314
1315 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
1316 return(-1);
1317
1318 bktr = bktr_cd.cd_devs[unit];
1319
1320 if ((vaddr_t)offset < 0)
1321 return(-1);
1322
1323 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
1324 return(-1);
1325
1326 #ifdef __NetBSD__
1327 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
1328 (vaddr_t)offset, nprot, BUS_DMA_WAITOK));
1329 #else
1330 return(i386_btop(vtophys(bktr->bigbuf) + offset));
1331 #endif
1332 }
1333
1334 #endif /* __NetBSD__ || __OpenBSD__ */
1335