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