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: releng/6.1/sys/dev/bktr/bktr_os.c 146734 2005-05-29 04:42:30Z nyan $");
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 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 #ifndef __NetBSD__
153 #include <vm/vm_kern.h>
154 #include <vm/pmap.h>
155 #include <vm/vm_extern.h>
156 #endif
157
158 #include <sys/device.h>
159 #include <dev/pci/pcivar.h>
160 #include <dev/pci/pcireg.h>
161 #include <dev/pci/pcidevs.h>
162
163 #define BKTR_DEBUG
164 #ifdef BKTR_DEBUG
165 int bktr_debug = 0;
166 #define DPR(x) (bktr_debug ? printf x : 0)
167 #else
168 #define DPR(x)
169 #endif
170 #endif /* __NetBSD__ || __OpenBSD__ */
171
172
173 #ifdef __NetBSD__
174 #include <dev/ic/bt8xx.h> /* NetBSD location for .h files */
175 #include <dev/pci/bktr/bktr_reg.h>
176 #include <dev/pci/bktr/bktr_tuner.h>
177 #include <dev/pci/bktr/bktr_card.h>
178 #include <dev/pci/bktr/bktr_audio.h>
179 #include <dev/pci/bktr/bktr_core.h>
180 #include <dev/pci/bktr/bktr_os.h>
181 #else /* Traditional location for .h files */
182 #include <dev/bktr/ioctl_meteor.h>
183 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
184 #include <dev/bktr/bktr_reg.h>
185 #include <dev/bktr/bktr_tuner.h>
186 #include <dev/bktr/bktr_card.h>
187 #include <dev/bktr/bktr_audio.h>
188 #include <dev/bktr/bktr_core.h>
189 #include <dev/bktr/bktr_os.h>
190
191 #if defined(BKTR_USE_FREEBSD_SMBUS)
192 #include <dev/bktr/bktr_i2c.h>
193
194 #include "iicbb_if.h"
195 #include "smbus_if.h"
196 #endif
197 #endif
198
199
200 /****************************/
201 /* *** FreeBSD 4.x code *** */
202 /****************************/
203
204 static int bktr_probe( device_t dev );
205 static int bktr_attach( device_t dev );
206 static int bktr_detach( device_t dev );
207 static int bktr_shutdown( device_t dev );
208 static void bktr_intr(void *arg) { common_bktr_intr(arg); }
209
210 static device_method_t bktr_methods[] = {
211 /* Device interface */
212 DEVMETHOD(device_probe, bktr_probe),
213 DEVMETHOD(device_attach, bktr_attach),
214 DEVMETHOD(device_detach, bktr_detach),
215 DEVMETHOD(device_shutdown, bktr_shutdown),
216
217 #if defined(BKTR_USE_FREEBSD_SMBUS)
218 /* iicbb interface */
219 DEVMETHOD(iicbb_callback, bti2c_iic_callback),
220 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda),
221 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl),
222 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda),
223 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl),
224 DEVMETHOD(iicbb_reset, bti2c_iic_reset),
225
226 /* smbus interface */
227 DEVMETHOD(smbus_callback, bti2c_smb_callback),
228 DEVMETHOD(smbus_writeb, bti2c_smb_writeb),
229 DEVMETHOD(smbus_writew, bti2c_smb_writew),
230 DEVMETHOD(smbus_readb, bti2c_smb_readb),
231 #endif
232
233 { 0, 0 }
234 };
235
236 static driver_t bktr_driver = {
237 "bktr",
238 bktr_methods,
239 sizeof(struct bktr_softc),
240 };
241
242 static devclass_t bktr_devclass;
243
244 static d_open_t bktr_open;
245 static d_close_t bktr_close;
246 static d_read_t bktr_read;
247 static d_write_t bktr_write;
248 static d_ioctl_t bktr_ioctl;
249 static d_mmap_t bktr_mmap;
250 static d_poll_t bktr_poll;
251
252 static struct cdevsw bktr_cdevsw = {
253 .d_version = D_VERSION,
254 .d_flags = D_NEEDGIANT,
255 .d_open = bktr_open,
256 .d_close = bktr_close,
257 .d_read = bktr_read,
258 .d_write = bktr_write,
259 .d_ioctl = bktr_ioctl,
260 .d_poll = bktr_poll,
261 .d_mmap = bktr_mmap,
262 .d_name = "bktr",
263 };
264
265 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0);
266 MODULE_DEPEND(bktr, bktr_mem, 1,1,1);
267 MODULE_VERSION(bktr, 1);
268
269
270 /*
271 * the boot time probe routine.
272 */
273 static int
274 bktr_probe( device_t dev )
275 {
276 unsigned int type = pci_get_devid(dev);
277 unsigned int rev = pci_get_revid(dev);
278
279 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE)
280 {
281 switch (PCI_PRODUCT(type)) {
282 case PCI_PRODUCT_BROOKTREE_BT848:
283 if (rev == 0x12)
284 device_set_desc(dev, "BrookTree 848A");
285 else
286 device_set_desc(dev, "BrookTree 848");
287 return BUS_PROBE_DEFAULT;
288 case PCI_PRODUCT_BROOKTREE_BT849:
289 device_set_desc(dev, "BrookTree 849A");
290 return BUS_PROBE_DEFAULT;
291 case PCI_PRODUCT_BROOKTREE_BT878:
292 device_set_desc(dev, "BrookTree 878");
293 return BUS_PROBE_DEFAULT;
294 case PCI_PRODUCT_BROOKTREE_BT879:
295 device_set_desc(dev, "BrookTree 879");
296 return BUS_PROBE_DEFAULT;
297 }
298 };
299
300 return ENXIO;
301 }
302
303
304 /*
305 * the attach routine.
306 */
307 static int
308 bktr_attach( device_t dev )
309 {
310 u_long latency;
311 u_long fun;
312 u_long val;
313 unsigned int rev;
314 unsigned int unit;
315 int error = 0;
316 #ifdef BROOKTREE_IRQ
317 u_long old_irq, new_irq;
318 #endif
319
320 struct bktr_softc *bktr = device_get_softc(dev);
321
322 unit = device_get_unit(dev);
323
324 /* build the device name for bktr_name() */
325 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
326
327 /*
328 * Enable bus mastering and Memory Mapped device
329 */
330 val = pci_read_config(dev, PCIR_COMMAND, 4);
331 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
332 pci_write_config(dev, PCIR_COMMAND, val, 4);
333
334 /*
335 * Map control/status registers.
336 */
337 bktr->mem_rid = PCIR_BAR(0);
338 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
339 &bktr->mem_rid, RF_ACTIVE);
340
341 if (!bktr->res_mem) {
342 device_printf(dev, "could not map memory\n");
343 error = ENXIO;
344 goto fail;
345 }
346 bktr->memt = rman_get_bustag(bktr->res_mem);
347 bktr->memh = rman_get_bushandle(bktr->res_mem);
348
349
350 /*
351 * Disable the brooktree device
352 */
353 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
354 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
355
356
357 #ifdef BROOKTREE_IRQ /* from the configuration file */
358 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
359 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
360 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
361 printf("bktr%d: attach: irq changed from %d to %d\n",
362 unit, (old_irq & 0xff), (new_irq & 0xff));
363 #endif
364
365 /*
366 * Allocate our interrupt.
367 */
368 bktr->irq_rid = 0;
369 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
370 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
371 if (bktr->res_irq == NULL) {
372 device_printf(dev, "could not map interrupt\n");
373 error = ENXIO;
374 goto fail;
375 }
376
377 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
378 bktr_intr, bktr, &bktr->res_ih);
379 if (error) {
380 device_printf(dev, "could not setup irq\n");
381 goto fail;
382
383 }
384
385
386 /* Update the Device Control Register */
387 /* on Bt878 and Bt879 cards */
388 fun = pci_read_config( dev, 0x40, 2);
389 fun = fun | 1; /* Enable writes to the sub-system vendor ID */
390
391 #if defined( BKTR_430_FX_MODE )
392 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
393 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
394 #endif
395
396 #if defined( BKTR_SIS_VIA_MODE )
397 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
398 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for
399 OPTi chipset motherboards too */
400 #endif
401 pci_write_config(dev, 0x40, fun, 2);
402
403 #if defined(BKTR_USE_FREEBSD_SMBUS)
404 if (bt848_i2c_attach(dev))
405 printf("bktr%d: i2c_attach: can't attach\n", unit);
406 #endif
407
408 /*
409 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
410 * you have more than four, then 16 would probably be a better value.
411 */
412 #ifndef BROOKTREE_DEF_LATENCY_VALUE
413 #define BROOKTREE_DEF_LATENCY_VALUE 10
414 #endif
415 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
416 latency = (latency >> 8) & 0xff;
417 if ( bootverbose ) {
418 if (latency)
419 printf("brooktree%d: PCI bus latency is", unit);
420 else
421 printf("brooktree%d: PCI bus latency was 0 changing to",
422 unit);
423 }
424 if ( !latency ) {
425 latency = BROOKTREE_DEF_LATENCY_VALUE;
426 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
427 }
428 if ( bootverbose ) {
429 printf(" %d.\n", (int) latency);
430 }
431
432 /* read the pci device id and revision id */
433 fun = pci_get_devid(dev);
434 rev = pci_get_revid(dev);
435
436 /* call the common attach code */
437 common_bktr_attach( bktr, unit, fun, rev );
438
439 /* make the device entries */
440 bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
441 0, 0, 0444, "bktr%d", unit);
442 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
443 0, 0, 0444, "tuner%d", unit);
444 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
445 0, 0, 0444, "vbi%d" , unit);
446
447
448 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
449 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
450 #if (__FreeBSD_version >=500000)
451 if (unit == 0) {
452 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
453 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
454 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
455 }
456 #endif
457
458 return 0;
459
460 fail:
461 if (bktr->res_irq)
462 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
463 if (bktr->res_mem)
464 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem);
465 return error;
466
467 }
468
469 /*
470 * the detach routine.
471 */
472 static int
473 bktr_detach( device_t dev )
474 {
475 struct bktr_softc *bktr = device_get_softc(dev);
476
477 #ifdef BKTR_NEW_MSP34XX_DRIVER
478 /* Disable the soundchip and kernel thread */
479 if (bktr->msp3400c_info != NULL)
480 msp_detach(bktr);
481 #endif
482
483 /* Disable the brooktree device */
484 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
485 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
486
487 #if defined(BKTR_USE_FREEBSD_SMBUS)
488 if (bt848_i2c_detach(dev))
489 printf("bktr%d: i2c_attach: can't attach\n",
490 device_get_unit(dev));
491 #endif
492 #ifdef USE_VBIMUTEX
493 mtx_destroy(&bktr->vbimutex);
494 #endif
495
496 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
497 /* The memory is retained by the bktr_mem module so we can unload and */
498 /* then reload the main bktr driver module */
499
500 /* Unregister the /dev/bktrN, tunerN and vbiN devices,
501 * the aliases for unit 0 are automatically destroyed */
502 destroy_dev(bktr->vbidev);
503 destroy_dev(bktr->tunerdev);
504 destroy_dev(bktr->bktrdev);
505
506 /*
507 * Deallocate resources.
508 */
509 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
510 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
511 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
512
513 return 0;
514 }
515
516 /*
517 * the shutdown routine.
518 */
519 static int
520 bktr_shutdown( device_t dev )
521 {
522 struct bktr_softc *bktr = device_get_softc(dev);
523
524 /* Disable the brooktree device */
525 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
526 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
527
528 return 0;
529 }
530
531
532 /*
533 * Special Memory Allocation
534 */
535 vm_offset_t
536 get_bktr_mem( int unit, unsigned size )
537 {
538 vm_offset_t addr = 0;
539
540 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
541 0xffffffff, 1<<24, 0);
542 if (addr == 0)
543 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
544 0xffffffff, PAGE_SIZE, 0);
545 if (addr == 0) {
546 printf("bktr%d: Unable to allocate %d bytes of memory.\n",
547 unit, size);
548 }
549
550 return( addr );
551 }
552
553
554 /*---------------------------------------------------------
555 **
556 ** BrookTree 848 character device driver routines
557 **
558 **---------------------------------------------------------
559 */
560
561 #define VIDEO_DEV 0x00
562 #define TUNER_DEV 0x01
563 #define VBI_DEV 0x02
564
565 #define UNIT(x) ((x) & 0x0f)
566 #define FUNCTION(x) (x >> 4)
567
568 /*
569 *
570 */
571 static int
572 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
573 {
574 bktr_ptr_t bktr;
575 int unit;
576 int result;
577
578 unit = UNIT( minor(dev) );
579
580 /* Get the device data */
581 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
582 if (bktr == NULL) {
583 /* the device is no longer valid/functioning */
584 return (ENXIO);
585 }
586
587 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
588 return( ENXIO );
589
590 /* Record that the device is now busy */
591 device_busy(devclass_get_device(bktr_devclass, unit));
592
593
594 if (bt848_card != -1) {
595 if ((bt848_card >> 8 == unit ) &&
596 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
597 if ( bktr->bt848_card != (bt848_card & 0xff) ) {
598 bktr->bt848_card = (bt848_card & 0xff);
599 probeCard(bktr, FALSE, unit);
600 }
601 }
602 }
603
604 if (bt848_tuner != -1) {
605 if ((bt848_tuner >> 8 == unit ) &&
606 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
607 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
608 bktr->bt848_tuner = (bt848_tuner & 0xff);
609 probeCard(bktr, FALSE, unit);
610 }
611 }
612 }
613
614 if (bt848_reverse_mute != -1) {
615 if ((bt848_reverse_mute >> 8) == unit ) {
616 bktr->reverse_mute = bt848_reverse_mute & 0xff;
617 }
618 }
619
620 if (bt848_slow_msp_audio != -1) {
621 if ((bt848_slow_msp_audio >> 8) == unit ) {
622 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
623 }
624 }
625
626 #ifdef BKTR_NEW_MSP34XX_DRIVER
627 if (bt848_stereo_once != 0) {
628 if ((bt848_stereo_once >> 8) == unit ) {
629 bktr->stereo_once = (bt848_stereo_once & 0xff);
630 }
631 }
632
633 if (bt848_amsound != -1) {
634 if ((bt848_amsound >> 8) == unit ) {
635 bktr->amsound = (bt848_amsound & 0xff);
636 }
637 }
638
639 if (bt848_dolby != -1) {
640 if ((bt848_dolby >> 8) == unit ) {
641 bktr->dolby = (bt848_dolby & 0xff);
642 }
643 }
644 #endif
645
646 switch ( FUNCTION( minor(dev) ) ) {
647 case VIDEO_DEV:
648 result = video_open( bktr );
649 break;
650 case TUNER_DEV:
651 result = tuner_open( bktr );
652 break;
653 case VBI_DEV:
654 result = vbi_open( bktr );
655 break;
656 default:
657 result = ENXIO;
658 break;
659 }
660
661 /* If there was an error opening the device, undo the busy status */
662 if (result != 0)
663 device_unbusy(devclass_get_device(bktr_devclass, unit));
664 return( result );
665 }
666
667
668 /*
669 *
670 */
671 static int
672 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
673 {
674 bktr_ptr_t bktr;
675 int unit;
676 int result;
677
678 unit = UNIT( minor(dev) );
679
680 /* Get the device data */
681 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
682 if (bktr == NULL) {
683 /* the device is no longer valid/functioning */
684 return (ENXIO);
685 }
686
687 switch ( FUNCTION( minor(dev) ) ) {
688 case VIDEO_DEV:
689 result = video_close( bktr );
690 break;
691 case TUNER_DEV:
692 result = tuner_close( bktr );
693 break;
694 case VBI_DEV:
695 result = vbi_close( bktr );
696 break;
697 default:
698 return (ENXIO);
699 break;
700 }
701
702 device_unbusy(devclass_get_device(bktr_devclass, unit));
703 return( result );
704 }
705
706
707 /*
708 *
709 */
710 static int
711 bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
712 {
713 bktr_ptr_t bktr;
714 int unit;
715
716 unit = UNIT(minor(dev));
717
718 /* Get the device data */
719 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
720 if (bktr == NULL) {
721 /* the device is no longer valid/functioning */
722 return (ENXIO);
723 }
724
725 switch ( FUNCTION( minor(dev) ) ) {
726 case VIDEO_DEV:
727 return( video_read( bktr, unit, dev, uio ) );
728 case VBI_DEV:
729 return( vbi_read( bktr, uio, ioflag ) );
730 }
731 return( ENXIO );
732 }
733
734
735 /*
736 *
737 */
738 static int
739 bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
740 {
741 return( EINVAL ); /* XXX or ENXIO ? */
742 }
743
744
745 /*
746 *
747 */
748 static int
749 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
750 {
751 bktr_ptr_t bktr;
752 int unit;
753
754 unit = UNIT(minor(dev));
755
756 /* Get the device data */
757 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
758 if (bktr == NULL) {
759 /* the device is no longer valid/functioning */
760 return (ENXIO);
761 }
762
763 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
764 return( ENOMEM );
765
766 switch ( FUNCTION( minor(dev) ) ) {
767 case VIDEO_DEV:
768 return( video_ioctl( bktr, unit, cmd, arg, td ) );
769 case TUNER_DEV:
770 return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
771 }
772
773 return( ENXIO );
774 }
775
776
777 /*
778 *
779 */
780 static int
781 bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot )
782 {
783 int unit;
784 bktr_ptr_t bktr;
785
786 unit = UNIT(minor(dev));
787
788 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
789 return( -1 );
790
791 /* Get the device data */
792 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
793 if (bktr == NULL) {
794 /* the device is no longer valid/functioning */
795 return (ENXIO);
796 }
797
798 if (nprot & PROT_EXEC)
799 return( -1 );
800
801 if (offset < 0)
802 return( -1 );
803
804 if (offset >= bktr->alloc_pages * PAGE_SIZE)
805 return( -1 );
806
807 *paddr = vtophys(bktr->bigbuf) + offset;
808 return( 0 );
809 }
810
811 static int
812 bktr_poll( struct cdev *dev, int events, struct thread *td)
813 {
814 int unit;
815 bktr_ptr_t bktr;
816 int revents = 0;
817 DECLARE_INTR_MASK(s);
818
819 unit = UNIT(minor(dev));
820
821 /* Get the device data */
822 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
823 if (bktr == NULL) {
824 /* the device is no longer valid/functioning */
825 return (ENXIO);
826 }
827
828 LOCK_VBI(bktr);
829 DISABLE_INTR(s);
830
831 if (events & (POLLIN | POLLRDNORM)) {
832
833 switch ( FUNCTION( minor(dev) ) ) {
834 case VBI_DEV:
835 if(bktr->vbisize == 0)
836 selrecord(td, &bktr->vbi_select);
837 else
838 revents |= events & (POLLIN | POLLRDNORM);
839 break;
840 }
841 }
842
843 ENABLE_INTR(s);
844 UNLOCK_VBI(bktr);
845
846 return (revents);
847 }
848
849 /*****************/
850 /* *** BSDI *** */
851 /*****************/
852
853 #if defined(__bsdi__)
854 #endif /* __bsdi__ BSDI specific kernel interface routines */
855
856
857 /*****************************/
858 /* *** OpenBSD / NetBSD *** */
859 /*****************************/
860 #if defined(__NetBSD__) || defined(__OpenBSD__)
861
862 #define IPL_VIDEO IPL_BIO /* XXX */
863
864 static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
865
866 #define bktr_open bktropen
867 #define bktr_close bktrclose
868 #define bktr_read bktrread
869 #define bktr_write bktrwrite
870 #define bktr_ioctl bktrioctl
871 #define bktr_mmap bktrmmap
872
873 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
874 vm_offset_t, vm_offset_t);
875
876 #if defined(__OpenBSD__)
877 static int bktr_probe(struct device *, void *, void *);
878 #else
879 static int bktr_probe(struct device *, struct cfdata *, void *);
880 #endif
881 static void bktr_attach(struct device *, struct device *, void *);
882
883 struct cfattach bktr_ca = {
884 sizeof(struct bktr_softc), bktr_probe, bktr_attach
885 };
886
887 #if defined(__NetBSD__)
888 extern struct cfdriver bktr_cd;
889 #else
890 struct cfdriver bktr_cd = {
891 NULL, "bktr", DV_DULL
892 };
893 #endif
894
895 int
896 bktr_probe(parent, match, aux)
897 struct device *parent;
898 #if defined(__OpenBSD__)
899 void *match;
900 #else
901 struct cfdata *match;
902 #endif
903 void *aux;
904 {
905 struct pci_attach_args *pa = aux;
906
907 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
908 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
909 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
910 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
911 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
912 return 1;
913
914 return 0;
915 }
916
917
918 /*
919 * the attach routine.
920 */
921 static void
922 bktr_attach(struct device *parent, struct device *self, void *aux)
923 {
924 bktr_ptr_t bktr;
925 u_long latency;
926 u_long fun;
927 unsigned int rev;
928
929 #if defined(__OpenBSD__)
930 struct pci_attach_args *pa = aux;
931 pci_chipset_tag_t pc = pa->pa_pc;
932
933 pci_intr_handle_t ih;
934 const char *intrstr;
935 int retval;
936 int unit;
937
938 bktr = (bktr_ptr_t)self;
939 unit = bktr->bktr_dev.dv_unit;
940
941 bktr->pc = pa->pa_pc;
942 bktr->tag = pa->pa_tag;
943 bktr->dmat = pa->pa_dmat;
944
945 /*
946 * map memory
947 */
948 bktr->memt = pa->pa_memt;
949 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
950 &bktr->phys_base, &bktr->obmemsz, NULL);
951 if (!retval)
952 retval = bus_space_map(pa->pa_memt, bktr->phys_base,
953 bktr->obmemsz, 0, &bktr->memh);
954 if (retval) {
955 printf(": couldn't map memory\n");
956 return;
957 }
958
959
960 /*
961 * map interrupt
962 */
963 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
964 pa->pa_intrline, &ih)) {
965 printf(": couldn't map interrupt\n");
966 return;
967 }
968 intrstr = pci_intr_string(pa->pa_pc, ih);
969
970 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
971 bktr_intr, bktr, bktr->bktr_dev.dv_xname);
972 if (bktr->ih == NULL) {
973 printf(": couldn't establish interrupt");
974 if (intrstr != NULL)
975 printf(" at %s", intrstr);
976 printf("\n");
977 return;
978 }
979
980 if (intrstr != NULL)
981 printf(": %s\n", intrstr);
982 #endif /* __OpenBSD__ */
983
984 #if defined(__NetBSD__)
985 struct pci_attach_args *pa = aux;
986 pci_intr_handle_t ih;
987 const char *intrstr;
988 int retval;
989 int unit;
990
991 bktr = (bktr_ptr_t)self;
992 unit = bktr->bktr_dev.dv_unit;
993 bktr->dmat = pa->pa_dmat;
994
995 printf("\n");
996
997 /*
998 * map memory
999 */
1000 retval = pci_mapreg_map(pa, PCI_MAPREG_START,
1001 PCI_MAPREG_TYPE_MEM
1002 | PCI_MAPREG_MEM_TYPE_32BIT, 0,
1003 &bktr->memt, &bktr->memh, NULL,
1004 &bktr->obmemsz);
1005 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
1006 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
1007 if (retval) {
1008 printf("%s: couldn't map memory\n", bktr_name(bktr));
1009 return;
1010 }
1011
1012 /*
1013 * Disable the brooktree device
1014 */
1015 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
1016 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
1017
1018 /*
1019 * map interrupt
1020 */
1021 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
1022 pa->pa_intrline, &ih)) {
1023 printf("%s: couldn't map interrupt\n",
1024 bktr_name(bktr));
1025 return;
1026 }
1027 intrstr = pci_intr_string(pa->pa_pc, ih);
1028 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
1029 bktr_intr, bktr);
1030 if (bktr->ih == NULL) {
1031 printf("%s: couldn't establish interrupt",
1032 bktr_name(bktr));
1033 if (intrstr != NULL)
1034 printf(" at %s", intrstr);
1035 printf("\n");
1036 return;
1037 }
1038 if (intrstr != NULL)
1039 printf("%s: interrupting at %s\n", bktr_name(bktr),
1040 intrstr);
1041 #endif /* __NetBSD__ */
1042
1043 /*
1044 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
1045 * you have more than four, then 16 would probably be a better value.
1046 */
1047 #ifndef BROOKTREE_DEF_LATENCY_VALUE
1048 #define BROOKTREE_DEF_LATENCY_VALUE 10
1049 #endif
1050 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
1051 latency = (latency >> 8) & 0xff;
1052
1053 if (!latency) {
1054 if (bootverbose) {
1055 printf("%s: PCI bus latency was 0 changing to %d",
1056 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
1057 }
1058 latency = BROOKTREE_DEF_LATENCY_VALUE;
1059 pci_conf_write(pa->pa_pc, pa->pa_tag,
1060 PCI_LATENCY_TIMER, latency<<8);
1061 }
1062
1063
1064 /* Enabled Bus Master
1065 XXX: check if all old DMA is stopped first (e.g. after warm
1066 boot) */
1067 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
1068 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
1069 fun | PCI_COMMAND_MASTER_ENABLE);
1070
1071 /* read the pci id and determine the card type */
1072 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
1073 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
1074
1075 common_bktr_attach(bktr, unit, fun, rev);
1076 }
1077
1078
1079 /*
1080 * Special Memory Allocation
1081 */
1082 vm_offset_t
1083 get_bktr_mem(bktr, dmapp, size)
1084 bktr_ptr_t bktr;
1085 bus_dmamap_t *dmapp;
1086 unsigned int size;
1087 {
1088 bus_dma_tag_t dmat = bktr->dmat;
1089 bus_dma_segment_t seg;
1090 bus_size_t align;
1091 int rseg;
1092 caddr_t kva;
1093
1094 /*
1095 * Allocate a DMA area
1096 */
1097 align = 1 << 24;
1098 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1099 &rseg, BUS_DMA_NOWAIT)) {
1100 align = PAGE_SIZE;
1101 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1102 &rseg, BUS_DMA_NOWAIT)) {
1103 printf("%s: Unable to dmamem_alloc of %d bytes\n",
1104 bktr_name(bktr), size);
1105 return 0;
1106 }
1107 }
1108 if (bus_dmamem_map(dmat, &seg, rseg, size,
1109 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
1110 printf("%s: Unable to dmamem_map of %d bytes\n",
1111 bktr_name(bktr), size);
1112 bus_dmamem_free(dmat, &seg, rseg);
1113 return 0;
1114 }
1115 #ifdef __OpenBSD__
1116 bktr->dm_mapsize = size;
1117 #endif
1118 /*
1119 * Create and locd the DMA map for the DMA area
1120 */
1121 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
1122 printf("%s: Unable to dmamap_create of %d bytes\n",
1123 bktr_name(bktr), size);
1124 bus_dmamem_unmap(dmat, kva, size);
1125 bus_dmamem_free(dmat, &seg, rseg);
1126 return 0;
1127 }
1128 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
1129 printf("%s: Unable to dmamap_load of %d bytes\n",
1130 bktr_name(bktr), size);
1131 bus_dmamem_unmap(dmat, kva, size);
1132 bus_dmamem_free(dmat, &seg, rseg);
1133 bus_dmamap_destroy(dmat, *dmapp);
1134 return 0;
1135 }
1136 return (vm_offset_t)kva;
1137 }
1138
1139 void
1140 free_bktr_mem(bktr, dmap, kva)
1141 bktr_ptr_t bktr;
1142 bus_dmamap_t dmap;
1143 vm_offset_t kva;
1144 {
1145 bus_dma_tag_t dmat = bktr->dmat;
1146
1147 #ifdef __NetBSD__
1148 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
1149 #else
1150 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
1151 #endif
1152 bus_dmamem_free(dmat, dmap->dm_segs, 1);
1153 bus_dmamap_destroy(dmat, dmap);
1154 }
1155
1156
1157 /*---------------------------------------------------------
1158 **
1159 ** BrookTree 848 character device driver routines
1160 **
1161 **---------------------------------------------------------
1162 */
1163
1164
1165 #define VIDEO_DEV 0x00
1166 #define TUNER_DEV 0x01
1167 #define VBI_DEV 0x02
1168
1169 #define UNIT(x) (minor((x) & 0x0f))
1170 #define FUNCTION(x) (minor((x >> 4) & 0x0f))
1171
1172 /*
1173 *
1174 */
1175 int
1176 bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
1177 {
1178 bktr_ptr_t bktr;
1179 int unit;
1180
1181 unit = UNIT(dev);
1182
1183 /* unit out of range */
1184 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
1185 return(ENXIO);
1186
1187 bktr = bktr_cd.cd_devs[unit];
1188
1189 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
1190 return(ENXIO);
1191
1192 switch (FUNCTION(dev)) {
1193 case VIDEO_DEV:
1194 return(video_open(bktr));
1195 case TUNER_DEV:
1196 return(tuner_open(bktr));
1197 case VBI_DEV:
1198 return(vbi_open(bktr));
1199 }
1200
1201 return(ENXIO);
1202 }
1203
1204
1205 /*
1206 *
1207 */
1208 int
1209 bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
1210 {
1211 bktr_ptr_t bktr;
1212 int unit;
1213
1214 unit = UNIT(dev);
1215
1216 bktr = bktr_cd.cd_devs[unit];
1217
1218 switch (FUNCTION(dev)) {
1219 case VIDEO_DEV:
1220 return(video_close(bktr));
1221 case TUNER_DEV:
1222 return(tuner_close(bktr));
1223 case VBI_DEV:
1224 return(vbi_close(bktr));
1225 }
1226
1227 return(ENXIO);
1228 }
1229
1230 /*
1231 *
1232 */
1233 int
1234 bktr_read(dev_t dev, struct uio *uio, int ioflag)
1235 {
1236 bktr_ptr_t bktr;
1237 int unit;
1238
1239 unit = UNIT(dev);
1240
1241 bktr = bktr_cd.cd_devs[unit];
1242
1243 switch (FUNCTION(dev)) {
1244 case VIDEO_DEV:
1245 return(video_read(bktr, unit, dev, uio));
1246 case VBI_DEV:
1247 return(vbi_read(bktr, uio, ioflag));
1248 }
1249
1250 return(ENXIO);
1251 }
1252
1253
1254 /*
1255 *
1256 */
1257 int
1258 bktr_write(dev_t dev, struct uio *uio, int ioflag)
1259 {
1260 /* operation not supported */
1261 return(EOPNOTSUPP);
1262 }
1263
1264 /*
1265 *
1266 */
1267 int
1268 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
1269 {
1270 bktr_ptr_t bktr;
1271 int unit;
1272
1273 unit = UNIT(dev);
1274
1275 bktr = bktr_cd.cd_devs[unit];
1276
1277 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
1278 return(ENOMEM);
1279
1280 switch (FUNCTION(dev)) {
1281 case VIDEO_DEV:
1282 return(video_ioctl(bktr, unit, cmd, arg, pr));
1283 case TUNER_DEV:
1284 return(tuner_ioctl(bktr, unit, cmd, arg, pr));
1285 }
1286
1287 return(ENXIO);
1288 }
1289
1290 /*
1291 *
1292 */
1293 paddr_t
1294 bktr_mmap(dev_t dev, off_t offset, int nprot)
1295 {
1296 int unit;
1297 bktr_ptr_t bktr;
1298
1299 unit = UNIT(dev);
1300
1301 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
1302 return(-1);
1303
1304 bktr = bktr_cd.cd_devs[unit];
1305
1306 if ((vaddr_t)offset < 0)
1307 return(-1);
1308
1309 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
1310 return(-1);
1311
1312 #ifdef __NetBSD__
1313 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
1314 (vaddr_t)offset, nprot, BUS_DMA_WAITOK));
1315 #else
1316 return(i386_btop(vtophys(bktr->bigbuf) + offset));
1317 #endif
1318 }
1319
1320 #endif /* __NetBSD__ || __OpenBSD__ */
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