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/6.2/sys/dev/bktr/bktr_os.c 163455 2006-10-17 03:45:54Z jmg $");
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 #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 );
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
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
317 bktr_attach( device_t dev )
318 {
319 u_long latency;
320 u_long fun;
321 u_long val;
322 unsigned int rev;
323 unsigned int unit;
324 int error = 0;
325 #ifdef BROOKTREE_IRQ
326 u_long old_irq, new_irq;
327 #endif
328
329 struct bktr_softc *bktr = device_get_softc(dev);
330
331 unit = device_get_unit(dev);
332
333 /* build the device name for bktr_name() */
334 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
335
336 /*
337 * Enable bus mastering and Memory Mapped device
338 */
339 val = pci_read_config(dev, PCIR_COMMAND, 4);
340 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
341 pci_write_config(dev, PCIR_COMMAND, val, 4);
342
343 /*
344 * Map control/status registers.
345 */
346 bktr->mem_rid = PCIR_BAR(0);
347 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
348 &bktr->mem_rid, RF_ACTIVE);
349
350 if (!bktr->res_mem) {
351 device_printf(dev, "could not map memory\n");
352 error = ENXIO;
353 goto fail;
354 }
355 bktr->memt = rman_get_bustag(bktr->res_mem);
356 bktr->memh = rman_get_bushandle(bktr->res_mem);
357
358
359 /*
360 * Disable the brooktree device
361 */
362 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
363 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
364
365
366 #ifdef BROOKTREE_IRQ /* from the configuration file */
367 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
368 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
369 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
370 printf("bktr%d: attach: irq changed from %d to %d\n",
371 unit, (old_irq & 0xff), (new_irq & 0xff));
372 #endif
373
374 /*
375 * Allocate our interrupt.
376 */
377 bktr->irq_rid = 0;
378 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
379 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
380 if (bktr->res_irq == NULL) {
381 device_printf(dev, "could not map interrupt\n");
382 error = ENXIO;
383 goto fail;
384 }
385
386 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
387 bktr_intr, bktr, &bktr->res_ih);
388 if (error) {
389 device_printf(dev, "could not setup irq\n");
390 goto fail;
391
392 }
393
394
395 /* Update the Device Control Register */
396 /* on Bt878 and Bt879 cards */
397 fun = pci_read_config( dev, 0x40, 2);
398 fun = fun | 1; /* Enable writes to the sub-system vendor ID */
399
400 #if defined( BKTR_430_FX_MODE )
401 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
402 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
403 #endif
404
405 #if defined( BKTR_SIS_VIA_MODE )
406 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
407 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for
408 OPTi chipset motherboards too */
409 #endif
410 pci_write_config(dev, 0x40, fun, 2);
411
412 #if defined(BKTR_USE_FREEBSD_SMBUS)
413 if (bt848_i2c_attach(dev))
414 printf("bktr%d: i2c_attach: can't attach\n", unit);
415 #endif
416
417 /*
418 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
419 * you have more than four, then 16 would probably be a better value.
420 */
421 #ifndef BROOKTREE_DEF_LATENCY_VALUE
422 #define BROOKTREE_DEF_LATENCY_VALUE 10
423 #endif
424 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
425 latency = (latency >> 8) & 0xff;
426 if ( bootverbose ) {
427 if (latency)
428 printf("brooktree%d: PCI bus latency is", unit);
429 else
430 printf("brooktree%d: PCI bus latency was 0 changing to",
431 unit);
432 }
433 if ( !latency ) {
434 latency = BROOKTREE_DEF_LATENCY_VALUE;
435 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
436 }
437 if ( bootverbose ) {
438 printf(" %d.\n", (int) latency);
439 }
440
441 /* read the pci device id and revision id */
442 fun = pci_get_devid(dev);
443 rev = pci_get_revid(dev);
444
445 /* call the common attach code */
446 common_bktr_attach( bktr, unit, fun, rev );
447
448 /* make the device entries */
449 bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
450 0, 0, 0444, "bktr%d", unit);
451 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
452 0, 0, 0444, "tuner%d", unit);
453 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
454 0, 0, 0444, "vbi%d" , unit);
455
456
457 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
458 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
459 #if (__FreeBSD_version >=500000)
460 if (unit == 0) {
461 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
462 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
463 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
464 }
465 #endif
466
467 return 0;
468
469 fail:
470 if (bktr->res_irq)
471 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
472 if (bktr->res_mem)
473 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem);
474 return error;
475
476 }
477
478 /*
479 * the detach routine.
480 */
481 static int
482 bktr_detach( device_t dev )
483 {
484 struct bktr_softc *bktr = device_get_softc(dev);
485
486 #ifdef BKTR_NEW_MSP34XX_DRIVER
487 /* Disable the soundchip and kernel thread */
488 if (bktr->msp3400c_info != NULL)
489 msp_detach(bktr);
490 #endif
491
492 /* Disable the brooktree device */
493 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
494 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
495
496 #if defined(BKTR_USE_FREEBSD_SMBUS)
497 if (bt848_i2c_detach(dev))
498 printf("bktr%d: i2c_attach: can't attach\n",
499 device_get_unit(dev));
500 #endif
501 #ifdef USE_VBIMUTEX
502 mtx_destroy(&bktr->vbimutex);
503 #endif
504
505 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
506 /* The memory is retained by the bktr_mem module so we can unload and */
507 /* then reload the main bktr driver module */
508
509 /* Unregister the /dev/bktrN, tunerN and vbiN devices,
510 * the aliases for unit 0 are automatically destroyed */
511 destroy_dev(bktr->vbidev);
512 destroy_dev(bktr->tunerdev);
513 destroy_dev(bktr->bktrdev);
514
515 /*
516 * Deallocate resources.
517 */
518 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
519 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
520 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
521
522 return 0;
523 }
524
525 /*
526 * the shutdown routine.
527 */
528 static int
529 bktr_shutdown( device_t dev )
530 {
531 struct bktr_softc *bktr = device_get_softc(dev);
532
533 /* Disable the brooktree device */
534 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
535 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
536
537 return 0;
538 }
539
540
541 /*
542 * Special Memory Allocation
543 */
544 vm_offset_t
545 get_bktr_mem( int unit, unsigned size )
546 {
547 vm_offset_t addr = 0;
548
549 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
550 0xffffffff, 1<<24, 0);
551 if (addr == 0)
552 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
553 0xffffffff, PAGE_SIZE, 0);
554 if (addr == 0) {
555 printf("bktr%d: Unable to allocate %d bytes of memory.\n",
556 unit, size);
557 }
558
559 return( addr );
560 }
561
562
563 /*---------------------------------------------------------
564 **
565 ** BrookTree 848 character device driver routines
566 **
567 **---------------------------------------------------------
568 */
569
570 #define VIDEO_DEV 0x00
571 #define TUNER_DEV 0x01
572 #define VBI_DEV 0x02
573
574 #define UNIT(x) ((x) & 0x0f)
575 #define FUNCTION(x) (x >> 4)
576
577 /*
578 *
579 */
580 static int
581 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
582 {
583 bktr_ptr_t bktr;
584 int unit;
585 int result;
586
587 unit = UNIT( minor(dev) );
588
589 /* Get the device data */
590 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
591 if (bktr == NULL) {
592 /* the device is no longer valid/functioning */
593 return (ENXIO);
594 }
595
596 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
597 return( ENXIO );
598
599 /* Record that the device is now busy */
600 device_busy(devclass_get_device(bktr_devclass, unit));
601
602
603 if (bt848_card != -1) {
604 if ((bt848_card >> 8 == unit ) &&
605 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
606 if ( bktr->bt848_card != (bt848_card & 0xff) ) {
607 bktr->bt848_card = (bt848_card & 0xff);
608 probeCard(bktr, FALSE, unit);
609 }
610 }
611 }
612
613 if (bt848_tuner != -1) {
614 if ((bt848_tuner >> 8 == unit ) &&
615 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
616 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
617 bktr->bt848_tuner = (bt848_tuner & 0xff);
618 probeCard(bktr, FALSE, unit);
619 }
620 }
621 }
622
623 if (bt848_reverse_mute != -1) {
624 if ((bt848_reverse_mute >> 8) == unit ) {
625 bktr->reverse_mute = bt848_reverse_mute & 0xff;
626 }
627 }
628
629 if (bt848_slow_msp_audio != -1) {
630 if ((bt848_slow_msp_audio >> 8) == unit ) {
631 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
632 }
633 }
634
635 #ifdef BKTR_NEW_MSP34XX_DRIVER
636 if (bt848_stereo_once != 0) {
637 if ((bt848_stereo_once >> 8) == unit ) {
638 bktr->stereo_once = (bt848_stereo_once & 0xff);
639 }
640 }
641
642 if (bt848_amsound != -1) {
643 if ((bt848_amsound >> 8) == unit ) {
644 bktr->amsound = (bt848_amsound & 0xff);
645 }
646 }
647
648 if (bt848_dolby != -1) {
649 if ((bt848_dolby >> 8) == unit ) {
650 bktr->dolby = (bt848_dolby & 0xff);
651 }
652 }
653 #endif
654
655 switch ( FUNCTION( minor(dev) ) ) {
656 case VIDEO_DEV:
657 result = video_open( bktr );
658 break;
659 case TUNER_DEV:
660 result = tuner_open( bktr );
661 break;
662 case VBI_DEV:
663 result = vbi_open( bktr );
664 break;
665 default:
666 result = ENXIO;
667 break;
668 }
669
670 /* If there was an error opening the device, undo the busy status */
671 if (result != 0)
672 device_unbusy(devclass_get_device(bktr_devclass, unit));
673 return( result );
674 }
675
676
677 /*
678 *
679 */
680 static int
681 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
682 {
683 bktr_ptr_t bktr;
684 int unit;
685 int result;
686
687 unit = UNIT( minor(dev) );
688
689 /* Get the device data */
690 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
691 if (bktr == NULL) {
692 /* the device is no longer valid/functioning */
693 return (ENXIO);
694 }
695
696 switch ( FUNCTION( minor(dev) ) ) {
697 case VIDEO_DEV:
698 result = video_close( bktr );
699 break;
700 case TUNER_DEV:
701 result = tuner_close( bktr );
702 break;
703 case VBI_DEV:
704 result = vbi_close( bktr );
705 break;
706 default:
707 return (ENXIO);
708 break;
709 }
710
711 device_unbusy(devclass_get_device(bktr_devclass, unit));
712 return( result );
713 }
714
715
716 /*
717 *
718 */
719 static int
720 bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
721 {
722 bktr_ptr_t bktr;
723 int unit;
724
725 unit = UNIT(minor(dev));
726
727 /* Get the device data */
728 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
729 if (bktr == NULL) {
730 /* the device is no longer valid/functioning */
731 return (ENXIO);
732 }
733
734 switch ( FUNCTION( minor(dev) ) ) {
735 case VIDEO_DEV:
736 return( video_read( bktr, unit, dev, uio ) );
737 case VBI_DEV:
738 return( vbi_read( bktr, uio, ioflag ) );
739 }
740 return( ENXIO );
741 }
742
743
744 /*
745 *
746 */
747 static int
748 bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
749 {
750 return( EINVAL ); /* XXX or ENXIO ? */
751 }
752
753
754 /*
755 *
756 */
757 static int
758 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
759 {
760 bktr_ptr_t bktr;
761 int unit;
762
763 unit = UNIT(minor(dev));
764
765 /* Get the device data */
766 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
767 if (bktr == NULL) {
768 /* the device is no longer valid/functioning */
769 return (ENXIO);
770 }
771
772 #ifdef BKTR_GPIO_ACCESS
773 if (bktr->bigbuf == 0 && cmd != BT848_GPIO_GET_EN &&
774 cmd != BT848_GPIO_SET_EN && cmd != BT848_GPIO_GET_DATA &&
775 cmd != BT848_GPIO_SET_DATA) /* no frame buffer allocated (ioctl failed) */
776 return( ENOMEM );
777 #else
778 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
779 return( ENOMEM );
780 #endif
781
782 switch ( FUNCTION( minor(dev) ) ) {
783 case VIDEO_DEV:
784 return( video_ioctl( bktr, unit, cmd, arg, td ) );
785 case TUNER_DEV:
786 return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
787 }
788
789 return( ENXIO );
790 }
791
792
793 /*
794 *
795 */
796 static int
797 bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot )
798 {
799 int unit;
800 bktr_ptr_t bktr;
801
802 unit = UNIT(minor(dev));
803
804 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
805 return( -1 );
806
807 /* Get the device data */
808 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
809 if (bktr == NULL) {
810 /* the device is no longer valid/functioning */
811 return (ENXIO);
812 }
813
814 if (nprot & PROT_EXEC)
815 return( -1 );
816
817 if (offset < 0)
818 return( -1 );
819
820 if (offset >= bktr->alloc_pages * PAGE_SIZE)
821 return( -1 );
822
823 *paddr = vtophys(bktr->bigbuf) + offset;
824 return( 0 );
825 }
826
827 static int
828 bktr_poll( struct cdev *dev, int events, struct thread *td)
829 {
830 int unit;
831 bktr_ptr_t bktr;
832 int revents = 0;
833 DECLARE_INTR_MASK(s);
834
835 unit = UNIT(minor(dev));
836
837 /* Get the device data */
838 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
839 if (bktr == NULL) {
840 /* the device is no longer valid/functioning */
841 return (ENXIO);
842 }
843
844 LOCK_VBI(bktr);
845 DISABLE_INTR(s);
846
847 if (events & (POLLIN | POLLRDNORM)) {
848
849 switch ( FUNCTION( minor(dev) ) ) {
850 case VBI_DEV:
851 if(bktr->vbisize == 0)
852 selrecord(td, &bktr->vbi_select);
853 else
854 revents |= events & (POLLIN | POLLRDNORM);
855 break;
856 }
857 }
858
859 ENABLE_INTR(s);
860 UNLOCK_VBI(bktr);
861
862 return (revents);
863 }
864
865 /*****************/
866 /* *** BSDI *** */
867 /*****************/
868
869 #if defined(__bsdi__)
870 #endif /* __bsdi__ BSDI specific kernel interface routines */
871
872
873 /*****************************/
874 /* *** OpenBSD / NetBSD *** */
875 /*****************************/
876 #if defined(__NetBSD__) || defined(__OpenBSD__)
877
878 #define IPL_VIDEO IPL_BIO /* XXX */
879
880 static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
881
882 #define bktr_open bktropen
883 #define bktr_close bktrclose
884 #define bktr_read bktrread
885 #define bktr_write bktrwrite
886 #define bktr_ioctl bktrioctl
887 #define bktr_mmap bktrmmap
888
889 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
890 vm_offset_t, vm_offset_t);
891
892 #if defined(__OpenBSD__)
893 static int bktr_probe(struct device *, void *, void *);
894 #else
895 static int bktr_probe(struct device *, struct cfdata *, void *);
896 #endif
897 static void bktr_attach(struct device *, struct device *, void *);
898
899 struct cfattach bktr_ca = {
900 sizeof(struct bktr_softc), bktr_probe, bktr_attach
901 };
902
903 #if defined(__NetBSD__)
904 extern struct cfdriver bktr_cd;
905 #else
906 struct cfdriver bktr_cd = {
907 NULL, "bktr", DV_DULL
908 };
909 #endif
910
911 int
912 bktr_probe(parent, match, aux)
913 struct device *parent;
914 #if defined(__OpenBSD__)
915 void *match;
916 #else
917 struct cfdata *match;
918 #endif
919 void *aux;
920 {
921 struct pci_attach_args *pa = aux;
922
923 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
924 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
925 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
926 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
927 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
928 return 1;
929
930 return 0;
931 }
932
933
934 /*
935 * the attach routine.
936 */
937 static void
938 bktr_attach(struct device *parent, struct device *self, void *aux)
939 {
940 bktr_ptr_t bktr;
941 u_long latency;
942 u_long fun;
943 unsigned int rev;
944
945 #if defined(__OpenBSD__)
946 struct pci_attach_args *pa = aux;
947 pci_chipset_tag_t pc = pa->pa_pc;
948
949 pci_intr_handle_t ih;
950 const char *intrstr;
951 int retval;
952 int unit;
953
954 bktr = (bktr_ptr_t)self;
955 unit = bktr->bktr_dev.dv_unit;
956
957 bktr->pc = pa->pa_pc;
958 bktr->tag = pa->pa_tag;
959 bktr->dmat = pa->pa_dmat;
960
961 /*
962 * map memory
963 */
964 bktr->memt = pa->pa_memt;
965 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
966 &bktr->phys_base, &bktr->obmemsz, NULL);
967 if (!retval)
968 retval = bus_space_map(pa->pa_memt, bktr->phys_base,
969 bktr->obmemsz, 0, &bktr->memh);
970 if (retval) {
971 printf(": couldn't map memory\n");
972 return;
973 }
974
975
976 /*
977 * map interrupt
978 */
979 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
980 pa->pa_intrline, &ih)) {
981 printf(": couldn't map interrupt\n");
982 return;
983 }
984 intrstr = pci_intr_string(pa->pa_pc, ih);
985
986 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
987 bktr_intr, bktr, bktr->bktr_dev.dv_xname);
988 if (bktr->ih == NULL) {
989 printf(": couldn't establish interrupt");
990 if (intrstr != NULL)
991 printf(" at %s", intrstr);
992 printf("\n");
993 return;
994 }
995
996 if (intrstr != NULL)
997 printf(": %s\n", intrstr);
998 #endif /* __OpenBSD__ */
999
1000 #if defined(__NetBSD__)
1001 struct pci_attach_args *pa = aux;
1002 pci_intr_handle_t ih;
1003 const char *intrstr;
1004 int retval;
1005 int unit;
1006
1007 bktr = (bktr_ptr_t)self;
1008 unit = bktr->bktr_dev.dv_unit;
1009 bktr->dmat = pa->pa_dmat;
1010
1011 printf("\n");
1012
1013 /*
1014 * map memory
1015 */
1016 retval = pci_mapreg_map(pa, PCI_MAPREG_START,
1017 PCI_MAPREG_TYPE_MEM
1018 | PCI_MAPREG_MEM_TYPE_32BIT, 0,
1019 &bktr->memt, &bktr->memh, NULL,
1020 &bktr->obmemsz);
1021 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
1022 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
1023 if (retval) {
1024 printf("%s: couldn't map memory\n", bktr_name(bktr));
1025 return;
1026 }
1027
1028 /*
1029 * Disable the brooktree device
1030 */
1031 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
1032 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
1033
1034 /*
1035 * map interrupt
1036 */
1037 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
1038 pa->pa_intrline, &ih)) {
1039 printf("%s: couldn't map interrupt\n",
1040 bktr_name(bktr));
1041 return;
1042 }
1043 intrstr = pci_intr_string(pa->pa_pc, ih);
1044 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
1045 bktr_intr, bktr);
1046 if (bktr->ih == NULL) {
1047 printf("%s: couldn't establish interrupt",
1048 bktr_name(bktr));
1049 if (intrstr != NULL)
1050 printf(" at %s", intrstr);
1051 printf("\n");
1052 return;
1053 }
1054 if (intrstr != NULL)
1055 printf("%s: interrupting at %s\n", bktr_name(bktr),
1056 intrstr);
1057 #endif /* __NetBSD__ */
1058
1059 /*
1060 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
1061 * you have more than four, then 16 would probably be a better value.
1062 */
1063 #ifndef BROOKTREE_DEF_LATENCY_VALUE
1064 #define BROOKTREE_DEF_LATENCY_VALUE 10
1065 #endif
1066 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
1067 latency = (latency >> 8) & 0xff;
1068
1069 if (!latency) {
1070 if (bootverbose) {
1071 printf("%s: PCI bus latency was 0 changing to %d",
1072 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
1073 }
1074 latency = BROOKTREE_DEF_LATENCY_VALUE;
1075 pci_conf_write(pa->pa_pc, pa->pa_tag,
1076 PCI_LATENCY_TIMER, latency<<8);
1077 }
1078
1079
1080 /* Enabled Bus Master
1081 XXX: check if all old DMA is stopped first (e.g. after warm
1082 boot) */
1083 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
1084 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
1085 fun | PCI_COMMAND_MASTER_ENABLE);
1086
1087 /* read the pci id and determine the card type */
1088 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
1089 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
1090
1091 common_bktr_attach(bktr, unit, fun, rev);
1092 }
1093
1094
1095 /*
1096 * Special Memory Allocation
1097 */
1098 vm_offset_t
1099 get_bktr_mem(bktr, dmapp, size)
1100 bktr_ptr_t bktr;
1101 bus_dmamap_t *dmapp;
1102 unsigned int size;
1103 {
1104 bus_dma_tag_t dmat = bktr->dmat;
1105 bus_dma_segment_t seg;
1106 bus_size_t align;
1107 int rseg;
1108 caddr_t kva;
1109
1110 /*
1111 * Allocate a DMA area
1112 */
1113 align = 1 << 24;
1114 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1115 &rseg, BUS_DMA_NOWAIT)) {
1116 align = PAGE_SIZE;
1117 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1118 &rseg, BUS_DMA_NOWAIT)) {
1119 printf("%s: Unable to dmamem_alloc of %d bytes\n",
1120 bktr_name(bktr), size);
1121 return 0;
1122 }
1123 }
1124 if (bus_dmamem_map(dmat, &seg, rseg, size,
1125 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
1126 printf("%s: Unable to dmamem_map of %d bytes\n",
1127 bktr_name(bktr), size);
1128 bus_dmamem_free(dmat, &seg, rseg);
1129 return 0;
1130 }
1131 #ifdef __OpenBSD__
1132 bktr->dm_mapsize = size;
1133 #endif
1134 /*
1135 * Create and locd the DMA map for the DMA area
1136 */
1137 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
1138 printf("%s: Unable to dmamap_create of %d bytes\n",
1139 bktr_name(bktr), size);
1140 bus_dmamem_unmap(dmat, kva, size);
1141 bus_dmamem_free(dmat, &seg, rseg);
1142 return 0;
1143 }
1144 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
1145 printf("%s: Unable to dmamap_load of %d bytes\n",
1146 bktr_name(bktr), size);
1147 bus_dmamem_unmap(dmat, kva, size);
1148 bus_dmamem_free(dmat, &seg, rseg);
1149 bus_dmamap_destroy(dmat, *dmapp);
1150 return 0;
1151 }
1152 return (vm_offset_t)kva;
1153 }
1154
1155 void
1156 free_bktr_mem(bktr, dmap, kva)
1157 bktr_ptr_t bktr;
1158 bus_dmamap_t dmap;
1159 vm_offset_t kva;
1160 {
1161 bus_dma_tag_t dmat = bktr->dmat;
1162
1163 #ifdef __NetBSD__
1164 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
1165 #else
1166 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
1167 #endif
1168 bus_dmamem_free(dmat, dmap->dm_segs, 1);
1169 bus_dmamap_destroy(dmat, dmap);
1170 }
1171
1172
1173 /*---------------------------------------------------------
1174 **
1175 ** BrookTree 848 character device driver routines
1176 **
1177 **---------------------------------------------------------
1178 */
1179
1180
1181 #define VIDEO_DEV 0x00
1182 #define TUNER_DEV 0x01
1183 #define VBI_DEV 0x02
1184
1185 #define UNIT(x) (minor((x) & 0x0f))
1186 #define FUNCTION(x) (minor((x >> 4) & 0x0f))
1187
1188 /*
1189 *
1190 */
1191 int
1192 bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
1193 {
1194 bktr_ptr_t bktr;
1195 int unit;
1196
1197 unit = UNIT(dev);
1198
1199 /* unit out of range */
1200 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
1201 return(ENXIO);
1202
1203 bktr = bktr_cd.cd_devs[unit];
1204
1205 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
1206 return(ENXIO);
1207
1208 switch (FUNCTION(dev)) {
1209 case VIDEO_DEV:
1210 return(video_open(bktr));
1211 case TUNER_DEV:
1212 return(tuner_open(bktr));
1213 case VBI_DEV:
1214 return(vbi_open(bktr));
1215 }
1216
1217 return(ENXIO);
1218 }
1219
1220
1221 /*
1222 *
1223 */
1224 int
1225 bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
1226 {
1227 bktr_ptr_t bktr;
1228 int unit;
1229
1230 unit = UNIT(dev);
1231
1232 bktr = bktr_cd.cd_devs[unit];
1233
1234 switch (FUNCTION(dev)) {
1235 case VIDEO_DEV:
1236 return(video_close(bktr));
1237 case TUNER_DEV:
1238 return(tuner_close(bktr));
1239 case VBI_DEV:
1240 return(vbi_close(bktr));
1241 }
1242
1243 return(ENXIO);
1244 }
1245
1246 /*
1247 *
1248 */
1249 int
1250 bktr_read(dev_t dev, struct uio *uio, int ioflag)
1251 {
1252 bktr_ptr_t bktr;
1253 int unit;
1254
1255 unit = UNIT(dev);
1256
1257 bktr = bktr_cd.cd_devs[unit];
1258
1259 switch (FUNCTION(dev)) {
1260 case VIDEO_DEV:
1261 return(video_read(bktr, unit, dev, uio));
1262 case VBI_DEV:
1263 return(vbi_read(bktr, uio, ioflag));
1264 }
1265
1266 return(ENXIO);
1267 }
1268
1269
1270 /*
1271 *
1272 */
1273 int
1274 bktr_write(dev_t dev, struct uio *uio, int ioflag)
1275 {
1276 /* operation not supported */
1277 return(EOPNOTSUPP);
1278 }
1279
1280 /*
1281 *
1282 */
1283 int
1284 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
1285 {
1286 bktr_ptr_t bktr;
1287 int unit;
1288
1289 unit = UNIT(dev);
1290
1291 bktr = bktr_cd.cd_devs[unit];
1292
1293 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
1294 return(ENOMEM);
1295
1296 switch (FUNCTION(dev)) {
1297 case VIDEO_DEV:
1298 return(video_ioctl(bktr, unit, cmd, arg, pr));
1299 case TUNER_DEV:
1300 return(tuner_ioctl(bktr, unit, cmd, arg, pr));
1301 }
1302
1303 return(ENXIO);
1304 }
1305
1306 /*
1307 *
1308 */
1309 paddr_t
1310 bktr_mmap(dev_t dev, off_t offset, int nprot)
1311 {
1312 int unit;
1313 bktr_ptr_t bktr;
1314
1315 unit = UNIT(dev);
1316
1317 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
1318 return(-1);
1319
1320 bktr = bktr_cd.cd_devs[unit];
1321
1322 if ((vaddr_t)offset < 0)
1323 return(-1);
1324
1325 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
1326 return(-1);
1327
1328 #ifdef __NetBSD__
1329 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
1330 (vaddr_t)offset, nprot, BUS_DMA_WAITOK));
1331 #else
1332 return(i386_btop(vtophys(bktr->bigbuf) + offset));
1333 #endif
1334 }
1335
1336 #endif /* __NetBSD__ || __OpenBSD__ */
Cache object: acc3c42aba743676a30e1023e92c68bc
|