2 * SPDX-License-Identifier: BSD-4-Clause
4 * 1. Redistributions of source code must retain the
5 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Amancio Hasty and
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
40 * This is part of the Driver for Video Capture Cards (Frame grabbers)
41 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
43 * Copyright Roger Hardiman and Amancio Hasty.
45 * bktr_os : This has all the Operating System dependent code,
46 * probe/attach and open/close/ioctl/read/mmap
51 #include "opt_bktr.h" /* include any kernel config options */
53 #define FIFO_RISC_DISABLED 0
54 #define ALL_INTS_DISABLED 0
62 #include <sys/param.h>
63 #include <sys/systm.h>
66 #include <sys/kernel.h>
67 #include <sys/module.h>
68 #include <sys/signalvar.h>
69 #include <sys/malloc.h>
72 #if __FreeBSD_version >= 500014
73 #include <sys/selinfo.h>
75 #include <sys/select.h>
79 #include <vm/vm_kern.h>
81 #include <vm/vm_extern.h>
83 #include <sys/bus.h> /* used by smbus and newbus */
85 #include <machine/bus.h> /* used by bus space and newbus */
88 #include <sys/rman.h> /* used by newbus */
89 #include <machine/resource.h> /* used by newbus */
91 #if (__FreeBSD_version < 500000)
92 #include <machine/clock.h> /* for DELAY */
93 #include <pci/pcivar.h>
94 #include <pci/pcireg.h>
96 #include <dev/pci/pcivar.h>
97 #include <dev/pci/pcireg.h>
100 #include <sys/sysctl.h>
102 int bt848_tuner = -1;
103 int bt848_reverse_mute = -1;
104 int bt848_format = -1;
105 int bt848_slow_msp_audio = -1;
106 #ifdef BKTR_NEW_MSP34XX_DRIVER
107 int bt848_stereo_once = 0; /* no continuous stereo monitoring */
108 int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
109 the autoscan seems work well only with FM... */
113 static SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt");
114 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, "");
115 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, "");
116 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, "");
117 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, "");
118 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, "");
119 #ifdef BKTR_NEW_MSP34XX_DRIVER
120 SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, "");
121 SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, "");
122 SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, "");
125 #endif /* end freebsd section */
133 #endif /* __bsdi__ */
136 /**************************/
137 /* *** OpenBSD/NetBSD *** */
138 /**************************/
139 #if defined(__NetBSD__) || defined(__OpenBSD__)
141 #include <sys/param.h>
142 #include <sys/systm.h>
143 #include <sys/conf.h>
145 #include <sys/kernel.h>
146 #include <sys/signalvar.h>
147 #include <sys/mman.h>
148 #include <sys/poll.h>
149 #include <sys/select.h>
150 #include <sys/vnode.h>
154 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
157 #include <vm/vm_kern.h>
159 #include <vm/vm_extern.h>
162 #include <sys/device.h>
163 #include <dev/pci/pcivar.h>
164 #include <dev/pci/pcireg.h>
165 #include <dev/pci/pcidevs.h>
170 #define DPR(x) (bktr_debug ? printf x : 0)
174 #endif /* __NetBSD__ || __OpenBSD__ */
178 #include <dev/ic/bt8xx.h> /* NetBSD location for .h files */
179 #include <dev/pci/bktr/bktr_reg.h>
180 #include <dev/pci/bktr/bktr_tuner.h>
181 #include <dev/pci/bktr/bktr_card.h>
182 #include <dev/pci/bktr/bktr_audio.h>
183 #include <dev/pci/bktr/bktr_core.h>
184 #include <dev/pci/bktr/bktr_os.h>
185 #else /* Traditional location for .h files */
186 #include <dev/bktr/ioctl_meteor.h>
187 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
188 #include <dev/bktr/bktr_reg.h>
189 #include <dev/bktr/bktr_tuner.h>
190 #include <dev/bktr/bktr_card.h>
191 #include <dev/bktr/bktr_audio.h>
192 #include <dev/bktr/bktr_core.h>
193 #include <dev/bktr/bktr_os.h>
195 #if defined(BKTR_USE_FREEBSD_SMBUS)
196 #include <dev/bktr/bktr_i2c.h>
198 #include "iicbb_if.h"
199 #include "smbus_if.h"
204 /****************************/
205 /* *** FreeBSD 4.x code *** */
206 /****************************/
208 static int bktr_probe( device_t dev );
209 static int bktr_attach( device_t dev );
210 static int bktr_detach( device_t dev );
211 static int bktr_shutdown( device_t dev );
212 static void bktr_intr(void *arg) { common_bktr_intr(arg); }
214 static device_method_t bktr_methods[] = {
215 /* Device interface */
216 DEVMETHOD(device_probe, bktr_probe),
217 DEVMETHOD(device_attach, bktr_attach),
218 DEVMETHOD(device_detach, bktr_detach),
219 DEVMETHOD(device_shutdown, bktr_shutdown),
221 #if defined(BKTR_USE_FREEBSD_SMBUS)
222 /* iicbb interface */
223 DEVMETHOD(iicbb_callback, bti2c_iic_callback),
224 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda),
225 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl),
226 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda),
227 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl),
228 DEVMETHOD(iicbb_reset, bti2c_iic_reset),
230 /* smbus interface */
231 DEVMETHOD(smbus_callback, bti2c_smb_callback),
232 DEVMETHOD(smbus_writeb, bti2c_smb_writeb),
233 DEVMETHOD(smbus_writew, bti2c_smb_writew),
234 DEVMETHOD(smbus_readb, bti2c_smb_readb),
240 static driver_t bktr_driver = {
243 sizeof(struct bktr_softc),
246 static devclass_t bktr_devclass;
248 static d_open_t bktr_open;
249 static d_close_t bktr_close;
250 static d_read_t bktr_read;
251 static d_write_t bktr_write;
252 static d_ioctl_t bktr_ioctl;
253 static d_mmap_t bktr_mmap;
254 static d_poll_t bktr_poll;
256 static struct cdevsw bktr_cdevsw = {
257 .d_version = D_VERSION,
258 .d_flags = D_NEEDGIANT,
260 .d_close = bktr_close,
262 .d_write = bktr_write,
263 .d_ioctl = bktr_ioctl,
269 #ifdef BKTR_USE_FREEBSD_SMBUS
270 #include <dev/iicbus/iiconf.h>
271 #include <dev/smbus/smbconf.h>
272 MODULE_DEPEND(bktr, iicbb, IICBB_MINVER, IICBB_MODVER, IICBB_MAXVER);
273 MODULE_DEPEND(bktr, iicbus, IICBUS_MINVER, IICBUS_MODVER, IICBUS_MAXVER);
274 MODULE_DEPEND(bktr, smbus, SMBUS_MINVER, SMBUS_MODVER, SMBUS_MAXVER);
276 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0);
277 MODULE_DEPEND(bktr, bktr_mem, 1,1,1);
278 MODULE_VERSION(bktr, 1);
282 * the boot time probe routine.
285 bktr_probe( device_t dev )
287 unsigned int type = pci_get_devid(dev);
288 unsigned int rev = pci_get_revid(dev);
290 if (BKTR_PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE)
292 switch (BKTR_PCI_PRODUCT(type)) {
293 case PCI_PRODUCT_BROOKTREE_BT848:
295 device_set_desc(dev, "BrookTree 848A");
297 device_set_desc(dev, "BrookTree 848");
298 return BUS_PROBE_DEFAULT;
299 case PCI_PRODUCT_BROOKTREE_BT849:
300 device_set_desc(dev, "BrookTree 849A");
301 return BUS_PROBE_DEFAULT;
302 case PCI_PRODUCT_BROOKTREE_BT878:
303 device_set_desc(dev, "BrookTree 878");
304 return BUS_PROBE_DEFAULT;
305 case PCI_PRODUCT_BROOKTREE_BT879:
306 device_set_desc(dev, "BrookTree 879");
307 return BUS_PROBE_DEFAULT;
316 * the attach routine.
319 bktr_attach( device_t dev )
327 u_long old_irq, new_irq;
330 struct bktr_softc *bktr = device_get_softc(dev);
332 unit = device_get_unit(dev);
334 /* build the device name for bktr_name() */
335 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
338 * Enable bus mastering and Memory Mapped device
340 pci_enable_busmaster(dev);
343 * Map control/status registers.
345 bktr->mem_rid = PCIR_BAR(0);
346 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
347 &bktr->mem_rid, RF_ACTIVE);
349 if (!bktr->res_mem) {
350 device_printf(dev, "could not map memory\n");
354 bktr->memt = rman_get_bustag(bktr->res_mem);
355 bktr->memh = rman_get_bushandle(bktr->res_mem);
359 * Disable the brooktree device
361 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
362 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
365 #ifdef BROOKTREE_IRQ /* from the configuration file */
366 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
367 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
368 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
369 printf("bktr%d: attach: irq changed from %d to %d\n",
370 unit, (old_irq & 0xff), (new_irq & 0xff));
374 * Allocate our interrupt.
377 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
378 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
379 if (bktr->res_irq == NULL) {
380 device_printf(dev, "could not map interrupt\n");
385 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
386 NULL, bktr_intr, bktr, &bktr->res_ih);
388 device_printf(dev, "could not setup irq\n");
394 /* Update the Device Control Register */
395 /* on Bt878 and Bt879 cards */
396 fun = pci_read_config( dev, 0x40, 2);
397 fun = fun | 1; /* Enable writes to the sub-system vendor ID */
399 #if defined( BKTR_430_FX_MODE )
400 if (bootverbose) printf("Using 430 FX chipset compatibility mode\n");
401 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
404 #if defined( BKTR_SIS_VIA_MODE )
405 if (bootverbose) printf("Using SiS/VIA chipset compatibility mode\n");
406 fun = fun | 4; /* Enable SiS/VIA compatibility mode (useful for
407 OPTi chipset motherboards too */
409 pci_write_config(dev, 0x40, fun, 2);
411 #if defined(BKTR_USE_FREEBSD_SMBUS)
412 if (bt848_i2c_attach(dev))
413 printf("bktr%d: i2c_attach: can't attach\n", unit);
417 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
418 * you have more than four, then 16 would probably be a better value.
420 #ifndef BROOKTREE_DEF_LATENCY_VALUE
421 #define BROOKTREE_DEF_LATENCY_VALUE 10
423 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
424 latency = (latency >> 8) & 0xff;
427 printf("brooktree%d: PCI bus latency is", unit);
429 printf("brooktree%d: PCI bus latency was 0 changing to",
433 latency = BROOKTREE_DEF_LATENCY_VALUE;
434 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
437 printf(" %d.\n", (int) latency);
440 /* read the pci device id and revision id */
441 fun = pci_get_devid(dev);
442 rev = pci_get_revid(dev);
444 /* call the common attach code */
445 common_bktr_attach( bktr, unit, fun, rev );
447 /* make the device entries */
448 bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
449 0, 0, 0444, "bktr%d", unit);
450 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
451 0, 0, 0444, "tuner%d", unit);
452 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
453 0, 0, 0444, "vbi%d" , unit);
456 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
457 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
458 #if (__FreeBSD_version >=500000)
460 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
461 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
462 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
470 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
472 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
478 * the detach routine.
481 bktr_detach( device_t dev )
483 struct bktr_softc *bktr = device_get_softc(dev);
485 #ifdef BKTR_NEW_MSP34XX_DRIVER
486 /* Disable the soundchip and kernel thread */
487 if (bktr->msp3400c_info != NULL)
491 /* Disable the brooktree device */
492 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
493 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
495 #if defined(BKTR_USE_FREEBSD_SMBUS)
496 if (bt848_i2c_detach(dev))
497 printf("bktr%d: i2c_attach: can't attach\n",
498 device_get_unit(dev));
501 mtx_destroy(&bktr->vbimutex);
504 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
505 /* The memory is retained by the bktr_mem module so we can unload and */
506 /* then reload the main bktr driver module */
508 /* Unregister the /dev/bktrN, tunerN and vbiN devices,
509 * the aliases for unit 0 are automatically destroyed */
510 destroy_dev(bktr->vbidev);
511 destroy_dev(bktr->tunerdev);
512 destroy_dev(bktr->bktrdev);
515 * Deallocate resources.
517 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
518 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
519 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
525 * the shutdown routine.
528 bktr_shutdown( device_t dev )
530 struct bktr_softc *bktr = device_get_softc(dev);
532 /* Disable the brooktree device */
533 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
534 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
541 * Special Memory Allocation
544 get_bktr_mem( int unit, unsigned size )
546 vm_offset_t addr = 0;
548 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
549 0xffffffff, 1<<24, 0);
551 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
552 0xffffffff, PAGE_SIZE, 0);
554 printf("bktr%d: Unable to allocate %d bytes of memory.\n",
562 /*---------------------------------------------------------
564 ** BrookTree 848 character device driver routines
566 **---------------------------------------------------------
569 #define VIDEO_DEV 0x00
570 #define TUNER_DEV 0x01
573 #define UNIT(x) ((x) & 0x0f)
574 #define FUNCTION(x) (x >> 4)
580 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
586 unit = UNIT( dev2unit(dev) );
588 /* Get the device data */
589 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
591 /* the device is no longer valid/functioning */
595 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
598 /* Record that the device is now busy */
599 device_busy(devclass_get_device(bktr_devclass, unit));
602 if (bt848_card != -1) {
603 if ((bt848_card >> 8 == unit ) &&
604 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
605 if ( bktr->bt848_card != (bt848_card & 0xff) ) {
606 bktr->bt848_card = (bt848_card & 0xff);
607 probeCard(bktr, FALSE, unit);
612 if (bt848_tuner != -1) {
613 if ((bt848_tuner >> 8 == unit ) &&
614 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
615 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
616 bktr->bt848_tuner = (bt848_tuner & 0xff);
617 probeCard(bktr, FALSE, unit);
622 if (bt848_reverse_mute != -1) {
623 if ((bt848_reverse_mute >> 8) == unit ) {
624 bktr->reverse_mute = bt848_reverse_mute & 0xff;
628 if (bt848_slow_msp_audio != -1) {
629 if ((bt848_slow_msp_audio >> 8) == unit ) {
630 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
634 #ifdef BKTR_NEW_MSP34XX_DRIVER
635 if (bt848_stereo_once != 0) {
636 if ((bt848_stereo_once >> 8) == unit ) {
637 bktr->stereo_once = (bt848_stereo_once & 0xff);
641 if (bt848_amsound != -1) {
642 if ((bt848_amsound >> 8) == unit ) {
643 bktr->amsound = (bt848_amsound & 0xff);
647 if (bt848_dolby != -1) {
648 if ((bt848_dolby >> 8) == unit ) {
649 bktr->dolby = (bt848_dolby & 0xff);
654 switch ( FUNCTION( dev2unit(dev) ) ) {
656 result = video_open( bktr );
659 result = tuner_open( bktr );
662 result = vbi_open( bktr );
669 /* If there was an error opening the device, undo the busy status */
671 device_unbusy(devclass_get_device(bktr_devclass, unit));
680 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
686 unit = UNIT( dev2unit(dev) );
688 /* Get the device data */
689 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
691 /* the device is no longer valid/functioning */
695 switch ( FUNCTION( dev2unit(dev) ) ) {
697 result = video_close( bktr );
700 result = tuner_close( bktr );
703 result = vbi_close( bktr );
710 device_unbusy(devclass_get_device(bktr_devclass, unit));
719 bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
724 unit = UNIT(dev2unit(dev));
726 /* Get the device data */
727 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
729 /* the device is no longer valid/functioning */
733 switch ( FUNCTION( dev2unit(dev) ) ) {
735 return( video_read( bktr, unit, dev, uio ) );
737 return( vbi_read( bktr, uio, ioflag ) );
747 bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
749 return( EINVAL ); /* XXX or ENXIO ? */
757 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
762 unit = UNIT(dev2unit(dev));
764 /* Get the device data */
765 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
767 /* the device is no longer valid/functioning */
771 #ifdef BKTR_GPIO_ACCESS
772 if (bktr->bigbuf == 0 && cmd != BT848_GPIO_GET_EN &&
773 cmd != BT848_GPIO_SET_EN && cmd != BT848_GPIO_GET_DATA &&
774 cmd != BT848_GPIO_SET_DATA) /* no frame buffer allocated (ioctl failed) */
777 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
781 switch ( FUNCTION( dev2unit(dev) ) ) {
783 return( video_ioctl( bktr, unit, cmd, arg, td ) );
785 return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
796 bktr_mmap( struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
797 int nprot, vm_memattr_t *memattr )
802 unit = UNIT(dev2unit(dev));
804 if (FUNCTION(dev2unit(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
807 /* Get the device data */
808 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
810 /* the device is no longer valid/functioning */
814 if (nprot & PROT_EXEC)
820 if (offset >= bktr->alloc_pages * PAGE_SIZE)
823 *paddr = vtophys(bktr->bigbuf) + offset;
828 bktr_poll( struct cdev *dev, int events, struct thread *td)
833 DECLARE_INTR_MASK(s);
835 unit = UNIT(dev2unit(dev));
837 /* Get the device data */
838 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
840 /* the device is no longer valid/functioning */
847 if (events & (POLLIN | POLLRDNORM)) {
849 switch ( FUNCTION( dev2unit(dev) ) ) {
851 if(bktr->vbisize == 0)
852 selrecord(td, &bktr->vbi_select);
854 revents |= events & (POLLIN | POLLRDNORM);
869 #if defined(__bsdi__)
870 #endif /* __bsdi__ BSDI specific kernel interface routines */
873 /*****************************/
874 /* *** OpenBSD / NetBSD *** */
875 /*****************************/
876 #if defined(__NetBSD__) || defined(__OpenBSD__)
878 #define IPL_VIDEO IPL_BIO /* XXX */
880 static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
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
889 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
890 vm_offset_t, vm_offset_t);
892 #if defined(__OpenBSD__)
893 static int bktr_probe(struct device *, void *, void *);
894 static void bktr_attach(struct device *, struct device *, void *);
896 static int bktr_probe(device_t, struct cfdata *, void *);
897 static void bktr_attach(device_t, device_t, void *);
900 struct cfattach bktr_ca = {
901 sizeof(struct bktr_softc), bktr_probe, bktr_attach
904 #if defined(__NetBSD__)
905 extern struct cfdriver bktr_cd;
907 struct cfdriver bktr_cd = {
908 NULL, "bktr", DV_DULL
913 bktr_probe(parent, match, aux)
914 #if defined(__OpenBSD__)
915 struct device *parent;
919 struct cfdata *match;
923 struct pci_attach_args *pa = aux;
925 if (BKTR_PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
926 (BKTR_PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
927 BKTR_PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
928 BKTR_PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
929 BKTR_PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
937 * the attach routine.
940 bktr_attach(parent, self, aux)
941 #if defined(__OpenBSD__)
942 struct device *parent;
955 #if defined(__OpenBSD__)
956 struct pci_attach_args *pa = aux;
957 pci_chipset_tag_t pc = pa->pa_pc;
959 pci_intr_handle_t ih;
964 bktr = (bktr_ptr_t)self;
965 unit = bktr->bktr_dev.dv_unit;
967 bktr->pc = pa->pa_pc;
968 bktr->tag = pa->pa_tag;
969 bktr->dmat = pa->pa_dmat;
974 bktr->memt = pa->pa_memt;
975 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
976 &bktr->phys_base, &bktr->obmemsz, NULL);
978 retval = bus_space_map(pa->pa_memt, bktr->phys_base,
979 bktr->obmemsz, 0, &bktr->memh);
981 printf(": couldn't map memory\n");
989 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
990 pa->pa_intrline, &ih)) {
991 printf(": couldn't map interrupt\n");
994 intrstr = pci_intr_string(pa->pa_pc, ih);
996 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
997 bktr_intr, bktr, bktr->bktr_dev.dv_xname);
998 if (bktr->ih == NULL) {
999 printf(": couldn't establish interrupt");
1000 if (intrstr != NULL)
1001 printf(" at %s", intrstr);
1006 if (intrstr != NULL)
1007 printf(": %s\n", intrstr);
1008 #endif /* __OpenBSD__ */
1010 #if defined(__NetBSD__)
1011 struct pci_attach_args *pa = aux;
1012 pci_intr_handle_t ih;
1013 const char *intrstr;
1017 bktr = (bktr_ptr_t)self;
1018 unit = bktr->bktr_dev.dv_unit;
1019 bktr->dmat = pa->pa_dmat;
1026 retval = pci_mapreg_map(pa, PCI_MAPREG_START,
1028 | PCI_MAPREG_MEM_TYPE_32BIT, 0,
1029 &bktr->memt, &bktr->memh, NULL,
1031 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
1032 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
1034 printf("%s: couldn't map memory\n", bktr_name(bktr));
1039 * Disable the brooktree device
1041 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
1042 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
1047 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
1048 pa->pa_intrline, &ih)) {
1049 printf("%s: couldn't map interrupt\n",
1053 intrstr = pci_intr_string(pa->pa_pc, ih);
1054 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
1056 if (bktr->ih == NULL) {
1057 printf("%s: couldn't establish interrupt",
1059 if (intrstr != NULL)
1060 printf(" at %s", intrstr);
1064 if (intrstr != NULL)
1065 printf("%s: interrupting at %s\n", bktr_name(bktr),
1067 #endif /* __NetBSD__ */
1070 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
1071 * you have more than four, then 16 would probably be a better value.
1073 #ifndef BROOKTREE_DEF_LATENCY_VALUE
1074 #define BROOKTREE_DEF_LATENCY_VALUE 10
1076 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
1077 latency = (latency >> 8) & 0xff;
1081 printf("%s: PCI bus latency was 0 changing to %d",
1082 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
1084 latency = BROOKTREE_DEF_LATENCY_VALUE;
1085 pci_conf_write(pa->pa_pc, pa->pa_tag,
1086 PCI_LATENCY_TIMER, latency<<8);
1090 /* Enabled Bus Master
1091 XXX: check if all old DMA is stopped first (e.g. after warm
1093 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
1094 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
1095 fun | PCI_COMMAND_MASTER_ENABLE);
1097 /* read the pci id and determine the card type */
1098 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
1099 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
1101 common_bktr_attach(bktr, unit, fun, rev);
1106 * Special Memory Allocation
1109 get_bktr_mem(bktr, dmapp, size)
1111 bus_dmamap_t *dmapp;
1114 bus_dma_tag_t dmat = bktr->dmat;
1115 bus_dma_segment_t seg;
1121 * Allocate a DMA area
1124 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1125 &rseg, BUS_DMA_NOWAIT)) {
1127 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1128 &rseg, BUS_DMA_NOWAIT)) {
1129 printf("%s: Unable to dmamem_alloc of %d bytes\n",
1130 bktr_name(bktr), size);
1134 if (bus_dmamem_map(dmat, &seg, rseg, size,
1135 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
1136 printf("%s: Unable to dmamem_map of %d bytes\n",
1137 bktr_name(bktr), size);
1138 bus_dmamem_free(dmat, &seg, rseg);
1142 bktr->dm_mapsize = size;
1145 * Create and locd the DMA map for the DMA area
1147 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
1148 printf("%s: Unable to dmamap_create of %d bytes\n",
1149 bktr_name(bktr), size);
1150 bus_dmamem_unmap(dmat, kva, size);
1151 bus_dmamem_free(dmat, &seg, rseg);
1154 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
1155 printf("%s: Unable to dmamap_load of %d bytes\n",
1156 bktr_name(bktr), size);
1157 bus_dmamem_unmap(dmat, kva, size);
1158 bus_dmamem_free(dmat, &seg, rseg);
1159 bus_dmamap_destroy(dmat, *dmapp);
1162 return (vm_offset_t)kva;
1166 free_bktr_mem(bktr, dmap, kva)
1171 bus_dma_tag_t dmat = bktr->dmat;
1174 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
1176 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
1178 bus_dmamem_free(dmat, dmap->dm_segs, 1);
1179 bus_dmamap_destroy(dmat, dmap);
1183 /*---------------------------------------------------------
1185 ** BrookTree 848 character device driver routines
1187 **---------------------------------------------------------
1191 #define VIDEO_DEV 0x00
1192 #define TUNER_DEV 0x01
1193 #define VBI_DEV 0x02
1195 #define UNIT(x) (dev2unit((x) & 0x0f))
1196 #define FUNCTION(x) (dev2unit((x >> 4) & 0x0f))
1202 bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
1209 /* unit out of range */
1210 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
1213 bktr = bktr_cd.cd_devs[unit];
1215 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
1218 switch (FUNCTION(dev)) {
1220 return(video_open(bktr));
1222 return(tuner_open(bktr));
1224 return(vbi_open(bktr));
1235 bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
1242 bktr = bktr_cd.cd_devs[unit];
1244 switch (FUNCTION(dev)) {
1246 return(video_close(bktr));
1248 return(tuner_close(bktr));
1250 return(vbi_close(bktr));
1260 bktr_read(dev_t dev, struct uio *uio, int ioflag)
1267 bktr = bktr_cd.cd_devs[unit];
1269 switch (FUNCTION(dev)) {
1271 return(video_read(bktr, unit, dev, uio));
1273 return(vbi_read(bktr, uio, ioflag));
1284 bktr_write(dev_t dev, struct uio *uio, int ioflag)
1286 /* operation not supported */
1294 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
1301 bktr = bktr_cd.cd_devs[unit];
1303 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
1306 switch (FUNCTION(dev)) {
1308 return(video_ioctl(bktr, unit, cmd, arg, pr));
1310 return(tuner_ioctl(bktr, unit, cmd, arg, pr));
1320 bktr_mmap(dev_t dev, off_t offset, int nprot)
1327 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
1330 bktr = bktr_cd.cd_devs[unit];
1332 if ((vaddr_t)offset < 0)
1335 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
1339 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
1340 (vaddr_t)offset, nprot, BUS_DMA_WAITOK));
1342 return(i386_btop(vtophys(bktr->bigbuf) + offset));
1346 #endif /* __NetBSD__ || __OpenBSD__ */