2 * 1. Redistributions of source code must retain the
3 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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
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.
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.
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
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
41 * Copyright Roger Hardiman and Amancio Hasty.
43 * bktr_os : This has all the Operating System dependant code,
44 * probe/attach and open/close/ioctl/read/mmap
49 #include "opt_bktr.h" /* include any kernel config options */
51 #define FIFO_RISC_DISABLED 0
52 #define ALL_INTS_DISABLED 0
60 #include <sys/param.h>
61 #include <sys/systm.h>
64 #include <sys/kernel.h>
65 #include <sys/module.h>
66 #include <sys/signalvar.h>
67 #include <sys/malloc.h>
70 #if __FreeBSD_version >= 500014
71 #include <sys/selinfo.h>
73 #include <sys/select.h>
77 #include <vm/vm_kern.h>
79 #include <vm/vm_extern.h>
81 #include <sys/bus.h> /* used by smbus and newbus */
83 #include <machine/bus.h> /* used by bus space and newbus */
86 #include <sys/rman.h> /* used by newbus */
87 #include <machine/resource.h> /* used by newbus */
89 #if (__FreeBSD_version < 500000)
90 #include <machine/clock.h> /* for DELAY */
91 #include <pci/pcivar.h>
92 #include <pci/pcireg.h>
94 #include <dev/pci/pcivar.h>
95 #include <dev/pci/pcireg.h>
98 #include <sys/sysctl.h>
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... */
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, "");
123 #endif /* end freebsd section */
131 #endif /* __bsdi__ */
134 /**************************/
135 /* *** OpenBSD/NetBSD *** */
136 /**************************/
137 #if defined(__NetBSD__) || defined(__OpenBSD__)
139 #include <sys/param.h>
140 #include <sys/systm.h>
141 #include <sys/conf.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>
153 #include <vm/vm_kern.h>
155 #include <vm/vm_extern.h>
158 #include <sys/device.h>
159 #include <dev/pci/pcivar.h>
160 #include <dev/pci/pcireg.h>
161 #include <dev/pci/pcidevs.h>
166 #define DPR(x) (bktr_debug ? printf x : 0)
170 #endif /* __NetBSD__ || __OpenBSD__ */
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>
191 #if defined(BKTR_USE_FREEBSD_SMBUS)
192 #include <dev/bktr/bktr_i2c.h>
194 #include "iicbb_if.h"
195 #include "smbus_if.h"
200 /****************************/
201 /* *** FreeBSD 4.x code *** */
202 /****************************/
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); }
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),
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),
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),
236 static driver_t bktr_driver = {
239 sizeof(struct bktr_softc),
242 static devclass_t bktr_devclass;
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;
252 static struct cdevsw bktr_cdevsw = {
253 .d_version = D_VERSION,
254 .d_flags = D_NEEDGIANT,
256 .d_close = bktr_close,
258 .d_write = bktr_write,
259 .d_ioctl = bktr_ioctl,
265 #ifdef BKTR_USE_FREEBSD_SMBUS
266 #include <dev/iicbus/iiconf.h>
267 #include <dev/smbus/smbconf.h>
268 MODULE_DEPEND(bktr, iicbb, IICBB_MINVER, IICBB_MODVER, IICBB_MAXVER);
269 MODULE_DEPEND(bktr, iicbus, IICBUS_MINVER, IICBUS_MODVER, IICBUS_MAXVER);
270 MODULE_DEPEND(bktr, smbus, SMBUS_MINVER, SMBUS_MODVER, SMBUS_MAXVER);
272 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0);
273 MODULE_DEPEND(bktr, bktr_mem, 1,1,1);
274 MODULE_VERSION(bktr, 1);
278 * the boot time probe routine.
281 bktr_probe( device_t dev )
283 unsigned int type = pci_get_devid(dev);
284 unsigned int rev = pci_get_revid(dev);
286 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE)
288 switch (PCI_PRODUCT(type)) {
289 case PCI_PRODUCT_BROOKTREE_BT848:
291 device_set_desc(dev, "BrookTree 848A");
293 device_set_desc(dev, "BrookTree 848");
294 return BUS_PROBE_DEFAULT;
295 case PCI_PRODUCT_BROOKTREE_BT849:
296 device_set_desc(dev, "BrookTree 849A");
297 return BUS_PROBE_DEFAULT;
298 case PCI_PRODUCT_BROOKTREE_BT878:
299 device_set_desc(dev, "BrookTree 878");
300 return BUS_PROBE_DEFAULT;
301 case PCI_PRODUCT_BROOKTREE_BT879:
302 device_set_desc(dev, "BrookTree 879");
303 return BUS_PROBE_DEFAULT;
312 * the attach routine.
315 bktr_attach( device_t dev )
324 u_long old_irq, new_irq;
327 struct bktr_softc *bktr = device_get_softc(dev);
329 unit = device_get_unit(dev);
331 /* build the device name for bktr_name() */
332 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
335 * Enable bus mastering and Memory Mapped device
337 val = pci_read_config(dev, PCIR_COMMAND, 4);
338 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
339 pci_write_config(dev, PCIR_COMMAND, val, 4);
342 * Map control/status registers.
344 bktr->mem_rid = PCIR_BAR(0);
345 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
346 &bktr->mem_rid, RF_ACTIVE);
348 if (!bktr->res_mem) {
349 device_printf(dev, "could not map memory\n");
353 bktr->memt = rman_get_bustag(bktr->res_mem);
354 bktr->memh = rman_get_bushandle(bktr->res_mem);
358 * Disable the brooktree device
360 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
361 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
364 #ifdef BROOKTREE_IRQ /* from the configuration file */
365 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
366 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
367 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
368 printf("bktr%d: attach: irq changed from %d to %d\n",
369 unit, (old_irq & 0xff), (new_irq & 0xff));
373 * Allocate our interrupt.
376 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
377 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
378 if (bktr->res_irq == NULL) {
379 device_printf(dev, "could not map interrupt\n");
384 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
385 bktr_intr, bktr, &bktr->res_ih);
387 device_printf(dev, "could not setup irq\n");
393 /* Update the Device Control Register */
394 /* on Bt878 and Bt879 cards */
395 fun = pci_read_config( dev, 0x40, 2);
396 fun = fun | 1; /* Enable writes to the sub-system vendor ID */
398 #if defined( BKTR_430_FX_MODE )
399 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
400 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
403 #if defined( BKTR_SIS_VIA_MODE )
404 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
405 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for
406 OPTi chipset motherboards too */
408 pci_write_config(dev, 0x40, fun, 2);
410 #if defined(BKTR_USE_FREEBSD_SMBUS)
411 if (bt848_i2c_attach(dev))
412 printf("bktr%d: i2c_attach: can't attach\n", unit);
416 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
417 * you have more than four, then 16 would probably be a better value.
419 #ifndef BROOKTREE_DEF_LATENCY_VALUE
420 #define BROOKTREE_DEF_LATENCY_VALUE 10
422 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
423 latency = (latency >> 8) & 0xff;
426 printf("brooktree%d: PCI bus latency is", unit);
428 printf("brooktree%d: PCI bus latency was 0 changing to",
432 latency = BROOKTREE_DEF_LATENCY_VALUE;
433 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
436 printf(" %d.\n", (int) latency);
439 /* read the pci device id and revision id */
440 fun = pci_get_devid(dev);
441 rev = pci_get_revid(dev);
443 /* call the common attach code */
444 common_bktr_attach( bktr, unit, fun, rev );
446 /* make the device entries */
447 bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
448 0, 0, 0444, "bktr%d", unit);
449 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
450 0, 0, 0444, "tuner%d", unit);
451 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
452 0, 0, 0444, "vbi%d" , unit);
455 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
456 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
457 #if (__FreeBSD_version >=500000)
459 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
460 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
461 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
469 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
471 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem);
477 * the detach routine.
480 bktr_detach( device_t dev )
482 struct bktr_softc *bktr = device_get_softc(dev);
484 #ifdef BKTR_NEW_MSP34XX_DRIVER
485 /* Disable the soundchip and kernel thread */
486 if (bktr->msp3400c_info != NULL)
490 /* Disable the brooktree device */
491 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
492 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
494 #if defined(BKTR_USE_FREEBSD_SMBUS)
495 if (bt848_i2c_detach(dev))
496 printf("bktr%d: i2c_attach: can't attach\n",
497 device_get_unit(dev));
500 mtx_destroy(&bktr->vbimutex);
503 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
504 /* The memory is retained by the bktr_mem module so we can unload and */
505 /* then reload the main bktr driver module */
507 /* Unregister the /dev/bktrN, tunerN and vbiN devices,
508 * the aliases for unit 0 are automatically destroyed */
509 destroy_dev(bktr->vbidev);
510 destroy_dev(bktr->tunerdev);
511 destroy_dev(bktr->bktrdev);
514 * Deallocate resources.
516 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
517 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
518 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
524 * the shutdown routine.
527 bktr_shutdown( device_t dev )
529 struct bktr_softc *bktr = device_get_softc(dev);
531 /* Disable the brooktree device */
532 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
533 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
540 * Special Memory Allocation
543 get_bktr_mem( int unit, unsigned size )
545 vm_offset_t addr = 0;
547 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
548 0xffffffff, 1<<24, 0);
550 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
551 0xffffffff, PAGE_SIZE, 0);
553 printf("bktr%d: Unable to allocate %d bytes of memory.\n",
561 /*---------------------------------------------------------
563 ** BrookTree 848 character device driver routines
565 **---------------------------------------------------------
568 #define VIDEO_DEV 0x00
569 #define TUNER_DEV 0x01
572 #define UNIT(x) ((x) & 0x0f)
573 #define FUNCTION(x) (x >> 4)
579 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
585 unit = UNIT( minor(dev) );
587 /* Get the device data */
588 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
590 /* the device is no longer valid/functioning */
594 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
597 /* Record that the device is now busy */
598 device_busy(devclass_get_device(bktr_devclass, unit));
601 if (bt848_card != -1) {
602 if ((bt848_card >> 8 == unit ) &&
603 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
604 if ( bktr->bt848_card != (bt848_card & 0xff) ) {
605 bktr->bt848_card = (bt848_card & 0xff);
606 probeCard(bktr, FALSE, unit);
611 if (bt848_tuner != -1) {
612 if ((bt848_tuner >> 8 == unit ) &&
613 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
614 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
615 bktr->bt848_tuner = (bt848_tuner & 0xff);
616 probeCard(bktr, FALSE, unit);
621 if (bt848_reverse_mute != -1) {
622 if ((bt848_reverse_mute >> 8) == unit ) {
623 bktr->reverse_mute = bt848_reverse_mute & 0xff;
627 if (bt848_slow_msp_audio != -1) {
628 if ((bt848_slow_msp_audio >> 8) == unit ) {
629 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
633 #ifdef BKTR_NEW_MSP34XX_DRIVER
634 if (bt848_stereo_once != 0) {
635 if ((bt848_stereo_once >> 8) == unit ) {
636 bktr->stereo_once = (bt848_stereo_once & 0xff);
640 if (bt848_amsound != -1) {
641 if ((bt848_amsound >> 8) == unit ) {
642 bktr->amsound = (bt848_amsound & 0xff);
646 if (bt848_dolby != -1) {
647 if ((bt848_dolby >> 8) == unit ) {
648 bktr->dolby = (bt848_dolby & 0xff);
653 switch ( FUNCTION( minor(dev) ) ) {
655 result = video_open( bktr );
658 result = tuner_open( bktr );
661 result = vbi_open( bktr );
668 /* If there was an error opening the device, undo the busy status */
670 device_unbusy(devclass_get_device(bktr_devclass, unit));
679 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
685 unit = UNIT( minor(dev) );
687 /* Get the device data */
688 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
690 /* the device is no longer valid/functioning */
694 switch ( FUNCTION( minor(dev) ) ) {
696 result = video_close( bktr );
699 result = tuner_close( bktr );
702 result = vbi_close( bktr );
709 device_unbusy(devclass_get_device(bktr_devclass, unit));
718 bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
723 unit = UNIT(minor(dev));
725 /* Get the device data */
726 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
728 /* the device is no longer valid/functioning */
732 switch ( FUNCTION( minor(dev) ) ) {
734 return( video_read( bktr, unit, dev, uio ) );
736 return( vbi_read( bktr, uio, ioflag ) );
746 bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
748 return( EINVAL ); /* XXX or ENXIO ? */
756 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
761 unit = UNIT(minor(dev));
763 /* Get the device data */
764 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
766 /* the device is no longer valid/functioning */
770 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
773 switch ( FUNCTION( minor(dev) ) ) {
775 return( video_ioctl( bktr, unit, cmd, arg, td ) );
777 return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
788 bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot )
793 unit = UNIT(minor(dev));
795 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
798 /* Get the device data */
799 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
801 /* the device is no longer valid/functioning */
805 if (nprot & PROT_EXEC)
811 if (offset >= bktr->alloc_pages * PAGE_SIZE)
814 *paddr = vtophys(bktr->bigbuf) + offset;
819 bktr_poll( struct cdev *dev, int events, struct thread *td)
824 DECLARE_INTR_MASK(s);
826 unit = UNIT(minor(dev));
828 /* Get the device data */
829 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
831 /* the device is no longer valid/functioning */
838 if (events & (POLLIN | POLLRDNORM)) {
840 switch ( FUNCTION( minor(dev) ) ) {
842 if(bktr->vbisize == 0)
843 selrecord(td, &bktr->vbi_select);
845 revents |= events & (POLLIN | POLLRDNORM);
860 #if defined(__bsdi__)
861 #endif /* __bsdi__ BSDI specific kernel interface routines */
864 /*****************************/
865 /* *** OpenBSD / NetBSD *** */
866 /*****************************/
867 #if defined(__NetBSD__) || defined(__OpenBSD__)
869 #define IPL_VIDEO IPL_BIO /* XXX */
871 static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
873 #define bktr_open bktropen
874 #define bktr_close bktrclose
875 #define bktr_read bktrread
876 #define bktr_write bktrwrite
877 #define bktr_ioctl bktrioctl
878 #define bktr_mmap bktrmmap
880 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
881 vm_offset_t, vm_offset_t);
883 #if defined(__OpenBSD__)
884 static int bktr_probe(struct device *, void *, void *);
886 static int bktr_probe(struct device *, struct cfdata *, void *);
888 static void bktr_attach(struct device *, struct device *, void *);
890 struct cfattach bktr_ca = {
891 sizeof(struct bktr_softc), bktr_probe, bktr_attach
894 #if defined(__NetBSD__)
895 extern struct cfdriver bktr_cd;
897 struct cfdriver bktr_cd = {
898 NULL, "bktr", DV_DULL
903 bktr_probe(parent, match, aux)
904 struct device *parent;
905 #if defined(__OpenBSD__)
908 struct cfdata *match;
912 struct pci_attach_args *pa = aux;
914 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
915 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
916 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
917 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
918 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
926 * the attach routine.
929 bktr_attach(struct device *parent, struct device *self, void *aux)
936 #if defined(__OpenBSD__)
937 struct pci_attach_args *pa = aux;
938 pci_chipset_tag_t pc = pa->pa_pc;
940 pci_intr_handle_t ih;
945 bktr = (bktr_ptr_t)self;
946 unit = bktr->bktr_dev.dv_unit;
948 bktr->pc = pa->pa_pc;
949 bktr->tag = pa->pa_tag;
950 bktr->dmat = pa->pa_dmat;
955 bktr->memt = pa->pa_memt;
956 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
957 &bktr->phys_base, &bktr->obmemsz, NULL);
959 retval = bus_space_map(pa->pa_memt, bktr->phys_base,
960 bktr->obmemsz, 0, &bktr->memh);
962 printf(": couldn't map memory\n");
970 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
971 pa->pa_intrline, &ih)) {
972 printf(": couldn't map interrupt\n");
975 intrstr = pci_intr_string(pa->pa_pc, ih);
977 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
978 bktr_intr, bktr, bktr->bktr_dev.dv_xname);
979 if (bktr->ih == NULL) {
980 printf(": couldn't establish interrupt");
982 printf(" at %s", intrstr);
988 printf(": %s\n", intrstr);
989 #endif /* __OpenBSD__ */
991 #if defined(__NetBSD__)
992 struct pci_attach_args *pa = aux;
993 pci_intr_handle_t ih;
998 bktr = (bktr_ptr_t)self;
999 unit = bktr->bktr_dev.dv_unit;
1000 bktr->dmat = pa->pa_dmat;
1007 retval = pci_mapreg_map(pa, PCI_MAPREG_START,
1009 | PCI_MAPREG_MEM_TYPE_32BIT, 0,
1010 &bktr->memt, &bktr->memh, NULL,
1012 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
1013 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
1015 printf("%s: couldn't map memory\n", bktr_name(bktr));
1020 * Disable the brooktree device
1022 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
1023 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
1028 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
1029 pa->pa_intrline, &ih)) {
1030 printf("%s: couldn't map interrupt\n",
1034 intrstr = pci_intr_string(pa->pa_pc, ih);
1035 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
1037 if (bktr->ih == NULL) {
1038 printf("%s: couldn't establish interrupt",
1040 if (intrstr != NULL)
1041 printf(" at %s", intrstr);
1045 if (intrstr != NULL)
1046 printf("%s: interrupting at %s\n", bktr_name(bktr),
1048 #endif /* __NetBSD__ */
1051 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
1052 * you have more than four, then 16 would probably be a better value.
1054 #ifndef BROOKTREE_DEF_LATENCY_VALUE
1055 #define BROOKTREE_DEF_LATENCY_VALUE 10
1057 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
1058 latency = (latency >> 8) & 0xff;
1062 printf("%s: PCI bus latency was 0 changing to %d",
1063 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
1065 latency = BROOKTREE_DEF_LATENCY_VALUE;
1066 pci_conf_write(pa->pa_pc, pa->pa_tag,
1067 PCI_LATENCY_TIMER, latency<<8);
1071 /* Enabled Bus Master
1072 XXX: check if all old DMA is stopped first (e.g. after warm
1074 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
1075 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
1076 fun | PCI_COMMAND_MASTER_ENABLE);
1078 /* read the pci id and determine the card type */
1079 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
1080 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
1082 common_bktr_attach(bktr, unit, fun, rev);
1087 * Special Memory Allocation
1090 get_bktr_mem(bktr, dmapp, size)
1092 bus_dmamap_t *dmapp;
1095 bus_dma_tag_t dmat = bktr->dmat;
1096 bus_dma_segment_t seg;
1102 * Allocate a DMA area
1105 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1106 &rseg, BUS_DMA_NOWAIT)) {
1108 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1109 &rseg, BUS_DMA_NOWAIT)) {
1110 printf("%s: Unable to dmamem_alloc of %d bytes\n",
1111 bktr_name(bktr), size);
1115 if (bus_dmamem_map(dmat, &seg, rseg, size,
1116 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
1117 printf("%s: Unable to dmamem_map of %d bytes\n",
1118 bktr_name(bktr), size);
1119 bus_dmamem_free(dmat, &seg, rseg);
1123 bktr->dm_mapsize = size;
1126 * Create and locd the DMA map for the DMA area
1128 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
1129 printf("%s: Unable to dmamap_create of %d bytes\n",
1130 bktr_name(bktr), size);
1131 bus_dmamem_unmap(dmat, kva, size);
1132 bus_dmamem_free(dmat, &seg, rseg);
1135 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
1136 printf("%s: Unable to dmamap_load of %d bytes\n",
1137 bktr_name(bktr), size);
1138 bus_dmamem_unmap(dmat, kva, size);
1139 bus_dmamem_free(dmat, &seg, rseg);
1140 bus_dmamap_destroy(dmat, *dmapp);
1143 return (vm_offset_t)kva;
1147 free_bktr_mem(bktr, dmap, kva)
1152 bus_dma_tag_t dmat = bktr->dmat;
1155 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
1157 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
1159 bus_dmamem_free(dmat, dmap->dm_segs, 1);
1160 bus_dmamap_destroy(dmat, dmap);
1164 /*---------------------------------------------------------
1166 ** BrookTree 848 character device driver routines
1168 **---------------------------------------------------------
1172 #define VIDEO_DEV 0x00
1173 #define TUNER_DEV 0x01
1174 #define VBI_DEV 0x02
1176 #define UNIT(x) (minor((x) & 0x0f))
1177 #define FUNCTION(x) (minor((x >> 4) & 0x0f))
1183 bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
1190 /* unit out of range */
1191 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
1194 bktr = bktr_cd.cd_devs[unit];
1196 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
1199 switch (FUNCTION(dev)) {
1201 return(video_open(bktr));
1203 return(tuner_open(bktr));
1205 return(vbi_open(bktr));
1216 bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
1223 bktr = bktr_cd.cd_devs[unit];
1225 switch (FUNCTION(dev)) {
1227 return(video_close(bktr));
1229 return(tuner_close(bktr));
1231 return(vbi_close(bktr));
1241 bktr_read(dev_t dev, struct uio *uio, int ioflag)
1248 bktr = bktr_cd.cd_devs[unit];
1250 switch (FUNCTION(dev)) {
1252 return(video_read(bktr, unit, dev, uio));
1254 return(vbi_read(bktr, uio, ioflag));
1265 bktr_write(dev_t dev, struct uio *uio, int ioflag)
1267 /* operation not supported */
1275 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
1282 bktr = bktr_cd.cd_devs[unit];
1284 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
1287 switch (FUNCTION(dev)) {
1289 return(video_ioctl(bktr, unit, cmd, arg, pr));
1291 return(tuner_ioctl(bktr, unit, cmd, arg, pr));
1301 bktr_mmap(dev_t dev, off_t offset, int nprot)
1308 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
1311 bktr = bktr_cd.cd_devs[unit];
1313 if ((vaddr_t)offset < 0)
1316 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
1320 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
1321 (vaddr_t)offset, nprot, BUS_DMA_WAITOK));
1323 return(i386_btop(vtophys(bktr->bigbuf) + offset));
1327 #endif /* __NetBSD__ || __OpenBSD__ */