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_memio.h> /* used by bus space */
84 #include <machine/bus.h> /* used by bus space and newbus */
87 #include <sys/rman.h> /* used by newbus */
88 #include <machine/resource.h> /* used by newbus */
90 #if (__FreeBSD_version < 500000)
91 #include <machine/clock.h> /* for DELAY */
92 #include <pci/pcivar.h>
93 #include <pci/pcireg.h>
95 #include <dev/pci/pcivar.h>
96 #include <dev/pci/pcireg.h>
99 #include <sys/sysctl.h>
101 int bt848_tuner = -1;
102 int bt848_reverse_mute = -1;
103 int bt848_format = -1;
104 int bt848_slow_msp_audio = -1;
105 #ifdef BKTR_NEW_MSP34XX_DRIVER
106 int bt848_stereo_once = 0; /* no continuous stereo monitoring */
107 int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
108 the autoscan seems work well only with FM... */
112 SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt");
113 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, "");
114 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, "");
115 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, "");
116 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, "");
117 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, "");
118 #ifdef BKTR_NEW_MSP34XX_DRIVER
119 SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, "");
120 SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, "");
121 SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, "");
124 #endif /* end freebsd section */
132 #endif /* __bsdi__ */
135 /**************************/
136 /* *** OpenBSD/NetBSD *** */
137 /**************************/
138 #if defined(__NetBSD__) || defined(__OpenBSD__)
140 #include <sys/param.h>
141 #include <sys/systm.h>
142 #include <sys/conf.h>
144 #include <sys/kernel.h>
145 #include <sys/signalvar.h>
146 #include <sys/mman.h>
147 #include <sys/poll.h>
148 #include <sys/select.h>
149 #include <sys/vnode.h>
154 #include <vm/vm_kern.h>
156 #include <vm/vm_extern.h>
159 #include <sys/device.h>
160 #include <dev/pci/pcivar.h>
161 #include <dev/pci/pcireg.h>
162 #include <dev/pci/pcidevs.h>
167 #define DPR(x) (bktr_debug ? printf x : 0)
171 #endif /* __NetBSD__ || __OpenBSD__ */
175 #include <dev/ic/bt8xx.h> /* NetBSD location for .h files */
176 #include <dev/pci/bktr/bktr_reg.h>
177 #include <dev/pci/bktr/bktr_tuner.h>
178 #include <dev/pci/bktr/bktr_card.h>
179 #include <dev/pci/bktr/bktr_audio.h>
180 #include <dev/pci/bktr/bktr_core.h>
181 #include <dev/pci/bktr/bktr_os.h>
182 #else /* Traditional location for .h files */
183 #include <dev/bktr/ioctl_meteor.h>
184 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
185 #include <dev/bktr/bktr_reg.h>
186 #include <dev/bktr/bktr_tuner.h>
187 #include <dev/bktr/bktr_card.h>
188 #include <dev/bktr/bktr_audio.h>
189 #include <dev/bktr/bktr_core.h>
190 #include <dev/bktr/bktr_os.h>
192 #if defined(BKTR_USE_FREEBSD_SMBUS)
193 #include <dev/bktr/bktr_i2c.h>
195 #include "iicbb_if.h"
196 #include "smbus_if.h"
201 /****************************/
202 /* *** FreeBSD 4.x code *** */
203 /****************************/
205 static int bktr_probe( device_t dev );
206 static int bktr_attach( device_t dev );
207 static int bktr_detach( device_t dev );
208 static int bktr_shutdown( device_t dev );
209 static void bktr_intr(void *arg) { common_bktr_intr(arg); }
211 static device_method_t bktr_methods[] = {
212 /* Device interface */
213 DEVMETHOD(device_probe, bktr_probe),
214 DEVMETHOD(device_attach, bktr_attach),
215 DEVMETHOD(device_detach, bktr_detach),
216 DEVMETHOD(device_shutdown, bktr_shutdown),
218 #if defined(BKTR_USE_FREEBSD_SMBUS)
219 /* iicbb interface */
220 DEVMETHOD(iicbb_callback, bti2c_iic_callback),
221 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda),
222 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl),
223 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda),
224 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl),
225 DEVMETHOD(iicbb_reset, bti2c_iic_reset),
227 /* smbus interface */
228 DEVMETHOD(smbus_callback, bti2c_smb_callback),
229 DEVMETHOD(smbus_writeb, bti2c_smb_writeb),
230 DEVMETHOD(smbus_writew, bti2c_smb_writew),
231 DEVMETHOD(smbus_readb, bti2c_smb_readb),
237 static driver_t bktr_driver = {
240 sizeof(struct bktr_softc),
243 static devclass_t bktr_devclass;
245 static d_open_t bktr_open;
246 static d_close_t bktr_close;
247 static d_read_t bktr_read;
248 static d_write_t bktr_write;
249 static d_ioctl_t bktr_ioctl;
250 static d_mmap_t bktr_mmap;
251 static d_poll_t bktr_poll;
253 static struct cdevsw bktr_cdevsw = {
254 .d_version = D_VERSION,
255 .d_flags = D_NEEDGIANT,
257 .d_close = bktr_close,
259 .d_write = bktr_write,
260 .d_ioctl = bktr_ioctl,
266 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0);
267 MODULE_DEPEND(bktr, bktr_mem, 1,1,1);
268 MODULE_VERSION(bktr, 1);
272 * the boot time probe routine.
275 bktr_probe( device_t dev )
277 unsigned int type = pci_get_devid(dev);
278 unsigned int rev = pci_get_revid(dev);
280 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE)
282 switch (PCI_PRODUCT(type)) {
283 case PCI_PRODUCT_BROOKTREE_BT848:
285 device_set_desc(dev, "BrookTree 848A");
287 device_set_desc(dev, "BrookTree 848");
288 return BUS_PROBE_DEFAULT;
289 case PCI_PRODUCT_BROOKTREE_BT849:
290 device_set_desc(dev, "BrookTree 849A");
291 return BUS_PROBE_DEFAULT;
292 case PCI_PRODUCT_BROOKTREE_BT878:
293 device_set_desc(dev, "BrookTree 878");
294 return BUS_PROBE_DEFAULT;
295 case PCI_PRODUCT_BROOKTREE_BT879:
296 device_set_desc(dev, "BrookTree 879");
297 return BUS_PROBE_DEFAULT;
306 * the attach routine.
309 bktr_attach( device_t dev )
318 u_long old_irq, new_irq;
321 struct bktr_softc *bktr = device_get_softc(dev);
323 unit = device_get_unit(dev);
325 /* build the device name for bktr_name() */
326 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
329 * Enable bus mastering and Memory Mapped device
331 val = pci_read_config(dev, PCIR_COMMAND, 4);
332 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
333 pci_write_config(dev, PCIR_COMMAND, val, 4);
336 * Map control/status registers.
338 bktr->mem_rid = PCIR_BAR(0);
339 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
340 &bktr->mem_rid, RF_ACTIVE);
342 if (!bktr->res_mem) {
343 device_printf(dev, "could not map memory\n");
347 bktr->memt = rman_get_bustag(bktr->res_mem);
348 bktr->memh = rman_get_bushandle(bktr->res_mem);
352 * Disable the brooktree device
354 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
355 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
358 #ifdef BROOKTREE_IRQ /* from the configuration file */
359 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
360 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
361 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
362 printf("bktr%d: attach: irq changed from %d to %d\n",
363 unit, (old_irq & 0xff), (new_irq & 0xff));
367 * Allocate our interrupt.
370 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
371 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
372 if (bktr->res_irq == NULL) {
373 device_printf(dev, "could not map interrupt\n");
378 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
379 bktr_intr, bktr, &bktr->res_ih);
381 device_printf(dev, "could not setup irq\n");
387 /* Update the Device Control Register */
388 /* on Bt878 and Bt879 cards */
389 fun = pci_read_config( dev, 0x40, 2);
390 fun = fun | 1; /* Enable writes to the sub-system vendor ID */
392 #if defined( BKTR_430_FX_MODE )
393 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
394 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
397 #if defined( BKTR_SIS_VIA_MODE )
398 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
399 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for
400 OPTi chipset motherboards too */
402 pci_write_config(dev, 0x40, fun, 2);
404 #if defined(BKTR_USE_FREEBSD_SMBUS)
405 if (bt848_i2c_attach(dev))
406 printf("bktr%d: i2c_attach: can't attach\n", unit);
410 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
411 * you have more than four, then 16 would probably be a better value.
413 #ifndef BROOKTREE_DEF_LATENCY_VALUE
414 #define BROOKTREE_DEF_LATENCY_VALUE 10
416 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
417 latency = (latency >> 8) & 0xff;
420 printf("brooktree%d: PCI bus latency is", unit);
422 printf("brooktree%d: PCI bus latency was 0 changing to",
426 latency = BROOKTREE_DEF_LATENCY_VALUE;
427 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
430 printf(" %d.\n", (int) latency);
433 /* read the pci device id and revision id */
434 fun = pci_get_devid(dev);
435 rev = pci_get_revid(dev);
437 /* call the common attach code */
438 common_bktr_attach( bktr, unit, fun, rev );
440 /* make the device entries */
441 bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
442 0, 0, 0444, "bktr%d", unit);
443 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
444 0, 0, 0444, "tuner%d", unit);
445 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
446 0, 0, 0444, "vbi%d" , unit);
449 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
450 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
451 #if (__FreeBSD_version >=500000)
453 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
454 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
455 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
463 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
465 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem);
471 * the detach routine.
474 bktr_detach( device_t dev )
476 struct bktr_softc *bktr = device_get_softc(dev);
478 #ifdef BKTR_NEW_MSP34XX_DRIVER
479 /* Disable the soundchip and kernel thread */
480 if (bktr->msp3400c_info != NULL)
484 /* Disable the brooktree device */
485 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
486 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
488 #if defined(BKTR_USE_FREEBSD_SMBUS)
489 if (bt848_i2c_detach(dev))
490 printf("bktr%d: i2c_attach: can't attach\n",
491 device_get_unit(dev));
494 mtx_destroy(&bktr->vbimutex);
497 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
498 /* The memory is retained by the bktr_mem module so we can unload and */
499 /* then reload the main bktr driver module */
501 /* Unregister the /dev/bktrN, tunerN and vbiN devices,
502 * the aliases for unit 0 are automatically destroyed */
503 destroy_dev(bktr->vbidev);
504 destroy_dev(bktr->tunerdev);
505 destroy_dev(bktr->bktrdev);
508 * Deallocate resources.
510 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
511 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
512 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
518 * the shutdown routine.
521 bktr_shutdown( device_t dev )
523 struct bktr_softc *bktr = device_get_softc(dev);
525 /* Disable the brooktree device */
526 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
527 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
534 * Special Memory Allocation
537 get_bktr_mem( int unit, unsigned size )
539 vm_offset_t addr = 0;
541 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
542 0xffffffff, 1<<24, 0);
544 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
545 0xffffffff, PAGE_SIZE, 0);
547 printf("bktr%d: Unable to allocate %d bytes of memory.\n",
555 /*---------------------------------------------------------
557 ** BrookTree 848 character device driver routines
559 **---------------------------------------------------------
562 #define VIDEO_DEV 0x00
563 #define TUNER_DEV 0x01
566 #define UNIT(x) ((x) & 0x0f)
567 #define FUNCTION(x) (x >> 4)
573 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
579 unit = UNIT( minor(dev) );
581 /* Get the device data */
582 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
584 /* the device is no longer valid/functioning */
588 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
591 /* Record that the device is now busy */
592 device_busy(devclass_get_device(bktr_devclass, unit));
595 if (bt848_card != -1) {
596 if ((bt848_card >> 8 == unit ) &&
597 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
598 if ( bktr->bt848_card != (bt848_card & 0xff) ) {
599 bktr->bt848_card = (bt848_card & 0xff);
600 probeCard(bktr, FALSE, unit);
605 if (bt848_tuner != -1) {
606 if ((bt848_tuner >> 8 == unit ) &&
607 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
608 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
609 bktr->bt848_tuner = (bt848_tuner & 0xff);
610 probeCard(bktr, FALSE, unit);
615 if (bt848_reverse_mute != -1) {
616 if ((bt848_reverse_mute >> 8) == unit ) {
617 bktr->reverse_mute = bt848_reverse_mute & 0xff;
621 if (bt848_slow_msp_audio != -1) {
622 if ((bt848_slow_msp_audio >> 8) == unit ) {
623 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
627 #ifdef BKTR_NEW_MSP34XX_DRIVER
628 if (bt848_stereo_once != 0) {
629 if ((bt848_stereo_once >> 8) == unit ) {
630 bktr->stereo_once = (bt848_stereo_once & 0xff);
634 if (bt848_amsound != -1) {
635 if ((bt848_amsound >> 8) == unit ) {
636 bktr->amsound = (bt848_amsound & 0xff);
640 if (bt848_dolby != -1) {
641 if ((bt848_dolby >> 8) == unit ) {
642 bktr->dolby = (bt848_dolby & 0xff);
647 switch ( FUNCTION( minor(dev) ) ) {
649 result = video_open( bktr );
652 result = tuner_open( bktr );
655 result = vbi_open( bktr );
662 /* If there was an error opening the device, undo the busy status */
664 device_unbusy(devclass_get_device(bktr_devclass, unit));
673 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
679 unit = UNIT( minor(dev) );
681 /* Get the device data */
682 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
684 /* the device is no longer valid/functioning */
688 switch ( FUNCTION( minor(dev) ) ) {
690 result = video_close( bktr );
693 result = tuner_close( bktr );
696 result = vbi_close( bktr );
703 device_unbusy(devclass_get_device(bktr_devclass, unit));
712 bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
717 unit = UNIT(minor(dev));
719 /* Get the device data */
720 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
722 /* the device is no longer valid/functioning */
726 switch ( FUNCTION( minor(dev) ) ) {
728 return( video_read( bktr, unit, dev, uio ) );
730 return( vbi_read( bktr, uio, ioflag ) );
740 bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
742 return( EINVAL ); /* XXX or ENXIO ? */
750 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
755 unit = UNIT(minor(dev));
757 /* Get the device data */
758 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
760 /* the device is no longer valid/functioning */
764 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
767 switch ( FUNCTION( minor(dev) ) ) {
769 return( video_ioctl( bktr, unit, cmd, arg, td ) );
771 return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
782 bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot )
787 unit = UNIT(minor(dev));
789 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
792 /* Get the device data */
793 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
795 /* the device is no longer valid/functioning */
799 if (nprot & PROT_EXEC)
805 if (offset >= bktr->alloc_pages * PAGE_SIZE)
808 *paddr = vtophys(bktr->bigbuf) + offset;
813 bktr_poll( struct cdev *dev, int events, struct thread *td)
818 DECLARE_INTR_MASK(s);
820 unit = UNIT(minor(dev));
822 /* Get the device data */
823 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
825 /* the device is no longer valid/functioning */
832 if (events & (POLLIN | POLLRDNORM)) {
834 switch ( FUNCTION( minor(dev) ) ) {
836 if(bktr->vbisize == 0)
837 selrecord(td, &bktr->vbi_select);
839 revents |= events & (POLLIN | POLLRDNORM);
854 #if defined(__bsdi__)
855 #endif /* __bsdi__ BSDI specific kernel interface routines */
858 /*****************************/
859 /* *** OpenBSD / NetBSD *** */
860 /*****************************/
861 #if defined(__NetBSD__) || defined(__OpenBSD__)
863 #define IPL_VIDEO IPL_BIO /* XXX */
865 static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
867 #define bktr_open bktropen
868 #define bktr_close bktrclose
869 #define bktr_read bktrread
870 #define bktr_write bktrwrite
871 #define bktr_ioctl bktrioctl
872 #define bktr_mmap bktrmmap
874 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
875 vm_offset_t, vm_offset_t);
877 #if defined(__OpenBSD__)
878 static int bktr_probe(struct device *, void *, void *);
880 static int bktr_probe(struct device *, struct cfdata *, void *);
882 static void bktr_attach(struct device *, struct device *, void *);
884 struct cfattach bktr_ca = {
885 sizeof(struct bktr_softc), bktr_probe, bktr_attach
888 #if defined(__NetBSD__)
889 extern struct cfdriver bktr_cd;
891 struct cfdriver bktr_cd = {
892 NULL, "bktr", DV_DULL
897 bktr_probe(parent, match, aux)
898 struct device *parent;
899 #if defined(__OpenBSD__)
902 struct cfdata *match;
906 struct pci_attach_args *pa = aux;
908 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
909 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
910 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
911 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
912 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
920 * the attach routine.
923 bktr_attach(struct device *parent, struct device *self, void *aux)
930 #if defined(__OpenBSD__)
931 struct pci_attach_args *pa = aux;
932 pci_chipset_tag_t pc = pa->pa_pc;
934 pci_intr_handle_t ih;
939 bktr = (bktr_ptr_t)self;
940 unit = bktr->bktr_dev.dv_unit;
942 bktr->pc = pa->pa_pc;
943 bktr->tag = pa->pa_tag;
944 bktr->dmat = pa->pa_dmat;
949 bktr->memt = pa->pa_memt;
950 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
951 &bktr->phys_base, &bktr->obmemsz, NULL);
953 retval = bus_space_map(pa->pa_memt, bktr->phys_base,
954 bktr->obmemsz, 0, &bktr->memh);
956 printf(": couldn't map memory\n");
964 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
965 pa->pa_intrline, &ih)) {
966 printf(": couldn't map interrupt\n");
969 intrstr = pci_intr_string(pa->pa_pc, ih);
971 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
972 bktr_intr, bktr, bktr->bktr_dev.dv_xname);
973 if (bktr->ih == NULL) {
974 printf(": couldn't establish interrupt");
976 printf(" at %s", intrstr);
982 printf(": %s\n", intrstr);
983 #endif /* __OpenBSD__ */
985 #if defined(__NetBSD__)
986 struct pci_attach_args *pa = aux;
987 pci_intr_handle_t ih;
992 bktr = (bktr_ptr_t)self;
993 unit = bktr->bktr_dev.dv_unit;
994 bktr->dmat = pa->pa_dmat;
1001 retval = pci_mapreg_map(pa, PCI_MAPREG_START,
1003 | PCI_MAPREG_MEM_TYPE_32BIT, 0,
1004 &bktr->memt, &bktr->memh, NULL,
1006 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
1007 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
1009 printf("%s: couldn't map memory\n", bktr_name(bktr));
1014 * Disable the brooktree device
1016 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
1017 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
1022 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
1023 pa->pa_intrline, &ih)) {
1024 printf("%s: couldn't map interrupt\n",
1028 intrstr = pci_intr_string(pa->pa_pc, ih);
1029 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
1031 if (bktr->ih == NULL) {
1032 printf("%s: couldn't establish interrupt",
1034 if (intrstr != NULL)
1035 printf(" at %s", intrstr);
1039 if (intrstr != NULL)
1040 printf("%s: interrupting at %s\n", bktr_name(bktr),
1042 #endif /* __NetBSD__ */
1045 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
1046 * you have more than four, then 16 would probably be a better value.
1048 #ifndef BROOKTREE_DEF_LATENCY_VALUE
1049 #define BROOKTREE_DEF_LATENCY_VALUE 10
1051 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
1052 latency = (latency >> 8) & 0xff;
1056 printf("%s: PCI bus latency was 0 changing to %d",
1057 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
1059 latency = BROOKTREE_DEF_LATENCY_VALUE;
1060 pci_conf_write(pa->pa_pc, pa->pa_tag,
1061 PCI_LATENCY_TIMER, latency<<8);
1065 /* Enabled Bus Master
1066 XXX: check if all old DMA is stopped first (e.g. after warm
1068 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
1069 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
1070 fun | PCI_COMMAND_MASTER_ENABLE);
1072 /* read the pci id and determine the card type */
1073 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
1074 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
1076 common_bktr_attach(bktr, unit, fun, rev);
1081 * Special Memory Allocation
1084 get_bktr_mem(bktr, dmapp, size)
1086 bus_dmamap_t *dmapp;
1089 bus_dma_tag_t dmat = bktr->dmat;
1090 bus_dma_segment_t seg;
1096 * Allocate a DMA area
1099 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1100 &rseg, BUS_DMA_NOWAIT)) {
1102 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1103 &rseg, BUS_DMA_NOWAIT)) {
1104 printf("%s: Unable to dmamem_alloc of %d bytes\n",
1105 bktr_name(bktr), size);
1109 if (bus_dmamem_map(dmat, &seg, rseg, size,
1110 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
1111 printf("%s: Unable to dmamem_map of %d bytes\n",
1112 bktr_name(bktr), size);
1113 bus_dmamem_free(dmat, &seg, rseg);
1117 bktr->dm_mapsize = size;
1120 * Create and locd the DMA map for the DMA area
1122 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
1123 printf("%s: Unable to dmamap_create of %d bytes\n",
1124 bktr_name(bktr), size);
1125 bus_dmamem_unmap(dmat, kva, size);
1126 bus_dmamem_free(dmat, &seg, rseg);
1129 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
1130 printf("%s: Unable to dmamap_load of %d bytes\n",
1131 bktr_name(bktr), size);
1132 bus_dmamem_unmap(dmat, kva, size);
1133 bus_dmamem_free(dmat, &seg, rseg);
1134 bus_dmamap_destroy(dmat, *dmapp);
1137 return (vm_offset_t)kva;
1141 free_bktr_mem(bktr, dmap, kva)
1146 bus_dma_tag_t dmat = bktr->dmat;
1149 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
1151 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
1153 bus_dmamem_free(dmat, dmap->dm_segs, 1);
1154 bus_dmamap_destroy(dmat, dmap);
1158 /*---------------------------------------------------------
1160 ** BrookTree 848 character device driver routines
1162 **---------------------------------------------------------
1166 #define VIDEO_DEV 0x00
1167 #define TUNER_DEV 0x01
1168 #define VBI_DEV 0x02
1170 #define UNIT(x) (minor((x) & 0x0f))
1171 #define FUNCTION(x) (minor((x >> 4) & 0x0f))
1177 bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
1184 /* unit out of range */
1185 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
1188 bktr = bktr_cd.cd_devs[unit];
1190 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
1193 switch (FUNCTION(dev)) {
1195 return(video_open(bktr));
1197 return(tuner_open(bktr));
1199 return(vbi_open(bktr));
1210 bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
1217 bktr = bktr_cd.cd_devs[unit];
1219 switch (FUNCTION(dev)) {
1221 return(video_close(bktr));
1223 return(tuner_close(bktr));
1225 return(vbi_close(bktr));
1235 bktr_read(dev_t dev, struct uio *uio, int ioflag)
1242 bktr = bktr_cd.cd_devs[unit];
1244 switch (FUNCTION(dev)) {
1246 return(video_read(bktr, unit, dev, uio));
1248 return(vbi_read(bktr, uio, ioflag));
1259 bktr_write(dev_t dev, struct uio *uio, int ioflag)
1261 /* operation not supported */
1269 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
1276 bktr = bktr_cd.cd_devs[unit];
1278 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
1281 switch (FUNCTION(dev)) {
1283 return(video_ioctl(bktr, unit, cmd, arg, pr));
1285 return(tuner_ioctl(bktr, unit, cmd, arg, pr));
1295 bktr_mmap(dev_t dev, off_t offset, int nprot)
1302 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
1305 bktr = bktr_cd.cd_devs[unit];
1307 if ((vaddr_t)offset < 0)
1310 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
1314 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
1315 (vaddr_t)offset, nprot, BUS_DMA_WAITOK));
1317 return(i386_btop(vtophys(bktr->bigbuf) + offset));
1321 #endif /* __NetBSD__ || __OpenBSD__ */