| Current Path : /sys/dev/bktr/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/dev/bktr/bktr_os.c |
/*-
* 1. Redistributions of source code must retain the
* Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Amancio Hasty and
* Roger Hardiman
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/bktr/bktr_os.c 201223 2009-12-29 21:51:28Z rnoland $");
/*
* This is part of the Driver for Video Capture Cards (Frame grabbers)
* and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
* chipset.
* Copyright Roger Hardiman and Amancio Hasty.
*
* bktr_os : This has all the Operating System dependant code,
* probe/attach and open/close/ioctl/read/mmap
* memory allocation
* PCI bus interfacing
*/
#include "opt_bktr.h" /* include any kernel config options */
#define FIFO_RISC_DISABLED 0
#define ALL_INTS_DISABLED 0
/*******************/
/* *** FreeBSD *** */
/*******************/
#ifdef __FreeBSD__
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/signalvar.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/poll.h>
#if __FreeBSD_version >= 500014
#include <sys/selinfo.h>
#else
#include <sys/select.h>
#endif
#include <vm/vm.h>
#include <vm/vm_kern.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include <sys/bus.h> /* used by smbus and newbus */
#include <machine/bus.h> /* used by bus space and newbus */
#include <sys/bus.h>
#include <sys/rman.h> /* used by newbus */
#include <machine/resource.h> /* used by newbus */
#if (__FreeBSD_version < 500000)
#include <machine/clock.h> /* for DELAY */
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#else
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#endif
#include <sys/sysctl.h>
int bt848_card = -1;
int bt848_tuner = -1;
int bt848_reverse_mute = -1;
int bt848_format = -1;
int bt848_slow_msp_audio = -1;
#ifdef BKTR_NEW_MSP34XX_DRIVER
int bt848_stereo_once = 0; /* no continuous stereo monitoring */
int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
the autoscan seems work well only with FM... */
int bt848_dolby = 0;
#endif
SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt");
SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, "");
SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, "");
SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, "");
SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, "");
SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, "");
#ifdef BKTR_NEW_MSP34XX_DRIVER
SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, "");
SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, "");
SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, "");
#endif
#endif /* end freebsd section */
/****************/
/* *** BSDI *** */
/****************/
#ifdef __bsdi__
#endif /* __bsdi__ */
/**************************/
/* *** OpenBSD/NetBSD *** */
/**************************/
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/signalvar.h>
#include <sys/mman.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/vnode.h>
#include <vm/vm.h>
#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
#ifndef __NetBSD__
#include <vm/vm_kern.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#endif
#include <sys/device.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#define BKTR_DEBUG
#ifdef BKTR_DEBUG
int bktr_debug = 0;
#define DPR(x) (bktr_debug ? printf x : 0)
#else
#define DPR(x)
#endif
#endif /* __NetBSD__ || __OpenBSD__ */
#ifdef __NetBSD__
#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */
#include <dev/pci/bktr/bktr_reg.h>
#include <dev/pci/bktr/bktr_tuner.h>
#include <dev/pci/bktr/bktr_card.h>
#include <dev/pci/bktr/bktr_audio.h>
#include <dev/pci/bktr/bktr_core.h>
#include <dev/pci/bktr/bktr_os.h>
#else /* Traditional location for .h files */
#include <dev/bktr/ioctl_meteor.h>
#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
#include <dev/bktr/bktr_reg.h>
#include <dev/bktr/bktr_tuner.h>
#include <dev/bktr/bktr_card.h>
#include <dev/bktr/bktr_audio.h>
#include <dev/bktr/bktr_core.h>
#include <dev/bktr/bktr_os.h>
#if defined(BKTR_USE_FREEBSD_SMBUS)
#include <dev/bktr/bktr_i2c.h>
#include "iicbb_if.h"
#include "smbus_if.h"
#endif
#endif
/****************************/
/* *** FreeBSD 4.x code *** */
/****************************/
static int bktr_probe( device_t dev );
static int bktr_attach( device_t dev );
static int bktr_detach( device_t dev );
static int bktr_shutdown( device_t dev );
static void bktr_intr(void *arg) { common_bktr_intr(arg); }
static device_method_t bktr_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bktr_probe),
DEVMETHOD(device_attach, bktr_attach),
DEVMETHOD(device_detach, bktr_detach),
DEVMETHOD(device_shutdown, bktr_shutdown),
#if defined(BKTR_USE_FREEBSD_SMBUS)
/* iicbb interface */
DEVMETHOD(iicbb_callback, bti2c_iic_callback),
DEVMETHOD(iicbb_setsda, bti2c_iic_setsda),
DEVMETHOD(iicbb_setscl, bti2c_iic_setscl),
DEVMETHOD(iicbb_getsda, bti2c_iic_getsda),
DEVMETHOD(iicbb_getscl, bti2c_iic_getscl),
DEVMETHOD(iicbb_reset, bti2c_iic_reset),
/* smbus interface */
DEVMETHOD(smbus_callback, bti2c_smb_callback),
DEVMETHOD(smbus_writeb, bti2c_smb_writeb),
DEVMETHOD(smbus_writew, bti2c_smb_writew),
DEVMETHOD(smbus_readb, bti2c_smb_readb),
#endif
{ 0, 0 }
};
static driver_t bktr_driver = {
"bktr",
bktr_methods,
sizeof(struct bktr_softc),
};
static devclass_t bktr_devclass;
static d_open_t bktr_open;
static d_close_t bktr_close;
static d_read_t bktr_read;
static d_write_t bktr_write;
static d_ioctl_t bktr_ioctl;
static d_mmap_t bktr_mmap;
static d_poll_t bktr_poll;
static struct cdevsw bktr_cdevsw = {
.d_version = D_VERSION,
.d_flags = D_NEEDGIANT,
.d_open = bktr_open,
.d_close = bktr_close,
.d_read = bktr_read,
.d_write = bktr_write,
.d_ioctl = bktr_ioctl,
.d_poll = bktr_poll,
.d_mmap = bktr_mmap,
.d_name = "bktr",
};
#ifdef BKTR_USE_FREEBSD_SMBUS
#include <dev/iicbus/iiconf.h>
#include <dev/smbus/smbconf.h>
MODULE_DEPEND(bktr, iicbb, IICBB_MINVER, IICBB_MODVER, IICBB_MAXVER);
MODULE_DEPEND(bktr, iicbus, IICBUS_MINVER, IICBUS_MODVER, IICBUS_MAXVER);
MODULE_DEPEND(bktr, smbus, SMBUS_MINVER, SMBUS_MODVER, SMBUS_MAXVER);
#endif
DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0);
MODULE_DEPEND(bktr, bktr_mem, 1,1,1);
MODULE_VERSION(bktr, 1);
/*
* the boot time probe routine.
*/
static int
bktr_probe( device_t dev )
{
unsigned int type = pci_get_devid(dev);
unsigned int rev = pci_get_revid(dev);
if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE)
{
switch (PCI_PRODUCT(type)) {
case PCI_PRODUCT_BROOKTREE_BT848:
if (rev == 0x12)
device_set_desc(dev, "BrookTree 848A");
else
device_set_desc(dev, "BrookTree 848");
return BUS_PROBE_DEFAULT;
case PCI_PRODUCT_BROOKTREE_BT849:
device_set_desc(dev, "BrookTree 849A");
return BUS_PROBE_DEFAULT;
case PCI_PRODUCT_BROOKTREE_BT878:
device_set_desc(dev, "BrookTree 878");
return BUS_PROBE_DEFAULT;
case PCI_PRODUCT_BROOKTREE_BT879:
device_set_desc(dev, "BrookTree 879");
return BUS_PROBE_DEFAULT;
}
};
return ENXIO;
}
/*
* the attach routine.
*/
static int
bktr_attach( device_t dev )
{
u_long latency;
u_long fun;
u_long val;
unsigned int rev;
unsigned int unit;
int error = 0;
#ifdef BROOKTREE_IRQ
u_long old_irq, new_irq;
#endif
struct bktr_softc *bktr = device_get_softc(dev);
unit = device_get_unit(dev);
/* build the device name for bktr_name() */
snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
/*
* Enable bus mastering and Memory Mapped device
*/
val = pci_read_config(dev, PCIR_COMMAND, 4);
val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
pci_write_config(dev, PCIR_COMMAND, val, 4);
/*
* Map control/status registers.
*/
bktr->mem_rid = PCIR_BAR(0);
bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&bktr->mem_rid, RF_ACTIVE);
if (!bktr->res_mem) {
device_printf(dev, "could not map memory\n");
error = ENXIO;
goto fail;
}
bktr->memt = rman_get_bustag(bktr->res_mem);
bktr->memh = rman_get_bushandle(bktr->res_mem);
/*
* Disable the brooktree device
*/
OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
#ifdef BROOKTREE_IRQ /* from the configuration file */
old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
printf("bktr%d: attach: irq changed from %d to %d\n",
unit, (old_irq & 0xff), (new_irq & 0xff));
#endif
/*
* Allocate our interrupt.
*/
bktr->irq_rid = 0;
bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
if (bktr->res_irq == NULL) {
device_printf(dev, "could not map interrupt\n");
error = ENXIO;
goto fail;
}
error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
NULL, bktr_intr, bktr, &bktr->res_ih);
if (error) {
device_printf(dev, "could not setup irq\n");
goto fail;
}
/* Update the Device Control Register */
/* on Bt878 and Bt879 cards */
fun = pci_read_config( dev, 0x40, 2);
fun = fun | 1; /* Enable writes to the sub-system vendor ID */
#if defined( BKTR_430_FX_MODE )
if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
#endif
#if defined( BKTR_SIS_VIA_MODE )
if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for
OPTi chipset motherboards too */
#endif
pci_write_config(dev, 0x40, fun, 2);
#if defined(BKTR_USE_FREEBSD_SMBUS)
if (bt848_i2c_attach(dev))
printf("bktr%d: i2c_attach: can't attach\n", unit);
#endif
/*
* PCI latency timer. 32 is a good value for 4 bus mastering slots, if
* you have more than four, then 16 would probably be a better value.
*/
#ifndef BROOKTREE_DEF_LATENCY_VALUE
#define BROOKTREE_DEF_LATENCY_VALUE 10
#endif
latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
latency = (latency >> 8) & 0xff;
if ( bootverbose ) {
if (latency)
printf("brooktree%d: PCI bus latency is", unit);
else
printf("brooktree%d: PCI bus latency was 0 changing to",
unit);
}
if ( !latency ) {
latency = BROOKTREE_DEF_LATENCY_VALUE;
pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
}
if ( bootverbose ) {
printf(" %d.\n", (int) latency);
}
/* read the pci device id and revision id */
fun = pci_get_devid(dev);
rev = pci_get_revid(dev);
/* call the common attach code */
common_bktr_attach( bktr, unit, fun, rev );
/* make the device entries */
bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
0, 0, 0444, "bktr%d", unit);
bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
0, 0, 0444, "tuner%d", unit);
bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
0, 0, 0444, "vbi%d" , unit);
/* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
/* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
#if (__FreeBSD_version >=500000)
if (unit == 0) {
bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
}
#endif
return 0;
fail:
if (bktr->res_irq)
bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
if (bktr->res_mem)
bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
return error;
}
/*
* the detach routine.
*/
static int
bktr_detach( device_t dev )
{
struct bktr_softc *bktr = device_get_softc(dev);
#ifdef BKTR_NEW_MSP34XX_DRIVER
/* Disable the soundchip and kernel thread */
if (bktr->msp3400c_info != NULL)
msp_detach(bktr);
#endif
/* Disable the brooktree device */
OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
#if defined(BKTR_USE_FREEBSD_SMBUS)
if (bt848_i2c_detach(dev))
printf("bktr%d: i2c_attach: can't attach\n",
device_get_unit(dev));
#endif
#ifdef USE_VBIMUTEX
mtx_destroy(&bktr->vbimutex);
#endif
/* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
/* The memory is retained by the bktr_mem module so we can unload and */
/* then reload the main bktr driver module */
/* Unregister the /dev/bktrN, tunerN and vbiN devices,
* the aliases for unit 0 are automatically destroyed */
destroy_dev(bktr->vbidev);
destroy_dev(bktr->tunerdev);
destroy_dev(bktr->bktrdev);
/*
* Deallocate resources.
*/
bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
return 0;
}
/*
* the shutdown routine.
*/
static int
bktr_shutdown( device_t dev )
{
struct bktr_softc *bktr = device_get_softc(dev);
/* Disable the brooktree device */
OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
return 0;
}
/*
* Special Memory Allocation
*/
vm_offset_t
get_bktr_mem( int unit, unsigned size )
{
vm_offset_t addr = 0;
addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
0xffffffff, 1<<24, 0);
if (addr == 0)
addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
0xffffffff, PAGE_SIZE, 0);
if (addr == 0) {
printf("bktr%d: Unable to allocate %d bytes of memory.\n",
unit, size);
}
return( addr );
}
/*---------------------------------------------------------
**
** BrookTree 848 character device driver routines
**
**---------------------------------------------------------
*/
#define VIDEO_DEV 0x00
#define TUNER_DEV 0x01
#define VBI_DEV 0x02
#define UNIT(x) ((x) & 0x0f)
#define FUNCTION(x) (x >> 4)
/*
*
*/
static int
bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
{
bktr_ptr_t bktr;
int unit;
int result;
unit = UNIT( dev2unit(dev) );
/* Get the device data */
bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
if (bktr == NULL) {
/* the device is no longer valid/functioning */
return (ENXIO);
}
if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
return( ENXIO );
/* Record that the device is now busy */
device_busy(devclass_get_device(bktr_devclass, unit));
if (bt848_card != -1) {
if ((bt848_card >> 8 == unit ) &&
( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
if ( bktr->bt848_card != (bt848_card & 0xff) ) {
bktr->bt848_card = (bt848_card & 0xff);
probeCard(bktr, FALSE, unit);
}
}
}
if (bt848_tuner != -1) {
if ((bt848_tuner >> 8 == unit ) &&
( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
bktr->bt848_tuner = (bt848_tuner & 0xff);
probeCard(bktr, FALSE, unit);
}
}
}
if (bt848_reverse_mute != -1) {
if ((bt848_reverse_mute >> 8) == unit ) {
bktr->reverse_mute = bt848_reverse_mute & 0xff;
}
}
if (bt848_slow_msp_audio != -1) {
if ((bt848_slow_msp_audio >> 8) == unit ) {
bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
}
}
#ifdef BKTR_NEW_MSP34XX_DRIVER
if (bt848_stereo_once != 0) {
if ((bt848_stereo_once >> 8) == unit ) {
bktr->stereo_once = (bt848_stereo_once & 0xff);
}
}
if (bt848_amsound != -1) {
if ((bt848_amsound >> 8) == unit ) {
bktr->amsound = (bt848_amsound & 0xff);
}
}
if (bt848_dolby != -1) {
if ((bt848_dolby >> 8) == unit ) {
bktr->dolby = (bt848_dolby & 0xff);
}
}
#endif
switch ( FUNCTION( dev2unit(dev) ) ) {
case VIDEO_DEV:
result = video_open( bktr );
break;
case TUNER_DEV:
result = tuner_open( bktr );
break;
case VBI_DEV:
result = vbi_open( bktr );
break;
default:
result = ENXIO;
break;
}
/* If there was an error opening the device, undo the busy status */
if (result != 0)
device_unbusy(devclass_get_device(bktr_devclass, unit));
return( result );
}
/*
*
*/
static int
bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
{
bktr_ptr_t bktr;
int unit;
int result;
unit = UNIT( dev2unit(dev) );
/* Get the device data */
bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
if (bktr == NULL) {
/* the device is no longer valid/functioning */
return (ENXIO);
}
switch ( FUNCTION( dev2unit(dev) ) ) {
case VIDEO_DEV:
result = video_close( bktr );
break;
case TUNER_DEV:
result = tuner_close( bktr );
break;
case VBI_DEV:
result = vbi_close( bktr );
break;
default:
return (ENXIO);
break;
}
device_unbusy(devclass_get_device(bktr_devclass, unit));
return( result );
}
/*
*
*/
static int
bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
{
bktr_ptr_t bktr;
int unit;
unit = UNIT(dev2unit(dev));
/* Get the device data */
bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
if (bktr == NULL) {
/* the device is no longer valid/functioning */
return (ENXIO);
}
switch ( FUNCTION( dev2unit(dev) ) ) {
case VIDEO_DEV:
return( video_read( bktr, unit, dev, uio ) );
case VBI_DEV:
return( vbi_read( bktr, uio, ioflag ) );
}
return( ENXIO );
}
/*
*
*/
static int
bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
{
return( EINVAL ); /* XXX or ENXIO ? */
}
/*
*
*/
static int
bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
{
bktr_ptr_t bktr;
int unit;
unit = UNIT(dev2unit(dev));
/* Get the device data */
bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
if (bktr == NULL) {
/* the device is no longer valid/functioning */
return (ENXIO);
}
#ifdef BKTR_GPIO_ACCESS
if (bktr->bigbuf == 0 && cmd != BT848_GPIO_GET_EN &&
cmd != BT848_GPIO_SET_EN && cmd != BT848_GPIO_GET_DATA &&
cmd != BT848_GPIO_SET_DATA) /* no frame buffer allocated (ioctl failed) */
return( ENOMEM );
#else
if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
return( ENOMEM );
#endif
switch ( FUNCTION( dev2unit(dev) ) ) {
case VIDEO_DEV:
return( video_ioctl( bktr, unit, cmd, arg, td ) );
case TUNER_DEV:
return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
}
return( ENXIO );
}
/*
*
*/
static int
bktr_mmap( struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
int nprot, vm_memattr_t *memattr )
{
int unit;
bktr_ptr_t bktr;
unit = UNIT(dev2unit(dev));
if (FUNCTION(dev2unit(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
return( -1 );
/* Get the device data */
bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
if (bktr == NULL) {
/* the device is no longer valid/functioning */
return (ENXIO);
}
if (nprot & PROT_EXEC)
return( -1 );
if (offset < 0)
return( -1 );
if (offset >= bktr->alloc_pages * PAGE_SIZE)
return( -1 );
*paddr = vtophys(bktr->bigbuf) + offset;
return( 0 );
}
static int
bktr_poll( struct cdev *dev, int events, struct thread *td)
{
int unit;
bktr_ptr_t bktr;
int revents = 0;
DECLARE_INTR_MASK(s);
unit = UNIT(dev2unit(dev));
/* Get the device data */
bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
if (bktr == NULL) {
/* the device is no longer valid/functioning */
return (ENXIO);
}
LOCK_VBI(bktr);
DISABLE_INTR(s);
if (events & (POLLIN | POLLRDNORM)) {
switch ( FUNCTION( dev2unit(dev) ) ) {
case VBI_DEV:
if(bktr->vbisize == 0)
selrecord(td, &bktr->vbi_select);
else
revents |= events & (POLLIN | POLLRDNORM);
break;
}
}
ENABLE_INTR(s);
UNLOCK_VBI(bktr);
return (revents);
}
/*****************/
/* *** BSDI *** */
/*****************/
#if defined(__bsdi__)
#endif /* __bsdi__ BSDI specific kernel interface routines */
/*****************************/
/* *** OpenBSD / NetBSD *** */
/*****************************/
#if defined(__NetBSD__) || defined(__OpenBSD__)
#define IPL_VIDEO IPL_BIO /* XXX */
static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
#define bktr_open bktropen
#define bktr_close bktrclose
#define bktr_read bktrread
#define bktr_write bktrwrite
#define bktr_ioctl bktrioctl
#define bktr_mmap bktrmmap
vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
vm_offset_t, vm_offset_t);
#if defined(__OpenBSD__)
static int bktr_probe(struct device *, void *, void *);
#else
static int bktr_probe(struct device *, struct cfdata *, void *);
#endif
static void bktr_attach(struct device *, struct device *, void *);
struct cfattach bktr_ca = {
sizeof(struct bktr_softc), bktr_probe, bktr_attach
};
#if defined(__NetBSD__)
extern struct cfdriver bktr_cd;
#else
struct cfdriver bktr_cd = {
NULL, "bktr", DV_DULL
};
#endif
int
bktr_probe(parent, match, aux)
struct device *parent;
#if defined(__OpenBSD__)
void *match;
#else
struct cfdata *match;
#endif
void *aux;
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
return 1;
return 0;
}
/*
* the attach routine.
*/
static void
bktr_attach(struct device *parent, struct device *self, void *aux)
{
bktr_ptr_t bktr;
u_long latency;
u_long fun;
unsigned int rev;
#if defined(__OpenBSD__)
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
pci_intr_handle_t ih;
const char *intrstr;
int retval;
int unit;
bktr = (bktr_ptr_t)self;
unit = bktr->bktr_dev.dv_unit;
bktr->pc = pa->pa_pc;
bktr->tag = pa->pa_tag;
bktr->dmat = pa->pa_dmat;
/*
* map memory
*/
bktr->memt = pa->pa_memt;
retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
&bktr->phys_base, &bktr->obmemsz, NULL);
if (!retval)
retval = bus_space_map(pa->pa_memt, bktr->phys_base,
bktr->obmemsz, 0, &bktr->memh);
if (retval) {
printf(": couldn't map memory\n");
return;
}
/*
* map interrupt
*/
if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
pa->pa_intrline, &ih)) {
printf(": couldn't map interrupt\n");
return;
}
intrstr = pci_intr_string(pa->pa_pc, ih);
bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
bktr_intr, bktr, bktr->bktr_dev.dv_xname);
if (bktr->ih == NULL) {
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
if (intrstr != NULL)
printf(": %s\n", intrstr);
#endif /* __OpenBSD__ */
#if defined(__NetBSD__)
struct pci_attach_args *pa = aux;
pci_intr_handle_t ih;
const char *intrstr;
int retval;
int unit;
bktr = (bktr_ptr_t)self;
unit = bktr->bktr_dev.dv_unit;
bktr->dmat = pa->pa_dmat;
printf("\n");
/*
* map memory
*/
retval = pci_mapreg_map(pa, PCI_MAPREG_START,
PCI_MAPREG_TYPE_MEM
| PCI_MAPREG_MEM_TYPE_32BIT, 0,
&bktr->memt, &bktr->memh, NULL,
&bktr->obmemsz);
DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
if (retval) {
printf("%s: couldn't map memory\n", bktr_name(bktr));
return;
}
/*
* Disable the brooktree device
*/
OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
/*
* map interrupt
*/
if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
pa->pa_intrline, &ih)) {
printf("%s: couldn't map interrupt\n",
bktr_name(bktr));
return;
}
intrstr = pci_intr_string(pa->pa_pc, ih);
bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
bktr_intr, bktr);
if (bktr->ih == NULL) {
printf("%s: couldn't establish interrupt",
bktr_name(bktr));
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
if (intrstr != NULL)
printf("%s: interrupting at %s\n", bktr_name(bktr),
intrstr);
#endif /* __NetBSD__ */
/*
* PCI latency timer. 32 is a good value for 4 bus mastering slots, if
* you have more than four, then 16 would probably be a better value.
*/
#ifndef BROOKTREE_DEF_LATENCY_VALUE
#define BROOKTREE_DEF_LATENCY_VALUE 10
#endif
latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
latency = (latency >> 8) & 0xff;
if (!latency) {
if (bootverbose) {
printf("%s: PCI bus latency was 0 changing to %d",
bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
}
latency = BROOKTREE_DEF_LATENCY_VALUE;
pci_conf_write(pa->pa_pc, pa->pa_tag,
PCI_LATENCY_TIMER, latency<<8);
}
/* Enabled Bus Master
XXX: check if all old DMA is stopped first (e.g. after warm
boot) */
fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
fun | PCI_COMMAND_MASTER_ENABLE);
/* read the pci id and determine the card type */
fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
common_bktr_attach(bktr, unit, fun, rev);
}
/*
* Special Memory Allocation
*/
vm_offset_t
get_bktr_mem(bktr, dmapp, size)
bktr_ptr_t bktr;
bus_dmamap_t *dmapp;
unsigned int size;
{
bus_dma_tag_t dmat = bktr->dmat;
bus_dma_segment_t seg;
bus_size_t align;
int rseg;
caddr_t kva;
/*
* Allocate a DMA area
*/
align = 1 << 24;
if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
&rseg, BUS_DMA_NOWAIT)) {
align = PAGE_SIZE;
if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
&rseg, BUS_DMA_NOWAIT)) {
printf("%s: Unable to dmamem_alloc of %d bytes\n",
bktr_name(bktr), size);
return 0;
}
}
if (bus_dmamem_map(dmat, &seg, rseg, size,
&kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
printf("%s: Unable to dmamem_map of %d bytes\n",
bktr_name(bktr), size);
bus_dmamem_free(dmat, &seg, rseg);
return 0;
}
#ifdef __OpenBSD__
bktr->dm_mapsize = size;
#endif
/*
* Create and locd the DMA map for the DMA area
*/
if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
printf("%s: Unable to dmamap_create of %d bytes\n",
bktr_name(bktr), size);
bus_dmamem_unmap(dmat, kva, size);
bus_dmamem_free(dmat, &seg, rseg);
return 0;
}
if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
printf("%s: Unable to dmamap_load of %d bytes\n",
bktr_name(bktr), size);
bus_dmamem_unmap(dmat, kva, size);
bus_dmamem_free(dmat, &seg, rseg);
bus_dmamap_destroy(dmat, *dmapp);
return 0;
}
return (vm_offset_t)kva;
}
void
free_bktr_mem(bktr, dmap, kva)
bktr_ptr_t bktr;
bus_dmamap_t dmap;
vm_offset_t kva;
{
bus_dma_tag_t dmat = bktr->dmat;
#ifdef __NetBSD__
bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
#else
bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
#endif
bus_dmamem_free(dmat, dmap->dm_segs, 1);
bus_dmamap_destroy(dmat, dmap);
}
/*---------------------------------------------------------
**
** BrookTree 848 character device driver routines
**
**---------------------------------------------------------
*/
#define VIDEO_DEV 0x00
#define TUNER_DEV 0x01
#define VBI_DEV 0x02
#define UNIT(x) (dev2unit((x) & 0x0f))
#define FUNCTION(x) (dev2unit((x >> 4) & 0x0f))
/*
*
*/
int
bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
{
bktr_ptr_t bktr;
int unit;
unit = UNIT(dev);
/* unit out of range */
if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
return(ENXIO);
bktr = bktr_cd.cd_devs[unit];
if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
return(ENXIO);
switch (FUNCTION(dev)) {
case VIDEO_DEV:
return(video_open(bktr));
case TUNER_DEV:
return(tuner_open(bktr));
case VBI_DEV:
return(vbi_open(bktr));
}
return(ENXIO);
}
/*
*
*/
int
bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
{
bktr_ptr_t bktr;
int unit;
unit = UNIT(dev);
bktr = bktr_cd.cd_devs[unit];
switch (FUNCTION(dev)) {
case VIDEO_DEV:
return(video_close(bktr));
case TUNER_DEV:
return(tuner_close(bktr));
case VBI_DEV:
return(vbi_close(bktr));
}
return(ENXIO);
}
/*
*
*/
int
bktr_read(dev_t dev, struct uio *uio, int ioflag)
{
bktr_ptr_t bktr;
int unit;
unit = UNIT(dev);
bktr = bktr_cd.cd_devs[unit];
switch (FUNCTION(dev)) {
case VIDEO_DEV:
return(video_read(bktr, unit, dev, uio));
case VBI_DEV:
return(vbi_read(bktr, uio, ioflag));
}
return(ENXIO);
}
/*
*
*/
int
bktr_write(dev_t dev, struct uio *uio, int ioflag)
{
/* operation not supported */
return(EOPNOTSUPP);
}
/*
*
*/
int
bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
{
bktr_ptr_t bktr;
int unit;
unit = UNIT(dev);
bktr = bktr_cd.cd_devs[unit];
if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
return(ENOMEM);
switch (FUNCTION(dev)) {
case VIDEO_DEV:
return(video_ioctl(bktr, unit, cmd, arg, pr));
case TUNER_DEV:
return(tuner_ioctl(bktr, unit, cmd, arg, pr));
}
return(ENXIO);
}
/*
*
*/
paddr_t
bktr_mmap(dev_t dev, off_t offset, int nprot)
{
int unit;
bktr_ptr_t bktr;
unit = UNIT(dev);
if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
return(-1);
bktr = bktr_cd.cd_devs[unit];
if ((vaddr_t)offset < 0)
return(-1);
if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
return(-1);
#ifdef __NetBSD__
return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
(vaddr_t)offset, nprot, BUS_DMA_WAITOK));
#else
return(i386_btop(vtophys(bktr->bigbuf) + offset));
#endif
}
#endif /* __NetBSD__ || __OpenBSD__ */