/* $FreeBSD$ */ /* * 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 * * */ /* * 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. */ #ifdef __FreeBSD__ #include "bktr.h" #include "opt_bktr.h" #include "opt_devfs.h" #endif /* __FreeBSD__ */ #if defined(__NetBSD__) || defined(__OpenBSD__) #include "bktr.h" #include "pci.h" #endif /* __NetBSD__ || __OpenBSD__ */ #define FIFO_RISC_DISABLED 0 #define ALL_INTS_DISABLED 0 #include #include #include #include #include #include #include #include #include #include #include #include #include #include /*******************/ /* *** FreeBSD *** */ /*******************/ #ifdef __FreeBSD__ #if (__FreeBSD_version < 400000) #ifdef DEVFS #include #endif /* DEVFS */ #endif #if (__FreeBSD_version >=400000) || (NSMBUS > 0) #include /* used by smbus and newbus */ #endif #if (__FreeBSD_version >=400000) #include /* used by newbus */ #include /* used by newbus */ #include /* used by newbus */ #endif #include /* for DELAY */ #include #include #include #include /* extensions to ioctl_meteor.h */ #include #include #include #include #include #include #if (NSMBUS > 0) #include #endif #include int bt848_card = -1; int bt848_tuner = -1; int bt848_reverse_mute = -1; int bt848_format = -1; 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, ""); #if (__FreeBSD_version >= 300000) typedef u_long ioctl_cmd_t; #endif #if (__FreeBSD__ == 2) typedef int ioctl_cmd_t; #define PCIR_REVID PCI_CLASS_REG #endif #endif /* __FreeBSD__ */ /****************/ /* *** BSDI *** */ /****************/ #ifdef __bsdi__ #endif /* __bsdi__ */ /**************************/ /* *** OpenBSD/NetBSD *** */ /**************************/ #if defined(__NetBSD__) || defined(__OpenBSD__) #endif /* __NetBSD__ || __OpenBSD__ */ /****************************/ /* *** FreeBSD 4.x code *** */ /****************************/ #if (__FreeBSD_version >= 400000) 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), { 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; #define CDEV_MAJOR 92 static struct cdevsw bktr_cdevsw = { /* open */ bktr_open, /* close */ bktr_close, /* read */ bktr_read, /* write */ bktr_write, /* ioctl */ bktr_ioctl, /* poll */ bktr_poll, /* mmap */ bktr_mmap, /* strategy */ nostrategy, /* name */ "bktr", /* maj */ CDEV_MAJOR, /* dump */ nodump, /* psize */ nopsize, /* flags */ 0, /* bmaj */ -1 }; DEV_DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, bktr_cdevsw, 0, 0); /* * 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); switch (type) { case BROOKTREE_848_PCI_ID: if (rev == 0x12) device_set_desc(dev, "BrookTree 848A"); else device_set_desc(dev, "BrookTree 848"); return 0; case BROOKTREE_849_PCI_ID: device_set_desc(dev, "BrookTree 849A"); return 0; case BROOKTREE_878_PCI_ID: device_set_desc(dev, "BrookTree 878"); return 0; case BROOKTREE_879_PCI_ID: device_set_desc(dev, "BrookTree 879"); return 0; }; return ENXIO; } /* * the attach routine. */ static int bktr_attach( device_t dev ) { bt848_ptr_t bt848; u_long latency; u_long fun; u_long val; unsigned int rev; unsigned int unit; int error = 0; int rid; #ifdef BROOKTREE_IRQ u_long old_irq, new_irq; #endif struct bktr_softc *bktr = device_get_softc(dev); unit = device_get_unit(dev); /* * 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. */ rid = PCI_MAP_REG_START; bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE); if (!bktr->res_mem) { device_printf(dev, "could not map memory\n"); error = ENXIO; goto fail; } bktr->base = rman_get_virtual(bktr->res_mem); /* XXX use bus_space */ /* * Disable the brooktree device */ bt848 = bktr->base; bt848->int_mask = ALL_INTS_DISABLED; bt848->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. */ rid = 0; bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 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_NET, 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); /* XXX call bt848_i2c dependent attach() routine */ #if (NSMBUS > 0) if (bt848_i2c_attach(unit, bktr->base, &bktr->i2c_sc)) 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_dev(&bktr_cdevsw, unit, 0, 0, 0444, "bktr%d", unit); make_dev(&bktr_cdevsw, unit+16, 0, 0, 0444, "tuner%d", unit); make_dev(&bktr_cdevsw, unit+32, 0, 0, 0444, "vbi%d", unit); return 0; fail: return error; } /* * the detach routine. */ static int bktr_detach( device_t dev ) { struct bktr_softc *bktr = device_get_softc(dev); bt848_ptr_t bt848; /* Disable the brooktree device */ bt848 = bktr->base; bt848->int_mask = ALL_INTS_DISABLED; bt848->gpio_dma_ctl = FIFO_RISC_DISABLED; /* FIXME - Free memory for RISC programs, grab buffer, vbi buffers */ /* * Deallocate resources. */ bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); bus_release_resource(dev, SYS_RES_IRQ, 0, bktr->res_irq); bus_release_resource(dev, SYS_RES_MEMORY, PCI_MAP_REG_START, bktr->res_mem); return 0; } /* * the shutdown routine. */ static int bktr_shutdown( device_t dev ) { struct bktr_softc *bktr = device_get_softc(dev); bt848_ptr_t bt848; /* Disable the brooktree device */ bt848 = bktr->base; bt848->int_mask = ALL_INTS_DISABLED; bt848->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_page_alloc_contig(size, 0, 0xffffffff, 1<<24); if (addr == 0) addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 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) /* * */ int bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) { bktr_ptr_t bktr; int unit; int result; unit = UNIT( minor(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 ) && ((bt848_reverse_mute & 0xff) < Bt848_MAX_TUNER) ) { bktr->reverse_mute = bt848_reverse_mute & 0xff; bt848_reverse_mute = -1; } } switch ( FUNCTION( minor(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 ); } /* * */ int bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) { bktr_ptr_t bktr; int unit; int result; unit = UNIT( minor(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( minor(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 ); } /* * */ int bktr_read( dev_t dev, struct uio *uio, int ioflag ) { bktr_ptr_t bktr; int unit; unit = UNIT(minor(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( minor(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 ) { return( EINVAL ); /* XXX or ENXIO ? */ } /* * */ int bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) { bktr_ptr_t bktr; int unit; unit = UNIT(minor(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->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ return( ENOMEM ); switch ( FUNCTION( minor(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 ); } /* * */ int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) { int unit; bktr_ptr_t bktr; unit = UNIT(minor(dev)); if (FUNCTION(minor(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 ); return( i386_btop(vtophys(bktr->bigbuf) + offset) ); } int bktr_poll( dev_t dev, int events, struct proc *p) { int unit; bktr_ptr_t bktr; int revents = 0; unit = UNIT(minor(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); } disable_intr(); if (events & (POLLIN | POLLRDNORM)) { switch ( FUNCTION( minor(dev) ) ) { case VBI_DEV: if(bktr->vbisize == 0) selrecord(p, &bktr->vbi_select); else revents |= events & (POLLIN | POLLRDNORM); break; } } enable_intr(); return (revents); } #endif /* FreeBSD 4.x specific kernel interface routines */ /**********************************/ /* *** FreeBSD 2.2.x and 3.x *** */ /**********************************/ #if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) static bktr_reg_t brooktree[ NBKTR ]; static const char* bktr_probe( pcici_t tag, pcidi_t type ); static void bktr_attach( pcici_t tag, int unit ); static void bktr_intr(void *arg) { common_bktr_intr(arg); } static u_long bktr_count; static struct pci_device bktr_device = { "bktr", bktr_probe, bktr_attach, &bktr_count }; DATA_SET (pcidevice_set, bktr_device); 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; #define CDEV_MAJOR 92 static struct cdevsw bktr_cdevsw = { bktr_open, bktr_close, bktr_read, bktr_write, bktr_ioctl, nostop, nullreset, nodevtotty, bktr_poll, bktr_mmap, NULL, "bktr", NULL, -1 }; static int bktr_devsw_installed; static void bktr_drvinit( void *unused ) { dev_t dev; if ( ! bktr_devsw_installed ) { dev = makedev(CDEV_MAJOR, 0); cdevsw_add(&dev,&bktr_cdevsw, NULL); bktr_devsw_installed = 1; } } SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) /* * the boot time probe routine. */ static const char* bktr_probe( pcici_t tag, pcidi_t type ) { unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; switch (type) { case BROOKTREE_848_PCI_ID: if (rev == 0x12) return("BrookTree 848A"); else return("BrookTree 848"); case BROOKTREE_849_PCI_ID: return("BrookTree 849A"); case BROOKTREE_878_PCI_ID: return("BrookTree 878"); case BROOKTREE_879_PCI_ID: return("BrookTree 879"); }; return ((char *)0); } /* * the attach routine. */ static void bktr_attach( pcici_t tag, int unit ) { bktr_ptr_t bktr; bt848_ptr_t bt848; u_long latency; u_long fun; unsigned int rev; #ifdef BROOKTREE_IRQ u_long old_irq, new_irq; #endif bktr = &brooktree[unit]; if (unit >= NBKTR) { printf("brooktree%d: attach: only %d units configured.\n", unit, NBKTR); printf("brooktree%d: attach: invalid unit number.\n", unit); return; } /* Enable Memory Mapping */ fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); /* Enable Bus Mastering */ fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); bktr->tag = tag; /* * Map control/status registers */ pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &bktr->base, &bktr->phys_base ); /* * Disable the brooktree device */ bt848 = bktr->base; bt848->int_mask = ALL_INTS_DISABLED; bt848->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 /* * setup the interrupt handling routine */ pci_map_int(tag, bktr_intr, (void*) bktr, &net_imask); /* Update the Device Control Register */ /* on Bt878 and Bt879 cards */ fun = pci_conf_read(tag, 0x40); 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_conf_write(tag, 0x40, fun); /* XXX call bt848_i2c dependent attach() routine */ #if (NSMBUS > 0) if (bt848_i2c_attach(unit, bktr->base, &bktr->i2c_sc)) 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_conf_read(tag, PCI_LATENCY_TIMER); 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_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); } if ( bootverbose ) { printf(" %d.\n", (int) latency); } /* read the pci device id and revision id */ fun = pci_conf_read(tag, PCI_ID_REG); rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; /* call the common attach code */ common_bktr_attach( bktr, unit, fun, rev ); #ifdef DEVFS /* XXX This just throw away the token, which should probably be fixed when DEVFS is finally made really operational. */ devfs_add_devswf(&bktr_cdevsw, unit, DV_CHR, 0, 0, 0444, "bktr%d", unit); devfs_add_devswf(&bktr_cdevsw, unit+16, DV_CHR, 0, 0, 0444, "tuner%d", unit); devfs_add_devswf(&bktr_cdevsw, unit+32, DV_CHR, 0, 0, 0444, "vbi%d", unit); #endif /* DEVFS */ } /* * Special Memory Allocation */ vm_offset_t get_bktr_mem( int unit, unsigned size ) { vm_offset_t addr = 0; addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); if (addr == 0) addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, PAGE_SIZE); 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) & 0x0f) /* * */ int bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) { bktr_ptr_t bktr; int unit; unit = UNIT( minor(dev) ); if (unit >= NBKTR) /* unit out of range */ return( ENXIO ); bktr = &(brooktree[ unit ]); if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ return( ENXIO ); 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 ) && ((bt848_reverse_mute & 0xff) < Bt848_MAX_TUNER) ) { bktr->reverse_mute = bt848_reverse_mute & 0xff; bt848_reverse_mute = -1; } } switch ( FUNCTION( minor(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 proc *p ) { bktr_ptr_t bktr; int unit; unit = UNIT( minor(dev) ); if (unit >= NBKTR) /* unit out of range */ return( ENXIO ); bktr = &(brooktree[ unit ]); switch ( FUNCTION( minor(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(minor(dev)); if (unit >= NBKTR) /* unit out of range */ return( ENXIO ); bktr = &(brooktree[unit]); switch ( FUNCTION( minor(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 ) { return( EINVAL ); /* XXX or ENXIO ? */ } /* * */ int bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) { bktr_ptr_t bktr; int unit; unit = UNIT(minor(dev)); if (unit >= NBKTR) /* unit out of range */ return( ENXIO ); bktr = &(brooktree[ unit ]); if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ return( ENOMEM ); switch ( FUNCTION( minor(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 ); } /* * bktr_mmap. * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually * edit the line below and change "vm_offset_t" to "int" */ int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) { int unit; bktr_ptr_t bktr; unit = UNIT(minor(dev)); if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) return( -1 ); bktr = &(brooktree[ unit ]); if (nprot & PROT_EXEC) return( -1 ); if (offset < 0) return( -1 ); if (offset >= bktr->alloc_pages * PAGE_SIZE) return( -1 ); return( i386_btop(vtophys(bktr->bigbuf) + offset) ); } int bktr_poll( dev_t dev, int events, struct proc *p) { int unit; bktr_ptr_t bktr; int revents = 0; unit = UNIT(minor(dev)); if (unit >= NBKTR) return( -1 ); bktr = &(brooktree[ unit ]); disable_intr(); if (events & (POLLIN | POLLRDNORM)) { switch ( FUNCTION( minor(dev) ) ) { case VBI_DEV: if(bktr->vbisize == 0) selrecord(p, &bktr->vbi_select); else revents |= events & (POLLIN | POLLRDNORM); break; } } enable_intr(); return (revents); } #endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ /*****************/ /* *** BSDI *** */ /*****************/ #if defined(__bsdi__) #endif /* __bsdi__ BSDI specific kernel interface routines */ /*****************************/ /* *** OpenBSD / NetBSD *** */ /*****************************/ #if defined(__NetBSD__) || defined(__OpenBSD__) #endif /* __NetBSD__ || __OpenBSD__ */