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b40ce4165d
Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
97 lines
3.9 KiB
C
97 lines
3.9 KiB
C
/* $FreeBSD$ */
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/*
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* This is part of the Driver for Video Capture Cards (Frame grabbers)
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* and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
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* chipset.
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* Copyright Roger Hardiman and Amancio Hasty.
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*
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* bktr_core : This deals with the Bt848/849/878/879 PCI Frame Grabber,
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* Handles all the open, close, ioctl and read userland calls.
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* Sets the Bt848 registers and generates RISC pograms.
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* Controls the i2c bus and GPIO interface.
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* Contains the interface to the kernel.
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* (eg probe/attach and open/close/ioctl)
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*
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*/
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/*
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* 1. Redistributions of source code must retain the
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* Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Amancio Hasty and
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* Roger Hardiman
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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int i2cWrite( bktr_ptr_t bktr, int addr, int byte1, int byte2 );
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int i2cRead( bktr_ptr_t bktr, int addr );
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void msp_dpl_reset( bktr_ptr_t bktr, int i2d_addr );
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unsigned int msp_dpl_read( bktr_ptr_t bktr, int i2c_addr, unsigned char dev, unsigned int addr );
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void msp_dpl_write( bktr_ptr_t bktr, int i2c_addr, unsigned char dev,
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unsigned int addr, unsigned int data );
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/*
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* Defines for userland processes blocked in this driver
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* For /dev/bktr[n] use memory address of bktr structure
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* For /dev/vbi[n] use memory address of bktr structure + 1
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* this is ok as the bktr structure is > 1 byte
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*/
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#define BKTR_SLEEP ((caddr_t)bktr )
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#define VBI_SLEEP ((caddr_t)bktr + 1)
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/* device name for printf */
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const char *bktr_name(bktr_ptr_t bktr);
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/* Prototypes for attatch and interrupt functions */
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void common_bktr_attach( bktr_ptr_t bktr, int unit,
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u_long pci_id, u_int rev );
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int common_bktr_intr( void *arg );
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/* Prototypes for open, close, read, mmap and ioctl calls */
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int video_open( bktr_ptr_t bktr );
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int video_close( bktr_ptr_t bktr );
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int video_read( bktr_ptr_t bktr, int unit, dev_t dev, struct uio *uio );
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int video_ioctl( bktr_ptr_t bktr, int unit,
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ioctl_cmd_t cmd, caddr_t arg, struct thread* pr );
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int tuner_open( bktr_ptr_t bktr );
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int tuner_close( bktr_ptr_t bktr );
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int tuner_ioctl( bktr_ptr_t bktr, int unit,
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ioctl_cmd_t cmd, caddr_t arg, struct thread* pr );
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int vbi_open( bktr_ptr_t bktr );
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int vbi_close( bktr_ptr_t bktr );
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int vbi_read( bktr_ptr_t bktr, struct uio *uio, int ioflag );
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