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, struct cdev *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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