4 * This is part of the Driver for Video Capture Cards (Frame grabbers)
5 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
7 * Copyright Roger Hardiman and Amancio Hasty.
9 * bktr_core : This deals with the Bt848/849/878/879 PCI Frame Grabber,
10 * Handles all the open, close, ioctl and read userland calls.
11 * Sets the Bt848 registers and generates RISC pograms.
12 * Controls the i2c bus and GPIO interface.
13 * Contains the interface to the kernel.
14 * (eg probe/attach and open/close/ioctl)
19 * 1. Redistributions of source code must retain the
20 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
21 * All rights reserved.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the above copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * This product includes software developed by Amancio Hasty and
35 * 4. The name of the author may not be used to endorse or promote products
36 * derived from this software without specific prior written permission.
38 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
40 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
41 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
42 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
43 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
44 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
46 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
47 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
48 * POSSIBILITY OF SUCH DAMAGE.
52 int i2cWrite( bktr_ptr_t bktr, int addr, int byte1, int byte2 );
53 int i2cRead( bktr_ptr_t bktr, int addr );
55 void msp_dpl_reset( bktr_ptr_t bktr, int i2d_addr );
56 unsigned int msp_dpl_read( bktr_ptr_t bktr, int i2c_addr, unsigned char dev, unsigned int addr );
57 void msp_dpl_write( bktr_ptr_t bktr, int i2c_addr, unsigned char dev,
58 unsigned int addr, unsigned int data );
62 * Defines for userland processes blocked in this driver
63 * For /dev/bktr[n] use memory address of bktr structure
64 * For /dev/vbi[n] use memory address of bktr structure + 1
65 * this is ok as the bktr structure is > 1 byte
67 #define BKTR_SLEEP ((caddr_t)bktr )
68 #define VBI_SLEEP ((caddr_t)bktr + 1)
71 /* device name for printf */
72 const char *bktr_name(bktr_ptr_t bktr);
74 /* Prototypes for attatch and interrupt functions */
75 void common_bktr_attach( bktr_ptr_t bktr, int unit,
76 u_long pci_id, u_int rev );
77 int common_bktr_intr( void *arg );
80 /* Prototypes for open, close, read, mmap and ioctl calls */
81 int video_open( bktr_ptr_t bktr );
82 int video_close( bktr_ptr_t bktr );
83 int video_read( bktr_ptr_t bktr, int unit, dev_t dev, struct uio *uio );
84 int video_ioctl( bktr_ptr_t bktr, int unit,
85 ioctl_cmd_t cmd, caddr_t arg, struct thread* pr );
88 int tuner_open( bktr_ptr_t bktr );
89 int tuner_close( bktr_ptr_t bktr );
90 int tuner_ioctl( bktr_ptr_t bktr, int unit,
91 ioctl_cmd_t cmd, caddr_t arg, struct thread* pr );
93 int vbi_open( bktr_ptr_t bktr );
94 int vbi_close( bktr_ptr_t bktr );
95 int vbi_read( bktr_ptr_t bktr, struct uio *uio, int ioflag );