1 /* $FreeBSD: src/sys/dev/bktr/bktr_core.h,v 1.5 2001/09/12 08:37:02 julian Exp $ */ 2 /* $DragonFly: src/sys/dev/video/bktr/bktr_core.h,v 1.4 2004/05/15 17:54:12 joerg Exp $ */ 3 4 /* 5 * This is part of the Driver for Video Capture Cards (Frame grabbers) 6 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 7 * chipset. 8 * Copyright Roger Hardiman and Amancio Hasty. 9 * 10 * bktr_core : This deals with the Bt848/849/878/879 PCI Frame Grabber, 11 * Handles all the open, close, ioctl and read userland calls. 12 * Sets the Bt848 registers and generates RISC pograms. 13 * Controls the i2c bus and GPIO interface. 14 * Contains the interface to the kernel. 15 * (eg probe/attach and open/close/ioctl) 16 * 17 */ 18 19 /* 20 * 1. Redistributions of source code must retain the 21 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 22 * All rights reserved. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions and the following disclaimer. 29 * 2. Redistributions in binary form must reproduce the above copyright 30 * notice, this list of conditions and the following disclaimer in the 31 * documentation and/or other materials provided with the distribution. 32 * 3. All advertising materials mentioning features or use of this software 33 * must display the following acknowledgement: 34 * This product includes software developed by Amancio Hasty and 35 * Roger Hardiman 36 * 4. The name of the author may not be used to endorse or promote products 37 * derived from this software without specific prior written permission. 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 40 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 41 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 42 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 43 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 44 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 45 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 48 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 49 * POSSIBILITY OF SUCH DAMAGE. 50 */ 51 52 53 int i2cWrite( bktr_ptr_t bktr, int addr, int byte1, int byte2 ); 54 int i2cRead( bktr_ptr_t bktr, int addr ); 55 56 void msp_dpl_reset( bktr_ptr_t bktr, int i2d_addr ); 57 unsigned int msp_dpl_read( bktr_ptr_t bktr, int i2c_addr, unsigned char dev, unsigned int addr ); 58 void msp_dpl_write( bktr_ptr_t bktr, int i2c_addr, unsigned char dev, 59 unsigned int addr, unsigned int data ); 60 61 62 /* 63 * Defines for userland processes blocked in this driver 64 * For /dev/bktr[n] use memory address of bktr structure 65 * For /dev/vbi[n] use memory address of bktr structure + 1 66 * this is ok as the bktr structure is > 1 byte 67 */ 68 #define BKTR_SLEEP ((caddr_t)bktr ) 69 #define VBI_SLEEP ((caddr_t)bktr + 1) 70 71 72 /* device name for printf */ 73 const char *bktr_name(bktr_ptr_t bktr); 74 75 /* Prototypes for attatch and interrupt functions */ 76 void common_bktr_attach( bktr_ptr_t bktr, int unit, 77 u_long pci_id, u_int rev ); 78 int common_bktr_intr( void *arg ); 79 80 81 /* Prototypes for open, close, read, mmap and ioctl calls */ 82 int video_open( bktr_ptr_t bktr ); 83 int video_close( bktr_ptr_t bktr ); 84 int video_read( bktr_ptr_t bktr, int unit, dev_t dev, struct uio *uio ); 85 int video_ioctl( bktr_ptr_t bktr, int unit, 86 ioctl_cmd_t cmd, caddr_t arg, struct thread* pr ); 87 88 89 int tuner_open( bktr_ptr_t bktr ); 90 int tuner_close( bktr_ptr_t bktr ); 91 int tuner_ioctl( bktr_ptr_t bktr, int unit, 92 ioctl_cmd_t cmd, caddr_t arg, struct thread* pr ); 93 94 int vbi_open( bktr_ptr_t bktr ); 95 int vbi_close( bktr_ptr_t bktr ); 96 int vbi_read( bktr_ptr_t bktr, struct uio *uio, int ioflag ); 97 98