104 lines
3.7 KiB
C
104 lines
3.7 KiB
C
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/* $FreeBSD$ */
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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_tuner : This deals with controlling the tuner fitted to TV cards.
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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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/* Definitions for Tuners */
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#define NO_TUNER 0
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#define TEMIC_NTSC 1
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#define TEMIC_PAL 2
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#define TEMIC_SECAM 3
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#define PHILIPS_NTSC 4
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#define PHILIPS_PAL 5
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#define PHILIPS_SECAM 6
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#define TEMIC_PALI 7
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#define PHILIPS_PALI 8
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#define PHILIPS_FR1236_NTSC 9 /* These have FM radio support */
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#define PHILIPS_FR1216_PAL 10 /* These have FM radio support */
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#define PHILIPS_FR1236_SECAM 11 /* These have FM radio support */
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#define ALPS_TSCH5 12
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#define ALPS_TSBH1 13
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#define Bt848_MAX_TUNER 14
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/* experimental code for Automatic Frequency Control */
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#define TUNER_AFC
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/*
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* Fill in the tuner entries in the bktr_softc based on the selected tuner
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* type (from the list of tuners above)
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*/
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void select_tuner( bktr_ptr_t bktr, int tuner_type );
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/*
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* The Channel Set maps TV channels eg Ch 36, Ch 51, onto frequencies
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* and is country specific.
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*/
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int tuner_getchnlset( struct bktr_chnlset *chnlset );
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/*
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* tv_channel sets the tuner to channel 'n' using the current Channel Set
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* tv_freq sets the tuner to a specific frequency for TV or for FM Radio
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* get_tuner_status can be used to get the signal strength.
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*/
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#define TV_FREQUENCY 0
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#define FM_RADIO_FREQUENCY 1
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int tv_channel( bktr_ptr_t bktr, int channel );
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int tv_freq( bktr_ptr_t bktr, int frequency, int type );
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int get_tuner_status( bktr_ptr_t bktr );
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#if defined( TUNER_AFC )
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int do_afc( bktr_ptr_t bktr, int addr, int frequency );
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#endif /* TUNER_AFC */
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/*
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* This is for start-up convenience only, NOT mandatory.
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*/
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#if !defined( DEFAULT_CHNLSET )
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#define DEFAULT_CHNLSET CHNLSET_WEUROPE
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#endif
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