753d64dfbb
Make tuner on French SECAM Hauppauge cards work Submitted by: Cyrille Lefevre <clefevre@citeweb.net> Fix clipping bugs ready for Xv support in XFree86 4.0 Submitted by: Thomas Mueller <tmueller@thmu.de> Fix the 'feature' where /dev/vbi needed to be opened before /dev/bktr when using Teletext with Alevt and FXTV. Requested by: Randall Hopper
975 lines
28 KiB
C
975 lines
28 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_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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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/vnode.h>
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#include <machine/clock.h> /* for DELAY */
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#include <pci/pcivar.h>
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#include <machine/ioctl_meteor.h>
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#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
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#include <dev/bktr/bktr_reg.h>
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#include <dev/bktr/bktr_tuner.h>
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#include <dev/bktr/bktr_card.h>
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#include <dev/bktr/bktr_core.h>
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#if defined( TUNER_AFC )
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#define AFC_DELAY 10000 /* 10 millisend delay */
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#define AFC_BITS 0x07
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#define AFC_FREQ_MINUS_125 0x00
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#define AFC_FREQ_MINUS_62 0x01
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#define AFC_FREQ_CENTERED 0x02
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#define AFC_FREQ_PLUS_62 0x03
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#define AFC_FREQ_PLUS_125 0x04
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#define AFC_MAX_STEP (5 * FREQFACTOR) /* no more than 5 MHz */
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#endif /* TUNER_AFC */
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#define TTYPE_XXX 0
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#define TTYPE_NTSC 1
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#define TTYPE_NTSC_J 2
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#define TTYPE_PAL 3
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#define TTYPE_PAL_M 4
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#define TTYPE_PAL_N 5
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#define TTYPE_SECAM 6
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#define TSA552x_CB_MSB (0x80)
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#define TSA552x_CB_CP (1<<6) /* set this for fast tuning */
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#define TSA552x_CB_T2 (1<<5) /* test mode - Normally set to 0 */
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#define TSA552x_CB_T1 (1<<4) /* test mode - Normally set to 0 */
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#define TSA552x_CB_T0 (1<<3) /* test mode - Normally set to 1 */
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#define TSA552x_CB_RSA (1<<2) /* 0 for 31.25 khz, 1 for 62.5 kHz */
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#define TSA552x_CB_RSB (1<<1) /* 0 for FM 50kHz steps, 1 = Use RSA*/
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#define TSA552x_CB_OS (1<<0) /* Set to 0 for normal operation */
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#define TSA552x_RADIO (TSA552x_CB_MSB | \
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TSA552x_CB_T0)
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/* raise the charge pump voltage for fast tuning */
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#define TSA552x_FCONTROL (TSA552x_CB_MSB | \
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TSA552x_CB_CP | \
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TSA552x_CB_T0 | \
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TSA552x_CB_RSA | \
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TSA552x_CB_RSB)
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/* lower the charge pump voltage for better residual oscillator FM */
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#define TSA552x_SCONTROL (TSA552x_CB_MSB | \
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TSA552x_CB_T0 | \
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TSA552x_CB_RSA | \
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TSA552x_CB_RSB)
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/* The control value for the ALPS TSCH5 Tuner */
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#define TSCH5_FCONTROL 0x82
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#define TSCH5_RADIO 0x86
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/* The control value for the ALPS TSBH1 Tuner */
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#define TSBH1_FCONTROL 0xce
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static const struct TUNER tuners[] = {
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/* XXX FIXME: fill in the band-switch crosspoints */
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/* NO_TUNER */
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{ "<no>", /* the 'name' */
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TTYPE_XXX, /* input type */
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{ 0x00, /* control byte for Tuner PLL */
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0x00,
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0x00,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0x00, 0x00, 0x00,0x00} }, /* the band-switch values */
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/* TEMIC_NTSC */
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{ "Temic NTSC", /* the 'name' */
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TTYPE_NTSC, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00}, /* band-switch crosspoints */
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{ 0x02, 0x04, 0x01, 0x00 } }, /* the band-switch values */
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/* TEMIC_PAL */
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{ "Temic PAL", /* the 'name' */
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TTYPE_PAL, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0x02, 0x04, 0x01, 0x00 } }, /* the band-switch values */
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/* TEMIC_SECAM */
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{ "Temic SECAM", /* the 'name' */
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TTYPE_SECAM, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0x02, 0x04, 0x01,0x00 } }, /* the band-switch values */
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/* PHILIPS_NTSC */
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{ "Philips NTSC", /* the 'name' */
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TTYPE_NTSC, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */
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/* PHILIPS_PAL */
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{ "Philips PAL", /* the 'name' */
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TTYPE_PAL, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */
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/* PHILIPS_SECAM */
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{ "Philips SECAM", /* the 'name' */
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TTYPE_SECAM, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0xa7, 0x97, 0x37, 0x00 } }, /* the band-switch values */
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/* TEMIC_PAL I */
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{ "Temic PAL I", /* the 'name' */
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TTYPE_PAL, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0x02, 0x04, 0x01,0x00 } }, /* the band-switch values */
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/* PHILIPS_PALI */
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{ "Philips PAL I", /* the 'name' */
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TTYPE_PAL, /* input type */
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{ TSA552x_SCONTROL, /* control byte for Tuner PLL */
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TSA552x_SCONTROL,
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TSA552x_SCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0xa0, 0x90, 0x30,0x00 } }, /* the band-switch values */
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/* PHILIPS_FR1236_NTSC */
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{ "Philips FR1236 NTSC FM", /* the 'name' */
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TTYPE_NTSC, /* input type */
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{ TSA552x_FCONTROL, /* control byte for Tuner PLL */
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TSA552x_FCONTROL,
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TSA552x_FCONTROL,
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TSA552x_RADIO },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0xa0, 0x90, 0x30,0xa4 } }, /* the band-switch values */
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/* PHILIPS_FR1216_PAL */
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{ "Philips FR1216 PAL FM" , /* the 'name' */
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TTYPE_PAL, /* input type */
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{ TSA552x_FCONTROL, /* control byte for Tuner PLL */
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TSA552x_FCONTROL,
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TSA552x_FCONTROL,
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TSA552x_RADIO },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0xa0, 0x90, 0x30, 0xa4 } }, /* the band-switch values */
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/* PHILIPS_FR1236_SECAM */
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{ "Philips FR1236 SECAM FM", /* the 'name' */
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TTYPE_SECAM, /* input type */
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{ TSA552x_FCONTROL, /* control byte for Tuner PLL */
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TSA552x_FCONTROL,
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TSA552x_FCONTROL,
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TSA552x_RADIO },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0xa7, 0x97, 0x37, 0xa4 } }, /* the band-switch values */
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/* ALPS TSCH5 NTSC */
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{ "ALPS TSCH5 NTSC FM", /* the 'name' */
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TTYPE_NTSC, /* input type */
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{ TSCH5_FCONTROL, /* control byte for Tuner PLL */
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TSCH5_FCONTROL,
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TSCH5_FCONTROL,
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TSCH5_RADIO },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0x14, 0x12, 0x11, 0x04 } }, /* the band-switch values */
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/* ALPS TSBH1 NTSC */
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{ "ALPS TSBH1 NTSC", /* the 'name' */
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TTYPE_NTSC, /* input type */
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{ TSBH1_FCONTROL, /* control byte for Tuner PLL */
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TSBH1_FCONTROL,
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TSBH1_FCONTROL,
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0x00 },
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{ 0x00, 0x00 }, /* band-switch crosspoints */
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{ 0x01, 0x02, 0x08, 0x00 } } /* the band-switch values */
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};
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/* scaling factor for frequencies expressed as ints */
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#define FREQFACTOR 16
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/*
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* Format:
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* entry 0: MAX legal channel
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* entry 1: IF frequency
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* expressed as fi{mHz} * 16,
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* eg 45.75mHz == 45.75 * 16 = 732
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* entry 2: [place holder/future]
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* entry 3: base of channel record 0
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* entry 3 + (x*3): base of channel record 'x'
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* entry LAST: NULL channel entry marking end of records
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*
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* Record:
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* int 0: base channel
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* int 1: frequency of base channel,
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* expressed as fb{mHz} * 16,
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* int 2: offset frequency between channels,
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* expressed as fo{mHz} * 16,
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*/
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/*
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* North American Broadcast Channels:
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*
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* 2: 55.25 mHz - 4: 67.25 mHz
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* 5: 77.25 mHz - 6: 83.25 mHz
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* 7: 175.25 mHz - 13: 211.25 mHz
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* 14: 471.25 mHz - 83: 885.25 mHz
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*
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* IF freq: 45.75 mHz
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*/
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#define OFFSET 6.00
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static int nabcst[] = {
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83, (int)( 45.75 * FREQFACTOR), 0,
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14, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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0
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};
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#undef OFFSET
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/*
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* North American Cable Channels, IRC:
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*
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* 2: 55.25 mHz - 4: 67.25 mHz
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* 5: 77.25 mHz - 6: 83.25 mHz
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* 7: 175.25 mHz - 13: 211.25 mHz
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* 14: 121.25 mHz - 22: 169.25 mHz
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* 23: 217.25 mHz - 94: 643.25 mHz
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* 95: 91.25 mHz - 99: 115.25 mHz
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*
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* IF freq: 45.75 mHz
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*/
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#define OFFSET 6.00
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static int irccable[] = {
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99, (int)( 45.75 * FREQFACTOR), 0,
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95, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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23, (int)(217.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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14, (int)(121.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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0
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};
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#undef OFFSET
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/*
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* North American Cable Channels, HRC:
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*
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* 2: 54 mHz - 4: 66 mHz
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* 5: 78 mHz - 6: 84 mHz
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* 7: 174 mHz - 13: 210 mHz
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* 14: 120 mHz - 22: 168 mHz
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* 23: 216 mHz - 94: 642 mHz
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* 95: 90 mHz - 99: 114 mHz
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*
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* IF freq: 45.75 mHz
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*/
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#define OFFSET 6.00
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static int hrccable[] = {
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99, (int)( 45.75 * FREQFACTOR), 0,
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95, (int)( 90.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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23, (int)(216.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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14, (int)(120.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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7, (int)(174.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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5, (int)( 78.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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2, (int)( 54.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
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0
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};
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#undef OFFSET
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/*
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* Western European broadcast channels:
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*
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* (there are others that appear to vary between countries - rmt)
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*
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* here's the table Philips provides:
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* caution, some of the offsets don't compute...
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*
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* 1 4525 700 N21
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*
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* 2 4825 700 E2
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* 3 5525 700 E3
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* 4 6225 700 E4
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*
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* 5 17525 700 E5
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* 6 18225 700 E6
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* 7 18925 700 E7
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* 8 19625 700 E8
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* 9 20325 700 E9
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* 10 21025 700 E10
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* 11 21725 700 E11
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* 12 22425 700 E12
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*
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* 13 5375 700 ITA
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* 14 6225 700 ITB
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*
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* 15 8225 700 ITC
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*
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* 16 17525 700 ITD
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* 17 18325 700 ITE
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*
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* 18 19225 700 ITF
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* 19 20125 700 ITG
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* 20 21025 700 ITH
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*
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* 21 47125 800 E21
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* 22 47925 800 E22
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* 23 48725 800 E23
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* 24 49525 800 E24
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* 25 50325 800 E25
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* 26 51125 800 E26
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* 27 51925 800 E27
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* 28 52725 800 E28
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* 29 53525 800 E29
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* 30 54325 800 E30
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* 31 55125 800 E31
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* 32 55925 800 E32
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* 33 56725 800 E33
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* 34 57525 800 E34
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* 35 58325 800 E35
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* 36 59125 800 E36
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* 37 59925 800 E37
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* 38 60725 800 E38
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* 39 61525 800 E39
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* 40 62325 800 E40
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* 41 63125 800 E41
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* 42 63925 800 E42
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* 43 64725 800 E43
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* 44 65525 800 E44
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* 45 66325 800 E45
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* 46 67125 800 E46
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* 47 67925 800 E47
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* 48 68725 800 E48
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* 49 69525 800 E49
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* 50 70325 800 E50
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* 51 71125 800 E51
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* 52 71925 800 E52
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* 53 72725 800 E53
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* 54 73525 800 E54
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* 55 74325 800 E55
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* 56 75125 800 E56
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* 57 75925 800 E57
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* 58 76725 800 E58
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* 59 77525 800 E59
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* 60 78325 800 E60
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* 61 79125 800 E61
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* 62 79925 800 E62
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* 63 80725 800 E63
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* 64 81525 800 E64
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* 65 82325 800 E65
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* 66 83125 800 E66
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* 67 83925 800 E67
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* 68 84725 800 E68
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* 69 85525 800 E69
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*
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* 70 4575 800 IA
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* 71 5375 800 IB
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* 72 6175 800 IC
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*
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* 74 6925 700 S01
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* 75 7625 700 S02
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* 76 8325 700 S03
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*
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* 80 10525 700 S1
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* 81 11225 700 S2
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* 82 11925 700 S3
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* 83 12625 700 S4
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* 84 13325 700 S5
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* 85 14025 700 S6
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* 86 14725 700 S7
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* 87 15425 700 S8
|
|
* 88 16125 700 S9
|
|
* 89 16825 700 S10
|
|
* 90 23125 700 S11
|
|
* 91 23825 700 S12
|
|
* 92 24525 700 S13
|
|
* 93 25225 700 S14
|
|
* 94 25925 700 S15
|
|
* 95 26625 700 S16
|
|
* 96 27325 700 S17
|
|
* 97 28025 700 S18
|
|
* 98 28725 700 S19
|
|
* 99 29425 700 S20
|
|
*
|
|
*
|
|
* Channels S21 - S41 are taken from
|
|
* http://gemma.apple.com:80/dev/technotes/tn/tn1012.html
|
|
*
|
|
* 100 30325 800 S21
|
|
* 101 31125 800 S22
|
|
* 102 31925 800 S23
|
|
* 103 32725 800 S24
|
|
* 104 33525 800 S25
|
|
* 105 34325 800 S26
|
|
* 106 35125 800 S27
|
|
* 107 35925 800 S28
|
|
* 108 36725 800 S29
|
|
* 109 37525 800 S30
|
|
* 110 38325 800 S31
|
|
* 111 39125 800 S32
|
|
* 112 39925 800 S33
|
|
* 113 40725 800 S34
|
|
* 114 41525 800 S35
|
|
* 115 42325 800 S36
|
|
* 116 43125 800 S37
|
|
* 117 43925 800 S38
|
|
* 118 44725 800 S39
|
|
* 119 45525 800 S40
|
|
* 120 46325 800 S41
|
|
*
|
|
* 121 3890 000 IFFREQ
|
|
*
|
|
*/
|
|
static int weurope[] = {
|
|
121, (int)( 38.90 * FREQFACTOR), 0,
|
|
100, (int)(303.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
90, (int)(231.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR),
|
|
80, (int)(105.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR),
|
|
74, (int)( 69.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR),
|
|
21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
17, (int)(183.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR),
|
|
16, (int)(175.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR),
|
|
15, (int)(82.25 * FREQFACTOR), (int)(8.50 * FREQFACTOR),
|
|
13, (int)(53.75 * FREQFACTOR), (int)(8.50 * FREQFACTOR),
|
|
5, (int)(175.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR),
|
|
2, (int)(48.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR),
|
|
0
|
|
};
|
|
|
|
/*
|
|
* Japanese Broadcast Channels:
|
|
*
|
|
* 1: 91.25MHz - 3: 103.25MHz
|
|
* 4: 171.25MHz - 7: 189.25MHz
|
|
* 8: 193.25MHz - 12: 217.25MHz (VHF)
|
|
* 13: 471.25MHz - 62: 765.25MHz (UHF)
|
|
*
|
|
* IF freq: 45.75 mHz
|
|
* OR
|
|
* IF freq: 58.75 mHz
|
|
*/
|
|
#define OFFSET 6.00
|
|
#define IF_FREQ 45.75
|
|
static int jpnbcst[] = {
|
|
62, (int)(IF_FREQ * FREQFACTOR), 0,
|
|
13, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
0
|
|
};
|
|
#undef IF_FREQ
|
|
#undef OFFSET
|
|
|
|
/*
|
|
* Japanese Cable Channels:
|
|
*
|
|
* 1: 91.25MHz - 3: 103.25MHz
|
|
* 4: 171.25MHz - 7: 189.25MHz
|
|
* 8: 193.25MHz - 12: 217.25MHz
|
|
* 13: 109.25MHz - 21: 157.25MHz
|
|
* 22: 165.25MHz
|
|
* 23: 223.25MHz - 63: 463.25MHz
|
|
*
|
|
* IF freq: 45.75 mHz
|
|
*/
|
|
#define OFFSET 6.00
|
|
#define IF_FREQ 45.75
|
|
static int jpncable[] = {
|
|
63, (int)(IF_FREQ * FREQFACTOR), 0,
|
|
23, (int)(223.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
22, (int)(165.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
13, (int)(109.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
0
|
|
};
|
|
#undef IF_FREQ
|
|
#undef OFFSET
|
|
|
|
/*
|
|
* xUSSR Broadcast Channels:
|
|
*
|
|
* 1: 49.75MHz - 2: 59.25MHz
|
|
* 3: 77.25MHz - 5: 93.25MHz
|
|
* 6: 175.25MHz - 12: 223.25MHz
|
|
* 13-20 - not exist
|
|
* 21: 471.25MHz - 34: 575.25MHz
|
|
* 35: 583.25MHz - 69: 855.25MHz
|
|
*
|
|
* Cable channels
|
|
*
|
|
* 70: 111.25MHz - 77: 167.25MHz
|
|
* 78: 231.25MHz -107: 463.25MHz
|
|
*
|
|
* IF freq: 38.90 MHz
|
|
*/
|
|
#define IF_FREQ 38.90
|
|
static int xussr[] = {
|
|
107, (int)(IF_FREQ * FREQFACTOR), 0,
|
|
78, (int)(231.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
70, (int)(111.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
35, (int)(583.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
6, (int)(175.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
3, (int)( 77.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR),
|
|
1, (int)( 49.75 * FREQFACTOR), (int)(9.50 * FREQFACTOR),
|
|
0
|
|
};
|
|
#undef IF_FREQ
|
|
|
|
/*
|
|
* Australian broadcast channels
|
|
*/
|
|
#define OFFSET 7.00
|
|
static int australia[] = {
|
|
83, (int)( 45.00 * FREQFACTOR), 0,
|
|
28, (int)(521.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
/* ch 14?? what's this, cable? Air channels are 0-11 and 28-69 */
|
|
14, (int)(471.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
10, (int)(203.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
6, (int)(169.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
4, (int)( 89.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
3, (int)( 80.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
1, (int)( 51.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
|
|
0
|
|
};
|
|
#undef OFFSET
|
|
|
|
static struct {
|
|
int *ptr;
|
|
char name[BT848_MAX_CHNLSET_NAME_LEN];
|
|
} freqTable[] = {
|
|
{NULL, ""},
|
|
{nabcst, "nabcst"},
|
|
{irccable, "cableirc"},
|
|
{hrccable, "cablehrc"},
|
|
{weurope, "weurope"},
|
|
{jpnbcst, "jpnbcst"},
|
|
{jpncable, "jpncable"},
|
|
{xussr, "xussr"},
|
|
{australia, "australia"},
|
|
|
|
};
|
|
|
|
#define TBL_CHNL freqTable[ bktr->tuner.chnlset ].ptr[ x ]
|
|
#define TBL_BASE_FREQ freqTable[ bktr->tuner.chnlset ].ptr[ x + 1 ]
|
|
#define TBL_OFFSET freqTable[ bktr->tuner.chnlset ].ptr[ x + 2 ]
|
|
static int
|
|
frequency_lookup( bktr_ptr_t bktr, int channel )
|
|
{
|
|
int x;
|
|
|
|
/* check for "> MAX channel" */
|
|
x = 0;
|
|
if ( channel > TBL_CHNL )
|
|
return( -1 );
|
|
|
|
/* search the table for data */
|
|
for ( x = 3; TBL_CHNL; x += 3 ) {
|
|
if ( channel >= TBL_CHNL ) {
|
|
return( TBL_BASE_FREQ +
|
|
((channel - TBL_CHNL) * TBL_OFFSET) );
|
|
}
|
|
}
|
|
|
|
/* not found, must be below the MIN channel */
|
|
return( -1 );
|
|
}
|
|
#undef TBL_OFFSET
|
|
#undef TBL_BASE_FREQ
|
|
#undef TBL_CHNL
|
|
|
|
|
|
#define TBL_IF freqTable[ bktr->tuner.chnlset ].ptr[ 1 ]
|
|
|
|
|
|
/* Initialise the tuner structures in the bktr_softc */
|
|
/* This is needed as the tuner details are no longer globally declared */
|
|
|
|
void select_tuner( bktr_ptr_t bktr, int tuner_type ) {
|
|
if (tuner_type < Bt848_MAX_TUNER) {
|
|
bktr->card.tuner = &tuners[ tuner_type ];
|
|
} else {
|
|
bktr->card.tuner = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Tuner Notes:
|
|
* Programming the tuner properly is quite complicated.
|
|
* Here are some notes, based on a FM1246 data sheet for a PAL-I tuner.
|
|
* The tuner (front end) covers 45.75 Mhz - 855.25 Mhz and an FM band of
|
|
* 87.5 Mhz to 108.0 Mhz.
|
|
*
|
|
* RF and IF. RF = radio frequencies, it is the transmitted signal.
|
|
* IF is the Intermediate Frequency (the offset from the base
|
|
* signal where the video, color, audio and NICAM signals are.
|
|
*
|
|
* Eg, Picture at 38.9 Mhz, Colour at 34.47 MHz, sound at 32.9 MHz
|
|
* NICAM at 32.348 Mhz.
|
|
* Strangely enough, there is an IF (intermediate frequency) for
|
|
* FM Radio which is 10.7 Mhz.
|
|
*
|
|
* The tuner also works in Bands. Philips bands are
|
|
* FM radio band 87.50 to 108.00 MHz
|
|
* Low band 45.75 to 170.00 MHz
|
|
* Mid band 170.00 to 450.00 MHz
|
|
* High band 450.00 to 855.25 MHz
|
|
*
|
|
*
|
|
* Now we need to set the PLL on the tuner to the required freuqncy.
|
|
* It has a programmable divisor.
|
|
* For TV we want
|
|
* N = 16 (freq RF(pc) + freq IF(pc)) pc is picture carrier and RF and IF
|
|
* are in MHz.
|
|
|
|
* For RADIO we want a different equation.
|
|
* freq IF is 10.70 MHz (so the data sheet tells me)
|
|
* N = (freq RF + freq IF) / step size
|
|
* The step size must be set to 50 khz (so the data sheet tells me)
|
|
* (note this is 50 kHz, the other things are in MHz)
|
|
* so we end up with N = 20x(freq RF + 10.7)
|
|
*
|
|
*/
|
|
|
|
#define LOW_BAND 0
|
|
#define MID_BAND 1
|
|
#define HIGH_BAND 2
|
|
#define FM_RADIO_BAND 3
|
|
|
|
|
|
/* Check if these are correct for other than Philips PAL */
|
|
#define STATUSBIT_COLD 0x80
|
|
#define STATUSBIT_LOCK 0x40
|
|
#define STATUSBIT_TV 0x20
|
|
#define STATUSBIT_STEREO 0x10 /* valid if FM (aka not TV) */
|
|
#define STATUSBIT_ADC 0x07
|
|
|
|
/*
|
|
* set the frequency of the tuner
|
|
* If 'type' is TV_FREQUENCY, the frequency is freq MHz*16
|
|
* If 'type' is FM_RADIO_FREQUENCY, the frequency is freq MHz * 100
|
|
* (note *16 gives is 4 bits of fraction, eg steps of nnn.0625)
|
|
*
|
|
*/
|
|
int
|
|
tv_freq( bktr_ptr_t bktr, int frequency, int type )
|
|
{
|
|
const struct TUNER* tuner;
|
|
u_char addr;
|
|
u_char control;
|
|
u_char band;
|
|
int N;
|
|
int band_select = 0;
|
|
#if defined( TEST_TUNER_AFC )
|
|
int oldFrequency, afcDelta;
|
|
#endif
|
|
|
|
tuner = bktr->card.tuner;
|
|
if ( tuner == NULL )
|
|
return( -1 );
|
|
|
|
if (type == TV_FREQUENCY) {
|
|
/*
|
|
* select the band based on frequency
|
|
* XXX FIXME: get the cross-over points from the tuner struct
|
|
*/
|
|
if ( frequency < (160 * FREQFACTOR ) )
|
|
band_select = LOW_BAND;
|
|
else if ( frequency < (454 * FREQFACTOR ) )
|
|
band_select = MID_BAND;
|
|
else
|
|
band_select = HIGH_BAND;
|
|
|
|
#if defined( TEST_TUNER_AFC )
|
|
if ( bktr->tuner.afc )
|
|
frequency -= 4;
|
|
#endif
|
|
/*
|
|
* N = 16 * { fRF(pc) + fIF(pc) }
|
|
* or N = 16* fRF(pc) + 16*fIF(pc) }
|
|
* where:
|
|
* pc is picture carrier, fRF & fIF are in MHz
|
|
*
|
|
* fortunatly, frequency is passed in as MHz * 16
|
|
* and the TBL_IF frequency is also stored in MHz * 16
|
|
*/
|
|
N = frequency + TBL_IF;
|
|
|
|
/* set the address of the PLL */
|
|
addr = bktr->card.tuner_pllAddr;
|
|
control = tuner->pllControl[ band_select ];
|
|
band = tuner->bandAddrs[ band_select ];
|
|
|
|
if(!(band && control)) /* Don't try to set un- */
|
|
return(-1); /* supported modes. */
|
|
|
|
if ( frequency > bktr->tuner.frequency ) {
|
|
i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff );
|
|
i2cWrite( bktr, addr, control, band );
|
|
}
|
|
else {
|
|
i2cWrite( bktr, addr, control, band );
|
|
i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff );
|
|
}
|
|
|
|
#if defined( TUNER_AFC )
|
|
if ( bktr->tuner.afc == TRUE ) {
|
|
#if defined( TEST_TUNER_AFC )
|
|
oldFrequency = frequency;
|
|
#endif
|
|
if ( (N = do_afc( bktr, addr, N )) < 0 ) {
|
|
/* AFC failed, restore requested frequency */
|
|
N = frequency + TBL_IF;
|
|
#if defined( TEST_TUNER_AFC )
|
|
printf("do_afc: failed to lock\n");
|
|
#endif
|
|
i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff );
|
|
}
|
|
else
|
|
frequency = N - TBL_IF;
|
|
#if defined( TEST_TUNER_AFC )
|
|
printf("do_afc: returned freq %d (%d %% %d)\n", frequency, frequency / 16, frequency % 16);
|
|
afcDelta = frequency - oldFrequency;
|
|
printf("changed by: %d clicks (%d mod %d)\n", afcDelta, afcDelta / 16, afcDelta % 16);
|
|
#endif
|
|
}
|
|
#endif /* TUNER_AFC */
|
|
|
|
bktr->tuner.frequency = frequency;
|
|
}
|
|
|
|
if ( type == FM_RADIO_FREQUENCY ) {
|
|
band_select = FM_RADIO_BAND;
|
|
|
|
/*
|
|
* N = { fRF(pc) + fIF(pc) }/step_size
|
|
* The step size is 50kHz for FM radio.
|
|
* (eg after 102.35MHz comes 102.40 MHz)
|
|
* fIF is 10.7 MHz (as detailed in the specs)
|
|
*
|
|
* frequency is passed in as MHz * 100
|
|
*
|
|
* So, we have N = (frequency/100 + 10.70) /(50/1000)
|
|
*/
|
|
N = (frequency + 1070)/5;
|
|
|
|
/* set the address of the PLL */
|
|
addr = bktr->card.tuner_pllAddr;
|
|
control = tuner->pllControl[ band_select ];
|
|
band = tuner->bandAddrs[ band_select ];
|
|
|
|
if(!(band && control)) /* Don't try to set un- */
|
|
return(-1); /* supported modes. */
|
|
|
|
band |= bktr->tuner.radio_mode; /* tuner.radio_mode is set in
|
|
* the ioctls RADIO_SETMODE
|
|
* and RADIO_GETMODE */
|
|
|
|
i2cWrite( bktr, addr, control, band );
|
|
i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff );
|
|
|
|
bktr->tuner.frequency = (N * 5) - 1070;
|
|
|
|
|
|
}
|
|
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
|
|
|
|
#if defined( TUNER_AFC )
|
|
/*
|
|
*
|
|
*/
|
|
int
|
|
do_afc( bktr_ptr_t bktr, int addr, int frequency )
|
|
{
|
|
int step;
|
|
int status;
|
|
int origFrequency;
|
|
|
|
origFrequency = frequency;
|
|
|
|
/* wait for first setting to take effect */
|
|
tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 );
|
|
|
|
if ( (status = i2cRead( bktr, addr + 1 )) < 0 )
|
|
return( -1 );
|
|
|
|
#if defined( TEST_TUNER_AFC )
|
|
printf( "\nOriginal freq: %d, status: 0x%02x\n", frequency, status );
|
|
#endif
|
|
for ( step = 0; step < AFC_MAX_STEP; ++step ) {
|
|
if ( (status = i2cRead( bktr, addr + 1 )) < 0 )
|
|
goto fubar;
|
|
if ( !(status & 0x40) ) {
|
|
#if defined( TEST_TUNER_AFC )
|
|
printf( "no lock!\n" );
|
|
#endif
|
|
goto fubar;
|
|
}
|
|
|
|
switch( status & AFC_BITS ) {
|
|
case AFC_FREQ_CENTERED:
|
|
#if defined( TEST_TUNER_AFC )
|
|
printf( "Centered, freq: %d, status: 0x%02x\n", frequency, status );
|
|
#endif
|
|
return( frequency );
|
|
|
|
case AFC_FREQ_MINUS_125:
|
|
case AFC_FREQ_MINUS_62:
|
|
#if defined( TEST_TUNER_AFC )
|
|
printf( "Low, freq: %d, status: 0x%02x\n", frequency, status );
|
|
#endif
|
|
--frequency;
|
|
break;
|
|
|
|
case AFC_FREQ_PLUS_62:
|
|
case AFC_FREQ_PLUS_125:
|
|
#if defined( TEST_TUNER_AFC )
|
|
printf( "Hi, freq: %d, status: 0x%02x\n", frequency, status );
|
|
#endif
|
|
++frequency;
|
|
break;
|
|
}
|
|
|
|
i2cWrite( bktr, addr,
|
|
(frequency>>8) & 0x7f, frequency & 0xff );
|
|
DELAY( AFC_DELAY );
|
|
}
|
|
|
|
fubar:
|
|
i2cWrite( bktr, addr,
|
|
(origFrequency>>8) & 0x7f, origFrequency & 0xff );
|
|
|
|
return( -1 );
|
|
}
|
|
#endif /* TUNER_AFC */
|
|
#undef TBL_IF
|
|
|
|
|
|
/*
|
|
* Get the Tuner status and signal strength
|
|
*/
|
|
int get_tuner_status( bktr_ptr_t bktr ) {
|
|
return i2cRead( bktr, bktr->card.tuner_pllAddr + 1 );
|
|
}
|
|
|
|
/*
|
|
* set the channel of the tuner
|
|
*/
|
|
int
|
|
tv_channel( bktr_ptr_t bktr, int channel )
|
|
{
|
|
int frequency;
|
|
|
|
/* calculate the frequency according to tuner type */
|
|
if ( (frequency = frequency_lookup( bktr, channel )) < 0 )
|
|
return( -1 );
|
|
|
|
/* set the new frequency */
|
|
if ( tv_freq( bktr, frequency, TV_FREQUENCY ) < 0 )
|
|
return( -1 );
|
|
|
|
/* OK to update records */
|
|
return( (bktr->tuner.channel = channel) );
|
|
}
|
|
|
|
/*
|
|
* get channelset name
|
|
*/
|
|
int
|
|
tuner_getchnlset(struct bktr_chnlset *chnlset)
|
|
{
|
|
if (( chnlset->index < CHNLSET_MIN ) ||
|
|
( chnlset->index > CHNLSET_MAX ))
|
|
return( EINVAL );
|
|
|
|
memcpy(&chnlset->name, &freqTable[chnlset->index].name,
|
|
BT848_MAX_CHNLSET_NAME_LEN);
|
|
|
|
chnlset->max_channel=freqTable[chnlset->index].ptr[0];
|
|
return( 0 );
|
|
}
|