475 строки
15 KiB
C
475 строки
15 KiB
C
/*
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* $Id: tuner-simple.c,v 1.10 2005/03/08 08:38:00 kraxel Exp $
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*
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* i2c tv tuner chip device driver
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* controls all those simple 4-control-bytes style tuners.
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*/
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/videodev.h>
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#include <media/tuner.h>
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/* ---------------------------------------------------------------------- */
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/* tv standard selection for Temic 4046 FM5
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this value takes the low bits of control byte 2
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from datasheet Rev.01, Feb.00
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standard BG I L L2 D
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picture IF 38.9 38.9 38.9 33.95 38.9
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sound 1 33.4 32.9 32.4 40.45 32.4
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sound 2 33.16
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NICAM 33.05 32.348 33.05 33.05
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*/
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#define TEMIC_SET_PAL_I 0x05
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#define TEMIC_SET_PAL_DK 0x09
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#define TEMIC_SET_PAL_L 0x0a // SECAM ?
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#define TEMIC_SET_PAL_L2 0x0b // change IF !
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#define TEMIC_SET_PAL_BG 0x0c
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/* tv tuner system standard selection for Philips FQ1216ME
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this value takes the low bits of control byte 2
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from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
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standard BG DK I L L`
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picture carrier 38.90 38.90 38.90 38.90 33.95
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colour 34.47 34.47 34.47 34.47 38.38
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sound 1 33.40 32.40 32.90 32.40 40.45
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sound 2 33.16 - - - -
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NICAM 33.05 33.05 32.35 33.05 39.80
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*/
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#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
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#define PHILIPS_SET_PAL_BGDK 0x09
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#define PHILIPS_SET_PAL_L2 0x0a
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#define PHILIPS_SET_PAL_L 0x0b
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/* system switching for Philips FI1216MF MK2
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from datasheet "1996 Jul 09",
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standard BG L L'
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picture carrier 38.90 38.90 33.95
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colour 34.47 34.37 38.38
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sound 1 33.40 32.40 40.45
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sound 2 33.16 - -
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NICAM 33.05 33.05 39.80
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*/
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#define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
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#define PHILIPS_MF_SET_PAL_L 0x03 // France
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#define PHILIPS_MF_SET_PAL_L2 0x02 // L'
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/* ---------------------------------------------------------------------- */
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struct tunertype
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{
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char *name;
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unsigned char Vendor;
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unsigned char Type;
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unsigned short thresh1; /* band switch VHF_LO <=> VHF_HI */
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unsigned short thresh2; /* band switch VHF_HI <=> UHF */
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unsigned char VHF_L;
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unsigned char VHF_H;
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unsigned char UHF;
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unsigned char config;
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unsigned short IFPCoff; /* 622.4=16*38.90 MHz PAL,
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732 =16*45.75 NTSCi,
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940 =16*58.75 NTSC-Japan
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704 =16*44 ATSC */
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};
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/*
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* The floats in the tuner struct are computed at compile time
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* by gcc and cast back to integers. Thus we don't violate the
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* "no float in kernel" rule.
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*/
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static struct tunertype tuners[] = {
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{ "Temic PAL (4002 FH5)", TEMIC, PAL,
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16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
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{ "Philips PAL_I (FI1246 and compatibles)", Philips, PAL_I,
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16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
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{ "Philips NTSC (FI1236,FM1236 and compatibles)", Philips, NTSC,
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16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
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{ "Philips (SECAM+PAL_BG) (FI1216MF, FM1216MF, FR1216MF)", Philips, SECAM,
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16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623},
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{ "NoTuner", NoTuner, NOTUNER,
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0,0,0x00,0x00,0x00,0x00,0x00},
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{ "Philips PAL_BG (FI1216 and compatibles)", Philips, PAL,
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16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
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{ "Temic NTSC (4032 FY5)", TEMIC, NTSC,
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16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
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{ "Temic PAL_I (4062 FY5)", TEMIC, PAL_I,
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16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
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{ "Temic NTSC (4036 FY5)", TEMIC, NTSC,
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16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
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{ "Alps HSBH1", TEMIC, NTSC,
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16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
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{ "Alps TSBE1",TEMIC,PAL,
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16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
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{ "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modulartech MM205 */
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16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
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{ "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
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16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
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{ "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
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16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
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{ "Temic PAL_BG (4006FH5)", TEMIC, PAL,
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16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
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{ "Alps TSCH6",Alps,NTSC,
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16*137.25,16*385.25,0x14,0x12,0x11,0x8e,732},
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{ "Temic PAL_DK (4016 FY5)",TEMIC,PAL,
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16*168.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
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{ "Philips NTSC_M (MK2)",Philips,NTSC,
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16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
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{ "Temic PAL_I (4066 FY5)", TEMIC, PAL_I,
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16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
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{ "Temic PAL* auto (4006 FN5)", TEMIC, PAL,
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16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
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{ "Temic PAL_BG (4009 FR5) or PAL_I (4069 FR5)", TEMIC, PAL,
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16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
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{ "Temic NTSC (4039 FR5)", TEMIC, NTSC,
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16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
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{ "Temic PAL/SECAM multi (4046 FM5)", TEMIC, PAL,
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16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
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{ "Philips PAL_DK (FI1256 and compatibles)", Philips, PAL,
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16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
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{ "Philips PAL/SECAM multi (FQ1216ME)", Philips, PAL,
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16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
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{ "LG PAL_I+FM (TAPC-I001D)", LGINNOTEK, PAL_I,
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16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
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{ "LG PAL_I (TAPC-I701D)", LGINNOTEK, PAL_I,
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16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
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{ "LG NTSC+FM (TPI8NSR01F)", LGINNOTEK, NTSC,
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16*210.00,16*497.00,0xa0,0x90,0x30,0x8e,732},
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{ "LG PAL_BG+FM (TPI8PSB01D)", LGINNOTEK, PAL,
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16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
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{ "LG PAL_BG (TPI8PSB11D)", LGINNOTEK, PAL,
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16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
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{ "Temic PAL* auto + FM (4009 FN5)", TEMIC, PAL,
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16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
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{ "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
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16*137.25,16*317.25,0x01,0x02,0x08,0x8e,940 },
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{ "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */
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16*169,16*464,0xA0,0x90,0x30,0x8e,623},
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{ "MT20xx universal", Microtune,PAL|NTSC,
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/* see mt20xx.c for details */ },
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{ "Temic PAL_BG (4106 FH5)", TEMIC, PAL,
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16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
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{ "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL,
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16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623},
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{ "Temic NTSC (4136 FY5)", TEMIC, NTSC,
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16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
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{ "LG PAL (newer TAPC series)", LGINNOTEK, PAL,
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16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623},
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{ "Philips PAL/SECAM multi (FM1216ME MK3)", Philips, PAL,
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16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
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{ "LG NTSC (newer TAPC series)", LGINNOTEK, NTSC,
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16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,732},
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{ "HITACHI V7-J180AT", HITACHI, NTSC,
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16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,940 },
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{ "Philips PAL_MK (FI1216 MK)", Philips, PAL,
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16*140.25,16*463.25,0x01,0xc2,0xcf,0x8e,623},
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{ "Philips 1236D ATSC/NTSC daul in",Philips,ATSC,
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16*157.25,16*454.00,0xa0,0x90,0x30,0x8e,732},
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{ "Philips NTSC MK3 (FM1236MK3 or FM1236/F)", Philips, NTSC,
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16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
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{ "Philips 4 in 1 (ATI TV Wonder Pro/Conexant)", Philips, NTSC,
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16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
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{ "Microtune 4049 FM5",Microtune,PAL,
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16*141.00,16*464.00,0xa0,0x90,0x30,0x8e,623},
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{ "Panasonic VP27s/ENGE4324D", Panasonic, NTSC,
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16*160.00,16*454.00,0x01,0x02,0x08,0xce,940},
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{ "LG NTSC (TAPE series)", LGINNOTEK, NTSC,
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16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
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{ "Tenna TNF 8831 BGFF)", Philips, PAL,
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16*161.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
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{ "Microtune 4042 FI5 ATSC/NTSC dual in", Microtune, NTSC,
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16*162.00,16*457.00,0xa2,0x94,0x31,0x8e,732},
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{ "TCL 2002N", TCL, NTSC,
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16*172.00,16*448.00,0x01,0x02,0x08,0x8e,732},
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{ "Philips PAL/SECAM_D (FM 1256 I-H3)", Philips, PAL,
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16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
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{ "Thomson DDT 7610 (ATSC/NTSC)", THOMSON, ATSC,
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16*157.25,16*454.00,0x39,0x3a,0x3c,0x8e,732},
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{ "Philips FQ1286", Philips, NTSC,
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16*160.00,16*454.00,0x41,0x42,0x04,0x8e,940}, // UHF band untested
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{ "tda8290+75", Philips,PAL|NTSC,
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/* see tda8290.c for details */ },
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{ "LG PAL (TAPE series)", LGINNOTEK, PAL,
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16*170.00, 16*450.00, 0x01,0x02,0x08,0xce,623},
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{ "Philips PAL/SECAM multi (FQ1216AME MK4)", Philips, PAL,
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16*160.00,16*442.00,0x01,0x02,0x04,0xce,623 },
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{ "Philips FQ1236A MK4", Philips, NTSC,
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16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
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};
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unsigned const int tuner_count = ARRAY_SIZE(tuners);
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/* ---------------------------------------------------------------------- */
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static int tuner_getstatus(struct i2c_client *c)
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{
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unsigned char byte;
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if (1 != i2c_master_recv(c,&byte,1))
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return 0;
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return byte;
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}
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#define TUNER_POR 0x80
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#define TUNER_FL 0x40
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#define TUNER_MODE 0x38
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#define TUNER_AFC 0x07
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#define TUNER_STEREO 0x10 /* radio mode */
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#define TUNER_SIGNAL 0x07 /* radio mode */
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static int tuner_signal(struct i2c_client *c)
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{
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return (tuner_getstatus(c) & TUNER_SIGNAL)<<13;
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}
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static int tuner_stereo(struct i2c_client *c)
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{
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return (tuner_getstatus (c) & TUNER_STEREO);
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}
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#if 0 /* unused */
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static int tuner_islocked (struct i2c_client *c)
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{
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return (tuner_getstatus (c) & TUNER_FL);
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}
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static int tuner_afcstatus (struct i2c_client *c)
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{
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return (tuner_getstatus (c) & TUNER_AFC) - 2;
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}
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static int tuner_mode (struct i2c_client *c)
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{
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return (tuner_getstatus (c) & TUNER_MODE) >> 3;
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}
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#endif
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/* ---------------------------------------------------------------------- */
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static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
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{
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struct tuner *t = i2c_get_clientdata(c);
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u8 config;
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u16 div;
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struct tunertype *tun;
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unsigned char buffer[4];
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int rc;
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tun = &tuners[t->type];
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if (freq < tun->thresh1) {
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config = tun->VHF_L;
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tuner_dbg("tv: VHF lowrange\n");
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} else if (freq < tun->thresh2) {
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config = tun->VHF_H;
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tuner_dbg("tv: VHF high range\n");
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} else {
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config = tun->UHF;
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tuner_dbg("tv: UHF range\n");
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}
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/* tv norm specific stuff for multi-norm tuners */
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switch (t->type) {
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case TUNER_PHILIPS_SECAM: // FI1216MF
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/* 0x01 -> ??? no change ??? */
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/* 0x02 -> PAL BDGHI / SECAM L */
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/* 0x04 -> ??? PAL others / SECAM others ??? */
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config &= ~0x02;
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if (t->std & V4L2_STD_SECAM)
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config |= 0x02;
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break;
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case TUNER_TEMIC_4046FM5:
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config &= ~0x0f;
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if (t->std & V4L2_STD_PAL_BG) {
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config |= TEMIC_SET_PAL_BG;
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} else if (t->std & V4L2_STD_PAL_I) {
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config |= TEMIC_SET_PAL_I;
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} else if (t->std & V4L2_STD_PAL_DK) {
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config |= TEMIC_SET_PAL_DK;
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} else if (t->std & V4L2_STD_SECAM_L) {
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config |= TEMIC_SET_PAL_L;
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}
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break;
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case TUNER_PHILIPS_FQ1216ME:
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config &= ~0x0f;
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if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
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config |= PHILIPS_SET_PAL_BGDK;
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} else if (t->std & V4L2_STD_PAL_I) {
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config |= PHILIPS_SET_PAL_I;
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} else if (t->std & V4L2_STD_SECAM_L) {
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config |= PHILIPS_SET_PAL_L;
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}
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break;
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case TUNER_PHILIPS_ATSC:
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/* 0x00 -> ATSC antenna input 1 */
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/* 0x01 -> ATSC antenna input 2 */
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/* 0x02 -> NTSC antenna input 1 */
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/* 0x03 -> NTSC antenna input 2 */
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config &= ~0x03;
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if (!(t->std & V4L2_STD_ATSC))
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config |= 2;
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/* FIXME: input */
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break;
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case TUNER_MICROTUNE_4042FI5:
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/* Set the charge pump for fast tuning */
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tun->config |= 0x40;
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break;
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}
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/*
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* Philips FI1216MK2 remark from specification :
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* for channel selection involving band switching, and to ensure
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* smooth tuning to the desired channel without causing
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* unnecessary charge pump action, it is recommended to consider
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* the difference between wanted channel frequency and the
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* current channel frequency. Unnecessary charge pump action
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* will result in very low tuning voltage which may drive the
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* oscillator to extreme conditions.
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*
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* Progfou: specification says to send config data before
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* frequency in case (wanted frequency < current frequency).
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*/
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div=freq + tun->IFPCoff;
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if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
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buffer[0] = tun->config;
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buffer[1] = config;
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buffer[2] = (div>>8) & 0x7f;
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buffer[3] = div & 0xff;
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} else {
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buffer[0] = (div>>8) & 0x7f;
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buffer[1] = div & 0xff;
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buffer[2] = tun->config;
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buffer[3] = config;
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}
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tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
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buffer[0],buffer[1],buffer[2],buffer[3]);
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if (4 != (rc = i2c_master_send(c,buffer,4)))
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tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
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if (t->type == TUNER_MICROTUNE_4042FI5) {
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// FIXME - this may also work for other tuners
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unsigned long timeout = jiffies + msecs_to_jiffies(1);
|
|
u8 status_byte = 0;
|
|
|
|
/* Wait until the PLL locks */
|
|
for (;;) {
|
|
if (time_after(jiffies,timeout))
|
|
return;
|
|
if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
|
|
tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
|
|
break;
|
|
}
|
|
/* bit 6 is PLL locked indicator */
|
|
if (status_byte & 0x40)
|
|
break;
|
|
udelay(10);
|
|
}
|
|
|
|
/* Set the charge pump for optimized phase noise figure */
|
|
tun->config &= ~0x40;
|
|
buffer[0] = (div>>8) & 0x7f;
|
|
buffer[1] = div & 0xff;
|
|
buffer[2] = tun->config;
|
|
buffer[3] = config;
|
|
tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
|
buffer[0],buffer[1],buffer[2],buffer[3]);
|
|
|
|
if (4 != (rc = i2c_master_send(c,buffer,4)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
|
|
}
|
|
}
|
|
|
|
static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
|
|
{
|
|
struct tunertype *tun;
|
|
struct tuner *t = i2c_get_clientdata(c);
|
|
unsigned char buffer[4];
|
|
unsigned div;
|
|
int rc;
|
|
|
|
tun=&tuners[t->type];
|
|
div = freq + (int)(16*10.7);
|
|
buffer[2] = tun->config;
|
|
|
|
switch (t->type) {
|
|
case TUNER_PHILIPS_FM1216ME_MK3:
|
|
case TUNER_PHILIPS_FM1236_MK3:
|
|
buffer[3] = 0x19;
|
|
break;
|
|
case TUNER_PHILIPS_FM1256_IH3:
|
|
div = (20 * freq)/16 + 333 * 2;
|
|
buffer[2] = 0x80;
|
|
buffer[3] = 0x19;
|
|
break;
|
|
case TUNER_LG_PAL_FM:
|
|
buffer[3] = 0xa5;
|
|
break;
|
|
default:
|
|
buffer[3] = 0xa4;
|
|
break;
|
|
}
|
|
buffer[0] = (div>>8) & 0x7f;
|
|
buffer[1] = div & 0xff;
|
|
|
|
tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
|
buffer[0],buffer[1],buffer[2],buffer[3]);
|
|
|
|
if (4 != (rc = i2c_master_send(c,buffer,4)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
|
|
}
|
|
|
|
int default_tuner_init(struct i2c_client *c)
|
|
{
|
|
struct tuner *t = i2c_get_clientdata(c);
|
|
|
|
tuner_info("type set to %d (%s)\n",
|
|
t->type, tuners[t->type].name);
|
|
strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
|
|
|
|
t->tv_freq = default_set_tv_freq;
|
|
t->radio_freq = default_set_radio_freq;
|
|
t->has_signal = tuner_signal;
|
|
t->is_stereo = tuner_stereo;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|