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* Driver for Microtune MT2060 "Single chip dual conversion broadband tuner"
*
* Copyright (c) 2006 Olivier DANET <odanet@caramail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*/
#ifndef MT2060_PRIV_H
#define MT2060_PRIV_H
// Uncomment the #define below to enable spurs checking. The results where quite unconvincing.
// #define MT2060_SPURCHECK
/* This driver is based on the information available in the datasheet of the
"Comtech SDVBT-3K6M" tuner ( K1000737843.pdf ) which features the MT2060 register map :
I2C Address : 0x60
Reg.No | B7 | B6 | B5 | B4 | B3 | B2 | B1 | B0 | ( defaults )
--------------------------------------------------------------------------------
00 | [ PART ] | [ REV ] | R = 0x63
01 | [ LNABAND ] | [ NUM1(5:2) ] | RW = 0x3F
02 | [ DIV1 ] | RW = 0x74
03 | FM1CA | FM1SS | [ NUM1(1:0) ] | [ NUM2(3:0) ] | RW = 0x00
04 | NUM2(11:4) ] | RW = 0x08
05 | [ DIV2 ] |NUM2(12)| RW = 0x93
06 | L1LK | [ TAD1 ] | L2LK | [ TAD2 ] | R
07 | [ FMF ] | R
08 | ? | FMCAL | ? | ? | ? | ? | ? | TEMP | R
09 | 0 | 0 | [ FMGC ] | 0 | GP02 | GP01 | 0 | RW = 0x20
0A | ??
0B | 0 | 0 | 1 | 1 | 0 | 0 | [ VGAG ] | RW = 0x30
0C | V1CSE | 1 | 1 | 1 | 1 | 1 | 1 | 1 | RW = 0xFF
0D | 1 | 0 | [ V1CS ] | RW = 0xB0
0E | ??
0F | ??
10 | ??
11 | [ LOTO ] | 0 | 0 | 1 | 0 | RW = 0x42
PART : Part code : 6 for MT2060
REV : Revision code : 3 for current revision
LNABAND : Input frequency range : ( See code for details )
NUM1 / DIV1 / NUM2 / DIV2 : Frequencies programming ( See code for details )
FM1CA : Calibration Start Bit
FM1SS : Calibration Single Step bit
L1LK : LO1 Lock Detect
TAD1 : Tune Line ADC ( ? )
L2LK : LO2 Lock Detect
TAD2 : Tune Line ADC ( ? )
FMF : Estimated first IF Center frequency Offset ( ? )
FM1CAL : Calibration done bit
TEMP : On chip temperature sensor
FMCG : Mixer 1 Cap Gain ( ? )
GP01 / GP02 : Programmable digital outputs. Unconnected pins ?
V1CSE : LO1 VCO Automatic Capacitor Select Enable ( ? )
V1CS : LO1 Capacitor Selection Value ( ? )
LOTO : LO Timeout ( ? )
VGAG : Tuner Output gain
*/
#define I2C_ADDRESS 0x60
#define REG_PART_REV 0
#define REG_LO1C1 1
#define REG_LO1C2 2
#define REG_LO2C1 3
#define REG_LO2C2 4
#define REG_LO2C3 5
#define REG_LO_STATUS 6
#define REG_FM_FREQ 7
#define REG_MISC_STAT 8
#define REG_MISC_CTRL 9
#define REG_RESERVED_A 0x0A
#define REG_VGAG 0x0B
#define REG_LO1B1 0x0C
#define REG_LO1B2 0x0D
#define REG_LOTO 0x11
#define PART_REV 0x63 // The current driver works only with PART=6 and REV=3 chips
struct mt2060_priv {
struct mt2060_config *cfg;
struct i2c_adapter *i2c;
struct i2c_client *client;
struct mt2060_config config;
u8 i2c_max_regs;
u32 frequency;
u16 if1_freq;
u8 fmfreq;
/*
* Use REG_MISC_CTRL register for sleep. That drops sleep power usage
* about 0.9W (huge!). Register bit meanings are unknown, so let it be
* disabled by default to avoid possible regression. Convert driver to
* i2c model in order to enable it.
*/
bool sleep;
};
#endif
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