diff options
Diffstat (limited to 'linux/drivers/media/dvb/frontends')
| -rw-r--r-- | linux/drivers/media/dvb/frontends/dib3000mc.c | 6 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/dib3000mc_priv.h | 19 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/mt2060.c | 257 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/mt2060.h | 42 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/mt2060_priv.h | 95 |
5 files changed, 413 insertions, 6 deletions
diff --git a/linux/drivers/media/dvb/frontends/dib3000mc.c b/linux/drivers/media/dvb/frontends/dib3000mc.c index 3b303dbb6..66b30edad 100644 --- a/linux/drivers/media/dvb/frontends/dib3000mc.c +++ b/linux/drivers/media/dvb/frontends/dib3000mc.c @@ -558,6 +558,7 @@ static int dib3000mc_set_frontend(struct dvb_frontend* fe, static int dib3000mc_fe_init(struct dvb_frontend* fe, int mobile_mode) { struct dib3000_state *state = fe->demodulator_priv; + int AGCtuner=(int)fe->misc_priv; deb_info("init start\n"); state->timing_offset = 0; @@ -583,10 +584,11 @@ static int dib3000mc_fe_init(struct dvb_frontend* fe, int mobile_mode) /* mobile mode - portable reception */ wr_foreach(dib3000mc_reg_mobile_mode,dib3000mc_mobile_mode[1]); -/* TUNER_PANASONIC_ENV57H12D5: */ +/* TUNER_PANASONIC_ENV57H12D5 or TUNER_MICROTUNE_MT2060. Sets agc_tuner accordingly */ wr_foreach(dib3000mc_reg_agc_bandwidth,dib3000mc_agc_bandwidth); wr_foreach(dib3000mc_reg_agc_bandwidth_general,dib3000mc_agc_bandwidth_general); - wr_foreach(dib3000mc_reg_agc,dib3000mc_agc_tuner[1]); + if (AGCtuner<0 || AGCtuner>=DIB3000MC_AGC_TUNER_COUNT) AGCtuner=1; + wr_foreach(dib3000mc_reg_agc,dib3000mc_agc_tuner[AGCtuner]); wr(DIB3000MC_REG_UNK_110,DIB3000MC_UNK_110); wr(26,0x6680); diff --git a/linux/drivers/media/dvb/frontends/dib3000mc_priv.h b/linux/drivers/media/dvb/frontends/dib3000mc_priv.h index 2930aac75..e1d0c98cf 100644 --- a/linux/drivers/media/dvb/frontends/dib3000mc_priv.h +++ b/linux/drivers/media/dvb/frontends/dib3000mc_priv.h @@ -159,23 +159,34 @@ static u16 dib3000mc_imp_noise_ctl[][2] = { static u16 dib3000mc_reg_agc[] = { 36,37,38,39,42,43,44,45,46,47,48,49 }; +/* AGC settings. Don't change the ordering of the entries */ +#define DIB3000MC_AGC_TUNER_COUNT 5 static u16 dib3000mc_agc_tuner[][12] = { - { 0x0051, 0x301d, 0x0000, 0x1cc7, 0xcf5c, 0x6666, +/* 0*/ { 0x0051, 0x301d, 0x0000, 0x1cc7, 0xcf5c, 0x6666, 0xbae1, 0xa148, 0x3b5e, 0x3c1c, 0x001a, 0x2019 }, /* TUNER_PANASONIC_ENV77H04D5, */ - { 0x0051, 0x301d, 0x0000, 0x1cc7, 0xdc29, 0x570a, +/* 1*/ { 0x0051, 0x301d, 0x0000, 0x1cc7, 0xdc29, 0x570a, 0xbae1, 0x8ccd, 0x3b6d, 0x551d, 0x000a, 0x951e }, /* TUNER_PANASONIC_ENV57H13D5, TUNER_PANASONIC_ENV57H12D5 */ - { 0x0051, 0x301d, 0x0000, 0x1cc7, 0xffff, 0xffff, +/* 2*/ { 0x0051, 0x301d, 0x0000, 0x1cc7, 0xffff, 0xffff, 0xffff, 0x0000, 0xfdfd, 0x4040, 0x00fd, 0x4040 }, /* TUNER_SAMSUNG_DTOS333IH102, TUNER_RFAGCIN_UNKNOWN */ - { 0x0196, 0x301d, 0x0000, 0x1cc7, 0xbd71, 0x5c29, +/* 3*/ { 0x0196, 0x301d, 0x0000, 0x1cc7, 0xbd71, 0x5c29, 0xb5c3, 0x6148, 0x6569, 0x5127, 0x0033, 0x3537 }, /* TUNER_PROVIDER_X */ + +/* 4*/ { 0x0196, 0x301d, 0x0000, 0x1cc7, 0xffff, 0x5c29, + 0xa8f6, 0x5eb8, 0x65ff, 0x40ff, 0x008a, 0x1114 + }, /* TUNER_MT2060 ( as in DibCom driver )*/ + +/* { 0x0196, 0x301d, 0x0000, 0x1cc7, 0xbd71, 0x5c29, + 0xb5c3, 0x6148, 0x0045, 0x5127, 0x0033, 0x3437 + },*//* TUNER_MT2060 ( as in LITE-ON driver )*/ + /* TODO TUNER_PANASONIC_ENV57H10D8, TUNER_PANASONIC_ENV57H11D8 */ }; diff --git a/linux/drivers/media/dvb/frontends/mt2060.c b/linux/drivers/media/dvb/frontends/mt2060.c new file mode 100644 index 000000000..4d8efe1ae --- /dev/null +++ b/linux/drivers/media/dvb/frontends/mt2060.c @@ -0,0 +1,257 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.= + */ + +/* See mt2060_priv.h for details */ + +/* In that file, frequencies are expressed in kiloHertz to avoid 32 bits overflows */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/dvb/frontend.h> +#include "mt2060.h" +#include "mt2060_priv.h" + +static int debug=0; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); + +#define dprintk(args...) do { if (debug) printk(KERN_DEBUG "MT2060: " args); printk("\n"); } while (0) + +// Reads a single register +static int mt2060_readreg(struct mt2060_state *state, u8 reg, u8 *val) +{ + struct i2c_msg msg[2] = { + { .addr = state->config->i2c_address, .flags = 0, .buf = ®, .len = 1 }, + { .addr = state->config->i2c_address, .flags = I2C_M_RD, .buf = val, .len = 1 }, + }; + + if (i2c_transfer(state->i2c, msg, 2) != 2) { + printk(KERN_WARNING "mt2060 I2C read failed\n"); + return -EREMOTEIO; + } + return 0; +} + +// Writes a single register +static int mt2060_writereg(struct mt2060_state *state, u8 reg, u8 val) +{ + u8 buf[2]; + struct i2c_msg msg = { + .addr = state->config->i2c_address, .flags = 0, .buf = buf, .len = 2 }; + buf[0]=reg; + buf[1]=val; + + if (i2c_transfer(state->i2c, &msg, 1) != 1) { + printk(KERN_WARNING "mt2060 I2C write failed\n"); + return -EREMOTEIO; + } + return 0; +} + +// Writes a set of consecutive registers +static int mt2060_writeregs(struct mt2060_state *state,u8 *buf, u8 len) +{ + struct i2c_msg msg = { + .addr = state->config->i2c_address, .flags = 0, .buf = buf, .len = len }; + if (i2c_transfer(state->i2c, &msg, 1) != 1) { + printk(KERN_WARNING "mt2060 I2C write failed (len=%i)\n",(int)len); + return -EREMOTEIO; + } + return 0; +} + +// Initialization : VGAG=01, V1CSE=1 +static u8 mt2060_config1[] = { + REG_VGAG, + 0x31, 0xff +}; + +// Initialization : FMCG=2, GP2=0, GP1=0 +static u8 mt2060_config2[] = { + REG_MISC_CTRL, + 0x20 +}; + +// The power-up values are : +// LNABAND=3, NUM1=0x3C, DIV1=0x74, NUM2=0x1080, DIV2=0x49 --> LO1=1.871GHz LO2=1.176250GHz +static u8 mt2060_config3[] = { + REG_LO1C1, + 0x3F, 0x74, 0x00, 0x08, 0x93 +}; + +int mt2060_init(struct mt2060_state *state) +{ + if (mt2060_writeregs(state,mt2060_config1,sizeof(mt2060_config1))) + return -EREMOTEIO; + if (mt2060_writeregs(state,mt2060_config2,sizeof(mt2060_config2))) + return -EREMOTEIO; + if (mt2060_writeregs(state,mt2060_config3,sizeof(mt2060_config3))) + return -EREMOTEIO; + return 0; +} +EXPORT_SYMBOL(mt2060_init); + +#ifdef MT2060_SPURCHECK +/* The function below calculates the frequency offset between the output frequency if2 + and the closer cross modulation subcarrier between lo1 and lo2 up to the tenth harmonic */ +static int mt2060_spurcalc(u32 lo1,u32 lo2,u32 if2) +{ + int I,J; + int dia,diamin,diff; + diamin=1000000; + for (I=1;I<10;I++) { + J=((2*I*lo1)/lo2+1)/2; + diff=I*(int)lo1-J*(int)lo2; + if (diff<0) diff=-diff; + dia=(diff-(int)if2); + if (dia<0) dia=-dia; + if (diamin>dia) diamin=dia; + } + return diamin; +} + +#define BANDWIDTH 4000 // kHz + +/* Calculates the frequency offset to add to avoid spurs. Returns 0 if no offset is needed */ +static int mt2060_spurcheck(u32 lo1,u32 lo2,u32 if2) +{ + u32 Spur,Sp1,Sp2; + int I,J; + I=0; + J=1000; + + Spur=mt2060_spurcalc(lo1,lo2,if2); + if (Spur<BANDWIDTH) { + /* Potential spurs detected */ + dprintk("Spurs before : f_lo1: %d f_lo2: %d (kHz)", + (int)lo1,(int)lo2); + I=1000; + Sp1=mt2060_spurcalc(lo1+I,lo2+I,if2); + Sp2=mt2060_spurcalc(lo1-I,lo2-I,if2); + + if (Sp1<Sp2) { J=-J; I=-I; Spur=Sp2; } + else Spur=Sp1; + + while (Spur<BANDWIDTH) { + I+=J; + Spur=mt2060_spurcalc(lo1+I,lo2+I,if2); + } + dprintk("Spurs after : f_lo1: %d f_lo2: %d (kHz)", + (int)(lo1+I),(int)(lo2+I)); + } + return I; +} +#endif + +#define IF1 (1220*1000) // IF1 frequency = 1.220 GHz +#define IF2 36150 // IF2 frequency = 36.150 MHz +#define FREF 16000 // Quartz oscillator 16 MHz + +int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep) +{ + u32 freq; + int lnaband; + u32 f_lo1,f_lo2; + u32 div1,num1,div2,num2; + u8 b[8]; + int ret=0; + + freq=fep->frequency / 1000; // Hz -> kHz + + f_lo1=freq + IF1; + f_lo1=(f_lo1/250)*250; + f_lo2=f_lo1 - freq - IF2; + f_lo2=(f_lo2/50)*50; + +#ifdef MT2060_SPURCHECK + // LO-related spurs detection and correction + num1=mt2060_spurcheck(f_lo1,f_lo2,IF2); + f_lo1+=num1; + f_lo2+=num1; +#endif + //Frequency LO1 = 16MHz * (DIV1 + NUM1/64 ) + div1=f_lo1 / FREF; + num1=(64 * (f_lo1 % FREF) )/FREF; + + // Frequency LO2 = 16MHz * (DIV2 + NUM2/8192 ) + div2=f_lo2 / FREF; + num2=(16384 * (f_lo2 % FREF) /FREF +1)/2; + + if (freq<=95 *1000) lnaband=0xB0; else + if (freq<=180*1000) lnaband=0xA0; else + if (freq<=260*1000) lnaband=0x90; else + if (freq<=335*1000) lnaband=0x80; else + if (freq<=425*1000) lnaband=0x70; else + if (freq<=480*1000) lnaband=0x60; else + if (freq<=570*1000) lnaband=0x50; else + if (freq<=645*1000) lnaband=0x40; else + if (freq<=730*1000) lnaband=0x30; else + if (freq<=810*1000) lnaband=0x20; else + lnaband=0x10; + + b[0]=REG_LO1C1; + b[1]=lnaband | ((num1 >>2) & 0x0F); + b[2]=div1; + b[3]=(num2 & 0x0F) | ((num1 & 3) << 4); + b[4]=num2 >> 4; + b[5]=((num2 >>12) & 1) | (div2 << 1); + + dprintk("PLL freq: %d f_lo1: %d f_lo2: %d (kHz)",(int)freq,(int)f_lo1,(int)f_lo2); + dprintk("PLL div1: %d num1: %d div2: %d num2: %d",(int)div1,(int)num1,(int)div2,(int)num2); + dprintk("PLL [1..5]: %2x %2x %2x %2x %2x",(int)b[1],(int)b[2],(int)b[3],(int)b[4],(int)b[5]); + + mt2060_writeregs(state,b,6); + return ret; +} +EXPORT_SYMBOL(mt2060_set); + +/* This functions tries to identify a MT2060 tuner by reading the PART/REV register. This is hasty. */ +int mt2060_attach(struct mt2060_state *state, struct mt2060_config *config, struct i2c_adapter *i2c) +{ + u8 id; + memset(state,0,sizeof(struct mt2060_state)); + + state->config = config; + state->i2c = i2c; + + if (mt2060_readreg(state,REG_PART_REV,&id) != 0) + return -ENODEV; + + if (id!=PART_REV) + return -ENODEV; + + if (mt2060_writereg(state,REG_PART_REV,0) != 0) + return -ENODEV; + + if (mt2060_readreg(state,REG_PART_REV,&id) != 0) + return -ENODEV; + + if (id!=PART_REV) + return -ENODEV; + + printk(KERN_INFO "MT2060: Identified Microtune MT2060 chip\n"); + return 0; +} +EXPORT_SYMBOL(mt2060_attach); + +MODULE_AUTHOR("Olivier DANET"); +MODULE_DESCRIPTION("Microtune MT2060 silicon tuner driver"); +MODULE_LICENSE("GPL"); diff --git a/linux/drivers/media/dvb/frontends/mt2060.h b/linux/drivers/media/dvb/frontends/mt2060.h new file mode 100644 index 000000000..5ced83edd --- /dev/null +++ b/linux/drivers/media/dvb/frontends/mt2060.h @@ -0,0 +1,42 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.= + */ + +#ifndef MT2060_H +#define MT2060_H + +#include <linux/i2c.h> +#include <linux/dvb/frontend.h> + +struct mt2060_config { + u8 i2c_address; + /* Shall we add settings for the discrete outputs ? */ +}; + +struct mt2060_state { + struct mt2060_config *config; + struct i2c_adapter *i2c; +}; + +extern int mt2060_init(struct mt2060_state *state); +extern int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep); +extern int mt2060_attach(struct mt2060_state *state, struct mt2060_config *config, struct i2c_adapter *i2c); + +#endif diff --git a/linux/drivers/media/dvb/frontends/mt2060_priv.h b/linux/drivers/media/dvb/frontends/mt2060_priv.h new file mode 100644 index 000000000..b8a2e557e --- /dev/null +++ b/linux/drivers/media/dvb/frontends/mt2060_priv.h @@ -0,0 +1,95 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.= + */ + +#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 + +#endif |