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@ -1,11 +1,8 @@
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/*
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* Support for LGDT3302 & LGDT3303 (DViCO FusionHDTV Gold) - VSB/QAM
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* Support for LGDT3302 and LGDT3303 - VSB/QAM
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*
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* Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net>
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*
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* Based on code from Kirk Lapray <kirk_lapray@bigfoot.com>
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* Copyright (C) 2005
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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@ -25,11 +22,13 @@
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/*
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* NOTES ABOUT THIS DRIVER
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*
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* This driver supports DViCO FusionHDTV Gold under Linux.
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* This Linux driver supports:
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* DViCO FusionHDTV 3 Gold-Q
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* DViCO FusionHDTV 3 Gold-T
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* DViCO FusionHDTV 5 Gold
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*
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* TODO:
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* BER and signal strength always return 0.
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* Include support for LGDT3303
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* signal strength always returns 0.
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*
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*/
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@ -41,7 +40,6 @@
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#include <asm/byteorder.h>
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#include "dvb_frontend.h"
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#include "dvb-pll.h"
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#include "lgdt330x_priv.h"
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#include "lgdt330x.h"
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@ -70,55 +68,37 @@ struct lgdt330x_state
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u32 current_frequency;
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};
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static int i2c_writebytes (struct lgdt330x_state* state,
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u8 addr, /* demod_address or pll_address */
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static int i2c_write_demod_bytes (struct lgdt330x_state* state,
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u8 *buf, /* data bytes to send */
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int len /* number of bytes to send */ )
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{
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u8 tmp[] = { buf[0], buf[1] };
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struct i2c_msg msg =
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{ .addr = addr, .flags = 0, .buf = tmp, .len = 2 };
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int err;
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{ .addr = state->config->demod_address,
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.flags = 0,
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.buf = buf,
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.len = 2 };
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int i;
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int err;
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for (i=1; i<len; i++) {
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tmp[1] = buf[i];
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for (i=0; i<len-1; i+=2){
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err);
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printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, msg.buf[0], msg.buf[1], err);
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if (err < 0)
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return err;
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else
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return -EREMOTEIO;
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}
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tmp[0]++;
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msg.buf += 2;
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}
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return 0;
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}
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#if 0
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static int i2c_readbytes (struct lgdt330x_state* state,
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u8 addr, /* demod_address or pll_address */
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u8 *buf, /* holds data bytes read */
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int len /* number of bytes to read */ )
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{
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struct i2c_msg msg =
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{ .addr = addr, .flags = I2C_M_RD, .buf = buf, .len = len };
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int err;
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "lgdt330x: %s error (addr %02x, err == %i)\n", __FUNCTION__, addr, err);
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return -EREMOTEIO;
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}
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return 0;
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}
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#endif
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/*
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* This routine writes the register (reg) to the demod bus
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* then reads the data returned for (len) bytes.
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*/
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static u8 i2c_selectreadbytes (struct lgdt330x_state* state,
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static u8 i2c_read_demod_bytes (struct lgdt330x_state* state,
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enum I2C_REG reg, u8* buf, int len)
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{
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u8 wr [] = { reg };
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@ -139,7 +119,7 @@ static u8 i2c_selectreadbytes (struct lgdt330x_state* state,
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}
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/* Software reset */
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int lgdt330x_SwReset(struct lgdt330x_state* state)
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static int lgdt3302_SwReset(struct lgdt330x_state* state)
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{
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u8 ret;
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u8 reset[] = {
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@ -148,23 +128,83 @@ int lgdt330x_SwReset(struct lgdt330x_state* state)
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* bits 5-0 are 1 to mask interrupts */
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};
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ret = i2c_writebytes(state,
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state->config->demod_address,
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ret = i2c_write_demod_bytes(state,
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reset, sizeof(reset));
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if (ret == 0) {
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/* spec says reset takes 100 ns why wait */
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/* mdelay(100); */ /* keep low for 100mS */
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reset[1] = 0x7f; /* force reset high (inactive)
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* and unmask interrupts */
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ret = i2c_writebytes(state,
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state->config->demod_address,
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/* force reset high (inactive) and unmask interrupts */
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reset[1] = 0x7f;
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ret = i2c_write_demod_bytes(state,
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reset, sizeof(reset));
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}
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/* Spec does not indicate a need for this either */
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/*mdelay(5); */ /* wait 5 msec before doing more */
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return ret;
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}
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static int lgdt3303_SwReset(struct lgdt330x_state* state)
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{
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u8 ret;
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u8 reset[] = {
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0x02,
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0x00 /* bit 0 is active low software reset */
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};
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ret = i2c_write_demod_bytes(state,
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reset, sizeof(reset));
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if (ret == 0) {
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/* force reset high (inactive) */
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reset[1] = 0x01;
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ret = i2c_write_demod_bytes(state,
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reset, sizeof(reset));
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}
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return ret;
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}
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static int lgdt330x_SwReset(struct lgdt330x_state* state)
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{
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switch (state->config->demod_chip) {
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case LGDT3302:
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return lgdt3302_SwReset(state);
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case LGDT3303:
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return lgdt3303_SwReset(state);
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default:
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return -ENODEV;
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}
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}
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#ifdef MUTE_TDA9887
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static int i2c_write_ntsc_demod (struct lgdt330x_state* state, u8 buf[2])
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{
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struct i2c_msg msg =
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{ .addr = 0x43,
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.flags = 0,
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.buf = buf,
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.len = 2 };
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int err;
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, msg.buf[0], msg.buf[1], err);
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if (err < 0)
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return err;
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else
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return -EREMOTEIO;
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}
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return 0;
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}
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static void fiddle_with_ntsc_if_demod(struct lgdt330x_state* state)
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{
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// Experimental code
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u8 buf0[] = {0x00, 0x20};
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u8 buf1[] = {0x01, 0x00};
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u8 buf2[] = {0x02, 0x00};
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i2c_write_ntsc_demod(state, buf0);
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i2c_write_ntsc_demod(state, buf1);
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i2c_write_ntsc_demod(state, buf2);
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}
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#endif
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static int lgdt330x_init(struct dvb_frontend* fe)
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{
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/* Hardware reset is done using gpio[0] of cx23880x chip.
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@ -173,22 +213,101 @@ static int lgdt330x_init(struct dvb_frontend* fe)
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* Maybe there needs to be a callable function in cx88-core or
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* the caller of this function needs to do it. */
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dprintk("%s entered\n", __FUNCTION__);
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return lgdt330x_SwReset((struct lgdt330x_state*) fe->demodulator_priv);
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/*
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* Array of byte pairs <address, value>
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* to initialize each different chip
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*/
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static u8 lgdt3302_init_data[] = {
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/* Use 50MHz parameter values from spec sheet since xtal is 50 */
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/* Change the value of NCOCTFV[25:0] of carrier
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recovery center frequency register */
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VSB_CARRIER_FREQ0, 0x00,
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VSB_CARRIER_FREQ1, 0x87,
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VSB_CARRIER_FREQ2, 0x8e,
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VSB_CARRIER_FREQ3, 0x01,
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/* Change the TPCLK pin polarity
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data is valid on falling clock */
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DEMUX_CONTROL, 0xfb,
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/* Change the value of IFBW[11:0] of
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AGC IF/RF loop filter bandwidth register */
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AGC_RF_BANDWIDTH0, 0x40,
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AGC_RF_BANDWIDTH1, 0x93,
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AGC_RF_BANDWIDTH2, 0x00,
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/* Change the value of bit 6, 'nINAGCBY' and
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'NSSEL[1:0] of ACG function control register 2 */
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AGC_FUNC_CTRL2, 0xc6,
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/* Change the value of bit 6 'RFFIX'
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of AGC function control register 3 */
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AGC_FUNC_CTRL3, 0x40,
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/* Set the value of 'INLVTHD' register 0x2a/0x2c
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to 0x7fe */
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AGC_DELAY0, 0x07,
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AGC_DELAY2, 0xfe,
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/* Change the value of IAGCBW[15:8]
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of inner AGC loop filter bandwith */
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AGC_LOOP_BANDWIDTH0, 0x08,
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AGC_LOOP_BANDWIDTH1, 0x9a
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};
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static u8 lgdt3303_init_data[] = {
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0x4c, 0x14
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};
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struct lgdt330x_state* state = fe->demodulator_priv;
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char *chip_name;
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int err;
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switch (state->config->demod_chip) {
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case LGDT3302:
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chip_name = "LGDT3302";
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err = i2c_write_demod_bytes(state, lgdt3302_init_data,
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sizeof(lgdt3302_init_data));
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break;
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case LGDT3303:
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chip_name = "LGDT3303";
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err = i2c_write_demod_bytes(state, lgdt3303_init_data,
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sizeof(lgdt3303_init_data));
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#ifdef MUTE_TDA9887
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fiddle_with_ntsc_if_demod(state);
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#endif
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break;
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default:
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chip_name = "undefined";
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printk (KERN_WARNING "Only LGDT3302 and LGDT3303 are supported chips.\n");
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err = -ENODEV;
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}
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dprintk("%s entered as %s\n", __FUNCTION__, chip_name);
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if (err < 0)
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return err;
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return lgdt330x_SwReset(state);
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}
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static int lgdt330x_read_ber(struct dvb_frontend* fe, u32* ber)
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{
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*ber = 0; /* Dummy out for now */
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*ber = 0; /* Not supplied by the demod chips */
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return 0;
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}
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static int lgdt330x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
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{
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struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
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struct lgdt330x_state* state = fe->demodulator_priv;
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int err;
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u8 buf[2];
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i2c_selectreadbytes(state, PACKET_ERR_COUNTER1, buf, sizeof(buf));
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switch (state->config->demod_chip) {
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case LGDT3302:
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err = i2c_read_demod_bytes(state, LGDT3302_PACKET_ERR_COUNTER1,
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buf, sizeof(buf));
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break;
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case LGDT3303:
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err = i2c_read_demod_bytes(state, LGDT3303_PACKET_ERR_COUNTER1,
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buf, sizeof(buf));
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break;
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default:
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printk(KERN_WARNING
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"Only LGDT3302 and LGDT3303 are supported chips.\n");
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err = -ENODEV;
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}
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*ucblocks = (buf[0] << 8) | buf[1];
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return 0;
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@ -197,123 +316,113 @@ static int lgdt330x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
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static int lgdt330x_set_parameters(struct dvb_frontend* fe,
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struct dvb_frontend_parameters *param)
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{
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struct lgdt330x_state* state =
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(struct lgdt330x_state*) fe->demodulator_priv;
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/*
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* Array of byte pairs <address, value>
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* to initialize 8VSB for lgdt3303 chip 50 MHz IF
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*/
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static u8 lgdt3303_8vsb_44_data[] = {
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0x04, 0x00,
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0x0d, 0x40,
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0x0e, 0x87,
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0x0f, 0x8e,
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0x10, 0x01,
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0x47, 0x8b };
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/*
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* Array of byte pairs <address, value>
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* to initialize QAM for lgdt3303 chip
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*/
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static u8 lgdt3303_qam_data[] = {
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0x04, 0x00,
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0x0d, 0x00,
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0x0e, 0x00,
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0x0f, 0x00,
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0x10, 0x00,
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0x51, 0x63,
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0x47, 0x66,
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0x48, 0x66,
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0x4d, 0x1a,
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0x49, 0x08,
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0x4a, 0x9b };
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struct lgdt330x_state* state = fe->demodulator_priv;
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/* Use 50MHz parameter values from spec sheet since xtal is 50 */
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static u8 top_ctrl_cfg[] = { TOP_CONTROL, 0x03 };
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static u8 vsb_freq_cfg[] = { VSB_CARRIER_FREQ0, 0x00, 0x87, 0x8e, 0x01 };
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static u8 demux_ctrl_cfg[] = { DEMUX_CONTROL, 0xfb };
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static u8 agc_rf_cfg[] = { AGC_RF_BANDWIDTH0, 0x40, 0x93, 0x00 };
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static u8 agc_ctrl_cfg[] = { AGC_FUNC_CTRL2, 0xc6, 0x40 };
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static u8 agc_delay_cfg[] = { AGC_DELAY0, 0x07, 0x00, 0xfe };
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static u8 agc_loop_cfg[] = { AGC_LOOP_BANDWIDTH0, 0x08, 0x9a };
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int err;
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/* Change only if we are actually changing the modulation */
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if (state->current_modulation != param->u.vsb.modulation) {
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switch(param->u.vsb.modulation) {
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case VSB_8:
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dprintk("%s: VSB_8 MODE\n", __FUNCTION__);
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/* Select VSB mode and serial MPEG interface */
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top_ctrl_cfg[1] = 0x07;
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/* Select VSB mode */
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top_ctrl_cfg[1] = 0x03;
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/* Select ANT connector if supported by card */
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if (state->config->pll_rf_set)
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state->config->pll_rf_set(fe, 1);
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if (state->config->demod_chip == LGDT3303) {
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err = i2c_write_demod_bytes(state, lgdt3303_8vsb_44_data,
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sizeof(lgdt3303_8vsb_44_data));
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}
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break;
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case QAM_64:
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dprintk("%s: QAM_64 MODE\n", __FUNCTION__);
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/* Select QAM_64 mode and serial MPEG interface */
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top_ctrl_cfg[1] = 0x04;
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/* Select QAM_64 mode */
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top_ctrl_cfg[1] = 0x00;
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/* Select CABLE connector if supported by card */
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if (state->config->pll_rf_set)
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state->config->pll_rf_set(fe, 0);
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if (state->config->demod_chip == LGDT3303) {
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err = i2c_write_demod_bytes(state, lgdt3303_qam_data,
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sizeof(lgdt3303_qam_data));
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}
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break;
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case QAM_256:
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dprintk("%s: QAM_256 MODE\n", __FUNCTION__);
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/* Select QAM_256 mode and serial MPEG interface */
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top_ctrl_cfg[1] = 0x05;
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/* Select QAM_256 mode */
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top_ctrl_cfg[1] = 0x01;
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/* Select CABLE connector if supported by card */
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if (state->config->pll_rf_set)
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state->config->pll_rf_set(fe, 0);
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if (state->config->demod_chip == LGDT3303) {
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err = i2c_write_demod_bytes(state, lgdt3303_qam_data,
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sizeof(lgdt3303_qam_data));
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}
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break;
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default:
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printk(KERN_WARNING "lgdt330x: %s: Modulation type(%d) UNSUPPORTED\n", __FUNCTION__, param->u.vsb.modulation);
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return -1;
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}
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/* Initializations common to all modes */
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/*
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* select serial or parallel MPEG harware interface
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* Serial: 0x04 for LGDT3302 or 0x40 for LGDT3303
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* Parallel: 0x00
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*/
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top_ctrl_cfg[1] |= state->config->serial_mpeg;
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/* Select the requested mode */
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i2c_writebytes(state, state->config->demod_address,
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top_ctrl_cfg, sizeof(top_ctrl_cfg));
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/* Change the value of IFBW[11:0]
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of AGC IF/RF loop filter bandwidth register */
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i2c_writebytes(state, state->config->demod_address,
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agc_rf_cfg, sizeof(agc_rf_cfg));
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/* Change the value of bit 6, 'nINAGCBY' and
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'NSSEL[1:0] of ACG function control register 2 */
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/* Change the value of bit 6 'RFFIX'
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of AGC function control register 3 */
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i2c_writebytes(state, state->config->demod_address,
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agc_ctrl_cfg, sizeof(agc_ctrl_cfg));
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/* Change the TPCLK pin polarity
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data is valid on falling clock */
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i2c_writebytes(state, state->config->demod_address,
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demux_ctrl_cfg, sizeof(demux_ctrl_cfg));
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/* Change the value of NCOCTFV[25:0] of carrier
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recovery center frequency register */
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i2c_writebytes(state, state->config->demod_address,
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vsb_freq_cfg, sizeof(vsb_freq_cfg));
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/* Set the value of 'INLVTHD' register 0x2a/0x2c to 0x7fe */
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i2c_writebytes(state, state->config->demod_address,
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agc_delay_cfg, sizeof(agc_delay_cfg));
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/* Change the value of IAGCBW[15:8]
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of inner AGC loop filter bandwith */
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i2c_writebytes(state, state->config->demod_address,
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agc_loop_cfg, sizeof(agc_loop_cfg));
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i2c_write_demod_bytes(state, top_ctrl_cfg,
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sizeof(top_ctrl_cfg));
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state->config->set_ts_params(fe, 0);
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state->current_modulation = param->u.vsb.modulation;
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}
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/* Change only if we are actually changing the channel */
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if (state->current_frequency != param->frequency) {
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u8 buf[5];
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struct i2c_msg msg = { .flags = 0, .buf = &buf[1], .len = 4 };
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int err;
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state->config->pll_set(fe, param, buf);
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msg.addr = buf[0];
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dprintk("%s: tuner at 0x%02x bytes: 0x%02x 0x%02x "
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"0x%02x 0x%02x\n", __FUNCTION__,
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buf[0],buf[1],buf[2],buf[3],buf[4]);
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, buf[0], buf[1], err);
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if (err < 0)
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return err;
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else
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return -EREMOTEIO;
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}
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#if 0
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/* Check the status of the tuner pll */
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i2c_readbytes(state, buf[0], &buf[1], 1);
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dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[1]);
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#endif
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/* Update current frequency */
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/* Tune to the new frequency */
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state->config->pll_set(fe, param);
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/* Keep track of the new frequency */
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state->current_frequency = param->frequency;
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}
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lgdt330x_SwReset(state);
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@ -328,21 +437,15 @@ static int lgdt330x_get_frontend(struct dvb_frontend* fe,
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return 0;
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}
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static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
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static int lgdt3302_read_status(struct dvb_frontend* fe, fe_status_t* status)
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{
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struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
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struct lgdt330x_state* state = fe->demodulator_priv;
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u8 buf[3];
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*status = 0; /* Reset status result */
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/*
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* You must set the Mask bits to 1 in the IRQ_MASK in order
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* to see that status bit in the IRQ_STATUS register.
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* This is done in SwReset();
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*/
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/* AGC status register */
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i2c_selectreadbytes(state, AGC_STATUS, buf, 1);
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i2c_read_demod_bytes(state, AGC_STATUS, buf, 1);
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dprintk("%s: AGC_STATUS = 0x%02x\n", __FUNCTION__, buf[0]);
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if ((buf[0] & 0x0c) == 0x8){
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/* Test signal does not exist flag */
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@ -353,16 +456,15 @@ static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
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return 0;
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}
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/*
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* You must set the Mask bits to 1 in the IRQ_MASK in order
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* to see that status bit in the IRQ_STATUS register.
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* This is done in SwReset();
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*/
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/* signal status */
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i2c_selectreadbytes(state, TOP_CONTROL, buf, sizeof(buf));
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i2c_read_demod_bytes(state, TOP_CONTROL, buf, sizeof(buf));
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dprintk("%s: TOP_CONTROL = 0x%02x, IRO_MASK = 0x%02x, IRQ_STATUS = 0x%02x\n", __FUNCTION__, buf[0], buf[1], buf[2]);
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#if 0
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/* Alternative method to check for a signal */
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/* using the SNR good/bad interrupts. */
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if ((buf[2] & 0x30) == 0x10)
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*status |= FE_HAS_SIGNAL;
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#endif
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/* sync status */
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if ((buf[2] & 0x03) == 0x01) {
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@ -376,7 +478,7 @@ static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
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}
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/* Carrier Recovery Lock Status Register */
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i2c_selectreadbytes(state, CARRIER_LOCK, buf, 1);
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i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1);
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dprintk("%s: CARRIER_LOCK = 0x%02x\n", __FUNCTION__, buf[0]);
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switch (state->current_modulation) {
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case QAM_256:
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@ -396,13 +498,75 @@ static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
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return 0;
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}
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static int lgdt330x_read_signal_strength(struct dvb_frontend* fe, u16* strength)
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static int lgdt3303_read_status(struct dvb_frontend* fe, fe_status_t* status)
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{
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/* not directly available. */
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struct lgdt330x_state* state = fe->demodulator_priv;
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int err;
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u8 buf[3];
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*status = 0; /* Reset status result */
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/* lgdt3303 AGC status register */
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err = i2c_read_demod_bytes(state, 0x58, buf, 1);
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if (err < 0)
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return err;
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dprintk("%s: AGC_STATUS = 0x%02x\n", __FUNCTION__, buf[0]);
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if ((buf[0] & 0x21) == 0x01){
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/* Test input signal does not exist flag */
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/* as well as the AGC lock flag. */
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*status |= FE_HAS_SIGNAL;
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} else {
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/* Without a signal all other status bits are meaningless */
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return 0;
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}
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/* Carrier Recovery Lock Status Register */
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i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1);
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dprintk("%s: CARRIER_LOCK = 0x%02x\n", __FUNCTION__, buf[0]);
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switch (state->current_modulation) {
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case QAM_256:
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case QAM_64:
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/* Need to undestand why there are 3 lock levels here */
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if ((buf[0] & 0x07) == 0x07)
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*status |= FE_HAS_CARRIER;
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else
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break;
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i2c_read_demod_bytes(state, 0x8a, buf, 1);
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if ((buf[0] & 0x04) == 0x04)
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*status |= FE_HAS_SYNC;
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if ((buf[0] & 0x01) == 0x01)
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*status |= FE_HAS_LOCK;
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if ((buf[0] & 0x08) == 0x08)
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*status |= FE_HAS_VITERBI;
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break;
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case VSB_8:
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if ((buf[0] & 0x80) == 0x80)
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*status |= FE_HAS_CARRIER;
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|
|
else
|
|
|
|
|
break;
|
|
|
|
|
i2c_read_demod_bytes(state, 0x38, buf, 1);
|
|
|
|
|
if ((buf[0] & 0x02) == 0x00)
|
|
|
|
|
*status |= FE_HAS_SYNC;
|
|
|
|
|
if ((buf[0] & 0x01) == 0x01) {
|
|
|
|
|
*status |= FE_HAS_LOCK;
|
|
|
|
|
*status |= FE_HAS_VITERBI;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
printk("KERN_WARNING lgdt330x: %s: Modulation set to unsupported value\n", __FUNCTION__);
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int lgdt330x_read_snr(struct dvb_frontend* fe, u16* snr)
|
|
|
|
|
static int lgdt330x_read_signal_strength(struct dvb_frontend* fe, u16* strength)
|
|
|
|
|
{
|
|
|
|
|
/* not directly available. */
|
|
|
|
|
*strength = 0;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int lgdt3302_read_snr(struct dvb_frontend* fe, u16* snr)
|
|
|
|
|
{
|
|
|
|
|
#ifdef SNR_IN_DB
|
|
|
|
|
/*
|
|
|
|
@ -451,7 +615,7 @@ static int lgdt330x_read_snr(struct dvb_frontend* fe, u16* snr)
|
|
|
|
|
91, 115, 144, 182, 229, 288, 362, 456, 574, 722,
|
|
|
|
|
909, 1144, 1440, 1813, 2282, 2873, 3617, 4553, 5732, 7216,
|
|
|
|
|
9084, 11436, 14396, 18124, 22817, 28724, 36161, 45524, 57312, 72151,
|
|
|
|
|
90833, 114351, 143960, 181235, 228161, 0x040000
|
|
|
|
|
90833, 114351, 143960, 181235, 228161, 0x080000
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static u8 buf[5];/* read data buffer */
|
|
|
|
@ -459,8 +623,8 @@ static int lgdt330x_read_snr(struct dvb_frontend* fe, u16* snr)
|
|
|
|
|
static u32 snr_db; /* index into SNR_EQ[] */
|
|
|
|
|
struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
|
|
|
|
|
|
|
|
|
|
/* read both equalizer and pase tracker noise data */
|
|
|
|
|
i2c_selectreadbytes(state, EQPH_ERR0, buf, sizeof(buf));
|
|
|
|
|
/* read both equalizer and phase tracker noise data */
|
|
|
|
|
i2c_read_demod_bytes(state, EQPH_ERR0, buf, sizeof(buf));
|
|
|
|
|
|
|
|
|
|
if (state->current_modulation == VSB_8) {
|
|
|
|
|
/* Equalizer Mean-Square Error Register for VSB */
|
|
|
|
@ -496,19 +660,20 @@ static int lgdt330x_read_snr(struct dvb_frontend* fe, u16* snr)
|
|
|
|
|
struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
|
|
|
|
|
|
|
|
|
|
/* read both equalizer and pase tracker noise data */
|
|
|
|
|
i2c_selectreadbytes(state, EQPH_ERR0, buf, sizeof(buf));
|
|
|
|
|
i2c_read_demod_bytes(state, EQPH_ERR0, buf, sizeof(buf));
|
|
|
|
|
|
|
|
|
|
if (state->current_modulation == VSB_8) {
|
|
|
|
|
/* Equalizer Mean-Square Error Register for VSB */
|
|
|
|
|
noise = ((buf[0] & 7) << 16) | (buf[1] << 8) | buf[2];
|
|
|
|
|
} else {
|
|
|
|
|
/* Phase Tracker Mean-Square Error Register for QAM */
|
|
|
|
|
/* Phase Tracker Mean-Square Error Register for VSB */
|
|
|
|
|
noise = ((buf[0] & 7<<3) << 13) | (buf[3] << 8) | buf[4];
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
|
|
/* Carrier Recovery Mean-Square Error for QAM */
|
|
|
|
|
i2c_read_demod_bytes(state, 0x1a, buf, 2);
|
|
|
|
|
noise = ((buf[0] & 3) << 8) | buf[1];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Small values for noise mean signal is better so invert noise */
|
|
|
|
|
/* Noise is 19 bit value so discard 3 LSB*/
|
|
|
|
|
*snr = ~noise>>3;
|
|
|
|
|
*snr = ~noise;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
dprintk("%s: noise = 0x%05x, snr = %idb\n",__FUNCTION__, noise, *snr);
|
|
|
|
@ -516,6 +681,32 @@ static int lgdt330x_read_snr(struct dvb_frontend* fe, u16* snr)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int lgdt3303_read_snr(struct dvb_frontend* fe, u16* snr)
|
|
|
|
|
{
|
|
|
|
|
/* Return the raw noise value */
|
|
|
|
|
static u8 buf[5];/* read data buffer */
|
|
|
|
|
static u32 noise; /* noise value */
|
|
|
|
|
struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
|
|
|
|
|
|
|
|
|
|
if (state->current_modulation == VSB_8) {
|
|
|
|
|
|
|
|
|
|
/* Phase Tracker Mean-Square Error Register for VSB */
|
|
|
|
|
noise = ((buf[0] & 7) << 16) | (buf[3] << 8) | buf[4];
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
|
|
/* Carrier Recovery Mean-Square Error for QAM */
|
|
|
|
|
i2c_read_demod_bytes(state, 0x1a, buf, 2);
|
|
|
|
|
noise = (buf[0] << 8) | buf[1];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Small values for noise mean signal is better so invert noise */
|
|
|
|
|
*snr = ~noise;
|
|
|
|
|
|
|
|
|
|
dprintk("%s: noise = 0x%05x, snr = %idb\n",__FUNCTION__, noise, *snr);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int lgdt330x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings)
|
|
|
|
|
{
|
|
|
|
|
/* I have no idea about this - it may not be needed */
|
|
|
|
@ -531,7 +722,8 @@ static void lgdt330x_release(struct dvb_frontend* fe)
|
|
|
|
|
kfree(state);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct dvb_frontend_ops lgdt330x_ops;
|
|
|
|
|
static struct dvb_frontend_ops lgdt3302_ops;
|
|
|
|
|
static struct dvb_frontend_ops lgdt3303_ops;
|
|
|
|
|
|
|
|
|
|
struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config,
|
|
|
|
|
struct i2c_adapter* i2c)
|
|
|
|
@ -548,9 +740,19 @@ struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config,
|
|
|
|
|
/* Setup the state */
|
|
|
|
|
state->config = config;
|
|
|
|
|
state->i2c = i2c;
|
|
|
|
|
memcpy(&state->ops, &lgdt330x_ops, sizeof(struct dvb_frontend_ops));
|
|
|
|
|
switch (config->demod_chip) {
|
|
|
|
|
case LGDT3302:
|
|
|
|
|
memcpy(&state->ops, &lgdt3302_ops, sizeof(struct dvb_frontend_ops));
|
|
|
|
|
break;
|
|
|
|
|
case LGDT3303:
|
|
|
|
|
memcpy(&state->ops, &lgdt3303_ops, sizeof(struct dvb_frontend_ops));
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
goto error;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Verify communication with demod chip */
|
|
|
|
|
if (i2c_selectreadbytes(state, 2, buf, 1))
|
|
|
|
|
if (i2c_read_demod_bytes(state, 2, buf, 1))
|
|
|
|
|
goto error;
|
|
|
|
|
|
|
|
|
|
state->current_frequency = -1;
|
|
|
|
@ -568,9 +770,9 @@ error:
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct dvb_frontend_ops lgdt330x_ops = {
|
|
|
|
|
static struct dvb_frontend_ops lgdt3302_ops = {
|
|
|
|
|
.info = {
|
|
|
|
|
.name= "LG Electronics lgdt330x VSB/QAM Frontend",
|
|
|
|
|
.name= "LG Electronics LGDT3302/LGDT3303 VSB/QAM Frontend",
|
|
|
|
|
.type = FE_ATSC,
|
|
|
|
|
.frequency_min= 54000000,
|
|
|
|
|
.frequency_max= 858000000,
|
|
|
|
@ -584,15 +786,39 @@ static struct dvb_frontend_ops lgdt330x_ops = {
|
|
|
|
|
.set_frontend = lgdt330x_set_parameters,
|
|
|
|
|
.get_frontend = lgdt330x_get_frontend,
|
|
|
|
|
.get_tune_settings = lgdt330x_get_tune_settings,
|
|
|
|
|
.read_status = lgdt330x_read_status,
|
|
|
|
|
.read_status = lgdt3302_read_status,
|
|
|
|
|
.read_ber = lgdt330x_read_ber,
|
|
|
|
|
.read_signal_strength = lgdt330x_read_signal_strength,
|
|
|
|
|
.read_snr = lgdt330x_read_snr,
|
|
|
|
|
.read_snr = lgdt3302_read_snr,
|
|
|
|
|
.read_ucblocks = lgdt330x_read_ucblocks,
|
|
|
|
|
.release = lgdt330x_release,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("lgdt330x [DViCO FusionHDTV 3 Gold] (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver");
|
|
|
|
|
static struct dvb_frontend_ops lgdt3303_ops = {
|
|
|
|
|
.info = {
|
|
|
|
|
.name= "LG Electronics LGDT3303 VSB/QAM Frontend",
|
|
|
|
|
.type = FE_ATSC,
|
|
|
|
|
.frequency_min= 54000000,
|
|
|
|
|
.frequency_max= 858000000,
|
|
|
|
|
.frequency_stepsize= 62500,
|
|
|
|
|
/* Symbol rate is for all VSB modes need to check QAM */
|
|
|
|
|
.symbol_rate_min = 10762000,
|
|
|
|
|
.symbol_rate_max = 10762000,
|
|
|
|
|
.caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
|
|
|
|
|
},
|
|
|
|
|
.init = lgdt330x_init,
|
|
|
|
|
.set_frontend = lgdt330x_set_parameters,
|
|
|
|
|
.get_frontend = lgdt330x_get_frontend,
|
|
|
|
|
.get_tune_settings = lgdt330x_get_tune_settings,
|
|
|
|
|
.read_status = lgdt3303_read_status,
|
|
|
|
|
.read_ber = lgdt330x_read_ber,
|
|
|
|
|
.read_signal_strength = lgdt330x_read_signal_strength,
|
|
|
|
|
.read_snr = lgdt3303_read_snr,
|
|
|
|
|
.read_ucblocks = lgdt330x_read_ucblocks,
|
|
|
|
|
.release = lgdt330x_release,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("LGDT330X (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver");
|
|
|
|
|
MODULE_AUTHOR("Wilson Michaels");
|
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
|
|
|
|
@ -601,6 +827,5 @@ EXPORT_SYMBOL(lgdt330x_attach);
|
|
|
|
|
/*
|
|
|
|
|
* Local variables:
|
|
|
|
|
* c-basic-offset: 8
|
|
|
|
|
* compile-command: "make DVB=1"
|
|
|
|
|
* End:
|
|
|
|
|
*/
|
|
|
|
|