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[PATCH] dvb: lgdt330x frontend: some bug fixes & add lgdt3303 support

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- Structural changes within lgdt330x driver, framework now supports
  both chips... tested OK on lgdt3302 and lgdt3303.
- Add LG/TUA6034 dvb_pll_desc for ATSC with LG TDVS-H062F & DViCO FusionHDTV5.
- Fixed LGDT330X signal strength: For now, always set it to 0.
- Corrected LGDT330X boundary condition error in read_snr: dB calculation.

Signed-off-by: Mac Michaels <wmichaels1@earthlink.net>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Michael Krufky 2005-08-08 09:22:43 -07:00 committed by Linus Torvalds
parent 66aea23ff8
commit 1963c907b2
6 changed files with 445 additions and 175 deletions
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16
drivers/media/dvb/frontends/dvb-pll.c
View file

@ -225,6 +225,22 @@ struct dvb_pll_desc dvb_pll_tua6034 = {
};
EXPORT_SYMBOL(dvb_pll_tua6034);
/* Infineon TUA6034
* used in LG Innotek TDVS-H062F
*/
struct dvb_pll_desc dvb_pll_tdvs_tua6034 = {
.name = "LG/Infineon TUA6034",
.min = 54000000,
.max = 863000000,
.count = 3,
.entries = {
{ 160000000, 44000000, 62500, 0xce, 0x01 },
{ 455000000, 44000000, 62500, 0xce, 0x02 },
{ 999999999, 44000000, 62500, 0xce, 0x04 },
},
};
EXPORT_SYMBOL(dvb_pll_tdvs_tua6034);
/* Philips FMD1216ME
* used in Medion Hybrid PCMCIA card and USB Box
*/

1
drivers/media/dvb/frontends/dvb-pll.h
View file

@ -31,6 +31,7 @@ extern struct dvb_pll_desc dvb_pll_unknown_1;
extern struct dvb_pll_desc dvb_pll_tua6010xs;
extern struct dvb_pll_desc dvb_pll_env57h1xd5;
extern struct dvb_pll_desc dvb_pll_tua6034;
extern struct dvb_pll_desc dvb_pll_tdvs_tua6034;
extern struct dvb_pll_desc dvb_pll_tda665x;
extern struct dvb_pll_desc dvb_pll_fmd1216me;
extern struct dvb_pll_desc dvb_pll_tded4;

553
drivers/media/dvb/frontends/lgdt330x.c
View file

@ -1,11 +1,8 @@
/*
* Support for LGDT3302 & LGDT3303 (DViCO FusionHDTV Gold) - VSB/QAM
* Support for LGDT3302 and LGDT3303 - VSB/QAM
*
* Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net>
*
* Based on code from Kirk Lapray <kirk_lapray@bigfoot.com>
* Copyright (C) 2005
*
* 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
@ -25,11 +22,13 @@
/*
* NOTES ABOUT THIS DRIVER
*
* This driver supports DViCO FusionHDTV Gold under Linux.
* This Linux driver supports:
* DViCO FusionHDTV 3 Gold-Q
* DViCO FusionHDTV 3 Gold-T
* DViCO FusionHDTV 5 Gold
*
* TODO:
* BER and signal strength always return 0.
* Include support for LGDT3303
* signal strength always returns 0.
*
*/
@ -41,7 +40,6 @@
#include <asm/byteorder.h>
#include "dvb_frontend.h"
#include "dvb-pll.h"
#include "lgdt330x_priv.h"
#include "lgdt330x.h"
@ -70,55 +68,37 @@ struct lgdt330x_state
u32 current_frequency;
};
static int i2c_writebytes (struct lgdt330x_state* state,
u8 addr, /* demod_address or pll_address */
static int i2c_write_demod_bytes (struct lgdt330x_state* state,
u8 *buf, /* data bytes to send */
int len /* number of bytes to send */ )
{
u8 tmp[] = { buf[0], buf[1] };
struct i2c_msg msg =
{ .addr = addr, .flags = 0, .buf = tmp, .len = 2 };
int err;
{ .addr = state->config->demod_address,
.flags = 0,
.buf = buf,
.len = 2 };
int i;
int err;
for (i=1; i<len; i++) {
tmp[1] = buf[i];
for (i=0; i<len-1; i+=2){
if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err);
printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, msg.buf[0], msg.buf[1], err);
if (err < 0)
return err;
else
return -EREMOTEIO;
}
tmp[0]++;
msg.buf += 2;
}
return 0;
}
#if 0
static int i2c_readbytes (struct lgdt330x_state* state,
u8 addr, /* demod_address or pll_address */
u8 *buf, /* holds data bytes read */
int len /* number of bytes to read */ )
{
struct i2c_msg msg =
{ .addr = addr, .flags = I2C_M_RD, .buf = buf, .len = len };
int err;
if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
printk(KERN_WARNING "lgdt330x: %s error (addr %02x, err == %i)\n", __FUNCTION__, addr, err);
return -EREMOTEIO;
}
return 0;
}
#endif
/*
* This routine writes the register (reg) to the demod bus
* then reads the data returned for (len) bytes.
*/
static u8 i2c_selectreadbytes (struct lgdt330x_state* state,
static u8 i2c_read_demod_bytes (struct lgdt330x_state* state,
enum I2C_REG reg, u8* buf, int len)
{
u8 wr [] = { reg };
@ -139,7 +119,7 @@ static u8 i2c_selectreadbytes (struct lgdt330x_state* state,
}
/* Software reset */
int lgdt330x_SwReset(struct lgdt330x_state* state)
static int lgdt3302_SwReset(struct lgdt330x_state* state)
{
u8 ret;
u8 reset[] = {
@ -148,23 +128,83 @@ int lgdt330x_SwReset(struct lgdt330x_state* state)
* bits 5-0 are 1 to mask interrupts */
};
ret = i2c_writebytes(state,
state->config->demod_address,
ret = i2c_write_demod_bytes(state,
reset, sizeof(reset));
if (ret == 0) {
/* spec says reset takes 100 ns why wait */
/* mdelay(100); */ /* keep low for 100mS */
reset[1] = 0x7f; /* force reset high (inactive)
* and unmask interrupts */
ret = i2c_writebytes(state,
state->config->demod_address,
/* force reset high (inactive) and unmask interrupts */
reset[1] = 0x7f;
ret = i2c_write_demod_bytes(state,
reset, sizeof(reset));
}
/* Spec does not indicate a need for this either */
/*mdelay(5); */ /* wait 5 msec before doing more */
return ret;
}
static int lgdt3303_SwReset(struct lgdt330x_state* state)
{
u8 ret;
u8 reset[] = {
0x02,
0x00 /* bit 0 is active low software reset */
};
ret = i2c_write_demod_bytes(state,
reset, sizeof(reset));
if (ret == 0) {
/* force reset high (inactive) */
reset[1] = 0x01;
ret = i2c_write_demod_bytes(state,
reset, sizeof(reset));
}
return ret;
}
static int lgdt330x_SwReset(struct lgdt330x_state* state)
{
switch (state->config->demod_chip) {
case LGDT3302:
return lgdt3302_SwReset(state);
case LGDT3303:
return lgdt3303_SwReset(state);
default:
return -ENODEV;
}
}
#ifdef MUTE_TDA9887
static int i2c_write_ntsc_demod (struct lgdt330x_state* state, u8 buf[2])
{
struct i2c_msg msg =
{ .addr = 0x43,
.flags = 0,
.buf = buf,
.len = 2 };
int err;
if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, msg.buf[0], msg.buf[1], err);
if (err < 0)
return err;
else
return -EREMOTEIO;
}
return 0;
}
static void fiddle_with_ntsc_if_demod(struct lgdt330x_state* state)
{
// Experimental code
u8 buf0[] = {0x00, 0x20};
u8 buf1[] = {0x01, 0x00};
u8 buf2[] = {0x02, 0x00};
i2c_write_ntsc_demod(state, buf0);
i2c_write_ntsc_demod(state, buf1);
i2c_write_ntsc_demod(state, buf2);
}
#endif
static int lgdt330x_init(struct dvb_frontend* fe)
{
/* Hardware reset is done using gpio[0] of cx23880x chip.
@ -173,22 +213,101 @@ static int lgdt330x_init(struct dvb_frontend* fe)
* Maybe there needs to be a callable function in cx88-core or
* the caller of this function needs to do it. */
dprintk("%s entered\n", __FUNCTION__);
return lgdt330x_SwReset((struct lgdt330x_state*) fe->demodulator_priv);
/*
* Array of byte pairs <address, value>
* to initialize each different chip
*/
static u8 lgdt3302_init_data[] = {
/* Use 50MHz parameter values from spec sheet since xtal is 50 */
/* Change the value of NCOCTFV[25:0] of carrier
recovery center frequency register */
VSB_CARRIER_FREQ0, 0x00,
VSB_CARRIER_FREQ1, 0x87,
VSB_CARRIER_FREQ2, 0x8e,
VSB_CARRIER_FREQ3, 0x01,
/* Change the TPCLK pin polarity
data is valid on falling clock */
DEMUX_CONTROL, 0xfb,
/* Change the value of IFBW[11:0] of
AGC IF/RF loop filter bandwidth register */
AGC_RF_BANDWIDTH0, 0x40,
AGC_RF_BANDWIDTH1, 0x93,
AGC_RF_BANDWIDTH2, 0x00,
/* Change the value of bit 6, 'nINAGCBY' and
'NSSEL[1:0] of ACG function control register 2 */
AGC_FUNC_CTRL2, 0xc6,
/* Change the value of bit 6 'RFFIX'
of AGC function control register 3 */
AGC_FUNC_CTRL3, 0x40,
/* Set the value of 'INLVTHD' register 0x2a/0x2c
to 0x7fe */
AGC_DELAY0, 0x07,
AGC_DELAY2, 0xfe,
/* Change the value of IAGCBW[15:8]
of inner AGC loop filter bandwith */
AGC_LOOP_BANDWIDTH0, 0x08,
AGC_LOOP_BANDWIDTH1, 0x9a
};
static u8 lgdt3303_init_data[] = {
0x4c, 0x14
};
struct lgdt330x_state* state = fe->demodulator_priv;
char *chip_name;
int err;
switch (state->config->demod_chip) {
case LGDT3302:
chip_name = "LGDT3302";
err = i2c_write_demod_bytes(state, lgdt3302_init_data,
sizeof(lgdt3302_init_data));
break;
case LGDT3303:
chip_name = "LGDT3303";
err = i2c_write_demod_bytes(state, lgdt3303_init_data,
sizeof(lgdt3303_init_data));
#ifdef MUTE_TDA9887
fiddle_with_ntsc_if_demod(state);
#endif
break;
default:
chip_name = "undefined";
printk (KERN_WARNING "Only LGDT3302 and LGDT3303 are supported chips.\n");
err = -ENODEV;
}
dprintk("%s entered as %s\n", __FUNCTION__, chip_name);
if (err < 0)
return err;
return lgdt330x_SwReset(state);
}
static int lgdt330x_read_ber(struct dvb_frontend* fe, u32* ber)
{
*ber = 0; /* Dummy out for now */
*ber = 0; /* Not supplied by the demod chips */
return 0;
}
static int lgdt330x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
struct lgdt330x_state* state = fe->demodulator_priv;
int err;
u8 buf[2];
i2c_selectreadbytes(state, PACKET_ERR_COUNTER1, buf, sizeof(buf));
switch (state->config->demod_chip) {
case LGDT3302:
err = i2c_read_demod_bytes(state, LGDT3302_PACKET_ERR_COUNTER1,
buf, sizeof(buf));
break;
case LGDT3303:
err = i2c_read_demod_bytes(state, LGDT3303_PACKET_ERR_COUNTER1,
buf, sizeof(buf));
break;
default:
printk(KERN_WARNING
"Only LGDT3302 and LGDT3303 are supported chips.\n");
err = -ENODEV;
}
*ucblocks = (buf[0] << 8) | buf[1];
return 0;
@ -197,123 +316,113 @@ static int lgdt330x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
static int lgdt330x_set_parameters(struct dvb_frontend* fe,
struct dvb_frontend_parameters *param)
{
struct lgdt330x_state* state =
(struct lgdt330x_state*) fe->demodulator_priv;
/*
* Array of byte pairs <address, value>
* to initialize 8VSB for lgdt3303 chip 50 MHz IF
*/
static u8 lgdt3303_8vsb_44_data[] = {
0x04, 0x00,
0x0d, 0x40,
0x0e, 0x87,
0x0f, 0x8e,
0x10, 0x01,
0x47, 0x8b };
/*
* Array of byte pairs <address, value>
* to initialize QAM for lgdt3303 chip
*/
static u8 lgdt3303_qam_data[] = {
0x04, 0x00,
0x0d, 0x00,
0x0e, 0x00,
0x0f, 0x00,
0x10, 0x00,
0x51, 0x63,
0x47, 0x66,
0x48, 0x66,
0x4d, 0x1a,
0x49, 0x08,
0x4a, 0x9b };
struct lgdt330x_state* state = fe->demodulator_priv;
/* Use 50MHz parameter values from spec sheet since xtal is 50 */
static u8 top_ctrl_cfg[] = { TOP_CONTROL, 0x03 };
static u8 vsb_freq_cfg[] = { VSB_CARRIER_FREQ0, 0x00, 0x87, 0x8e, 0x01 };
static u8 demux_ctrl_cfg[] = { DEMUX_CONTROL, 0xfb };
static u8 agc_rf_cfg[] = { AGC_RF_BANDWIDTH0, 0x40, 0x93, 0x00 };
static u8 agc_ctrl_cfg[] = { AGC_FUNC_CTRL2, 0xc6, 0x40 };
static u8 agc_delay_cfg[] = { AGC_DELAY0, 0x07, 0x00, 0xfe };
static u8 agc_loop_cfg[] = { AGC_LOOP_BANDWIDTH0, 0x08, 0x9a };
int err;
/* Change only if we are actually changing the modulation */
if (state->current_modulation != param->u.vsb.modulation) {
switch(param->u.vsb.modulation) {
case VSB_8:
dprintk("%s: VSB_8 MODE\n", __FUNCTION__);
/* Select VSB mode and serial MPEG interface */
top_ctrl_cfg[1] = 0x07;
/* Select VSB mode */
top_ctrl_cfg[1] = 0x03;
/* Select ANT connector if supported by card */
if (state->config->pll_rf_set)
state->config->pll_rf_set(fe, 1);
if (state->config->demod_chip == LGDT3303) {
err = i2c_write_demod_bytes(state, lgdt3303_8vsb_44_data,
sizeof(lgdt3303_8vsb_44_data));
}
break;
case QAM_64:
dprintk("%s: QAM_64 MODE\n", __FUNCTION__);
/* Select QAM_64 mode and serial MPEG interface */
top_ctrl_cfg[1] = 0x04;
/* Select QAM_64 mode */
top_ctrl_cfg[1] = 0x00;
/* Select CABLE connector if supported by card */
if (state->config->pll_rf_set)
state->config->pll_rf_set(fe, 0);
if (state->config->demod_chip == LGDT3303) {
err = i2c_write_demod_bytes(state, lgdt3303_qam_data,
sizeof(lgdt3303_qam_data));
}
break;
case QAM_256:
dprintk("%s: QAM_256 MODE\n", __FUNCTION__);
/* Select QAM_256 mode and serial MPEG interface */
top_ctrl_cfg[1] = 0x05;
/* Select QAM_256 mode */
top_ctrl_cfg[1] = 0x01;
/* Select CABLE connector if supported by card */
if (state->config->pll_rf_set)
state->config->pll_rf_set(fe, 0);
if (state->config->demod_chip == LGDT3303) {
err = i2c_write_demod_bytes(state, lgdt3303_qam_data,
sizeof(lgdt3303_qam_data));
}
break;
default:
printk(KERN_WARNING "lgdt330x: %s: Modulation type(%d) UNSUPPORTED\n", __FUNCTION__, param->u.vsb.modulation);
return -1;
}
/* Initializations common to all modes */
/*
* select serial or parallel MPEG harware interface
* Serial: 0x04 for LGDT3302 or 0x40 for LGDT3303
* Parallel: 0x00
*/
top_ctrl_cfg[1] |= state->config->serial_mpeg;
/* Select the requested mode */
i2c_writebytes(state, state->config->demod_address,
top_ctrl_cfg, sizeof(top_ctrl_cfg));
/* Change the value of IFBW[11:0]
of AGC IF/RF loop filter bandwidth register */
i2c_writebytes(state, state->config->demod_address,
agc_rf_cfg, sizeof(agc_rf_cfg));
/* Change the value of bit 6, 'nINAGCBY' and
'NSSEL[1:0] of ACG function control register 2 */
/* Change the value of bit 6 'RFFIX'
of AGC function control register 3 */
i2c_writebytes(state, state->config->demod_address,
agc_ctrl_cfg, sizeof(agc_ctrl_cfg));
/* Change the TPCLK pin polarity
data is valid on falling clock */
i2c_writebytes(state, state->config->demod_address,
demux_ctrl_cfg, sizeof(demux_ctrl_cfg));
/* Change the value of NCOCTFV[25:0] of carrier
recovery center frequency register */
i2c_writebytes(state, state->config->demod_address,
vsb_freq_cfg, sizeof(vsb_freq_cfg));
/* Set the value of 'INLVTHD' register 0x2a/0x2c to 0x7fe */
i2c_writebytes(state, state->config->demod_address,
agc_delay_cfg, sizeof(agc_delay_cfg));
/* Change the value of IAGCBW[15:8]
of inner AGC loop filter bandwith */
i2c_writebytes(state, state->config->demod_address,
agc_loop_cfg, sizeof(agc_loop_cfg));
i2c_write_demod_bytes(state, top_ctrl_cfg,
sizeof(top_ctrl_cfg));
state->config->set_ts_params(fe, 0);
state->current_modulation = param->u.vsb.modulation;
}
/* Change only if we are actually changing the channel */
if (state->current_frequency != param->frequency) {
u8 buf[5];
struct i2c_msg msg = { .flags = 0, .buf = &buf[1], .len = 4 };
int err;
state->config->pll_set(fe, param, buf);
msg.addr = buf[0];
dprintk("%s: tuner at 0x%02x bytes: 0x%02x 0x%02x "
"0x%02x 0x%02x\n", __FUNCTION__,
buf[0],buf[1],buf[2],buf[3],buf[4]);
if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, buf[0], buf[1], err);
if (err < 0)
return err;
else
return -EREMOTEIO;
}
#if 0
/* Check the status of the tuner pll */
i2c_readbytes(state, buf[0], &buf[1], 1);
dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[1]);
#endif
/* Update current frequency */
/* Tune to the new frequency */
state->config->pll_set(fe, param);
/* Keep track of the new frequency */
state->current_frequency = param->frequency;
}
lgdt330x_SwReset(state);
@ -328,21 +437,15 @@ static int lgdt330x_get_frontend(struct dvb_frontend* fe,
return 0;
}
static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
static int lgdt3302_read_status(struct dvb_frontend* fe, fe_status_t* status)
{
struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
struct lgdt330x_state* state = fe->demodulator_priv;
u8 buf[3];
*status = 0; /* Reset status result */
/*
* You must set the Mask bits to 1 in the IRQ_MASK in order
* to see that status bit in the IRQ_STATUS register.
* This is done in SwReset();
*/
/* AGC status register */
i2c_selectreadbytes(state, AGC_STATUS, buf, 1);
i2c_read_demod_bytes(state, AGC_STATUS, buf, 1);
dprintk("%s: AGC_STATUS = 0x%02x\n", __FUNCTION__, buf[0]);
if ((buf[0] & 0x0c) == 0x8){
/* Test signal does not exist flag */
@ -353,16 +456,15 @@ static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
return 0;
}
/*
* You must set the Mask bits to 1 in the IRQ_MASK in order
* to see that status bit in the IRQ_STATUS register.
* This is done in SwReset();
*/
/* signal status */
i2c_selectreadbytes(state, TOP_CONTROL, buf, sizeof(buf));
i2c_read_demod_bytes(state, TOP_CONTROL, buf, sizeof(buf));
dprintk("%s: TOP_CONTROL = 0x%02x, IRO_MASK = 0x%02x, IRQ_STATUS = 0x%02x\n", __FUNCTION__, buf[0], buf[1], buf[2]);
#if 0
/* Alternative method to check for a signal */
/* using the SNR good/bad interrupts. */
if ((buf[2] & 0x30) == 0x10)
*status |= FE_HAS_SIGNAL;
#endif
/* sync status */
if ((buf[2] & 0x03) == 0x01) {
@ -376,7 +478,7 @@ static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
}
/* Carrier Recovery Lock Status Register */
i2c_selectreadbytes(state, CARRIER_LOCK, buf, 1);
i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1);
dprintk("%s: CARRIER_LOCK = 0x%02x\n", __FUNCTION__, buf[0]);
switch (state->current_modulation) {
case QAM_256:
@ -396,13 +498,75 @@ static int lgdt330x_read_status(struct dvb_frontend* fe, fe_status_t* status)
return 0;
}
static int lgdt330x_read_signal_strength(struct dvb_frontend* fe, u16* strength)
static int lgdt3303_read_status(struct dvb_frontend* fe, fe_status_t* status)
{
/* not directly available. */
struct lgdt330x_state* state = fe->demodulator_priv;
int err;
u8 buf[3];
*status = 0; /* Reset status result */
/* lgdt3303 AGC status register */
err = i2c_read_demod_bytes(state, 0x58, buf, 1);
if (err < 0)
return err;
dprintk("%s: AGC_STATUS = 0x%02x\n", __FUNCTION__, buf[0]);
if ((buf[0] & 0x21) == 0x01){
/* Test input signal does not exist flag */
/* as well as the AGC lock flag. */
*status |= FE_HAS_SIGNAL;
} else {
/* Without a signal all other status bits are meaningless */
return 0;
}
/* Carrier Recovery Lock Status Register */
i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1);
dprintk("%s: CARRIER_LOCK = 0x%02x\n", __FUNCTION__, buf[0]);
switch (state->current_modulation) {
case QAM_256:
case QAM_64:
/* Need to undestand why there are 3 lock levels here */
if ((buf[0] & 0x07) == 0x07)
*status |= FE_HAS_CARRIER;
else
break;
i2c_read_demod_bytes(state, 0x8a, buf, 1);
if ((buf[0] & 0x04) == 0x04)
*status |= FE_HAS_SYNC;
if ((buf[0] & 0x01) == 0x01)
*status |= FE_HAS_LOCK;
if ((buf[0] & 0x08) == 0x08)
*status |= FE_HAS_VITERBI;
break;
case VSB_8:
if ((buf[0] & 0x80) == 0x80)
*status |= FE_HAS_CARRIER;
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:
*/

16
drivers/media/dvb/frontends/lgdt330x.h
View file

@ -1,5 +1,5 @@
/*
* Support for LGDT3302 & LGDT3303 (DViCO FustionHDTV Gold) - VSB/QAM
* Support for LGDT3302 and LGDT3303 - VSB/QAM
*
* Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net>
*
@ -24,14 +24,26 @@
#include <linux/dvb/frontend.h>
typedef enum lg_chip_t {
UNDEFINED,
LGDT3302,
LGDT3303
}lg_chip_type;
struct lgdt330x_config
{
/* The demodulator's i2c address */
u8 demod_address;
/* LG demodulator chip LGDT3302 or LGDT3303 */
lg_chip_type demod_chip;
/* MPEG hardware interface - 0:parallel 1:serial */
int serial_mpeg;
/* PLL interface */
int (*pll_rf_set) (struct dvb_frontend* fe, int index);
int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pll_address);
int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
/* Need to set device param for start_dma */
int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);

8
drivers/media/dvb/frontends/lgdt330x_priv.h
View file

@ -1,5 +1,5 @@
/*
* Support for LGDT3302 & LGDT3303 (DViCO FustionHDTV Gold) - VSB/QAM
* Support for LGDT3302 and LGDT3303 - VSB/QAM
*
* Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net>
*
@ -57,8 +57,10 @@ enum I2C_REG {
PH_ERR1= 0x4a,
PH_ERR2= 0x4b,
DEMUX_CONTROL= 0x66,
PACKET_ERR_COUNTER1= 0x6a,
PACKET_ERR_COUNTER2= 0x6b,
LGDT3302_PACKET_ERR_COUNTER1= 0x6a,
LGDT3302_PACKET_ERR_COUNTER2= 0x6b,
LGDT3303_PACKET_ERR_COUNTER1= 0x8b,
LGDT3303_PACKET_ERR_COUNTER2= 0x8c,
};
#endif /* _LGDT330X_PRIV_ */

26
drivers/media/video/cx88/cx88-dvb.c
View file

@ -1,5 +1,5 @@
/*
* $Id: cx88-dvb.c,v 1.54 2005/07/25 05:13:50 mkrufky Exp $
* $Id: cx88-dvb.c,v 1.58 2005/08/07 09:24:08 mkrufky Exp $
*
* device driver for Conexant 2388x based TV cards
* MPEG Transport Stream (DVB) routines
@ -208,14 +208,26 @@ static struct or51132_config pchdtv_hd3000 = {
#ifdef HAVE_LGDT330X
static int lgdt330x_pll_set(struct dvb_frontend* fe,
struct dvb_frontend_parameters* params,
u8* pllbuf)
struct dvb_frontend_parameters* params)
{
struct cx8802_dev *dev= fe->dvb->priv;
u8 buf[4];
struct i2c_msg msg =
{ .addr = dev->core->pll_addr, .flags = 0, .buf = buf, .len = 4 };
int err;
pllbuf[0] = dev->core->pll_addr;
dvb_pll_configure(dev->core->pll_desc, &pllbuf[1],
params->frequency, 0);
dvb_pll_configure(dev->core->pll_desc, buf, params->frequency, 0);
dprintk(1, "%s: tuner at 0x%02x bytes: 0x%02x 0x%02x 0x%02x 0x%02x\n",
__FUNCTION__, msg.addr, buf[0],buf[1],buf[2],buf[3]);
if ((err = i2c_transfer(&dev->core->i2c_adap, &msg, 1)) != 1) {
printk(KERN_WARNING "cx88-dvb: %s error "
"(addr %02x <- %02x, err = %i)\n",
__FUNCTION__, buf[0], buf[1], err);
if (err < 0)
return err;
else
return -EREMOTEIO;
}
return 0;
}
@ -244,6 +256,8 @@ static int lgdt330x_set_ts_param(struct dvb_frontend* fe, int is_punctured)
static struct lgdt330x_config fusionhdtv_3_gold = {
.demod_address = 0x0e,
.demod_chip = LGDT3302,
.serial_mpeg = 0x04, /* TPSERIAL for 3302 in TOP_CONTROL */
.pll_set = lgdt330x_pll_set,
.set_ts_params = lgdt330x_set_ts_param,
};