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[media] DVB: add support for LG Electronics LGDT3306A ATSC/QAM-B Demodulator

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This ATSC/QAM-B demodulator is used by several new devices.

Add support for it. Other patches will fix CodingStyle issues.

Signed-off-by: Fred Richter <frichter@hauppauge.com>
Signed-off-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Fred Richter 2014-03-24 19:56:00 -03:00 committed by Mauro Carvalho Chehab
parent e6d72d2051
commit b63b36fa44
4 changed files with 2113 additions and 0 deletions
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8
drivers/media/dvb-frontends/Kconfig
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@ -577,6 +577,14 @@ config DVB_LGDT3305
An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
to support this frontend.
config DVB_LGDT3306A
tristate "LG Electronics LGDT3306A based"
depends on DVB_CORE && I2C
default m if !MEDIA_SUBDRV_AUTOSELECT
help
An ATSC 8VSB and QAM-B 64/256 demodulator module. Say Y when you want
to support this frontend.
config DVB_LG2160
tristate "LG Electronics LG216x based"
depends on DVB_CORE && I2C

1
drivers/media/dvb-frontends/Makefile
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@ -54,6 +54,7 @@ obj-$(CONFIG_DVB_BCM3510) += bcm3510.o
obj-$(CONFIG_DVB_S5H1420) += s5h1420.o
obj-$(CONFIG_DVB_LGDT330X) += lgdt330x.o
obj-$(CONFIG_DVB_LGDT3305) += lgdt3305.o
obj-$(CONFIG_DVB_LGDT3306A) += lgdt3306a.o
obj-$(CONFIG_DVB_LG2160) += lg2160.o
obj-$(CONFIG_DVB_CX24123) += cx24123.o
obj-$(CONFIG_DVB_LNBP21) += lnbp21.o

2024
drivers/media/dvb-frontends/lgdt3306a.c Normal file
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File diff suppressed because it is too large Load diff

80
drivers/media/dvb-frontends/lgdt3306a.h Normal file
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@ -0,0 +1,80 @@
/*
* Support for LGDT3306A - 8VSB/QAM-B
*
* Copyright (C) 2013,2014 Fred Richter <frichter@hauppauge.com>
* based on lgdt3305.[ch] by Michael Krufky
*
* 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 _LGDT3306A_H_
#define _LGDT3306A_H_
#include <linux/i2c.h>
#include "dvb_frontend.h"
enum lgdt3306a_mpeg_mode {
LGDT3306A_MPEG_PARALLEL = 0,
LGDT3306A_MPEG_SERIAL = 1,
};
enum lgdt3306a_tp_clock_edge {
LGDT3306A_TPCLK_RISING_EDGE = 0,
LGDT3306A_TPCLK_FALLING_EDGE = 1,
};
enum lgdt3306a_tp_valid_polarity {
LGDT3306A_TP_VALID_LOW = 0,
LGDT3306A_TP_VALID_HIGH = 1,
};
struct lgdt3306a_config {
u8 i2c_addr;
/* user defined IF frequency in KHz */
u16 qam_if_khz;
u16 vsb_if_khz;
/* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
int deny_i2c_rptr:1;
/* spectral inversion - 0:disabled 1:enabled */
int spectral_inversion:1;
enum lgdt3306a_mpeg_mode mpeg_mode;
enum lgdt3306a_tp_clock_edge tpclk_edge;
enum lgdt3306a_tp_valid_polarity tpvalid_polarity;
int xtalMHz;//demod clock freq in MHz; 24 or 25 supported
};
#if defined(CONFIG_DVB_LGDT3306A) || (defined(CONFIG_DVB_LGDT3306A_MODULE) && \
defined(MODULE))
extern
struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config,
struct i2c_adapter *i2c_adap);
#else
static inline
struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config,
struct i2c_adapter *i2c_adap)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif /* CONFIG_DVB_LGDT3306A */
#endif /* _LGDT3306A_H_ */