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/*
* Support for LGDT3305 - VSB/QAM
*
* Copyright (C) 2008, 2009 Michael Krufky <mkrufky@linuxtv.org>
*
* 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 _LGDT3305_H_
#define _LGDT3305_H_
#include <linux/i2c.h>
#include "dvb_frontend.h"
enum lgdt3305_mpeg_mode {
LGDT3305_MPEG_PARALLEL = 0,
LGDT3305_MPEG_SERIAL = 1,
};
enum lgdt3305_tp_clock_edge {
LGDT3305_TPCLK_RISING_EDGE = 0,
LGDT3305_TPCLK_FALLING_EDGE = 1,
};
enum lgdt3305_tp_valid_polarity {
LGDT3305_TP_VALID_LOW = 0,
LGDT3305_TP_VALID_HIGH = 1,
};
struct lgdt3305_config {
u8 i2c_addr;
/* user defined IF frequency in KHz */
u16 qam_if_khz;
u16 vsb_if_khz;
/* AGC Power reference - defaults are used if left unset */
u16 usref_8vsb; /* default: 0x32c4 */
u16 usref_qam64; /* default: 0x5400 */
u16 usref_qam256; /* default: 0x2a80 */
/* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
int deny_i2c_rptr:1;
/* spectral inversion - 0:disabled 1:enabled */
int spectral_inversion:1;
/* use RF AGC loop - 0:disabled 1:enabled */
int rf_agc_loop:1;
enum lgdt3305_mpeg_mode mpeg_mode;
enum lgdt3305_tp_clock_edge tpclk_edge;
enum lgdt3305_tp_valid_polarity tpvalid_polarity;
};
#if defined(CONFIG_DVB_LGDT3305) || (defined(CONFIG_DVB_LGDT3305_MODULE) && \
defined(MODULE))
extern
struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
struct i2c_adapter *i2c_adap);
#else
static inline
struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
struct i2c_adapter *i2c_adap)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif /* CONFIG_DVB_LGDT3305 */
#endif /* _LGDT3305_H_ */
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