mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-27 13:05:03 +08:00
782d8b743a
Instead of checking everywhere there for 3 symbols, use instead IS_ENABLED macro. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
|
|
* Support for LG Electronics LGDT3304 and LGDT3305 - VSB/QAM
|
|
*
|
|
* Copyright (C) 2008, 2009, 2010 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/kconfig.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,
|
|
};
|
|
|
|
enum lgdt_demod_chip_type {
|
|
LGDT3305 = 0,
|
|
LGDT3304 = 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 */
|
|
unsigned int deny_i2c_rptr:1;
|
|
|
|
/* spectral inversion - 0:disabled 1:enabled */
|
|
unsigned int spectral_inversion:1;
|
|
|
|
/* use RF AGC loop - 0:disabled 1:enabled */
|
|
unsigned 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;
|
|
enum lgdt_demod_chip_type demod_chip;
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_DVB_LGDT3305)
|
|
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_ */
|