linux-arkmicro/linux/drivers/media/tuners/mt2131.h

/*
 *  Driver for Microtune MT2131 "QAM/8VSB single chip tuner"
 *
 *  Copyright (c) 2006 Steven Toth <stoth@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.
 */

#ifndef __MT2131_H__
#define __MT2131_H__

struct dvb_frontend;
struct i2c_adapter;

struct mt2131_config {
	u8 i2c_address;
	u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */
};

#if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT2131)
extern struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe,
					  struct i2c_adapter *i2c,
					  struct mt2131_config *cfg,
					  u16 if1);
#else
static inline struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe,
						 struct i2c_adapter *i2c,
						 struct mt2131_config *cfg,
						 u16 if1)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif /* CONFIG_MEDIA_TUNER_MT2131 */

#endif /* __MT2131_H__ */