linux/drivers/media/tuners/mt2131.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  Driver for Microtune MT2131 "QAM/8VSB single chip tuner"
 *
 *  Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
 */

#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__ */