xref: /openbmc/linux/drivers/media/tuners/r820t.h (revision 16216333235adf51093d0330a934a7e4a03134fe)

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Elonics R820T silicon tuner driver
 *
 * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
 */

#ifndef R820T_H
#define R820T_H

#include <media/dvb_frontend.h>

enum r820t_chip {
	CHIP_R820T,
	CHIP_R620D,
	CHIP_R828D,
	CHIP_R828,
	CHIP_R828S,
	CHIP_R820C,
};

struct r820t_config {
	u8 i2c_addr;		/* 0x34 */
	u32 xtal;
	enum r820t_chip rafael_chip;
	unsigned max_i2c_msg_len;
	bool use_diplexer;
	bool use_predetect;
};

#if IS_REACHABLE(CONFIG_MEDIA_TUNER_R820T)
struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
				  struct i2c_adapter *i2c,
				  const struct r820t_config *cfg);
#else
static inline struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
						struct i2c_adapter *i2c,
						const struct r820t_config *cfg)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif

#endif