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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Elonics R820T silicon tuner driver4 *5 * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>6 */7 8#ifndef R820T_H9#define R820T_H10 11#include <media/dvb_frontend.h>12 13enum r820t_chip {14 CHIP_R820T,15 CHIP_R620D,16 CHIP_R828D,17 CHIP_R828,18 CHIP_R828S,19 CHIP_R820C,20};21 22struct r820t_config {23 u8 i2c_addr; /* 0x34 */24 u32 xtal;25 enum r820t_chip rafael_chip;26 unsigned max_i2c_msg_len;27 bool use_diplexer;28 bool use_predetect;29};30 31#if IS_REACHABLE(CONFIG_MEDIA_TUNER_R820T)32struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,33 struct i2c_adapter *i2c,34 const struct r820t_config *cfg);35#else36static inline struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,37 struct i2c_adapter *i2c,38 const struct r820t_config *cfg)39{40 pr_warn("%s: driver disabled by Kconfig\n", __func__);41 return NULL;42}43#endif44 45#endif46