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- /* 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
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