1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 DVB Driver for Philips tda827x / tda827xa Silicon tuners 4 5 (c) 2005 Hartmut Hackmann 6 (c) 2007 Michael Krufky 7 8 9 */ 10 11 #ifndef __DVB_TDA827X_H__ 12 #define __DVB_TDA827X_H__ 13 14 #include <linux/i2c.h> 15 #include <media/dvb_frontend.h> 16 #include "tda8290.h" 17 18 struct tda827x_config 19 { 20 /* saa7134 - provided callbacks */ 21 int (*init) (struct dvb_frontend *fe); 22 int (*sleep) (struct dvb_frontend *fe); 23 24 /* interface to tda829x driver */ 25 enum tda8290_lna config; 26 int switch_addr; 27 28 void (*agcf)(struct dvb_frontend *fe); 29 }; 30 31 32 /** 33 * Attach a tda827x tuner to the supplied frontend structure. 34 * 35 * @param fe Frontend to attach to. 36 * @param addr i2c address of the tuner. 37 * @param i2c i2c adapter to use. 38 * @param cfg optional callback function pointers. 39 * @return FE pointer on success, NULL on failure. 40 */ 41 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA827X) 42 extern struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, int addr, 43 struct i2c_adapter *i2c, 44 struct tda827x_config *cfg); 45 #else 46 static inline struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, 47 int addr, 48 struct i2c_adapter *i2c, 49 struct tda827x_config *cfg) 50 { 51 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 52 return NULL; 53 } 54 #endif // CONFIG_MEDIA_TUNER_TDA827X 55 56 #endif // __DVB_TDA827X_H__ 57