57 lines · c
1/* SPDX-License-Identifier: GPL-2.0-or-later */2 /*3 DVB Driver for Philips tda827x / tda827xa Silicon tuners4 5 (c) 2005 Hartmut Hackmann6 (c) 2007 Michael Krufky7 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 18struct tda827x_config19{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 * tda827x_attach() - Attach a tda827x tuner to the supplied frontend structure34 *35 * @fe: Frontend to attach to.36 * @addr: i2c address of the tuner.37 * @i2c: i2c adapter to use.38 * @cfg: optional callback function pointers.39 * @return FE pointer on success, NULL on failure.40 */41#if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA827X)42extern struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, int addr,43 struct i2c_adapter *i2c,44 struct tda827x_config *cfg);45#else46static 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_TDA827X55 56#endif // __DVB_TDA827X_H__57