mirror of https://gitee.com/openkylin/linux.git
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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DVB Driver for Philips tda827x / tda827xa Silicon tuners
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(c) 2005 Hartmut Hackmann
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(c) 2007 Michael Krufky
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*/
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#ifndef __DVB_TDA827X_H__
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#define __DVB_TDA827X_H__
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#include <linux/i2c.h>
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#include <media/dvb_frontend.h>
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#include "tda8290.h"
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struct tda827x_config
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{
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/* saa7134 - provided callbacks */
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int (*init) (struct dvb_frontend *fe);
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int (*sleep) (struct dvb_frontend *fe);
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/* interface to tda829x driver */
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enum tda8290_lna config;
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int switch_addr;
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void (*agcf)(struct dvb_frontend *fe);
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};
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/**
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* Attach a tda827x tuner to the supplied frontend structure.
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*
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* @param fe Frontend to attach to.
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* @param addr i2c address of the tuner.
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* @param i2c i2c adapter to use.
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* @param cfg optional callback function pointers.
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* @return FE pointer on success, NULL on failure.
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*/
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#if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA827X)
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extern struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, int addr,
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struct i2c_adapter *i2c,
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struct tda827x_config *cfg);
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#else
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static inline struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe,
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int addr,
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struct i2c_adapter *i2c,
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struct tda827x_config *cfg)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif // CONFIG_MEDIA_TUNER_TDA827X
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#endif // __DVB_TDA827X_H__
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