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56 lines
1.4 KiB
56 lines
1.4 KiB
/* 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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