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59 lines
1.5 KiB
59 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Driver for Zarlink DVB-T MT352 demodulator |
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* |
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* Written by Holger Waechtler <[email protected]> |
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* and Daniel Mack <[email protected]> |
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* |
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* AVerMedia AVerTV DVB-T 771 support by |
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* Wolfram Joost <[email protected]> |
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* |
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* Support for Samsung TDTC9251DH01C(M) tuner |
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* Copyright (C) 2004 Antonio Mancuso <[email protected]> |
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* Amauri Celani <[email protected]> |
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* |
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* DVICO FusionHDTV DVB-T1 and DVICO FusionHDTV DVB-T Lite support by |
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* Christopher Pascoe <[email protected]> |
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*/ |
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#ifndef MT352_H |
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#define MT352_H |
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#include <linux/dvb/frontend.h> |
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struct mt352_config |
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{ |
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/* the demodulator's i2c address */ |
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u8 demod_address; |
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/* frequencies in kHz */ |
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int adc_clock; // default: 20480 |
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int if2; // default: 36166 |
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/* set if no pll is connected to the secondary i2c bus */ |
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int no_tuner; |
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/* Initialise the demodulator and PLL. Cannot be NULL */ |
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int (*demod_init)(struct dvb_frontend* fe); |
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}; |
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#if IS_REACHABLE(CONFIG_DVB_MT352) |
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extern struct dvb_frontend* mt352_attach(const struct mt352_config* config, |
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struct i2c_adapter* i2c); |
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#else |
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static inline struct dvb_frontend* mt352_attach(const struct mt352_config* config, |
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struct i2c_adapter* i2c) |
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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_DVB_MT352 |
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static inline int mt352_write(struct dvb_frontend *fe, const u8 buf[], int len) { |
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int r = 0; |
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if (fe->ops.write) |
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r = fe->ops.write(fe, buf, len); |
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return r; |
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} |
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#endif // MT352_H
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