/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Driver for Zarlink DVB-T MT352 demodulator * * Written by Holger Waechtler <holger@qanu.de> * and Daniel Mack <daniel@qanu.de> * * AVerMedia AVerTV DVB-T 771 support by * Wolfram Joost <dbox2@frokaschwei.de> * * Support for Samsung TDTC9251DH01C(M) tuner * Copyright (C) 2004 Antonio Mancuso <antonio.mancuso@digitaltelevision.it> * Amauri Celani <acelani@essegi.net> * * DVICO FusionHDTV DVB-T1 and DVICO FusionHDTV DVB-T Lite support by * Christopher Pascoe <c.pascoe@itee.uq.edu.au> */ #ifndef MT352_H #define MT352_H #include <linux/dvb/frontend.h> struct mt352_config { /* the demodulator's i2c address */ u8 demod_address; /* frequencies in kHz */ int adc_clock; // default: 20480 int if2; // default: 36166 /* set if no pll is connected to the secondary i2c bus */ int no_tuner; /* Initialise the demodulator and PLL. Cannot be NULL */ int (*demod_init)(struct dvb_frontend* fe); }; #if IS_REACHABLE([31mCONFIG_DVB_MT352[0m) extern struct dvb_frontend* mt352_attach(const struct mt352_config* config, struct i2c_adapter* i2c); #else static inline struct dvb_frontend* mt352_attach(const struct mt352_config* config, struct i2c_adapter* i2c) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif // CONFIG_DVB_MT352 static inline int mt352_write(struct dvb_frontend *fe, const u8 buf[], int len) { int r = 0; if (fe->ops.write) r = fe->ops.write(fe, buf, len); return r; } #endif // MT352_H |