/* * Support for LGDT3306A - 8VSB/QAM-B * * Copyright (C) 2013,2014 Fred Richter <frichter@hauppauge.com> * based on lgdt3305.[ch] by Michael Krufky * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _LGDT3306A_H_ #define _LGDT3306A_H_ #include <linux/i2c.h> #include <media/dvb_frontend.h> enum lgdt3306a_mpeg_mode { LGDT3306A_MPEG_PARALLEL = 0, LGDT3306A_MPEG_SERIAL = 1, }; enum lgdt3306a_tp_clock_edge { LGDT3306A_TPCLK_RISING_EDGE = 0, LGDT3306A_TPCLK_FALLING_EDGE = 1, }; enum lgdt3306a_tp_valid_polarity { LGDT3306A_TP_VALID_LOW = 0, LGDT3306A_TP_VALID_HIGH = 1, }; struct lgdt3306a_config { u8 i2c_addr; /* user defined IF frequency in KHz */ u16 qam_if_khz; u16 vsb_if_khz; /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */ unsigned int deny_i2c_rptr:1; /* spectral inversion - 0:disabled 1:enabled */ unsigned int spectral_inversion:1; enum lgdt3306a_mpeg_mode mpeg_mode; enum lgdt3306a_tp_clock_edge tpclk_edge; enum lgdt3306a_tp_valid_polarity tpvalid_polarity; /* demod clock freq in MHz; 24 or 25 supported */ int xtalMHz; /* returned by driver if using i2c bus multiplexing */ struct dvb_frontend **fe; struct i2c_adapter **i2c_adapter; }; #if IS_REACHABLE(CONFIG_DVB_LGDT3306A) struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config, struct i2c_adapter *i2c_adap); #else static inline struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config, struct i2c_adapter *i2c_adap) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif /* CONFIG_DVB_LGDT3306A */ #endif /* _LGDT3306A_H_ */