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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Support for LGDT3306A - 8VSB/QAM-B4 *5 * Copyright (C) 2013,2014 Fred Richter <frichter@hauppauge.com>6 * based on lgdt3305.[ch] by Michael Krufky7 */8 9#ifndef _LGDT3306A_H_10#define _LGDT3306A_H_11 12#include <linux/i2c.h>13#include <media/dvb_frontend.h>14 15 16enum lgdt3306a_mpeg_mode {17 LGDT3306A_MPEG_PARALLEL = 0,18 LGDT3306A_MPEG_SERIAL = 1,19};20 21enum lgdt3306a_tp_clock_edge {22 LGDT3306A_TPCLK_RISING_EDGE = 0,23 LGDT3306A_TPCLK_FALLING_EDGE = 1,24};25 26enum lgdt3306a_tp_valid_polarity {27 LGDT3306A_TP_VALID_LOW = 0,28 LGDT3306A_TP_VALID_HIGH = 1,29};30 31struct lgdt3306a_config {32 u8 i2c_addr;33 34 /* user defined IF frequency in KHz */35 u16 qam_if_khz;36 u16 vsb_if_khz;37 38 /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */39 unsigned int deny_i2c_rptr:1;40 41 /* spectral inversion - 0:disabled 1:enabled */42 unsigned int spectral_inversion:1;43 44 enum lgdt3306a_mpeg_mode mpeg_mode;45 enum lgdt3306a_tp_clock_edge tpclk_edge;46 enum lgdt3306a_tp_valid_polarity tpvalid_polarity;47 48 /* demod clock freq in MHz; 24 or 25 supported */49 int xtalMHz;50 51 /* returned by driver if using i2c bus multiplexing */52 struct dvb_frontend **fe;53 struct i2c_adapter **i2c_adapter;54};55 56#if IS_REACHABLE(CONFIG_DVB_LGDT3306A)57struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config,58 struct i2c_adapter *i2c_adap);59#else60static inline61struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config,62 struct i2c_adapter *i2c_adap)63{64 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);65 return NULL;66}67#endif /* CONFIG_DVB_LGDT3306A */68 69#endif /* _LGDT3306A_H_ */70