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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Support for LG Electronics LGDT3304 and LGDT3305 - VSB/QAM4 *5 * Copyright (C) 2008, 2009, 2010 Michael Krufky <mkrufky@linuxtv.org>6 */7 8#ifndef _LGDT3305_H_9#define _LGDT3305_H_10 11#include <linux/i2c.h>12#include <media/dvb_frontend.h>13 14 15enum lgdt3305_mpeg_mode {16 LGDT3305_MPEG_PARALLEL = 0,17 LGDT3305_MPEG_SERIAL = 1,18};19 20enum lgdt3305_tp_clock_edge {21 LGDT3305_TPCLK_RISING_EDGE = 0,22 LGDT3305_TPCLK_FALLING_EDGE = 1,23};24 25enum lgdt3305_tp_clock_mode {26 LGDT3305_TPCLK_GATED = 0,27 LGDT3305_TPCLK_FIXED = 1,28};29 30enum lgdt3305_tp_valid_polarity {31 LGDT3305_TP_VALID_LOW = 0,32 LGDT3305_TP_VALID_HIGH = 1,33};34 35enum lgdt_demod_chip_type {36 LGDT3305 = 0,37 LGDT3304 = 1,38};39 40struct lgdt3305_config {41 u8 i2c_addr;42 43 /* user defined IF frequency in KHz */44 u16 qam_if_khz;45 u16 vsb_if_khz;46 47 /* AGC Power reference - defaults are used if left unset */48 u16 usref_8vsb; /* default: 0x32c4 */49 u16 usref_qam64; /* default: 0x5400 */50 u16 usref_qam256; /* default: 0x2a80 */51 52 /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */53 unsigned int deny_i2c_rptr:1;54 55 /* spectral inversion - 0:disabled 1:enabled */56 unsigned int spectral_inversion:1;57 58 /* use RF AGC loop - 0:disabled 1:enabled */59 unsigned int rf_agc_loop:1;60 61 enum lgdt3305_mpeg_mode mpeg_mode;62 enum lgdt3305_tp_clock_edge tpclk_edge;63 enum lgdt3305_tp_clock_mode tpclk_mode;64 enum lgdt3305_tp_valid_polarity tpvalid_polarity;65 enum lgdt_demod_chip_type demod_chip;66};67 68#if IS_REACHABLE(CONFIG_DVB_LGDT3305)69extern70struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,71 struct i2c_adapter *i2c_adap);72#else73static inline74struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,75 struct i2c_adapter *i2c_adap)76{77 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);78 return NULL;79}80#endif /* CONFIG_DVB_LGDT3305 */81 82#endif /* _LGDT3305_H_ */83