cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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lgdt3305.h (1945B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 *    Support for LG Electronics LGDT3304 and LGDT3305 - VSB/QAM
      4 *
      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)
     69extern
     70struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
     71				     struct i2c_adapter *i2c_adap);
     72#else
     73static inline
     74struct 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_ */