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_ */
83