1/*
2 *    Support for LG Electronics LGDT3304 and LGDT3305 - VSB/QAM
3 *
4 *    Copyright (C) 2008, 2009, 2010 Michael Krufky <mkrufky@linuxtv.org>
5 *
6 *    This program is free software; you can redistribute it and/or modify
7 *    it under the terms of the GNU General Public License as published by
8 *    the Free Software Foundation; either version 2 of the License, or
9 *    (at your option) any later version.
10 *
11 *    This program is distributed in the hope that it will be useful,
12 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *    GNU General Public License for more details.
15 *
16 *    You should have received a copy of the GNU General Public License
17 *    along with this program; if not, write to the Free Software
18 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 */
21
22#ifndef _LGDT3305_H_
23#define _LGDT3305_H_
24
25#include <linux/kconfig.h>
26#include <linux/i2c.h>
27#include "dvb_frontend.h"
28
29
30enum lgdt3305_mpeg_mode {
31	LGDT3305_MPEG_PARALLEL = 0,
32	LGDT3305_MPEG_SERIAL = 1,
33};
34
35enum lgdt3305_tp_clock_edge {
36	LGDT3305_TPCLK_RISING_EDGE = 0,
37	LGDT3305_TPCLK_FALLING_EDGE = 1,
38};
39
40enum lgdt3305_tp_valid_polarity {
41	LGDT3305_TP_VALID_LOW = 0,
42	LGDT3305_TP_VALID_HIGH = 1,
43};
44
45enum lgdt_demod_chip_type {
46	LGDT3305 = 0,
47	LGDT3304 = 1,
48};
49
50struct lgdt3305_config {
51	u8 i2c_addr;
52
53	/* user defined IF frequency in KHz */
54	u16 qam_if_khz;
55	u16 vsb_if_khz;
56
57	/* AGC Power reference - defaults are used if left unset */
58	u16 usref_8vsb;   /* default: 0x32c4 */
59	u16 usref_qam64;  /* default: 0x5400 */
60	u16 usref_qam256; /* default: 0x2a80 */
61
62	/* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
63	unsigned int deny_i2c_rptr:1;
64
65	/* spectral inversion - 0:disabled 1:enabled */
66	unsigned int spectral_inversion:1;
67
68	/* use RF AGC loop - 0:disabled 1:enabled */
69	unsigned int rf_agc_loop:1;
70
71	enum lgdt3305_mpeg_mode mpeg_mode;
72	enum lgdt3305_tp_clock_edge tpclk_edge;
73	enum lgdt3305_tp_valid_polarity tpvalid_polarity;
74	enum lgdt_demod_chip_type demod_chip;
75};
76
77#if IS_ENABLED(CONFIG_DVB_LGDT3305)
78extern
79struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
80				     struct i2c_adapter *i2c_adap);
81#else
82static inline
83struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
84				     struct i2c_adapter *i2c_adap)
85{
86	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
87	return NULL;
88}
89#endif /* CONFIG_DVB_LGDT3305 */
90
91#endif /* _LGDT3305_H_ */
92