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/drivers/media/dvb/frontends/lgdt3305.h

https://bitbucket.org/ndreys/linux-sunxi
C++ Header | 91 lines | 50 code | 16 blank | 25 comment | 2 complexity | 00da87e99e155a0a33d4c0f4a519391e MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
 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/i2c.h>
26#include "dvb_frontend.h"
27
28
29enum lgdt3305_mpeg_mode {
30	LGDT3305_MPEG_PARALLEL = 0,
31	LGDT3305_MPEG_SERIAL = 1,
32};
33
34enum lgdt3305_tp_clock_edge {
35	LGDT3305_TPCLK_RISING_EDGE = 0,
36	LGDT3305_TPCLK_FALLING_EDGE = 1,
37};
38
39enum lgdt3305_tp_valid_polarity {
40	LGDT3305_TP_VALID_LOW = 0,
41	LGDT3305_TP_VALID_HIGH = 1,
42};
43
44enum lgdt_demod_chip_type {
45	LGDT3305 = 0,
46	LGDT3304 = 1,
47};
48
49struct lgdt3305_config {
50	u8 i2c_addr;
51
52	/* user defined IF frequency in KHz */
53	u16 qam_if_khz;
54	u16 vsb_if_khz;
55
56	/* AGC Power reference - defaults are used if left unset */
57	u16 usref_8vsb;   /* default: 0x32c4 */
58	u16 usref_qam64;  /* default: 0x5400 */
59	u16 usref_qam256; /* default: 0x2a80 */
60
61	/* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
62	unsigned int deny_i2c_rptr:1;
63
64	/* spectral inversion - 0:disabled 1:enabled */
65	unsigned int spectral_inversion:1;
66
67	/* use RF AGC loop - 0:disabled 1:enabled */
68	unsigned int rf_agc_loop:1;
69
70	enum lgdt3305_mpeg_mode mpeg_mode;
71	enum lgdt3305_tp_clock_edge tpclk_edge;
72	enum lgdt3305_tp_valid_polarity tpvalid_polarity;
73	enum lgdt_demod_chip_type demod_chip;
74};
75
76#if defined(CONFIG_DVB_LGDT3305) || (defined(CONFIG_DVB_LGDT3305_MODULE) && \
77				     defined(MODULE))
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_ */