1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Support for LG Electronics LGDT3304 and LGDT3305 - VSB/QAM
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2008, 2009, 2010 Michael Krufky <mkrufky@linuxtv.org>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #ifndef _LGDT3305_H_
9*4882a593Smuzhiyun #define _LGDT3305_H_
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/i2c.h>
12*4882a593Smuzhiyun #include <media/dvb_frontend.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun enum lgdt3305_mpeg_mode {
16*4882a593Smuzhiyun LGDT3305_MPEG_PARALLEL = 0,
17*4882a593Smuzhiyun LGDT3305_MPEG_SERIAL = 1,
18*4882a593Smuzhiyun };
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun enum lgdt3305_tp_clock_edge {
21*4882a593Smuzhiyun LGDT3305_TPCLK_RISING_EDGE = 0,
22*4882a593Smuzhiyun LGDT3305_TPCLK_FALLING_EDGE = 1,
23*4882a593Smuzhiyun };
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun enum lgdt3305_tp_clock_mode {
26*4882a593Smuzhiyun LGDT3305_TPCLK_GATED = 0,
27*4882a593Smuzhiyun LGDT3305_TPCLK_FIXED = 1,
28*4882a593Smuzhiyun };
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun enum lgdt3305_tp_valid_polarity {
31*4882a593Smuzhiyun LGDT3305_TP_VALID_LOW = 0,
32*4882a593Smuzhiyun LGDT3305_TP_VALID_HIGH = 1,
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun enum lgdt_demod_chip_type {
36*4882a593Smuzhiyun LGDT3305 = 0,
37*4882a593Smuzhiyun LGDT3304 = 1,
38*4882a593Smuzhiyun };
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun struct lgdt3305_config {
41*4882a593Smuzhiyun u8 i2c_addr;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun /* user defined IF frequency in KHz */
44*4882a593Smuzhiyun u16 qam_if_khz;
45*4882a593Smuzhiyun u16 vsb_if_khz;
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun /* AGC Power reference - defaults are used if left unset */
48*4882a593Smuzhiyun u16 usref_8vsb; /* default: 0x32c4 */
49*4882a593Smuzhiyun u16 usref_qam64; /* default: 0x5400 */
50*4882a593Smuzhiyun u16 usref_qam256; /* default: 0x2a80 */
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
53*4882a593Smuzhiyun unsigned int deny_i2c_rptr:1;
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun /* spectral inversion - 0:disabled 1:enabled */
56*4882a593Smuzhiyun unsigned int spectral_inversion:1;
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun /* use RF AGC loop - 0:disabled 1:enabled */
59*4882a593Smuzhiyun unsigned int rf_agc_loop:1;
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun enum lgdt3305_mpeg_mode mpeg_mode;
62*4882a593Smuzhiyun enum lgdt3305_tp_clock_edge tpclk_edge;
63*4882a593Smuzhiyun enum lgdt3305_tp_clock_mode tpclk_mode;
64*4882a593Smuzhiyun enum lgdt3305_tp_valid_polarity tpvalid_polarity;
65*4882a593Smuzhiyun enum lgdt_demod_chip_type demod_chip;
66*4882a593Smuzhiyun };
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #if IS_REACHABLE(CONFIG_DVB_LGDT3305)
69*4882a593Smuzhiyun extern
70*4882a593Smuzhiyun struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
71*4882a593Smuzhiyun struct i2c_adapter *i2c_adap);
72*4882a593Smuzhiyun #else
73*4882a593Smuzhiyun static inline
lgdt3305_attach(const struct lgdt3305_config * config,struct i2c_adapter * i2c_adap)74*4882a593Smuzhiyun struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
75*4882a593Smuzhiyun struct i2c_adapter *i2c_adap)
76*4882a593Smuzhiyun {
77*4882a593Smuzhiyun printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
78*4882a593Smuzhiyun return NULL;
79*4882a593Smuzhiyun }
80*4882a593Smuzhiyun #endif /* CONFIG_DVB_LGDT3305 */
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun #endif /* _LGDT3305_H_ */
83