1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator
4*4882a593Smuzhiyun * LGS8913, LGS8GL5, LGS8G75
5*4882a593Smuzhiyun * experimental support LGS8G42, LGS8G52
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com>
8*4882a593Smuzhiyun * Copyright (C) 2008 Sirius International (Hong Kong) Limited
9*4882a593Smuzhiyun * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5)
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #ifndef __LGS8GXX_H__
13*4882a593Smuzhiyun #define __LGS8GXX_H__
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <linux/dvb/frontend.h>
16*4882a593Smuzhiyun #include <linux/i2c.h>
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #define LGS8GXX_PROD_LGS8913 0
19*4882a593Smuzhiyun #define LGS8GXX_PROD_LGS8GL5 1
20*4882a593Smuzhiyun #define LGS8GXX_PROD_LGS8G42 3
21*4882a593Smuzhiyun #define LGS8GXX_PROD_LGS8G52 4
22*4882a593Smuzhiyun #define LGS8GXX_PROD_LGS8G54 5
23*4882a593Smuzhiyun #define LGS8GXX_PROD_LGS8G75 6
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun struct lgs8gxx_config {
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun /* product type */
28*4882a593Smuzhiyun u8 prod;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun /* the demodulator's i2c address */
31*4882a593Smuzhiyun u8 demod_address;
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun /* parallel or serial transport stream */
34*4882a593Smuzhiyun u8 serial_ts;
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun /* transport stream polarity*/
37*4882a593Smuzhiyun u8 ts_clk_pol;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun /* transport stream clock gated by ts_valid */
40*4882a593Smuzhiyun u8 ts_clk_gated;
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun /* A/D Clock frequency */
43*4882a593Smuzhiyun u32 if_clk_freq; /* in kHz */
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun /* IF frequency */
46*4882a593Smuzhiyun u32 if_freq; /* in kHz */
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun /*Use External ADC*/
49*4882a593Smuzhiyun u8 ext_adc;
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun /*External ADC output two's complement*/
52*4882a593Smuzhiyun u8 adc_signed;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun /*Sample IF data at falling edge of IF_CLK*/
55*4882a593Smuzhiyun u8 if_neg_edge;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun /*IF use Negative center frequency*/
58*4882a593Smuzhiyun u8 if_neg_center;
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun /*8G75 internal ADC input range selection*/
61*4882a593Smuzhiyun /*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/
62*4882a593Smuzhiyun u8 adc_vpp;
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun /* slave address and configuration of the tuner */
65*4882a593Smuzhiyun u8 tuner_address;
66*4882a593Smuzhiyun };
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #if IS_REACHABLE(CONFIG_DVB_LGS8GXX)
69*4882a593Smuzhiyun extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
70*4882a593Smuzhiyun struct i2c_adapter *i2c);
71*4882a593Smuzhiyun #else
72*4882a593Smuzhiyun static inline
lgs8gxx_attach(const struct lgs8gxx_config * config,struct i2c_adapter * i2c)73*4882a593Smuzhiyun struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
74*4882a593Smuzhiyun struct i2c_adapter *i2c) {
75*4882a593Smuzhiyun printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
76*4882a593Smuzhiyun return NULL;
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun #endif /* CONFIG_DVB_LGS8GXX */
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun #endif /* __LGS8GXX_H__ */
81