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review.shift-gmbh.com / SHIFTPHONES / kernel / shift / mainline / 0f29c20bf4342c7757d9f4bf81159b02498b1b0d / . / drivers / media / dvb-frontends / lgs8gxx.h
blob: 5b2f13a8be216a7f6584dc9b8f178309c93aff0c [file] [log] [blame]
Thomas Gleixnerc942fdd2019-05-27 08:55:06 +0200[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-or-later */
David Wongf15da162009-04-01 04:35:10 -0300[diff] [blame]2/*
David Wongb80dc1c2009-06-17 01:38:10 -0300[diff] [blame]3 * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator
4 * LGS8913, LGS8GL5, LGS8G75
David Wongf15da162009-04-01 04:35:10 -0300[diff] [blame]5 * experimental support LGS8G42, LGS8G52
6 *
David Wongb80dc1c2009-06-17 01:38:10 -0300[diff] [blame]7 * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com>
David Wongf15da162009-04-01 04:35:10 -0300[diff] [blame]8 * Copyright (C) 2008 Sirius International (Hong Kong) Limited
9 * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5)
David Wongf15da162009-04-01 04:35:10 -0300[diff] [blame]10 */
11
12#ifndef __LGS8GXX_H__
13#define __LGS8GXX_H__
14
15#include <linux/dvb/frontend.h>
16#include <linux/i2c.h>
17
18#define LGS8GXX_PROD_LGS8913 0
19#define LGS8GXX_PROD_LGS8GL5 1
20#define LGS8GXX_PROD_LGS8G42 3
21#define LGS8GXX_PROD_LGS8G52 4
22#define LGS8GXX_PROD_LGS8G54 5
David Wongb80dc1c2009-06-17 01:38:10 -0300[diff] [blame]23#define LGS8GXX_PROD_LGS8G75 6
David Wongf15da162009-04-01 04:35:10 -0300[diff] [blame]24
25struct lgs8gxx_config {
26
27 /* product type */
28 u8 prod;
29
30 /* the demodulator's i2c address */
31 u8 demod_address;
32
33 /* parallel or serial transport stream */
34 u8 serial_ts;
35
36 /* transport stream polarity*/
37 u8 ts_clk_pol;
38
39 /* transport stream clock gated by ts_valid */
40 u8 ts_clk_gated;
41
42 /* A/D Clock frequency */
43 u32 if_clk_freq; /* in kHz */
44
45 /* IF frequency */
46 u32 if_freq; /* in kHz */
47
48 /*Use External ADC*/
49 u8 ext_adc;
50
51 /*External ADC output two's complement*/
52 u8 adc_signed;
53
54 /*Sample IF data at falling edge of IF_CLK*/
55 u8 if_neg_edge;
56
57 /*IF use Negative center frequency*/
58 u8 if_neg_center;
59
David Wongb80dc1c2009-06-17 01:38:10 -0300[diff] [blame]60 /*8G75 internal ADC input range selection*/
61 /*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/
62 u8 adc_vpp;
63
David Wongf15da162009-04-01 04:35:10 -0300[diff] [blame]64 /* slave address and configuration of the tuner */
65 u8 tuner_address;
66};
67
Arnd Bergmann9b174522015-02-18 14:12:42 -0300[diff] [blame]68#if IS_REACHABLE(CONFIG_DVB_LGS8GXX)
David Wongf15da162009-04-01 04:35:10 -0300[diff] [blame]69extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
70 struct i2c_adapter *i2c);
71#else
72static inline
73struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
74 struct i2c_adapter *i2c) {
75 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
76 return NULL;
77}
78#endif /* CONFIG_DVB_LGS8GXX */
79
80#endif /* __LGS8GXX_H__ */