media: replace strncpy() by strscpy()
[linux-block.git] / drivers / media / dvb-frontends / ts2020.h
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1/*
2 Montage Technology TS2020 - Silicon Tuner driver
3 Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
4
5 Copyright (C) 2009-2012 TurboSight.com
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#ifndef TS2020_H
23#define TS2020_H
24
25#include <linux/dvb/frontend.h>
26
27struct ts2020_config {
28 u8 tuner_address;
03a67279 29 u32 frequency_div;
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30
31 /*
32 * RF loop-through
33 */
0f20baad 34 bool loop_through:1;
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35
36 /*
37 * clock output
38 */
39#define TS2020_CLK_OUT_DISABLED 0
40#define TS2020_CLK_OUT_ENABLED 1
41#define TS2020_CLK_OUT_ENABLED_XTALOUT 2
42 u8 clk_out:2;
43
44 /*
45 * clock output divider
46 * 1 - 31
47 */
48 u8 clk_out_div:5;
49
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50 /* Set to true to suppress stat polling */
51 bool dont_poll:1;
52
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53 /*
54 * pointer to DVB frontend
55 */
56 struct dvb_frontend *fe;
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57
58 /*
59 * driver private, do not set value
60 */
61 u8 attach_in_use:1;
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62
63 /* Operation to be called by the ts2020 driver to get the value of the
64 * AGC PWM tuner input as theoretically output by the demodulator.
65 */
66 int (*get_agc_pwm)(struct dvb_frontend *fe, u8 *_agc_pwm);
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67};
68
e6ad9ce3 69/* Do not add new ts2020_attach() users! Use I2C bindings instead. */
9b174527 70#if IS_REACHABLE(CONFIG_DVB_TS2020)
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71extern struct dvb_frontend *ts2020_attach(
72 struct dvb_frontend *fe,
73 const struct ts2020_config *config,
74 struct i2c_adapter *i2c);
75#else
76static inline struct dvb_frontend *ts2020_attach(
77 struct dvb_frontend *fe,
78 const struct ts2020_config *config,
79 struct i2c_adapter *i2c)
80{
81 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
82 return NULL;
83}
84#endif
85
86#endif /* TS2020_H */