1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3     Montage Technology TS2020 - Silicon Tuner driver
4     Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
5 
6     Copyright (C) 2009-2012 TurboSight.com
7 
8  */
9 
10 #ifndef TS2020_H
11 #define TS2020_H
12 
13 #include <linux/dvb/frontend.h>
14 
15 struct ts2020_config {
16 	u8 tuner_address;
17 	u32 frequency_div;
18 
19 	/*
20 	 * RF loop-through
21 	 */
22 	bool loop_through:1;
23 
24 	/*
25 	 * clock output
26 	 */
27 #define TS2020_CLK_OUT_DISABLED        0
28 #define TS2020_CLK_OUT_ENABLED         1
29 #define TS2020_CLK_OUT_ENABLED_XTALOUT 2
30 	u8 clk_out:2;
31 
32 	/*
33 	 * clock output divider
34 	 * 1 - 31
35 	 */
36 	u8 clk_out_div:5;
37 
38 	/* Set to true to suppress stat polling */
39 	bool dont_poll:1;
40 
41 	/*
42 	 * pointer to DVB frontend
43 	 */
44 	struct dvb_frontend *fe;
45 
46 	/*
47 	 * driver private, do not set value
48 	 */
49 	u8 attach_in_use:1;
50 
51 	/* Operation to be called by the ts2020 driver to get the value of the
52 	 * AGC PWM tuner input as theoretically output by the demodulator.
53 	 */
54 	int (*get_agc_pwm)(struct dvb_frontend *fe, u8 *_agc_pwm);
55 };
56 
57 /* Do not add new ts2020_attach() users! Use I2C bindings instead. */
58 #if IS_REACHABLE(CONFIG_DVB_TS2020)
59 extern struct dvb_frontend *ts2020_attach(
60 	struct dvb_frontend *fe,
61 	const struct ts2020_config *config,
62 	struct i2c_adapter *i2c);
63 #else
64 static inline struct dvb_frontend *ts2020_attach(
65 	struct dvb_frontend *fe,
66 	const struct ts2020_config *config,
67 	struct i2c_adapter *i2c)
68 {
69 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
70 	return NULL;
71 }
72 #endif
73 
74 #endif /* TS2020_H */
75