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
15struct 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)
59extern struct dvb_frontend *ts2020_attach(
60	struct dvb_frontend *fe,
61	const struct ts2020_config *config,
62	struct i2c_adapter *i2c);
63#else
64static 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 */