1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 Samsung S5H1409 VSB/QAM demodulator driver
4
5 Copyright (C) 2006 Steven Toth <stoth@linuxtv.org>
6
7
8*/
9
10#ifndef __S5H1409_H__
11#define __S5H1409_H__
12
13#include <linux/dvb/frontend.h>
14
15struct s5h1409_config {
16 /* the demodulator's i2c address */
17 u8 demod_address;
18
19 /* serial/parallel output */
20#define S5H1409_PARALLEL_OUTPUT 0
21#define S5H1409_SERIAL_OUTPUT 1
22 u8 output_mode;
23
24 /* GPIO Setting */
25#define S5H1409_GPIO_OFF 0
26#define S5H1409_GPIO_ON 1
27 u8 gpio;
28
29 /* IF Freq for QAM in KHz, VSB is hardcoded to 5380 */
30 u16 qam_if;
31
32 /* Spectral Inversion */
33#define S5H1409_INVERSION_OFF 0
34#define S5H1409_INVERSION_ON 1
35 u8 inversion;
36
37 /* Return lock status based on tuner lock, or demod lock */
38#define S5H1409_TUNERLOCKING 0
39#define S5H1409_DEMODLOCKING 1
40 u8 status_mode;
41
42 /* MPEG signal timing */
43#define S5H1409_MPEGTIMING_CONTINUOUS_INVERTING_CLOCK 0
44#define S5H1409_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK 1
45#define S5H1409_MPEGTIMING_NONCONTINUOUS_INVERTING_CLOCK 2
46#define S5H1409_MPEGTIMING_NONCONTINUOUS_NONINVERTING_CLOCK 3
47 u16 mpeg_timing;
48
49 /* HVR-1600 optimizations (to better work with MXL5005s)
50 Note: some of these are likely to be folded into the generic driver
51 after being regression tested with other boards */
52#define S5H1409_HVR1600_NOOPTIMIZE 0
53#define S5H1409_HVR1600_OPTIMIZE 1
54 u8 hvr1600_opt;
55};
56
57#if IS_REACHABLE(CONFIG_DVB_S5H1409)
58extern struct dvb_frontend *s5h1409_attach(const struct s5h1409_config *config,
59 struct i2c_adapter *i2c);
60#else
61static inline struct dvb_frontend *s5h1409_attach(
62 const struct s5h1409_config *config,
63 struct i2c_adapter *i2c)
64{
65 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
66 return NULL;
67}
68#endif /* CONFIG_DVB_S5H1409 */
69
70#endif /* __S5H1409_H__ */
71

source code of linux/drivers/media/dvb-frontends/s5h1409.h