nxt200x.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 *    Support for NXT2002 and NXT2004 - VSB/QAM
 4 *
 5 *    Copyright (C) 2005 Kirk Lapray (kirk.lapray@gmail.com)
 6 *    based on nxt2002 by Taylor Jacob <rtjacob@earthlink.net>
 7 *    and nxt2004 by Jean-Francois Thibert (jeanfrancois@sagetv.com)
 8*/
 9
10#ifndef NXT200X_H
11#define NXT200X_H
12
13#include <linux/dvb/frontend.h>
14#include <linux/firmware.h>
15
16typedef enum nxt_chip_t {
17		NXTUNDEFINED,
18		NXT2002,
19		NXT2004
20}nxt_chip_type;
21
22struct nxt200x_config
23{
24	/* the demodulator's i2c address */
25	u8 demod_address;
26
27	/* need to set device param for start_dma */
28	int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
29};
30
31#if IS_REACHABLE(CONFIG_DVB_NXT200X)
32extern struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
33					   struct i2c_adapter* i2c);
34#else
35static inline struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
36					   struct i2c_adapter* i2c)
37{
38	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
39	return NULL;
40}
41#endif // CONFIG_DVB_NXT200X
42
43#endif /* NXT200X_H */