1 /*
2  * Conexant CX24120/CX24118 - DVB-S/S2 demod/tuner driver
3  *
4  * Copyright (C) 2008 Patrick Boettcher <pb@linuxtv.org>
5  * Copyright (C) 2009 Sergey Tyurin <forum.free-x.de>
6  * Updated 2012 by Jannis Achstetter <jannis_achstetter@web.de>
7  * Copyright (C) 2015 Jemma Denson <jdenson@gmail.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  */
19 
20 #ifndef CX24120_H
21 #define CX24120_H
22 
23 #include <linux/dvb/frontend.h>
24 #include <linux/firmware.h>
25 
26 struct cx24120_initial_mpeg_config {
27 	u8 x1;
28 	u8 x2;
29 	u8 x3;
30 };
31 
32 struct cx24120_config {
33 	u8 i2c_addr;
34 	u32 xtal_khz;
35 	struct cx24120_initial_mpeg_config initial_mpeg_config;
36 
37 	int (*request_firmware)(struct dvb_frontend *fe,
38 				const struct firmware **fw, char *name);
39 
40 	/* max bytes I2C provider can write at once */
41 	u16 i2c_wr_max;
42 };
43 
44 #if IS_REACHABLE(CONFIG_DVB_CX24120)
45 struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
46 				    struct i2c_adapter *i2c);
47 #else
48 static inline
49 struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
50 				    struct i2c_adapter *i2c)
51 {
52 	pr_warn("%s: driver disabled by Kconfig\n", __func__);
53 	return NULL;
54 }
55 #endif
56 
57 #endif /* CX24120_H */
58