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/kconfig.h>
24 #include <linux/dvb/frontend.h>
25 #include <linux/firmware.h>
26 
27 struct cx24120_initial_mpeg_config {
28 	u8 x1;
29 	u8 x2;
30 	u8 x3;
31 };
32 
33 struct cx24120_config {
34 	u8 i2c_addr;
35 	u32 xtal_khz;
36 	struct cx24120_initial_mpeg_config initial_mpeg_config;
37 
38 	int (*request_firmware)(struct dvb_frontend *fe,
39 				const struct firmware **fw, char *name);
40 
41 	/* max bytes I2C provider can write at once */
42 	u16 i2c_wr_max;
43 };
44 
45 #if IS_REACHABLE(CONFIG_DVB_CX24120)
46 struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
47 				    struct i2c_adapter *i2c);
48 #else
49 static inline
50 struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
51 				    struct i2c_adapter *i2c)
52 {
53 	pr_warn("%s: driver disabled by Kconfig\n", __func__);
54 	return NULL;
55 }
56 #endif
57 
58 #endif /* CX24120_H */
59