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
27struct cx24120_initial_mpeg_config {
28	u8 x1;
29	u8 x2;
30	u8 x3;
31};
32
33struct 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)
46struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
47				    struct i2c_adapter *i2c);
48#else
49static inline
50struct 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