1/*
2 * ascot2e.h
3 *
4 * Sony Ascot3E DVB-T/T2/C/C2 tuner driver
5 *
6 * Copyright 2012 Sony Corporation
7 * Copyright (C) 2014 NetUP Inc.
8 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
9 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU General Public License for more details.
20  */
21
22#ifndef __DVB_ASCOT2E_H__
23#define __DVB_ASCOT2E_H__
24
25#include <linux/kconfig.h>
26#include <linux/dvb/frontend.h>
27#include <linux/i2c.h>
28
29/**
30 * struct ascot2e_config - the configuration of Ascot2E tuner driver
31 * @i2c_address:	I2C address of the tuner
32 * @xtal_freq_mhz:	Oscillator frequency, MHz
33 * @set_tuner_priv:	Callback function private context
34 * @set_tuner_callback:	Callback function that notifies the parent driver
35 *			which tuner is active now
36 */
37struct ascot2e_config {
38	u8	i2c_address;
39	u8	xtal_freq_mhz;
40	void	*set_tuner_priv;
41	int	(*set_tuner_callback)(void *, int);
42};
43
44#if IS_REACHABLE(CONFIG_DVB_ASCOT2E)
45extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
46					const struct ascot2e_config *config,
47					struct i2c_adapter *i2c);
48#else
49static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
50					const struct ascot2e_config *config,
51					struct i2c_adapter *i2c)
52{
53	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
54	return NULL;
55}
56#endif
57
58#endif
59