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Kozlov Sergeydacf9ce2015-07-28 11:33:01 -03001/*
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
Kozlov Sergeydacf9ce2015-07-28 11:33:01 -030025#include <linux/dvb/frontend.h>
26#include <linux/i2c.h>
27
28/**
29 * struct ascot2e_config - the configuration of Ascot2E tuner driver
30 * @i2c_address: I2C address of the tuner
31 * @xtal_freq_mhz: Oscillator frequency, MHz
32 * @set_tuner_priv: Callback function private context
33 * @set_tuner_callback: Callback function that notifies the parent driver
34 * which tuner is active now
35 */
36struct ascot2e_config {
37 u8 i2c_address;
38 u8 xtal_freq_mhz;
39 void *set_tuner_priv;
40 int (*set_tuner_callback)(void *, int);
41};
42
43#if IS_REACHABLE(CONFIG_DVB_ASCOT2E)
Mauro Carvalho Chehabbe9b53c2017-11-29 14:02:22 -050044/**
45 * Attach an ascot2e tuner
46 *
47 * @fe: frontend to be attached
48 * @config: pointer to &struct ascot2e_config with tuner configuration.
49 * @i2c: i2c adapter to use.
50 *
51 * return: FE pointer on success, NULL on failure.
52 */
Kozlov Sergeydacf9ce2015-07-28 11:33:01 -030053extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
54 const struct ascot2e_config *config,
55 struct i2c_adapter *i2c);
56#else
57static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
58 const struct ascot2e_config *config,
59 struct i2c_adapter *i2c)
60{
61 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
62 return NULL;
63}
64#endif
65
66#endif