1 /*
2 * helene.h
3 *
4 * Sony HELENE DVB-S/S2/T/T2/C/C2/ISDB-T/S tuner driver (CXD2858ER)
5 *
6 * Copyright 2012 Sony Corporation
7 * Copyright (C) 2014 NetUP Inc.
8 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 */
20
21 #ifndef __DVB_HELENE_H__
22 #define __DVB_HELENE_H__
23
24 #include <linux/dvb/frontend.h>
25 #include <linux/i2c.h>
26
27 enum helene_xtal {
28 SONY_HELENE_XTAL_16000, /* 16 MHz */
29 SONY_HELENE_XTAL_20500, /* 20.5 MHz */
30 SONY_HELENE_XTAL_24000, /* 24 MHz */
31 SONY_HELENE_XTAL_41000 /* 41 MHz */
32 };
33
34 /**
35 * struct helene_config - the configuration of 'Helene' tuner driver
36 * @i2c_address: I2C address of the tuner
37 * @xtal_freq_mhz: Oscillator frequency, MHz
38 * @set_tuner_priv: Callback function private context
39 * @set_tuner_callback: Callback function that notifies the parent driver
40 * which tuner is active now
41 */
42 struct helene_config {
43 u8 i2c_address;
44 u8 xtal_freq_mhz;
45 void *set_tuner_priv;
46 int (*set_tuner_callback)(void *, int);
47 enum helene_xtal xtal;
48 };
49
50 #if IS_REACHABLE(CONFIG_DVB_HELENE)
51 extern struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
52 const struct helene_config *config,
53 struct i2c_adapter *i2c);
54 #else
helene_attach(struct dvb_frontend * fe,const struct helene_config * config,struct i2c_adapter * i2c)55 static inline struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
56 const struct helene_config *config,
57 struct i2c_adapter *i2c)
58 {
59 pr_warn("%s: driver disabled by Kconfig\n", __func__);
60 return NULL;
61 }
62 #endif
63
64 #if IS_REACHABLE(CONFIG_DVB_HELENE)
65 extern struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
66 const struct helene_config *config,
67 struct i2c_adapter *i2c);
68 #else
helene_attach_s(struct dvb_frontend * fe,const struct helene_config * config,struct i2c_adapter * i2c)69 static inline struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
70 const struct helene_config *config,
71 struct i2c_adapter *i2c)
72 {
73 pr_warn("%s: driver disabled by Kconfig\n", __func__);
74 return NULL;
75 }
76 #endif
77
78 #endif
79