zd1301_demod.h
2.05 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
/*
* ZyDAS ZD1301 driver (demodulator)
*
* Copyright (C) 2015 Antti Palosaari <crope@iki.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef ZD1301_DEMOD_H
#define ZD1301_DEMOD_H
#include <linux/platform_device.h>
#include <linux/dvb/frontend.h>
#include "dvb_frontend.h"
/**
* struct zd1301_demod_platform_data - Platform data for the zd1301_demod driver
* @reg_priv: First argument of reg_read and reg_write callbacks.
* @reg_read: Register read callback.
* @reg_write: Register write callback.
*/
struct zd1301_demod_platform_data {
void *reg_priv;
int (*reg_read)(void *, u16, u8 *);
int (*reg_write)(void *, u16, u8);
};
#if IS_REACHABLE(CONFIG_DVB_ZD1301_DEMOD)
/**
* zd1301_demod_get_dvb_frontend() - Get pointer to DVB frontend
* @pdev: Pointer to platform device
*
* Return: Pointer to DVB frontend which given platform device owns.
*/
struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *);
/**
* zd1301_demod_get_i2c_adapter() - Get pointer to I2C adapter
* @pdev: Pointer to platform device
*
* Return: Pointer to I2C adapter which given platform device owns.
*/
struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *);
#else
static inline struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *dev)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
static inline struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *dev)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif /* ZD1301_DEMOD_H */