summaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/frontends/ves1820.h
blob: f0c9dded39d77fea63914ebb82a329ee1d976e87 (plain)
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
/*
    VES1820  - Single Chip Cable Channel Receiver driver module

    Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>

    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.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef VES1820_H
#define VES1820_H

#include <linux/dvb/frontend.h>

#define VES1820_SELAGC_PWM 0
#define VES1820_SELAGC_SIGNAMPERR 1

struct ves1820_config
{
	/* the demodulator's i2c address */
	u8 demod_address;

	/* value of XIN to use */
	u32 xin;

	/* does inversion need inverted? */
	u8 invert:1;

	/* SELAGC control */
	u8 selagc:1;
};

#if defined(CONFIG_DVB_VES1820) || defined(CONFIG_DVB_VES1820_MODULE)
extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
					   struct i2c_adapter* i2c, u8 pwm);
#else
static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
					   struct i2c_adapter* i2c, u8 pwm)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
	return NULL;
}
#endif // CONFIG_DVB_VES1820

#endif // VES1820_H