1/*
2    VES1820  - Single Chip Cable Channel Receiver driver module
3
4    Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
5
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 2 of the License, or
9    (at your option) any later version.
10
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15
16    You should have received a copy of the GNU General Public License
17    along with this program; if not, write to the Free Software
18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19*/
20
21#ifndef VES1820_H
22#define VES1820_H
23
24#include <linux/dvb/frontend.h>
25
26#define VES1820_SELAGC_PWM 0
27#define VES1820_SELAGC_SIGNAMPERR 1
28
29struct ves1820_config
30{
31	/* the demodulator's i2c address */
32	u8 demod_address;
33
34	/* value of XIN to use */
35	u32 xin;
36
37	/* does inversion need inverted? */
38	u8 invert:1;
39
40	/* SELAGC control */
41	u8 selagc:1;
42};
43
44#if IS_ENABLED(CONFIG_DVB_VES1820)
45extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
46					   struct i2c_adapter* i2c, u8 pwm);
47#else
48static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
49					   struct i2c_adapter* i2c, u8 pwm)
50{
51	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
52	return NULL;
53}
54#endif // CONFIG_DVB_VES1820
55
56#endif // VES1820_H
57