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ves1820.h
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1 /*
2  VES1820 - Single Chip Cable Channel Receiver driver module
3 
4  Copyright (C) 1999 Convergence Integrated Media GmbH <[email protected]>
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 
30 {
31  /* the demodulator's i2c address */
33 
34  /* value of XIN to use */
36 
37  /* does inversion need inverted? */
39 
40  /* SELAGC control */
42 };
43 
44 #if defined(CONFIG_DVB_VES1820) || (defined(CONFIG_DVB_VES1820_MODULE) && defined(MODULE))
45 extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
46  struct i2c_adapter* i2c, u8 pwm);
47 #else
48 static 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