1 /*
2     cx24110 - Single Chip Satellite Channel Receiver driver module
3 
4     Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de> based on
5     work
6     Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
7 
8     This program is free software; you can redistribute it and/or modify
9     it under the terms of the GNU General Public License as published by
10     the Free Software Foundation; either version 2 of the License, or
11     (at your option) any later version.
12 
13     This program is distributed in the hope that it will be useful,
14     but WITHOUT ANY WARRANTY; without even the implied warranty of
15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 
17     GNU General Public License for more details.
18 
19     You should have received a copy of the GNU General Public License
20     along with this program; if not, write to the Free Software
21     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 
23 */
24 
25 #ifndef CX24110_H
26 #define CX24110_H
27 
28 #include <linux/dvb/frontend.h>
29 
30 struct cx24110_config
31 {
32 	/* the demodulator's i2c address */
33 	u8 demod_address;
34 };
35 
36 static inline int cx24110_pll_write(struct dvb_frontend *fe, u32 val)
37 {
38 	u8 buf[] = {
39 		(u8)((val >> 24) & 0xff),
40 		(u8)((val >> 16) & 0xff),
41 		(u8)((val >> 8) & 0xff)
42 	};
43 
44 	if (fe->ops.write)
45 		return fe->ops.write(fe, buf, 3);
46 	return 0;
47 }
48 
49 #if IS_REACHABLE(CONFIG_DVB_CX24110)
50 extern struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
51 					   struct i2c_adapter* i2c);
52 #else
53 static inline struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
54 						  struct i2c_adapter* i2c)
55 {
56 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
57 	return NULL;
58 }
59 #endif // CONFIG_DVB_CX24110
60 
61 #endif // CX24110_H
62