1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3     cx24110 - Single Chip Satellite Channel Receiver driver module
4 
5     Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de> based on
6     work
7     Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
8 
9 
10 */
11 
12 #ifndef CX24110_H
13 #define CX24110_H
14 
15 #include <linux/dvb/frontend.h>
16 
17 struct cx24110_config
18 {
19 	/* the demodulator's i2c address */
20 	u8 demod_address;
21 };
22 
23 static inline int cx24110_pll_write(struct dvb_frontend *fe, u32 val)
24 {
25 	u8 buf[] = {
26 		(u8)((val >> 24) & 0xff),
27 		(u8)((val >> 16) & 0xff),
28 		(u8)((val >> 8) & 0xff)
29 	};
30 
31 	if (fe->ops.write)
32 		return fe->ops.write(fe, buf, 3);
33 	return 0;
34 }
35 
36 #if IS_REACHABLE(CONFIG_DVB_CX24110)
37 extern struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
38 					   struct i2c_adapter* i2c);
39 #else
40 static inline struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
41 						  struct i2c_adapter* i2c)
42 {
43 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
44 	return NULL;
45 }
46 #endif // CONFIG_DVB_CX24110
47 
48 #endif // CX24110_H
49