1 /*
2     Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
3 
4     Copyright (C) 2005 Steven Toth <stoth@linuxtv.org>
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 CX24123_H
22 #define CX24123_H
23 
24 #include <linux/kconfig.h>
25 #include <linux/dvb/frontend.h>
26 
27 struct cx24123_config {
28 	/* the demodulator's i2c address */
29 	u8 demod_address;
30 
31 	/* Need to set device param for start_dma */
32 	int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
33 
34 	/* 0 = LNB voltage normal, 1 = LNB voltage inverted */
35 	int lnb_polarity;
36 
37 	/* this device has another tuner */
38 	u8 dont_use_pll;
39 	void (*agc_callback) (struct dvb_frontend *);
40 };
41 
42 #if IS_REACHABLE(CONFIG_DVB_CX24123)
43 extern struct dvb_frontend *cx24123_attach(const struct cx24123_config *config,
44 					   struct i2c_adapter *i2c);
45 extern struct i2c_adapter *cx24123_get_tuner_i2c_adapter(struct dvb_frontend *);
46 #else
47 static inline struct dvb_frontend *cx24123_attach(
48 	const struct cx24123_config *config, struct i2c_adapter *i2c)
49 {
50 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
51 	return NULL;
52 }
53 static struct i2c_adapter *
54 	cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe)
55 {
56 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
57 	return NULL;
58 }
59 #endif
60 
61 #endif /* CX24123_H */
62