xref: /OK3568_Linux_fs/kernel/drivers/media/dvb-frontends/cx22702.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun     Conexant 22702 DVB OFDM demodulator driver
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun     based on:
6*4882a593Smuzhiyun 	Alps TDMB7 DVB OFDM demodulator driver
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun     Copyright (C) 2001-2002 Convergence Integrated Media GmbH
9*4882a593Smuzhiyun 	  Holger Waechtler <holger@convergence.de>
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun     Copyright (C) 2004 Steven Toth <stoth@linuxtv.org>
12*4882a593Smuzhiyun 
13*4882a593Smuzhiyun 
14*4882a593Smuzhiyun */
15*4882a593Smuzhiyun 
16*4882a593Smuzhiyun #ifndef CX22702_H
17*4882a593Smuzhiyun #define CX22702_H
18*4882a593Smuzhiyun 
19*4882a593Smuzhiyun #include <linux/dvb/frontend.h>
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun struct cx22702_config {
22*4882a593Smuzhiyun 	/* the demodulator's i2c address */
23*4882a593Smuzhiyun 	u8 demod_address;
24*4882a593Smuzhiyun 
25*4882a593Smuzhiyun 	/* serial/parallel output */
26*4882a593Smuzhiyun #define CX22702_PARALLEL_OUTPUT 0
27*4882a593Smuzhiyun #define CX22702_SERIAL_OUTPUT   1
28*4882a593Smuzhiyun 	u8 output_mode;
29*4882a593Smuzhiyun };
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun #if IS_REACHABLE(CONFIG_DVB_CX22702)
32*4882a593Smuzhiyun extern struct dvb_frontend *cx22702_attach(
33*4882a593Smuzhiyun 	const struct cx22702_config *config,
34*4882a593Smuzhiyun 	struct i2c_adapter *i2c);
35*4882a593Smuzhiyun #else
cx22702_attach(const struct cx22702_config * config,struct i2c_adapter * i2c)36*4882a593Smuzhiyun static inline struct dvb_frontend *cx22702_attach(
37*4882a593Smuzhiyun 	const struct cx22702_config *config,
38*4882a593Smuzhiyun 	struct i2c_adapter *i2c)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
41*4882a593Smuzhiyun 	return NULL;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun #endif
44*4882a593Smuzhiyun 
45*4882a593Smuzhiyun #endif
46