1 /*
2  *  mxl111sf-demod.h - driver for the MaxLinear MXL111SF DVB-T demodulator
3  *
4  *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@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 
17 #ifndef __MXL111SF_DEMOD_H__
18 #define __MXL111SF_DEMOD_H__
19 
20 #include <media/dvb_frontend.h>
21 #include "mxl111sf.h"
22 
23 struct mxl111sf_demod_config {
24 	int (*read_reg)(struct mxl111sf_state *state, u8 addr, u8 *data);
25 	int (*write_reg)(struct mxl111sf_state *state, u8 addr, u8 data);
26 	int (*program_regs)(struct mxl111sf_state *state,
27 			    struct mxl111sf_reg_ctrl_info *ctrl_reg_info);
28 };
29 
30 #if IS_ENABLED(CONFIG_DVB_USB_MXL111SF)
31 extern
32 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
33 				   const struct mxl111sf_demod_config *cfg);
34 #else
35 static inline
36 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
37 				   const struct mxl111sf_demod_config *cfg)
38 {
39 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
40 	return NULL;
41 }
42 #endif /* CONFIG_DVB_USB_MXL111SF */
43 
44 #endif /* __MXL111SF_DEMOD_H__ */
45