1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  *  mxl111sf-demod.h - driver for the MaxLinear MXL111SF DVB-T demodulator
4  *
5  *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
6  */
7 
8 #ifndef __MXL111SF_DEMOD_H__
9 #define __MXL111SF_DEMOD_H__
10 
11 #include <media/dvb_frontend.h>
12 #include "mxl111sf.h"
13 
14 struct mxl111sf_demod_config {
15 	int (*read_reg)(struct mxl111sf_state *state, u8 addr, u8 *data);
16 	int (*write_reg)(struct mxl111sf_state *state, u8 addr, u8 data);
17 	int (*program_regs)(struct mxl111sf_state *state,
18 			    struct mxl111sf_reg_ctrl_info *ctrl_reg_info);
19 };
20 
21 #if IS_ENABLED(CONFIG_DVB_USB_MXL111SF)
22 extern
23 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
24 				   const struct mxl111sf_demod_config *cfg);
25 #else
26 static inline
27 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
28 				   const struct mxl111sf_demod_config *cfg)
29 {
30 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
31 	return NULL;
32 }
33 #endif /* CONFIG_DVB_USB_MXL111SF */
34 
35 #endif /* __MXL111SF_DEMOD_H__ */
36