drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h

   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__ */