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

   1 /*
   2  *  mxl111sf-demod.h - driver for the MaxLinear MXL111SF DVB-T demodulator
   3  *
   4  *  Copyright (C) 2010 Michael Krufky <mkrufky@kernellabs.com>
   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 __MXL111SF_DEMOD_H__
  22 #define __MXL111SF_DEMOD_H__
  23
  24 #include <linux/kconfig.h>
  25 #include "dvb_frontend.h"
  26 #include "mxl111sf.h"
  27
  28 struct mxl111sf_demod_config {
  29         int (*read_reg)(struct mxl111sf_state *state, u8 addr, u8 *data);
  30         int (*write_reg)(struct mxl111sf_state *state, u8 addr, u8 data);
  31         int (*program_regs)(struct mxl111sf_state *state,
  32                             struct mxl111sf_reg_ctrl_info *ctrl_reg_info);
  33 };
  34
  35 #if IS_ENABLED(CONFIG_DVB_USB_MXL111SF)
  36 extern
  37 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
  38                                            struct mxl111sf_demod_config *cfg);
  39 #else
  40 static inline
  41 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
  42                                            struct mxl111sf_demod_config *cfg)
  43 {
  44         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  45         return NULL;
  46 }
  47 #endif /* CONFIG_DVB_USB_MXL111SF */
  48
  49 #endif /* __MXL111SF_DEMOD_H__ */
  50
  51 /*
  52  * Local variables:
  53  * c-basic-offset: 8
  54  * End:
  55  */