linux/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h
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   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
  28struct 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)
  36extern
  37struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
  38                                           struct mxl111sf_demod_config *cfg);
  39#else
  40static inline
  41struct 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 */
  56