linux/drivers/media/dvb-frontends/zl10036.h
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   1/**
   2 * Driver for Zarlink ZL10036 DVB-S silicon tuner
   3 *
   4 * Copyright (C) 2006 Tino Reichardt
   5 * Copyright (C) 2007-2009 Matthias Schwarzott <zzam@gentoo.de>
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License Version 2, as
   9 * published by the Free Software Foundation.
  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 DVB_ZL10036_H
  22#define DVB_ZL10036_H
  23
  24#include <linux/kconfig.h>
  25#include <linux/i2c.h>
  26#include "dvb_frontend.h"
  27
  28/**
  29 * Attach a zl10036 tuner to the supplied frontend structure.
  30 *
  31 * @param fe Frontend to attach to.
  32 * @param config zl10036_config structure
  33 * @return FE pointer on success, NULL on failure.
  34 */
  35
  36struct zl10036_config {
  37        u8 tuner_address;
  38        int rf_loop_enable;
  39};
  40
  41#if IS_ENABLED(CONFIG_DVB_ZL10036)
  42extern struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
  43        const struct zl10036_config *config, struct i2c_adapter *i2c);
  44#else
  45static inline struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
  46        const struct zl10036_config *config, struct i2c_adapter *i2c)
  47{
  48        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  49        return NULL;
  50}
  51#endif
  52
  53#endif /* DVB_ZL10036_H */
  54