drivers/media/dvb-frontends/zl10036.h

   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
  36 struct zl10036_config {
  37         u8 tuner_address;
  38         int rf_loop_enable;
  39 };
  40
  41 #if IS_REACHABLE(CONFIG_DVB_ZL10036)
  42 extern struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
  43         const struct zl10036_config *config, struct i2c_adapter *i2c);
  44 #else
  45 static 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 */