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
  17 #ifndef DVB_ZL10036_H
  18 #define DVB_ZL10036_H
  19
  20 #include <linux/i2c.h>
  21 #include <media/dvb_frontend.h>
  22
  23 struct zl10036_config {
  24         u8 tuner_address;
  25         int rf_loop_enable;
  26 };
  27
  28 #if IS_REACHABLE(CONFIG_DVB_ZL10036)
  29 /**
  30  * Attach a zl10036 tuner to the supplied frontend structure.
  31  *
  32  * @fe: Frontend to attach to.
  33  * @config: zl10036_config structure.
  34  * @i2c: pointer to struct i2c_adapter.
  35  * return: FE pointer on success, NULL on failure.
  36  */
  37 extern struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
  38         const struct zl10036_config *config, struct i2c_adapter *i2c);
  39 #else
  40 static inline struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
  41         const struct zl10036_config *config, struct i2c_adapter *i2c)
  42 {
  43         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  44         return NULL;
  45 }
  46 #endif
  47
  48 #endif /* DVB_ZL10036_H */