drivers/media/dvb-frontends/zl10036.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Driver for Zarlink ZL10036 DVB-S silicon tuner
   4  *
   5  * Copyright (C) 2006 Tino Reichardt
   6  * Copyright (C) 2007-2009 Matthias Schwarzott <zzam@gentoo.de>
   7  */
   8
   9 #ifndef DVB_ZL10036_H
  10 #define DVB_ZL10036_H
  11
  12 #include <linux/i2c.h>
  13 #include <media/dvb_frontend.h>
  14
  15 struct zl10036_config {
  16         u8 tuner_address;
  17         int rf_loop_enable;
  18 };
  19
  20 #if IS_REACHABLE(CONFIG_DVB_ZL10036)
  21 /**
  22  * zl10036_attach - Attach a zl10036 tuner to the supplied frontend structure.
  23  *
  24  * @fe: Frontend to attach to.
  25  * @config: zl10036_config structure.
  26  * @i2c: pointer to struct i2c_adapter.
  27  * return: FE pointer on success, NULL on failure.
  28  */
  29 extern struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
  30         const struct zl10036_config *config, struct i2c_adapter *i2c);
  31 #else
  32 static inline struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
  33         const struct zl10036_config *config, struct i2c_adapter *i2c)
  34 {
  35         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  36         return NULL;
  37 }
  38 #endif
  39
  40 #endif /* DVB_ZL10036_H */