drivers/media/tuners/mt2131.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Driver for Microtune MT2131 "QAM/8VSB single chip tuner"
   4  *
   5  *  Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
   6  */
   7
   8 #ifndef __MT2131_H__
   9 #define __MT2131_H__
  10
  11 struct dvb_frontend;
  12 struct i2c_adapter;
  13
  14 struct mt2131_config {
  15         u8 i2c_address;
  16         u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */
  17 };
  18
  19 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT2131)
  20 extern struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe,
  21                                           struct i2c_adapter *i2c,
  22                                           struct mt2131_config *cfg,
  23                                           u16 if1);
  24 #else
  25 static inline struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe,
  26                                                  struct i2c_adapter *i2c,
  27                                                  struct mt2131_config *cfg,
  28                                                  u16 if1)
  29 {
  30         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  31         return NULL;
  32 }
  33 #endif /* CONFIG_MEDIA_TUNER_MT2131 */
  34
  35 #endif /* __MT2131_H__ */