drivers/media/tuners/max2165.h

   1 /*
   2  *  Driver for Maxim MAX2165 silicon tuner
   3  *
   4  *  Copyright (c) 2009 David T. L. Wong <davidtlwong@gmail.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  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  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #ifndef __MAX2165_H__
  23 #define __MAX2165_H__
  24
  25 #include <linux/kconfig.h>
  26
  27 struct dvb_frontend;
  28 struct i2c_adapter;
  29
  30 struct max2165_config {
  31         u8 i2c_address;
  32         u8 osc_clk; /* in MHz, selectable values: 4,16,18,20,22,24,26,28 */
  33 };
  34
  35 #if IS_ENABLED(CONFIG_MEDIA_TUNER_MAX2165)
  36 extern struct dvb_frontend *max2165_attach(struct dvb_frontend *fe,
  37         struct i2c_adapter *i2c,
  38         struct max2165_config *cfg);
  39 #else
  40 static inline struct dvb_frontend *max2165_attach(struct dvb_frontend *fe,
  41         struct i2c_adapter *i2c,
  42         struct max2165_config *cfg)
  43 {
  44         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  45         return NULL;
  46 }
  47 #endif
  48
  49 #endif