drivers/media/dvb-frontends/lnbh24.h

   1 /*
   2  * lnbh24.h - driver for lnb supply and control ic lnbh24
   3  *
   4  * Copyright (C) 2009 NetUP Inc.
   5  * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
   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 as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *
  16  * GNU General Public License for more details.
  17  */
  18
  19 #ifndef _LNBH24_H
  20 #define _LNBH24_H
  21
  22 /* system register bits */
  23 #define LNBH24_OLF      0x01
  24 #define LNBH24_OTF      0x02
  25 #define LNBH24_EN       0x04
  26 #define LNBH24_VSEL     0x08
  27 #define LNBH24_LLC      0x10
  28 #define LNBH24_TEN      0x20
  29 #define LNBH24_TTX      0x40
  30 #define LNBH24_PCL      0x80
  31
  32 #include <linux/dvb/frontend.h>
  33
  34 #if IS_REACHABLE(CONFIG_DVB_LNBP21)
  35 /* override_set and override_clear control which
  36    system register bits (above) to always set & clear */
  37 extern struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
  38                                 struct i2c_adapter *i2c, u8 override_set,
  39                                 u8 override_clear, u8 i2c_addr);
  40 #else
  41 static inline struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
  42                                 struct i2c_adapter *i2c, u8 override_set,
  43                                 u8 override_clear, u8 i2c_addr)
  44 {
  45         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  46         return NULL;
  47 }
  48 #endif
  49
  50 #endif