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  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #ifndef _LNBH24_H
  24 #define _LNBH24_H
  25
  26 #include <linux/kconfig.h>
  27
  28 /* system register bits */
  29 #define LNBH24_OLF      0x01
  30 #define LNBH24_OTF      0x02
  31 #define LNBH24_EN       0x04
  32 #define LNBH24_VSEL     0x08
  33 #define LNBH24_LLC      0x10
  34 #define LNBH24_TEN      0x20
  35 #define LNBH24_TTX      0x40
  36 #define LNBH24_PCL      0x80
  37
  38 #include <linux/dvb/frontend.h>
  39
  40 #if IS_ENABLED(CONFIG_DVB_LNBP21)
  41 /* override_set and override_clear control which
  42    system register bits (above) to always set & clear */
  43 extern struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
  44                                 struct i2c_adapter *i2c, u8 override_set,
  45                                 u8 override_clear, u8 i2c_addr);
  46 #else
  47 static inline struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
  48                                 struct i2c_adapter *i2c, u8 override_set,
  49                                 u8 override_clear, u8 i2c_addr)
  50 {
  51         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  52         return NULL;
  53 }
  54 #endif
  55
  56 #endif