linux/drivers/media/dvb-frontends/lnbh24.h
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   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 */
  37extern 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
  41static 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
  51