drivers/media/dvb-frontends/stv0288.h

   1 /*
   2         Driver for ST STV0288 demodulator
   3
   4         Copyright (C) 2006 Georg Acher, BayCom GmbH, acher (at) baycom (dot) de
   5                 for Reel Multimedia
   6         Copyright (C) 2008 TurboSight.com, <bob@turbosight.com>
   7         Copyright (C) 2008 Igor M. Liplianin <liplianin@me.by>
   8                 Removed stb6000 specific tuner code and revised some
   9                 procedures.
  10
  11         This program is free software; you can redistribute it and/or modify
  12         it under the terms of the GNU General Public License as published by
  13         the Free Software Foundation; either version 2 of the License, or
  14         (at your option) any later version.
  15
  16         This program is distributed in the hope that it will be useful,
  17         but WITHOUT ANY WARRANTY; without even the implied warranty of
  18         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19         GNU General Public License for more details.
  20
  21         You should have received a copy of the GNU General Public License
  22         along with this program; if not, write to the Free Software
  23         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24
  25 */
  26
  27 #ifndef STV0288_H
  28 #define STV0288_H
  29
  30 #include <linux/kconfig.h>
  31 #include <linux/dvb/frontend.h>
  32 #include "dvb_frontend.h"
  33
  34 struct stv0288_config {
  35         /* the demodulator's i2c address */
  36         u8 demod_address;
  37
  38         u8* inittab;
  39
  40         /* minimum delay before retuning */
  41         int min_delay_ms;
  42
  43         int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
  44 };
  45
  46 #if IS_REACHABLE(CONFIG_DVB_STV0288)
  47 extern struct dvb_frontend *stv0288_attach(const struct stv0288_config *config,
  48                                            struct i2c_adapter *i2c);
  49 #else
  50 static inline struct dvb_frontend *stv0288_attach(const struct stv0288_config *config,
  51                                            struct i2c_adapter *i2c)
  52 {
  53         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  54         return NULL;
  55 }
  56 #endif /* CONFIG_DVB_STV0288 */
  57
  58 static inline int stv0288_writereg(struct dvb_frontend *fe, u8 reg, u8 val)
  59 {
  60         int r = 0;
  61         u8 buf[] = { reg, val };
  62         if (fe->ops.write)
  63                 r = fe->ops.write(fe, buf, 2);
  64         return r;
  65 }
  66
  67 #endif /* STV0288_H */