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/dvb/frontend.h>
  31 #include <media/dvb_frontend.h>
  32
  33 struct stv0288_config {
  34         /* the demodulator's i2c address */
  35         u8 demod_address;
  36
  37         u8* inittab;
  38
  39         /* minimum delay before retuning */
  40         int min_delay_ms;
  41
  42         int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
  43 };
  44
  45 #if IS_REACHABLE(CONFIG_DVB_STV0288)
  46 extern struct dvb_frontend *stv0288_attach(const struct stv0288_config *config,
  47                                            struct i2c_adapter *i2c);
  48 #else
  49 static inline struct dvb_frontend *stv0288_attach(const struct stv0288_config *config,
  50                                            struct i2c_adapter *i2c)
  51 {
  52         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  53         return NULL;
  54 }
  55 #endif /* CONFIG_DVB_STV0288 */
  56
  57 static inline int stv0288_writereg(struct dvb_frontend *fe, u8 reg, u8 val)
  58 {
  59         int r = 0;
  60         u8 buf[] = { reg, val };
  61         if (fe->ops.write)
  62                 r = fe->ops.write(fe, buf, 2);
  63         return r;
  64 }
  65
  66 #endif /* STV0288_H */