drivers/media/dvb-frontends/nxt200x.h

   1 /*
   2  *    Support for NXT2002 and NXT2004 - VSB/QAM
   3  *
   4  *    Copyright (C) 2005 Kirk Lapray (kirk.lapray@gmail.com)
   5  *    based on nxt2002 by Taylor Jacob <rtjacob@earthlink.net>
   6  *    and nxt2004 by Jean-Francois Thibert (jeanfrancois@sagetv.com)
   7  *
   8  *    This program is free software; you can redistribute it and/or modify
   9  *    it under the terms of the GNU General Public License as published by
  10  *    the Free Software Foundation; either version 2 of the License, or
  11  *    (at your option) any later version.
  12  *
  13  *    This program is distributed in the hope that it will be useful,
  14  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  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
  24 #ifndef NXT200X_H
  25 #define NXT200X_H
  26
  27 #include <linux/dvb/frontend.h>
  28 #include <linux/firmware.h>
  29
  30 typedef enum nxt_chip_t {
  31                 NXTUNDEFINED,
  32                 NXT2002,
  33                 NXT2004
  34 }nxt_chip_type;
  35
  36 struct nxt200x_config
  37 {
  38         /* the demodulator's i2c address */
  39         u8 demod_address;
  40
  41         /* need to set device param for start_dma */
  42         int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
  43 };
  44
  45 #if IS_REACHABLE(CONFIG_DVB_NXT200X)
  46 extern struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
  47                                            struct i2c_adapter* i2c);
  48 #else
  49 static inline struct dvb_frontend* nxt200x_attach(const struct nxt200x_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_NXT200X
  56
  57 #endif /* NXT200X_H */