drivers/media/dvb/frontends/cx24123.h

   1 /*
   2     Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
   3
   4     Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #ifndef CX24123_H
  22 #define CX24123_H
  23
  24 #include <linux/dvb/frontend.h>
  25
  26 struct cx24123_config
  27 {
  28         /* the demodulator's i2c address */
  29         u8 demod_address;
  30
  31         /*
  32            cards like Hauppauge Nova-S Plus/Nova-SE2 use an Intersil ISL6421 chip
  33            for LNB control, while KWorld DVB-S 100 use the LNBDC and LNBTone bits
  34            from register 0x29 of the CX24123 demodulator
  35         */
  36         int use_isl6421;
  37
  38         /* PLL maintenance */
  39         int (*pll_init)(struct dvb_frontend* fe);
  40         int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
  41
  42         /* Need to set device param for start_dma */
  43         int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
  44
  45         void (*enable_lnb_voltage)(struct dvb_frontend* fe, int on);
  46 };
  47
  48 extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
  49                                            struct i2c_adapter* i2c);
  50
  51 #endif /* CX24123_H */