drivers/media/dvb/frontends/s5h1409.h

   1 /*
   2     Samsung S5H1409 VSB/QAM demodulator driver
   3
   4     Copyright (C) 2006 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
  22 #ifndef __S5H1409_H__
  23 #define __S5H1409_H__
  24
  25 #include <linux/dvb/frontend.h>
  26
  27 struct s5h1409_config
  28 {
  29         /* the demodulator's i2c address */
  30         u8 demod_address;
  31
  32         /* serial/parallel output */
  33 #define S5H1409_PARALLEL_OUTPUT 0
  34 #define S5H1409_SERIAL_OUTPUT   1
  35         u8 output_mode;
  36
  37         /* GPIO Setting */
  38 #define S5H1409_GPIO_OFF 0
  39 #define S5H1409_GPIO_ON  1
  40         u8 gpio;
  41
  42         /* IF Freq in KHz */
  43         u16 if_freq;
  44
  45         /* Spectral Inversion */
  46 #define S5H1409_INVERSION_OFF 0
  47 #define S5H1409_INVERSION_ON  1
  48         u8 inversion;
  49
  50         /* Return lock status based on tuner lock, or demod lock */
  51 #define S5H1409_TUNERLOCKING 0
  52 #define S5H1409_DEMODLOCKING 1
  53         u8 status_mode;
  54 };
  55
  56 #if defined(CONFIG_DVB_S5H1409) || defined(CONFIG_DVB_S5H1409_MODULE)
  57 extern struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config,
  58                                            struct i2c_adapter* i2c);
  59 #else
  60 static inline struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config,
  61                                                   struct i2c_adapter* i2c)
  62 {
  63         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
  64         return NULL;
  65 }
  66 #endif /* CONFIG_DVB_S5H1409 */
  67
  68 #endif /* __S5H1409_H__ */
  69
  70 /*
  71  * Local variables:
  72  * c-basic-offset: 8
  73  */