drivers/media/dvb-frontends/s5h1409.h

   1 /*
   2     Samsung S5H1409 VSB/QAM demodulator driver
   3
   4     Copyright (C) 2006 Steven Toth <stoth@linuxtv.org>
   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         /* the demodulator's i2c address */
  29         u8 demod_address;
  30
  31         /* serial/parallel output */
  32 #define S5H1409_PARALLEL_OUTPUT 0
  33 #define S5H1409_SERIAL_OUTPUT   1
  34         u8 output_mode;
  35
  36         /* GPIO Setting */
  37 #define S5H1409_GPIO_OFF 0
  38 #define S5H1409_GPIO_ON  1
  39         u8 gpio;
  40
  41         /* IF Freq for QAM in KHz, VSB is hardcoded to 5380 */
  42         u16 qam_if;
  43
  44         /* Spectral Inversion */
  45 #define S5H1409_INVERSION_OFF 0
  46 #define S5H1409_INVERSION_ON  1
  47         u8 inversion;
  48
  49         /* Return lock status based on tuner lock, or demod lock */
  50 #define S5H1409_TUNERLOCKING 0
  51 #define S5H1409_DEMODLOCKING 1
  52         u8 status_mode;
  53
  54         /* MPEG signal timing */
  55 #define S5H1409_MPEGTIMING_CONTINOUS_INVERTING_CLOCK       0
  56 #define S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK    1
  57 #define S5H1409_MPEGTIMING_NONCONTINOUS_INVERTING_CLOCK    2
  58 #define S5H1409_MPEGTIMING_NONCONTINOUS_NONINVERTING_CLOCK 3
  59         u16 mpeg_timing;
  60
  61         /* HVR-1600 optimizations (to better work with MXL5005s)
  62            Note: some of these are likely to be folded into the generic driver
  63            after being regression tested with other boards */
  64 #define S5H1409_HVR1600_NOOPTIMIZE 0
  65 #define S5H1409_HVR1600_OPTIMIZE   1
  66         u8 hvr1600_opt;
  67 };
  68
  69 #if IS_REACHABLE(CONFIG_DVB_S5H1409)
  70 extern struct dvb_frontend *s5h1409_attach(const struct s5h1409_config *config,
  71                                            struct i2c_adapter *i2c);
  72 #else
  73 static inline struct dvb_frontend *s5h1409_attach(
  74         const struct s5h1409_config *config,
  75         struct i2c_adapter *i2c)
  76 {
  77         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  78         return NULL;
  79 }
  80 #endif /* CONFIG_DVB_S5H1409 */
  81
  82 #endif /* __S5H1409_H__ */