drivers/media/dvb-frontends/s5h1409.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3     Samsung S5H1409 VSB/QAM demodulator driver
   4
   5     Copyright (C) 2006 Steven Toth <stoth@linuxtv.org>
   6
   7
   8 */
   9
  10 #ifndef __S5H1409_H__
  11 #define __S5H1409_H__
  12
  13 #include <linux/dvb/frontend.h>
  14
  15 struct s5h1409_config {
  16         /* the demodulator's i2c address */
  17         u8 demod_address;
  18
  19         /* serial/parallel output */
  20 #define S5H1409_PARALLEL_OUTPUT 0
  21 #define S5H1409_SERIAL_OUTPUT   1
  22         u8 output_mode;
  23
  24         /* GPIO Setting */
  25 #define S5H1409_GPIO_OFF 0
  26 #define S5H1409_GPIO_ON  1
  27         u8 gpio;
  28
  29         /* IF Freq for QAM in KHz, VSB is hardcoded to 5380 */
  30         u16 qam_if;
  31
  32         /* Spectral Inversion */
  33 #define S5H1409_INVERSION_OFF 0
  34 #define S5H1409_INVERSION_ON  1
  35         u8 inversion;
  36
  37         /* Return lock status based on tuner lock, or demod lock */
  38 #define S5H1409_TUNERLOCKING 0
  39 #define S5H1409_DEMODLOCKING 1
  40         u8 status_mode;
  41
  42         /* MPEG signal timing */
  43 #define S5H1409_MPEGTIMING_CONTINUOUS_INVERTING_CLOCK       0
  44 #define S5H1409_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK    1
  45 #define S5H1409_MPEGTIMING_NONCONTINUOUS_INVERTING_CLOCK    2
  46 #define S5H1409_MPEGTIMING_NONCONTINUOUS_NONINVERTING_CLOCK 3
  47         u16 mpeg_timing;
  48
  49         /* HVR-1600 optimizations (to better work with MXL5005s)
  50            Note: some of these are likely to be folded into the generic driver
  51            after being regression tested with other boards */
  52 #define S5H1409_HVR1600_NOOPTIMIZE 0
  53 #define S5H1409_HVR1600_OPTIMIZE   1
  54         u8 hvr1600_opt;
  55 };
  56
  57 #if IS_REACHABLE(CONFIG_DVB_S5H1409)
  58 extern struct dvb_frontend *s5h1409_attach(const struct s5h1409_config *config,
  59                                            struct i2c_adapter *i2c);
  60 #else
  61 static inline struct dvb_frontend *s5h1409_attach(
  62         const struct s5h1409_config *config,
  63         struct i2c_adapter *i2c)
  64 {
  65         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  66         return NULL;
  67 }
  68 #endif /* CONFIG_DVB_S5H1409 */
  69
  70 #endif /* __S5H1409_H__ */