drivers/media/dvb-frontends/si2165.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Driver for Silicon Labs SI2165 DVB-C/-T Demodulator
   4  *
   5  * Copyright (C) 2013-2017 Matthias Schwarzott <zzam@gentoo.org>
   6  *
   7  * References:
   8  *   https://www.silabs.com/Support%20Documents/TechnicalDocs/Si2165-short.pdf
   9  */
  10
  11 #ifndef _DVB_SI2165_H
  12 #define _DVB_SI2165_H
  13
  14 #include <linux/dvb/frontend.h>
  15
  16 enum {
  17         SI2165_MODE_OFF = 0x00,
  18         SI2165_MODE_PLL_EXT = 0x20,
  19         SI2165_MODE_PLL_XTAL = 0x21
  20 };
  21
  22 /* I2C addresses
  23  * possible values: 0x64,0x65,0x66,0x67
  24  */
  25 struct si2165_platform_data {
  26         /*
  27          * frontend
  28          * returned by driver
  29          */
  30         struct dvb_frontend **fe;
  31
  32         /* external clock or XTAL */
  33         u8 chip_mode;
  34
  35         /* frequency of external clock or xtal in Hz
  36          * possible values: 4000000, 16000000, 20000000, 240000000, 27000000
  37          */
  38         u32 ref_freq_hz;
  39
  40         /* invert the spectrum */
  41         bool inversion;
  42 };
  43
  44 #endif /* _DVB_SI2165_H */