drivers/media/dvb-frontends/atbm8830.h

   1 /*
   2  *    Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator
   3  *    ATBM8830, ATBM8831
   4  *
   5  *    Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com>
   6  *
   7  *    This program is free software; you can redistribute it and/or modify
   8  *    it under the terms of the GNU General Public License as published by
   9  *    the Free Software Foundation; either version 2 of the License, or
  10  *    (at your option) any later version.
  11  *
  12  *    This program is distributed in the hope that it will be useful,
  13  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *    GNU General Public License for more details.
  16  */
  17
  18 #ifndef __ATBM8830_H__
  19 #define __ATBM8830_H__
  20
  21 #include <linux/dvb/frontend.h>
  22 #include <linux/i2c.h>
  23
  24 #define ATBM8830_PROD_8830 0
  25 #define ATBM8830_PROD_8831 1
  26
  27 struct atbm8830_config {
  28
  29         /* product type */
  30         u8 prod;
  31
  32         /* the demodulator's i2c address */
  33         u8 demod_address;
  34
  35         /* parallel or serial transport stream */
  36         u8 serial_ts;
  37
  38         /* transport stream clock output only when receiving valid stream */
  39         u8 ts_clk_gated;
  40
  41         /* Decoder sample TS data at rising edge of clock */
  42         u8 ts_sampling_edge;
  43
  44         /* Oscillator clock frequency */
  45         u32 osc_clk_freq; /* in kHz */
  46
  47         /* IF frequency */
  48         u32 if_freq; /* in kHz */
  49
  50         /* Swap I/Q for zero IF */
  51         u8 zif_swap_iq;
  52
  53         /* Tuner AGC settings */
  54         u8 agc_min;
  55         u8 agc_max;
  56         u8 agc_hold_loop;
  57 };
  58
  59 #if IS_REACHABLE(CONFIG_DVB_ATBM8830)
  60 extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
  61                 struct i2c_adapter *i2c);
  62 #else
  63 static inline
  64 struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
  65                 struct i2c_adapter *i2c) {
  66         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  67         return NULL;
  68 }
  69 #endif /* CONFIG_DVB_ATBM8830 */
  70
  71 #endif /* __ATBM8830_H__ */