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  *    You should have received a copy of the GNU General Public License
  18  *    along with this program; if not, write to the Free Software
  19  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #ifndef __ATBM8830_H__
  23 #define __ATBM8830_H__
  24
  25 #include <linux/kconfig.h>
  26 #include <linux/dvb/frontend.h>
  27 #include <linux/i2c.h>
  28
  29 #define ATBM8830_PROD_8830 0
  30 #define ATBM8830_PROD_8831 1
  31
  32 struct atbm8830_config {
  33
  34         /* product type */
  35         u8 prod;
  36
  37         /* the demodulator's i2c address */
  38         u8 demod_address;
  39
  40         /* parallel or serial transport stream */
  41         u8 serial_ts;
  42
  43         /* transport stream clock output only when receiving valid stream */
  44         u8 ts_clk_gated;
  45
  46         /* Decoder sample TS data at rising edge of clock */
  47         u8 ts_sampling_edge;
  48
  49         /* Oscillator clock frequency */
  50         u32 osc_clk_freq; /* in kHz */
  51
  52         /* IF frequency */
  53         u32 if_freq; /* in kHz */
  54
  55         /* Swap I/Q for zero IF */
  56         u8 zif_swap_iq;
  57
  58         /* Tuner AGC settings */
  59         u8 agc_min;
  60         u8 agc_max;
  61         u8 agc_hold_loop;
  62 };
  63
  64 #if IS_REACHABLE(CONFIG_DVB_ATBM8830)
  65 extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
  66                 struct i2c_adapter *i2c);
  67 #else
  68 static inline
  69 struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
  70                 struct i2c_adapter *i2c) {
  71         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  72         return NULL;
  73 }
  74 #endif /* CONFIG_DVB_ATBM8830 */
  75
  76 #endif /* __ATBM8830_H__ */