LXR linux/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/dvb/frontend.h>
  26#include <linux/i2c.h>
  27
  28#define ATBM8830_PROD_8830 0
  29#define ATBM8830_PROD_8831 1
  30
  31struct atbm8830_config {
  32
  33        /* product type */
  34        u8 prod;
  35
  36        /* the demodulator's i2c address */
  37        u8 demod_address;
  38
  39        /* parallel or serial transport stream */
  40        u8 serial_ts;
  41
  42        /* transport stream clock output only when receiving valid stream */
  43        u8 ts_clk_gated;
  44
  45        /* Decoder sample TS data at rising edge of clock */
  46        u8 ts_sampling_edge;
  47
  48        /* Oscillator clock frequency */
  49        u32 osc_clk_freq; /* in kHz */
  50
  51        /* IF frequency */
  52        u32 if_freq; /* in kHz */
  53
  54        /* Swap I/Q for zero IF */
  55        u8 zif_swap_iq;
  56
  57        /* Tuner AGC settings */
  58        u8 agc_min;
  59        u8 agc_max;
  60        u8 agc_hold_loop;
  61};
  62
  63#if defined(CONFIG_DVB_ATBM8830) || \
  64        (defined(CONFIG_DVB_ATBM8830_MODULE) && defined(MODULE))
  65extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
  66                struct i2c_adapter *i2c);
  67#else
  68static inline
  69struct 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__ */
  77