LXR linux/drivers/media/dvb-frontends/drxd.h

   1/*
   2 * drxd.h: DRXD DVB-T demodulator driver
   3 *
   4 * Copyright (C) 2005-2007 Micronas
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License
   8 * version 2 only, as published by the Free Software Foundation.
   9 *
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  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., 51 Franklin Street, Fifth Floor, Boston, MA
  20 * 02110-1301, USA
  21 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  22 */
  23
  24#ifndef _DRXD_H_
  25#define _DRXD_H_
  26
  27#include <linux/kconfig.h>
  28#include <linux/types.h>
  29#include <linux/i2c.h>
  30
  31struct drxd_config {
  32        u8 index;
  33
  34        u8 pll_address;
  35        u8 pll_type;
  36#define DRXD_PLL_NONE     0
  37#define DRXD_PLL_DTT7520X 1
  38#define DRXD_PLL_MT3X0823 2
  39
  40        u32 clock;
  41        u8 insert_rs_byte;
  42
  43        u8 demod_address;
  44        u8 demoda_address;
  45        u8 demod_revision;
  46
  47        /* If the tuner is not behind an i2c gate, be sure to flip this bit
  48           or else the i2c bus could get wedged */
  49        u8 disable_i2c_gate_ctrl;
  50
  51        u32 IF;
  52         s16(*osc_deviation) (void *priv, s16 dev, int flag);
  53};
  54
  55#if IS_ENABLED(CONFIG_DVB_DRXD)
  56extern
  57struct dvb_frontend *drxd_attach(const struct drxd_config *config,
  58                                 void *priv, struct i2c_adapter *i2c,
  59                                 struct device *dev);
  60#else
  61static inline
  62struct dvb_frontend *drxd_attach(const struct drxd_config *config,
  63                                 void *priv, struct i2c_adapter *i2c,
  64                                 struct device *dev)
  65{
  66        printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",
  67               __func__);
  68        return NULL;
  69}
  70#endif
  71
  72extern int drxd_config_i2c(struct dvb_frontend *, int);
  73#endif
  74