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
  31 struct 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)
  56 extern
  57 struct dvb_frontend *drxd_attach(const struct drxd_config *config,
  58                                  void *priv, struct i2c_adapter *i2c,
  59                                  struct device *dev);
  60 #else
  61 static inline
  62 struct 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
  72 extern int drxd_config_i2c(struct dvb_frontend *, int);
  73 #endif