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kernel/linux-imx6_3.14.28/drivers/media/dvb-frontends/hd29l2.h 1.79 KB
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  /*
   * HDIC HD29L2 DMB-TH demodulator driver
   *
   * Copyright (C) 2011 Metropolia University of Applied Sciences, Electria R&D
   *
   * Author: Antti Palosaari <crope@iki.fi>
   *
   *    This program is free software; you can redistribute it and/or modify
   *    it under the terms of the GNU General Public License as published by
   *    the Free Software Foundation; either version 2 of the License, or
   *    (at your option) any later version.
   *
   *    This program is distributed in the hope that it will be useful,
   *    but WITHOUT ANY WARRANTY; without even the implied warranty of
   *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *    GNU General Public License for more details.
   *
   *    You should have received a copy of the GNU General Public License
   *    along with this program; if not, write to the Free Software
   *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   */
  
  #ifndef HD29L2_H
  #define HD29L2_H
  
  #include <linux/kconfig.h>
  #include <linux/dvb/frontend.h>
  
  struct hd29l2_config {
  	/*
  	 * demodulator I2C address
  	 */
  	u8 i2c_addr;
  
  	/*
  	 * tuner I2C address
  	 * only needed when tuner is behind demod I2C-gate
  	 */
  	u8 tuner_i2c_addr;
  
  	/*
  	 * TS settings
  	 */
  #define HD29L2_TS_SERIAL            0x00
  #define HD29L2_TS_PARALLEL          0x80
  #define HD29L2_TS_CLK_NORMAL        0x40
  #define HD29L2_TS_CLK_INVERTED      0x00
  #define HD29L2_TS_CLK_GATED         0x20
  #define HD29L2_TS_CLK_FREE          0x00
  	u8 ts_mode;
  };
  
  
  #if IS_ENABLED(CONFIG_DVB_HD29L2)
  extern struct dvb_frontend *hd29l2_attach(const struct hd29l2_config *config,
  	struct i2c_adapter *i2c);
  #else
  static inline struct dvb_frontend *hd29l2_attach(
  const struct hd29l2_config *config, struct i2c_adapter *i2c)
  {
  	pr_warn("%s: driver disabled by Kconfig
  ", __func__);
  	return NULL;
  }
  #endif
  
  #endif /* HD29L2_H */