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kernel/linux-imx6_3.14.28/drivers/media/dvb-frontends/atbm8830.h 2.03 KB
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  /*
   *    Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator
   *    ATBM8830, ATBM8831
   *
   *    Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com>
   *
   *    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 __ATBM8830_H__
  #define __ATBM8830_H__
  
  #include <linux/kconfig.h>
  #include <linux/dvb/frontend.h>
  #include <linux/i2c.h>
  
  #define ATBM8830_PROD_8830 0
  #define ATBM8830_PROD_8831 1
  
  struct atbm8830_config {
  
  	/* product type */
  	u8 prod;
  
  	/* the demodulator's i2c address */
  	u8 demod_address;
  
  	/* parallel or serial transport stream */
  	u8 serial_ts;
  
  	/* transport stream clock output only when receiving valid stream */
  	u8 ts_clk_gated;
  
  	/* Decoder sample TS data at rising edge of clock */
  	u8 ts_sampling_edge;
  
  	/* Oscillator clock frequency */
  	u32 osc_clk_freq; /* in kHz */
  
  	/* IF frequency */
  	u32 if_freq; /* in kHz */
  
  	/* Swap I/Q for zero IF */
  	u8 zif_swap_iq;
  
  	/* Tuner AGC settings */
  	u8 agc_min;
  	u8 agc_max;
  	u8 agc_hold_loop;
  };
  
  #if IS_ENABLED(CONFIG_DVB_ATBM8830)
  extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
  		struct i2c_adapter *i2c);
  #else
  static inline
  struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
  		struct i2c_adapter *i2c) {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
  	return NULL;
  }
  #endif /* CONFIG_DVB_ATBM8830 */
  
  #endif /* __ATBM8830_H__ */