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kernel/linux-imx6_3.14.28/drivers/media/dvb-frontends/drxk.h 1.99 KB
6b13f685e   김민수   BSP 최초 추가
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  #ifndef _DRXK_H_
  #define _DRXK_H_
  
  #include <linux/kconfig.h>
  #include <linux/types.h>
  #include <linux/i2c.h>
  
  /**
   * struct drxk_config - Configure the initial parameters for DRX-K
   *
   * @adr:		I2C address of the DRX-K
   * @parallel_ts:	True means that the device uses parallel TS,
   * 			Serial otherwise.
   * @dynamic_clk:	True means that the clock will be dynamically
   *			adjusted. Static clock otherwise.
   * @enable_merr_cfg:	Enable SIO_PDR_PERR_CFG/SIO_PDR_MVAL_CFG.
   * @single_master:	Device is on the single master mode
   * @no_i2c_bridge:	Don't switch the I2C bridge to talk with tuner
   * @antenna_gpio:	GPIO bit used to control the antenna
   * @antenna_dvbt:	GPIO bit for changing antenna to DVB-C. A value of 1
   *			means that 1=DVBC, 0 = DVBT. Zero means the opposite.
   * @mpeg_out_clk_strength: DRXK Mpeg output clock drive strength.
   * @microcode_name:	Name of the firmware file with the microcode
   * @qam_demod_parameter_count:	The number of parameters used for the command
   *				to set the demodulator parameters. All
   *				firmwares are using the 2-parameter commmand.
   *				An exception is the "drxk_a3.mc" firmware,
   *				which uses the 4-parameter command.
   *				A value of 0 (default) or lower indicates that
   *				the correct number of parameters will be
   *				automatically detected.
   *
   * On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is
   * UIO-3.
   */
  struct drxk_config {
  	u8	adr;
  	bool	single_master;
  	bool	no_i2c_bridge;
  	bool	parallel_ts;
  	bool	dynamic_clk;
  	bool	enable_merr_cfg;
  
  	bool	antenna_dvbt;
  	u16	antenna_gpio;
  
  	u8	mpeg_out_clk_strength;
  	int	chunk_size;
  
  	const char	*microcode_name;
  	int		 qam_demod_parameter_count;
  };
  
  #if IS_ENABLED(CONFIG_DVB_DRXK)
  extern struct dvb_frontend *drxk_attach(const struct drxk_config *config,
  					struct i2c_adapter *i2c);
  #else
  static inline struct dvb_frontend *drxk_attach(const struct drxk_config *config,
  					struct i2c_adapter *i2c)
  {
          printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
          return NULL;
  }
  #endif
  
  #endif