drivers/media/dvb-frontends/drxk.h

   1 #ifndef _DRXK_H_
   2 #define _DRXK_H_
   3
   4 #include <linux/types.h>
   5 #include <linux/i2c.h>
   6
   7 /**
   8  * struct drxk_config - Configure the initial parameters for DRX-K
   9  *
  10  * @adr:                I2C address of the DRX-K
  11  * @parallel_ts:        True means that the device uses parallel TS,
  12  *                      Serial otherwise.
  13  * @dynamic_clk:        True means that the clock will be dynamically
  14  *                      adjusted. Static clock otherwise.
  15  * @enable_merr_cfg:    Enable SIO_PDR_PERR_CFG/SIO_PDR_MVAL_CFG.
  16  * @single_master:      Device is on the single master mode
  17  * @no_i2c_bridge:      Don't switch the I2C bridge to talk with tuner
  18  * @antenna_gpio:       GPIO bit used to control the antenna
  19  * @antenna_dvbt:       GPIO bit for changing antenna to DVB-C. A value of 1
  20  *                      means that 1=DVBC, 0 = DVBT. Zero means the opposite.
  21  * @mpeg_out_clk_strength: DRXK Mpeg output clock drive strength.
  22  * @microcode_name:     Name of the firmware file with the microcode
  23  * @qam_demod_parameter_count:  The number of parameters used for the command
  24  *                              to set the demodulator parameters. All
  25  *                              firmwares are using the 2-parameter commmand.
  26  *                              An exception is the "drxk_a3.mc" firmware,
  27  *                              which uses the 4-parameter command.
  28  *                              A value of 0 (default) or lower indicates that
  29  *                              the correct number of parameters will be
  30  *                              automatically detected.
  31  *
  32  * On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is
  33  * UIO-3.
  34  */
  35 struct drxk_config {
  36         u8      adr;
  37         bool    single_master;
  38         bool    no_i2c_bridge;
  39         bool    parallel_ts;
  40         bool    dynamic_clk;
  41         bool    enable_merr_cfg;
  42
  43         bool    antenna_dvbt;
  44         u16     antenna_gpio;
  45
  46         u8      mpeg_out_clk_strength;
  47         int     chunk_size;
  48
  49         const char      *microcode_name;
  50         int              qam_demod_parameter_count;
  51 };
  52
  53 #if IS_REACHABLE(CONFIG_DVB_DRXK)
  54 extern struct dvb_frontend *drxk_attach(const struct drxk_config *config,
  55                                         struct i2c_adapter *i2c);
  56 #else
  57 static inline struct dvb_frontend *drxk_attach(const struct drxk_config *config,
  58                                         struct i2c_adapter *i2c)
  59 {
  60         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  61         return NULL;
  62 }
  63 #endif
  64
  65 #endif