drivers/media/dvb-frontends/drxk.h

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