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 66