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 67