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 * @load_firmware_sync: Force the firmware load to be synchronous. 33 * 34 * On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is 35 * UIO-3. 36 */ 37 struct drxk_config { 38 u8 adr; 39 bool single_master; 40 bool no_i2c_bridge; 41 bool parallel_ts; 42 bool dynamic_clk; 43 bool enable_merr_cfg; 44 bool load_firmware_sync; 45 46 bool antenna_dvbt; 47 u16 antenna_gpio; 48 49 u8 mpeg_out_clk_strength; 50 int chunk_size; 51 52 const char *microcode_name; 53 int qam_demod_parameter_count; 54 }; 55 56 #if IS_ENABLED(CONFIG_DVB_DRXK) 57 extern struct dvb_frontend *drxk_attach(const struct drxk_config *config, 58 struct i2c_adapter *i2c); 59 #else 60 static inline struct dvb_frontend *drxk_attach(const struct drxk_config *config, 61 struct i2c_adapter *i2c) 62 { 63 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 64 return NULL; 65 } 66 #endif 67 68 #endif 69