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 * @load_firmware_sync: Force the firmware load to be synchronous. 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 bool load_firmware_sync; 44 45 bool antenna_dvbt; 46 u16 antenna_gpio; 47 48 u8 mpeg_out_clk_strength; 49 int chunk_size; 50 51 const char *microcode_name; 52 int qam_demod_parameter_count; 53 }; 54 55 #if defined(CONFIG_DVB_DRXK) || (defined(CONFIG_DVB_DRXK_MODULE) \ 56 && defined(MODULE)) 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