| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _DRXK_H_ |
| #define _DRXK_H_ |
| |
| #include <linux/types.h> |
| #include <linux/i2c.h> |
| |
| /** |
| * struct drxk_config - Configure the initial parameters for DRX-K |
| * |
| * @adr: I2C address of the DRX-K |
| * @parallel_ts: True means that the device uses parallel TS, |
| * Serial otherwise. |
| * @dynamic_clk: True means that the clock will be dynamically |
| * adjusted. Static clock otherwise. |
| * @enable_merr_cfg: Enable SIO_PDR_PERR_CFG/SIO_PDR_MVAL_CFG. |
| * @single_master: Device is on the single master mode |
| * @no_i2c_bridge: Don't switch the I2C bridge to talk with tuner |
| * @antenna_gpio: GPIO bit used to control the antenna |
| * @antenna_dvbt: GPIO bit for changing antenna to DVB-C. A value of 1 |
| * means that 1=DVBC, 0 = DVBT. Zero means the opposite. |
| * @mpeg_out_clk_strength: DRXK Mpeg output clock drive strength. |
| * @chunk_size: maximum size for I2C messages |
| * @microcode_name: Name of the firmware file with the microcode |
| * @qam_demod_parameter_count: The number of parameters used for the command |
| * to set the demodulator parameters. All |
| * firmwares are using the 2-parameter command. |
| * An exception is the ``drxk_a3.mc`` firmware, |
| * which uses the 4-parameter command. |
| * A value of 0 (default) or lower indicates that |
| * the correct number of parameters will be |
| * automatically detected. |
| * |
| * On the ``*_gpio`` vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is |
| * UIO-3. |
| */ |
| struct drxk_config { |
| u8 adr; |
| bool single_master; |
| bool no_i2c_bridge; |
| bool parallel_ts; |
| bool dynamic_clk; |
| bool enable_merr_cfg; |
| |
| bool antenna_dvbt; |
| u16 antenna_gpio; |
| |
| u8 mpeg_out_clk_strength; |
| int chunk_size; |
| |
| const char *microcode_name; |
| int qam_demod_parameter_count; |
| }; |
| |
| #if IS_REACHABLE(CONFIG_DVB_DRXK) |
| /** |
| * Attach a drxk demod |
| * |
| * @config: pointer to &struct drxk_config with demod configuration. |
| * @i2c: i2c adapter to use. |
| * |
| * return: FE pointer on success, NULL on failure. |
| */ |
| extern struct dvb_frontend *drxk_attach(const struct drxk_config *config, |
| struct i2c_adapter *i2c); |
| #else |
| static inline struct dvb_frontend *drxk_attach(const struct drxk_config *config, |
| struct i2c_adapter *i2c) |
| { |
| printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
| return NULL; |
| } |
| #endif |
| |
| #endif |
