1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 Montage Technology TS2020 - Silicon Tuner driver 4 Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com> 5 6 Copyright (C) 2009-2012 TurboSight.com 7 8 */ 9 10 #ifndef TS2020_H 11 #define TS2020_H 12 13 #include <linux/dvb/frontend.h> 14 15 struct ts2020_config { 16 u8 tuner_address; 17 u32 frequency_div; 18 19 /* 20 * RF loop-through 21 */ 22 bool loop_through:1; 23 24 /* 25 * clock output 26 */ 27 #define TS2020_CLK_OUT_DISABLED 0 28 #define TS2020_CLK_OUT_ENABLED 1 29 #define TS2020_CLK_OUT_ENABLED_XTALOUT 2 30 u8 clk_out:2; 31 32 /* 33 * clock output divider 34 * 1 - 31 35 */ 36 u8 clk_out_div:5; 37 38 /* Set to true to suppress stat polling */ 39 bool dont_poll:1; 40 41 /* 42 * pointer to DVB frontend 43 */ 44 struct dvb_frontend *fe; 45 46 /* 47 * driver private, do not set value 48 */ 49 u8 attach_in_use:1; 50 51 /* Operation to be called by the ts2020 driver to get the value of the 52 * AGC PWM tuner input as theoretically output by the demodulator. 53 */ 54 int (*get_agc_pwm)(struct dvb_frontend *fe, u8 *_agc_pwm); 55 }; 56 57 /* Do not add new ts2020_attach() users! Use I2C bindings instead. */ 58 #if IS_REACHABLE(CONFIG_DVB_TS2020) 59 extern struct dvb_frontend *ts2020_attach( 60 struct dvb_frontend *fe, 61 const struct ts2020_config *config, 62 struct i2c_adapter *i2c); 63 #else ts2020_attach(struct dvb_frontend * fe,const struct ts2020_config * config,struct i2c_adapter * i2c)64static inline struct dvb_frontend *ts2020_attach( 65 struct dvb_frontend *fe, 66 const struct ts2020_config *config, 67 struct i2c_adapter *i2c) 68 { 69 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 70 return NULL; 71 } 72 #endif 73 74 #endif /* TS2020_H */ 75