1 /* 2 Montage Technology TS2020 - Silicon Tuner driver 3 Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com> 4 5 Copyright (C) 2009-2012 TurboSight.com 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22 #ifndef TS2020_H 23 #define TS2020_H 24 25 #include <linux/kconfig.h> 26 #include <linux/dvb/frontend.h> 27 28 struct ts2020_config { 29 u8 tuner_address; 30 u32 frequency_div; 31 32 /* 33 * RF loop-through 34 */ 35 bool loop_through:1; 36 37 /* 38 * clock output 39 */ 40 #define TS2020_CLK_OUT_DISABLED 0 41 #define TS2020_CLK_OUT_ENABLED 1 42 #define TS2020_CLK_OUT_ENABLED_XTALOUT 2 43 u8 clk_out:2; 44 45 /* 46 * clock output divider 47 * 1 - 31 48 */ 49 u8 clk_out_div:5; 50 51 /* 52 * pointer to DVB frontend 53 */ 54 struct dvb_frontend *fe; 55 56 /* 57 * driver private, do not set value 58 */ 59 u8 attach_in_use:1; 60 61 /* Operation to be called by the ts2020 driver to get the value of the 62 * AGC PWM tuner input as theoretically output by the demodulator. 63 */ 64 int (*get_agc_pwm)(struct dvb_frontend *fe, u8 *_agc_pwm); 65 }; 66 67 /* Do not add new ts2020_attach() users! Use I2C bindings instead. */ 68 #if IS_REACHABLE(CONFIG_DVB_TS2020) 69 extern struct dvb_frontend *ts2020_attach( 70 struct dvb_frontend *fe, 71 const struct ts2020_config *config, 72 struct i2c_adapter *i2c); 73 #else 74 static inline struct dvb_frontend *ts2020_attach( 75 struct dvb_frontend *fe, 76 const struct ts2020_config *config, 77 struct i2c_adapter *i2c) 78 { 79 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 80 return NULL; 81 } 82 #endif 83 84 #endif /* TS2020_H */ 85