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/dvb/frontend.h> 26 27 struct ts2020_config { 28 u8 tuner_address; 29 u32 frequency_div; 30 31 /* 32 * RF loop-through 33 */ 34 bool loop_through:1; 35 36 /* 37 * clock output 38 */ 39 #define TS2020_CLK_OUT_DISABLED 0 40 #define TS2020_CLK_OUT_ENABLED 1 41 #define TS2020_CLK_OUT_ENABLED_XTALOUT 2 42 u8 clk_out:2; 43 44 /* 45 * clock output divider 46 * 1 - 31 47 */ 48 u8 clk_out_div:5; 49 50 /* Set to true to suppress stat polling */ 51 bool dont_poll:1; 52 53 /* 54 * pointer to DVB frontend 55 */ 56 struct dvb_frontend *fe; 57 58 /* 59 * driver private, do not set value 60 */ 61 u8 attach_in_use:1; 62 63 /* Operation to be called by the ts2020 driver to get the value of the 64 * AGC PWM tuner input as theoretically output by the demodulator. 65 */ 66 int (*get_agc_pwm)(struct dvb_frontend *fe, u8 *_agc_pwm); 67 }; 68 69 /* Do not add new ts2020_attach() users! Use I2C bindings instead. */ 70 #if IS_REACHABLE(CONFIG_DVB_TS2020) 71 extern struct dvb_frontend *ts2020_attach( 72 struct dvb_frontend *fe, 73 const struct ts2020_config *config, 74 struct i2c_adapter *i2c); 75 #else 76 static inline struct dvb_frontend *ts2020_attach( 77 struct dvb_frontend *fe, 78 const struct ts2020_config *config, 79 struct i2c_adapter *i2c) 80 { 81 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 82 return NULL; 83 } 84 #endif 85 86 #endif /* TS2020_H */ 87