1 /* 2 * Realtek RTL2832 DVB-T demodulator driver 3 * 4 * Copyright (C) 2012 Thomas Mair <thomas.mair86@gmail.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19 */ 20 21 #ifndef RTL2832_H 22 #define RTL2832_H 23 24 #include <linux/kconfig.h> 25 #include <linux/dvb/frontend.h> 26 27 struct rtl2832_config { 28 /* 29 * Demodulator I2C address. 30 */ 31 u8 i2c_addr; 32 33 /* 34 * Xtal frequency. 35 * Hz 36 * 4000000, 16000000, 25000000, 28800000 37 */ 38 u32 xtal; 39 40 /* 41 * tuner 42 * XXX: This must be keep sync with dvb_usb_rtl28xxu demod driver. 43 */ 44 #define RTL2832_TUNER_TUA9001 0x24 45 #define RTL2832_TUNER_FC0012 0x26 46 #define RTL2832_TUNER_E4000 0x27 47 #define RTL2832_TUNER_FC0013 0x29 48 #define RTL2832_TUNER_R820T 0x2a 49 #define RTL2832_TUNER_R828D 0x2b 50 u8 tuner; 51 }; 52 53 #if IS_ENABLED(CONFIG_DVB_RTL2832) 54 struct dvb_frontend *rtl2832_attach( 55 const struct rtl2832_config *cfg, 56 struct i2c_adapter *i2c 57 ); 58 59 extern struct i2c_adapter *rtl2832_get_i2c_adapter( 60 struct dvb_frontend *fe 61 ); 62 63 extern struct i2c_adapter *rtl2832_get_private_i2c_adapter( 64 struct dvb_frontend *fe 65 ); 66 67 #else 68 69 static inline struct dvb_frontend *rtl2832_attach( 70 const struct rtl2832_config *config, 71 struct i2c_adapter *i2c 72 ) 73 { 74 pr_warn("%s: driver disabled by Kconfig\n", __func__); 75 return NULL; 76 } 77 78 static inline struct i2c_adapter *rtl2832_get_i2c_adapter( 79 struct dvb_frontend *fe 80 ) 81 { 82 return NULL; 83 } 84 85 static inline struct i2c_adapter *rtl2832_get_private_i2c_adapter( 86 struct dvb_frontend *fe 87 ) 88 { 89 return NULL; 90 } 91 92 #endif 93 94 95 #endif /* RTL2832_H */ 96