1 /* 2 * Infineon TUA 9001 silicon tuner driver 3 * 4 * Copyright (C) 2009 Antti Palosaari <crope@iki.fi> 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 TUA9001_H 22 #define TUA9001_H 23 24 #include <linux/kconfig.h> 25 #include "dvb_frontend.h" 26 27 struct tua9001_config { 28 /* 29 * I2C address 30 */ 31 u8 i2c_addr; 32 }; 33 34 /* 35 * TUA9001 I/O PINs: 36 * 37 * CEN - chip enable 38 * 0 = chip disabled (chip off) 39 * 1 = chip enabled (chip on) 40 * 41 * RESETN - chip reset 42 * 0 = reset disabled (chip reset off) 43 * 1 = reset enabled (chip reset on) 44 * 45 * RXEN - RX enable 46 * 0 = RX disabled (chip idle) 47 * 1 = RX enabled (chip tuned) 48 */ 49 50 #define TUA9001_CMD_CEN 0 51 #define TUA9001_CMD_RESETN 1 52 #define TUA9001_CMD_RXEN 2 53 54 #if IS_ENABLED(CONFIG_MEDIA_TUNER_TUA9001) 55 extern struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, 56 struct i2c_adapter *i2c, struct tua9001_config *cfg); 57 #else 58 static inline struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, 59 struct i2c_adapter *i2c, struct tua9001_config *cfg) 60 { 61 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 62 return NULL; 63 } 64 #endif 65 66 #endif 67