1 /* 2 * Driver for Xceive XC5000 "QAM/8VSB single chip tuner" 3 * 4 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> 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 * 15 * GNU General Public License for more details. 16 */ 17 18 #ifndef __XC5000_H__ 19 #define __XC5000_H__ 20 21 #include <linux/firmware.h> 22 23 struct dvb_frontend; 24 struct i2c_adapter; 25 26 #define XC5000A 1 27 #define XC5000C 2 28 29 struct xc5000_config { 30 u8 i2c_address; 31 u32 if_khz; 32 u8 radio_input; 33 u16 xtal_khz; 34 u16 output_amp; 35 36 int chip_id; 37 }; 38 39 /* xc5000 callback command */ 40 #define XC5000_TUNER_RESET 0 41 42 /* Possible Radio inputs */ 43 #define XC5000_RADIO_NOT_CONFIGURED 0 44 #define XC5000_RADIO_FM1 1 45 #define XC5000_RADIO_FM2 2 46 #define XC5000_RADIO_FM1_MONO 3 47 48 /* For each bridge framework, when it attaches either analog or digital, 49 * it has to store a reference back to its _core equivalent structure, 50 * so that it can service the hardware by steering gpio's etc. 51 * Each bridge implementation is different so cast devptr accordingly. 52 * The xc5000 driver cares not for this value, other than ensuring 53 * it's passed back to a bridge during tuner_callback(). 54 */ 55 56 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC5000) 57 extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, 58 struct i2c_adapter *i2c, 59 const struct xc5000_config *cfg); 60 #else 61 static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, 62 struct i2c_adapter *i2c, 63 const struct xc5000_config *cfg) 64 { 65 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 66 return NULL; 67 } 68 #endif 69 70 #endif 71