/* * Driver for Xceive XC4000 "QAM/8VSB single chip tuner" * * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __XC4000_H__ #define __XC4000_H__ #include <linux/firmware.h> struct dvb_frontend; struct i2c_adapter; struct xc4000_config { u8 i2c_address; /* if non-zero, power management is enabled by default */ u8 default_pm; /* value to be written to XREG_AMPLITUDE in DVB-T mode (0: no write) */ u8 dvb_amplitude; /* if non-zero, register 0x0E is set to filter analog TV video output */ u8 set_smoothedcvbs; /* IF for DVB-T */ u32 if_khz; }; /* xc4000 callback command */ #define XC4000_TUNER_RESET 0 /* For each bridge framework, when it attaches either analog or digital, * it has to store a reference back to its _core equivalent structure, * so that it can service the hardware by steering gpio's etc. * Each bridge implementation is different so cast devptr accordingly. * The xc4000 driver cares not for this value, other than ensuring * it's passed back to a bridge during tuner_callback(). */ #if IS_REACHABLE([31mCONFIG_MEDIA_TUNER_XC4000[0m) extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct xc4000_config *cfg); #else static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct xc4000_config *cfg) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif #endif |