| /* |
| * 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. |
| */ |
| |
| #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(CONFIG_MEDIA_TUNER_XC4000) |
| 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 |