| /* SPDX-License-Identifier: GPL-2.0-or-later */ | |
| /* | |
| * Driver for Xceive XC4000 "QAM/8VSB single chip tuner" | |
| * | |
| * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> | |
| */ | |
| #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 |