blob: bdfdcc754cfbfe8d64e0962da014240f78cfb27b [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0-or-later */
* Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
* Copyright (c) 2007 Steven Toth <>
#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().
extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c,
struct xc4000_config *cfg);
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;