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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* ascot2e.h
*
* Sony Ascot3E DVB-T/T2/C/C2 tuner driver
*
* Copyright 2012 Sony Corporation
* Copyright (C) 2014 NetUP Inc.
* Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
* Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
*/
#ifndef __DVB_ASCOT2E_H__
#define __DVB_ASCOT2E_H__
#include <linux/dvb/frontend.h>
#include <linux/i2c.h>
/**
* struct ascot2e_config - the configuration of Ascot2E tuner driver
* @i2c_address: I2C address of the tuner
* @xtal_freq_mhz: Oscillator frequency, MHz
* @set_tuner_priv: Callback function private context
* @set_tuner_callback: Callback function that notifies the parent driver
* which tuner is active now
*/
struct ascot2e_config {
u8 i2c_address;
u8 xtal_freq_mhz;
void *set_tuner_priv;
int (*set_tuner_callback)(void *, int);
};
#if IS_REACHABLE(CONFIG_DVB_ASCOT2E)
/**
* Attach an ascot2e tuner
*
* @fe: frontend to be attached
* @config: pointer to &struct ascot2e_config with tuner configuration.
* @i2c: i2c adapter to use.
*
* return: FE pointer on success, NULL on failure.
*/
extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
const struct ascot2e_config *config,
struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
const struct ascot2e_config *config,
struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif
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