linux/drivers/media/dvb-frontends/lnbh24.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * lnbh24.h - driver for lnb supply and control ic lnbh24
 *
 * Copyright (C) 2009 NetUP Inc.
 * Copyright (C) 2009 Igor M. Liplianin <[email protected]>
 */

#ifndef _LNBH24_H
#define _LNBH24_H

/* system register bits */
#define LNBH24_OLF …
#define LNBH24_OTF …
#define LNBH24_EN …
#define LNBH24_VSEL …
#define LNBH24_LLC …
#define LNBH24_TEN …
#define LNBH24_TTX …
#define LNBH24_PCL …

#include <linux/dvb/frontend.h>

#if IS_REACHABLE(CONFIG_DVB_LNBP21)
/* override_set and override_clear control which
   system register bits (above) to always set & clear */
extern struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
				struct i2c_adapter *i2c, u8 override_set,
				u8 override_clear, u8 i2c_addr);
#else
static inline struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
				struct i2c_adapter *i2c, u8 override_set,
				u8 override_clear, u8 i2c_addr)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif

#endif