linux/drivers/media/dvb-frontends/mxl5xx.h

/*
 * Driver for the MaxLinear MxL5xx family of tuners/demods
 *
 * Copyright (C) 2014-2015 Ralph Metzler <rjkm@metzlerbros.de>
 *                         Marcus Metzler <mocm@metzlerbros.de>
 *                         developed for Digital Devices GmbH
 *
 * based on code:
 * Copyright (c) 2011-2013 MaxLinear, Inc. All rights reserved
 * which was released under GPL V2
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2, as published by the Free Software Foundation.
 *
 * 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 _MXL5XX_H_
#define _MXL5XX_H_

#include <linux/types.h>
#include <linux/i2c.h>

#include <media/dvb_frontend.h>

struct mxl5xx_cfg {
	u8   adr;
	u8   type;
	u32  cap;
	u32  clk;
	u32  ts_clk;

	u8  *fw;
	u32  fw_len;

	int (*fw_read)(void *priv, u8 *buf, u32 len);
	void *fw_priv;
};

#if IS_REACHABLE(CONFIG_DVB_MXL5XX)

extern struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
	struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
	int (**fn_set_input)(struct dvb_frontend *, int));

#else

static inline struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
	struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
	int (**fn_set_input)(struct dvb_frontend *, int))
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}

#endif /* CONFIG_DVB_MXL5XX */

#endif /* _MXL5XX_H_ */