CooCenter-System-kernel/drivers/media/dvb-frontends/hd29l2.h

/*
 * HDIC HD29L2 DMB-TH demodulator driver
 *
 * Copyright (C) 2011 Metropolia University of Applied Sciences, Electria R&D
 *
 * Author: Antti Palosaari <crope@iki.fi>
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    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.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef HD29L2_H
#define HD29L2_H

#include <linux/kconfig.h>
#include <linux/dvb/frontend.h>

struct hd29l2_config {
	/*
	 * demodulator I2C address
	 */
	u8 i2c_addr;

	/*
	 * tuner I2C address
	 * only needed when tuner is behind demod I2C-gate
	 */
	u8 tuner_i2c_addr;

	/*
	 * TS settings
	 */
#define HD29L2_TS_SERIAL            0x00
#define HD29L2_TS_PARALLEL          0x80
#define HD29L2_TS_CLK_NORMAL        0x40
#define HD29L2_TS_CLK_INVERTED      0x00
#define HD29L2_TS_CLK_GATED         0x20
#define HD29L2_TS_CLK_FREE          0x00
	u8 ts_mode;
};


#if IS_REACHABLE(CONFIG_DVB_HD29L2)
extern struct dvb_frontend *hd29l2_attach(const struct hd29l2_config *config,
	struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *hd29l2_attach(
const struct hd29l2_config *config, struct i2c_adapter *i2c)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif

#endif /* HD29L2_H */