dvb2dvb/dvbmod.h at master · linuxstb/dvb2dvb · GitHub

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/**
 *
 * dvbmod.h - DVB modulator kernel API
 *
 * Copyright (C) 2013 Dave Chapman <dave@dchapman.com>
 *
 */

#ifndef _DVBMOD_H_
#define _DVBMOD_H_

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

/**
 * Modulator API structs
 */

struct dvb_modulator_parameters {
	__u32			frequency_khz;   /* frequency in KHz */
	fe_transmit_mode_t	transmission_mode;
	fe_modulation_t		constellation;
	fe_guard_interval_t	guard_interval;
	fe_code_rate_t 		code_rate_HP;
	__u16			bandwidth_hz;    /* Bandwidth in Hz */
	__u16			cell_id;
};

struct dvb_modulator_gain_range {
	__u32			frequency_khz;   /* frequency in KHz */
	int			min_gain;
	int			max_gain;
};

/**
 * Modulator API commands
 */

#define DVBMOD_SET_PARAMETERS    _IOW('k', 0x40, struct dvb_modulator_parameters)
#define DVBMOD_SET_RF_GAIN       _IOWR('k', 0x41, int)
#define DVBMOD_GET_RF_GAIN       _IOR('k', 0x42, int)
#define DVBMOD_GET_RF_GAIN_RANGE _IOWR('k', 0x43, struct dvb_modulator_gain_range)

#endif