ves1820.h

来自「V4l driver for DVB HD」· C头文件 代码 · 共 52 行

/*
    VES1820  - Single Chip Cable Channel Receiver driver module

    Copyright (C) 1999 Convergence Integrated Media GmbH <[e-mail]>

    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 VES1820_H
#define VES1820_H

#include <linux/dvb/frontend.h>

#define VES1820_SELAGC_PWM 0
#define VES1820_SELAGC_SIGNAMPERR 1

struct ves1820_config
{
	/* the demodulator's i2c address */
	u8 demod_address;

	/* value of XIN to use */
	u32 xin;

	/* does inversion need inverted? */
	u8 invert:1;

	/* SELAGC control */
	u8 selagc:1;

	/* PLL maintenance */
	int (*pll_init)(struct dvb_frontend* fe);
	int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
};

extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
					   struct i2c_adapter* i2c, u8 pwm);

#endif // VES1820_H