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/*
* Infineon TUA 9001 silicon tuner driver
*
* Copyright (C) 2009 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef TUA9001_H
#define TUA9001_H
#include <linux/kconfig.h>
#include "dvb_frontend.h"
struct tua9001_config {
/*
* I2C address
*/
u8 i2c_addr;
};
/*
* TUA9001 I/O PINs:
*
* CEN - chip enable
* 0 = chip disabled (chip off)
* 1 = chip enabled (chip on)
*
* RESETN - chip reset
* 0 = reset disabled (chip reset off)
* 1 = reset enabled (chip reset on)
*
* RXEN - RX enable
* 0 = RX disabled (chip idle)
* 1 = RX enabled (chip tuned)
*/
#define TUA9001_CMD_CEN 0
#define TUA9001_CMD_RESETN 1
#define TUA9001_CMD_RXEN 2
#if IS_REACHABLE(CONFIG_MEDIA_TUNER_TUA9001)
extern struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c, struct tua9001_config *cfg);
#else
static inline struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c, struct tua9001_config *cfg)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif
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