ix2505v.h
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/**
* Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner
*
* Copyright (C) 2010 Malcolm Priestley
*
* 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.
*
* 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 DVB_IX2505V_H
#define DVB_IX2505V_H
#include <linux/kconfig.h>
#include <linux/i2c.h>
#include "dvb_frontend.h"
/**
* Attach a ix2505v tuner to the supplied frontend structure.
*
* @param fe Frontend to attach to.
* @param config ix2505v_config structure
* @return FE pointer on success, NULL on failure.
*/
struct ix2505v_config {
u8 tuner_address;
/*Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB */
u8 tuner_gain;
/*Charge pump output +/- 0=120 1=260 2=555 3=1200(default) */
u8 tuner_chargepump;
/* delay after tune */
int min_delay_ms;
/* disables reads*/
u8 tuner_write_only;
};
#if IS_ENABLED(CONFIG_DVB_IX2505V)
extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
const struct ix2505v_config *config, struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
const struct ix2505v_config *config, struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif /* DVB_IX2505V_H */