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/*
Montage Technology TS2020 - Silicon Tuner driver
Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
Copyright (C) 2009-2012 TurboSight.com
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 TS2020_H
#define TS2020_H
#include <linux/dvb/frontend.h>
struct ts2020_config {
u8 tuner_address;
u32 frequency_div;
/*
* RF loop-through
*/
bool loop_through:1;
/*
* clock output
*/
#define TS2020_CLK_OUT_DISABLED 0
#define TS2020_CLK_OUT_ENABLED 1
#define TS2020_CLK_OUT_ENABLED_XTALOUT 2
u8 clk_out:2;
/*
* clock output divider
* 1 - 31
*/
u8 clk_out_div:5;
/* Set to true to suppress stat polling */
bool dont_poll:1;
/*
* pointer to DVB frontend
*/
struct dvb_frontend *fe;
/*
* driver private, do not set value
*/
u8 attach_in_use:1;
/* Operation to be called by the ts2020 driver to get the value of the
* AGC PWM tuner input as theoretically output by the demodulator.
*/
int (*get_agc_pwm)(struct dvb_frontend *fe, u8 *_agc_pwm);
};
/* Do not add new ts2020_attach() users! Use I2C bindings instead. */
#if IS_REACHABLE(CONFIG_DVB_TS2020)
extern struct dvb_frontend *ts2020_attach(
struct dvb_frontend *fe,
const struct ts2020_config *config,
struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *ts2020_attach(
struct dvb_frontend *fe,
const struct ts2020_config *config,
struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif /* TS2020_H */
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