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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Support for LGDT3302 and LGDT3303 - VSB/QAM
*
* Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net>
*/
#ifndef LGDT330X_H
#define LGDT330X_H
#include <linux/dvb/frontend.h>
typedef enum lg_chip_t {
UNDEFINED,
LGDT3302,
LGDT3303
}lg_chip_type;
/**
* struct lgdt330x_config - contains lgdt330x configuration
*
* @demod_chip: LG demodulator chip LGDT3302 or LGDT3303
* @serial_mpeg: MPEG hardware interface - 0:parallel 1:serial
* @pll_rf_set: Callback function to set PLL interface
* @set_ts_params: Callback function to set device param for start_dma
* @clock_polarity_flip:
* Flip the polarity of the mpeg data transfer clock using alternate
* init data.
* This option applies ONLY to LGDT3303 - 0:disabled (default) 1:enabled
* @get_dvb_frontend:
* returns the frontend associated with this I2C client.
* Filled by the driver.
*/
struct lgdt330x_config
{
lg_chip_type demod_chip;
int serial_mpeg;
int (*pll_rf_set) (struct dvb_frontend* fe, int index);
int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
int clock_polarity_flip;
struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
};
#if IS_REACHABLE(CONFIG_DVB_LGDT330X)
struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config,
u8 demod_address,
struct i2c_adapter *i2c);
#else
static inline
struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config,
u8 demod_address,
struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif // CONFIG_DVB_LGDT330X
#endif /* LGDT330X_H */
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