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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef SI21XX_H
#define SI21XX_H
#include <linux/dvb/frontend.h>
#include <media/dvb_frontend.h>
struct si21xx_config {
/* the demodulator's i2c address */
u8 demod_address;
/* minimum delay before retuning */
int min_delay_ms;
};
#if IS_REACHABLE(CONFIG_DVB_SI21XX)
extern struct dvb_frontend *si21xx_attach(const struct si21xx_config *config,
struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *si21xx_attach(
const struct si21xx_config *config, struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
static inline int si21xx_writeregister(struct dvb_frontend *fe, u8 reg, u8 val)
{
int r = 0;
u8 buf[] = {reg, val};
if (fe->ops.write)
r = fe->ops.write(fe, buf, 2);
return r;
}
#endif
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