| /* 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 |