Commit | Line | Data |
---|---|---|
04ad28c9 IL |
1 | #ifndef SI21XX_H |
2 | #define SI21XX_H | |
3 | ||
782d8b74 | 4 | #include <linux/kconfig.h> |
04ad28c9 IL |
5 | #include <linux/dvb/frontend.h> |
6 | #include "dvb_frontend.h" | |
7 | ||
8 | struct si21xx_config { | |
9 | /* the demodulator's i2c address */ | |
10 | u8 demod_address; | |
11 | ||
12 | /* minimum delay before retuning */ | |
13 | int min_delay_ms; | |
14 | }; | |
15 | ||
782d8b74 | 16 | #if IS_ENABLED(CONFIG_DVB_SI21XX) |
04ad28c9 IL |
17 | extern struct dvb_frontend *si21xx_attach(const struct si21xx_config *config, |
18 | struct i2c_adapter *i2c); | |
19 | #else | |
20 | static inline struct dvb_frontend *si21xx_attach( | |
21 | const struct si21xx_config *config, struct i2c_adapter *i2c) | |
22 | { | |
23 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | |
24 | return NULL; | |
25 | } | |
26 | #endif | |
27 | ||
28 | static inline int si21xx_writeregister(struct dvb_frontend *fe, u8 reg, u8 val) | |
29 | { | |
30 | int r = 0; | |
31 | u8 buf[] = {reg, val}; | |
32 | if (fe->ops.write) | |
33 | r = fe->ops.write(fe, buf, 2); | |
34 | return r; | |
35 | } | |
36 | ||
37 | #endif |