projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 04ad28c9 IL |
1 | #ifndef SI21XX_H |
| 2 | #define SI21XX_H | |
| 3 | ||
| 4 | #include <linux/dvb/frontend.h> | |
| 5 | #include "dvb_frontend.h" | |
| 6 | ||
| 7 | struct si21xx_config { | |
| 8 | /* the demodulator's i2c address */ | |
| 9 | u8 demod_address; | |
| 10 | ||
| 11 | /* minimum delay before retuning */ | |
| 12 | int min_delay_ms; | |
| 13 | }; | |
| 14 | ||
| 9b174527 | 15 | #if IS_REACHABLE(CONFIG_DVB_SI21XX) |
| 04ad28c9 IL |
16 | extern struct dvb_frontend *si21xx_attach(const struct si21xx_config *config, |
| 17 | struct i2c_adapter *i2c); | |
| 18 | #else | |
| 19 | static inline struct dvb_frontend *si21xx_attach( | |
| 20 | const struct si21xx_config *config, struct i2c_adapter *i2c) | |
| 21 | { | |
| 22 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | |
| 23 | return NULL; | |
| 24 | } | |
| 25 | #endif | |
| 26 | ||
| 27 | static inline int si21xx_writeregister(struct dvb_frontend *fe, u8 reg, u8 val) | |
| 28 | { | |
| 29 | int r = 0; | |
| 30 | u8 buf[] = {reg, val}; | |
| 31 | if (fe->ops.write) | |
| 32 | r = fe->ops.write(fe, buf, 2); | |
| 33 | return r; | |
| 34 | } | |
| 35 | ||
| 36 | #endif |