diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/dvb-frontends/si21xx.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/si21xx.h b/drivers/media/dvb-frontends/si21xx.h new file mode 100644 index 0000000000..12fa1d5798 --- /dev/null +++ b/drivers/media/dvb-frontends/si21xx.h @@ -0,0 +1,37 @@ +/* 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 |