diff options
Diffstat (limited to 'drivers/media/tuners/tda827x.h')
| -rw-r--r-- | drivers/media/tuners/tda827x.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/media/tuners/tda827x.h b/drivers/media/tuners/tda827x.h new file mode 100644 index 0000000000..d3c2f00ada --- /dev/null +++ b/drivers/media/tuners/tda827x.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + /* + DVB Driver for Philips tda827x / tda827xa Silicon tuners + + (c) 2005 Hartmut Hackmann + (c) 2007 Michael Krufky + + + */ + +#ifndef __DVB_TDA827X_H__ +#define __DVB_TDA827X_H__ + +#include <linux/i2c.h> +#include <media/dvb_frontend.h> +#include "tda8290.h" + +struct tda827x_config +{ + /* saa7134 - provided callbacks */ + int (*init) (struct dvb_frontend *fe); + int (*sleep) (struct dvb_frontend *fe); + + /* interface to tda829x driver */ + enum tda8290_lna config; + int switch_addr; + + void (*agcf)(struct dvb_frontend *fe); +}; + + +/** + * tda827x_attach() - Attach a tda827x tuner to the supplied frontend structure + * + * @fe: Frontend to attach to. + * @addr: i2c address of the tuner. + * @i2c: i2c adapter to use. + * @cfg: optional callback function pointers. + * @return FE pointer on success, NULL on failure. + */ +#if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA827X) +extern struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, int addr, + struct i2c_adapter *i2c, + struct tda827x_config *cfg); +#else +static inline struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, + int addr, + struct i2c_adapter *i2c, + struct tda827x_config *cfg) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif // CONFIG_MEDIA_TUNER_TDA827X + +#endif // __DVB_TDA827X_H__ |