diff options
Diffstat (limited to 'drivers/media/dvb-frontends/lnbp21.h')
| -rw-r--r-- | drivers/media/dvb-frontends/lnbp21.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/lnbp21.h b/drivers/media/dvb-frontends/lnbp21.h new file mode 100644 index 000000000..f17cf2b73 --- /dev/null +++ b/drivers/media/dvb-frontends/lnbp21.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * lnbp21.h - driver for lnb supply and control ic lnbp21 + * + * Copyright (C) 2006 Oliver Endriss + * + * the project's page is at https://linuxtv.org + */ + +#ifndef _LNBP21_H +#define _LNBP21_H + +/* system register bits */ +/* [RO] 0=OK; 1=over current limit flag */ +#define LNBP21_OLF 0x01 +/* [RO] 0=OK; 1=over temperature flag (150 C) */ +#define LNBP21_OTF 0x02 +/* [RW] 0=disable LNB power, enable loopthrough + 1=enable LNB power, disable loopthrough */ +#define LNBP21_EN 0x04 +/* [RW] 0=low voltage (13/14V, vert pol) + 1=high voltage (18/19V,horiz pol) */ +#define LNBP21_VSEL 0x08 +/* [RW] increase LNB voltage by 1V: + 0=13/18V; 1=14/19V */ +#define LNBP21_LLC 0x10 +/* [RW] 0=tone controlled by DSQIN pin + 1=tone enable, disable DSQIN */ +#define LNBP21_TEN 0x20 +/* [RW] current limit select: + 0:Iout=500-650mA Isc=300mA + 1:Iout=400-550mA Isc=200mA */ +#define LNBP21_ISEL 0x40 +/* [RW] short-circuit protect: + 0=pulsed (dynamic) curr limiting + 1=static curr limiting */ +#define LNBP21_PCL 0x80 + +#include <linux/dvb/frontend.h> + +#if IS_REACHABLE(CONFIG_DVB_LNBP21) +/* override_set and override_clear control which + system register bits (above) to always set & clear */ +extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, u8 override_set, + u8 override_clear); +#else +static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, u8 override_set, + u8 override_clear) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif |