1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * lnbp21.h - driver for lnb supply and control ic lnbp21
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2006 Oliver Endriss
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * the project's page is at https://linuxtv.org
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #ifndef _LNBP21_H
11*4882a593Smuzhiyun #define _LNBP21_H
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun /* system register bits */
14*4882a593Smuzhiyun /* [RO] 0=OK; 1=over current limit flag */
15*4882a593Smuzhiyun #define LNBP21_OLF 0x01
16*4882a593Smuzhiyun /* [RO] 0=OK; 1=over temperature flag (150 C) */
17*4882a593Smuzhiyun #define LNBP21_OTF 0x02
18*4882a593Smuzhiyun /* [RW] 0=disable LNB power, enable loopthrough
19*4882a593Smuzhiyun 1=enable LNB power, disable loopthrough */
20*4882a593Smuzhiyun #define LNBP21_EN 0x04
21*4882a593Smuzhiyun /* [RW] 0=low voltage (13/14V, vert pol)
22*4882a593Smuzhiyun 1=high voltage (18/19V,horiz pol) */
23*4882a593Smuzhiyun #define LNBP21_VSEL 0x08
24*4882a593Smuzhiyun /* [RW] increase LNB voltage by 1V:
25*4882a593Smuzhiyun 0=13/18V; 1=14/19V */
26*4882a593Smuzhiyun #define LNBP21_LLC 0x10
27*4882a593Smuzhiyun /* [RW] 0=tone controlled by DSQIN pin
28*4882a593Smuzhiyun 1=tone enable, disable DSQIN */
29*4882a593Smuzhiyun #define LNBP21_TEN 0x20
30*4882a593Smuzhiyun /* [RW] current limit select:
31*4882a593Smuzhiyun 0:Iout=500-650mA Isc=300mA
32*4882a593Smuzhiyun 1:Iout=400-550mA Isc=200mA */
33*4882a593Smuzhiyun #define LNBP21_ISEL 0x40
34*4882a593Smuzhiyun /* [RW] short-circuit protect:
35*4882a593Smuzhiyun 0=pulsed (dynamic) curr limiting
36*4882a593Smuzhiyun 1=static curr limiting */
37*4882a593Smuzhiyun #define LNBP21_PCL 0x80
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun #include <linux/dvb/frontend.h>
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun #if IS_REACHABLE(CONFIG_DVB_LNBP21)
42*4882a593Smuzhiyun /* override_set and override_clear control which
43*4882a593Smuzhiyun system register bits (above) to always set & clear */
44*4882a593Smuzhiyun extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
45*4882a593Smuzhiyun struct i2c_adapter *i2c, u8 override_set,
46*4882a593Smuzhiyun u8 override_clear);
47*4882a593Smuzhiyun #else
lnbp21_attach(struct dvb_frontend * fe,struct i2c_adapter * i2c,u8 override_set,u8 override_clear)48*4882a593Smuzhiyun static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
49*4882a593Smuzhiyun struct i2c_adapter *i2c, u8 override_set,
50*4882a593Smuzhiyun u8 override_clear)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
53*4882a593Smuzhiyun return NULL;
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun #endif
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun #endif
58