1/*
2 * lnbp21.h - driver for lnb supply and control ic lnbp21
3 *
4 * Copyright (C) 2006 Oliver Endriss
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
22 *
23 *
24 * the project's page is at http://www.linuxtv.org
25 */
26
27#ifndef _LNBP21_H
28#define _LNBP21_H
29
30#include <linux/kconfig.h>
31
32/* system register bits */
33/* [RO] 0=OK; 1=over current limit flag */
34#define LNBP21_OLF	0x01
35/* [RO] 0=OK; 1=over temperature flag (150 C) */
36#define LNBP21_OTF	0x02
37/* [RW] 0=disable LNB power, enable loopthrough
38	1=enable LNB power, disable loopthrough */
39#define LNBP21_EN	0x04
40/* [RW] 0=low voltage (13/14V, vert pol)
41	1=high voltage (18/19V,horiz pol) */
42#define LNBP21_VSEL	0x08
43/* [RW] increase LNB voltage by 1V:
44	0=13/18V; 1=14/19V */
45#define LNBP21_LLC	0x10
46/* [RW] 0=tone controlled by DSQIN pin
47	1=tone enable, disable DSQIN */
48#define LNBP21_TEN	0x20
49/* [RW] current limit select:
50	0:Iout=500-650mA Isc=300mA
51	1:Iout=400-550mA Isc=200mA */
52#define LNBP21_ISEL	0x40
53/* [RW] short-circuit protect:
54	0=pulsed (dynamic) curr limiting
55	1=static curr limiting */
56#define LNBP21_PCL	0x80
57
58#include <linux/dvb/frontend.h>
59
60#if IS_ENABLED(CONFIG_DVB_LNBP21)
61/* override_set and override_clear control which
62 system register bits (above) to always set & clear */
63extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
64				struct i2c_adapter *i2c, u8 override_set,
65				u8 override_clear);
66#else
67static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
68				struct i2c_adapter *i2c, u8 override_set,
69				u8 override_clear)
70{
71	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
72	return NULL;
73}
74#endif
75
76#endif
77