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lnbp21.h
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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 /* system register bits */
31 /* [RO] 0=OK; 1=over current limit flag */
32 #define LNBP21_OLF 0x01
33 /* [RO] 0=OK; 1=over temperature flag (150 C) */
34 #define LNBP21_OTF 0x02
35 /* [RW] 0=disable LNB power, enable loopthrough
36  1=enable LNB power, disable loopthrough */
37 #define LNBP21_EN 0x04
38 /* [RW] 0=low voltage (13/14V, vert pol)
39  1=high voltage (18/19V,horiz pol) */
40 #define LNBP21_VSEL 0x08
41 /* [RW] increase LNB voltage by 1V:
42  0=13/18V; 1=14/19V */
43 #define LNBP21_LLC 0x10
44 /* [RW] 0=tone controlled by DSQIN pin
45  1=tone enable, disable DSQIN */
46 #define LNBP21_TEN 0x20
47 /* [RW] current limit select:
48  0:Iout=500-650mA Isc=300mA
49  1:Iout=400-550mA Isc=200mA */
50 #define LNBP21_ISEL 0x40
51 /* [RW] short-circuit protect:
52  0=pulsed (dynamic) curr limiting
53  1=static curr limiting */
54 #define LNBP21_PCL 0x80
55 
56 #include <linux/dvb/frontend.h>
57 
58 #if defined(CONFIG_DVB_LNBP21) || (defined(CONFIG_DVB_LNBP21_MODULE) \
59  && defined(MODULE))
60 /* override_set and override_clear control which
61  system register bits (above) to always set & clear */
62 extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
63  struct i2c_adapter *i2c, u8 override_set,
64  u8 override_clear);
65 #else
66 static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
67  struct i2c_adapter *i2c, u8 override_set,
68  u8 override_clear)
69 {
70  printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
71  return NULL;
72 }
73 #endif
74 
75 #endif