1 /*
2  * isl6405.h - driver for dual lnb supply and control ic ISL6405
3  *
4  * Copyright (C) 2008 Hartmut Hackmann
5  * Copyright (C) 2006 Oliver Endriss
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * To obtain the license, point your browser to
19  * http://www.gnu.org/copyleft/gpl.html
20  *
21  *
22  * the project's page is at https://linuxtv.org
23  */
24 
25 #ifndef _ISL6405_H
26 #define _ISL6405_H
27 
28 #include <linux/dvb/frontend.h>
29 
30 /* system register bits */
31 
32 /* this bit selects register (control) 1 or 2
33    note that the bit maps are different */
34 
35 #define ISL6405_SR	0x80
36 
37 /* SR = 0 */
38 #define ISL6405_OLF1	0x01
39 #define ISL6405_EN1	0x02
40 #define ISL6405_VSEL1	0x04
41 #define ISL6405_LLC1	0x08
42 #define ISL6405_ENT1	0x10
43 #define ISL6405_ISEL1	0x20
44 #define ISL6405_DCL	0x40
45 
46 /* SR = 1 */
47 #define ISL6405_OLF2	0x01
48 #define ISL6405_OTF	0x02
49 #define ISL6405_EN2	0x04
50 #define ISL6405_VSEL2	0x08
51 #define ISL6405_LLC2	0x10
52 #define ISL6405_ENT2	0x20
53 #define ISL6405_ISEL2	0x40
54 
55 #if IS_REACHABLE(CONFIG_DVB_ISL6405)
56 /* override_set and override_clear control which system register bits (above)
57  * to always set & clear
58  */
59 extern struct dvb_frontend *isl6405_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c,
60 					   u8 i2c_addr, u8 override_set, u8 override_clear);
61 #else
62 static inline struct dvb_frontend *isl6405_attach(struct dvb_frontend *fe,
63 						  struct i2c_adapter *i2c, u8 i2c_addr,
64 						  u8 override_set, u8 override_clear)
65 {
66 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
67 	return NULL;
68 }
69 #endif /* CONFIG_DVB_ISL6405 */
70 
71 #endif
72