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  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
23  *
24  *
25  * the project's page is at http://www.linuxtv.org
26  */
27 
28 #ifndef _ISL6405_H
29 #define _ISL6405_H
30 
31 #include <linux/dvb/frontend.h>
32 
33 /* system register bits */
34 
35 /* this bit selects register (control) 1 or 2
36    note that the bit maps are different */
37 
38 #define ISL6405_SR	0x80
39 
40 /* SR = 0 */
41 #define ISL6405_OLF1	0x01
42 #define ISL6405_EN1	0x02
43 #define ISL6405_VSEL1	0x04
44 #define ISL6405_LLC1	0x08
45 #define ISL6405_ENT1	0x10
46 #define ISL6405_ISEL1	0x20
47 #define ISL6405_DCL	0x40
48 
49 /* SR = 1 */
50 #define ISL6405_OLF2	0x01
51 #define ISL6405_OTF	0x02
52 #define ISL6405_EN2	0x04
53 #define ISL6405_VSEL2	0x08
54 #define ISL6405_LLC2	0x10
55 #define ISL6405_ENT2	0x20
56 #define ISL6405_ISEL2	0x40
57 
58 #if IS_REACHABLE(CONFIG_DVB_ISL6405)
59 /* override_set and override_clear control which system register bits (above)
60  * to always set & clear
61  */
62 extern struct dvb_frontend *isl6405_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c,
63 					   u8 i2c_addr, u8 override_set, u8 override_clear);
64 #else
65 static inline struct dvb_frontend *isl6405_attach(struct dvb_frontend *fe,
66 						  struct i2c_adapter *i2c, u8 i2c_addr,
67 						  u8 override_set, u8 override_clear)
68 {
69 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
70 	return NULL;
71 }
72 #endif /* CONFIG_DVB_ISL6405 */
73 
74 #endif
75