tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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 */
59extern 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
62static 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