1 /*
2 * isl6421.h - driver for lnb supply and control ic ISL6421
3 *
4 * Copyright (C) 2006 Andrew de Quincey
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 _ISL6421_H
29 #define _ISL6421_H
30
31 #include <linux/dvb/frontend.h>
32
33 /* system register bits */
34 #define ISL6421_OLF1 0x01
35 #define ISL6421_EN1 0x02
36 #define ISL6421_VSEL1 0x04
37 #define ISL6421_LLC1 0x08
38 #define ISL6421_ENT1 0x10
39 #define ISL6421_ISEL1 0x20
40 #define ISL6421_DCL 0x40
41
42 #if defined(CONFIG_DVB_ISL6421) || (defined(CONFIG_DVB_ISL6421_MODULE) && defined(MODULE))
43 /* override_set and override_clear control which system register bits (above) to always set & clear */
44 extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
45 u8 override_set, u8 override_clear);
46 #else
47 static inline struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
48 u8 override_set, u8 override_clear)
49 {
50 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
51 return NULL;
52 }
53 #endif // CONFIG_DVB_ISL6421
54
55 #endif
56
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