| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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 | * To obtain the license, point your browser to |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * |
| 21 | * the project's page is at https://linuxtv.org |
| 22 | */ |
| 23 | |
| 24 | #ifndef _LNBP21_H |
| 25 | #define _LNBP21_H |
| 26 | |
| 27 | /* system register bits */ |
| 28 | /* [RO] 0=OK; 1=over current limit flag */ |
| 29 | #define LNBP21_OLF 0x01 |
| 30 | /* [RO] 0=OK; 1=over temperature flag (150 C) */ |
| 31 | #define LNBP21_OTF 0x02 |
| 32 | /* [RW] 0=disable LNB power, enable loopthrough |
| 33 | 1=enable LNB power, disable loopthrough */ |
| 34 | #define LNBP21_EN 0x04 |
| 35 | /* [RW] 0=low voltage (13/14V, vert pol) |
| 36 | 1=high voltage (18/19V,horiz pol) */ |
| 37 | #define LNBP21_VSEL 0x08 |
| 38 | /* [RW] increase LNB voltage by 1V: |
| 39 | 0=13/18V; 1=14/19V */ |
| 40 | #define LNBP21_LLC 0x10 |
| 41 | /* [RW] 0=tone controlled by DSQIN pin |
| 42 | 1=tone enable, disable DSQIN */ |
| 43 | #define LNBP21_TEN 0x20 |
| 44 | /* [RW] current limit select: |
| 45 | 0:Iout=500-650mA Isc=300mA |
| 46 | 1:Iout=400-550mA Isc=200mA */ |
| 47 | #define LNBP21_ISEL 0x40 |
| 48 | /* [RW] short-circuit protect: |
| 49 | 0=pulsed (dynamic) curr limiting |
| 50 | 1=static curr limiting */ |
| 51 | #define LNBP21_PCL 0x80 |
| 52 | |
| 53 | #include <linux/dvb/frontend.h> |
| 54 | |
| 55 | #if IS_REACHABLE(CONFIG_DVB_LNBP21) |
| 56 | /* override_set and override_clear control which |
| 57 | system register bits (above) to always set & clear */ |
| 58 | extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, |
| 59 | struct i2c_adapter *i2c, u8 override_set, |
| 60 | u8 override_clear); |
| 61 | #else |
| 62 | static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, |
| 63 | struct i2c_adapter *i2c, u8 override_set, |
| 64 | u8 override_clear) |
| 65 | { |
| 66 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
| 67 | return NULL; |
| 68 | } |
| 69 | #endif |
| 70 | |
| 71 | #endif |