| /* |
| Driver for Silicon Labs SI2165 DVB-C/-T Demodulator |
| |
| Copyright (C) 2013-2014 Matthias Schwarzott <zzam@gentoo.org> |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| References: |
| http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2165-short.pdf |
| */ |
| |
| #ifndef _DVB_SI2165_H |
| #define _DVB_SI2165_H |
| |
| #include <linux/dvb/frontend.h> |
| |
| enum { |
| SI2165_MODE_OFF = 0x00, |
| SI2165_MODE_PLL_EXT = 0x20, |
| SI2165_MODE_PLL_XTAL = 0x21 |
| }; |
| |
| struct si2165_config { |
| /* i2c addr |
| * possible values: 0x64,0x65,0x66,0x67 */ |
| u8 i2c_addr; |
| |
| /* external clock or XTAL */ |
| u8 chip_mode; |
| |
| /* frequency of external clock or xtal in Hz |
| * possible values: 4000000, 16000000, 20000000, 240000000, 27000000 |
| */ |
| u32 ref_freq_Hz; |
| |
| /* invert the spectrum */ |
| bool inversion; |
| }; |
| |
| #if IS_ENABLED(CONFIG_DVB_SI2165) |
| struct dvb_frontend *si2165_attach( |
| const struct si2165_config *config, |
| struct i2c_adapter *i2c); |
| #else |
| static inline struct dvb_frontend *si2165_attach( |
| const struct si2165_config *config, |
| struct i2c_adapter *i2c) |
| { |
| pr_warn("%s: driver disabled by Kconfig\n", __func__); |
| return NULL; |
| } |
| #endif /* CONFIG_DVB_SI2165 */ |
| |
| #endif /* _DVB_SI2165_H */ |