1/* 2 * HDIC HD29L2 DMB-TH demodulator driver 3 * 4 * Copyright (C) 2011 Metropolia University of Applied Sciences, Electria R&D 5 * 6 * Author: Antti Palosaari <crope@iki.fi> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 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 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 */ 22 23#ifndef HD29L2_H 24#define HD29L2_H 25 26#include <linux/kconfig.h> 27#include <linux/dvb/frontend.h> 28 29struct hd29l2_config { 30 /* 31 * demodulator I2C address 32 */ 33 u8 i2c_addr; 34 35 /* 36 * tuner I2C address 37 * only needed when tuner is behind demod I2C-gate 38 */ 39 u8 tuner_i2c_addr; 40 41 /* 42 * TS settings 43 */ 44#define HD29L2_TS_SERIAL 0x00 45#define HD29L2_TS_PARALLEL 0x80 46#define HD29L2_TS_CLK_NORMAL 0x40 47#define HD29L2_TS_CLK_INVERTED 0x00 48#define HD29L2_TS_CLK_GATED 0x20 49#define HD29L2_TS_CLK_FREE 0x00 50 u8 ts_mode; 51}; 52 53 54#if IS_REACHABLE(CONFIG_DVB_HD29L2) 55extern struct dvb_frontend *hd29l2_attach(const struct hd29l2_config *config, 56 struct i2c_adapter *i2c); 57#else 58static inline struct dvb_frontend *hd29l2_attach( 59const struct hd29l2_config *config, struct i2c_adapter *i2c) 60{ 61 pr_warn("%s: driver disabled by Kconfig\n", __func__); 62 return NULL; 63} 64#endif 65 66#endif /* HD29L2_H */ 67