1 /* 2 * drxd.h: DRXD DVB-T demodulator driver 3 * 4 * Copyright (C) 2005-2007 Micronas 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 * version 2 only, as published by the Free Software Foundation. 9 * 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20 * 02110-1301, USA 21 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html 22 */ 23 24 #ifndef _DRXD_H_ 25 #define _DRXD_H_ 26 27 #include <linux/kconfig.h> 28 #include <linux/types.h> 29 #include <linux/i2c.h> 30 31 struct drxd_config { 32 u8 index; 33 34 u8 pll_address; 35 u8 pll_type; 36 #define DRXD_PLL_NONE 0 37 #define DRXD_PLL_DTT7520X 1 38 #define DRXD_PLL_MT3X0823 2 39 40 u32 clock; 41 u8 insert_rs_byte; 42 43 u8 demod_address; 44 u8 demoda_address; 45 u8 demod_revision; 46 47 /* If the tuner is not behind an i2c gate, be sure to flip this bit 48 or else the i2c bus could get wedged */ 49 u8 disable_i2c_gate_ctrl; 50 51 u32 IF; 52 s16(*osc_deviation) (void *priv, s16 dev, int flag); 53 }; 54 55 #if IS_REACHABLE(CONFIG_DVB_DRXD) 56 extern 57 struct dvb_frontend *drxd_attach(const struct drxd_config *config, 58 void *priv, struct i2c_adapter *i2c, 59 struct device *dev); 60 #else 61 static inline 62 struct dvb_frontend *drxd_attach(const struct drxd_config *config, 63 void *priv, struct i2c_adapter *i2c, 64 struct device *dev) 65 { 66 printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n", 67 __func__); 68 return NULL; 69 } 70 #endif 71 72 #endif 73