1 /* 2 * mxl111sf-demod.h - driver for the MaxLinear MXL111SF DVB-T demodulator 3 * 4 * Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 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 #ifndef __MXL111SF_DEMOD_H__ 18 #define __MXL111SF_DEMOD_H__ 19 20 #include <media/dvb_frontend.h> 21 #include "mxl111sf.h" 22 23 struct mxl111sf_demod_config { 24 int (*read_reg)(struct mxl111sf_state *state, u8 addr, u8 *data); 25 int (*write_reg)(struct mxl111sf_state *state, u8 addr, u8 data); 26 int (*program_regs)(struct mxl111sf_state *state, 27 struct mxl111sf_reg_ctrl_info *ctrl_reg_info); 28 }; 29 30 #if IS_ENABLED(CONFIG_DVB_USB_MXL111SF) 31 extern 32 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state, 33 const struct mxl111sf_demod_config *cfg); 34 #else 35 static inline 36 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state, 37 const struct mxl111sf_demod_config *cfg) 38 { 39 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 40 return NULL; 41 } 42 #endif /* CONFIG_DVB_USB_MXL111SF */ 43 44 #endif /* __MXL111SF_DEMOD_H__ */ 45