1 /* 2 * Support for LGDT3302 and LGDT3303 - VSB/QAM 3 * 4 * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> 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 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 * 20 */ 21 22 #ifndef LGDT330X_H 23 #define LGDT330X_H 24 25 #include <linux/dvb/frontend.h> 26 27 typedef enum lg_chip_t { 28 UNDEFINED, 29 LGDT3302, 30 LGDT3303 31 }lg_chip_type; 32 33 struct lgdt330x_config 34 { 35 /* The demodulator's i2c address */ 36 u8 demod_address; 37 38 /* LG demodulator chip LGDT3302 or LGDT3303 */ 39 lg_chip_type demod_chip; 40 41 /* MPEG hardware interface - 0:parallel 1:serial */ 42 int serial_mpeg; 43 44 /* PLL interface */ 45 int (*pll_rf_set) (struct dvb_frontend* fe, int index); 46 47 /* Need to set device param for start_dma */ 48 int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); 49 50 /* Flip the polarity of the mpeg data transfer clock using alternate init data 51 * This option applies ONLY to LGDT3303 - 0:disabled (default) 1:enabled */ 52 int clock_polarity_flip; 53 }; 54 55 #if IS_ENABLED(CONFIG_DVB_LGDT330X) 56 extern struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, 57 struct i2c_adapter* i2c); 58 #else 59 static inline struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, 60 struct i2c_adapter* i2c) 61 { 62 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 63 return NULL; 64 } 65 #endif // CONFIG_DVB_LGDT330X 66 67 #endif /* LGDT330X_H */ 68