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 */ 17 18 #ifndef LGDT330X_H 19 #define LGDT330X_H 20 21 #include <linux/dvb/frontend.h> 22 23 typedef enum lg_chip_t { 24 UNDEFINED, 25 LGDT3302, 26 LGDT3303 27 }lg_chip_type; 28 29 struct lgdt330x_config 30 { 31 /* The demodulator's i2c address */ 32 u8 demod_address; 33 34 /* LG demodulator chip LGDT3302 or LGDT3303 */ 35 lg_chip_type demod_chip; 36 37 /* MPEG hardware interface - 0:parallel 1:serial */ 38 int serial_mpeg; 39 40 /* PLL interface */ 41 int (*pll_rf_set) (struct dvb_frontend* fe, int index); 42 43 /* Need to set device param for start_dma */ 44 int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); 45 46 /* Flip the polarity of the mpeg data transfer clock using alternate init data 47 * This option applies ONLY to LGDT3303 - 0:disabled (default) 1:enabled */ 48 int clock_polarity_flip; 49 }; 50 51 #if IS_REACHABLE(CONFIG_DVB_LGDT330X) 52 extern struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, 53 struct i2c_adapter* i2c); 54 #else 55 static inline struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, 56 struct i2c_adapter* i2c) 57 { 58 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 59 return NULL; 60 } 61 #endif // CONFIG_DVB_LGDT330X 62 63 #endif /* LGDT330X_H */ 64