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 /**
30  * struct lgdt330x_config - contains lgdt330x configuration
31  *
32  * @demod_chip:		LG demodulator chip LGDT3302 or LGDT3303
33  * @serial_mpeg:	MPEG hardware interface - 0:parallel 1:serial
34  * @pll_rf_set:		Callback function to set PLL interface
35  * @set_ts_params:	Callback function to set device param for start_dma
36  * @clock_polarity_flip:
37  *	Flip the polarity of the mpeg data transfer clock using alternate
38  *	init data.
39  *	This option applies ONLY to LGDT3303 - 0:disabled (default) 1:enabled
40  * @get_dvb_frontend:
41  *	returns the frontend associated with this I2C client.
42  *	Filled by the driver.
43  */
44 struct lgdt330x_config
45 {
46 	lg_chip_type demod_chip;
47 	int serial_mpeg;
48 	int (*pll_rf_set) (struct dvb_frontend* fe, int index);
49 	int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
50 	int clock_polarity_flip;
51 
52 	struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
53 };
54 
55 #if IS_REACHABLE(CONFIG_DVB_LGDT330X)
56 struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config,
57 				     u8 demod_address,
58 				     struct i2c_adapter *i2c);
59 #else
60 static inline
61 struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config,
62 				     u8 demod_address,
63 				     struct i2c_adapter *i2c)
64 {
65 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
66 	return NULL;
67 }
68 #endif // CONFIG_DVB_LGDT330X
69 
70 #endif /* LGDT330X_H */
71