1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Support for LGDT3302 and LGDT3303 - VSB/QAM |
4 | * |
5 | * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> |
6 | */ |
7 | |
8 | #ifndef LGDT330X_H |
9 | #define LGDT330X_H |
10 | |
11 | #include <linux/dvb/frontend.h> |
12 | |
13 | typedef enum lg_chip_t { |
14 | UNDEFINED, |
15 | LGDT3302, |
16 | LGDT3303 |
17 | }lg_chip_type; |
18 | |
19 | /** |
20 | * struct lgdt330x_config - contains lgdt330x configuration |
21 | * |
22 | * @demod_chip: LG demodulator chip LGDT3302 or LGDT3303 |
23 | * @serial_mpeg: MPEG hardware interface - 0:parallel 1:serial |
24 | * @pll_rf_set: Callback function to set PLL interface |
25 | * @set_ts_params: Callback function to set device param for start_dma |
26 | * @clock_polarity_flip: |
27 | * Flip the polarity of the mpeg data transfer clock using alternate |
28 | * init data. |
29 | * This option applies ONLY to LGDT3303 - 0:disabled (default) 1:enabled |
30 | * @get_dvb_frontend: |
31 | * returns the frontend associated with this I2C client. |
32 | * Filled by the driver. |
33 | */ |
34 | struct lgdt330x_config |
35 | { |
36 | lg_chip_type demod_chip; |
37 | int serial_mpeg; |
38 | int (*pll_rf_set) (struct dvb_frontend* fe, int index); |
39 | int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); |
40 | int clock_polarity_flip; |
41 | |
42 | struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); |
43 | }; |
44 | |
45 | #if IS_REACHABLE(CONFIG_DVB_LGDT330X) |
46 | struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config, |
47 | u8 demod_address, |
48 | struct i2c_adapter *i2c); |
49 | #else |
50 | static inline |
51 | struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config, |
52 | u8 demod_address, |
53 | struct i2c_adapter *i2c) |
54 | { |
55 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
56 | return NULL; |
57 | } |
58 | #endif // CONFIG_DVB_LGDT330X |
59 | |
60 | #endif /* LGDT330X_H */ |
61 | |