1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator |
4 | * ATBM8830, ATBM8831 |
5 | * |
6 | * Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com> |
7 | */ |
8 | |
9 | #ifndef __ATBM8830_H__ |
10 | #define __ATBM8830_H__ |
11 | |
12 | #include <linux/dvb/frontend.h> |
13 | #include <linux/i2c.h> |
14 | |
15 | #define ATBM8830_PROD_8830 0 |
16 | #define ATBM8830_PROD_8831 1 |
17 | |
18 | struct atbm8830_config { |
19 | |
20 | /* product type */ |
21 | u8 prod; |
22 | |
23 | /* the demodulator's i2c address */ |
24 | u8 demod_address; |
25 | |
26 | /* parallel or serial transport stream */ |
27 | u8 serial_ts; |
28 | |
29 | /* transport stream clock output only when receiving valid stream */ |
30 | u8 ts_clk_gated; |
31 | |
32 | /* Decoder sample TS data at rising edge of clock */ |
33 | u8 ts_sampling_edge; |
34 | |
35 | /* Oscillator clock frequency */ |
36 | u32 osc_clk_freq; /* in kHz */ |
37 | |
38 | /* IF frequency */ |
39 | u32 if_freq; /* in kHz */ |
40 | |
41 | /* Swap I/Q for zero IF */ |
42 | u8 zif_swap_iq; |
43 | |
44 | /* Tuner AGC settings */ |
45 | u8 agc_min; |
46 | u8 agc_max; |
47 | u8 agc_hold_loop; |
48 | }; |
49 | |
50 | #if IS_REACHABLE(CONFIG_DVB_ATBM8830) |
51 | extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config, |
52 | struct i2c_adapter *i2c); |
53 | #else |
54 | static inline |
55 | struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config, |
56 | struct i2c_adapter *i2c) { |
57 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
58 | return NULL; |
59 | } |
60 | #endif /* CONFIG_DVB_ATBM8830 */ |
61 | |
62 | #endif /* __ATBM8830_H__ */ |
63 | |