1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Driver for Xceive XC4000 "QAM/8VSB single chip tuner" |
4 | * |
5 | * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> |
6 | */ |
7 | |
8 | #ifndef __XC4000_H__ |
9 | #define __XC4000_H__ |
10 | |
11 | #include <linux/firmware.h> |
12 | |
13 | struct dvb_frontend; |
14 | struct i2c_adapter; |
15 | |
16 | struct xc4000_config { |
17 | u8 i2c_address; |
18 | /* if non-zero, power management is enabled by default */ |
19 | u8 default_pm; |
20 | /* value to be written to XREG_AMPLITUDE in DVB-T mode (0: no write) */ |
21 | u8 dvb_amplitude; |
22 | /* if non-zero, register 0x0E is set to filter analog TV video output */ |
23 | u8 set_smoothedcvbs; |
24 | /* IF for DVB-T */ |
25 | u32 if_khz; |
26 | }; |
27 | |
28 | /* xc4000 callback command */ |
29 | #define XC4000_TUNER_RESET 0 |
30 | |
31 | /* For each bridge framework, when it attaches either analog or digital, |
32 | * it has to store a reference back to its _core equivalent structure, |
33 | * so that it can service the hardware by steering gpio's etc. |
34 | * Each bridge implementation is different so cast devptr accordingly. |
35 | * The xc4000 driver cares not for this value, other than ensuring |
36 | * it's passed back to a bridge during tuner_callback(). |
37 | */ |
38 | |
39 | #if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC4000) |
40 | extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, |
41 | struct i2c_adapter *i2c, |
42 | struct xc4000_config *cfg); |
43 | #else |
44 | static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, |
45 | struct i2c_adapter *i2c, |
46 | struct xc4000_config *cfg) |
47 | { |
48 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
49 | return NULL; |
50 | } |
51 | #endif |
52 | |
53 | #endif |
54 | |