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c942fddf | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
8d009a0c DF |
2 | /* |
3 | * Driver for Xceive XC4000 "QAM/8VSB single chip tuner" | |
4 | * | |
5 | * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> | |
8d009a0c DF |
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 { | |
8edeb6eb | 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 */ | |
fbe4a29f | 25 | u32 if_khz; |
8d009a0c DF |
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 | ||
9b174527 | 39 | #if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC4000) |
8d009a0c DF |
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 |