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8d009a0c DF |
1 | /* |
2 | * Driver for Xceive XC4000 "QAM/8VSB single chip tuner" | |
3 | * | |
4 | * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> | |
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 | * | |
15 | * GNU General Public License for more details. | |
8d009a0c DF |
16 | */ |
17 | ||
18 | #ifndef __XC4000_H__ | |
19 | #define __XC4000_H__ | |
20 | ||
21 | #include <linux/firmware.h> | |
22 | ||
23 | struct dvb_frontend; | |
24 | struct i2c_adapter; | |
25 | ||
26 | struct xc4000_config { | |
8edeb6eb | 27 | u8 i2c_address; |
28 | /* if non-zero, power management is enabled by default */ | |
29 | u8 default_pm; | |
30 | /* value to be written to XREG_AMPLITUDE in DVB-T mode (0: no write) */ | |
31 | u8 dvb_amplitude; | |
32 | /* if non-zero, register 0x0E is set to filter analog TV video output */ | |
33 | u8 set_smoothedcvbs; | |
34 | /* IF for DVB-T */ | |
fbe4a29f | 35 | u32 if_khz; |
8d009a0c DF |
36 | }; |
37 | ||
38 | /* xc4000 callback command */ | |
39 | #define XC4000_TUNER_RESET 0 | |
40 | ||
41 | /* For each bridge framework, when it attaches either analog or digital, | |
42 | * it has to store a reference back to its _core equivalent structure, | |
43 | * so that it can service the hardware by steering gpio's etc. | |
44 | * Each bridge implementation is different so cast devptr accordingly. | |
45 | * The xc4000 driver cares not for this value, other than ensuring | |
46 | * it's passed back to a bridge during tuner_callback(). | |
47 | */ | |
48 | ||
9b174527 | 49 | #if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC4000) |
8d009a0c DF |
50 | extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, |
51 | struct i2c_adapter *i2c, | |
52 | struct xc4000_config *cfg); | |
53 | #else | |
54 | static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, | |
55 | struct i2c_adapter *i2c, | |
56 | struct xc4000_config *cfg) | |
57 | { | |
58 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | |
59 | return NULL; | |
60 | } | |
61 | #endif | |
62 | ||
63 | #endif |