blob: 42bbec2409fdf3c6499970f8c8cdb5da96382ddf [file] [log] [blame]
rjw1f884582022-01-06 17:20:42 +08001/*
2 * Driver for Xceive XC5000 "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.
16 */
17
18#ifndef __XC5000_H__
19#define __XC5000_H__
20
21#include <linux/firmware.h>
22
23struct dvb_frontend;
24struct i2c_adapter;
25
26#define XC5000A 1
27#define XC5000C 2
28
29struct xc5000_config {
30 u8 i2c_address;
31 u32 if_khz;
32 u8 radio_input;
33 u16 xtal_khz;
34 u16 output_amp;
35
36 int chip_id;
37};
38
39/* xc5000 callback command */
40#define XC5000_TUNER_RESET 0
41
42/* Possible Radio inputs */
43#define XC5000_RADIO_NOT_CONFIGURED 0
44#define XC5000_RADIO_FM1 1
45#define XC5000_RADIO_FM2 2
46#define XC5000_RADIO_FM1_MONO 3
47
48/* For each bridge framework, when it attaches either analog or digital,
49 * it has to store a reference back to its _core equivalent structure,
50 * so that it can service the hardware by steering gpio's etc.
51 * Each bridge implementation is different so cast devptr accordingly.
52 * The xc5000 driver cares not for this value, other than ensuring
53 * it's passed back to a bridge during tuner_callback().
54 */
55
56#if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC5000)
57extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
58 struct i2c_adapter *i2c,
59 const struct xc5000_config *cfg);
60#else
61static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
62 struct i2c_adapter *i2c,
63 const struct xc5000_config *cfg)
64{
65 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
66 return NULL;
67}
68#endif
69
70#endif