1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Driver for Xceive XC5000 "QAM/8VSB single chip tuner"
4 *
5 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
6 */
7
8 #ifndef __XC5000_H__
9 #define __XC5000_H__
10
11 #include <linux/firmware.h>
12
13 struct dvb_frontend;
14 struct i2c_adapter;
15
16 #define XC5000A 1
17 #define XC5000C 2
18
19 struct xc5000_config {
20 u8 i2c_address;
21 u32 if_khz;
22 u8 radio_input;
23 u16 xtal_khz;
24 u16 output_amp;
25
26 int chip_id;
27 };
28
29 /* xc5000 callback command */
30 #define XC5000_TUNER_RESET 0
31
32 /* Possible Radio inputs */
33 #define XC5000_RADIO_NOT_CONFIGURED 0
34 #define XC5000_RADIO_FM1 1
35 #define XC5000_RADIO_FM2 2
36 #define XC5000_RADIO_FM1_MONO 3
37
38 /* For each bridge framework, when it attaches either analog or digital,
39 * it has to store a reference back to its _core equivalent structure,
40 * so that it can service the hardware by steering gpio's etc.
41 * Each bridge implementation is different so cast devptr accordingly.
42 * The xc5000 driver cares not for this value, other than ensuring
43 * it's passed back to a bridge during tuner_callback().
44 */
45
46 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC5000)
47 extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
48 struct i2c_adapter *i2c,
49 const struct xc5000_config *cfg);
50 #else
xc5000_attach(struct dvb_frontend * fe,struct i2c_adapter * i2c,const struct xc5000_config * cfg)51 static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
52 struct i2c_adapter *i2c,
53 const struct xc5000_config *cfg)
54 {
55 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
56 return NULL;
57 }
58 #endif
59
60 #endif
61