1 /*
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 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #ifndef __XC5000_H__
23 #define __XC5000_H__
24
25 #include <linux/kconfig.h>
26 #include <linux/firmware.h>
27
28 struct dvb_frontend;
29 struct i2c_adapter;
30
31 #define XC5000A 1
32 #define XC5000C 2
33
34 struct xc5000_config {
35 u8 i2c_address;
36 u32 if_khz;
37 u8 radio_input;
38 u16 xtal_khz;
39
40 int chip_id;
41 };
42
43 /* xc5000 callback command */
44 #define XC5000_TUNER_RESET 0
45
46 /* Possible Radio inputs */
47 #define XC5000_RADIO_NOT_CONFIGURED 0
48 #define XC5000_RADIO_FM1 1
49 #define XC5000_RADIO_FM2 2
50 #define XC5000_RADIO_FM1_MONO 3
51
52 /* For each bridge framework, when it attaches either analog or digital,
53 * it has to store a reference back to its _core equivalent structure,
54 * so that it can service the hardware by steering gpio's etc.
55 * Each bridge implementation is different so cast devptr accordingly.
56 * The xc5000 driver cares not for this value, other than ensuring
57 * it's passed back to a bridge during tuner_callback().
58 */
59
60 #if IS_ENABLED(CONFIG_MEDIA_TUNER_XC5000)
61 extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
62 struct i2c_adapter *i2c,
63 const struct xc5000_config *cfg);
64 #else
xc5000_attach(struct dvb_frontend * fe,struct i2c_adapter * i2c,const struct xc5000_config * cfg)65 static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
66 struct i2c_adapter *i2c,
67 const struct xc5000_config *cfg)
68 {
69 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
70 return NULL;
71 }
72 #endif
73
74 #endif
75