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/firmware.h>
26
27 struct dvb_frontend;
28 struct i2c_adapter;
29
30 struct xc5000_config {
31 u8 i2c_address;
32 u32 if_khz;
33 u8 radio_input;
34 };
35
36 /* xc5000 callback command */
37 #define XC5000_TUNER_RESET 0
38
39 /* Possible Radio inputs */
40 #define XC5000_RADIO_NOT_CONFIGURED 0
41 #define XC5000_RADIO_FM1 1
42 #define XC5000_RADIO_FM2 2
43 #define XC5000_RADIO_FM1_MONO 3
44
45 /* For each bridge framework, when it attaches either analog or digital,
46 * it has to store a reference back to its _core equivalent structure,
47 * so that it can service the hardware by steering gpio's etc.
48 * Each bridge implementation is different so cast devptr accordingly.
49 * The xc5000 driver cares not for this value, other than ensuring
50 * it's passed back to a bridge during tuner_callback().
51 */
52
53 #if defined(CONFIG_MEDIA_TUNER_XC5000) || \
54 (defined(CONFIG_MEDIA_TUNER_XC5000_MODULE) && defined(MODULE))
55 extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
56 struct i2c_adapter *i2c,
57 const struct xc5000_config *cfg);
58 #else
xc5000_attach(struct dvb_frontend * fe,struct i2c_adapter * i2c,const struct xc5000_config * cfg)59 static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
60 struct i2c_adapter *i2c,
61 const struct xc5000_config *cfg)
62 {
63 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
64 return NULL;
65 }
66 #endif
67
68 #endif
69