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
28struct dvb_frontend;
29struct i2c_adapter;
30
31#define XC5000A 1
32#define XC5000C 2
33
34struct xc5000_config {
35	u8   i2c_address;
36	u32  if_khz;
37	u8   radio_input;
38	u16  xtal_khz;
39	u16  output_amp;
40
41	int chip_id;
42};
43
44/* xc5000 callback command */
45#define XC5000_TUNER_RESET		0
46
47/* Possible Radio inputs */
48#define XC5000_RADIO_NOT_CONFIGURED		0
49#define XC5000_RADIO_FM1			1
50#define XC5000_RADIO_FM2			2
51#define XC5000_RADIO_FM1_MONO			3
52
53/* For each bridge framework, when it attaches either analog or digital,
54 * it has to store a reference back to its _core equivalent structure,
55 * so that it can service the hardware by steering gpio's etc.
56 * Each bridge implementation is different so cast devptr accordingly.
57 * The xc5000 driver cares not for this value, other than ensuring
58 * it's passed back to a bridge during tuner_callback().
59 */
60
61#if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC5000)
62extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
63					  struct i2c_adapter *i2c,
64					  const struct xc5000_config *cfg);
65#else
66static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
67						 struct i2c_adapter *i2c,
68						 const struct xc5000_config *cfg)
69{
70	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
71	return NULL;
72}
73#endif
74
75#endif
76