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Davide Ferri8d009a02009-06-23 22:34:06 -03001/*
2 * Driver for Xceive XC4000 "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 __XC4000_H__
23#define __XC4000_H__
24
25#include <linux/firmware.h>
26
27struct dvb_frontend;
28struct i2c_adapter;
29
30struct xc4000_config {
istvan_v@mailbox.hu8edeb6e2011-06-06 13:03:44 -030031 u8 i2c_address;
32 /* if non-zero, power management is enabled by default */
33 u8 default_pm;
34 /* value to be written to XREG_AMPLITUDE in DVB-T mode (0: no write) */
35 u8 dvb_amplitude;
36 /* if non-zero, register 0x0E is set to filter analog TV video output */
37 u8 set_smoothedcvbs;
38 /* IF for DVB-T */
Istvan Vargafbe4a292011-06-03 10:11:48 -030039 u32 if_khz;
Davide Ferri8d009a02009-06-23 22:34:06 -030040};
41
42/* xc4000 callback command */
43#define XC4000_TUNER_RESET 0
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 xc4000 driver cares not for this value, other than ensuring
50 * it's passed back to a bridge during tuner_callback().
51 */
52
Arnd Bergmann9b174522015-02-18 14:12:42 -030053#if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC4000)
Davide Ferri8d009a02009-06-23 22:34:06 -030054extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
55 struct i2c_adapter *i2c,
56 struct xc4000_config *cfg);
57#else
58static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
59 struct i2c_adapter *i2c,
60 struct xc4000_config *cfg)
61{
62 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
63 return NULL;
64}
65#endif
66
67#endif