Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / media / common / tuners / xc4000.h
blobe6a44d151cbdd9701d81db0794d40d87548e4e14
1 /*
2 * Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
4 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
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.
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
15 * GNU General Public License for more details.
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.
22 #ifndef __XC4000_H__
23 #define __XC4000_H__
25 #include <linux/firmware.h>
27 struct dvb_frontend;
28 struct i2c_adapter;
30 struct xc4000_config {
31 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 */
39 u32 if_khz;
42 /* xc4000 callback command */
43 #define XC4000_TUNER_RESET 0
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().
53 #if defined(CONFIG_MEDIA_TUNER_XC4000) || (defined(CONFIG_MEDIA_TUNER_XC4000_MODULE) && defined(MODULE))
54 extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
55 struct i2c_adapter *i2c,
56 struct xc4000_config *cfg);
57 #else
58 static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
59 struct i2c_adapter *i2c,
60 struct xc4000_config *cfg)
62 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
63 return NULL;
65 #endif
67 #endif