Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / media / dvb-frontends / lgdt3306a.h
blob8b53044f5bdb4027cd3e51c184b08f6606304b7f
1 /*
2 * Support for LGDT3306A - 8VSB/QAM-B
4 * Copyright (C) 2013,2014 Fred Richter <frichter@hauppauge.com>
5 * based on lgdt3305.[ch] by Michael Krufky
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
18 #ifndef _LGDT3306A_H_
19 #define _LGDT3306A_H_
21 #include <linux/i2c.h>
22 #include <media/dvb_frontend.h>
25 enum lgdt3306a_mpeg_mode {
26 LGDT3306A_MPEG_PARALLEL = 0,
27 LGDT3306A_MPEG_SERIAL = 1,
30 enum lgdt3306a_tp_clock_edge {
31 LGDT3306A_TPCLK_RISING_EDGE = 0,
32 LGDT3306A_TPCLK_FALLING_EDGE = 1,
35 enum lgdt3306a_tp_valid_polarity {
36 LGDT3306A_TP_VALID_LOW = 0,
37 LGDT3306A_TP_VALID_HIGH = 1,
40 struct lgdt3306a_config {
41 u8 i2c_addr;
43 /* user defined IF frequency in KHz */
44 u16 qam_if_khz;
45 u16 vsb_if_khz;
47 /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
48 unsigned int deny_i2c_rptr:1;
50 /* spectral inversion - 0:disabled 1:enabled */
51 unsigned int spectral_inversion:1;
53 enum lgdt3306a_mpeg_mode mpeg_mode;
54 enum lgdt3306a_tp_clock_edge tpclk_edge;
55 enum lgdt3306a_tp_valid_polarity tpvalid_polarity;
57 /* demod clock freq in MHz; 24 or 25 supported */
58 int xtalMHz;
60 /* returned by driver if using i2c bus multiplexing */
61 struct dvb_frontend **fe;
62 struct i2c_adapter **i2c_adapter;
65 #if IS_REACHABLE(CONFIG_DVB_LGDT3306A)
66 struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config,
67 struct i2c_adapter *i2c_adap);
68 #else
69 static inline
70 struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config,
71 struct i2c_adapter *i2c_adap)
73 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
74 return NULL;
76 #endif /* CONFIG_DVB_LGDT3306A */
78 #endif /* _LGDT3306A_H_ */