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1da177e4 LT |
1 | /* |
2 | * Driver for Zarlink DVB-T MT352 demodulator | |
3 | * | |
4 | * Written by Holger Waechtler <holger@qanu.de> | |
5 | * and Daniel Mack <daniel@qanu.de> | |
6 | * | |
7 | * AVerMedia AVerTV DVB-T 771 support by | |
8 | * Wolfram Joost <dbox2@frokaschwei.de> | |
9 | * | |
10 | * Support for Samsung TDTC9251DH01C(M) tuner | |
11 | * Copyright (C) 2004 Antonio Mancuso <antonio.mancuso@digitaltelevision.it> | |
12 | * Amauri Celani <acelani@essegi.net> | |
13 | * | |
14 | * DVICO FusionHDTV DVB-T1 and DVICO FusionHDTV DVB-T Lite support by | |
15 | * Christopher Pascoe <c.pascoe@itee.uq.edu.au> | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * | |
26 | * GNU General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; if not, write to the Free Software | |
30 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.= | |
31 | */ | |
32 | ||
33 | #ifndef MT352_H | |
34 | #define MT352_H | |
35 | ||
36 | #include <linux/dvb/frontend.h> | |
37 | ||
38 | struct mt352_config | |
39 | { | |
40 | /* the demodulator's i2c address */ | |
41 | u8 demod_address; | |
42 | ||
43 | /* frequencies in kHz */ | |
44 | int adc_clock; // default: 20480 | |
45 | int if2; // default: 36166 | |
46 | ||
47 | /* set if no pll is connected to the secondary i2c bus */ | |
48 | int no_tuner; | |
49 | ||
50 | /* Initialise the demodulator and PLL. Cannot be NULL */ | |
51 | int (*demod_init)(struct dvb_frontend* fe); | |
1da177e4 LT |
52 | }; |
53 | ||
9b174527 | 54 | #if IS_REACHABLE(CONFIG_DVB_MT352) |
1da177e4 LT |
55 | extern struct dvb_frontend* mt352_attach(const struct mt352_config* config, |
56 | struct i2c_adapter* i2c); | |
102a342b AQ |
57 | #else |
58 | static inline struct dvb_frontend* mt352_attach(const struct mt352_config* config, | |
59 | struct i2c_adapter* i2c) | |
60 | { | |
271ddbf7 | 61 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
102a342b AQ |
62 | return NULL; |
63 | } | |
64 | #endif // CONFIG_DVB_MT352 | |
1da177e4 | 65 | |
2e4e98e7 | 66 | static inline int mt352_write(struct dvb_frontend *fe, const u8 buf[], int len) { |
c10d14d6 AQ |
67 | int r = 0; |
68 | if (fe->ops.write) | |
69 | r = fe->ops.write(fe, buf, len); | |
70 | return r; | |
71 | } | |
1da177e4 LT |
72 | |
73 | #endif // MT352_H |