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81ae953b OE |
1 | /* |
2 | * tdhd1.h - ALPS TDHD1-204A tuner support | |
3 | * | |
4 | * Copyright (C) 2008 Oliver Endriss <o.endriss@gmx.de> | |
5 | * | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version 2 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
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. | |
bcb63314 SA |
16 | * To obtain the license, point your browser to |
17 | * http://www.gnu.org/copyleft/gpl.html | |
81ae953b OE |
18 | * |
19 | * | |
991ce92f | 20 | * The project's page is at https://linuxtv.org |
81ae953b OE |
21 | */ |
22 | ||
23 | #ifndef TDHD1_H | |
24 | #define TDHD1_H | |
25 | ||
26 | #include "tda1004x.h" | |
27 | ||
83512e20 OE |
28 | static int alps_tdhd1_204_request_firmware(struct dvb_frontend *fe, const struct firmware **fw, char *name); |
29 | ||
81ae953b OE |
30 | static struct tda1004x_config alps_tdhd1_204a_config = { |
31 | .demod_address = 0x8, | |
32 | .invert = 1, | |
33 | .invert_oclk = 0, | |
34 | .xtal_freq = TDA10046_XTAL_4M, | |
35 | .agc_config = TDA10046_AGC_DEFAULT, | |
36 | .if_freq = TDA10046_FREQ_3617, | |
83512e20 | 37 | .request_firmware = alps_tdhd1_204_request_firmware |
81ae953b OE |
38 | }; |
39 | ||
14d24d14 | 40 | static int alps_tdhd1_204a_tuner_set_params(struct dvb_frontend *fe) |
81ae953b | 41 | { |
e7e10deb | 42 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
81ae953b OE |
43 | struct i2c_adapter *i2c = fe->tuner_priv; |
44 | u8 data[4]; | |
45 | struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) }; | |
46 | u32 div; | |
47 | ||
e7e10deb | 48 | div = (p->frequency + 36166666) / 166666; |
81ae953b OE |
49 | |
50 | data[0] = (div >> 8) & 0x7f; | |
51 | data[1] = div & 0xff; | |
52 | data[2] = 0x85; | |
53 | ||
e7e10deb | 54 | if (p->frequency >= 174000000 && p->frequency <= 230000000) |
81ae953b | 55 | data[3] = 0x02; |
e7e10deb | 56 | else if (p->frequency >= 470000000 && p->frequency <= 823000000) |
81ae953b | 57 | data[3] = 0x0C; |
e7e10deb | 58 | else if (p->frequency > 823000000 && p->frequency <= 862000000) |
81ae953b OE |
59 | data[3] = 0x8C; |
60 | else | |
61 | return -EINVAL; | |
62 | ||
63 | if (fe->ops.i2c_gate_ctrl) | |
64 | fe->ops.i2c_gate_ctrl(fe, 1); | |
65 | if (i2c_transfer(i2c, &msg, 1) != 1) | |
66 | return -EIO; | |
67 | ||
68 | return 0; | |
69 | } | |
70 | ||
71 | #endif /* TDHD1_H */ |