2 * tdhd1.h - ALPS TDHD1-204A tuner support
4 * Copyright (C) 2008 Oliver Endriss <o.endriss@gmx.de>
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.
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.
16 * To obtain the license, point your browser to
17 * http://www.gnu.org/copyleft/gpl.html
20 * The project's page is at https://linuxtv.org
28 static int alps_tdhd1_204_request_firmware(struct dvb_frontend *fe, const struct firmware **fw, char *name);
30 static struct tda1004x_config alps_tdhd1_204a_config = {
34 .xtal_freq = TDA10046_XTAL_4M,
35 .agc_config = TDA10046_AGC_DEFAULT,
36 .if_freq = TDA10046_FREQ_3617,
37 .request_firmware = alps_tdhd1_204_request_firmware
40 static int alps_tdhd1_204a_tuner_set_params(struct dvb_frontend *fe)
42 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
43 struct i2c_adapter *i2c = fe->tuner_priv;
45 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
48 div = (p->frequency + 36166666) / 166666;
50 data[0] = (div >> 8) & 0x7f;
54 if (p->frequency >= 174000000 && p->frequency <= 230000000)
56 else if (p->frequency >= 470000000 && p->frequency <= 823000000)
58 else if (p->frequency > 823000000 && p->frequency <= 862000000)
63 if (fe->ops.i2c_gate_ctrl)
64 fe->ops.i2c_gate_ctrl(fe, 1);
65 if (i2c_transfer(i2c, &msg, 1) != 1)