xref: /openbmc/linux/drivers/media/dvb-frontends/tdhd1.h (revision 9a0bf528b4d66b605f02634236da085595c22101)
1*9a0bf528SMauro Carvalho Chehab /*
2*9a0bf528SMauro Carvalho Chehab  * tdhd1.h - ALPS TDHD1-204A tuner support
3*9a0bf528SMauro Carvalho Chehab  *
4*9a0bf528SMauro Carvalho Chehab  * Copyright (C) 2008 Oliver Endriss <o.endriss@gmx.de>
5*9a0bf528SMauro Carvalho Chehab  *
6*9a0bf528SMauro Carvalho Chehab  *
7*9a0bf528SMauro Carvalho Chehab  * This program is free software; you can redistribute it and/or
8*9a0bf528SMauro Carvalho Chehab  * modify it under the terms of the GNU General Public License
9*9a0bf528SMauro Carvalho Chehab  * as published by the Free Software Foundation; either version 2
10*9a0bf528SMauro Carvalho Chehab  * of the License, or (at your option) any later version.
11*9a0bf528SMauro Carvalho Chehab  *
12*9a0bf528SMauro Carvalho Chehab  * This program is distributed in the hope that it will be useful,
13*9a0bf528SMauro Carvalho Chehab  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14*9a0bf528SMauro Carvalho Chehab  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15*9a0bf528SMauro Carvalho Chehab  * GNU General Public License for more details.
16*9a0bf528SMauro Carvalho Chehab  *
17*9a0bf528SMauro Carvalho Chehab  * You should have received a copy of the GNU General Public License
18*9a0bf528SMauro Carvalho Chehab  * along with this program; if not, write to the Free Software
19*9a0bf528SMauro Carvalho Chehab  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20*9a0bf528SMauro Carvalho Chehab  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
21*9a0bf528SMauro Carvalho Chehab  *
22*9a0bf528SMauro Carvalho Chehab  *
23*9a0bf528SMauro Carvalho Chehab  * The project's page is at http://www.linuxtv.org
24*9a0bf528SMauro Carvalho Chehab  */
25*9a0bf528SMauro Carvalho Chehab 
26*9a0bf528SMauro Carvalho Chehab #ifndef TDHD1_H
27*9a0bf528SMauro Carvalho Chehab #define TDHD1_H
28*9a0bf528SMauro Carvalho Chehab 
29*9a0bf528SMauro Carvalho Chehab #include "tda1004x.h"
30*9a0bf528SMauro Carvalho Chehab 
31*9a0bf528SMauro Carvalho Chehab static int alps_tdhd1_204_request_firmware(struct dvb_frontend *fe, const struct firmware **fw, char *name);
32*9a0bf528SMauro Carvalho Chehab 
33*9a0bf528SMauro Carvalho Chehab static struct tda1004x_config alps_tdhd1_204a_config = {
34*9a0bf528SMauro Carvalho Chehab 	.demod_address = 0x8,
35*9a0bf528SMauro Carvalho Chehab 	.invert = 1,
36*9a0bf528SMauro Carvalho Chehab 	.invert_oclk = 0,
37*9a0bf528SMauro Carvalho Chehab 	.xtal_freq = TDA10046_XTAL_4M,
38*9a0bf528SMauro Carvalho Chehab 	.agc_config = TDA10046_AGC_DEFAULT,
39*9a0bf528SMauro Carvalho Chehab 	.if_freq = TDA10046_FREQ_3617,
40*9a0bf528SMauro Carvalho Chehab 	.request_firmware = alps_tdhd1_204_request_firmware
41*9a0bf528SMauro Carvalho Chehab };
42*9a0bf528SMauro Carvalho Chehab 
43*9a0bf528SMauro Carvalho Chehab static int alps_tdhd1_204a_tuner_set_params(struct dvb_frontend *fe)
44*9a0bf528SMauro Carvalho Chehab {
45*9a0bf528SMauro Carvalho Chehab 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
46*9a0bf528SMauro Carvalho Chehab 	struct i2c_adapter *i2c = fe->tuner_priv;
47*9a0bf528SMauro Carvalho Chehab 	u8 data[4];
48*9a0bf528SMauro Carvalho Chehab 	struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
49*9a0bf528SMauro Carvalho Chehab 	u32 div;
50*9a0bf528SMauro Carvalho Chehab 
51*9a0bf528SMauro Carvalho Chehab 	div = (p->frequency + 36166666) / 166666;
52*9a0bf528SMauro Carvalho Chehab 
53*9a0bf528SMauro Carvalho Chehab 	data[0] = (div >> 8) & 0x7f;
54*9a0bf528SMauro Carvalho Chehab 	data[1] = div & 0xff;
55*9a0bf528SMauro Carvalho Chehab 	data[2] = 0x85;
56*9a0bf528SMauro Carvalho Chehab 
57*9a0bf528SMauro Carvalho Chehab 	if (p->frequency >= 174000000 && p->frequency <= 230000000)
58*9a0bf528SMauro Carvalho Chehab 		data[3] = 0x02;
59*9a0bf528SMauro Carvalho Chehab 	else if (p->frequency >= 470000000 && p->frequency <= 823000000)
60*9a0bf528SMauro Carvalho Chehab 		data[3] = 0x0C;
61*9a0bf528SMauro Carvalho Chehab 	else if (p->frequency > 823000000 && p->frequency <= 862000000)
62*9a0bf528SMauro Carvalho Chehab 		data[3] = 0x8C;
63*9a0bf528SMauro Carvalho Chehab 	else
64*9a0bf528SMauro Carvalho Chehab 		return -EINVAL;
65*9a0bf528SMauro Carvalho Chehab 
66*9a0bf528SMauro Carvalho Chehab 	if (fe->ops.i2c_gate_ctrl)
67*9a0bf528SMauro Carvalho Chehab 		fe->ops.i2c_gate_ctrl(fe, 1);
68*9a0bf528SMauro Carvalho Chehab 	if (i2c_transfer(i2c, &msg, 1) != 1)
69*9a0bf528SMauro Carvalho Chehab 		return -EIO;
70*9a0bf528SMauro Carvalho Chehab 
71*9a0bf528SMauro Carvalho Chehab 	return 0;
72*9a0bf528SMauro Carvalho Chehab }
73*9a0bf528SMauro Carvalho Chehab 
74*9a0bf528SMauro Carvalho Chehab #endif /* TDHD1_H */
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