xref: /openbmc/linux/drivers/media/dvb-frontends/tdhd1.h (revision 991ce92f8de24cde063d531246602b6e14d3fef2)
19a0bf528SMauro Carvalho Chehab /*
29a0bf528SMauro Carvalho Chehab  * tdhd1.h - ALPS TDHD1-204A tuner support
39a0bf528SMauro Carvalho Chehab  *
49a0bf528SMauro Carvalho Chehab  * Copyright (C) 2008 Oliver Endriss <o.endriss@gmx.de>
59a0bf528SMauro Carvalho Chehab  *
69a0bf528SMauro Carvalho Chehab  *
79a0bf528SMauro Carvalho Chehab  * This program is free software; you can redistribute it and/or
89a0bf528SMauro Carvalho Chehab  * modify it under the terms of the GNU General Public License
99a0bf528SMauro Carvalho Chehab  * as published by the Free Software Foundation; either version 2
109a0bf528SMauro Carvalho Chehab  * of the License, or (at your option) any later version.
119a0bf528SMauro Carvalho Chehab  *
129a0bf528SMauro Carvalho Chehab  * This program is distributed in the hope that it will be useful,
139a0bf528SMauro Carvalho Chehab  * but WITHOUT ANY WARRANTY; without even the implied warranty of
149a0bf528SMauro Carvalho Chehab  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
159a0bf528SMauro Carvalho Chehab  * GNU General Public License for more details.
169a0bf528SMauro Carvalho Chehab  *
179a0bf528SMauro Carvalho Chehab  * You should have received a copy of the GNU General Public License
189a0bf528SMauro Carvalho Chehab  * along with this program; if not, write to the Free Software
199a0bf528SMauro Carvalho Chehab  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
209a0bf528SMauro Carvalho Chehab  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
219a0bf528SMauro Carvalho Chehab  *
229a0bf528SMauro Carvalho Chehab  *
23*991ce92fSMauro Carvalho Chehab  * The project's page is at https://linuxtv.org
249a0bf528SMauro Carvalho Chehab  */
259a0bf528SMauro Carvalho Chehab 
269a0bf528SMauro Carvalho Chehab #ifndef TDHD1_H
279a0bf528SMauro Carvalho Chehab #define TDHD1_H
289a0bf528SMauro Carvalho Chehab 
299a0bf528SMauro Carvalho Chehab #include "tda1004x.h"
309a0bf528SMauro Carvalho Chehab 
319a0bf528SMauro Carvalho Chehab static int alps_tdhd1_204_request_firmware(struct dvb_frontend *fe, const struct firmware **fw, char *name);
329a0bf528SMauro Carvalho Chehab 
339a0bf528SMauro Carvalho Chehab static struct tda1004x_config alps_tdhd1_204a_config = {
349a0bf528SMauro Carvalho Chehab 	.demod_address = 0x8,
359a0bf528SMauro Carvalho Chehab 	.invert = 1,
369a0bf528SMauro Carvalho Chehab 	.invert_oclk = 0,
379a0bf528SMauro Carvalho Chehab 	.xtal_freq = TDA10046_XTAL_4M,
389a0bf528SMauro Carvalho Chehab 	.agc_config = TDA10046_AGC_DEFAULT,
399a0bf528SMauro Carvalho Chehab 	.if_freq = TDA10046_FREQ_3617,
409a0bf528SMauro Carvalho Chehab 	.request_firmware = alps_tdhd1_204_request_firmware
419a0bf528SMauro Carvalho Chehab };
429a0bf528SMauro Carvalho Chehab 
439a0bf528SMauro Carvalho Chehab static int alps_tdhd1_204a_tuner_set_params(struct dvb_frontend *fe)
449a0bf528SMauro Carvalho Chehab {
459a0bf528SMauro Carvalho Chehab 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
469a0bf528SMauro Carvalho Chehab 	struct i2c_adapter *i2c = fe->tuner_priv;
479a0bf528SMauro Carvalho Chehab 	u8 data[4];
489a0bf528SMauro Carvalho Chehab 	struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
499a0bf528SMauro Carvalho Chehab 	u32 div;
509a0bf528SMauro Carvalho Chehab 
519a0bf528SMauro Carvalho Chehab 	div = (p->frequency + 36166666) / 166666;
529a0bf528SMauro Carvalho Chehab 
539a0bf528SMauro Carvalho Chehab 	data[0] = (div >> 8) & 0x7f;
549a0bf528SMauro Carvalho Chehab 	data[1] = div & 0xff;
559a0bf528SMauro Carvalho Chehab 	data[2] = 0x85;
569a0bf528SMauro Carvalho Chehab 
579a0bf528SMauro Carvalho Chehab 	if (p->frequency >= 174000000 && p->frequency <= 230000000)
589a0bf528SMauro Carvalho Chehab 		data[3] = 0x02;
599a0bf528SMauro Carvalho Chehab 	else if (p->frequency >= 470000000 && p->frequency <= 823000000)
609a0bf528SMauro Carvalho Chehab 		data[3] = 0x0C;
619a0bf528SMauro Carvalho Chehab 	else if (p->frequency > 823000000 && p->frequency <= 862000000)
629a0bf528SMauro Carvalho Chehab 		data[3] = 0x8C;
639a0bf528SMauro Carvalho Chehab 	else
649a0bf528SMauro Carvalho Chehab 		return -EINVAL;
659a0bf528SMauro Carvalho Chehab 
669a0bf528SMauro Carvalho Chehab 	if (fe->ops.i2c_gate_ctrl)
679a0bf528SMauro Carvalho Chehab 		fe->ops.i2c_gate_ctrl(fe, 1);
689a0bf528SMauro Carvalho Chehab 	if (i2c_transfer(i2c, &msg, 1) != 1)
699a0bf528SMauro Carvalho Chehab 		return -EIO;
709a0bf528SMauro Carvalho Chehab 
719a0bf528SMauro Carvalho Chehab 	return 0;
729a0bf528SMauro Carvalho Chehab }
739a0bf528SMauro Carvalho Chehab 
749a0bf528SMauro Carvalho Chehab #endif /* TDHD1_H */
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