From 81ae953b687e7cdfa094b07a6544523f3bb81aa3 Mon Sep 17 00:00:00 2001 From: Oliver Endriss Date: Wed, 3 Sep 2008 18:16:09 -0300 Subject: V4L/DVB (8888): budget: Support Activy DVB-T with TDHD1 tuner Support Fujitsu-Siemens Activy DVB-T card rev AL (ALPS TDHD1-204A tuner). Signed-off-by: Oliver Endriss Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/tdhd1.h | 70 +++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 drivers/media/dvb/frontends/tdhd1.h (limited to 'drivers/media/dvb/frontends/tdhd1.h') diff --git a/drivers/media/dvb/frontends/tdhd1.h b/drivers/media/dvb/frontends/tdhd1.h new file mode 100644 index 00000000000..de8aac7d7ae --- /dev/null +++ b/drivers/media/dvb/frontends/tdhd1.h @@ -0,0 +1,70 @@ +/* + * tdhd1.h - ALPS TDHD1-204A tuner support + * + * Copyright (C) 2008 Oliver Endriss + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * Or, point your browser to http://www.gnu.org/copyleft/gpl.html + * + * + * The project's page is at http://www.linuxtv.org + */ + +#ifndef TDHD1_H +#define TDHD1_H + +#include "tda1004x.h" + +static struct tda1004x_config alps_tdhd1_204a_config = { + .demod_address = 0x8, + .invert = 1, + .invert_oclk = 0, + .xtal_freq = TDA10046_XTAL_4M, + .agc_config = TDA10046_AGC_DEFAULT, + .if_freq = TDA10046_FREQ_3617, +}; + +static int alps_tdhd1_204a_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) +{ + struct i2c_adapter *i2c = fe->tuner_priv; + u8 data[4]; + struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) }; + u32 div; + + div = (params->frequency + 36166666) / 166666; + + data[0] = (div >> 8) & 0x7f; + data[1] = div & 0xff; + data[2] = 0x85; + + if (params->frequency >= 174000000 && params->frequency <= 230000000) + data[3] = 0x02; + else if (params->frequency >= 470000000 && params->frequency <= 823000000) + data[3] = 0x0C; + else if (params->frequency > 823000000 && params->frequency <= 862000000) + data[3] = 0x8C; + else + return -EINVAL; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if (i2c_transfer(i2c, &msg, 1) != 1) + return -EIO; + + return 0; +} + +#endif /* TDHD1_H */ -- cgit v1.2.3