drivers/media/dvb-frontends/tda8261_cfg.h

   1 /*
   2         TDA8261 8PSK/QPSK tuner driver
   3         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   4
   5         This program is free software; you can redistribute it and/or modify
   6         it under the terms of the GNU General Public License as published by
   7         the Free Software Foundation; either version 2 of the License, or
   8         (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful,
  11         but WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13         GNU General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License
  16         along with this program; if not, write to the Free Software
  17         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 static int tda8261_get_frequency(struct dvb_frontend *fe, u32 *frequency)
  21 {
  22         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  23         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  24         int err = 0;
  25
  26         if (tuner_ops->get_frequency) {
  27                 err = tuner_ops->get_frequency(fe, frequency);
  28                 if (err < 0) {
  29                         pr_err("%s: Invalid parameter\n", __func__);
  30                         return err;
  31                 }
  32                 pr_debug("%s: Frequency=%d\n", __func__, *frequency);
  33         }
  34         return 0;
  35 }
  36
  37 static int tda8261_set_frequency(struct dvb_frontend *fe, u32 frequency)
  38 {
  39         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  40         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  41         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
  42         int err = 0;
  43
  44         if (tuner_ops->set_params) {
  45                 err = tuner_ops->set_params(fe);
  46                 if (err < 0) {
  47                         pr_err("%s: Invalid parameter\n", __func__);
  48                         return err;
  49                 }
  50         }
  51         pr_debug("%s: Frequency=%d\n", __func__, c->frequency);
  52         return 0;
  53 }
  54
  55 static int tda8261_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
  56 {
  57         /* FIXME! need to calculate Bandwidth */
  58         *bandwidth = 40000000;
  59
  60         return 0;
  61 }