LXR linux/drivers/media/dvb-frontends/tda8261

   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
  20static 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
  37static 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
  55static 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}
  62