kernel/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         struct tuner_state      t_state;
  25         int err = 0;
  26
  27         if (tuner_ops->get_state) {
  28                 err = tuner_ops->get_state(fe, DVBFE_TUNER_FREQUENCY, &t_state);
  29                 if (err < 0) {
  30                         printk("%s: Invalid parameter\n", __func__);
  31                         return err;
  32                 }
  33                 *frequency = t_state.frequency;
  34                 printk("%s: Frequency=%d\n", __func__, t_state.frequency);
  35         }
  36         return 0;
  37 }
  38
  39 static int tda8261_set_frequency(struct dvb_frontend *fe, u32 frequency)
  40 {
  41         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  42         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  43         struct tuner_state      t_state;
  44         int err = 0;
  45
  46         t_state.frequency = frequency;
  47
  48         if (tuner_ops->set_state) {
  49                 err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &t_state);
  50                 if (err < 0) {
  51                         printk("%s: Invalid parameter\n", __func__);
  52                         return err;
  53                 }
  54         }
  55         printk("%s: Frequency=%d\n", __func__, t_state.frequency);
  56         return 0;
  57 }
  58
  59 static int tda8261_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
  60 {
  61         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  62         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  63         struct tuner_state      t_state;
  64         int err = 0;
  65
  66         if (tuner_ops->get_state) {
  67                 err = tuner_ops->get_state(fe, DVBFE_TUNER_BANDWIDTH, &t_state);
  68                 if (err < 0) {
  69                         printk("%s: Invalid parameter\n", __func__);
  70                         return err;
  71                 }
  72                 *bandwidth = t_state.bandwidth;
  73                 printk("%s: Bandwidth=%d\n", __func__, t_state.bandwidth);
  74         }
  75         return 0;
  76 }