kernel/drivers/media/dvb-frontends/stb6100_cfg.h

   1 /*
   2         STB6100 Silicon Tuner
   3         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   4
   5         Copyright (C) ST Microelectronics
   6
   7         This program is free software; you can redistribute it and/or modify
   8         it under the terms of the GNU General Public License as published by
   9         the Free Software Foundation; either version 2 of the License, or
  10         (at your option) any later version.
  11
  12         This program is distributed in the hope that it will be useful,
  13         but WITHOUT ANY WARRANTY; without even the implied warranty of
  14         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15         GNU General Public License for more details.
  16
  17         You should have received a copy of the GNU General Public License
  18         along with this program; if not, write to the Free Software
  19         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 static int stb6100_get_frequency(struct dvb_frontend *fe, u32 *frequency)
  23 {
  24         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  25         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  26         struct tuner_state      t_state;
  27         int err = 0;
  28
  29         if (tuner_ops->get_state) {
  30                 err = tuner_ops->get_state(fe, DVBFE_TUNER_FREQUENCY, &t_state);
  31                 if (err < 0) {
  32                         printk("%s: Invalid parameter\n", __func__);
  33                         return err;
  34                 }
  35                 *frequency = t_state.frequency;
  36         }
  37         return 0;
  38 }
  39
  40 static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency)
  41 {
  42         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  43         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  44         struct tuner_state      t_state;
  45         int err = 0;
  46
  47         t_state.frequency = frequency;
  48
  49         if (tuner_ops->set_state) {
  50                 err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &t_state);
  51                 if (err < 0) {
  52                         printk("%s: Invalid parameter\n", __func__);
  53                         return err;
  54                 }
  55         }
  56         return 0;
  57 }
  58
  59 static int stb6100_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         }
  74         return 0;
  75 }
  76
  77 static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
  78 {
  79         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  80         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  81         struct tuner_state      t_state;
  82         int err = 0;
  83
  84         t_state.bandwidth = bandwidth;
  85
  86         if (tuner_ops->set_state) {
  87                 err = tuner_ops->set_state(fe, DVBFE_TUNER_BANDWIDTH, &t_state);
  88                 if (err < 0) {
  89                         printk("%s: Invalid parameter\n", __func__);
  90                         return err;
  91                 }
  92         }
  93         return 0;
  94 }