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 = NULL;
  25         struct dvb_tuner_ops    *tuner_ops = NULL;
  26         struct tuner_state      t_state;
  27         int err = 0;
  28
  29         if (&fe->ops)
  30                 frontend_ops = &fe->ops;
  31         if (&frontend_ops->tuner_ops)
  32                 tuner_ops = &frontend_ops->tuner_ops;
  33         if (tuner_ops->get_state) {
  34                 if ((err = tuner_ops->get_state(fe, DVBFE_TUNER_FREQUENCY, &t_state)) < 0) {
  35                         printk("%s: Invalid parameter\n", __func__);
  36                         return err;
  37                 }
  38                 *frequency = t_state.frequency;
  39                 printk("%s: Frequency=%d\n", __func__, t_state.frequency);
  40         }
  41         return 0;
  42 }
  43
  44 static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency)
  45 {
  46         struct dvb_frontend_ops *frontend_ops = NULL;
  47         struct dvb_tuner_ops    *tuner_ops = NULL;
  48         struct tuner_state      t_state;
  49         int err = 0;
  50
  51         t_state.frequency = frequency;
  52         if (&fe->ops)
  53                 frontend_ops = &fe->ops;
  54         if (&frontend_ops->tuner_ops)
  55                 tuner_ops = &frontend_ops->tuner_ops;
  56         if (tuner_ops->set_state) {
  57                 if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &t_state)) < 0) {
  58                         printk("%s: Invalid parameter\n", __func__);
  59                         return err;
  60                 }
  61         }
  62         printk("%s: Frequency=%d\n", __func__, t_state.frequency);
  63         return 0;
  64 }
  65
  66 static int stb6100_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
  67 {
  68         struct dvb_frontend_ops *frontend_ops = &fe->ops;
  69         struct dvb_tuner_ops    *tuner_ops = &frontend_ops->tuner_ops;
  70         struct tuner_state      t_state;
  71         int err = 0;
  72
  73         if (&fe->ops)
  74                 frontend_ops = &fe->ops;
  75         if (&frontend_ops->tuner_ops)
  76                 tuner_ops = &frontend_ops->tuner_ops;
  77         if (tuner_ops->get_state) {
  78                 if ((err = tuner_ops->get_state(fe, DVBFE_TUNER_BANDWIDTH, &t_state)) < 0) {
  79                         printk("%s: Invalid parameter\n", __func__);
  80                         return err;
  81                 }
  82                 *bandwidth = t_state.bandwidth;
  83         }
  84         printk("%s: Bandwidth=%d\n", __func__, t_state.bandwidth);
  85         return 0;
  86 }
  87
  88 static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
  89 {
  90         struct dvb_frontend_ops *frontend_ops = NULL;
  91         struct dvb_tuner_ops    *tuner_ops = NULL;
  92         struct tuner_state      t_state;
  93         int err = 0;
  94
  95         t_state.bandwidth = bandwidth;
  96         if (&fe->ops)
  97                 frontend_ops = &fe->ops;
  98         if (&frontend_ops->tuner_ops)
  99                 tuner_ops = &frontend_ops->tuner_ops;
 100         if (tuner_ops->set_state) {
 101                 if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_BANDWIDTH, &t_state)) < 0) {
 102                         printk("%s: Invalid parameter\n", __func__);
 103                         return err;
 104                 }
 105         }
 106         printk("%s: Bandwidth=%d\n", __func__, t_state.bandwidth);
 107         return 0;
 108 }