8be969b313
* Better readability * Avoids duplication Comments from Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
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TDA8261 8PSK/QPSK tuner driver
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Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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static int tda8261_get_frequency(struct dvb_frontend *fe, u32 *frequency)
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{
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struct dvb_frontend_ops *frontend_ops = NULL;
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struct dvb_tuner_ops *tuner_ops = NULL;
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struct tuner_state t_state;
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int err = 0;
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if (&fe->ops)
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frontend_ops = &fe->ops;
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if (&frontend_ops->tuner_ops)
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tuner_ops = &frontend_ops->tuner_ops;
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if (tuner_ops->get_state) {
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if ((err = tuner_ops->get_state(fe, DVBFE_TUNER_FREQUENCY, &t_state)) < 0) {
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printk("%s: Invalid parameter\n", __func__);
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return err;
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}
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*frequency = t_state.frequency;
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printk("%s: Frequency=%d\n", __func__, t_state.frequency);
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}
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return 0;
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}
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static int tda8261_set_frequency(struct dvb_frontend *fe, u32 frequency)
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{
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struct dvb_frontend_ops *frontend_ops = NULL;
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struct dvb_tuner_ops *tuner_ops = NULL;
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struct tuner_state t_state;
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int err = 0;
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t_state.frequency = frequency;
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if (&fe->ops)
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frontend_ops = &fe->ops;
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if (&frontend_ops->tuner_ops)
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tuner_ops = &frontend_ops->tuner_ops;
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if (tuner_ops->set_state) {
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if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &t_state)) < 0) {
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printk("%s: Invalid parameter\n", __func__);
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return err;
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}
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}
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printk("%s: Frequency=%d\n", __func__, t_state.frequency);
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return 0;
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}
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static int tda8261_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
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{
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struct dvb_frontend_ops *frontend_ops = &fe->ops;
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struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops;
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struct tuner_state t_state;
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int err = 0;
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if (&fe->ops)
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frontend_ops = &fe->ops;
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if (&frontend_ops->tuner_ops)
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tuner_ops = &frontend_ops->tuner_ops;
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if (tuner_ops->get_state) {
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if ((err = tuner_ops->get_state(fe, DVBFE_TUNER_BANDWIDTH, &t_state)) < 0) {
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printk("%s: Invalid parameter\n", __func__);
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return err;
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}
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*bandwidth = t_state.bandwidth;
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}
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printk("%s: Bandwidth=%d\n", __func__, t_state.bandwidth);
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return 0;
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}
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