xref: /linux/drivers/media/dvb-frontends/tda8261_cfg.h (revision f3a8b6645dc2e60d11f20c1c23afd964ff4e55ae)
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 	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 
37 static 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 
55 static 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