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
stb6100_get_frequency(struct dvb_frontend * fe,u32 * frequency)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 }
40 return 0;
41 }
42
stb6100_set_frequency(struct dvb_frontend * fe,u32 frequency)43 static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency)
44 {
45 struct dvb_frontend_ops *frontend_ops = NULL;
46 struct dvb_tuner_ops *tuner_ops = NULL;
47 struct tuner_state t_state;
48 int err = 0;
49
50 t_state.frequency = frequency;
51 if (&fe->ops)
52 frontend_ops = &fe->ops;
53 if (&frontend_ops->tuner_ops)
54 tuner_ops = &frontend_ops->tuner_ops;
55 if (tuner_ops->set_state) {
56 if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &t_state)) < 0) {
57 printk("%s: Invalid parameter\n", __func__);
58 return err;
59 }
60 }
61 return 0;
62 }
63
stb6100_get_bandwidth(struct dvb_frontend * fe,u32 * bandwidth)64 static int stb6100_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
65 {
66 struct dvb_frontend_ops *frontend_ops = &fe->ops;
67 struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops;
68 struct tuner_state t_state;
69 int err = 0;
70
71 if (&fe->ops)
72 frontend_ops = &fe->ops;
73 if (&frontend_ops->tuner_ops)
74 tuner_ops = &frontend_ops->tuner_ops;
75 if (tuner_ops->get_state) {
76 if ((err = tuner_ops->get_state(fe, DVBFE_TUNER_BANDWIDTH, &t_state)) < 0) {
77 printk("%s: Invalid parameter\n", __func__);
78 return err;
79 }
80 *bandwidth = t_state.bandwidth;
81 }
82 return 0;
83 }
84
stb6100_set_bandwidth(struct dvb_frontend * fe,u32 bandwidth)85 static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
86 {
87 struct dvb_frontend_ops *frontend_ops = NULL;
88 struct dvb_tuner_ops *tuner_ops = NULL;
89 struct tuner_state t_state;
90 int err = 0;
91
92 t_state.bandwidth = bandwidth;
93 if (&fe->ops)
94 frontend_ops = &fe->ops;
95 if (&frontend_ops->tuner_ops)
96 tuner_ops = &frontend_ops->tuner_ops;
97 if (tuner_ops->set_state) {
98 if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_BANDWIDTH, &t_state)) < 0) {
99 printk("%s: Invalid parameter\n", __func__);
100 return err;
101 }
102 }
103 return 0;
104 }
105