1/*
2	STB6100 Silicon Tuner wrapper
3	Copyright (C)2009 Igor M. Liplianin (liplianin@me.by)
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
20static int stb6100_get_freq(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	struct tuner_state	state;
25	int err = 0;
26
27	if (tuner_ops->get_state) {
28		if (frontend_ops->i2c_gate_ctrl)
29			frontend_ops->i2c_gate_ctrl(fe, 1);
30
31		err = tuner_ops->get_state(fe, DVBFE_TUNER_FREQUENCY, &state);
32		if (err < 0) {
33			printk(KERN_ERR "%s: Invalid parameter\n", __func__);
34			return err;
35		}
36
37		if (frontend_ops->i2c_gate_ctrl)
38			frontend_ops->i2c_gate_ctrl(fe, 0);
39
40		*frequency = state.frequency;
41	}
42
43	return 0;
44}
45
46static int stb6100_set_freq(struct dvb_frontend *fe, u32 frequency)
47{
48	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
49	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
50	struct tuner_state	state;
51	int err = 0;
52
53	state.frequency = frequency;
54
55	if (tuner_ops->set_state) {
56		if (frontend_ops->i2c_gate_ctrl)
57			frontend_ops->i2c_gate_ctrl(fe, 1);
58
59		err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &state);
60		if (err < 0) {
61			printk(KERN_ERR "%s: Invalid parameter\n", __func__);
62			return err;
63		}
64
65		if (frontend_ops->i2c_gate_ctrl)
66			frontend_ops->i2c_gate_ctrl(fe, 0);
67
68	}
69
70	return 0;
71}
72
73static int stb6100_get_bandw(struct dvb_frontend *fe, u32 *bandwidth)
74{
75	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
76	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
77	struct tuner_state	state;
78	int err = 0;
79
80	if (tuner_ops->get_state) {
81		if (frontend_ops->i2c_gate_ctrl)
82			frontend_ops->i2c_gate_ctrl(fe, 1);
83
84		err = tuner_ops->get_state(fe, DVBFE_TUNER_BANDWIDTH, &state);
85		if (err < 0) {
86			printk(KERN_ERR "%s: Invalid parameter\n", __func__);
87			return err;
88		}
89
90		if (frontend_ops->i2c_gate_ctrl)
91			frontend_ops->i2c_gate_ctrl(fe, 0);
92
93		*bandwidth = state.bandwidth;
94	}
95
96	return 0;
97}
98
99static int stb6100_set_bandw(struct dvb_frontend *fe, u32 bandwidth)
100{
101	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
102	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
103	struct tuner_state	state;
104	int err = 0;
105
106	state.bandwidth = bandwidth;
107
108	if (tuner_ops->set_state) {
109		if (frontend_ops->i2c_gate_ctrl)
110			frontend_ops->i2c_gate_ctrl(fe, 1);
111
112		err = tuner_ops->set_state(fe, DVBFE_TUNER_BANDWIDTH, &state);
113		if (err < 0) {
114			printk(KERN_ERR "%s: Invalid parameter\n", __func__);
115			return err;
116		}
117
118		if (frontend_ops->i2c_gate_ctrl)
119			frontend_ops->i2c_gate_ctrl(fe, 0);
120
121	}
122
123	return 0;
124}
125