projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b699c271 IL |
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 | ||
| 20 | static int stb6100_get_freq(struct dvb_frontend *fe, u32 *frequency) | |
| 21 | { | |
| 20721185 EG |
22 | struct dvb_frontend_ops *frontend_ops = &fe->ops; |
| 23 | struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; | |
| b699c271 IL |
24 | struct tuner_state state; |
| 25 | int err = 0; | |
| 26 | ||
| b699c271 IL |
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 | ||
| 46 | static int stb6100_set_freq(struct dvb_frontend *fe, u32 frequency) | |
| 47 | { | |
| 20721185 EG |
48 | struct dvb_frontend_ops *frontend_ops = &fe->ops; |
| 49 | struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; | |
| b699c271 IL |
50 | struct tuner_state state; |
| 51 | int err = 0; | |
| 52 | ||
| 53 | state.frequency = frequency; | |
| 20721185 | 54 | |
| b699c271 IL |
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 | ||
| 73 | static int stb6100_get_bandw(struct dvb_frontend *fe, u32 *bandwidth) | |
| 74 | { | |
| 20721185 EG |
75 | struct dvb_frontend_ops *frontend_ops = &fe->ops; |
| 76 | struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; | |
| b699c271 IL |
77 | struct tuner_state state; |
| 78 | int err = 0; | |
| 79 | ||
| b699c271 IL |
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 | ||
| 99 | static int stb6100_set_bandw(struct dvb_frontend *fe, u32 bandwidth) | |
| 100 | { | |
| 20721185 EG |
101 | struct dvb_frontend_ops *frontend_ops = &fe->ops; |
| 102 | struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; | |
| b699c271 IL |
103 | struct tuner_state state; |
| 104 | int err = 0; | |
| 105 | ||
| 106 | state.bandwidth = bandwidth; | |
| 20721185 | 107 | |
| b699c271 IL |
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 | } |