| /* |
| STB6100 Silicon Tuner wrapper |
| Copyright (C)2009 Igor M. Liplianin (liplianin@me.by) |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| static int stb6100_get_freq(struct dvb_frontend *fe, u32 *frequency) |
| { |
| struct dvb_frontend_ops *frontend_ops = NULL; |
| struct dvb_tuner_ops *tuner_ops = NULL; |
| struct tuner_state state; |
| int err = 0; |
| |
| if (&fe->ops) |
| frontend_ops = &fe->ops; |
| if (&frontend_ops->tuner_ops) |
| tuner_ops = &frontend_ops->tuner_ops; |
| if (tuner_ops->get_state) { |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 1); |
| |
| err = tuner_ops->get_state(fe, DVBFE_TUNER_FREQUENCY, &state); |
| if (err < 0) { |
| printk(KERN_ERR "%s: Invalid parameter\n", __func__); |
| return err; |
| } |
| |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 0); |
| |
| *frequency = state.frequency; |
| } |
| |
| return 0; |
| } |
| |
| static int stb6100_set_freq(struct dvb_frontend *fe, u32 frequency) |
| { |
| struct dvb_frontend_ops *frontend_ops = NULL; |
| struct dvb_tuner_ops *tuner_ops = NULL; |
| struct tuner_state state; |
| int err = 0; |
| |
| state.frequency = frequency; |
| if (&fe->ops) |
| frontend_ops = &fe->ops; |
| if (&frontend_ops->tuner_ops) |
| tuner_ops = &frontend_ops->tuner_ops; |
| if (tuner_ops->set_state) { |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 1); |
| |
| err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &state); |
| if (err < 0) { |
| printk(KERN_ERR "%s: Invalid parameter\n", __func__); |
| return err; |
| } |
| |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 0); |
| |
| } |
| |
| return 0; |
| } |
| |
| static int stb6100_get_bandw(struct dvb_frontend *fe, u32 *bandwidth) |
| { |
| struct dvb_frontend_ops *frontend_ops = NULL; |
| struct dvb_tuner_ops *tuner_ops = NULL; |
| struct tuner_state state; |
| int err = 0; |
| |
| if (&fe->ops) |
| frontend_ops = &fe->ops; |
| if (&frontend_ops->tuner_ops) |
| tuner_ops = &frontend_ops->tuner_ops; |
| if (tuner_ops->get_state) { |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 1); |
| |
| err = tuner_ops->get_state(fe, DVBFE_TUNER_BANDWIDTH, &state); |
| if (err < 0) { |
| printk(KERN_ERR "%s: Invalid parameter\n", __func__); |
| return err; |
| } |
| |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 0); |
| |
| *bandwidth = state.bandwidth; |
| } |
| |
| return 0; |
| } |
| |
| static int stb6100_set_bandw(struct dvb_frontend *fe, u32 bandwidth) |
| { |
| struct dvb_frontend_ops *frontend_ops = NULL; |
| struct dvb_tuner_ops *tuner_ops = NULL; |
| struct tuner_state state; |
| int err = 0; |
| |
| state.bandwidth = bandwidth; |
| if (&fe->ops) |
| frontend_ops = &fe->ops; |
| if (&frontend_ops->tuner_ops) |
| tuner_ops = &frontend_ops->tuner_ops; |
| if (tuner_ops->set_state) { |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 1); |
| |
| err = tuner_ops->set_state(fe, DVBFE_TUNER_BANDWIDTH, &state); |
| if (err < 0) { |
| printk(KERN_ERR "%s: Invalid parameter\n", __func__); |
| return err; |
| } |
| |
| if (frontend_ops->i2c_gate_ctrl) |
| frontend_ops->i2c_gate_ctrl(fe, 0); |
| |
| } |
| |
| return 0; |
| } |
