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