/* 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. */ #include <linux/dvb/frontend.h> #include <media/dvb_frontend.h> static int stb6100_get_freq(struct dvb_frontend *fe, u32 *frequency) { struct dvb_frontend_ops *frontend_ops = &fe->ops; struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; int err = 0; if (tuner_ops->get_frequency) { if (frontend_ops->i2c_gate_ctrl) frontend_ops->i2c_gate_ctrl(fe, 1); err = tuner_ops->get_frequency(fe, frequency); if (err < 0) { printk("%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_set_freq(struct dvb_frontend *fe, u32 frequency) { struct dvb_frontend_ops *frontend_ops = &fe->ops; struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; struct dtv_frontend_properties *c = &fe->dtv_property_cache; u32 bw = c->bandwidth_hz; int err = 0; c->frequency = frequency; c->bandwidth_hz = 0; /* Don't adjust the bandwidth */ if (tuner_ops->set_params) { if (frontend_ops->i2c_gate_ctrl) frontend_ops->i2c_gate_ctrl(fe, 1); err = tuner_ops->set_params(fe); c->bandwidth_hz = bw; if (err < 0) { printk("%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 = &fe->ops; struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; int err = 0; if (tuner_ops->get_bandwidth) { if (frontend_ops->i2c_gate_ctrl) frontend_ops->i2c_gate_ctrl(fe, 1); err = tuner_ops->get_bandwidth(fe, bandwidth); 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_set_bandw(struct dvb_frontend *fe, u32 bandwidth) { struct dvb_frontend_ops *frontend_ops = &fe->ops; struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; struct dtv_frontend_properties *c = &fe->dtv_property_cache; u32 freq = c->frequency; int err = 0; c->bandwidth_hz = bandwidth; c->frequency = 0; /* Don't adjust the frequency */ if (tuner_ops->set_params) { if (frontend_ops->i2c_gate_ctrl) frontend_ops->i2c_gate_ctrl(fe, 1); err = tuner_ops->set_params(fe); c->frequency = freq; 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; }