diff options
Diffstat (limited to 'drivers/media/dvb-frontends/stb6100_proc.h')
| -rw-r--r-- | drivers/media/dvb-frontends/stb6100_proc.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/stb6100_proc.h b/drivers/media/dvb-frontends/stb6100_proc.h new file mode 100644 index 000000000000..112163a48622 --- /dev/null +++ b/drivers/media/dvb-frontends/stb6100_proc.h @@ -0,0 +1,138 @@ +/* + 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; +} |