128 строки
3.3 KiB
C
128 строки
3.3 KiB
C
/*
|
|
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 "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;
|
|
}
|