fd83e2487e
Use return value of dvb_pll_configure() to fill priv->frequency In lgh06xf_set_params: Rename int variable "err" to "result". Remove needless calculation of the set frequency, since this value is now being returned by dvb_pll_configure(). Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
135 lines
3.4 KiB
C
135 lines
3.4 KiB
C
/*
|
|
* lgh06xf.c - ATSC Tuner support for LG TDVS-H06xF
|
|
*
|
|
* 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 "dvb-pll.h"
|
|
#include "lgh06xf.h"
|
|
|
|
#define LG_H06XF_PLL_I2C_ADDR 0x61
|
|
|
|
struct lgh06xf_priv {
|
|
struct i2c_adapter *i2c;
|
|
u32 frequency;
|
|
};
|
|
|
|
static int lgh06xf_release(struct dvb_frontend *fe)
|
|
{
|
|
kfree(fe->tuner_priv);
|
|
fe->tuner_priv = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int lgh06xf_set_params(struct dvb_frontend* fe,
|
|
struct dvb_frontend_parameters* params)
|
|
{
|
|
struct lgh06xf_priv *priv = fe->tuner_priv;
|
|
u8 buf[4];
|
|
struct i2c_msg msg = { .addr = LG_H06XF_PLL_I2C_ADDR, .flags = 0,
|
|
.buf = buf, .len = sizeof(buf) };
|
|
u32 frequency;
|
|
int result;
|
|
|
|
if ((result = dvb_pll_configure(&dvb_pll_lg_tdvs_h06xf, buf,
|
|
params->frequency, 0)) < 0)
|
|
return result;
|
|
else
|
|
frequency = result;
|
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
|
if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
|
|
printk(KERN_WARNING "lgh06xf: %s error "
|
|
"(addr %02x <- %02x, result = %i)\n",
|
|
__FUNCTION__, buf[0], buf[1], result);
|
|
if (result < 0)
|
|
return result;
|
|
else
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
/* Set the Auxiliary Byte. */
|
|
buf[0] = buf[2];
|
|
buf[0] &= ~0x20;
|
|
buf[0] |= 0x18;
|
|
buf[1] = 0x50;
|
|
msg.len = 2;
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
|
if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
|
|
printk(KERN_WARNING "lgh06xf: %s error "
|
|
"(addr %02x <- %02x, result = %i)\n",
|
|
__FUNCTION__, buf[0], buf[1], result);
|
|
if (result < 0)
|
|
return result;
|
|
else
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
priv->frequency = frequency;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lgh06xf_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
|
{
|
|
struct lgh06xf_priv *priv = fe->tuner_priv;
|
|
*frequency = priv->frequency;
|
|
return 0;
|
|
}
|
|
|
|
static struct dvb_tuner_ops lgh06xf_tuner_ops = {
|
|
.release = lgh06xf_release,
|
|
.set_params = lgh06xf_set_params,
|
|
.get_frequency = lgh06xf_get_frequency,
|
|
};
|
|
|
|
struct dvb_frontend* lgh06xf_attach(struct dvb_frontend *fe,
|
|
struct i2c_adapter *i2c)
|
|
{
|
|
struct lgh06xf_priv *priv = NULL;
|
|
|
|
priv = kzalloc(sizeof(struct lgh06xf_priv), GFP_KERNEL);
|
|
if (priv == NULL)
|
|
return NULL;
|
|
|
|
priv->i2c = i2c;
|
|
|
|
memcpy(&fe->ops.tuner_ops, &lgh06xf_tuner_ops,
|
|
sizeof(struct dvb_tuner_ops));
|
|
|
|
strlcpy(fe->ops.tuner_ops.info.name, dvb_pll_lg_tdvs_h06xf.name,
|
|
sizeof(fe->ops.tuner_ops.info.name));
|
|
|
|
fe->ops.tuner_ops.info.frequency_min = dvb_pll_lg_tdvs_h06xf.min;
|
|
fe->ops.tuner_ops.info.frequency_max = dvb_pll_lg_tdvs_h06xf.max;
|
|
|
|
fe->tuner_priv = priv;
|
|
return fe;
|
|
}
|
|
|
|
EXPORT_SYMBOL(lgh06xf_attach);
|
|
|
|
MODULE_DESCRIPTION("LG TDVS-H06xF ATSC Tuner support");
|
|
MODULE_AUTHOR("Michael Krufky");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|