linux/drivers/media/dvb-frontends/drxd.h
Mauro Carvalho Chehab 782d8b743a [media] dvb-frontends: use IS_ENABLED
Instead of checking everywhere there for 3 symbols, use instead
IS_ENABLED macro.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-23 09:03:59 -03:00

74 lines
1.8 KiB
C

/*
* drxd.h: DRXD DVB-T demodulator driver
*
* Copyright (C) 2005-2007 Micronas
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 only, as published by the Free Software Foundation.
*
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*/
#ifndef _DRXD_H_
#define _DRXD_H_
#include <linux/kconfig.h>
#include <linux/types.h>
#include <linux/i2c.h>
struct drxd_config {
u8 index;
u8 pll_address;
u8 pll_type;
#define DRXD_PLL_NONE 0
#define DRXD_PLL_DTT7520X 1
#define DRXD_PLL_MT3X0823 2
u32 clock;
u8 insert_rs_byte;
u8 demod_address;
u8 demoda_address;
u8 demod_revision;
/* If the tuner is not behind an i2c gate, be sure to flip this bit
or else the i2c bus could get wedged */
u8 disable_i2c_gate_ctrl;
u32 IF;
s16(*osc_deviation) (void *priv, s16 dev, int flag);
};
#if IS_ENABLED(CONFIG_DVB_DRXD)
extern
struct dvb_frontend *drxd_attach(const struct drxd_config *config,
void *priv, struct i2c_adapter *i2c,
struct device *dev);
#else
static inline
struct dvb_frontend *drxd_attach(const struct drxd_config *config,
void *priv, struct i2c_adapter *i2c,
struct device *dev)
{
printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",
__func__);
return NULL;
}
#endif
extern int drxd_config_i2c(struct dvb_frontend *, int);
#endif