linux/drivers/media/dvb-frontends/ves1820.h
Peter Senna Tschudin 7b34be71db [media] use IS_ENABLED() macro
This patch introduces the use of IS_ENABLED() macro. For example,
replacing:
 #if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
with:
 #if IS_ENABLED(CONFIG_I2C)
All changes made by this patch respect the same replacement pattern.

Reported-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-06 09:24:09 -02:00

56 lines
1.6 KiB
C

/*
VES1820 - Single Chip Cable Channel Receiver driver module
Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
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.
*/
#ifndef VES1820_H
#define VES1820_H
#include <linux/dvb/frontend.h>
#define VES1820_SELAGC_PWM 0
#define VES1820_SELAGC_SIGNAMPERR 1
struct ves1820_config
{
/* the demodulator's i2c address */
u8 demod_address;
/* value of XIN to use */
u32 xin;
/* does inversion need inverted? */
u8 invert:1;
/* SELAGC control */
u8 selagc:1;
};
#if IS_ENABLED(CONFIG_DVB_VES1820)
extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
struct i2c_adapter* i2c, u8 pwm);
#else
static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
struct i2c_adapter* i2c, u8 pwm)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif // CONFIG_DVB_VES1820
#endif // VES1820_H