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782d8b743a
Instead of checking everywhere there for 3 symbols, use instead IS_ENABLED macro. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
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* Sharp s921 driver
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*
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* Copyright (C) 2009 Mauro Carvalho Chehab <mchehab@redhat.com>
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* Copyright (C) 2009 Douglas Landgraf <dougsland@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef S921_H
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#define S921_H
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#include <linux/kconfig.h>
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#include <linux/dvb/frontend.h>
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struct s921_config {
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/* the demodulator's i2c address */
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u8 demod_address;
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};
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#if IS_ENABLED(CONFIG_DVB_S921)
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extern struct dvb_frontend *s921_attach(const struct s921_config *config,
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struct i2c_adapter *i2c);
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extern struct i2c_adapter *s921_get_tuner_i2c_adapter(struct dvb_frontend *);
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#else
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static inline struct dvb_frontend *s921_attach(
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const struct s921_config *config, struct i2c_adapter *i2c)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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static struct i2c_adapter *
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s921_get_tuner_i2c_adapter(struct dvb_frontend *fe)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif
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#endif /* S921_H */
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