782d8b743a
Instead of checking everywhere there for 3 symbols, use instead IS_ENABLED macro. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* lnbp22.h - driver for lnb supply and control ic lnbp22
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*
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* Copyright (C) 2006 Dominik Kuhlen
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* Based on lnbp21.h
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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
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* GNU General Public License for more details.
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*
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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*
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*
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* the project's page is at http://www.linuxtv.org
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*/
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#ifndef _LNBP22_H
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#define _LNBP22_H
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#include <linux/kconfig.h>
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/* Enable */
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#define LNBP22_EN 0x10
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/* Voltage selection */
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#define LNBP22_VSEL 0x02
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/* Plus 1 Volt Bit */
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#define LNBP22_LLC 0x01
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#include <linux/dvb/frontend.h>
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#if IS_ENABLED(CONFIG_DVB_LNBP22)
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/*
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* override_set and override_clear control which system register bits (above)
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* to always set & clear
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*/
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extern struct dvb_frontend *lnbp22_attach(struct dvb_frontend *fe,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *lnbp22_attach(struct dvb_frontend *fe,
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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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#endif /* CONFIG_DVB_LNBP22 */
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#endif /* _LNBP22_H */
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