782d8b743a
Instead of checking everywhere there for 3 symbols, use instead IS_ENABLED macro. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
90 lines
1.8 KiB
C
90 lines
1.8 KiB
C
/*
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* Realtek RTL2830 DVB-T demodulator driver
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*
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* Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef RTL2830_H
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#define RTL2830_H
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#include <linux/kconfig.h>
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#include <linux/dvb/frontend.h>
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struct rtl2830_config {
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/*
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* Demodulator I2C address.
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*/
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u8 i2c_addr;
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/*
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* Xtal frequency.
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* Hz
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* 4000000, 16000000, 25000000, 28800000
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*/
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u32 xtal;
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/*
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* TS output mode.
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*/
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u8 ts_mode;
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/*
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* Spectrum inversion.
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*/
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bool spec_inv;
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/*
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*/
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u8 vtop;
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/*
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*/
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u8 krf;
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/*
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*/
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u8 agc_targ_val;
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};
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#if IS_ENABLED(CONFIG_DVB_RTL2830)
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extern struct dvb_frontend *rtl2830_attach(
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const struct rtl2830_config *config,
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struct i2c_adapter *i2c
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);
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extern struct i2c_adapter *rtl2830_get_tuner_i2c_adapter(
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struct dvb_frontend *fe
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);
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#else
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static inline struct dvb_frontend *rtl2830_attach(
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const struct rtl2830_config *config,
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struct i2c_adapter *i2c
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)
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{
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pr_warn("%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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static inline struct i2c_adapter *rtl2830_get_tuner_i2c_adapter(
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struct dvb_frontend *fe
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)
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{
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return NULL;
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}
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#endif
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#endif /* RTL2830_H */
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