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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>
77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*
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* Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator
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* ATBM8830, ATBM8831
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*
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* Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com>
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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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ATBM8830_H__
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#define __ATBM8830_H__
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#include <linux/kconfig.h>
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#include <linux/dvb/frontend.h>
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#include <linux/i2c.h>
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#define ATBM8830_PROD_8830 0
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#define ATBM8830_PROD_8831 1
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struct atbm8830_config {
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/* product type */
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u8 prod;
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/* the demodulator's i2c address */
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u8 demod_address;
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/* parallel or serial transport stream */
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u8 serial_ts;
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/* transport stream clock output only when receiving valid stream */
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u8 ts_clk_gated;
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/* Decoder sample TS data at rising edge of clock */
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u8 ts_sampling_edge;
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/* Oscillator clock frequency */
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u32 osc_clk_freq; /* in kHz */
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/* IF frequency */
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u32 if_freq; /* in kHz */
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/* Swap I/Q for zero IF */
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u8 zif_swap_iq;
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/* Tuner AGC settings */
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u8 agc_min;
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u8 agc_max;
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u8 agc_hold_loop;
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};
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#if IS_ENABLED(CONFIG_DVB_ATBM8830)
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extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline
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struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
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struct i2c_adapter *i2c) {
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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_ATBM8830 */
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#endif /* __ATBM8830_H__ */
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