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9dc353c67c
Instead of checking everywhere there for 3 symbols, use instead IS_ENABLED macro. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*
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* Driver for Xceive XC5000 "QAM/8VSB single chip tuner"
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*
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* Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
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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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*
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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 __XC5000_H__
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#define __XC5000_H__
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#include <linux/kconfig.h>
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#include <linux/firmware.h>
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struct dvb_frontend;
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struct i2c_adapter;
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#define XC5000A 1
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#define XC5000C 2
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struct xc5000_config {
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u8 i2c_address;
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u32 if_khz;
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u8 radio_input;
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u16 xtal_khz;
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int chip_id;
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};
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/* xc5000 callback command */
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#define XC5000_TUNER_RESET 0
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/* Possible Radio inputs */
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#define XC5000_RADIO_NOT_CONFIGURED 0
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#define XC5000_RADIO_FM1 1
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#define XC5000_RADIO_FM2 2
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#define XC5000_RADIO_FM1_MONO 3
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/* For each bridge framework, when it attaches either analog or digital,
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* it has to store a reference back to its _core equivalent structure,
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* so that it can service the hardware by steering gpio's etc.
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* Each bridge implementation is different so cast devptr accordingly.
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* The xc5000 driver cares not for this value, other than ensuring
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* it's passed back to a bridge during tuner_callback().
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*/
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#if IS_ENABLED(CONFIG_MEDIA_TUNER_XC5000)
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extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
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struct i2c_adapter *i2c,
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const struct xc5000_config *cfg);
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#else
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static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
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struct i2c_adapter *i2c,
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const struct xc5000_config *cfg)
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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
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